Scanning rack dust removal device and method

Abstract

The present invention discloses a scanning frame dust removal device and method, the scanning frame dust removal device comprises a scanning frame, a scanning head box, a stepper motor, a connecting arm, a fixed disk, and a cleaning brush; the scanning head box is installed on the scanning frame and can reciprocate along the scanning frame, the fixed disk is fixed on the inner wall end surface of the scanning frame; the connecting arm is installed on the fixed disk through a first bolt group, and the first bolt group can be loosened to adjust the inclination angle of the connecting arm; the stepper motor is installed on the stepper motor bracket, and the stepper motor bracket is connected to the connecting arm through a third bolt group; the output shaft of the stepper motor is connected to the cleaning brush. The scanning frame dust removal device provided by the present invention fixes the connecting arm structure at one end of the scanning frame, and the scanning frame head box can continuously clean the dust on the surface of the sensor platform twice each time it reciprocates, and adjusts the forward and reverse rotation of the stepper motor according to the feedback of the induction probe to drive the forward and reverse rotation of the cleaning brush.

Description

Technical Field

[0001] The invention belongs to the field of a scanning frame for measuring quality parameters of a toilet paper machine, and in particular relates to a dust removal device and method for the scanning frame. Background Art

[0002] The measurement of toilet paper quality parameters is one of the necessary links to improve the quality and output of finished paper. The scanning frame used for quality monitoring is usually an O-type scanning frame or a C-type scanning frame, which is usually composed of an upper and lower bracket of a fixed scanning head box and a scanning head box (sensor platform). The scanning head box scans the paper web back and forth when it moves. In this process, the scanning head box can scan at an angle according to the actual situation. After rapid scanning and data acquisition, the obtained parameters are sent to the operator station in time, and the operator adjusts the parameters of the dry and wet parts of the paper machine according to the measured parameters. The sensor platform is usually equipped with quantitative sensors, moisture sensors, ash sensors, etc. Since a large amount of dust will be generated during the production of toilet paper, if the dust is not cleaned in time, it will seriously affect the measurement accuracy. At present, papermaking enterprises mostly use compressed air to blow dust, but the dust removal effect is limited and will affect the measurement accuracy of the sensor. Summary of the invention

[0003] The purpose of the present invention is to provide a scanning frame dust removal device and method fixed to one end of the scanning frame head box moving track. Each time the scanning frame head box reciprocates, the dust removal device can continuously remove dust on the surface of the sensor platform twice. The scanning frame dust removal device has a simple structure and can automatically clean dust. When the scanning head is tilted, the dust removal structure can also be tilted, and the dust removal effect is good.

[0004] To achieve the above purpose, the technical solution adopted by the present invention is:

[0005] A scanning frame dust removal device comprises a scanning frame, a scanning head box, a stepping motor, a connecting arm, a fixing plate and a cleaning brush;

[0006] The scanning head box is installed on the scanning frame and can reciprocate along the scanning frame, and the fixing plate is fixed on the inner side wall end surface of the scanning frame; the connecting arm is installed on the fixing plate through a first bolt group, and the first bolt group can be loosened to adjust the inclination angle of the connecting arm;

[0007] The stepper motor is mounted on a stepper motor bracket, and the stepper motor bracket is connected to the connecting arm through a third bolt group; the output shaft of the stepper motor is connected to the cleaning brush.

[0008] Furthermore, the connecting arm is U-shaped, a mounting hole is provided at the bottom of the U-shape, and a first bolt group passes through the mounting hole to fix the connecting arm to the fixing plate.

[0009] Furthermore, the stepper motor is installed on a U-shaped end of the connecting arm through a stepper motor bracket, and the output shaft of the stepper motor is connected to the cleaning brush shaft through a coupling.

[0010] Furthermore, a rolling bearing is installed at the other U-shaped end of the connecting arm rod; one end of the cleaning brush is connected to the coupling, and the other end is connected to the rolling bearing.

[0011] Furthermore, a sensing probe bracket is installed on the U-shaped end of the connecting arm, and the sensing probe is installed on the sensing probe bracket 10; the sensing probe is communicatively connected to a PLC controller, and a signal output end of the PLC controller is connected to a stepping motor.

[0012] Furthermore, the sensing probe bracket 10 is fixed to the connecting arm by a second bolt group.

[0013] Furthermore, the scanning head box includes an upper head box of the scanning frame and a lower head box of the scanning frame. The upper head box of the scanning frame is installed on the top surface slide rail inside the scanning frame, and the lower head box of the scanning frame is installed on the bottom surface slide rail inside the scanning frame.

