CN219675855U

CN219675855U - Cable surface defect detection device

Info

Publication number: CN219675855U
Application number: CN202320511275.6U
Authority: CN
Inventors: 张瑞粉
Original assignee: Beijing Zhongxiao Changcheng Fire Safety Engineering Co ltd
Current assignee: Beijing Zhongxiao Changcheng Fire Safety Engineering Co ltd
Priority date: 2023-03-16
Filing date: 2023-03-16
Publication date: 2023-09-12
Anticipated expiration: 2033-03-16

Abstract

The utility model relates to the technical field of cable detection, in particular to a cable surface defect detection device, which comprises: the detection box is provided with a detection channel for the cable to pass through; the detection part is arranged in the detection box, and a detection area of the detection part and the detection channel are provided with an overlapping part and are used for acquiring a cable surface image in the detection area when the cable passes through the detection channel; and the two blowing parts are arranged in the detection box and are respectively arranged on two sides of the detection part. The utility model respectively sets a group of blowing devices on two sides of the visual detection device, and aims to blow attachments on the surface of the cable, so that the situation of false alarm caused by the attachments can be improved, and the utility model has the advantages of improving the judgment accuracy of users and reducing the manual workload.

Description

Cable surface defect detection device

Technical Field

The utility model relates to the technical field of cable detection, in particular to a cable surface defect detection device.

Background

Sheath extrusion is the last production procedure of optical cable, cable and cable, and is fast, and degree of automation is high, causes the flaw bad to the optical cable sheath very easily, if follow-up can not detect, get rid of the bad, will directly influence the quality of optical cable, cable product, flows and causes the quality complaint in the customer, brings very big loss for the production factory side. Thus, defect detection for the cable surface is gradually replaced by conventional manual observation by visual detection equipment.

At present, the detection of the defects on the surface of the cable generally obtains images of the surface of the cable around the cable through 2-3 CCD cameras, the bulges, pits, uneven diameters, scratches and the like of the cable can be detected, the detection accuracy is generally 0.1mm, but the actual detection result always shows the false alarm defects, and the inventor finds that the false alarm defects are unnecessary because the surface of the cable has adhered floating dust, so that a user hopes to reduce the occurrence of the unnecessary false alarm defects.

Disclosure of Invention

The utility model provides a cable surface defect detection device, which comprises:

the detection box is provided with a detection channel for the cable to pass through;

the detection part is arranged in the detection box, and a detection area of the detection part and the detection channel are provided with an overlapping part and are used for acquiring a cable surface image in the detection area when the cable passes through the detection channel;

the two blowing parts are arranged in the detection box and are respectively arranged on two sides of the detection part;

the air blowing component is communicated with the high-pressure air source, the direction of the cable entering the detection box is defined to be the positive direction, the first air blowing component is arranged to the opposite direction of the detection component, the air blowing direction of the first air blowing component is towards the opposite direction, the second air blowing component is arranged to the positive direction of the detection component, and the air blowing direction of the second air blowing component is towards the positive direction.

Preferably, the air blowing part includes an air blowing pipe, a connection pipe, and a connection hose, the connection pipe is disposed into the detection box, the air blowing pipe is at least partially disposed in the detection channel, and the connection hose is disposed outside the detection box.

Preferably, the air blowing pipe comprises a first air blowing pipe, a second air blowing pipe and a third air blowing pipe which are distributed in a central symmetry mode along the axis of the cable.

Preferably, the air blowing pipe forms an included angle of 30-45 degrees with the axis of the cable.

Preferably, the air blowing pipe comprises an air inlet end and an air outlet end, and the cross-sectional area of the air inlet end is larger than that of the air outlet end.

Preferably, the cross-section of the exhaust end is circular, elliptical, square or circular arc.

Preferably, the wire passing groove for accommodating the cable to pass through is formed between the two rollers of the roller group, and the wire passing groove is positioned on the extension line of the detection channel.

Compared with the prior art, the utility model has the advantages that:

the utility model respectively sets a group of blowing devices on two sides of the visual detection device, and aims to blow attachments on the surface of the cable, so that the situation of false alarm caused by the attachments can be improved, and the utility model has the advantages of improving the judgment accuracy of users and reducing the manual workload.

