A dust removal device, equipment, and method for an image acquisition equipment used in circular looms.

Abstract

This invention relates to a dust removal device, equipment, and method for an image acquisition device used on a circular loom. The image acquisition device is used to acquire fabric images during the weaving process for defect detection. The image acquisition device includes a camera and a light source located at the front end of the camera. The device includes: a dustproof plate made of transparent material, which is fixedly covered on the end face of the light source away from the camera. The dustproof plate is sealed at an opening on the light source corresponding to the camera lens, thereby sealing the front end of the camera lens within the coverage area of ​​the dustproof plate; and a dust scraping assembly, which is parallel to the dustproof plate and rotatably connected to the surface of the dustproof plate. The dust scraping assembly is used to scrape off cotton lint and oil stains adhering to the dustproof plate. By adding a dust removal device, the dust removal operation of the camera lens is simplified, effectively improving the efficiency of fabric detection by the image acquisition device during the weaving process.

Description

Technical Field

[0001] This invention relates to the field of circular loom technology, and in particular to a dust removal device, equipment, and method for an image acquisition device used in circular looms. Background Technology

[0002] The circular loom weaves fabric by interlacing flat yarns into warp and weft. The circular loom has many spindles on its warp frame. A specified number of warp yarns are used based on the width of the fabric and the width of the flat yarns. Before entering the loom, the warp yarns are crossed by the warp frame. As the warp yarns are automatically fed through the warp feed mechanism, the weft yarns pass through the weft shuttle in a circular motion within the crossed openings, weaving the fabric into tubes. Furthermore, during operation, an image acquisition device needs to be installed inside the circular loom to observe defects in the produced fabric. Defects include snags, uneven knitting, and oil stains, allowing for immediate machine shutdown and repair when defects are detected.

[0003] In textile workshops where weaving operations take place, mechanisms are designed to periodically spray oil mist onto the needles to prevent them from rusting. However, the air in textile workshops also contains a lot of cotton lint. This oil mist and lint constantly fall onto the camera lenses and other optical equipment of image acquisition devices. Over time, this accumulation affects the clarity of the images captured by the camera and the accuracy of image recognition. Regular manual wiping of the oil and lint from the lenses is necessary. Because textile factories have many circular looms, manual wiping takes a considerable amount of time. Furthermore, since the camera is located in the middle of the circular loom, cleaning the camera lens requires additional tools without disassembling the camera, making the wiping work labor-intensive.

[0004] Therefore, there is a need to provide a dust removal device that can conveniently and quickly complete the dust removal operation of the camera and effectively prevent dirt from adhering to the camera lens to solve the above-mentioned technical problems. Summary of the Invention

[0005] To address the aforementioned technical problems, this invention provides a dust removal device for an image acquisition equipment used in circular looms. This solves the problems of inconvenient dust removal for cameras located inside the circular loom, and the ease with which dirt accumulates on cameras exposed to the textile environment, requiring frequent cleaning.

[0006] The technical effects of this invention are achieved through the following:

[0007] A dust removal device for an image acquisition system used in a circular loom, wherein the image acquisition system is used to acquire fabric images during the weaving process of the circular loom for defect detection, the image acquisition system includes a camera and a light source disposed in front of the camera, and the dust removal device includes:

[0008] A dustproof plate, which is made of transparent material, is fixedly covered on the end face of the light source away from the camera. The dustproof plate is sealed at the opening on the light source corresponding to the camera lens, so as to seal the front end of the camera lens within the coverage area of ​​the dustproof plate.

[0009] A dust scraper assembly is provided, which is arranged parallel to the dustproof plate and is rotatably connected to the surface of the dustproof plate. The dust scraper assembly is used to scrape off cotton lint and oil stains adhering to the dustproof plate.

[0010] Furthermore, the dust removal assembly includes a fixing member, a rotating member, and a scraper. The fixing member is fixedly disposed on the edge of the dustproof plate. One end of the rotating member is rotatably connected to the fixing member, and the other end is fixedly connected to the scraper. The rotating member rotates around the fixing member to complete the dust removal process of the scraper on the dustproof plate corresponding to the coverage area of ​​the camera lens.

