Visual inspection device for coating quality of expansion raw material belt and coating equipment

Abstract

The invention provides a visual detection device for coating quality of an expanded raw material belt and coating equipment, and belongs to the technical field of visual detection. The detection assembly provided by the invention is used for acquiring a material image; the other end of the lifting mechanism is connected with the connecting plate; the connecting shaft is rotationally arranged on the connecting plate; the second motor is fixedly arranged on the connecting shaft and is connected with the connecting shaft; the annular guide rail is fixedly arranged on the connecting plate, and the side, facing materials, of the annular guide rail is a linear section. The two chain wheels are rotationally arranged on the connecting plate, and at least one chain wheel is connected with the connecting shaft so as to be driven by the second motor to rotate; the chain is wound on the two chain wheels; a plurality of fixed seats are arranged on the chain at intervals and are in sliding connection with the annular guide rail; the multiple visual modules and the multiple fixing bases are arranged in a one-to-one correspondence mode, and each visual module is installed on the corresponding fixing base and faces the material when the fixing base slides to the straight line section so as to obtain a material image. The method has the advantage that the detection comprehensiveness and accuracy of the detection assembly can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of visual inspection, and more specifically, relates to a visual inspection device for coating quality of an expanded raw tape and coating equipment. Background Art

[0002] Expandable raw tape is widely used in many industrial fields, such as pipeline sealing and connection. It is usually coated with bentonite on a specific material to achieve the corresponding sealing and expansion performance. In the existing production process of expandable raw tape, the rolled material is generally unwound through the unwinding mechanism, and then the bentonite is coated on the surface of the material by a scraper, followed by inspection and rewinding. However, this traditional production method faces many challenges.

[0003] In the coating process, due to the limitations of the scraper coating process itself and the stability and precision of the production equipment, the bentonite coating on the material is often uneven. Uneven coating not only affects the appearance quality of the raw tape, but more importantly, it will seriously weaken the consistency of its sealing and expansion properties.

[0004] In the detection process, the more traditional fixed-position detection method is currently mostly used. The detection equipment is relatively static, while the raw tape continues to move on the production line. This relative motion state leads to a large speed difference between the detection equipment and the raw tape, making it difficult to improve the detection accuracy. It is impossible to accurately identify defects in the coating layer, such as uneven thickness, peeling areas, surface flaws, etc., making it difficult to timely screen out unqualified products during the production process and carry out targeted treatment, which further affects the overall quality and production efficiency of the product, and increases production costs and after-sales risks. Summary of the invention

[0005] The object of the present invention is to provide a visual inspection device for coating quality of expanded raw tape and coating equipment, so as to solve the technical problem of low detection accuracy of the expanded raw tape inspection device existing in the prior art.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: to provide a visual inspection device for the coating quality of expanded raw tape, including a frame and a detection component, the frame is used to be arranged on a production line; the detection component is arranged on the frame, and is used to collect images of the inspected material; wherein the detection component includes a lifting mechanism, a connecting plate, a connecting shaft, a second motor, an annular guide rail, a sprocket, a chain, a fixed seat and a visual module; one end of the lifting mechanism is connected to the frame, and the other end is connected to the connecting plate; the connecting shaft is rotatably arranged on the connecting plate; the second motor is fixed on the connecting shaft and connected to the connecting shaft; the annular guide rail is fixed on the connecting plate, and the side facing the material is a straight section; two sprockets are rotatably arranged on the connecting plate, and at least one sprocket is connected to the connecting shaft to rotate under the drive of the second motor; the chain is wound around the two sprockets; a plurality of fixed seats are arranged on the chain at intervals, and are slidably connected to the annular guide rail; a plurality of visual modules are arranged in a one-to-one correspondence with the plurality of fixed seats, and each visual module is installed on the corresponding fixed seat and faces the material when the fixed seat slides to the straight section to obtain an image of the material.

[0007] The beneficial effects of the visual inspection device for the coating quality of expanded raw tape provided by the present invention are: compared with the prior art, the present invention drives the connecting plate and the visual module installed on the connecting plate to rise and fall through a lifting mechanism, and can flexibly adjust the height according to different inspection requirements to ensure that the visual module is in the optimal collection position; secondly, the second motor drives the sprocket and chain to operate through the connecting shaft and the transmission assembly, and when the chain moves, it drives the fixed seat to move along the annular guide rail. Since the visual module is installed on the fixed seat, when the fixed seat slides to the straight section of the annular guide rail, the visual module will face the material and obtain the material image. This inspection method enables multiple visual modules to cover the inspected material in all directions and at multiple angles, capture image information of the material in all directions, and greatly improve the comprehensiveness and accuracy of the inspection.

