Mylar film automatic replacement device and coal detection system

Abstract

The utility model relates to the technical field of on-line substance detection equipment, and discloses an automatic Mylar film replacing device which comprises a sample conveying belt (1), an on-line sample (2) is placed on the sample conveying belt (1), a mounting frame (3) is arranged above the on-line sample (2), a driving wheel (4) and a driven wheel (5) are arranged on the mounting frame (3), and the driving wheel (4) and the driven wheel (5) are arranged on the sample conveying belt (1). A mylar film conveying channel (301) is formed in the mounting frame (3), and a mylar film (6) can penetrate through the interior of the mylar film conveying channel (301), is attached to the lower edge of the peripheral face of the driving wheel (4) and the lower edge of the peripheral face of the driven wheel (5) and is driven by the driving wheel (4) to move. In addition, the utility model also discloses a coal detection system. The automatic Mylar film replacing device is simple in structure, convenient to operate and good in using effect.

Description

Technical Field

[0001] The utility model relates to the technical field of online material detection equipment, in particular to an automatic Mylar film replacement device and a coal detection system. Background Art

[0002] In the existing online coal composition analysis process, the Mylar film of the XRF module (radio frequency signal light transmission module) is very easy to be contaminated during the transmission and detection process. During the use of the existing Mylar film, the degree of contamination is usually judged manually to determine whether the Mylar film needs to be replaced, which has low work efficiency and high replacement cost.

[0003] In view of this, it is necessary to provide an automatic Mylar film replacement device to solve or overcome the above technical problems. Utility Model Content

[0004] On one hand, the technical problem to be solved by the utility model is to provide an automatic Mylar film replacement device, which can automatically detect the dirtiness of the surface of the Mylar film and automatically replace the Mylar film according to feedback information.

[0005] Another technical problem to be solved by the utility model is to provide a coal detection system. The coal detection system has a simple structure, automatically detects the surface of the Mylar film, and realizes automatic replacement.

[0006] In order to solve the above technical problems, the technical solution proposed by the utility model is:

[0007] A Mylar film automatic replacement device comprises a sample conveyor belt, on which online samples are placed, a mounting frame is provided above the online samples, a driving wheel and a driven wheel are provided on the mounting frame, a Mylar film transmission channel is formed on the mounting frame, and the Mylar film can pass through the Mylar film transmission channel and abut against the lower edges of the outer peripheral surfaces of the driving wheel and the driven wheel, and move under the drive of the driving wheel.

[0008] Preferably, an operation window is formed on the mounting frame and penetrates the upper and lower thickness of the mounting frame.

[0009] Preferably, a buffer adjustment structure is provided on the driving wheel and the driven wheel, and the buffer adjustment structure includes a fixed shaft and a longitudinal threaded shaft connected to the fixed shaft, a lower fixed sleeve and an upper threaded sleeve are provided on the longitudinal threaded shaft, and a compression spring is provided between the lower fixed sleeve and the upper threaded sleeve.

[0010] Preferably, bearings are provided between the fixed shaft and the driving wheel, and between the fixed shaft and the driven wheel.

[0011] Preferably, the central area of ​​the lower fixing sleeve is formed as a through hole, and the central area of ​​the upper threaded sleeve is formed with a threaded inner hole, which is adapted to the longitudinal threaded shaft.

[0012] Preferably, the lower fixing sleeve is fixedly connected to the mounting frame.

[0013] Preferably, a silicone protective layer is provided on the outer circumferential surface of the driving wheel and the driven wheel.

[0014] Preferably, the automatic Mylar film replacement device also includes a positive pressure blowing device, an X-ray generating device, a scanning device and an energy structure device, the positive pressure blowing device is arranged above the operating window of the mounting frame, and the X-ray generating device, the scanning device and the energy structure device are arranged above the positive pressure blowing device.

[0015] Preferably, the positive-pressure blowing device, the X-ray generating device, the scanning device and the energy structure device are all fixedly connected to the mounting frame via a mounting bracket.

[0016] A coal detection system comprises an automatic Mylar film replacement device according to any one of the above technical solutions.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The utility model places online samples on a sample conveyor belt, and arranges a mounting frame above the online samples, on which a driving wheel and a driven wheel are mounted. At the same time, a Mylar film transmission channel is arranged on the mounting frame, through which the Mylar film passes, and is abutted against the lower part of the outer peripheral surface of the driving wheel and the driven wheel. When the driving wheel rotates, the Mylar film is driven to move forward, so that the Mylar film can be replaced. The utility model has a simple structure, is convenient to operate, and has a good use effect.

