Rubber fine pulverizer

Abstract

The utility model discloses a rubber fine pulverizer, which belongs to the field of powder rubber processing and comprises a box body, a feeding port is arranged at the upper end of the box body, a vertical connecting plate is arranged at the upper end in the box body, a crushing device is jointly mounted on the vertical connecting plate and the side wall of the box body, a pulverizing device is arranged at the lower end in the box body, and the pulverizing device is connected with the box body. The grinding device comprises a static grinding disc and a movable grinding disc, the static grinding disc is fixed on the inner wall of the box body, a circular-truncated-cone-shaped grinding area is arranged on the static grinding disc, the movable grinding disc comprises a rotating main shaft and a columnar grinder, the columnar grinder is fixed on the rotating main shaft, and the rotating main shaft is fixed on the rotating main shaft. The two ends of the rotating main shaft are rotationally installed on the upper end face and the lower end face of the box body, the columnar grinder is installed in the grinding area of the static grinding disc, and two sets of symmetrically-installed special spray guns are arranged below the crushing device. And the quality of the powder rubber is improved.

Description

Technical Field

[0001] The utility model relates to the field of powder rubber processing, in particular to a rubber fine grinding machine. Background Art

[0002] The production process of powdered rubber usually involves cutting waste rubber products into rubber particles, and then grinding the rubber particles into powder using a grinding device.

[0003] The moving grinding disc and the static grinding disc of the existing grinding device are generally arranged horizontally, and the static grinding disc is connected to the feeding device, which can continuously push the rubber particles into the grinding gap between the moving grinding disc and the static grinding disc. As the moving grinding disc rotates, the rubber particles continuously move toward the edge of the grinding disc during the grinding process, and are finally ground into rubber powder and separated from the edge of the grinding disc.

[0004] If the rubber particles fed into the grinding gap by the feeding device are of different sizes, larger particles may enter the grinding gap and be squeezed out from the edge of the grinding disc without being fully ground, resulting in the production of low-quality powdered rubber that needs to be screened before grinding. Summary of the invention

[0005] In order to solve the problems existing in the prior art, the utility model provides a rubber fine grinding machine, in which rubber particles can be fully ground in a grinding disc without discharging the materials too quickly, thereby improving the quality of the powdered rubber.

[0006] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a rubber fine grinding machine, comprising a box body, a feeding port is provided at the upper end of the box body, a vertical connecting plate is provided at the upper end of the box body, a crushing device is installed on the vertical connecting plate and the side wall of the box body, and the crushing device is located below the feeding port;

[0007] A grinding device is provided at the lower end of the box body, and the grinding device includes a static grinding disc and a dynamic grinding disc, the static grinding disc is fixed on the inner wall of the box body, a truncated cone-shaped grinding area is provided on the static grinding disc, and the diameter of the grinding area gradually decreases downward along the axis, and the dynamic grinding disc includes a rotating main shaft and a columnar grinder, the columnar grinder is fixed on the rotating main shaft, and both ends of the rotating main shaft are rotatably mounted on the upper and lower end surfaces of the box body, the axis of the rotating main shaft coincides with the axis of the grinding area, and the columnar grinder is installed in the grinding area of ​​the static grinding disc;

[0008] Two sets of symmetrically installed special spray guns for converting rubber particles from rubber particle state to glass state are arranged below the crushing device. The two special spray guns are respectively fixed on the vertical connecting plate and the side wall of the box body.

[0009] Preferably, the upper end surface of the static grinding disc is provided with a feed slope inclined downward along the grinding zone direction.

[0010] Preferably, the grinding area surface of the movable grinding disc and the surface of the cylindrical grinder are both provided with vertical knife grooves.

[0011] Preferably, bevel gears are provided on both the rotating main shaft and the crushing device, and the two bevel gears cooperate to realize the transmission between the crushing device and the rotating main shaft.

[0012] Preferably, the crushing device comprises an active roller shaft and a driven roller shaft, the bevel gear is installed at one end of the active roller shaft close to the rotating main shaft, and the active roller shaft and the driven roller shaft are both provided with cylindrical gears at one end away from the vertical connecting plate.