[0008] Finally, because the rotation direction of the chain of the present invention is consistent with that of the conveyor belt, the visual module located in the straight section of the annular guide rail is directed toward the surface of the substrate for detection. This design can effectively reduce the relative speed difference between the visual module and the substrate. Compared with the traditional fixed detection method, dynamic detection can avoid problems such as image blur and missed detection caused by speed difference, and can more accurately capture subtle defects and quality changes on the surface of the substrate, thereby improving the level of product quality control. BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0009] Figure 1 A schematic diagram of the structure of a visual inspection device for coating quality of expanded raw tape provided in an embodiment of the present invention; Figure 2 A schematic diagram of the structure of the detection component provided in an embodiment of the present invention; Figure 3 A schematic diagram of the structure of the transmission assembly provided in an embodiment of the present invention; Figure 4 The embodiment of the present invention provides Figure 3 A is a partial enlarged schematic diagram; Figure 5 A schematic diagram of the position structure of the fixing base and the detection component provided in an embodiment of the present invention; Figure 6 A schematic diagram of the structure of the installation assembly provided in an embodiment of the present invention; Figure 7 A cross-sectional structural diagram of the fixing seat provided in an embodiment of the present invention; Figure 8 A schematic diagram of the position structure of the wiping plate and the flipping mechanism provided in an embodiment of the present invention; Fig. 9 A schematic diagram of the cross-sectional structure of the guide wheel provided in an embodiment of the present invention.

[0010] Among them, the reference numerals in the figures are as follows: 10. Frame; 11. Conveyor belt; 12. Unwinding roller; 13. Winding roller; 14. First motor; 15. Image processing device; 16. Controller; 17. Guide wheel; 171. Rotating shaft; 172. Wheel body; 173. Buffer rubber ring; 174. First cavity; 175. Second cavity; 18. Side plate; 20. Detection assembly; 21. Connecting plate; 22. Lifting mechanism; 23. Connecting shaft; 24. Second motor; 25. Annular guide rail; 26. Sprocket; 27. Chain; 28. Vision module; 29. ​​Fixed seat; 30. Transmission assembly; 31. First pulley; 32. Rotating rod; 33. Second pulley; 34. Belt; 40. Mounting assembly; 41. Clamp; 42. First channel; 43. First hand wheel; 44. Locking spring; 45. Clamping rod; 46. Locking mechanism; 47. Second channel; 461, rotating shaft; 462, first gear; 463, second hand wheel; 464, first rack; 465, return spring; 50. Cleaning assembly; 51. Wiping plate; 52. Turning mechanism; 521. Second gear; 522. Second rack; 523. Rotating shaft; 53. Storage chamber; 60. Reciprocating mechanism; 61. Cam; 62. Lifting rod; 63. Guide plate; 64. Return spring. DETAILED DESCRIPTION

[0011] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of this application.

[0012] It should be further explained that the drawings and implementation modes of the present invention mainly describe the concept of the present invention. On the basis of this concept, the specific forms and settings of some connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, on the premise that those skilled in the art understand the concept of the present invention, those skilled in the art can implement the above-mentioned specific forms and settings in a well-known manner.

[0013] The directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. The directions or positional relationships indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the drawings and are only for the convenience of describing the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention.

[0014] 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 the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "multiple" means two or more, and "several" means one or more, unless otherwise clearly and specifically defined.

[0015] The visual inspection device for coating quality of expanded raw tape and the coating equipment provided by the present invention are now described.

[0016] like Figure 1 and Figure 7As shown, the first embodiment of the present invention provides a visual inspection device for the coating quality of an expanded raw tape, comprising a frame 10, an unwinding roller 12, a detection assembly 20 and a winding roller 13. A conveyor belt 11 is arranged on the frame 10, and an unwinding roller 12, a detection assembly 20 and a winding roller 13 are arranged above the conveyor belt 11 in sequence according to the direction of material travel; the winding roller 13 is connected to the frame 10 through a side plate, and the winding roller 13 is driven to rotate by a first motor 14; in addition, this production line also includes a detection assembly 20 installed on the frame 10, and the detection assembly 20 is used to collect images of the inspected material; the detection assembly 20 includes a lifting mechanism 22, a connecting plate 21, a connecting shaft 23, a second motor 24, a circular guide rail 25, a sprocket 26, a chain 27, a fixed seat 29 and a visual module 28; one end of the lifting mechanism 22 is connected to the frame 10, and the other end is connected to the connecting plate 21; the connecting shaft 23 is rotatably arranged on the connecting plate 21; the second motor 24 is fixed on the connecting shaft 23 and drives the connecting shaft 23 to rotate; the annular guide rail 25 is fixed on the connecting plate 21, and the side facing the material is a straight section, so as to ensure that the visual module 28 moves parallel to the material; two sprockets 26 are rotatably arranged on the connecting plate 21, and at least one sprocket 26 is connected to the connecting shaft 23 through a transmission assembly 30, so as to rotate under the drive of the second motor 24; the chain 27 is wound around the two sprockets 26; a plurality of fixed seats 29 are arranged at intervals on the chain 27, and are slidably connected to the annular guide rail 25; a plurality of visual modules 28 are arranged one by one with a plurality of fixed seats 29, and each visual module 28 is installed on the corresponding fixed seat 29 and faces the material when the fixed seat 29 slides to the straight section, so as to obtain an image of the material.

