Pulverizer with multi-stage pulverizing function

Abstract

The utility model discloses a flour mill with a multistage milling function, which comprises a working bin, a grinding roller, a compression roller and a discharge port, a vacuum pump is mounted on one side of the top end in the working bin, the bottom end of the vacuum pump is fixedly connected with a first transmission pipe, a control valve is mounted on one side of the first transmission pipe, and the first transmission pipe is fixedly connected with a second transmission pipe. And the top end of one side of the vacuum pump is fixedly connected with a second transmission pipe. The grinding roller is installed in the feeding port, so that powder entering the working bin can be subjected to primary grinding work, meanwhile, the powder falling into the working bin is ground through the pressing roller, secondary grinding work can be rapidly conducted, meanwhile, the ground powder can fall into the discharging port through the filter plate to be discharged, and the working efficiency is improved. And a discharging opening in the working bin is started, and the powder which is not screened on the filter plate can be conveyed into a feeding opening through a second conveying pipe to be subjected to powder grinding again.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding mills, in particular to a grinding mill with a multi-stage grinding function. Background Art

[0002] Grinding mills are widely used in the grinding of mineral products in the fields of metallurgy, building materials, chemicals, mining, etc. The effects of grinding mills vary according to the fineness of the material to be ground and the fineness of the material to be discharged. Its main function is to grind the powder to ensure the overall fineness of the powder.

[0003] A grinding bin of a grinding machine disclosed in the Chinese utility model patent application disclosure specification CN107262211B has bearings at both ends of the grinding bin, a main shaft is arranged in the bearings, and blades are arranged on the main shaft; a feed port is arranged at the top of the grinding bin, and a screen is arranged below the feed port; a discharge port is arranged at the bottom of the grinding bin; a plurality of grinding parts protruding toward the inside of the grinding bin are arranged on the inner wall of the grinding bin; the structural design inside the grinding bin is simple, and the grinding parts are arranged on the inner wall of the grinding bin, which can cooperate with the blades on the main shaft to effectively improve the grinding effect, but when the grinding machine is grinding, it is not convenient to quickly perform secondary processing on unqualified powder, so that the unscreened powder needs to be manually poured back into the grinding machine for secondary grinding, which increases the labor force of the workers and affects the convenience and quickness of the use of the grinding machine. Utility Model Content

[0004] The purpose of the utility model is to provide a grinding mill with a multi-stage grinding function to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding machine with a multi-stage grinding function, comprising a working bin, a grinding roller, a pressure roller and a discharge port, a vacuum pump is installed on one side of the top end of the working bin, a first transmission pipe is fixedly connected to the bottom end of the vacuum pump, a control valve is installed on one side of the first transmission pipe, a second transmission pipe is fixedly connected to the top end of one side of the vacuum pump, a first driving motor is installed at the middle position of one side of the working bin, a turntable is installed at the output shaft end of the first driving motor, first connecting rods are connected on both sides of the turntable, the turntable and the first connecting rod are fixedly connected, a pressure roller is connected on one side of the first connecting rod, the first connecting rod and the pressure roller are rotatably connected, and a discharge port is fixedly connected to the middle position of the bottom end of the working bin.

[0006] Preferably, a control switch is installed at the top of one side of the outside of the working chamber, and a window is fixedly connected to the middle position of one side of the working chamber.

[0007] Preferably, a feed port is fixedly connected to the middle position of the top of the working bin, guide plates are fixedly connected to the middle positions on both sides of the feed port, and a grinding roller is installed at the bottom end of the feed port.

[0008] Preferably, a filter plate is fixedly connected to the top of the discharge port, and sliding rods are fixedly connected to the inside of both sides of the bottom of the working bin.

[0009] Preferably, the outside of the slide rod is slidably connected to a slider, both sides of the slider are fixedly connected to springs, the bottom end of the slider is fixedly connected to a second connecting rod, and one side of the second connecting rod is fixedly connected to a push plate.