[0011] Furthermore, it also includes a motor and a control device. The output shaft of the motor is fixedly connected to the rotating component, and the control device is used to control the motor to drive the rotating component to rotate. By adding a dust removal device to the existing image acquisition equipment, automatic dust removal of the camera lens can be performed at any time, replacing manual operation, reducing dust removal time, effectively improving the efficiency of fabric inspection by the image acquisition equipment and the production efficiency of the circular loom during the textile process, while reducing wear on the camera lens and increasing the lens's service life.

[0012] Furthermore, it also includes an annular sealing ring, one end of which is fitted onto the camera lens, and the other end abuts against the light source to complete the sealing function of the camera lens. By fitting the sealing ring at the gap between the camera and the light source, it effectively prevents dirt, lint, oil mist, and other contaminants from entering and contaminating the camera lens through the gap. Combined with a dustproof plate that seals the front end of the camera lens, it achieves a sealing effect for the entire enclosed space of the camera lens, effectively ensuring that the camera lens within the enclosed space is not contaminated by dirt.

[0013] Furthermore, the dustproof panel is made of plexiglass material.

[0014] In addition, an image acquisition device for a circular loom is provided, including a camera, a light source, a support and fixing device, and the aforementioned dust removal device. The camera and the light source, on which the dust removal device is installed, are fixedly mounted on the support beam of the circular loom through the support and fixing device, and the shooting direction of the camera is perpendicular to the main shaft of the circular loom.

[0015] Furthermore, the support and fixing device includes a suspension structure, a camera fixing bracket, and a light source fixing bracket. The suspension structure includes a radially arranged crossbeam. The camera fixing bracket is fixed to one end of the crossbeam near the main shaft of the circular loom, and the light source fixing bracket is installed on the side of the camera fixing bracket away from the main shaft.

[0016] Furthermore, the light source mounting bracket is movable along the extension direction of the crossbeam to adjust the distance between the light source and the camera.

[0017] Additionally, a dust removal method for an image acquisition device for a circular loom is provided. This method is based on the aforementioned dust removal device for the image acquisition device of a circular loom. The dust removal assembly includes a fixed component, a rotating component, and a scraper, comprising:

[0018] The dustproof plate is attached and fixed to the end face of the light source away from the camera, so that the dustproof plate seals the front end of the camera lens within the range corresponding to the opening of the light source.

[0019] Install the dust scraper assembly in the corresponding position on the dustproof plate;

[0020] The camera and the light source equipped with the dustproof plate and the dust scraping assembly are fixed on the support beam of the circular loom at a preset distance, and the shooting direction of the camera is perpendicular to the main shaft of the circular loom.

[0021] Based on a preset cycle, the rotating component is controlled to scrape off cotton lint and oil stains adhering to the dustproof plate.

[0022] Further, the camera and the light source equipped with the dustproof plate and the dust scraper assembly are fixed at a preset distance on the support beam of the circular loom, and the shooting direction of the camera is perpendicular to the main shaft of the circular loom. Then, the process includes:

[0023] One end of the sealing ring is fitted onto the camera lens, while the other end abuts against the light source, thereby sealing the camera lens from the rear end of the opening in the light source.

[0024] The sealing effect on the entire camera lens is achieved by combining the sealing operation of the dustproof plate at the front end of the light source opening.

[0025] As described above, the present invention has the following beneficial effects:

[0026] 1) By adding a dust removal device to the existing image acquisition equipment, the camera lens can be automatically dusted at any time, replacing manual operation, reducing dust removal time, effectively improving the efficiency of the image acquisition equipment in detecting fabrics and the production efficiency of the circular loom in the textile process, while reducing wear on the camera lens and increasing the lens's service life.

[0027] 2) By installing a sealing ring in the gap between the camera and the light source, it is possible to prevent dirt such as dust, cotton lint and oil mist from entering and contaminating the camera lens. Combined with a dustproof plate that seals the front end of the camera lens, the entire surrounding space of the camera lens is sealed, effectively ensuring that the camera lens in the enclosed space is not contaminated by dirt. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the present invention, the accompanying drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are merely some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0029] Figure 1 This is a schematic diagram of the dust-scraping assembly provided in the embodiments of this specification in its initial state;

[0030] Figure 2 This is a side view of the dust scraper assembly after the rotating component has rotated a set angle, as provided in the embodiments of this specification.

