Flying dust monitor with paper tape allowance monitoring function

Abstract

The utility model belongs to the technical field of raise dust monitor manufacturing, and particularly relates to a raise dust monitor with a paper tape allowance monitoring function, which comprises a raise dust monitor body, a buzzer, a first laser transmitter and a first laser receiver, the first laser transmitter and the first laser receiver are matched with each other, and the first laser transmitter and the first laser receiver are both in signal connection with a controller. The signal output end of the controller is in signal connection with the buzzer, a gap is preset between light rays emitted by the first laser emitter and a disc shaft of a paper placing disc of the flying dust detector body, and the light rays emitted by the first laser emitter penetrate through the interior of a virtual cylinder formed by taking the paper placing disc as the bottom and the disc shaft as the height; the problem that an existing flying dust detector cannot detect the remaining amount of the paper tape is solved.

Description

Technical Field

[0001] The present application belongs to the technical field of dust monitoring instrument manufacturing, and specifically relates to a dust monitoring instrument with paper tape remainder monitoring function. Background Art

[0002] Paper tape is the main operation and maintenance content of the β-ray dust monitor. During daily operation and maintenance, the dust monitor needs to be opened regularly to check whether there is enough clean paper tape remaining inside to ensure that the dust monitor can continue to monitor; that is to say, the existing dust detector requires users to check whether there is enough paper tape regularly. When the user forgets to check for a period of time, the dust detector will automatically shut down due to lack of paper tape, which is very inconvenient. Utility Model Content

[0003] The purpose of the present application is mainly to address the shortcomings of the prior art. A dust monitor with paper tape remaining amount monitoring is designed by using a first laser transmitter that emits light that can penetrate the interior of a virtual cylinder formed with the paper tray as the base and the tray axis as the height, in conjunction with a first laser receiver. The remaining paper tape on the tray is determined by the distance between the light emitted by the first laser transmitter and the tray axis of the paper tray, thereby achieving the purpose of predicting the remaining paper tape and solving the problem that the current dust detector cannot detect the remaining paper tape.

[0004] In order to achieve the above purpose, the technical solution adopted in this application is:

[0005] A dust monitor with paper tape residue monitoring function comprises a dust detector body, a buzzer, and a first laser transmitter and a first laser receiver that cooperate with each other, wherein the first laser transmitter and the first laser receiver are both connected to a controller by signal, and the signal output end of the controller is connected to the buzzer by signal, and a preset gap is provided between the light emitted by the first laser transmitter and the disk shaft of the paper tray of the dust detector body, and the light emitted by the first laser transmitter passes through the interior of a virtual cylinder formed with the paper tray as the bottom and the disk shaft as the height.

[0006] Preferably, an arc-shaped hole is provided on the paper placement tray, the virtual circle where the arc of the arc-shaped hole is located is concentric with the paper placement tray, the central angle of the arc of the arc-shaped hole is less than 360°, the first laser emitter is located on one side of the paper placement tray, the first laser receiver is located on the other side of the paper placement tray, the light emitted by the first laser emitter can reach the first laser receiver, the light emitted by the first laser emitter is parallel to the axis of the disk shaft, and the distance from the light emitted by the first laser emitter to the axis of the disk shaft is equal to the radius of the virtual circle.

[0007] Preferably, the central angle of the arc of the arc-shaped hole is equal to 90°.

[0008] Preferably, it also includes a mobile driver, which is fixed on the dust detector body, and the execution end of the mobile driver is fixedly provided with the first laser receiver and the first laser transmitter, and the direction in which the mobile driver drives the first laser receiver and the first laser transmitter to move is parallel to the end surface of the paper placement tray, and the projection of the arc hole on the end surface of the paper placement tray is located on the path of the mobile driver driving the first laser receiver to move.

[0009] Preferably, the paper placing tray is provided with a plurality of virtual circles with different radii, each of the virtual circles is provided with the arc-shaped hole, and all the virtual circles are on the path where the mobile driver drives the first laser receiver to move.