[0019] Through the above technical solution, the automatic Mylar film replacement device of the utility model includes a sample conveyor belt, an online sample is placed on the sample conveyor belt, a mounting frame is provided above the online sample, a driving wheel and a driven wheel are provided on the mounting frame, a Mylar film transmission channel is formed on the mounting frame, and the Mylar film can pass through the Mylar film transmission channel and abut against the lower edge of the outer peripheral surface of the driving wheel and the driven wheel, and move under the drive of the driving wheel. The automatic Mylar film replacement device of the utility model realizes automatic belt feeding of the Mylar film by passing the Mylar film through the Mylar film transmission channel and driving the Mylar film forward by the driving wheel, and has a simple structure, convenient operation, and good use effect.

[0020] Other advantages of the present invention and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a specific embodiment of the Mylar film automatic replacement device described in the utility model;

[0022] Figure 2 It is a structural schematic diagram of a specific embodiment of the buffer adjustment structure described in the utility model.

[0023] Description of Reference Numerals

[0024] 1 Sample conveyor 2 Online samples

[0025] 3 Mounting rack 301 Mylar film transmission channel

[0026] 302 operating window 4 driving wheel

[0027] 5 driven wheel 6 Mylar film

[0028] 7 Buffer adjustment structure 701 fixed shaft

[0029] 702 longitudinal threaded shaft 703 lower fixed sleeve

[0030] 704 upper thread sleeve 705 compression spring

[0031] 8Positive pressure blowing device 9X-ray generating device

[0032] 10 scanning device 11 energy receiving device DETAILED DESCRIPTION

[0033] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features thereof may be combined with each other.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0036] like Figure 1As shown, on one hand, the utility model provides an automatic Mylar film replacement device, comprising a sample conveyor belt 1, on which an online sample 2 is placed, a mounting frame 3 is provided above the online sample 2, a driving wheel 4 and a driven wheel 5 are provided on the mounting frame 3, a Mylar film transmission channel 301 is formed on the mounting frame 3, and the Mylar film 6 can pass through the Mylar film transmission channel 301 and abut against the lower edge of the outer circumferential surface of the driving wheel 4 and the driven wheel 5, and move under the drive of the driving wheel 4.

[0037] In the utility model, a conveyor belt driving wheel and a conveyor belt driven wheel are respectively provided at both ends of the sample conveyor belt 1. The sample conveyor belt 1 conveys the online sample 2 through the conveyor belt driving wheel. The conveyor belt driving wheel can be connected to a motor to provide power for the conveyor belt driving wheel. Of course, since the sample conveyor belt 1 is relatively soft, a support plate can be provided under the sample conveyor belt 1 to support the sample conveyor belt 1, so as to avoid multiple online samples 2 being placed on the sample conveyor belt 1, causing deformation of the sample conveyor belt 1.

[0038] Moreover, in the utility model, the mounting frame 3 is provided with a driving wheel 4 and a driven wheel 5, and the driving wheel 4 is connected with a motor to provide power for the driving wheel 4. The mounting frame 3 is provided with a Mylar film transmission channel 301, which is suitable for the Mylar film 6 to pass through. It is conceivable that a protective structure may be provided in the Mylar film transmission channel 301 to prevent the Mylar film 6 from being damaged. The Mylar film 6 is attached to the driving wheel 4 and the driven wheel 5, and the driven wheel 5 can flatten the Mylar film 6 and provide a certain tension.

[0039] As a preferred embodiment of the present invention, an operation window 302 is formed on the mounting frame 3 and penetrates the upper and lower thickness of the mounting frame 3 .

[0040] In a specific embodiment of the utility model, the operating window 302 penetrates the thickness of the mounting frame 3, and the driving wheel 4 and the driven wheel 5 are respectively arranged at the front and rear ends of the operating window 302. The driving wheel 4 provides stretching power so that the Mylar film 6 has a certain tension.

[0041] Specifically, the operation window 302 is formed as a rectangular window or a square window, and the operation window 302 is located directly above the online sample 2 to shield the online sample.

[0042] It is conceivable that a plurality of operation windows 302 may be arranged side by side, and each operation window 302 corresponds to an online sample 2 placed on the sample conveyor belt 1, which may improve the online detection efficiency.

[0043] As a preferred embodiment of the present invention, Figure 2As shown, the driving wheel 4 and the driven wheel 5 are both provided with a buffer adjustment structure 7, and the buffer adjustment structure 7 includes a fixed shaft 701 and a longitudinal threaded shaft 702 connected to the fixed shaft 701, and a lower fixed sleeve 703 and an upper threaded sleeve 704 are provided on the longitudinal threaded shaft 702, and a compression spring 705 is provided between the lower fixed sleeve 703 and the upper threaded sleeve 704.