[0017] During operation, the lifting mechanism 22 starts to work. The lifting mechanism 22 can use a cylinder. The lifting mechanism 22 drives the connecting plate 21 to rise and fall on the frame 10 according to actual needs, so that it is at a suitable height position to ensure that the detection component 20 can accurately detect the materials on the conveyor belt 11; start the second motor 24 to drive the connecting shaft 23 to start rotating. After the connecting shaft 23 rotates, one of the sprockets 26 is driven to rotate through the transmission component 30. Since the two sprockets 26 are meshed and connected by the chain 27, the chain 27 starts to move in a circle along the annular guide rail 25 under the rotation of the sprocket 26. The annular guide rail 25 is composed of two semicircular guide rails and two linear guide rails. When the chain 27 slides on the annular guide rail 25, it drives the multiple fixed seats 17 connected thereto to move; the multiple fixed seats 17 move with the chain 27, and the multiple visual modules 28 correspond to the multiple fixed seats 17 one by one, and each visual module 28 is connected to the corresponding fixed seat 17 through the installation component 40, so that the visual module 28 will move along the trajectory set by the annular guide rail 25 under the drive of the fixed seat 17. During the movement, the visual module 28 continuously collects images of the inspected material (i.e., the expanded raw material belt on the conveyor belt 11), so as to obtain image information on the coating quality of the material, thereby providing a basis for subsequent operations such as judging whether the coating quality is qualified.

[0018] After the material passes through the detection component 20 and completes the image acquisition detection, the material continues to move forward on the conveyor belt 11, and the winding roller 13 rotates under the drive of the first motor 14 and winds up the inspected material, thus completing the entire expansion raw tape coating quality detection and winding workflow.

[0019] Compared with the prior art, the visual inspection device for coating quality of expanded raw tape provided in this embodiment has the following advantages: The present invention drives the connecting plate 21 and the visual module 28 installed on the connecting plate 21 to rise and fall through the lifting mechanism 22, and can flexibly adjust the height according to different detection requirements to ensure that the visual module 28 is in the best collection position. Secondly, the second motor 24 drives the sprocket 26 and the chain 27 to operate through the transmission assembly 30 and the connecting shaft 23, and when the chain 27 moves, it will drive the fixed seat 29 to move along the annular guide rail 25. Since the visual module 28 is installed on the fixed seat 29, when the fixed seat 29 slides to the straight section of the annular guide rail 25, the visual module 28 will face the material and obtain the material image. The annular guide rail 25 is used to ensure that the visual module 28 moves parallel to the material. This detection method allows multiple visual modules 28 to cover the detected material in all directions and angles, capture image information of the material in all directions, and greatly improve the comprehensiveness and accuracy of the detection.

[0020] Finally, because the rotation direction of the chain 27 of the present invention is consistent with that of the conveyor belt, the visual module 28 located in the straight section of the annular guide rail 25 is directed toward the surface of the substrate for detection. This design can effectively reduce the relative speed difference between the visual module 28 and the substrate. Compared with the traditional fixed detection method, dynamic detection can avoid problems such as image blur and missed detection caused by speed difference, and can more accurately capture subtle defects and quality changes on the surface of the substrate, thereby improving the level of product quality control.

[0021] As shown in Figure 9, a specific embodiment provided by the present invention on the basis of the first embodiment is as follows: a plurality of guide wheels 17 are provided on each fixed seat 29, and the plurality of guide wheels 17 are located on both sides of the annular guide rail 25 to clamp the annular guide rail 25; each guide wheel 17 includes a rotating shaft 171, a wheel body 172 and a buffer rubber ring 173, the rotating shaft 171 is fixed on the fixed seat 29, the wheel body 172 is rotatably set on the rotating shaft 171, an annular groove is provided on the working surface of the wheel body 172, the buffer rubber ring 173 is arranged in the annular groove, and the surface exposed outside the annular groove is used to contact with the annular guide rail 25; the buffer rubber ring 173 is a rectangular cross-sectional structure, and a first cavity 174 and a second cavity 175 are provided in the buffer rubber ring 173, the first cavity 174 and the second cavity 175 are arranged side by side along the radial direction of the wheel body 172, and the first cavity 174 is located outside the second cavity 175, the first cavity 174 is filled with a viscous fluid, and the second cavity 175 is filled with a shear-hardening non-Newtonian fluid.