[0014] Furthermore, the scanning frame is an O-shaped scanning frame or a C-shaped scanning frame.

[0015] Furthermore, a compressed air pipe is installed at the U-shaped end of the connecting arm, and the compressed air pipe passes through a hole opened on the stepper motor bracket and faces the cleaning brush; a solenoid valve is also arranged on the compressed air pipe, and the solenoid valve is communicatively connected with the PLC controller.

[0016] Another aspect of the present invention further provides a scanning frame dust removal method, comprising the following steps:

[0017] The scanning head box reciprocates along the paper surface on the slide rail of the scanning frame. When the scanning head box is close to the starting end of the scanning frame, the sensing probe senses the scanning head box and transmits the sensing signal to the PLC controller. The PLC controller issues an instruction to control the stepper motor to rotate, driving the cleaning brush to rotate in the same direction to clean the scanning head box. During a cleaning process, the scanning head box is always moving toward the starting end of the scanning frame. When the scanning head box reaches the starting end, the sensing probe cannot sense the scanning head box. At this time, the PLC controller controls the stepper motor to stop rotating. When the scanning head box moves in the direction away from the starting end, the sensing probe senses the scanning head box, and the PLC controller controls the stepper motor to reverse and drive the cleaning brush to clean in the opposite direction.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The scanning frame dust removal device provided by the present invention has a simple structure, convenient adjustment, easy replacement of the cleaning brush, a simple cleaning process, and a good cleaning effect. The connecting arm structure is fixed to one end of the scanning frame, and the scanning frame head box can continuously clean the dust on the surface of the sensor platform twice each time it reciprocates, and adjusts the forward and reverse rotation of the stepper motor according to the feedback of the sensing probe, thereby driving the forward and reverse rotation of the cleaning brush.

[0020] 2. The scanning frame dust removal device provided by the present invention can drive the cleaning brush to clean when the scanning head is in a horizontal state through a motor, and when the scanning head is tilted, the cleaning brush can always be kept horizontal with the sensor platform by adjusting the angle of the connecting piece of the rotating disk. The upper and lower platforms are in contact with the cleaning brush for cleaning, and a compressed air pipe is arranged next to the cleaning brush to blow dust off the cleaning brush regularly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0022] Figure 1 It is a schematic diagram of the overall structure of the scanning frame dust removal device of the present invention;

[0023] Figure 2 It is a partial schematic diagram of the scanning frame dust removal device of the present invention;

[0024] Figure 3 A schematic diagram of a dust sweeping mechanism of a scanning frame dust removal device of the present invention;

[0025] Figure 4 A schematic diagram of a control method of a scanning rack dust removal device according to the present invention;

[0026] Among them, 1-scanning frame; 2-scanning frame upper head box; 3-scanning frame lower head box; 4-stepping motor; 5-stepping motor bracket; 6-connecting arm; 7-fixed plate; 8-first bolt group; 9-sensing probe; 10-sensing probe bracket; 11-second bolt group; 12-coupling; 13-cleaning brush; 14-third bolt group; 15-compressed air pipe; 16-rolling bearing. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments. It should be noted that the embodiments and features in the embodiments of the present application can be combined with each other without conflict.

[0028] The following detailed description is an exemplary description, which is intended to provide further detailed description of the present invention. Unless otherwise specified, all technical terms used in the present invention have the same meaning as those generally understood by those skilled in the art to which the present application belongs. The terms used in the present invention are only for describing specific embodiments, and are not intended to limit exemplary embodiments according to the present invention.

[0029] like Figures 1 to 3 As shown, an embodiment of the present invention provides a scanning frame dust removal device, including an O-shaped or C-shaped scanning frame 1, a scanning head box, a stepper motor 4, a connecting arm 6, a fixed plate 7, and a cleaning brush 13; the scanning head box is installed on the scanning frame 1, can reciprocate along the scanning frame 1 and tilt at a certain angle, and can work horizontally or tilted; the fixed plate 7 is fixed on the inner side wall end face of the scanning frame 1, facing the middle position of the scanning head box; the connecting arm 6 is installed on the fixed plate 7 through a first bolt group 8, and the first bolt group 8 can be loosened to adjust the tilt angle of the connecting arm 6; the connecting arm 6 is made of a steel plate with high hardness and good toughness.

