Defect detection device for steel wire woven Teflon hose

Abstract

The utility model relates to the technical field of Teflon hoses, and discloses a steel wire braided Teflon hose flaw detection device which comprises a flaw detection device and a Teflon hose, the Teflon hose penetrates through the front side and the rear side of the flaw detection device, the flaw detection device is arranged in the shape of a square frame, and the Teflon hose is arranged in the shape of a steel wire braided Teflon hose. Image acquisition devices are arranged on the periphery of the flaw detection device in a circumferential array mode, the number of the image acquisition devices is four, cameras are arranged in the image acquisition devices, and sliding devices are arranged in the image acquisition devices. By arranging the flaw detection device and arranging the four groups of image acquisition devices on the periphery of the flaw detection device in a circumferential array mode, the Teflon hose can be detected from four directions, the comprehensiveness of the detection effect is ensured, the phenomenon that the detection is incomplete due to the fact that the image acquisition devices are only arranged above the Teflon hose in a traditional device is avoided, and the detection efficiency is improved. The detection quality is influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of Teflon hoses, in particular to a steel wire braided Teflon hose defect detection device. Background Art

[0002] Teflon tube is a special tube made of polytetrafluoroethylene material after extrusion and sintering, drying, high-temperature sintering, shaping and other processes. It is widely used in important scientific and technological industries such as machinery, electronic appliances, automobiles, aerospace, chemicals, computers, electric heating, military, communications, etc., such as micro transformers.

[0003] In order to enhance the strength of Teflon hose, during the production and processing of Teflon braided hose, metal wire or other braided materials are wound around the Teflon hose in a certain interwoven structure in a circular braiding machine to form a Teflon braided hose. However, during the braiding process, slight differences in the interwoven structure may occur due to tension fluctuations and slight differences in the modulus of the metal wire material, causing defects in the braided structure and resulting in a decrease in hose performance. Therefore, during the braiding process, the braided hose needs to be inspected in real time. The existing detection device usually sets a collection camera just above the hose to collect images, and then compares the image with the defect detection library data to determine whether the braided hose has missing wires, broken wires, or overlapping wires. Since the braided hose is transported horizontally, the existing collection device can only collect data for a maximum of 180° on the surface of the braided hose, and cannot achieve all-round detection, which affects its detection effect. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the utility model provides a defect detection device for a steel wire braided Teflon hose.

[0006] (II) Technical solution

[0007] In order to solve the above problems, the utility model provides the following technical solutions: a steel wire braided Teflon hose defect detection device, comprising a defect detection device and a Teflon hose, the Teflon hose runs through the front and rear sides of the defect detection device, the defect detection device is arranged in a square frame, image acquisition devices are arranged in a circular array around the defect detection device, the number of the image acquisition devices is four, a camera is arranged inside the image acquisition device, a sliding device is arranged inside the image acquisition device, a lampshade is arranged inside the defect detection device, and a plurality of groups of LED light sources are installed on the surface of the lampshade.

[0008] Preferably, the camera is a CCD camera, and the camera is placed through a through hole opened at the contact portion between the image acquisition device and the defect detection device.

[0009] Preferably, the sliding device includes a telescopic cylinder, which is fixedly installed above the image acquisition device. The telescopic rod on the telescopic cylinder penetrates into the interior of the image acquisition device. A slide table is fixedly installed inside the image acquisition device. A slider is slidably connected to the slide table. The upper end of the slider is connected to the end of the telescopic rod, and one side of the slider is fixedly connected to the camera.

[0010] Preferably, the lampshade is made of frosted acrylic material; and a light shielding layer is provided on the inner side of the defect detection device.

[0011] Preferably, a clamping device is fixedly installed on the front and rear sides of the defect detection device by bolts, and the clamping device includes a fixing ring, which is arranged in a ring shape and has a plurality of threaded holes, which correspond to the threaded holes on the front and rear sides of the defect detection device, and a clamping mechanism is slidably connected to the inner side of the fixing ring, and the number of the clamping mechanisms is several groups, and the plurality of groups of clamping mechanisms are arranged in a circular array.