[0044] In a specific embodiment of the utility model, a buffer adjustment structure 7 is provided on the driving wheel 4, and a buffer adjustment structure 7 is also provided on the driven wheel 5. The structures of the two buffer adjustment structures 7 can be set to be completely the same, thereby reducing the production cost. A single buffer adjustment structure 7 includes a fixed shaft 701 and a longitudinal threaded shaft 702 connected to the fixed shaft 701 or integrally formed with the fixed shaft 701. An external thread is formed on the outer peripheral surface of the longitudinal threaded shaft 702. A lower fixed sleeve 703 and an upper threaded sleeve 704 are sleeved on the longitudinal threaded shaft 702. A gap is formed between the lower fixed sleeve 703 and the longitudinal threaded shaft 702, and a threaded connection is formed between the upper threaded sleeve 704 and the longitudinal threaded shaft 702. Of course, a locking nut can also be set above the upper threaded sleeve 704 to prevent the upper threaded sleeve 704 from loosening during use. Of course, other anti-loosening measures can also be adopted, for example, thread glue can also be used.

[0045] It is conceivable that a compression spring is provided between the lower fixing sleeve 703 and the upper threaded sleeve 704 , thereby providing a buffer force for the driving wheel 4 and the driven wheel 5 , and also providing a downward pressure for the driving wheel 4 and the driven wheel 5 .

[0046] As a preferred embodiment of the present invention, bearings are provided between the fixed shaft 701 and the driving wheel 4 , and between the fixed shaft 701 and the driven wheel 5 .

[0047] In a specific embodiment of the utility model, bearings are provided at both ends of the fixed shaft 701, and the outer ring of the bearing is against the inner circumference of the inner hole of the driving wheel 4 or the driven wheel 5. Specifically, steps are provided at both ends of the fixed shaft 701, and one side of the step is against one side of the inner ring of the bearing. A shaft elastic circlip is also provided on the fixed shaft 701, and the shaft elastic circlip is against the outer side of the inner ring of the bearing to prevent the bearing from moving. Of course, other structural forms can also be used to prevent the bearing from moving left and right, which also belongs to the protection scope of the utility model.

[0048] As a preferred embodiment of the present invention, the central area of ​​the lower fixing sleeve 703 is formed as a through hole, and the central area of ​​the upper threaded sleeve 704 is formed with a threaded inner hole, which is adapted to the longitudinal threaded shaft 702 .

[0049] In a specific embodiment of the present invention, the central area of ​​the lower fixing sleeve 703 is formed as a light hole, so that the longitudinal threaded shaft 702 can move freely in the lower fixing sleeve 703. The premise that the longitudinal threaded shaft 702 can move freely in the lower fixing sleeve 703 is that there is a fixed support on the lower fixing sleeve 703. During the up and down movement of the longitudinal threaded shaft 702, the lower fixing sleeve 703 is always in a fixed state and will not move with the up and down movement of the longitudinal threaded shaft 702. Therefore, as a preferred embodiment of the present invention, the lower fixing sleeve 703 is fixedly connected to the mounting frame 3.

[0050] As a preferred embodiment of the present invention, a silicone protective layer is provided on the outer peripheral surfaces of the driving wheel 4 and the driven wheel 5.

[0051] As a specific embodiment of the present invention, the driving wheel 4 includes a driving wheel core shaft and a silicone protective layer arranged on the outer peripheral surface of the driving wheel core shaft. The central area of ​​the driving wheel core shaft is provided with an installation through hole for installing the bearing and the fixed shaft 701.

[0052] As a preferred embodiment of the present utility model, the automatic Mylar film replacement device also includes a positive pressure blowing device 8, an X-ray generating device 9, a scanning device 10 and an energy receiving device 11. The positive pressure blowing device 8 is arranged above the operating window 302 of the mounting frame 3, and the X-ray generating device 9, the scanning device 10 and the energy receiving device 11 are arranged above the positive pressure blowing device 8.

[0053] In a specific embodiment of the present invention, a control system is also included, and the control system is respectively connected to the positive pressure blowing device 8, the X-ray generating device 9, the scanning device 10, the energy receiving device 11, the motor of the driving wheel 4 and other signals.

[0054] As a preferred embodiment of the present utility model, the positive pressure blowing device 8, the X-ray generating device 9, the scanning device 10 and the energy receiving device 11 are all fixedly connected to the mounting frame 3 via a mounting bracket.