[0013] Preferably, side baffles inclined downward along the direction of the special spray gun are provided on both sides of the crushing device, and both ends of the side baffles are respectively fixed to the vertical connecting plate and the box body.

[0014] Preferably, a discharge port is provided on the side wall at the lower end of the box body, and a discharge plate inclined downward along the discharge port is provided below the grinding device.

[0015] Preferably, the upper end of the cylindrical grinder is provided with a truncated cone-shaped blanking end surface.

[0016] The beneficial effects of the utility model are as follows:

[0017] 1. The utility model sets the grinding area of ​​the static grinding disc into a truncated cone shape, and the columnar grinder rotates in the grinding area. The rubber particles entering the grinding area will be repeatedly ground by the grinding device until they are fully ground into fine powder and then fall from the lower end of the grinding area, thereby improving the quality of the powdered rubber.

[0018] 2. The utility model is provided with a crushing device above the grinding device to crush the input rubber into rubber particles. The crushed rubber can directly fall onto the crushing device for grinding, thereby improving production efficiency.

[0019] 3. The utility model is provided with a special spray gun below the grinding device, which can quickly make the rubber particles glassy, ​​improve the speed and quality of grinding, and at the same time improve the efficiency of the entire device and avoid the accumulation of powder in the grinding device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a cross-sectional view of a rubber fine grinding machine according to the utility model;

[0021] Figure 2 The utility model is a schematic diagram of the installation position of the side baffle of a rubber fine grinding machine.

[0022] In the figure: 1-box, 2-rotating main shaft, 3-vertical connecting plate, 4-feeding port, 5-side baffle, 6-cylindrical gear, 7-crushing device, 8-static grinding disc, 9-grinding area, 10-column grinder, 11-discharging plate, 12-discharging port, 13-blanking end face, 14-special spray gun, 15-bevel gear, 16-active roller shaft, 17-driven roller shaft, 18-active grinding disc. DETAILED DESCRIPTION

[0023] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings.

[0024] like Figure 1-2 The rubber fine grinding machine shown in the figure comprises a box body 1, a feeding port 4 is provided at the upper end of the box body 1, a vertical connecting plate 3 is provided at the upper end of the inner part of the box body 1, a crushing device 7 is installed on the vertical connecting plate 3 and the side wall of the box body 1, and the crushing device 7 is located below the feeding port 4;

[0025] A grinding device is provided at the lower end of the box body 1, and the grinding device includes a static grinding disc 8 and a dynamic grinding disc 18. The static grinding disc 8 is fixed on the inner wall of the box body 1. A truncated cone-shaped grinding area 9 is provided on the static grinding disc 8. The diameter of the grinding area 9 gradually decreases downward along the axis. The dynamic grinding disc 18 includes a rotating main shaft 2 and a columnar grinder 10. The columnar grinder 10 is fixed on the rotating main shaft 2. Both ends of the rotating main shaft 2 are rotatably mounted on the upper and lower end surfaces of the box body 1. The axis of the rotating main shaft 2 coincides with the axis of the grinding area 9. The columnar grinder 10 is located in the grinding area 9 of the static grinding disc 8. The gap formed by the columnar grinder 10 and the static grinding disc 8 on one side close to each other gradually narrows downward along the axis. When the rubber particles enter the gap, they will be repeatedly ground by the dynamic grinding disc 18 and the static grinding disc 8. After being ground, the diameter of the rubber particles becomes smaller and gradually falls along the gap until they are ground to the corresponding mesh number before they can fall from the lower end of the grinding area 9, thereby improving the grinding quality of the rubber.

[0026] Two groups of symmetrically installed special spray guns 14 are provided below the crushing device 7. The two special spray guns 14 are respectively fixed on the vertical connecting plate 3 and the side wall of the box body 1. The rubber is crushed into rubber particles by the crushing device 7. During the falling process, the rubber particles pass through the special spray guns 14. The sprayed material of the special spray guns 14 transforms the rubber particles from rubber particles to glass, making it easier to be ground by the grinding device, thereby improving the grinding speed and grinding quality, avoiding overheating of the crushing device 7 and the grinding device, and affecting the operation of the device.

[0027] The upper end surface of the static grinding disc 8 of the utility model is provided with a feed slope which is inclined downward along the grinding area 9 , so that all the rubber particles processed by the upper crushing device 7 fall into the grinding area 9 .

