Ultrasonic sensor mounting bracket

Abstract

The utility model relates to an ultrasonic sensor installation support which comprises a support body, the support body is fixed on the rear portion of a tobacco cutter and connected with a rotatable support head, an ultrasonic probe cleaning sleeve is installed on the rotatable support head, and the inclination angle between the ultrasonic probe cleaning sleeve and a tobacco cutter row chain can be adjusted by pulling the rotatable support head. According to the technical scheme, by installing the rotatable support head, the ultrasonic sensor can be rapidly adjusted to be right opposite to the bottom of the tobacco cutter row chain, and the problem that the material level of the tobacco cutter is out of control due to angle errors is solved; the rotatable support head is convenient and fast to adjust, the angle can be rapidly adjusted when an operator finds out that the material level is out of control due to the fact that the angle of the ultrasonic sensor is incorrect in the production process, and sheet running or production interruption of the tobacco cutter is prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of tobacco processing auxiliary machinery, and in particular relates to an ultrasonic sensor mounting bracket. Background Art

[0002] The tobacco cutter is the core equipment of the tobacco production line and plays a vital role in the quality of the tobacco production line. The horizontal feeding system of the cutter uses an ultrasonic sensor to detect the material level. The sensor is installed on the bracket at the rear of the cutter.

[0003] In the actual production process, the operators found that the detection surface of the ultrasonic sensor should face the bottom of the material discharge, because the angle of the ultrasonic beam output by the ultrasonic sensor is only 50°. Once it is not aligned, measurement errors will occur, affecting the material level control. The existing mounting bracket is too cumbersome to adjust, affecting efficiency. At the same time, because the belt conveyor is used to feed the material to the shredder, there is a certain height difference when the material is dropped. During the drop process, tobacco dust and broken tobacco pieces often adhere to the detection surface of the ultrasonic sensor due to the impact of the airflow, causing the ultrasonic sensor to detect errors and affecting the material level control of the shredder. Once the material level control of the shredder is affected, it will cause quality accidents such as severely narrow leaf width, leaf adhesion, and sheet running, affecting the process indicators of shredding production and the product quality of rolled cigarettes. Utility Model Content

[0004] The utility model aims to provide an ultrasonic sensor mounting bracket, which can quickly adjust the angle of the ultrasonic probe and effectively clean the detection surface of the ultrasonic probe, so as to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above objectives, this application is implemented through the following technical solutions:

[0006] An ultrasonic sensor mounting bracket comprises a bracket, wherein the bracket is fixed at the rear of a wire cutter, the bracket is connected to a rotatable bracket head, an ultrasonic probe cleaning sleeve is mounted on the rotatable bracket head, and the inclination angle between the ultrasonic probe cleaning sleeve and the wire cutter chain can be adjusted by pulling the rotatable bracket head.

[0007] Furthermore, the bracket includes a support rod, a base, a connecting part and a cross bar; the lower end of the support rod is fixed to the base, the connecting part is installed on the support rod, the cross bar is connected to the support rod through the connecting part, and the rotatable bracket head is installed at one end of the cross bar away from the support rod.

[0008] Furthermore, a locking screw is provided on the rotatable bracket head for locking the rotatable bracket head.

[0009] Furthermore, the ultrasonic probe cleaning sleeve is in a hollow cylindrical shape, the ultrasonic sensor is arranged in the ultrasonic probe cleaning sleeve, a compressed air spray hole is arranged in the ultrasonic probe cleaning sleeve, and the compressed air spray hole is connected to the air source through a pipeline.

[0010] Furthermore, a solenoid valve is provided on the pipeline, and the solenoid valve is connected to the PLC controller via an electrical signal.

[0011] Furthermore, the rotatable bracket head includes a bracket head body, a through mounting hole is provided on the bracket head body, an opening connected to the mounting hole is provided on the upper end surface of the bracket head body, a locking screw hole is provided on the bracket head body opposite to the opening, and a locking screw is provided in the locking screw hole.

[0012] Furthermore, the rotatable support head includes a fixing member, and two fixing members are arranged along the axial direction of the rotatable support head.

[0013] The beneficial effects of the utility model are:

[0014] By installing a rotatable bracket head, the ultrasonic sensor can be quickly adjusted to face the bottom of the wire cutter chain, preventing the wire cutter from losing control of the material level due to angle error. The rotatable bracket head is easy and quick to adjust, ensuring that when the operator finds that the material level is out of control due to the incorrect angle of the ultrasonic sensor during production, the angle can be quickly adjusted to prevent the wire cutter from running or production interruption.

[0015] By installing the ultrasonic probe cleaning sleeve, on the one hand, a protective structure is provided for the ultrasonic sensor to prevent the ultrasonic sensor from being damaged due to accidental contact; on the other hand, a compressed air cleaning mechanism is provided for the ultrasonic sensor to promptly remove tobacco dust, broken cigarette pieces and other debris adhered to the detection surface of the sensor probe through compressed air blowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 This is a schematic diagram of the cooperation between the rotatable bracket head and the ultrasonic probe cleaning sleeve.

[0018] Figure 3 It is a schematic diagram of the principle of the utility model.

[0019] Description of reference numerals:

[0020] 1. Support rod; 2. Rotatable bracket head; 3. Ultrasonic probe cleaning sleeve; 4. Ultrasonic probe; 5. Base; 6. Cross bar; 21. Locking screw; 22. Fixing piece; 31. Compressed air spray hole. DETAILED DESCRIPTION

[0021] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings. The following embodiments are merely exemplary and can only be used to explain and illustrate the technical solution of the present invention, but cannot be construed as limiting the technical solution of the present invention.