[0010] Preferably, the mobile driver includes a first rack, a second rack, a first gear, a second gear, and a servo motor. The servo motor is provided on the dust detector body. The first gear is coaxially arranged on the output shaft of the servo motor. The first gear is meshed with the second gear. The axis of the first gear is perpendicular to the axis of the paper placement tray. The first rack and the second rack are respectively slidably arranged on opposite sides of the dust detector body. The first rack is meshed with a side of the first gear facing away from the second gear. The second rack is meshed with a side of the second gear facing away from the first gear. The first laser transmitter is arranged at the lower end of the first gear. The first laser receiver is arranged at the lower end of the second rack. The paper placement tray is between the first rack and the second rack. The sliding path of the first rack is the path of the mobile driver driving the first laser receiver to move.

[0011] Preferably, the light emitted by the first laser emitter is perpendicular to the axis of the paper tray.

[0012] Preferably, a second laser emitter and a second laser receiver that cooperate with each other are arranged on the dust detector body between the β-ray detection unit of the dust detector body and the paper placement tray, the light emitted by the second laser emitter can reach the second laser receiver, the light emitted by the second laser emitter is perpendicular to the disk axis, and the second laser emitter and the second laser receiver are both connected to the controller signal.

[0013] Compared with the prior art, this application has the following beneficial effects:

[0014] 1. The present application adopts a method of arranging a first laser transmitter that can emit light that can penetrate the interior of a virtual cylinder formed with the paper tray as the base and the tray axis as the height, in conjunction with a first laser receiver, to design a dust monitor with paper tape residue monitoring function. The distance between the light emitted by the first laser transmitter and the tray axis of the paper tray is used to determine the paper tape residue on the tray, thereby achieving the purpose of predicting the paper tape residue, and solving the problem that the current dust detector cannot detect the paper tape residue.

[0015] 2. The arc-shaped hole in the present application is provided so that when the remaining amount of paper tape is less than the preset amount during the rotation of the paper tray, the light emitted by the first laser transmitter can be received by the first laser receiver within a sufficient period of time. Compared with a simple hole, the arc-shaped hole is longer, which can avoid the situation where the hole flashes by during the rotation of the paper tray, resulting in the light emitted by the first laser transmitter not necessarily being received by the first laser receiver.

[0016] 3. In the present application, a driver drives the first rack and the second rack to move, thereby driving the first laser emitter and the first laser receiver to move toward the disk shaft of the paper tray or away from the disk shaft of the paper tray. When the driver drives the first laser emitter and the first laser receiver to move toward the disk shaft of the paper tray, the distance between the light emitted by the first laser emitter and the disk shaft of the paper tray becomes closer; and when the driver drives the first laser emitter and the first laser receiver to move away from the disk shaft of the paper tray, the distance between the light emitted by the first laser emitter and the disk shaft of the paper tray becomes farther, thereby adjusting the distance between the light emitted by the first laser receiver and the axis of the disk shaft; it is also possible to adjust the amount of margin according to actual needs. For example, if you want to have less margin before the alarm is triggered, the driver can drive the first laser emitter and the first laser receiver to move toward the disk shaft of the paper tray; at the same time, it can also adapt to the margin adjustment of paper tapes of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram showing the structure of the dust detector body in this application;

[0018] Figure 2 A schematic diagram showing the structure of a paper tray, a first laser transmitter and a first laser receiver in this application;

[0019] Figure 3 A schematic diagram of the structure in which a paper tray is placed is provided for this application;

[0020] Figure 4 This is a schematic diagram of the structure of the first laser transmitter and the first laser receiver in the present application using the first configuration mode;

[0021] Figure 5This is a schematic diagram of the structure of the first laser transmitter and the first laser receiver in the present application using the second configuration method.

[0022] Figure 6 This is a schematic diagram of a paper tray in this application having a plurality of virtual circles with different radii, each of which has an arc-shaped hole;

[0023] Figure 7 This is a schematic diagram of a paper tray in this application in which only one arc-shaped hole with a relatively large width is provided.

[0024] Among them, 1. Dust detector body; 2. β-ray detection unit; 3. Paper tray; 4. Paper tray; 5. Buzzer; 6. First laser transmitter; 7. First laser receiver; 8. Arc hole; 9. Disk shaft; 10. First rack; 11. Second rack; 12. First gear; 13. Second gear; 14. Servo motor; 15. Paper tape; 16. Second laser transmitter; 17. Second laser receiver. DETAILED DESCRIPTION

[0025] like Figure 1-5 As shown, a dust monitor with paper tape residue monitoring function includes a dust detector body 1, a buzzer 5, and a first laser emitter 6 and a first laser receiver 7 that cooperate with each other. The first laser emitter 6 and the first laser receiver 7 are both connected to a controller by signal. The signal output end of the controller is connected to the buzzer 5. The light emitted by the first laser emitter 6 reaches a preset gap between the disk shaft 9 of the paper tray 3 of the dust detector body 1. The light emitted by the first laser emitter 6 passes through the interior of a virtual cylinder formed with the paper tray 3 as the bottom and the disk shaft 9 as the height.

