Hot roller cleanliness detection device

Abstract

The utility model belongs to the technical field of laser detection, and particularly relates to a hot roller cleanliness detection device which comprises a mounting bracket, a sliding rail, a sliding block, a connecting bridge frame, a laser transmitter, a laser receiver, a displacement sensor and a processor, the sliding rail is vertically fixed on the mounting bracket, and the sliding block is in sliding connection with the sliding rail; the connecting bridge frame is fixedly connected with the sliding block; the laser transmitter and the laser receiver are respectively positioned on the left side and the right side of the connecting bridge frame and are oppositely arranged; the displacement sensor is arranged on the connecting bridge frame; and the processor is used for drawing a displacement-laser intensity curve according to the received displacement signal and laser intensity signal. According to the hot roller cleanliness detection device, the problem of hot roller cleanliness detection in a high-temperature environment is solved, and the detection efficiency and accuracy are ensured.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of laser detection, specifically relates to a hot roller cleanliness detection device. BACKGROUND

[0002] In the process of drawing of polyester industrial yarn, the surface of the hot roller is prone to coking under high temperature, especially on the hot roller of industrial yarn with higher temperature. The coking will make the surface of the hot roller rough, and then seriously affect the quality and production efficiency of the product. At present, the hot roller is cleaned by manual wiping, but since the surface temperature is too high, the operator still mainly relies on visual inspection and experience to determine whether the surface of the hot roller is clean, which is not only low in efficiency, but also difficult to ensure the accuracy of the test results.

[0003] The patent application with the publication number CN105241779A discloses a detection method for the cleanliness of the surface of a mechanical part. The method samples the pollutants on the surface of the mechanical part by using AK225 solution, then separates the solution and the pollutants by low vacuum drying, and finally obtains the content of the pollutants per unit area on the surface of the mechanical part by using the weighing method, so as to determine the cleanliness value of the surface of the mechanical part. Although the test precision of this scheme is high, the operation is relatively complex in large-scale production tasks, and it is not suitable for the cleanliness detection of the surface of the hot roller under high temperature environment.

[0004] In addition, the patent with the authorized publication number CN101464412B proposes a photoelectric biosensor for rapid detection of surface cleanliness and a testing method. The method coats and samples the surface of the detected object by using a sampling swab, then detects the fluorescence intensity of the sample by using an optical instrument, compares the light intensity value with the hygiene cleanliness threshold value, and determines the cleanliness of the surface of the detected object. Although this method is simple in operation and fast in response, it is mainly suitable for real-time detection of the cleanliness of the surface of an object in the food processing, cosmetic production, medical treatment and other industries, and has high cost. The method also needs to contact the measured object, and is not suitable for the surface of the hot roller under high temperature environment and large-scale production.

[0005] In summary, although the existing technical schemes provide the detection method for the cleanliness of the surface to some extent, they are either complex in operation, or not suitable for high temperature environment, or have high cost and poor practicability. Therefore, it is particularly urgent to develop a hot roller cleanliness detection device. UTILITY MODEL CONTENT

[0006] The utility model aims at solving the deficiency in the prior art, and provides a hot roller cleanliness detection device.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] Before the specific scheme is proposed, the operator has gone to the industrial yarn production line to carry out preliminary experiments, fixed the laser pen at a suitable position on one end of the hot roller, and pasted a small piece of transparent adhesive tape on a certain position on the surface of the hot roller to simulate the coking phenomenon, rotated the hot roller, and observed the change of the laser spot. The experimental results show that when the hot roller rotates, the light spot flashes obviously, indicating that the light intensity changes significantly, and no matter whether the hot roller is in high speed or low speed state, the operator feeds back that it is difficult to identify the specific position of the transparent adhesive tape with naked eye.

[0009] Based on the above experimental exploration, the feasibility and accuracy of the scheme are confirmed, and based on the experimental exploration, the following specific technical scheme is proposed:

[0010] A hot roller cleanliness detection device, comprising a mounting bracket, a sliding rail, a sliding block, a connecting bridge, a laser emitter and a laser receiver, a displacement sensor and a processor;

[0011] The sliding rails are horizontally arranged, the number of which is 2, and the two sliding rails are parallel to each other and symmetrically distributed left and right, one end of each of the two sliding rails is fixed vertically on the mounting bracket, the distance between the two sliding rails is greater than the diameter of the hot roller, and the length of each of the two sliding rails is greater than the length of the hot roller;

[0012] The mounting bracket is used to fix the detection device on the drafting device, and its specific implementation mode has many kinds, as long as it can meet the fixing requirement, for example, the existing drafting device can be slightly modified, a groove is arranged on the baffle at one end of the hot roller, and then the mounting bracket is inserted into the groove for fixation;

[0013] The number of sliding blocks is 2, each of which is slidingly connected with one sliding rail, and the sliding direction is the length direction of the sliding rail;

[0014] The left and right ends of the connecting bridge are fixedly connected with one sliding block respectively;