[0022] When in use, the guide wheels 17 on both sides clamp the annular guide rail 25, so that the buffer rubber ring on the guide wheel 17 is recessed inward, forming a limit for the annular guide rail 25 to prevent it from coming off; at the same time, the viscous fluid and the shear-hardened non-Newtonian fluid filled are compressed and will flow with the movement of the fixed seat 29, while absorbing vibrations, it also provides damping for the fixed seat 29, making the movement of the fixed seat 29 more stable; and when the fixed seat 29 runs to the turning position of the annular guide rail 25, the change in vibration and contact state will cause the shear-hardened non-Newtonian fluid located further inside to undergo a phase change into a solid state, thereby improving the energy absorption effect while preventing the buffer rubber ring from further recessing, and preventing the guide wheel 29 on the opposite side from coming off the annular guide rail 25.

[0023] This form can achieve a better energy dissipation and shock absorption effect, effectively reduce the vibration transmitted to the visual module 28, maintain the stability of the visual module 28, and improve the clarity of the acquired image.

[0024] like Figures 5 and 6As shown, a specific embodiment provided by the present invention on the basis of the first embodiment is as follows: inwardly recessed slide grooves are symmetrically arranged on the upper and lower sides of the annular guide rail 25, and guide wheels 29 are respectively arranged on the upper and lower sides of the annular guide rail 25 on one side of the fixed seat 17 close to the connecting plate 21, and the guide wheels 29 are slidably embedded in the slide grooves.

[0025] When the chain 27 moves along the annular guide rail 25 driven by the sprocket 26, the fixed seat 17 connected to the chain 27 will also move accordingly. Since the guide wheel 29 and the slide groove are in a sliding fit relationship, when the fixed seat 17 moves under the traction of the chain 27, the guide wheel 29 will roll in the slide groove. In the linear guide rail part of the annular guide rail 25, the guide wheel 29 moves smoothly along the linear slide groove, so that the fixed seat 17 can maintain linear motion; in the semi-circular guide rail part of the annular guide rail 25, the guide wheel 29 will roll along the arc-shaped slide groove. Because the guide wheel 29 and the slide groove are closely matched, the fixed seat 17 can be accurately guided to move along the semi-circular track, so that the fixed seat 17 can smoothly follow the chain 27 to move on the entire annular track of the annular guide rail 25.

[0026] Since the multiple visual modules 28 correspond to the multiple fixed seats 17 one by one, and each visual module 28 is connected to the corresponding fixed seat 17 through the mounting assembly 40, the precise movement of the fixed seat 17 ensures the precise movement of the visual module 28. Driven by the fixed seat 17, the visual module 28 can perform all-round image acquisition of the expanded raw material belt on the conveyor belt 11 along the track set by the annular guide rail 25. In this process, the cooperation of the guide wheel 29 and the slideway ensures that the distance between the visual module 28 and the material is relatively stable, and it can scan according to the predetermined track, thereby obtaining high-quality images for coating quality inspection.

[0027] like Figure 6 to Figure 7 As shown, the present invention provides a specific embodiment based on the above-mentioned embodiment as follows: the mounting assembly 40 includes a clamp 41, a clamp rod 45 and a locking mechanism 46. The clamp 41 can be horizontally slidably arranged in the first channel 42 of the fixed seat 17, and a connecting rod is arranged at one end of the clamp 41. After the connecting rod passes through the first channel 42, a first hand wheel 43 is arranged. A locking spring 44 is sleeved on the connecting rod in the first channel 42, and one end of the locking spring 44 is connected to the clamp 41, and the other end of the locking spring 44 is connected to the inner wall of the first channel 42; under the action of the locking mechanism 46, the clamp rod 45 can be lifted and lowered in the second channel 47 arranged at the second end of the fixed seat 17, and the first channel 42 is connected to the second channel 47. The end of the clamp rod 45 away from the first channel 42 is connected to the corresponding visual module 28, and the end of the clamp rod 45 located in the first channel 42 is provided with a card slot adapted to the clamp 41.

[0028] When installing the visual module 28, first align the end of the card rod 45 with the card slot and insert it into the second channel 47 at the second end of the fixed seat 17. At this time, with the help of the locking mechanism 46, the card rod 45 can be flexibly raised and lowered in the second channel 47. Then continue to operate the locking mechanism 46 to push the card rod 45 to move in the direction close to the first channel 42. After the front end of the card rod 45 contacts the clamping head 41, it will apply a force to the clamping head 41, forcing the clamping head 41 to overcome the elastic force of the locking spring 44 and retract along the first channel 42. When the card rod 45 continues to advance and the card slot moves to the corresponding position, the locking spring 44 instantly releases the elastic force, pushing the clamping head 41 to quickly pop out in the opposite direction of the first channel 42 and accurately snap into the card slot. At this point, the connection between the visual module 28 and the fixed seat 17 is firmly completed, and the installation of the visual module 28 is realized.

