Sintered neodymium-iron-boron magnetic powder forming early warning device with multi-point temperature measurement function

Abstract

The utility model relates to the technical field of sintered neodymium-iron-boron magnetic powder forming, in particular to a sintered neodymium-iron-boron magnetic powder forming early warning device with a multi-point temperature measurement function. The powder weighing device comprises a material barrel, a reducer pipe and a powder weighing box which are sequentially connected from top to bottom, the reducer pipe is connected with the powder weighing box through a butterfly valve connecting pipe, and a temperature detection assembly comprises an annular special fixing seat connected to the outer wall of the butterfly valve connecting pipe and a plurality of temperature sensors fixed to the annular special fixing seat; according to the utility model, the temperature change at the joint of the reducer pipe and the powder weighing box is accurately detected through a plurality of detection points, the monitoring dead angle is reduced, the abnormal alarm feedback time is prolonged, the powder heated due to oxidation is more effectively prevented from continuously flowing into the press, and batch impurity products are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sintered NdFeB magnetic powder molding, in particular to a sintered NdFeB magnetic powder molding early warning device with multi-point temperature measurement. Background Art

[0002] NdFeB powder contains a large amount of rare earth metals, which are highly chemically active and easily oxidize or spontaneously combust in the air, releasing a large amount of heat. The manufacturing process of NdFeB is complex and involves many steps. The NdFeB powder contains a large amount of rare earth elements during molding, which are highly active and easily oxidize or spontaneously combust in the air, releasing a large amount of heat.

[0003] At present, in the workshop production process, when the barrel and the press are connected, it is inevitable that there will be docking errors and leakage and oxidation, causing the oxidized material to flow into the next process, seriously affecting the product quality. At present, the connection between the barrel and the press cannot be detected and monitored in real time, which may cause leakage and oxidation, affecting the product quality. Summary of the Invention

[0004] In order to overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device, which accurately detects the temperature changes at the junction of the reducer and the powder weighing box through multiple detection points, reduces the monitoring blind spot, extends the abnormal alarm feedback time, and more effectively prevents the powder heated by oxidation from continuously flowing into the press, thereby avoiding the appearance of batch impurity products.

[0005] The technical solution of the utility model to solve the technical problem is:

[0006] A multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device, which includes a material barrel, a reducer and a powder weighing box connected in sequence from top to bottom, the reducer is connected to the powder weighing box through a butterfly valve connecting pipe, a butterfly valve is installed on the butterfly valve connecting pipe, the temperature detection mechanism includes an electrically connected temperature detection component and a temperature display component, the temperature detection component is connected to the connection between the reducer and the butterfly valve connecting pipe, the temperature detection component includes an annular special fixing seat connected to the outer wall of the butterfly valve connecting pipe and a plurality of temperature sensors fixed on the annular special fixing seat.

[0007] As an improvement of the present invention, the temperature sensor is fixedly connected to the annular dedicated fixing seat by an adjusting screw.

[0008] As a further improvement of the present invention, the four temperature sensors are evenly distributed and fixedly connected to the annular dedicated fixing seat.

[0009] As a further improvement of the present invention, the temperature display assembly includes a controller and a display screen electrically connected to the controller for displaying temperature.

[0010] As a further improvement of the present invention, the temperature detection mechanism also includes an alarm, and the temperature display component and the alarm are both installed on the electrical cabinet.

[0011] As a further improvement of the present invention, the material barrel is connected to the reducing pipe through a material barrel connecting pipe.

[0012] As a further improvement of the present invention, a first vibrator is installed on the outer wall of the barrel connecting pipe.

[0013] As a further improvement of the present invention, a second vibrator is installed on the butterfly valve connecting pipe.

[0014] As a further improvement of the present invention, the temperature detection component is connected to a position 5 mm to 10 mm downward from the connection between the reducer and the butterfly valve connecting pipe.