[0031] Figure 3 A schematic diagram of the assembly structure of the dustproof plate and the light source provided in the embodiments of this specification;

[0032] Figure 4 This is a schematic diagram of the dust removal device for removing the dust scraper assembly provided in the embodiments of this specification;

[0033] Figure 5 for Figure 4 A schematic diagram of a dust removal device that removes the sealing ring;

[0034] Figure 6 This is a schematic diagram of the installation structure of the dust removal device provided in the embodiments of this specification on a circular loom.

[0035] The corresponding reference numerals in the figure are as follows:

[0036] 1. Dustproof plate; 2. Light source; 3. Camera; 4. Fixing component; 5. Rotating component; 6. Scraper; 7. Sealing ring; 8. Suspension structure; 81. C-shaped suspension component; 82. Longitudinal beam; 83. Crossbeam; 9. Camera mounting bracket; 10. Light source mounting bracket; 11. Main shaft; 12. Syringe; 13. Support beam. Detailed Implementation

[0037] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0038] It should be noted that the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0039] Example 1:

[0040] like Figure 1-6 As shown in the embodiment of this specification, a dust removal device for an image acquisition device used in a circular loom is provided. The image acquisition device is used to acquire weaving images of the fabric during the circular loom weaving process for defect detection. The image acquisition device includes a camera 3 and a light source 2 located at the front end of the camera 3. The dust removal device includes:

[0041] Dustproof plate 1 is made of transparent abrasion-resistant material. Dustproof plate 1 is fixedly covered on the end face of the light source 2 away from the camera 3. Dustproof plate 1 is sealed in the opening on the light source 2 corresponding to the lens of the camera 3, so as to seal the front end of the lens of the camera 3 within the coverage area of ​​the dustproof plate 1.

[0042] The dust scraper assembly is arranged parallel to the dustproof plate 1 and is rotatably connected to the surface of the dustproof plate 1. The dust scraper assembly is used to scrape off cotton lint and oil stains attached to the dustproof plate 1.

[0043] In this embodiment, the camera 3 is located in the opposite direction to the illumination direction of the light source 2. The light source 2 has an opening that matches the camera lens. The camera lens is located close to the back of the opening, so that when the image acquisition device acquires images of the fabric, the shooting direction of the camera 3 is consistent with the illumination direction of the light source 1.

[0044] Specifically, such as Figure 6 As shown, in the horizontal direction, the axis of the light source 2 overlaps with the axis of the camera lens. Both the camera 3 and the light source 2 are fixedly mounted inside the fabric of the circular loom, and the shooting direction of the camera 3 and the illumination direction of the light source 2 are both located in the radial direction corresponding to the main shaft 11 of the circular loom, that is, in the radial direction of the cylinder 12 of the circular loom. The distance between the camera 3 and the fabric needs to ensure the clarity of the fabric image captured by the camera 3.

[0045] In the vertical direction, the image acquisition device is set in an easily accessible location within the circular loom, ensuring that after installation, the image acquisition device and related wiring harness do not interfere with the rotating mechanism within the circular loom.

[0046] It should be noted that in the existing technology, when image acquisition equipment is used to detect defects in the produced fabric in real time during the fabric weaving process, the camera lens is exposed to the textile production environment. Dust, oil, and other contaminants can fall onto the camera lens from in front of or behind the light source opening, affecting the clarity of the image data acquired by the camera. This requires frequent cleaning of the camera lens, which causes severe wear and tear. At the same time, because the camera is fixed inside the circular loom, manual dust removal is difficult and time-consuming, seriously affecting the normal production efficiency of the circular loom.

[0047] Therefore, by adding a dust removal device to the existing image acquisition equipment, the camera lens can be automatically dusted at any time, replacing manual operation, reducing dust removal time, effectively improving the efficiency of the image acquisition equipment in inspecting fabrics and the production efficiency of the circular loom during the textile process, while reducing wear on the camera lens and increasing the lens's service life.