[0012] Preferably, the clamping mechanism comprises a sliding rod, the sliding rod is slidably connected inside the fixing ring, a support is fixedly mounted on one end of the sliding rod away from the fixing ring, and a roller is connected to the lower end of the support.

[0013] Preferably, the inner side of the roller contacts the surface of the Teflon hose, the roller is made of rubber material, and the surface of the roller is arranged in an inward arc, which can better fit the surface of the Teflon hose.

[0014] Preferably, a spring is sleeved on the slide rod, and the spring is fixedly connected between the inner side of the fixing ring and the support.

[0015] (III) Beneficial effects

[0016] Compared with the prior art, the utility model provides a wire braided Teflon hose defect detection device, which has the following beneficial effects:

[0017] 1. The steel wire braided Teflon hose defect detection device is provided with a defect detection device, and four groups of image acquisition devices are arranged in a circular array around the defect detection device. The Teflon hose can be inspected from four directions to ensure the comprehensiveness of the detection effect, thereby avoiding the phenomenon that the traditional device only sets the image acquisition device above the Teflon hose, resulting in incomplete detection and affecting its detection quality.

[0018] 2. The wire braided Teflon hose defect detection device clamps the Teflon hose through a clamping device to ensure that the Teflon hose is in a horizontal and stable state, avoids shaking during the detection process, and improves the detection quality. The clamping mechanism can be adjusted according to the diameter of the Teflon hose. The Teflon hose passes between several rollers, and the slide rod is extended and retracted by a spring according to the diameter of the Teflon hose. Teflon hoses of different diameters can be tightly clamped to ensure the stability of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of a steel wire braided Teflon hose defect detection device of the utility model;

[0020] Figure 2 It is a schematic diagram of the structure of the surface of the detection device of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the sliding device of the utility model;

[0022] Figure 4 It is a structural schematic diagram of the clamping device of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the clamping mechanism of the utility model.

[0024] In the figure: 1 image acquisition device, 11 telescopic cylinder, 12 telescopic rod, 13 slider, 14 slide table, 15 camera, 2 light shielding layer, 3 defect detection device, 4 LED light source, 5 lampshade, 6 clamping device, 61 fixing ring, 62 spring, 63 clamping mechanism, 631 slide rod, 632 support, 633 roller, 64 threaded hole, 100 Teflon hose. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 5The utility model provides a new technical solution: a steel wire braided Teflon hose defect detection device, comprising a defect detection device 3 and a Teflon hose 100, the Teflon hose 100 runs through the front and rear sides of the defect detection device 3, the defect detection device 3 is arranged in a square frame, and the image acquisition device 1 is arranged in a circular array around the defect detection device 3. The number of the image acquisition devices 1 is four groups, and a camera 15 is arranged inside the image acquisition device 1. The camera 15 is a CCD camera. The CCD camera has the advantages of fast imaging speed, clear image, small image deformation, etc. The camera 15 is connected to the image acquisition device 1 and the defect detection device 3. The image acquisition device 1 is placed in the through hole opened at the contact part of the defect detection device 3. A sliding device is arranged inside the image acquisition device 1, and the sliding device can drive the camera 15 to extend and retract inside the defect detection device 3 and the image acquisition device 1. The camera 15 goes deep into the defect detection device 3 to take pictures or videos of the Teflon hose 100 inside the defect detection device 3 and inspect the Teflon hose 100. An inspection door is arranged on the outside of the image acquisition device 1. The camera 15 is retracted into the image acquisition device 1 to inspect the camera 15 and replace the high-definition camera head. A lampshade 5 is arranged inside the defect detection device 3, and a plurality of groups of LED light sources 4 are installed on the surface of the lampshade 5.