[0015] The utility model includes a material barrel, a reducing pipe and a powder weighing box which are connected in sequence from top to bottom. The reducing pipe is connected to the powder weighing box through a butterfly valve connecting pipe. The temperature detection component includes an annular special fixing seat connected to the outer wall of the butterfly valve connecting pipe and a plurality of temperature sensors fixed on the annular special fixing seat. In the utility model, multiple detection points are used to accurately detect the temperature changes at the joint between the reducing pipe and the powder weighing box, thereby reducing the monitoring blind spot, extending the abnormal alarm feedback time, and more effectively preventing the powder heated by oxidation from continuously flowing into the press, thereby avoiding the appearance of batch impurity products. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] For ease of explanation, the present invention is described in detail with reference to the following preferred embodiments and accompanying drawings.

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a schematic structural diagram of the temperature detection assembly of the present invention;

[0019] Figure numerals: 1-barrel, 11-barrel connecting pipe, 12-first vibrator, 2-reducing pipe, 3-powder weighing box, 4-butterfly valve connecting pipe, 41-second vibrator, 5-temperature detection assembly, 51-annular special fixing seat, 52-temperature sensor, 6-display screen, 7-alarm, 8-electrical cabinet. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] like Figure 1 and Figure 2 As shown, the utility model is a multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device, which includes a material barrel 1, a reducer 2 and a powder weighing box 3 connected in sequence from top to bottom. The reducer 2 is connected to the powder weighing box 3 through a butterfly valve connecting pipe 4, and a butterfly valve is installed on the butterfly valve connecting pipe 4.

[0022] In the present invention, the temperature detection mechanism includes an electrically connected temperature detection component and a temperature display component, wherein the temperature detection component 5 is connected at the connection between the reducer 2 and the butterfly valve connecting pipe 4. Furthermore, the temperature detection component 5 is connected at a position 10 mm downward from the connection between the reducer 2 and the butterfly valve connecting pipe 4. This position can better and accurately detect the temperature changes at the connection between the reducer 2 and the powder weighing box 3 in real time.

[0023] In the present invention, the temperature detection assembly includes an annular special fixing seat 51 connected to the outer wall of the butterfly valve connecting pipe 4 and a plurality of temperature sensors 52 fixed on the annular special fixing seat 51; further, four temperature sensors 52 are evenly distributed and fixedly connected to the annular special fixing seat 51, and the four temperature sensors 52 are fixedly connected to the annular special fixing seat 51 by adjusting screws. The four temperature sensors 52 are aligned with the joint between the reducer 2 and the powder box 3 to detect temperature changes in real time, thereby reducing detection blind spots, extending the abnormal alarm feedback time, and increasing the time for subsequent emergency treatment in advance. In addition, the temperature sensor of each single point temperature measurement The upper and lower limits of the temperature alarm can be set for each sensor 52, and the corresponding multiple temperatures are displayed on the display screen. The temperature of each detection area is displayed in real time, which is clear at a glance. Specifically, the temperature of the temperature sensor 52 and the ambient temperature are automatically corrected to prevent false alarms caused by climate change, such as a rise or drop in ambient temperature. The corresponding multiple temperatures can be displayed simultaneously, and multiple temperature displays can be compared. Under normal circumstances, the temperature difference between the temperature values ​​monitored in each interval is within 1 degree. If a single displayed temperature value differs from the temperature values ​​of several other points by more than 1 degree, it can be regarded as an abnormality and can be dealt with in a timely manner. For example: the temperature sensors 52 are numbered 1, 2, 3, 4...,

[0024] No. 1 is 25.6°, No. 2 is 25.8°, No. 3 is 25.4°...It is normal if the error does not exceed 1 degree. If No. 1 is 25.8°, No. 2 is 26.9°, and No. 3 is 25.6°, it means that there is a problem in the No. 2 monitoring area that needs to be dealt with in time.

[0025] In the present invention, multiple detection points are used to accurately detect the temperature changes at the junction of the reducer 2 and the powder weighing box 3, reducing the monitoring blind spot, extending the abnormal alarm feedback time, and more effectively preventing the powder heated by oxidation from continuously flowing into the press, avoiding the appearance of batch impurity products.