[0048] Specifically, the light source 2 has a rectangular structure, and the dustproof plate 1 matches the size of the light source 2. The dustproof plate 1 is fixed to the light source 2 by locking or adhesive, thus sealing the camera lens from the front of the camera 3 and preventing dust, oil, etc., from entering from the front opening of the light source and contaminating the camera lens. The direction from the rear end to the front end of the camera 3 is the shooting direction of the camera 3, and the direction from the rear end to the front end of the light source 2 is the illumination direction of the light source 2.

[0049] Among them, the dustproof plate 1 is made of plexiglass material. Plexiglass material is sturdy and durable. If it is worn out during subsequent dust removal work and needs to be replaced, the cost is low.

[0050] Preferably, the dust removal assembly includes a fixing member 4, a rotating member 5, and a scraper 6. The fixing member 4 is fixedly disposed on the edge of the dustproof plate 1. One end of the rotating member 5 is rotatably connected to the fixing member 4, and the other end is fixedly connected to the scraper 6. The rotating member 5 rotates around the fixing member 4 to complete the dust removal process of the scraper 6 on the dustproof plate 1 corresponding to the coverage area of ​​the camera 3 lens.

[0051] Among them, such as Figure 2 As shown, the rotating component 5 is located at the rear end of the scraper 6, and the front end of the scraper 6 is flat against the dustproof plate 1. The side of the scraper 6 closest to the dustproof plate 1 is the front end of the scraper 6, and the side furthest from the dustproof plate 1 is the rear end of the scraper 6.

[0052] Preferably, the dust scraping assembly further includes a motor and a control device, wherein the output shaft of the motor and the rotating component 5 are fixedly connected, and the control device is used to drive the rotating component 5 to rotate by controlling the motor.

[0053] Specifically, the fixing member is located at one of the top corners of the dustproof plate 1 with a rectangular structure, and the rotating member 5 is a rotating arm. Under the initial conditions, the rotating member 5 is located on one side adjacent to the top corner and the scraper 6 is parallel to this side. After the rotating member 5 rotates by a set angle, the scraper 6 is parallel to the other side of the top corner.

[0054] In this embodiment, the control device is located outside the circular loom. After the operator presses the dust removal button on the control device, the motor electrically connected to the control device starts to work. The motor drives the rotating arm to rotate and swing back and forth at 90°. The scraper 6 fixed at the front end of the rotating arm moves back and forth on the dustproof plate 1 to scrape away the dust, cotton lint or oil stains on the surface of the dustproof plate 1 to meet the clarity requirements of the image captured by the camera.

[0055] By setting up an electric dust removal structure consisting of a dust scraping component, a motor, and a control device, the camera lens can be automatically wiped at any time according to the clarity of the image captured by the fabric. The dust removal operation is simple and convenient, effectively reducing the maintenance cost of the image acquisition equipment and improving production efficiency.

[0056] Preferably, it also includes an annular sealing ring 7, one end of which is fitted onto the lens of the camera 3, and the other end of which abuts against the light source 2 to complete the sealing function of the lens of the camera 3. The sealing ring is made of silicone material.

[0057] By installing a sealing ring 7 in the gap between the camera 3 and the light source 2, the problem of easy contamination of the camera lens is improved by the light source 2 pointing upwards from the opposite direction of illumination. This effectively prevents dirt such as dust, cotton lint, and oil mist from entering and contaminating the camera lens from the gap. Combined with a dustproof plate 1 that seals the front end of the camera lens, the entire enclosed space of the camera lens is sealed, effectively ensuring that the camera lens in the enclosed space is not contaminated by dirt.

[0058] This specification provides a dust removal method for an image acquisition device used in a circular loom, which is based on the dust removal device of the image acquisition device for a circular loom in Embodiment 1, and includes:

[0059] The dustproof plate 1 is attached and fixed to the end face of the light source 2 away from the camera 3, so that the dustproof plate 1 seals the front end of the lens of the camera 3 within the range corresponding to the opening of the light source 2.

[0060] Install the dust scraper assembly at the corresponding position on the dustproof plate 1;

[0061] The camera 3 and the light source 2, which is equipped with the dustproof plate 1 and the dust scraping assembly, are fixed at a preset distance on the support beam 13 of the circular loom, and the shooting direction of the camera 3 is perpendicular to the main shaft 11 of the circular loom.

[0062] Based on a preset cycle, the rotating component 5 scrapes off cotton lint and oil stains adhering to the dustproof plate 1.

