Pull mill based on mechanical signals

Abstract

The utility model discloses a pestle mill based on mechanical signals. The pestle mill comprises a cover plate, a grinding pestle, a mechanical signal device, a movable bracket and a regulating valve, a threaded hole is formed in the cover plate, and a valve rod of the adjusting valve can spirally ascend and descend up and down in the threaded hole; the lower end of a valve rod of the adjusting valve is connected with a movable support, and a mechanical signal device is arranged in the movable support. The upper end of the grinding pestle extends into the movable support to be connected with the movable support, and the upper end of the grinding pestle is located below the mechanical signal device. According to the pestle mill based on the mechanical signals, particles with specified particle sizes can be ground through mutual cooperation of the grinding pestle, the mechanical signal device and the adjusting valve.

Description

Technical Field

[0001] The utility model belongs to the field of grinding equipment, in particular to a pestle grinder based on mechanical signals. Background Art

[0002] Pestle mill is a commonly used grinding equipment for grinding powders. However, it is difficult to control the particle size of powder particles when grinding powders with existing pestle mills, which makes it difficult to easily obtain powder particles that meet the particle size requirements. In addition, most existing pestle mills are manually operated, and dust pollution is relatively serious, which is not conducive to the health of operators. Utility Model Content

[0003] The utility model aims to provide a pestle mill based on mechanical signals, which can grind particles with a specified particle size through the cooperation of a grinding pestle, a mechanical signal device and a regulating valve.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is to design a pestle grinder based on mechanical signals, including a cover plate, a grinding pestle, a mechanical signal device, a movable bracket and a regulating valve; a threaded hole is opened on the cover plate, and the valve stem of the regulating valve can be spirally lifted and lowered in this threaded hole; the lower end of the valve stem of the regulating valve is connected to the movable bracket, and a mechanical signal device is arranged in the movable bracket; the upper end of the grinding pestle extends to the inside of the movable bracket and is connected to the movable bracket, and the upper end of the grinding pestle is located below the mechanical signal device.

[0005] Furthermore, the mechanical signal device uses one or more force sensors or torque sensors as signal devices.

[0006] Furthermore, the force sensor or torque sensor is one or more of a strain gauge sensor, a piezoelectric sensor, a volumetric sensor, and a dynamic pressure sensor.

[0007] Furthermore, the cover plate is provided with a material injection port, which is a through hole, and a detachable hole cover is provided at the upper end of the outside.

[0008] The advantages and beneficial effects of the utility model are as follows: the pestle grinder based on mechanical signals of the utility model can grind particles of a specified particle size through the cooperation of the grinding pestle, the mechanical signal device and the regulating valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a structural schematic diagram of the utility model.

[0010] Among them, there are a material injection port 1, a cover plate 2, a grinding pestle 3, a mechanical signal device 4, a movable bracket 5, and a regulating valve 6. DETAILED DESCRIPTION

[0011] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention. Example

[0012] The pestle grinder based on mechanical signals comprises a material injection port 1, a cover plate 2, a grinding pestle 3, a mechanical signal device 4, a movable bracket 5, and a regulating valve 6.

[0013] A threaded hole is provided on the cover plate 2, and the valve stem of the regulating valve 6 can be spirally lifted and lowered in the threaded hole. The lower end of the valve stem of the regulating valve 6 is connected to the movable bracket 5, and a mechanical signal device 4 is arranged in the movable bracket 5; the upper end of the grinding pestle 3 extends to the inside of the movable bracket 5 and is connected to the movable bracket 5, and the upper end of the grinding pestle 3 is located below the mechanical signal device 4.

[0014] A material injection port 1 is provided on the cover plate 2. The material injection port 1 is a through hole, and a detachable hole cover is provided at the upper end of the outside.

[0015] The pestle mill based on mechanical signals needs to be used together with a rotatable grinding pot. The cover plate 2 is placed on the pot mouth of the grinding pot, and the grinding pestle 3 is inserted into the grinding pot. Powder is injected into the grinding pot through the injection port 1, the injection port 1 is closed, and the power is turned on to make the grinding pot rotate. At this time, the grinding pestle 3 grinds the powder. At the same time, the upper end of the grinding pestle 3 generates stress on the mechanical signal device 4, and the signal generated by the mechanical signal device 4 at this time is used as the calibration value X.

[0016] If the powder needs to be finally ground into a certain fixed particle size, first, the signal corresponding to the particle size is known to be Y, and the linear relationship formula between the unit angle of rotation of the regulating valve 6 and the unit signal value change is known, and then by calculating the difference between the calibration values ​​X and Y and substituting it into the above linear relationship formula, it is calculated how much the regulating valve 6 needs to be rotated in the process of the calibration value X becoming the signal Y (assuming the rotation angle is Z). At this time, as long as the regulating valve 6 is manually rotated by Z angle, the grinding pestle 3 can grind powder particles of the desired particle size.

[0017] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A pestle grinder based on mechanical signals, characterized in that: It includes a cover plate, a grinding pestle, a mechanical signal device, a movable bracket and a regulating valve; the cover plate is provided with a threaded hole, and the valve stem of the regulating valve can be spirally lifted and lowered in the threaded hole; the lower end of the valve stem of the regulating valve is connected to the movable bracket, and the mechanical signal device is arranged in the movable bracket; the upper end of the grinding pestle extends to the inside of the movable bracket and is connected to the movable bracket, and the upper end of the grinding pestle is located below the mechanical signal device.

2. The pestle-grinding machine based on mechanical signals according to claim 1, characterized in that: The mechanical signal device uses one or more force sensors or torque sensors as signal devices.

3. The pestle-grinding machine based on mechanical signals according to claim 2, characterized in that: The force sensor or torque sensor is one or more of a strain gauge sensor, a piezoelectric sensor, a volumetric sensor, and a dynamic pressure sensor.

4. The pestle-grinding machine based on mechanical signals according to claim 3, characterized in that: The cover plate is provided with a material injection port, which is a through hole, and a detachable hole cover is provided at the outer upper end.

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