[0026] In this embodiment, when in use, the paper tape 15 is placed on the paper tray 3, and the paper tape 15 is wound on the disk shaft 9 on the paper tray 3 (such as Figure 3As shown in the figure, one end of the paper tape 15 is rolled up on the paper receiving tray 4, and the part of the paper tape between the paper receiving tray 4 and the paper placing tray 3 is just detected by the dust detector body 1; thereafter, the paper placing tray 3 continuously releases the paper tape 15, and the paper receiving tray 4 continuously collects the paper tape 15 released from the paper placing tray 3 and detected by the dust detector body 1. At this time, the maximum volume of the paper tape 15 placed on the paper placing tray 3 is equal to the volume of a virtual cylinder formed with the paper placing tray 3 as the base and the tray shaft 9 as the height. During the consumption process of the paper tape 15 on the paper placing tray 3, only the projection area of ​​the rolled-up paper tape 15 on the paper placing tray 3 changes. Therefore, when it is necessary to detect the amount of the remaining paper tape 15 on the paper placing tray 3, it is only necessary to detect the remaining projection area of ​​the rolled-up paper tape 15 on the paper placing tray 3. Therefore, in the present embodiment, the light emitted by the first laser emitter 6 is set to be able to penetrate the interior of a virtual cylinder formed by the paper tray 3 as the bottom and the disk axis 9 as the height, and a preset gap is provided between the light emitted by the first laser emitter 6 and the disk axis 9 of the paper tray 3 of the dust detector body 1. The preset gap here is the margin of the paper tape 15 set according to actual conditions. That is to say, assuming that the thickness of the paper tape is 0.1mm and the radius of the disk shaft 9 is 3cm, and when the remaining amount of the paper tape is 27cm, it is assumed that π is taken as 3 for a rough calculation (rough calculation, mainly to explain the principle), that is, there are 3 turns of paper tape on the paper tray 3. Therefore, the gap between the light emitted by the first laser emitter 6 and the disk shaft 9 of the paper tray 3 of the dust detector body 1 is set to 3×0.1mm+3cm=30.3mm. After this setting, when the number of turns of the paper tape 15 on the paper tray 3 is less than 3, that is, the length is less than 27cm, the light emitted by the first laser emitter 6 is received by the first laser receiver 7, thereby transmitting the signal to the controller, and the controller transmits the signal to the buzzer 5, thereby generating an alarm sound. When the number of turns of the paper tape 15 on the paper tray 3 is greater than 3, that is, the length is greater than 27 cm, the light emitted by the first laser emitter 6 is blocked by the paper tape 15 rolled on the paper tray 3, so that the first laser receiver 7 cannot receive it, and the buzzer 5 will not emit an alarm sound.

[0027] There are two ways to set the first laser transmitter 6 and the first laser receiver 7.

[0028] The first setting method (such as Figure 1-4As shown): the paper tray 3 is provided with an arc hole 8, the virtual circle where the arc of the arc hole 8 is located is concentric with the paper tray 3, the central angle of the arc of the arc hole 8 is less than 360°, the first laser emitter 6 is located on one side of the paper tray 3, the first laser receiver 7 is located on the other side of the paper tray 3, the light emitted by the first laser emitter 6 can reach the first laser receiver 7, the light emitted by the first laser emitter 6 is parallel to the axis of the disk shaft 9, and the distance from the light emitted by the first laser emitter 6 to the axis of the disk shaft 9 is equal to the radius of the virtual circle.

[0029] After such arrangement, the light emitted by the first laser emitter 6 can pass through the arc-shaped hole 8. The arc-shaped arrangement is so that when the remaining amount of the paper tape 15 is less than the preset remaining amount during the rotation of the paper tray 3, the light emitted by the first laser emitter 6 can be received by the first laser receiver 7 within a sufficient period of time. Compared with a simple hole, the arc-shaped hole 8 is longer, which can avoid the situation where the hole flashes by during the rotation of the paper tray 3, resulting in the light emitted by the first laser emitter 6 not necessarily being received by the first laser receiver 7.