[0063] In one specific embodiment, the camera 3 and the light source 2, which is equipped with the dustproof plate 1 and the dust scraping assembly, are fixed at a preset distance on the support beam 13 of the circular loom, and the shooting direction of the camera 3 is perpendicular to the main shaft 11 of the circular loom. The process then includes:

[0064] One end of the sealing ring 7 is fitted onto the lens of the camera 3, while the other end abuts against the light source 2, so as to seal the lens of the camera 3 from the rear end of the opening of the light source 2.

[0065] The sealing effect on the entire lens of the camera 3 is achieved by combining the sealing operation of the dustproof plate 1 at the front end of the opening of the light source 2.

[0066] Example 2:

[0067] like Figure 6 As shown in the figure, this specification provides an image acquisition device for a circular loom, including a camera 3, a light source 2, a support and fixing device, and the dust removal device in embodiment 1. The camera 3 and the light source 2, which are equipped with the dust removal device, are fixedly mounted on the support beam 13 of the circular loom through the support and fixing device, and the shooting direction of the camera 3 is perpendicular to the main shaft 11 of the circular loom.

[0068] Preferably, the support and fixing device includes a suspension structure 8, a camera fixing bracket 9, and a light source fixing bracket 10. The suspension structure 8 includes a radially arranged crossbeam 83. The camera fixing bracket 9 is fixed at one end of the crossbeam near the main shaft 11 of the circular loom. The light source fixing bracket 10 is installed on the side of the camera fixing bracket 9 away from the main shaft 11.

[0069] Preferably, the light source fixing bracket 10 is movable along the extension direction of the crossbeam 83 to adjust the distance between the light source 2 and the camera 3.

[0070] Specifically, the suspension structure includes:

[0071] C-shaped suspension component 81, which is detachably suspended on the support beam 13 of the circular loom;

[0072] The longitudinal beam 82 and the crossbeam 83 are provided. One end of the longitudinal beam 82 is fixedly connected to the crossbeam 83, and the other end is fixedly connected to the C-shaped suspension 81. The extension direction of the longitudinal beam 82 is parallel to the main shaft 11 of the circular loom. The crossbeam 83 is located in the horizontal direction, and the extension direction of the crossbeam 83 is perpendicular to the main shaft 11 of the circular loom. The end of the crossbeam 83 away from the longitudinal beam 82 is used to install and fix the image acquisition device.

[0073] After the camera mounting bracket 9 and the light source mounting bracket 10 are fixed on the crossbeam, the shooting direction of the camera 3 and the illumination direction of the light source 2 are both located in the radial direction of the syringe 12.

[0074] In this embodiment, the light source fixing bracket 10 is fixed in the slot of the crossbeam 83 by bolts. The slot has a certain length in the extension direction of the crossbeam 83, so that by changing the fixing position of the light source fixing bracket 10 on the crossbeam 83, the distance between the light source 2 and the camera 3 can be adjusted to ensure that the light source 2 and the camera 3 have a suitable relative position.

[0075] While the present invention has been described through preferred embodiments, it is not limited to the embodiments described herein, and various changes and modifications are made without departing from the scope of the invention.

[0076] In this document, the directional terms such as front, back, top, and bottom are defined based on the location of the components in the accompanying drawings and their relative positions to each other, solely for the purpose of clarity and convenience in expressing the technical solution. It should be understood that the use of these directional terms should not limit the scope of protection claimed in this application.

[0077] Where there is no conflict, the above embodiments and features described herein can be combined with each other.

[0078] The above description is merely a preferred embodiment of the present invention and should not be construed as limiting the scope of the invention. Therefore, any equivalent variations made in accordance with the claims of the present invention are still within the scope of the present invention.