[0010] Preferably, a second driving motor is installed on both sides of the bottom end of the working chamber, and a toggle block is installed on the output shaft end of the second driving motor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. This kind of mill with multi-stage grinding function can perform preliminary grinding on the powder entering the working bin by installing a grinding roller inside the feed port. At the same time, the powder falling into the working bin can be quickly ground for the second time by being crushed by the pressure roller. At the same time, the ground powder can fall into the inside of the discharge port through the filter plate for discharge, and the discharge port in the working bin is started, and the powder that has not been screened on the filter plate can be input into the inside of the feed port through the second transmission pipe for re-grinding, thereby effectively improving the powder effect of the mill;

[0013] 2. This type of grinding mill with multi-stage grinding function has two sets of second driving motors installed at the bottom end inside the working chamber. When the second driving motor is started, it can drive the toggle block to rotate. At this time, the toggle block can repeatedly push the second connecting rod to move. At this time, the second connecting rod can drive the slider to slide on the slide rod and squeeze the spring. At the same time, the second connecting rod can drive the push plate to repeatedly hit the outer wall of the discharge port, thereby accelerating the powder discharge rate of the grinding mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a front view structural schematic diagram of the utility model;

[0016] Figure 3 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0017] Figure 4 It is a schematic diagram of the overall structure of the first driving motor of the utility model.

[0018] In the figure: 1. working chamber; 101. control switch; 102. window; 2. feed port; 201. guide plate; 3. grinding roller; 4. vacuum pump; 401. first transmission pipe; 402. control valve; 403. second transmission pipe; 5. first drive motor; 501. turntable; 502. first connecting rod; 6. pressure roller; 7. discharge port; 701. filter plate; 8. sliding rod; 801. slider; 802. spring; 803. second connecting rod; 804. push plate; 9. second drive motor; 901. toggle block. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 The utility model provides an embodiment: a grinding machine with a multi-stage grinding function, comprising a working bin 1, a grinding roller 3, a pressure roller 6 and a discharge port 7, a control switch 101 is installed at the top of one side of the working bin 1, and a window 102 is fixedly connected to the middle position of one side of the working bin 1. The grinding roller 3, the vacuum pump 4, the first drive motor 5 and the second drive motor 9 can be controlled and switched by the control switch 101, and the window 102 can be used to observe the grinding situation inside the working bin 1;

[0021] A feed port 2 is fixedly connected to the middle position of the top of the working bin 1, and guide plates 201 are fixedly connected to the middle positions on both sides of the feed port 2. A grinding roller 3 is installed at the bottom of the feed port 2, and a driving motor is provided on one side of the grinding roller 3, so as to drive the grinding roller 3 inside the feed port 2 to rotate toward the middle position inside the feed port 2. Guide plates 201 are provided on both sides of the feed port 2 to guide the powder entering the feed port 2, and the powder is initially ground by the grinding roller 3.

[0022] A vacuum pump 4 is installed on one side of the top of the working chamber 1, and a first transmission pipe 401 is fixedly connected to the bottom of the vacuum pump 4, a control valve 402 is installed on one side of the first transmission pipe 401, and a second transmission pipe 403 is fixedly connected to the top of one side of the vacuum pump 4. When the control valve 402 is opened and the vacuum pump 4 is started, the unscreened powder on the top of the filter plate 701 can be input into the second transmission pipe 403 through the first transmission pipe 401, and the powder can be introduced into the inside of the feed port 2 through the second transmission pipe 403 to perform circulating grinding work;

[0023] A first driving motor 5 is installed in the middle position of one side inside the working bin 1, and a rotating disk 501 is installed at the output shaft end of the first driving motor 5. First connecting rods 502 are connected to both sides of the rotating disk 501. The rotating disk 501 and the first connecting rod 502 are fixedly connected. A pressing roller 6 is connected to one side of the first connecting rod 502. The first connecting rod 502 and the pressing roller 6 are rotatably connected. When the first driving motor 5 is started, the rotating disk 501 on one side can be driven to rotate, and the rotating disk 501 can drive the first connecting rods 502 and the pressing roller 6 on both sides to rotate, and at the same time, the pressing roller 6 can repeatedly grind the powder inside the working bin 1.

[0024] A discharge port 7 is fixedly connected to the middle position of the bottom of the working bin 1, and a filter plate 701 is fixedly connected to the top of the discharge port 7. The filter plate 701 is arranged on the top of the discharge port 7 to quickly screen the ground powder.