Drawings

The drawings are not intended to be drawn to scale. In the drawings, each identical or nearly identical component that is illustrated in various figures may be represented by a like numeral. For purposes of clarity, not every component may be labeled in every drawing. Embodiments of various aspects of the utility model will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic diagram of a cable surface defect detection device according to the present utility model;

FIG. 2 is a schematic view of the distribution of two air-blowing members within a test chamber according to the present utility model;

FIG. 3 is a schematic illustration of the distribution of the balloon wiring cable of the present utility model;

fig. 4 is a schematic view of the blowing state of the blowing tube according to the present utility model.

Detailed Description

For a better understanding of the technical content of the present utility model, specific examples are set forth below, along with the accompanying drawings.

As described in the background art, when foreign matters (e.g., filars, particles) adhere to the surface of the cable, in the imaging image of the CCD camera, the recognition software will be marked by cracks or protruding defects, so that the defects of the cable are increased, and based on these data, the user easily makes misjudgment on the quality of the cable.

Referring to fig. 1-2, the present utility model proposes a cable surface defect detecting device, which includes a detecting box 100, a detecting unit 10 and a blowing unit 20, it should be understood that the detecting unit 10 in the detecting box 100 includes a CCD camera and a light source for providing illumination for the camera, the CCD camera photographs the cable 200 entering the detecting box 100, acquires a surface image, identifies a defect through programming software in a computer, and marks a defect position for a user to view and judge from a PC end.

In an alternative embodiment, the CCD cameras are typically arranged in three sets, 120 apart, so that azimuthal viewing and detection of the outer wall of the cable 200 is ensured.

In connection with the illustration, the test cassette 100 is provided with a test channel 101 for the passage of the cable 200, the test channel 101 comprising a generally cylindrical portion and a portion extending downwardly from the cylindrical portion to the outer wall of the test cassette 100 to facilitate ready removal of the cable 200 from the test channel 101.

Further, the detection area of the detection component 10 has an overlapping portion with the detection channel 100, so that when the cable 200 passes through the detection channel 101, the cable 200 in the detection area can be photographed by the CCD camera, and the image of the cable surface is uploaded to the PC end.

Because the environment of the cable passing through the cable is not dust-free, and particles are easy to appear in the extrusion process, in order to reduce the interference of foreign matters on the surface of the cable, two air blowing components 20 are arranged in the detection box 100, and the two air blowing components 20 are respectively arranged on two sides of the detection component 10; the air blowing part 20 communicates with the high pressure air source 30 to define the direction in which the cable 200 enters the detection case 100 as a positive direction, the first air blowing part is provided to the opposite direction of the detection part 10 with its air blowing direction directed to the opposite direction, and the second air blowing part is provided to the positive direction of the detection part 10 with its air blowing direction directed to the positive direction.

In this way, when the cable is introduced into the detection box 100, the first air blowing member blows an air flow toward the surface of the cable 200 to detach particles and filaments attached to the surface of the cable, and the second air blowing member also blows an air flow toward the surface of the cable 200, thereby creating a high-pressure environment in the detection box 100 and preventing external particles from entering the detection box 100 from the outer periphery of the cable 200.

Referring to fig. 2 to 4, the blowing unit 20 includes a blowing pipe 21, a connection pipe 22, and a connection hose 23, the connection pipe 22 being disposed in the detection box 100, the blowing pipe 21 being at least partially disposed in the detection channel 101, and the connection hose 23 being disposed outside the detection box 100.

Wherein, the air blowing pipe 21, the connecting pipe 22 and the connecting hose 23 are sequentially connected, the connecting hose 23 is detachably connected to the air tap 102 outside the detection box 100, and when the first end of the connecting hose 23 is connected to the air tap 102, i.e. is communicated with the connecting pipe 22, the second end of the connecting hose 23 is connected to the high pressure air source 30.

In a preferred embodiment, the inflation tube 21 comprises a first inflation tube, a second inflation tube, and a third inflation tube that are centrally symmetrically distributed along the axis of the cable 200. Thus, the spacing between the first, second and third air-blowing pipes is 120 °, alternatively the first, second and third air-blowing pipes are connected to different connection pipes 22 and are connected together to one connection hose 23, supplied with air from the same connection hose 23.