[0027] See also Figure 5 In this embodiment, the sliding device includes a telescopic cylinder 11, which is fixedly installed above the image acquisition device 1. The telescopic rod 12 on the telescopic cylinder 11 penetrates into the image acquisition device 1. A slide table 14 is fixedly installed inside the image acquisition device 1. A slider 13 is slidably connected to the slide table 14. The upper end of the slider 13 is connected to the end of the telescopic rod 12, and one side of the slider 13 is fixedly connected to the camera 15. When in use, the telescopic cylinder 11 is started, and the telescopic rod 12 is driven to extend and retract by the telescopic cylinder 11. The telescopic rod 12 is extended and retracted inside the image acquisition device 1, thereby driving the slider 13 to move on the slide table 14, and then driving the camera 15 to move synchronously. The distance between the head of the camera 15 and the surface of the Teflon hose 100 can be adjusted according to the diameter of the Teflon hose 100, so that the camera 15 is focused on the surface of the Teflon hose 100, thereby ensuring the shooting effect of the camera 15 and the detection effect of the Teflon hose 100.

[0028] In this embodiment, the lampshade 5 is made of frosted acrylic material to prevent strong light from directly shining on the steel wire braided layer on the surface of the Teflon hose 100 and causing exposure, thereby affecting the photographing effect of the camera 15 and ensuring the photographing effect of the camera 15 .

[0029] In this embodiment, a light shielding layer 2 is provided inside the defect detection device 3 , and the light shielding layer 2 can absorb the light scattered by the LED light source 4 to avoid refraction of the light source.

[0030] See also Figure 2 and Figure 4 The front and rear sides of the defect detection device 3 are fixed with a clamping device 6 by bolts, and the clamping device 6 includes a fixing ring 61, and the fixing ring 61 is arranged in a ring shape. A plurality of threaded holes 64 are provided on the fixing ring 61, and the threaded holes 64 correspond to the threaded holes provided on the front and rear sides of the defect detection device 3. The clamping device 6 and the defect detection device 3 are fixedly connected by bolts, and a clamping mechanism 63 is slidably connected to the inner side of the fixing ring 61. The number of the clamping mechanisms 63 is several groups, and the several groups of clamping mechanisms 63 are arranged in a circular array.

[0031] See also Figure 4 and Figure 5 The clamping mechanism 63 includes a slide bar 631, which is slidably connected inside the fixing ring 61. A support 632 is fixedly installed at one end of the slide bar 631 away from the fixing ring 61. A roller 633 is connected to the lower end of the support 632. The inner side of the roller 633 contacts the surface of the Teflon hose 100. The roller 633 is made of rubber material. The surface of the roller 633 is set in an inward arc, which can better fit the surface of the Teflon hose 100 and avoid damage to the surface of the Teflon hose 100.

[0032] In this embodiment, a spring 62 is sleeved on the slide bar 631, and the spring 62 is fixedly connected between the inner side of the fixing ring 61 and the support 632; when in use, the Teflon hose 100 first passes through the front and rear sides of the defect detection device 3, and the Teflon hose 100 is clamped by the clamping device 6 to ensure that the Teflon hose 100 is in a horizontal and stable state, avoiding shaking during the detection process and improving the detection quality. By setting the clamping mechanism 63, it can be adjusted according to the diameter of the Teflon hose 100, and the Teflon hose 100 passes between several rollers 633. The slide bar 631 is extended and retracted by the spring 62 according to the diameter of the Teflon hose 100, and Teflon hoses 100 of different diameters can be tightly clamped to ensure the stability of the detection.