[0055] As a preferred embodiment of the present invention, the surface of the sample conveyor belt 1 is provided with an anti-slip layer or an anti-slip structure.

[0056] In an optimal embodiment of the utility model, it includes a sample conveyor belt 1, an online sample 2 is placed on the sample conveyor belt 1, a mounting frame 3 is provided above the online sample 2, a driving wheel 4 and a driven wheel 5 are provided on the mounting frame 3, a motor is connected to the driving wheel 4, a Mylar film transmission channel 301 and an operation window 302 that penetrates the upper and lower thickness of the mounting frame 3 are formed on the mounting frame 3, the Mylar film 6 can pass through the Mylar film transmission channel 301, the operation window 302 is arranged corresponding to the online sample 2, and both the driving wheel 4 and the driven wheel 5 are provided with There is a buffer adjustment structure 7, which includes a fixed shaft 701 and a longitudinal threaded shaft 702 connected to the fixed shaft 701, a lower fixed sleeve 703 and an upper threaded sleeve 704 are provided on the longitudinal threaded shaft 702, a compression spring 705 is provided between the lower fixed sleeve 703 and the upper threaded sleeve 704, bearings are provided between the fixed shaft 701 and the driving wheel 4, and between the fixed shaft 701 and the driven wheel 5, elastic retaining rings for the shaft are also provided at both ends of the fixed shaft 701, and a silicone protective layer is provided on the outer circumference of the driving wheel 4 and the driven wheel 5.

[0057] Another aspect of the present invention provides a coal detection system, comprising the automatic coal sampling device described in any one of the above technical solutions.

[0058] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

[0059] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present utility model will not further describe various possible combinations.

[0060] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A Mylar film automatic replacement device, characterized in that: The invention comprises a sample conveyor belt (1), on which an online sample (2) is placed, a mounting frame (3) is arranged above the online sample (2), a driving wheel (4) and a driven wheel (5) are arranged on the mounting frame (3), a Mylar film transmission channel (301) is formed on the mounting frame (3), and a Mylar film (6) can pass through the Mylar film transmission channel (301) and abut against the lower edge of the outer peripheral surface of the driving wheel (4) and the driven wheel (5), and move under the drive of the driving wheel (4).

2. The Mylar film automatic replacement device according to claim 1, characterized in that: The mounting frame (3) is also provided with an operating window (302) that penetrates the upper and lower thickness of the mounting frame (3).

3. The automatic Mylar film replacement device according to claim 1, characterized in that: The driving wheel (4) and the driven wheel (5) are both provided with a buffer adjustment structure (7), the buffer adjustment structure (7) comprising a fixed shaft (701) and a longitudinal threaded shaft (702) connected to the fixed shaft (701), a lower fixed sleeve (703) and an upper threaded sleeve (704) being provided on the longitudinal threaded shaft (702), and a compression spring (705) being provided between the lower fixed sleeve (703) and the upper threaded sleeve (704).

4. The automatic Mylar film replacement device according to claim 3, characterized in that: Bearings are provided between the fixed shaft (701) and the driving wheel (4), and between the fixed shaft (701) and the driven wheel (5).

5. The automatic Mylar film replacement device according to claim 3, characterized in that: The central area of ​​the lower fixing sleeve (703) is formed as a through hole, and the central area of ​​the upper threaded sleeve (704) is formed with a threaded inner hole, which is adapted to the longitudinal threaded shaft (702).

6. The automatic Mylar film replacement device according to claim 5, characterized in that: The lower fixing sleeve (703) is fixedly connected to the mounting frame (3).

7. The automatic Mylar film replacement device according to claim 1, characterized in that: A silicone protective layer is provided on the outer circumference of the driving wheel (4) and the driven wheel (5).

8. The automatic Mylar film replacement device according to any one of claims 1 to 7, characterized in that: The Mylar film automatic replacement device also includes a positive pressure blowing device (8), an X-ray generating device (9), a scanning device (10) and an energy receiving device (11); the positive pressure blowing device (8) is arranged above the operating window (302) of the mounting frame (3); and the X-ray generating device (9), the scanning device (10) and the energy receiving device (11) are arranged above the positive pressure blowing device (8).

9. The Mylar film automatic replacement device according to claim 8, characterized in that: The positive pressure blowing device (8), the X-ray generating device (9), the scanning device (10) and the energy receiving device (11) are all fixedly connected to the mounting frame (3) via a mounting bracket.

10. A coal detection system, characterized in that: It comprises the automatic Mylar film replacement device according to any one of claims 1 to 9.

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