[0025] The inside of both sides of the bottom of the working chamber 1 is fixedly connected with a slide bar 8, and the outside of the slide bar 8 is slidably connected with a slider 801, and the two sides of the slider 801 are fixedly connected with springs 802, and the bottom of the slider 801 is fixedly connected with a second connecting rod 803, and one side of the second connecting rod 803 is fixedly connected with a push plate 804. The second connecting rod 803 is subjected to force and can drive the slider 801 to slide on the slide bar 8, and at the same time, the slider 801 can squeeze the springs 802 on both sides, and at the same time, the second connecting rod 803 can drive the push plate 804 to move;

[0026] A second driving motor 9 is installed on both sides of the bottom of the working chamber 1, and a toggle block 901 is installed on the output shaft end of the second driving motor 9. When the second driving motor 9 is started, it can drive the toggle block 901 to rotate, and the toggle block 901 can repeatedly push the second connecting rod 803 to move.

[0027] When the embodiment of the present application is in use: the powder to be ground can be poured into the interior of the working bin 1 through the feed port 2 at the top of the working bin 1, and at this time, the powder can be guided by the guide plate 201 in the feed port 2 to fall into the top of the grinding roller 3, so as to perform preliminary grinding. After the grinding, the powder can fall into the bottom of the working bin 1, and at this time, the first drive motor 5 can be started to drive the turntable 501 and the first connecting rod 502 to rotate, so that the pressure roller 6 on the first connecting rod 502 can perform secondary grinding on the powder. At the same time, through the screening of the filter plate 701 at the top of the discharge port 7, the powder after the grinding can be discharged through the discharge port 7, and the powder that has not been screened can stay on the top of the filter plate 701, and the vacuum pump 4 can be started to input the powder into the interior of the feed port 2 through the second transmission pipe 403 for further grinding.

[0028] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A mill with multi-stage grinding function, characterized in that , comprising a working chamber (1), a grinding roller (3), a pressing roller (6) and a discharge port (7), a vacuum pump (4) is installed on one side of the top end of the working chamber (1), a first transmission pipe (401) is fixedly connected to the bottom end of the vacuum pump (4), a control valve (402) is installed on one side of the first transmission pipe (401), a second transmission pipe (403) is fixedly connected to the top end of one side of the vacuum pump (4), and a first driving motor is installed in the middle position of one side of the working chamber (1). (5), a turntable (501) is installed at the output shaft end of the first driving motor (5), and first connecting rods (502) are connected to both sides of the turntable (501), and the turntable (501) and the first connecting rod (502) are fixedly connected, and a pressure roller (6) is connected to one side of the first connecting rod (502), and the first connecting rod (502) and the pressure roller (6) are rotatably connected, and a discharge port (7) is fixedly connected to the middle position of the bottom end of the working bin (1).

2. A mill with multi-stage grinding function according to claim 1, characterized in that: A control switch (101) is installed at the top end of one side of the outside of the working chamber (1), and a viewing window (102) is fixedly connected to the middle position of one side of the working chamber (1).

3. The mill with multi-stage grinding function according to claim 1, characterized in that: A feed port (2) is fixedly connected to the middle position of the top of the working bin (1), guide plates (201) are fixedly connected to the middle positions on both sides of the feed port (2), and a grinding roller (3) is installed at the bottom end of the feed port (2).

4. The mill with multi-stage grinding function according to claim 1, characterized in that: A filter plate (701) is fixedly connected to the top of the discharge port (7), and sliding rods (8) are fixedly connected to the inside of both sides of the bottom of the working bin (1).

5. A mill with multi-stage grinding function according to claim 4, characterized in that: The outside of the sliding rod (8) is slidably connected to a slider (801), both sides of the slider (801) are fixedly connected to springs (802), the bottom end of the slider (801) is fixedly connected to a second connecting rod (803), and one side of the second connecting rod (803) is fixedly connected to a push plate (804).

6. The mill with multi-stage grinding function according to claim 1, characterized in that: A second driving motor (9) is installed on both sides of the bottom end of the working chamber (1), and a toggle block (901) is installed on the output shaft end of the second driving motor (9).

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