[0029] When the visual module 28 needs to be disassembled, the steps are equally convenient. Just pull the first hand wheel 43, and the first hand wheel 43 is forced to drive the connecting rod, and then pull the clamp head 41 to overcome the spring resistance, stably retract into the first channel 42, and release the clamp head 41 from locking the card slot. Then, reverse the locking mechanism 46, and the clamp rod 45 moves smoothly outward along the second channel 47 under its action until it is completely separated from the second channel 47. In this way, the visual module 28 can be smoothly disassembled from the fixing seat 17.

[0030] Compared with the prior art, the mounting assembly 40 can quickly connect or separate the visual module 28 from the fixed seat 17 through the cooperation of the hand wheel, the spring and the locking mechanism 46. Secondly, the clamping design of the clamping head 41 and the clamping slot can effectively fix the position of the clamping rod 45 under the action of the spring, ensuring that the visual module 28 is stable and does not shake during operation, which is conducive to accurate detection.

[0031] like Figure 6 As shown, the present invention provides a specific embodiment based on the above embodiment as follows: the locking mechanism 46 includes a rotating shaft 461, a first gear 462, a second hand wheel 463, a first rack 464 and a reset spring 465. The rotating shaft 461 is rotatably arranged in the first channel 42 on the other side of the clamping rod 45, the first gear 462 is arranged on the rotating shaft 461, and the second hand wheel 463 is arranged after the end of the rotating shaft 461 passes through the side of the fixed seat 17 away from the connecting plate 21; the first rack 464 is vertically arranged on the clamping rod 45 on the same side as the first gear 462, and meshes with the first gear 462; the reset spring 465 is arranged in the second channel 47, one end of the reset spring 465 is connected to the clamping rod 45, and the other end of the reset spring 465 is connected to the inner wall of the second channel 47, and the reset spring 465 is used to drive the first rack 464 to move outward along the second channel 47.

[0032] Initially, the end of the clamping rod 45 with the clamping slot is inserted into the second channel 47, the reset spring 465 is in a natural state, the first gear 462 on the rotating shaft 461 is in meshing with the first rack 464 on the clamping rod 45, and the operator rotates the second hand wheel 463 to drive the rotating shaft 461 and the first gear 462 thereon to rotate. Since the first gear 462 and the first rack 464 are meshed with each other, the first gear 462 rotates, so that the first rack 464 and the clamping rod 45 overcome the elastic force of the reset spring 465 and move downward along the second channel 47. When the front end of the clamping rod 45 contacts the clamping head 41, the clamping rod 45 continues to move downward, the clamping head 41 retracts into the first channel 42, and the clamping rod 45 continues to descend until the clamping slot reaches the clamping head 41 position. At this time, the second hand wheel 463 is released, and under the action of the locking spring 44, the clamping head 41 pops out and is clamped into the clamping slot, completing the installation of the visual module 28. At the same time, due to the self-locking characteristics of the first gear 462 and the first rack 464, the position of the clamping rod 45 can be kept stable.

[0033] Similarly, when disassembling, pull the first hand wheel 43 to retract the clamping head 41 into the first channel 42, and release the fixing effect of the clamping head 41 on the clamping slot. Then, hold the second hand wheel 463 and rotate the rotating shaft 461 in the opposite direction. The rotating shaft 461 drives the first gear 462 to rotate in the opposite direction, so that the first rack 464 and the clamping rod 45 move outward along the second channel 47 under the elastic force of the return spring 465. Until the clamping rod 45 is completely separated from the second channel 47, the visual module 28 can be disassembled.

[0034] Compared with the prior art, the second hand wheel 463 is used to rotate the rotating shaft 461, which is convenient for the operator to manually control the lifting and lowering of the clamping rod 45. This manual operation method is simple and intuitive, does not require complex electric or pneumatic devices, and reduces the complexity and cost of the equipment. In addition, the setting of the reset spring 465 makes the disassembly process easier. After unlocking, the reset spring 465 can automatically push the clamping rod 45 to move outward, reducing the operator's operating steps and improving the disassembly efficiency.

[0035] like Figures 3 to 7 As shown, the present invention provides a specific embodiment based on the above embodiment as follows: the quality inspection device also includes a cleaning component 50 for cleaning the visual module 28, and the cleaning component 50 includes: a wiping plate 51 and a flip mechanism 52. The wiping plate 51 is flippably arranged in the storage cavity 53 above the connecting plate 21; the flip mechanism 52 is arranged on the second side surface of the connecting plate 21 and is connected to the wiping plate 51, and is used to drive the wiping plate 51 to flip; When the vision module 28 moves to above the annular guide rail 25, the flipping mechanism 52 drives the wiping plate 51 to rotate outward from the storage cavity 53, so that the wiping plate 51 contacts the vision module 28 and wipes its surface. When the vision module 28 moves out from above the annular guide rail 25, the flipping mechanism 52 drives the wiping plate 51 to rotate in the opposite direction until it is located in the storage cavity 53.