[0030] The stepper motor 4 is installed on the stepper motor bracket 5, and the stepper motor bracket 5 is connected to the connecting arm 6 through the third bolt group 14; the output shaft of the stepper motor 4 is connected to the cleaning brush 13, and the cleaning bristle body of the cleaning brush 13 is located between the two sensor platforms and is always parallel to the surface of the sensor platform.

[0031] In the preferred embodiment of the present invention, the connecting arm 6 is U-shaped, and a mounting hole is provided at the bottom of the U-shaped connecting arm. The first bolt group 8 passes through the mounting hole to fix the connecting arm 6 on the fixed plate 7. The stepper motor 4 is installed at one end of the U-shaped connecting arm through the stepper motor bracket 5. The stepper motor bracket 5 is mainly used to fix the stepper motor 4 to maintain the stability and safety of the stepper motor. The output shaft of the stepper motor 4 is connected to the cleaning brush 13 shaft through the coupling 12, driving the cleaning brush 13 to rotate. The stepper motor 4 is connected to the coupling 12 through a key. The coupling 12 has the functions of buffering, vibration reduction and improving the dynamic performance of the shaft system. As the main component of the transmission, the stepper motor 4 can be selected as a low-power motor because the required speed requirement is not high. The other end of the U-shaped connecting arm is installed with a rolling bearing 16; one end of the cleaning brush 13 is connected to the coupling 12, and the other end is connected to the rolling bearing 16, which is used to support the cleaning brush 13 to rotate, reduce the friction coefficient during the movement, reduce power, and increase the service life.

[0032] In the preferred embodiment of the present invention, a sensing probe bracket 10 is also installed on the end of the U-shaped connecting arm, and the sensing probe 9 is installed on the sensing probe bracket 10; the sensing probe 9 is connected to the PLC controller in communication, and the signal output end of the PLC controller is connected to the stepper motor 4. The sensing probe bracket 10 is fixed to the connecting arm 6 by a second bolt group 11. In this embodiment, a compressed air pipe 15 is also installed on the end of the U-shaped connecting arm, and the compressed air pipe 15 passes through the hole opened on the stepper motor bracket 10 and faces the cleaning brush 13, and can blow dust facing the rotating cleaning brush 13; a solenoid valve is also provided on the compressed air pipe 15, and the solenoid valve is connected to the PLC controller in communication, and can control the valve switch according to the control requirements.

[0033] In a preferred embodiment of the present invention, the scanning head box includes an upper head box 2 of the scanning frame and a lower head box 3 of the scanning frame. The upper head box 2 of the scanning frame is installed on the top surface slide rail inside the scanning frame 1, and the lower head box 3 of the scanning frame is installed on the bottom surface slide rail inside the scanning frame 1.

[0034] like Figure 4 As shown, the control method of the scanning frame dust removal device of the present invention is as follows:

[0035] The upper head box 2 and the lower head box 3 of the scanning frame will reciprocate along the paper surface on the slide rail of the scanning frame 1; whenever the upper head box 2 and the lower head box 3 of the scanning frame are close to the starting end of the scanning frame 1, the induction probe 9 will sense the box bodies of the upper head box 2 and the lower head box 3 of the scanning frame, and transmit the induction signal to the PLC controller. The stepper motor 4 drives the coupling 12 to rotate forward according to the instructions given by the PLC controller, and the coupling 12 drives the cleaning brush 13 to rotate in the same direction. In this process, the upper head box 2 and the lower head box 3 of the scanning frame are always moving toward the starting end. When the upper head box 2 and the lower head box 3 of the scanning frame reach the starting end, the induction probe 9 cannot sense the box bodies of the upper head box 2 and the lower head box 3 of the scanning frame, and the probe light of the induction probe 9 goes out. The PLC controller receives the induction signal and transmits the instruction to the stepper motor 4, and the stepper motor 4 stops immediately. As the upper head box 2 and the lower head box 3 of the scanning frame are affected by the scanning frame limit switch and move in the opposite direction and start to move away from the starting end, the light of the induction probe 9 lights up again, sensing the upper head box 2 and the lower head box 3 of the scanning frame, and the stepper motor 4 receives the instruction of the PLC controller to reverse the movement, thereby driving the cleaning brush 13 to sweep in the opposite direction, which can play the role of sweeping dust again. When the light of the induction probe 9 is not on, it means that the upper head box 2 and the lower head box 3 of the scanning frame have left the dust sweeping position, and the stepper motor 4 stops working immediately.

[0036] During the dust removal process, the induction probe 9 will light up twice, the stepper motor 4 will perform forward and reverse movements respectively, and the PLC controller will transmit the signal to the solenoid valve, and the compressed air pipe 15 will also blow dust during the cleaning process.

