Device for detecting linear pressure between drying cylinder and scraper

Abstract

The utility model discloses a device for detecting linear pressure between a drying cylinder and a scraper, and belongs to a pressure detection device. The device comprises a pressure sensor, a sensor fixing disc, a control rod, a control and display device and a power supply connecting device, the pressure sensor is installed on the sensor fixing disc, and the control rod is connected with the sensor fixing disc and used for controlling movement of the sensor fixing disc. The pressure sensor is electrically connected with the control and display device, and the control and display device is electrically connected with the power supply connecting device. The device can perform line pressure detection in a narrow space of 1.5-3cm, the pressure sensor is fixed on the control sensor fixing disc, and the diameter of the control sensor fixing disc is 5-8 times that of the pressure sensor, so that the local pressure bearing of the scraper is reduced, the influence of local deformation of the scraper on measurement and the deformation of a back knife during detection is avoided, and the detection accuracy is improved. And the pressure sensor is digitally displayed in combination with the control and display device, so that portable mobile measurement is realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to pressure detection device field, concretely relates to a device for detecting line pressure between drying cylinder and doctor. BACKGROUND

[0002] In the production process of paper, it is very important to make the paper web wrinkled, and the current widely used wrinkling method is to make the paper web on the surface of the drying cylinder collide with the doctor under high speed running state by the wrinkling doctor and the high speed rotating surface of the drying cylinder.

[0003] Therefore, the line pressure between the drying cylinder and the doctor is very important for judging whether the production is running normally, but there is no device for detecting the line pressure between the drying cylinder and the doctor in real time. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a device for detecting line pressure between drying cylinder and doctor which can detect in real time and is convenient to operate.

[0005] Technical scheme: the device for detecting line pressure between drying cylinder and doctor provided by the utility model comprises a pressure sensor, a sensor fixing disc, a control rod, a control and display device and a power connection device; the pressure sensor is installed on the sensor fixing disc, the control rod is connected with the sensor fixing disc and is used for controlling the movement of the sensor fixing disc; the pressure sensor is electrically connected with the control and display device, and the control and display device is electrically connected with the power connection device.

[0006] Further, the distance between the drying cylinder and the doctor is 1.5-3cm.

[0007] Further, the pressure sensor is fixed on the sensor fixing disc through a plurality of screw structures.

[0008] Further, the diameter of the sensor fixing disc is 5-8 times of the diameter of the pressure sensor.

[0009] Further, the control rod is connected around the sensor fixing disc through welding.

[0010] Further, the power connection device comprises a power supply and a plug.

[0011] Further, the electric connection adopts a wire.

[0012] Beneficial Effects: Compared with the prior art, this utility model has the following advantages: This utility model device can perform line pressure detection in narrow spaces of 1.5-3cm. By fixing the pressure sensor on the control sensor mounting plate, the diameter of the control sensor mounting plate is 5-8 times the diameter of the pressure sensor, thereby reducing the local pressure on the scraper and avoiding local deformation of the scraper during detection, which affects the measurement and the deformation of the back blade. Combined with the control and display device, the pressure sensor is digitally displayed, realizing portable mobile measurement. In summary, this utility model device can accurately detect the line pressure at different positions of the scraper and accurately determine the problem point of abnormal line pressure of the scraper, which has guiding significance for actual production. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the device for detecting the linear voltage between the drying cylinder and the scraper provided by this utility model;

[0014] Figure 2 This is a schematic diagram of the drying cylinder and scraper.

[0015] Figure 3 This is a schematic diagram of the device used to detect the linear voltage between the drying cylinder and the scraper. Detailed Implementation

[0016] The present invention will now be further described in conjunction with specific embodiments and accompanying drawings.

[0017] Example 1: As Figure 1 As shown, the device for detecting the line voltage between the drying cylinder and the scraper provided in this embodiment includes a pressure sensor 1, a sensor mounting plate 2, a control rod 3, a control and display device 4, and a power connection device. The pressure sensor 1 is mounted on the sensor mounting plate 2 by screws. The control rod 3 is welded around the sensor mounting plate 2 to control the movement of the sensor mounting plate 2. The diameter of the sensor mounting plate 2 is 5 times the diameter of the pressure sensor 1. The power connection device includes a power supply 5 and a plug 6. The pressure sensor 1 is connected to the control and display device 4 by a wire 7, and the control and display device 4 is connected to the power connection device by a wire 7.

[0018] like Figure 2 As shown, the structure of the drying cylinder and scraper includes: drying cylinder 11, scraper 12, scraper holder 13, movable joint 14, frame 15, cylinder 16 and air pressure control device 17. The distance between the drying cylinder 11 and the scraper 12 is 1.5-3cm. The scraper 12 is fixed in the scraper holder 13. The scraper holder 13 is connected to the cylinder 16 through the movable joint 14. The cylinder 16 is connected to the frame 15 through the movable joint 14. The cylinder 16 is connected to the air pressure control device 17.

[0019] like Figure 3The use process of the device for detecting the line pressure between the dryer and the doctor blade is shown as follows: the power connection device is turned on, the pressure sensor 1 is fixed on the sensor fixing disc 2 through the fixing screw, the doctor blade 12 is opened, the control rod 3 controls the sensor fixing disc 2 to move to the position between the dryer 11 and the doctor blade 12, the doctor blade 12 is closed, the pressure is adjusted, the detection data is displayed on the control and display device 4, the value is read, the data is recorded, and the doctor blade 12 is opened; the above steps are repeated to measure other position points.

Claims

1. A device for detecting the line pressure between a dryer cylinder and a doctor blade, characterized in that It comprises a pressure sensor, a sensor fixing disc, a control rod, a control and display device and a power connection device; the pressure sensor is installed on the sensor fixing disc, the control rod is connected with the sensor fixing disc and used for controlling the movement of the sensor fixing disc; the pressure sensor is electrically connected with the control and display device, and the control and display device is electrically connected with the power connection device.

2. The device for detecting the line pressure between the dryer and the doctor blade according to claim 1, characterized in that, The distance between the dryer and the scraper is 1.5-3 cm.

3. The device for detecting line pressure between a dryer and a doctor blade according to claim 1, characterized in that, The pressure sensor is fixed on the sensor fixing disc through a plurality of screw structures.

4. The device for detecting line pressure between a dryer and a doctor blade according to claim 1, characterized by, The diameter of the sensor fixing disc is 5-8 times of the diameter of the pressure sensor.

5. The device for detecting line pressure between a dryer and a doctor blade according to claim 1, characterized in that, The control rod is connected with the periphery of the sensor fixing disc through welding.

6. The device for detecting line pressure between a dryer and a doctor blade according to claim 1, characterized by, The power connection device comprises a power supply and a plug.

7. The device for detecting line pressure between a dryer and a doctor blade according to claim 1, characterized by, The electric connection adopts a wire.

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