[0036] Because dust may fall on the lens of the visual module 28 during long-term operation, in order to further improve the detection accuracy of the visual module 28, a cleaning component 50 for cleaning the visual module 28 is provided on the connecting plate 21. The material of the wiping plate 51 is made of soft material to avoid secondary damage to the lens of the visual module 28. When the visual module 28 moves to the top of the annular guide rail 25, the flipping mechanism 52 drives the wiping plate 51 to rotate 90° from the storage cavity 53 to the outside. At this time, the lens of the visual module 28 located above the annular guide rail 25 contacts the surface of the wiping plate 51, the chain 27 drives the visual module 28 to move, and the wiping plate 51 is fixed to wipe the lens surface of the visual module 28; when all the visual modules 28 are moved out of the linear guide rail above the annular guide rail 25, the flipping mechanism 52 drives the wiping plate 51 to rotate 90° in the opposite direction, so that the wiping plate 51 returns to the storage cavity 53 on the connecting plate 21.

[0037] like Figure 3 to Figure 4 As shown, a specific embodiment of the present invention is provided on the basis of the above-mentioned embodiment as follows: the flipping mechanism 52 includes a second gear 521, a rotating shaft 523, a second rack 522 and a reciprocating mechanism 60. The two second gears 521 are respectively located at the front and rear ends of the wiping plate 51, and the two lower ends of the wiping plate 51 are respectively rotatably connected to the connecting plate 21 through two rotating shafts 523. The free end of each rotating shaft 523 passes through the connecting plate 21 and is connected to the corresponding second gear 521; the two second racks 522 are arranged on the second side surface of the connecting plate 21 and are respectively meshed with the two second gears 521. Each second rack 522 rises and falls under the drive of the reciprocating mechanism 60.

[0038] The wiping plate 51 completes the cleaning and resetting action through the flip mechanism 52. Specifically, two rotating shafts 523 are respectively provided at the two ends below the wiping plate 51. The wiping plate 51 rotates with the rotating shafts 523 as the base point. After the free end of each rotating shaft 523 passes through the connecting plate 21, a second gear 521 is provided. The second gear 521 is meshed with a second rack 522 provided on the second side of the connecting plate 21. When the reciprocating mechanism 60 drives the second rack 522 to rise and fall, the rotation action of the wiping plate 51 is completed through the meshing action of the second gear 521 and the second rack 522, thereby realizing the cleaning and resetting function of the wiping plate 51. Compared with the prior art, the flip mechanism 52 has a simple structure, is easy to maintain, and is highly practical.

[0039] like Figures 3 to 5 As shown, the present invention provides a specific embodiment based on the above embodiment as follows: at least one of the sprockets 26 is connected to the connecting shaft 23 through a transmission assembly 30, and the transmission assembly 30 includes a first pulley 31, a rotating rod 32, a second pulley 33 and a belt 34. The first pulley 31 is arranged on the connecting shaft 23 and is located on the second side of the connecting plate 21; the rotating rod 32 is arranged in the semicircular guide rail, and the first end of the rotating rod 32 is connected to one of the sprockets 26, and the second end of the rotating rod 32 passes through the connecting plate 21 and is provided with a second pulley 33, and the first pulley 31 and the second pulley 33 are connected through the belt 34.

[0040] When the visual module 28 detects, the second motor 24 is started to drive the connecting shaft 23 set at its output end to rotate. Since the connecting shaft 23 is provided with a first pulley 31, the first pulley 31 will also rotate synchronously. Under the action of the belt 34, the second pulley 33 set on the rotating rod 32 will also rotate accordingly. When the rotating rod 32 rotates, it will drive the sprocket 26 set at its first end to rotate. After the sprocket 26 rotates, through the action of the chain 27, the other sprocket 26 will also rotate synchronously. At this time, the visual module 28 installed on the chain 27 through the fixed seat 17 will move accordingly.

[0041] like Figure 4 As shown, the present invention provides a specific embodiment based on the above embodiment as follows: the reciprocating mechanism 60 includes a cam 61, a lifting rod 62, a return spring 64 and a roller. The cam 61 is arranged on the rotating rod 32 outside the second pulley 33; the lifting rod 62 is vertically arranged below the second rack 522, the lifting rod 62 is slidably connected and penetrates the guide plate 63 arranged on the second side surface of the connecting plate 21, the upper end of the lifting rod 62 is connected to the lower end of the second rack 522, and the lower end of the lifting rod 62 is rotatably provided with a roller, and the roller is slidably connected to the outer surface of the cam 61; the return spring 64 is sleeved on the lifting rod 62 below the guide plate 63, and the upper end of the return spring 64 is connected to the guide plate 63, and the lower end of the return spring 64 is connected to the boss arranged at the lower end of the lifting rod 62.