[0026] In the present invention, the temperature display component includes a controller and a display screen 6 electrically connected to the controller for displaying the temperature. The temperature detection mechanism 5 also includes an alarm 7. The temperature display component and the alarm 7 are both installed on an electrical cabinet 8. The electrical cabinet 8 is connected to a power supply. The temperature sensor 52 is electrically connected to the controller. When the temperature sensor 52 exceeds the set upper limit temperature, the controller will control the alarm 7 to alarm, and the display screen 6 will simultaneously display the temperatures detected by each temperature sensor 52 for easy observation. The staff can also judge whether the temperature at the reducer 2 is too high by observing the temperature value on the display screen 6. When the temperature is too high, the staff will stop production in time and repair the problem, thereby preventing the powder heated by oxidation from continuing to flow into the press and avoiding the appearance of batch impurity products. In addition, when the temperature is too high, the alarm 7 will send an alarm signal, thereby stopping production in time.

[0027] In the present invention, the material barrel 1 is connected to the reducing pipe 2 through the material barrel connecting pipe 11. A first vibrator 12 is installed on the outer wall of the material barrel connecting pipe 11 to facilitate vibration discharge.

[0028] In the present invention, a second vibrator 41 is installed on the butterfly valve connecting pipe 4 to facilitate the NdFeB powder to flow more smoothly to the powder weighing box 3 .

[0029] In the present utility model, an embodiment is provided, which includes a material barrel 1, a reducer 2 and a powder weighing box 3 connected in sequence from top to bottom, the reducer 2 is connected to the powder weighing box 3 through a butterfly valve connecting pipe 4, a butterfly valve is installed on the butterfly valve connecting pipe 4, the material barrel 1 is connected to the reducer 2 through a material barrel connecting pipe 11, a first vibrator 12 is installed on the outer wall of the material barrel connecting pipe 11, a second vibrator 41 is installed on the butterfly valve connecting pipe 4, a temperature detection component includes an annular special fixing seat 51 connected to the outer wall of the butterfly valve connecting pipe 4 and four temperature sensors 52 and an alarm 7 fixed on the annular special fixing seat 51, and a temperature display component includes a controller and a controller circuit A display screen 6 for displaying temperature is electrically connected, and the controller, display screen 6, and alarm 7 are installed on an electric cabinet 8. The electric cabinet 8 is connected to a power source, and the temperature sensor 52 is electrically connected to the controller. The display screen 6 will simultaneously display the temperatures detected by each temperature sensor 52 for easy observation. The staff can also judge whether the temperature at the reducer 2 is too high by observing the temperature value on the display screen 6. When the temperature is too high, the staff will stop production in time and repair the problem, thereby preventing the powder heated by oxidation from continuously flowing into the press and avoiding the appearance of batch impurity products. In addition, when the temperature is too high, the alarm 7 will send an alarm signal, thereby stopping production in time.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device, characterized in that: It includes a material barrel, a reducing pipe and a powder weighing box connected in sequence from top to bottom, the reducing pipe is connected to the powder weighing box through a butterfly valve connecting pipe, a butterfly valve is installed on the butterfly valve connecting pipe, the temperature detection mechanism includes an electrically connected temperature detection component and a temperature display component, the temperature detection component is connected at the connection between the reducing pipe and the butterfly valve connecting pipe, the temperature detection component includes an annular special fixing seat connected to the outer wall of the butterfly valve connecting pipe and several temperature sensors fixed on the annular special fixing seat.

2. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 1, characterized in that: The temperature sensor is fixedly connected to the annular special fixing seat through an adjusting screw.

3. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 2, characterized in that: The four temperature sensors are evenly distributed and fixedly connected to the annular dedicated fixing seat.

4. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 1, characterized in that: The temperature display assembly includes a controller and a display screen electrically connected to the controller for displaying temperature.

5. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 4, characterized in that: The temperature detection mechanism also includes an alarm, and the temperature display component and the alarm are both installed on the electric cabinet.

6. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 1, characterized in that: The material barrel is connected to the reducing pipe through a material barrel connecting pipe.

7. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 6, characterized in that: A first vibrator is installed on the outer wall of the barrel connecting pipe.

8. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 7, characterized in that: A second vibrator is installed on the butterfly valve connecting pipe.

9. The multi-point temperature measurement sintered NdFeB magnetic powder forming early warning device according to claim 1, characterized in that: The temperature detection assembly is connected to a position 5 mm to 10 mm downward from the connection between the reducer and the butterfly valve connecting pipe.

Images