[0030] As a preferred mode, the arc center angle of the arc hole 8 is equal to 90°. Such a configuration can ensure that the arc hole 8 has a sufficient length after ensuring that the paper tray 3 and the tray shaft 9 have a sufficient contact portion.

[0031] As a preferred mode, it also includes a mobile driver, which is fixed on the dust detector body 1, and the execution end of the mobile driver is fixed with the first laser receiver 7 and the first laser transmitter 6, and the direction in which the mobile driver drives the first laser receiver 7 and the first laser transmitter 6 to move is parallel to the end surface of the paper tray 3, and the projection of the arc hole 8 on the end surface of the paper tray 3 is located on the path of the mobile driver driving the first laser receiver 7 to move. After such a setting, the distance between the light emitted by the first laser transmitter 6 and the axis of the disk shaft 9 is adjusted by the driver.

[0032] As a preferred method, Figure 6 As shown, the paper tray 3 is provided with a plurality of virtual circles with different radii, each of which is provided with the arc hole 8, and all the virtual circles are on the path of the first laser emitter 6 driven by the mobile driver. In this way, the different distances between the light emitted by the first laser emitter 6 and the axis of the tray shaft 9 are matched by setting the arc holes 8 with different radii. Of course, there is another setting method, such as Figure 7As shown, the width of the arc hole 8 is set larger, so that different distances between the light emitted by the first laser emitter 6 and the axis of the disk shaft 9 can be adjusted.

[0033] As a preferred embodiment, the mobile driver includes a first rack 10, a second rack 11, a first gear 12, a second gear 13, and a servo motor 14. The servo motor 14 is provided on the dust detector body 1. The first gear 12 is coaxially arranged on the output shaft of the servo motor 14. The first gear 12 is meshed with the second gear 13. The axis of the first gear 12 is perpendicular to the axis of the paper placing tray 3. The first rack 10 and the second rack 11 are respectively slidably arranged on opposite sides of the dust detector body 1. The first rack 10 is meshed with the side of the first gear 12 facing away from the second gear 13. The second rack 11 is meshed with the side of the second gear 13 facing away from the first gear 12. The first laser transmitter 6 is arranged at the lower end of the first gear 12, and the first laser receiver 7 is arranged at the lower end of the second rack 11. The paper placing tray 3 is between the first rack 10 and the second rack 11. The sliding path of the first rack 10 is the path of the mobile driver driving the first laser receiver 7 to move. After such arrangement, the rotation of the servo motor 14 can drive the first gear 12 to rotate, and the first gear 12 can drive the second gear 13 to rotate, so that the first rack 10 and the second rack 11 can slide on the dust detector body 1, and the sliding directions of the first rack 10 and the second rack 11 are parallel to the end surface of the paper tray 3 and perpendicular to the disk shaft 9. Therefore, the sliding of the first rack 10 and the second rack 11 can adjust the distance between the light emitted by the first laser emitter 6 and the axis of the disk shaft 9. Among them, Figure 4 The light emitted by the first laser emitter 6 is perpendicular to Figure 4 In this way, the first laser emitter 6 and the first laser receiver 7 can be driven by the first rack 10 and the second rack 11 respectively. Figure 6 and Figure 7 The arc-shaped hole 8 in the disk is used to adjust the distance between the light emitted by the first laser emitter 6 and the axis of the disk shaft 9.

[0034] The second arrangement of the first laser transmitter 6 and the first laser receiver 7 (eg Figure 5 As shown): the light emitted by the first laser emitter 6 is perpendicular to the axis of the paper tray 3.

[0035] As a preferred method, in order to detect whether the paper tape 15 in the dust detector body 1 is broken, a second laser emitter 16 and a second laser receiver 17 are provided on the dust detector body 1 between the β-ray detection unit 2 of the dust detector body 1 and the paper tray 3, and the light emitted by the second laser emitter 16 can reach the second laser receiver 17, and the light emitted by the second laser emitter 16 is perpendicular to the disk axis 9, and the second laser emitter 16 and the second laser receiver 17 are both connected to the controller signal. After such a setting, if the light emitted by the second laser emitter 16 is not received by the second laser receiver 17, the paper tape 15 is not broken; if the light emitted by the second laser emitter 16 is received by the second laser receiver 17, the paper tape 15 is broken, and the second laser receiver 17 transmits the signal to the controller, and the controller causes the buzzer 5 to sound an alarm to remind the staff.