[0042] When the rotating rod 32 starts to rotate under the drive of the transmission assembly 30, the cam 61 rigidly connected thereto also rotates synchronously. The outer surface of the cam 61 is in close contact with the roller disposed at the lower end of the lifting rod 62 and forms a sliding connection relationship. As the cam 61 continues to rotate, its contour curve continuously pushes the roller, thereby driving the lifting rod 62 to move up and down along the vertical direction.

[0043] In order to ensure that the lifting rod 62 can be stably lifted and lowered in the vertical direction, the lifting rod 62 and the guide plate 63 fixed on the second side surface of the connecting plate 21 are slidably connected, and the guide plate 63 provides precise guiding constraints for the lifting rod 62, so that its motion trajectory always remains vertical. The upper end of the lifting rod 62 is firmly connected to the lower end of the second rack 522, so when the lifting rod 62 is lifted and lowered under the action of the cam 61, the second rack 522 will follow the lifting and lowering synchronously. Since the second rack 522 is meshed with the second gear 521, the lifting and lowering action of the second rack 522 will inevitably drive the second gear 521 to rotate, thereby achieving a series of linkage effects.

[0044] In the whole process, the return spring 64 plays a key role. When the lifting rod 62 rises, the roller rolls upward along the contour of the cam 61, and the lifting rod 62 moves upward to overcome the elastic force of the return spring 64. The spring is compressed and stores elastic potential energy; when the cam 61 rotates to the stage where the lifting rod 62 needs to descend, the return spring 64 releases the stored elastic potential energy, and pulls the boss at the lower end of the lifting rod 62 with its own elastic force, causing the lifting rod 62 to smoothly descend along the guide plate 63 and return to the initial position or the corresponding preset position, preparing for the next round of lifting cycle.

[0045] In a specific embodiment, the quality inspection device also includes an image processing device 15 arranged on one side of the rack 10, a wireless communication module and a main controller 16 arranged on the rack 10, and the visual module 28 and the wireless communication module are electrically connected to the main controller 16 respectively; the host computer PC has its own wireless network card and is equipped with a data processing module, which is wirelessly connected to the wireless communication module.

[0046] Under the control of the main controller, the visual module 28 collects images of the inspected object to obtain relevant image information such as the appearance and size of the material; the collected image data is transmitted to the main controller 16 through an electrical connection, and the main controller 16 performs preliminary processing and integration on the data, and then transmits the data wirelessly to the host computer PC with a wireless network card and a data processing module through the wireless communication module. After receiving the image data, the host computer PC uses its data processing module to further process and analyze the image, such as denoising, contrast enhancement, feature extraction, image recognition and other operations to determine whether the material has quality problems, such as defects, size production, etc.; the host computer PC feeds back the results of the processing and analysis to the main controller 16, and the main controller 16 makes corresponding control actions according to the results, such as controlling the start and stop of the winding roller 13, marking unqualified materials, thereby realizing automatic detection and control of material quality.

[0047] A coating device provided in the second embodiment of the present invention comprises the above-mentioned visual detection device for coating quality of expanded raw tape. The detection device can perform high-precision detection on the coating quality of expanded raw tape. Through the precise motion trajectory of the visual module 28 along the annular guide rail 25, the image information of the coated surface of the raw tape can be collected comprehensively and meticulously. For example, it is possible to accurately detect whether the coating layer has various defects such as uneven thickness, bubbles, scratches or partial uncoated, so as to timely feedback to the operator or control system so as to adjust and optimize the coating process and effectively improve the coating quality.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant field may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

Claims

1. A visual inspection device for coating quality of expanded raw tape, characterized in that: include: A frame (10) is used to be arranged on a production line; A detection component (20), arranged on the frame (10), and used for collecting an image of the material being detected; Wherein, the detection component (20) comprises: A lifting mechanism (22), one end of which is connected to the frame (10); A connecting plate (21) connected to the other end of the lifting mechanism (22); A connecting shaft (23) rotatably disposed on the connecting plate (21); A second motor (24) is fixedly mounted on the connecting shaft (23) and connected to the connecting shaft (23); An annular guide rail (25) is fixedly mounted on the connecting plate (21), and the side facing the material is a straight line segment; two sprocket wheels (26) rotatably disposed on the connecting plate (21), and at least one of the sprocket wheels (26) is connected to the connecting shaft (23) so as to rotate under the drive of the second motor (24); A chain (27) wound around the two sprockets (26); A plurality of fixing seats (29) are arranged at intervals on the chain (27) and are slidably connected to the annular guide rail (25); A plurality of visual modules (28) are arranged in one-to-one correspondence with the plurality of fixing seats (29), and each of the visual modules (28) is mounted on a corresponding fixing seat (29) and faces the material when the fixing seat (29) slides to the straight section of the annular guide rail, so as to obtain an image of the material.