[0028] Specifically, vertical grooves are provided on the surface of the grinding area 9 of the movable grinding disc 18 and the surface of the columnar grinder 10 , so that the powdered rubber can be discharged smoothly from the lower end of the grinding area 9 .

[0029] In the utility model, bevel gears 15 are provided on the rotating main shaft 2 and the crushing device 7 , and the two bevel gears 15 cooperate to realize the transmission between the crushing device 7 and the rotating main shaft 2 .

[0030] Specifically, the crushing device 7 includes an active roller shaft 16 and a driven roller shaft 17 , a bevel gear 15 is installed at one end of the active roller shaft 16 close to the rotating main shaft 2 , and a cylindrical gear 6 is provided at one end of the active roller shaft 16 and the driven roller shaft 17 away from the vertical connecting plate 3 .

[0031] The utility model crushing device 7 is provided with side baffles 5 inclined downward along the direction of the special spray gun 14 on both sides, and the two ends of the side baffles 5 are respectively fixed on the vertical connecting plate 3 and the box body 1, which can prevent the rubber from splashing around during crushing and affecting the crushing effect of the rubber, and at the same time, all the rubber particles can pass through the special spray gun 14 when falling.

[0032] Specifically, a discharge port 12 is provided on the side wall of the lower end of the box body 1, and a discharge plate 11 inclined downward along the discharge port 12 is provided below the grinding device.

[0033] In the present invention, a truncated cone-shaped blanking end surface 13 is provided at the upper end of the columnar grinder 10 .

[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 fine grinding machine, characterized in that: It comprises a box body, the upper end of which is provided with a feeding port, the upper end of the inner part of which is provided with a vertical connecting plate, the vertical connecting plate and the side wall of the box body are jointly provided with a crushing device, and the crushing device is located below the feeding port; A grinding device is provided at the lower end of the box body, and the grinding device includes a static grinding disc and a dynamic grinding disc, the static grinding disc is fixed on the inner wall of the box body, a truncated cone-shaped grinding area is provided on the static grinding disc, and the diameter of the grinding area gradually decreases downward along the axis, and the dynamic grinding disc includes a rotating main shaft and a columnar grinder, the columnar grinder is fixed on the rotating main shaft, and both ends of the rotating main shaft are rotatably mounted on the upper and lower end surfaces of the box body, the axis of the rotating main shaft coincides with the axis of the grinding area, and the columnar grinder is installed in the grinding area of ​​the static grinding disc; Two sets of symmetrically installed special spray guns for converting rubber particles from rubber particle state to glass state are arranged below the crushing device. The two special spray guns are respectively fixed on the vertical connecting plate and the side wall of the box body.

2. A rubber fine grinding machine according to claim 1, characterized in that: The upper end surface of the static grinding disc is provided with a feed slope which is inclined downward along the grinding area.

3. A rubber fine grinding machine according to claim 1, characterized in that: The grinding area surface of the movable grinding disc and the surface of the columnar grinder are both provided with vertical knife grooves.

4. A rubber fine grinding machine according to claim 1, characterized in that: The rotating main shaft and the crushing device are both provided with bevel gears, and the two bevel gears cooperate to realize the transmission between the crushing device and the rotating main shaft.

5. A rubber fine grinding machine according to claim 4, characterized in that: The crushing device comprises an active roller shaft and a driven roller shaft, the bevel gear is mounted on one end of the active roller shaft close to the rotating main shaft, and the active roller shaft and the driven roller shaft are both provided with cylindrical gears at one end away from the vertical connecting plate.

6. A rubber fine grinding machine according to claim 1, characterized in that: Side baffles inclined downward along the direction of the special spray gun are arranged on both sides of the crushing device, and the two ends of the side baffles are respectively fixed on the vertical connecting plate and the box body.

7. A rubber fine grinding machine according to claim 1, characterized in that: A discharge port is arranged on the side wall at the lower end of the box body, and a discharge plate inclined downward along the discharge port is arranged below the grinding device.

8. A rubber fine grinding machine according to claim 1, characterized in that: The upper end of the columnar grinder is provided with a truncated cone-shaped blanking end surface.

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