Optionally, the inflation tube 21 is angled at 30-45 ° from the axis of the cable 200. Preferably 30 deg., the airflow zone 213 is formed to more easily wrap around the outer wall of the cable and to detach surface particles from the cable when the angle between the air lance 21 and the cable 200 is small.

Preferably, the blowpipe 21 includes an intake end 211 and an exhaust end 212, and the intake end 211 has a cross-sectional area larger than that of the exhaust end 212. In this way, the airflow discharged from the exhaust end 212 can be accelerated, and the peeling effect on the attached matter can be increased.

Alternatively, the cross-sectional shape of the exhaust end 212 is circular (illustrated as circular), oval, square, or circular arc. Better cleaning results are provided when the cross section of the exhaust end 212 more conforms to the cable surface profile.

In the above embodiment, the device further includes two pairs of roller sets 40 respectively disposed on the incoming line side and the outgoing line side of the detection box 100, and a wire passing groove for accommodating the cable 200 passing therethrough is formed between two rollers of the roller sets 40, where the wire passing groove is located on the extension line of the detection channel 101.

Thus, the cable 200 can be ensured to be positioned at the determined position of the detection channel 101, the cable is prevented from fluctuating or shaking, and the detection accuracy is improved.

In combination with the embodiment, the two sides of the visual detection device are respectively provided with the group of air blowing devices, so that attachments on the surface of the cable are blown, the situation of false alarm caused by the attachments can be improved, and the visual detection device has the advantages of improving the judgment accuracy of a user and reducing the manual workload.

While the utility model has been described with reference to preferred embodiments, it is not intended to be limiting. Those skilled in the art will appreciate that various modifications and adaptations can be made without departing from the spirit and scope of the present utility model. Accordingly, the scope of the utility model is defined by the appended claims.

Claims

1. A cable surface defect detection device, characterized by comprising:

a detection box (100), wherein the detection box (100) is provided with a detection channel (101) for a cable (200) to pass through;

a detection component (10) arranged in the detection box (100), wherein a detection area of the detection component (10) and the detection channel (101) are provided with an overlapped part, and the detection component is used for acquiring a surface image of a cable (200) in the detection area when the cable passes through the detection channel (101);

two air blowing members (20) provided in the detection box (100) to both sides of the detection member (10), respectively;

wherein the air blowing component (20) is communicated with the high-pressure air source (30), the direction of the cable (200) entering the detection box (100) is defined as a positive direction, the first air blowing component is arranged to the opposite direction of the detection component (10), the air blowing direction is towards the opposite direction, and the second air blowing component is arranged to the positive direction of the detection component (10), and the air blowing direction is towards the positive direction.

2. Cable surface defect detection device according to claim 1, characterized in that the blowing member (20) comprises a blowing pipe (21), a connecting pipe (22) and a connecting hose (23), the connecting pipe (22) being arranged into the detection box (100), the blowing pipe (21) being at least partly inside the detection channel (101), the connecting hose (23) being arranged outside the detection box (100).

3. The cable surface defect detection device according to claim 2, wherein the air lance (21) comprises a first air lance, a second air lance and a third air lance which are distributed in a central symmetry along the axis of the cable (200).

4. A cable surface defect detection device according to claim 3, characterized in that the air blowing pipe (21) is at an angle of 30-45 ° to the cable (200) axis.

5. The cable surface defect detection device according to claim 2 or 3 or 4, wherein the blowpipe (21) includes an intake end (211) and an exhaust end (212), the intake end (211) having a cross-sectional area larger than a cross-sectional area of the exhaust end (212).

6. The cable surface defect detection device according to claim 5, wherein the cross-sectional shape of the exhaust end (212) is circular, elliptical, square or circular arc.

7. The cable surface defect detection device according to claim 1, further comprising two pairs of roller groups (40) respectively arranged on an incoming line side and an outgoing line side of the detection box (100), wherein a wire passing groove for accommodating a cable (200) to pass through is formed between two rollers of the roller groups (40), and the wire passing groove is positioned on an extension line of the detection channel (101).