Claims

1. A dust monitoring instrument with paper tape residual monitoring, characterized in that: The invention comprises a dust detector body (1), a buzzer (5), and a first laser emitter (6) and a first laser receiver (7) which cooperate with each other. The first laser emitter (6) and the first laser receiver (7) are both connected to a controller by signal. The signal output end of the controller is connected to the buzzer (5). A preset gap is formed between the light emitted by the first laser emitter (6) and the disk shaft (9) of the paper tray (3) of the dust detector body (1). The light emitted by the first laser emitter (6) penetrates the interior of a virtual cylinder formed by taking the paper tray (3) as the bottom and the disk shaft (9) as the height.

2. A dust monitoring device with paper tape remaining monitoring function according to claim 1, characterized in that: The paper placing tray (3) is provided with an arc hole (8), the virtual circle where the arc of the arc hole (8) is located is concentric with the paper placing tray (3), the central angle of the arc of the arc hole (8) is less than 360°, the first laser emitter (6) is located on one side of the paper placing tray (3), the first laser receiver (7) is located on the other side of the paper placing tray (3), the light emitted by the first laser emitter (6) can reach the first laser receiver (7), the light emitted by the first laser emitter (6) is parallel to the axis of the disk shaft (9), and the distance from the light emitted by the first laser emitter (6) to the axis of the disk shaft (9) is equal to the radius of the virtual circle.

3. A dust monitoring device with paper tape remaining monitoring function according to claim 2, characterized in that: The arc center angle of the arc-shaped hole (8) is equal to 90°.

4. A dust monitoring device with paper tape remaining monitoring function according to claim 2, characterized in that: It also includes a mobile driver, which is fixed on the dust detector body (1); the first laser receiver (7) and the first laser transmitter (6) are fixedly arranged on the execution end of the mobile driver; the direction in which the mobile driver drives the first laser receiver (7) and the first laser transmitter (6) to move is parallel to the end surface of the paper tray (3); and the projection of the arc hole (8) on the end surface of the paper tray (3) is located on the path in which the mobile driver drives the first laser receiver (7) to move.

5. A dust monitoring device with paper tape remaining monitoring function according to claim 4, characterized in that: The paper placing tray (3) is provided with a plurality of virtual circles with different radii, each of the virtual circles is provided with the arc-shaped hole (8), and all the virtual circles are on the path where the mobile driver drives the first laser receiver (7) to move.

6. The dust monitoring device with paper tape remaining monitoring function according to claim 4, characterized in that: The mobile driver comprises a first rack (10), a second rack (11), a first gear (12), a second gear (13), and a servo motor (14); the servo motor (14) is provided on the dust detector body (1); the first gear (12) is coaxially arranged on the output shaft of the servo motor (14); the first gear (12) is meshed with the second gear (13); the axis of the first gear (12) is perpendicular to the axis of the paper tray (3); the first rack (10) and the second rack (11) are respectively slidably arranged on opposite sides of the dust detector body (1); The first rack (10) is meshed with the side of the first gear (12) facing away from the second gear (13), the second rack (11) is meshed with the side of the second gear (13) facing away from the first gear (12), the first laser transmitter (6) is arranged at the lower end of the first gear (12), the first laser receiver (7) is arranged at the lower end of the second rack (11), the paper tray (3) is between the first rack (10) and the second rack (11), and the sliding path of the first rack (10) is the path of the first laser receiver (7) driven by the movable driver to move.

7. The dust monitoring device with paper tape remaining monitoring function according to claim 1, characterized in that: The light emitted by the first laser emitter (6) is perpendicular to the axis of the paper tray (3).

8. The dust monitoring device with paper tape remaining monitoring function according to claim 1, characterized in that: A second laser emitter (16) and a second laser receiver (17) are arranged on the dust detector body (1) between the β-ray detection unit (2) of the dust detector body (1) and the paper tray (3). The light emitted by the second laser emitter (16) can reach the second laser receiver (17). The light emitted by the second laser emitter (16) is perpendicular to the tray axis (9). The second laser emitter (16) and the second laser receiver (17) are both connected to the controller signal.

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