[0033] Working principle: When the steel wire braided Teflon hose defect detection device is used, the Teflon hose 100 woven by the braiding machine first passes through the front and rear sides of the defect detection device 3, and the Teflon hose 100 is clamped by the clamping device 6. The clamping mechanism 63 is set to adjust according to the diameter of the Teflon hose 100. The Teflon hose 100 passes between a number of rollers 633, and the slide bar 631 is extended and retracted by the spring 62 according to the diameter of the Teflon hose 100. Teflon hoses 100 of different diameters can be tightly clamped, and then the position of the camera 15 is adjusted by the sliding device to focus, and the extension and retraction are adjusted. The retracting cylinder 11 is started, and the telescopic rod 12 is extended and retracted by the telescopic cylinder 11. The telescopic rod 12 is extended and retracted inside the image acquisition device 1, thereby driving the slider 13 to move on the slide 14, and then driving the camera 15 to move synchronously. The distance between the head of the camera 15 and the surface of the Teflon hose 100 can be adjusted according to the diameter of the Teflon hose 100, so that the camera 15 and the surface of the Teflon hose 100 are focused, and the surface of the Teflon hose 100 is photographed and filmed by the camera 15. Then, the photos are transmitted back to the detection system through a wireless transmission device for comparison and analysis, and the surface of the Teflon hose 100 is inspected to detect whether there are missing wires, broken wires, or overlapping wires.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wire braided Teflon hose defect detection device, comprising a defect detection device (3) and a Teflon hose (100), characterized in that: The Teflon hose (100) passes through the front and rear sides of the defect detection device (3); the defect detection device (3) is arranged in a square frame; image acquisition devices (1) are arranged in a circular array around the defect detection device (3); the number of the image acquisition devices (1) is four; a camera (15) is arranged inside the image acquisition device (1); a sliding device is arranged inside the image acquisition device (1); a lampshade (5) is arranged inside the defect detection device (3); and a plurality of groups of LED light sources (4) are installed on the surface of the lampshade (5).

2. A wire braided Teflon hose defect detection device according to claim 1, characterized in that: The camera (15) is a CCD camera, and the camera (15) is placed through a through hole opened at the contact position between the image acquisition device (1) and the defect detection device (3).

3. The steel wire braided Teflon hose defect detection device according to claim 1, characterized in that: The sliding device comprises a telescopic cylinder (11), the telescopic cylinder (11) is fixedly installed above the image acquisition device (1), a telescopic rod (12) on the telescopic cylinder (11) penetrates into the image acquisition device (1), a slide table (14) is fixedly installed inside the image acquisition device (1), a slider (13) is slidably connected to the slide table (14), an upper end of the slider (13) is connected to the end of the telescopic rod (12), and one side of the slider (13) is fixedly connected to a camera (15).

4. The steel wire braided Teflon hose defect detection device according to claim 1, characterized in that: The lampshade (5) is made of frosted acrylic material; a light shielding layer (2) is provided on the inner side of the defect detection device (3).

5. The steel wire braided Teflon hose defect detection device according to claim 1, characterized in that: The front and rear sides of the defect detection device (3) are fixedly provided with a clamping device (6) by bolts, and the clamping device (6) comprises a fixing ring (61), and the fixing ring (61) is arranged in a ring shape, and a plurality of threaded holes (64) are provided on the fixing ring (61), and the threaded holes (64) correspond to the threaded holes provided on the front and rear sides of the defect detection device (3), and a clamping mechanism (63) is slidably connected to the inner side of the fixing ring (61), and the number of the clamping mechanisms (63) is several groups, and the several groups of clamping mechanisms (63) are arranged in a circular array.

6. A wire braided Teflon hose defect detection device according to claim 5, characterized in that: The clamping mechanism (63) comprises a sliding rod (631) which is slidably connected inside the fixing ring (61); a support (632) is fixedly mounted on one end of the sliding rod (631) away from the fixing ring (61); and a roller (633) is connected to the lower end of the support (632).

7. A wire braided Teflon hose defect detection device according to claim 6, characterized in that: The inner side of the roller (633) contacts the surface of the Teflon hose (100); the roller (633) is made of rubber material; and the surface of the roller (633) is arranged in an inward arc so as to better fit the surface of the Teflon hose (100).

8. The steel wire braided Teflon hose defect detection device according to claim 6, characterized in that: A spring (62) is sleeved on the sliding rod (631), and the spring (62) is fixedly connected between the inner side of the fixing ring (61) and the support (632).

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