[0015] The laser emitter and the laser receiver are located on the left and right sides of the connecting bridge respectively and oppositely, and the working principle is the triangulation method, the height of the laser emitter in the vertical direction is adjustable, which is suitable for hot rollers with different diameters and ensures that the incident laser is tangent to the hot roller;

[0016] The displacement sensor is arranged on the connecting bridge;

[0017] The laser receiver and the displacement sensor are connected with the processor simultaneously, the laser receiver is used to receive the laser emitted by the laser emitter and send the laser intensity signal to the processor, the displacement sensor is used to detect the displacement of the sliding block along the length direction of the sliding rail and send the displacement signal to the processor, and the processor is used to draw the displacement-laser intensity curve according to the received displacement signal and laser intensity signal;

[0018] The displacement-laser intensity curve can be used to judge the cleanliness of the hot roller; if the absolute value of the difference between the highest peak and the lowest peak on the displacement-laser intensity curve is less than or equal to 10% of the corresponding value of the highest peak, the hot roller is considered to have good cleanliness, otherwise the hot roller is considered to have poor cleanliness.

[0019] As a preferred technical solution:

[0020] The connecting bridge is a " " shaped support with an opening facing downward, which is composed of a vertical part a, a horizontal part and a vertical part b.

[0021] The vertical part a and the vertical part b are each fixedly connected with the upper surface of one sliding block.

[0022] The laser receiver is arranged on the vertical part a, the displacement sensor is located on the side of the vertical part a facing the mounting support, and the laser emitter is arranged on the vertical part b and the height thereof on the vertical part b is adjustable.

[0023] The working surface of the sliding block is attached with a heat-resistant and wear-resistant polymer gasket to ensure that no direct friction occurs between the sliding block and the sliding rail, facilitating smooth sliding of the sliding block.

[0024] The heat-resistant and wear-resistant polymer gasket is a polytetrafluoroethylene gasket, a polyformaldehyde gasket or a nylon gasket.

[0025] The two sliding rails are fixedly connected with the mounting support through screws.

[0026] The other end of each of the two sliding rails is provided with a limiting baffle to prevent the sliding block from sliding off.

[0027] The laser receiver is a laser receiver provided with a filter to prevent other light from affecting the detection result, further improving the accuracy and reliability of the detection result.

[0028] Beneficial effects:

[0029] The utility model realizes non-contact detection of the cleanliness of the surface of the high-temperature hot roller in the industrial yarn winding system, effectively solves the problem of hot roller cleanliness detection in a high-temperature environment, and guarantees detection efficiency and accuracy.

[0030] The height of the laser transmitter can be adjusted in the detection device, the design can adapt to hot rollers of different diameters, so that the incident laser is tangent to the surface of the hot roller, and therefore the applicability and flexibility of the detection device are improved; in addition, the laser receiver is provided with a built-in optical filter, which can effectively prevent interference of other light, and further improves the accuracy and reliability of the detection result. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 It is a structure schematic view of the hot roller cleanliness detection device of the utility model;

[0032] Figure 2 It is a section structure schematic view of the sliding block and sliding rail connection part in the hot roller cleanliness detection device of the utility model;

[0033] Figure 3 It is an installation position schematic view of the displacement sensor in the utility model;

[0034] Figure 4 It is a position schematic view of the hot roller cleanliness detection device of the utility model installed on the drafting device;

[0035] Wherein, 1-sliding rail, 2-sliding block, 3-connection bridge, 4-laser receiver, 5-laser transmitter, 6-installation support, 7-displacement sensor, 8-heat-resistant wear-resistant polymer gasket, 9-limiting baffle. DETAILED DESCRIPTION

[0036] The above scheme is further described below in conjunction with non-limiting examples, so as to help the relevant personnel in the field to more completely understand the utility model.It should be pointed out that the protection scope of the utility model should not be limited thereto.For the professional technicians, on the basis of not departing from the principle of the utility model, a number of adjustments and improvements can also be made, and these adjustments and improvements should also be covered in the protection scope of the utility model.

[0037] A hot roller cleanliness detection device, as shown in Figure 1 、 Figure 3 , includes installation support 6, sliding rail 1, sliding block 2, connection bridge 3, laser transmitter 5, laser receiver 4, displacement sensor 7 and processor.

[0038] The sliding rail 1 is horizontally arranged, the number is 2, the two sliding rails 1 are parallel to each other and symmetrically distributed left and right, the spacing between the two is greater than the diameter of the hot roller, and the length of the two is greater than the length of the hot roller; one end of the two sliding rails 1 is fixed perpendicularly on the installation support 6 through screws, and the other end of the two sliding rails 1 is provided with a limiting baffle 9;

[0039] The number of sliding blocks 2 is 2, each is slidably connected with one sliding rail 1, and the sliding direction is the length direction of the sliding rail 1;

[0040] As shown in Figure 2 , the working surface of the sliding block 2 is attached with a heat-resistant and wear-resistant polymer gasket 8, which is a polytetrafluoroethylene gasket, a polyformaldehyde gasket or a nylon gasket;