[0022] See also Figures 1 to 3 The present application provides an ultrasonic sensor mounting bracket, including a bracket, which is fixed to the rear of a wire cutter to support the entire device.

[0023] The bracket of the present application includes a support rod 1, a base 5, a connecting part and a cross bar 6; the lower end of the support rod 1 is fixed on the base 5, the connecting part is installed on the support rod 1, the cross bar 6 is connected to the support rod through the connecting part, and the rotatable bracket head 2 is installed on the end of the cross bar 6 away from the support rod 1.

[0024] The bracket is connected to the rotatable bracket head, and an ultrasonic probe cleaning sleeve 3 is installed on the rotatable bracket head 2. By pulling the rotatable bracket head 2, the inclination angle between the ultrasonic probe cleaning sleeve 3 and the wire cutter chain can be adjusted, and the ultrasonic sensor probe is adjusted to face the bottom of the chain as needed. In addition, a locking screw 21 is provided on the rotatable bracket head 2. By adjusting the tightness of the locking screw 21, the strength of pulling the rotatable bracket head by hand can be adjusted or the rotatable bracket head can be directly locked so that it cannot rotate.

[0025] The rotatable support head of the present application includes a support head body, a through mounting hole is provided on the support head body, an opening connected to the mounting hole is provided on the upper end surface of the support head body, a locking screw hole is provided on the support head body opposite to the opening, and a locking screw is provided in the locking screw hole. The rotatable support head includes a fixing part, two of which are provided along the axial direction of the rotating support head, and are used to fix the ultrasonic probe cleaning sleeve.

[0026] The ultrasonic probe cleaning sleeve is a hollow cylindrical shape, and the ultrasonic sensor is arranged in the ultrasonic probe cleaning sleeve. A compressed air spray hole 31 is arranged in the ultrasonic probe cleaning sleeve, and the compressed air spray hole is connected to the air source through a pipeline. A solenoid valve is arranged on the pipeline, and the solenoid valve is electrically connected to the PLC controller. After the compressed air is introduced, the ultrasonic sensor probe can be sprayed to effectively clean the tobacco dust, broken cigarette pieces and other debris adhered to the detection surface of the ultrasonic sensor probe. The compressed air can be selected to be sprayed all the time or to execute the timed spray mode through the timing function of the PLC according to the actual production situation. This timing function is a conventional technology and does not involve improvement. The technicians in this field can realize it by simple settings according to the needs.

[0027] Before using the device for the first time, the ultrasonic sensor probe must be adjusted to face the bottom of the chain by adjusting the rotatable bracket head according to the actual installation position. After the adjustment is completed, in order to prevent the ultrasonic sensor from changing its position due to accidental contact during equipment maintenance and affecting the material level control, the locking screw of the rotatable bracket head can be tightened so that it can no longer rotate; the tightening degree of the locking screw can also be adjusted according to actual needs.

[0028] The ultrasonic sensor is installed in the cleaning sleeve. The compressed air is blown to keep the ultrasonic sensor probe detection surface clean to prevent detection errors caused by the adhesion of tobacco dust and broken cigarette pieces. At the same time, the cleaning sleeve can also provide protection for the ultrasonic sensor to prevent it from being damaged by accidental contact. The compressed air can be blown continuously or at a fixed time by installing a solenoid valve and using the timing function of the PLC.

[0029] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. An ultrasonic sensor mounting bracket, It is characterized in that It includes a bracket, which is fixed at the rear of the wire cutter and connected to a rotatable bracket head. An ultrasonic probe cleaning sleeve is installed on the rotatable bracket head. By pulling the rotatable bracket head, the inclination angle between the ultrasonic probe cleaning sleeve and the wire cutter chain can be adjusted.

2. The ultrasonic sensor mounting bracket according to claim 1, It is characterized in that The bracket includes a support rod, a base, a connecting part and a cross bar; the lower end of the support rod is fixed to the base, the connecting part is installed on the support rod, the cross bar is connected to the support rod through the connecting part, and the rotatable bracket head is installed at one end of the cross bar away from the support rod.

3. The ultrasonic sensor mounting bracket according to claim 1, It is characterized in that A locking screw is arranged on the rotatable bracket head for locking the rotatable bracket head.

4. The ultrasonic sensor mounting bracket according to claim 1, It is characterized in that The ultrasonic probe cleaning sleeve is in a hollow cylindrical shape, the ultrasonic sensor is arranged in the ultrasonic probe cleaning sleeve, a compressed air spray hole is arranged in the ultrasonic probe cleaning sleeve, and the compressed air spray hole is connected to an air source through a pipeline.

5. The ultrasonic sensor mounting bracket according to claim 4, It is characterized in that A solenoid valve is arranged on the pipeline, and the solenoid valve is connected with the PLC controller by electrical signal.

6. The ultrasonic sensor mounting bracket according to claim 3, It is characterized in that The rotatable bracket head includes a bracket head body, a through mounting hole is arranged on the bracket head body, an opening connected with the mounting hole is arranged on the upper end surface of the bracket head body, a locking screw hole is arranged on the bracket head body opposite to the opening, and a locking screw is arranged in the locking screw hole.

7. The ultrasonic sensor mounting bracket according to claim 6, It is characterized in that The rotatable support head comprises a fixing member, and two fixing members are arranged along the axial direction of the rotatable support head.

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