[0037] The above control scheme is suitable for the state where the scanning head box is horizontal. When the scanning head box actually needs to work at a certain tilt angle, the connecting arm 6 can be adjusted to the same tilt angle as the scanning head box. In this case, the stepper motor 4 tilts with the tilt of the connecting arm 6 and continues to drive the cleaning brush 13 to rotate.

[0038] The dust removal device provided in the embodiment of the present invention has a simple structure and can change to the same inclination angle as the upper head box 2 and the lower head box 3 of the scanning frame are tilted. It can automatically start and stop the stepper motor by sensing the probe signal, and can automatically remove dust on the surface of the sensor platform of the scanning head box, thereby improving the degree of automation of the equipment, freeing the sensor measurement from the influence of dust, and improving the measurement accuracy of the scanning frame.

[0039] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A scanning frame dust removal method, implemented based on a scanning frame dust removal device, characterized in that: The steps include: The scanning head box reciprocates along the paper surface on the slide rail of the scanning frame (1). When the scanning head box approaches the starting end of the scanning frame (1), the sensing probe (9) senses the scanning head box and transmits the sensing signal to the PLC controller. The PLC controller issues an instruction to control the stepper motor (4) to rotate, driving the cleaning brush (13) to rotate in the same direction, thereby cleaning the scanning head box. During a cleaning process, the scanning head box is always moving toward the starting end of the scanning frame (1). When the scanning head box reaches the starting end, the sensing probe (9) cannot sense the scanning head box. At this time, the PLC controller controls the stepper motor (4) to stop rotating. When the scanning head box moves in a direction away from the starting end, the sensing probe (9) senses the scanning head box. The PLC controller controls the stepper motor (4) to reverse and drive the cleaning brush (13) to clean in the opposite direction. A scanning frame dust removal device, comprising a scanning frame (1), a scanning head box, a stepping motor (4), a connecting arm (6), a fixing plate (7) and a cleaning brush (13); The scanning head box is mounted on the scanning frame (1) and can reciprocate along the scanning frame (1); the fixing plate (7) is fixed on the inner wall end surface of the scanning frame (1); the connecting arm (6) is mounted on the fixing plate (7) via a first bolt group (8); the first bolt group (8) can be loosened to adjust the inclination angle of the connecting arm (6); The stepper motor (4) is mounted on a stepper motor bracket (5), and the stepper motor bracket (5) is connected to the connecting arm (6) via a third bolt group (14); the output shaft of the stepper motor (4) is connected to the cleaning brush (13); The stepper motor (4) is mounted on a U-shaped end of the connecting arm (6) via a stepper motor bracket (5), and the output shaft of the stepper motor (4) is connected to the shaft of the cleaning brush (13) via a coupling (12); The other U-shaped end of the connecting arm (6) is mounted with a rolling bearing (16); one end of the cleaning brush (13) is connected to the coupling (12), and the other end is connected to the rolling bearing (16); A sensing probe bracket (10) is also mounted on the U-shaped end of the connecting arm (6), and the sensing probe (9) is mounted on the sensing probe bracket (10); the sensing probe (9) is communicatively connected to a PLC controller, and a signal output end of the PLC controller is connected to a stepping motor (4); A compressed air pipe (15) is also installed at the U-shaped end of the connecting arm (6), and the compressed air pipe (15) is directly opposite to the cleaning brush (13) through a hole opened on the stepper motor bracket (5); a solenoid valve is also arranged on the compressed air pipe (15), and the solenoid valve is communicatively connected to the PLC controller.

2. The scanning frame dust removal method according to claim 1, characterized in that: The connecting arm rod (6) is U-shaped, a mounting hole is provided at the bottom of the U-shape, and a first bolt group (8) passes through the mounting hole to fix the connecting arm rod (6) on the fixing plate (7).

3. The scanning frame dust removal method according to claim 1, characterized in that: The sensing probe bracket (10) is fixed to the connecting arm (6) via a second bolt group (11).

4. The scanning frame dust removal method according to claim 1, characterized in that: The scanning head box comprises an upper head box (2) of the scanning frame and a lower head box (3) of the scanning frame. The upper head box (2) of the scanning frame is installed on a top surface slide rail inside the scanning frame (1), and the lower head box (3) of the scanning frame is installed on a bottom surface slide rail inside the scanning frame (1).

5. The scanning frame dust removal method according to claim 1, characterized in that: The scanning frame (1) is an O-shaped scanning frame or a C-shaped scanning frame.

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