[0041] As shown in Figure 1 , the connecting bridge 3 is an open downward "∴" shaped bracket composed of vertical part a, horizontal part and vertical part b; the vertical part a and the vertical part b are each fixedly connected with the upper surface of one sliding block 2;

[0042] As shown in Figure 1 , the laser emitter 5 is arranged on the vertical part b and the height thereof on the vertical part b is adjustable, as shown in Figure 3 , the laser receiver 4 is arranged on the vertical part a and the displacement sensor 7 is located on the side of the vertical part a facing the mounting bracket 6; the laser receiver 4 is preferably a laser receiver provided with a filter;

[0043] The laser receiver 4 and the displacement sensor 7 are simultaneously connected with the processor, the laser receiver 4 is used for receiving the laser emitted by the laser emitter 5 and sending a laser intensity signal to the processor, the displacement sensor 7 is used for detecting the displacement of the sliding block 2 along the length direction of the slide rail 1 and sending a displacement signal to the processor, and the processor is used for drawing a displacement-laser intensity curve according to the received displacement signal and laser intensity signal, and judging the heat roller cleanliness according to the displacement-laser intensity curve: if the absolute value of the difference between the highest peak and the lowest peak on the displacement-laser intensity curve is less than or equal to 10% of the corresponding value of the highest peak, it is considered that the heat roller cleanliness is good, otherwise it is considered that the heat roller cleanliness is poor.

[0044] The use process of the detection device is as follows:

[0045] As shown in Figure 4 , the detection device is installed on the drafting device, then the sliding block 2 is moved to one end close to the outside of the heat roller, the laser emitter 5 is turned on, the height of the laser emitter 5 is adjusted to the position where it is tangent to the surface of the heat roller (or the heat roller blocks part of the laser), finally the heat roller is controlled to start rotating, while the sliding block 2 is manually pushed to the other end (as uniform as possible), and the cleaning degree of the heat roller can be judged according to the displacement-signal intensity curve output by the processor; in order to ensure the accuracy of the detection result, multiple detections can be repeated.

Claims

1. A hot roll cleanliness detection apparatus characterized by comprising: The installation support (6), the slide rail (1), the sliding block (2), the connecting bridge (3), the laser transmitter (5) and the laser receiver (4), the displacement sensor (7) and the processor are included. The slide rail (1) is horizontally arranged, the number is 2, the two slide rails (1) are parallel and symmetrically distributed, one end of the two slide rails (1) is vertically fixed on the installation support (6), the spacing between the two slide rails (1) is greater than the diameter of the hot roller, and the length of the two slide rails (1) is greater than the length of the hot roller. The number of the sliding block (2) is 2, each of which is slidably connected with one slide rail (1), and the sliding direction is the length direction of the slide rail (1). The left and right ends of the connecting bridge (3) are fixedly connected with one sliding block (2) respectively. The laser transmitter (5) and the laser receiver (4) are located on the left and right sides of the connecting bridge (3) respectively and oppositely, and the height of the laser transmitter (5) in the vertical direction is adjustable. The displacement sensor (7) is arranged on the connecting bridge (3). The laser receiver (4) and the displacement sensor (7) are connected with the processor simultaneously, the laser receiver (4) is used for receiving the laser emitted by the laser transmitter (5) and sending the laser intensity signal to the processor, the displacement sensor (7) is used for detecting the displacement of the sliding block (2) along the length direction of the slide rail (1) and sending the displacement signal to the processor, and the processor is used for drawing the displacement-laser intensity curve according to the received displacement signal and laser intensity signal.

2. The hot roll cleanliness detection device of claim 1, wherein The connecting bridge (3) is a " " shaped support with the opening downward, which is composed of a vertical part a, a horizontal part and a vertical part b. The vertical part a and the vertical part b are fixedly connected with the upper surfaces of the sliding blocks (2) respectively.

3. A hot roll cleanliness detection device according to claim 2, characterised in that The laser receiver (4) is arranged on the vertical part a, the displacement sensor (7) is located on the side of the vertical part a facing the installation support (6), and the laser transmitter (5) is arranged on the vertical part b and the height thereof on the vertical part b is adjustable.

4. The hot roll cleanliness detection device of claim 1, wherein The working surface of the sliding block (2) is pasted with a heat-resistant and wear-resistant high polymer gasket (8).

5. A hot roll cleanliness detection device according to claim 4, characterised in that The heat-resistant and wear-resistant high polymer gasket (8) is a polytetrafluoroethylene gasket, a polyformaldehyde gasket or a nylon gasket.

6. The hot roll cleanliness detection device of claim 1, wherein The two slide rails (1) are fixedly connected with the installation support (6) through screws.

7. The hot roll cleanliness detection apparatus of claim 1, wherein The other end of the two slide rails (1) is provided with a limiting baffle (9).

8. The hot roll cleanliness detection apparatus of claim 1, wherein The laser receiver (4) is a laser receiver provided with a filter.

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