Claims

1. A dust removal device for an image acquisition device used in a circular loom, the image acquisition device being used to acquire fabric images during the circular loom weaving process for defect detection, the image acquisition device comprising a camera (3) and a light source (2) disposed at the front end of the camera (3), characterized in that, The dust removal device includes: A dustproof plate (1) is made of transparent material. The dustproof plate (1) is fixedly covered on the end face of the light source (2) away from the camera (3). The dustproof plate (1) is sealed in the opening on the light source (2) corresponding to the lens of the camera (3) to seal the front end of the lens of the camera (3) within the coverage area of ​​the dustproof plate (1). The distance between the light source (2) and the camera (3) is adjustable. A dust scraper assembly is arranged parallel to the dustproof plate (1). The dust scraper assembly is rotatably connected to the surface of the dustproof plate (1). The dust scraper assembly is used to scrape off cotton lint and oil stains attached to the dustproof plate (1). An annular sealing ring (7) is fitted at one end onto the lens of the camera (3) and at the other end against the light source (2) after the distance has been adjusted.

2. The dust removal device for the image acquisition equipment of the circular loom according to claim 1, characterized in that, The dust removal assembly includes a fixing member (4), a rotating member (5), and a scraper (6). The fixing member (4) is fixedly disposed on the edge of the dustproof plate (1). One end of the rotating member (5) is rotatably connected to the fixing member (4), and the other end is fixedly connected to the scraper (6). The rotating member (5) rotates around the fixing member (4) to complete the dust removal process of the scraper (6) on the dustproof plate (1) corresponding to the coverage area of ​​the camera (3) lens.

3. The dust removal device for the image acquisition equipment of a circular loom according to claim 2, characterized in that, It also includes a motor and a control device, wherein the output shaft of the motor is fixedly connected to the rotating part (5), and the control device is used to drive the rotating part (5) to rotate by controlling the motor.

4. The dust removal device for the image acquisition equipment of the circular loom according to claim 1, characterized in that, The dustproof panel (1) is made of plexiglass material.

5. An image acquisition device for a circular loom, comprising a camera (3), a light source (2), a support and fixing device, and a dust removal device as described in any one of claims 1-4, wherein the camera (3) and the light source (2) on which the dust removal device is installed are fixedly mounted on the support beam (13) of the circular loom by the support and fixing device, and the shooting direction of the camera (3) is perpendicular to the main shaft (11) of the circular loom.

6. The image acquisition device for a circular loom according to claim 5, characterized in that, The support and fixing device includes a suspension structure (8), a camera fixing bracket (9), and a light source fixing bracket (10). The suspension structure (8) includes a radially arranged crossbeam. The camera fixing bracket (9) is fixed to one end of the crossbeam near the main shaft (11) of the circular loom. The light source fixing bracket (10) is installed on the side of the camera fixing bracket (9) away from the main shaft (11).

7. The image acquisition device for a circular loom according to claim 6, characterized in that, The light source fixing bracket (10) is movable along the extension direction of the crossbeam to adjust the distance between the light source (2) and the camera (3).

8. A dust removal method for an image acquisition device for a circular loom, the method being implemented based on a dust removal device for an image acquisition device for a circular loom as described in any one of claims 1-4, wherein the dust scraping assembly comprises a fixed member (4), a rotating member (5), and a scraper (6), characterized in that, include: The dustproof plate (1) is attached and fixed to the end face of the light source (2) away from the camera (3) so that the dustproof plate (1) seals the front end of the camera (3) lens within the range corresponding to the opening of the light source (2); Install the dust scraper assembly at the corresponding position on the dustproof plate (1); The camera (3) and the light source (2) equipped with the dustproof plate (1) and the dust scraping assembly are fixed at a preset distance on the support beam (13) of the circular loom, and the shooting direction of the camera (3) is perpendicular to the main shaft (11) of the circular loom. Based on a preset cycle, the rotating component (5) scrapes off cotton lint and oil stains adhering to the dustproof plate (1).

9. The dust removal method for the image acquisition device for a circular loom according to claim 8, wherein the dust removal device further includes an annular sealing ring (7), characterized in that, The camera (3) and the light source (2) equipped with the dustproof plate (1) and the dust scraper assembly are fixed at a preset distance on the support beam (13) of the circular loom, and the shooting direction of the camera (3) is perpendicular to the main shaft (11) of the circular loom. Then the following steps are taken: One end of the annular sealing ring (7) is fitted onto the lens of the camera (3), while the other end abuts against the light source (2) to seal the lens of the camera (3) from the rear end of the opening in the light source (2). The sealing effect on the entire lens of the camera (3) is achieved by combining the sealing operation of the dustproof plate (1) at the front end of the opening of the light source (2).

Images