2. A visual inspection device for coating quality of expanded raw tape as claimed in claim 1, characterized in that: Each of the fixing seats (29) is provided with a plurality of guide wheels (17), and the plurality of guide wheels (17) are located on both sides of the annular guide rail (25) to clamp the annular guide rail (25); each of the guide wheels (17) comprises a rotating shaft (171), a wheel body (172) and a buffer rubber ring (173), the rotating shaft (171) is fixedly mounted on the fixing seat (29), the wheel body (172) is rotatably mounted on the rotating shaft (171), an annular groove is provided on the working surface of the wheel body (172), and the buffer rubber ring (173) is provided with a plurality of guide wheels (173). 3) is arranged in the annular groove, and the surface exposed outside the annular groove is used to contact the annular guide rail (25); the buffer rubber ring (173) has a first cavity (174) and a second cavity (175), the first cavity (174) and the second cavity (175) are arranged in parallel along the radial direction of the wheel body, and the first cavity (174) is located outside the second cavity (175), the first cavity (174) is filled with a viscous fluid, and the second cavity (175) is filled with a shear-hardening non-Newtonian fluid.

3. A visual inspection device for coating quality of expanded raw tape as claimed in claim 1, characterized in that: The annular guide rail (25) is symmetrically provided with inwardly recessed sliding grooves on the upper and lower sides, and the fixing seat (29) is provided with guide wheels (17) on the upper and lower sides of the annular guide rail (25) on one side close to the connecting plate (21), and the guide wheels (17) are slidably embedded in the sliding grooves.

4. A visual inspection device for coating quality of expanded raw tape as claimed in claim 2, characterized in that: The visual module (28) is mounted on a fixing seat (29) via a mounting assembly (40), wherein the mounting assembly (40) comprises: A clamping head (41) is slidably arranged in a horizontal direction in a first channel (42) of the fixing seat (29); a connecting rod is arranged at one end of the clamping head (41); after the connecting rod passes through the first channel (42), a first hand wheel (43) is arranged; a locking spring (44) is sleeved on the connecting rod in the first channel (42); one end of the locking spring (44) is connected to the clamping head (41), and the other end of the locking spring (44) is connected to an inner wall of the first channel (42); A clamping rod (45) is liftably arranged in a second channel (47) arranged at the second end of the fixing seat (29) under the action of a locking mechanism (46); the first channel (42) is connected to the second channel (47); an end of the clamping rod (45) away from the first channel (42) is connected to the corresponding visual module (28); and an end of the clamping rod (45) located in the first channel (42) is provided with a clamping groove adapted to the clamping head (41); Wherein, the locking mechanism (46) comprises: A rotating shaft (461) is rotatably disposed in the first channel (42) on the other side of the clamping rod (45); a first gear (462) is disposed on the rotating shaft (461); and a second hand wheel (463) is disposed at an end of the rotating shaft (461) that passes through a side of the fixing seat (29) away from the connecting plate (21); A first rack (464) is vertically arranged on the clamping rod (45) on the same side as the first gear (462) and meshes with the first gear (462); A return spring (465) is disposed in the second channel (47), one end of the return spring (465) is connected to the clamping rod (45), and the other end of the return spring (465) is connected to the inner wall of the second channel (47), and the return spring (465) is used to drive the rack to move outward along the second channel (47).

5. A visual inspection device for coating quality of expanded raw tape as claimed in claim 3, characterized in that: The sprocket (26) is transmission-connected to the connecting shaft (23) via a transmission assembly (30), wherein the transmission assembly (30) comprises: A first pulley (31) is arranged on the connecting shaft (23) and is located on the second side surface of the connecting plate (21); A rotating rod (32) is arranged in the annular guide rail, and a first end of the rotating rod (32) is connected to one of the sprockets (26). A second end of the rotating rod (32) passes through the connecting plate (21) and is provided with a second pulley (33). The first pulley (31) and the second pulley (33) are connected by a belt (34).

6. A visual inspection device for coating quality of expanded raw tape as claimed in claim 5, characterized in that: The quality inspection device further comprises a cleaning component (50) for cleaning the visual module (28), wherein the cleaning component (50) comprises: A wiping plate (51) is flippably disposed in the storage cavity (53) above the connecting plate (21); a turning mechanism (52), arranged on the second side surface of the connecting plate (21) and connected to the wiping plate (51), and used for driving the wiping plate (51) to turn over; When the visual module (28) moves to above the annular guide rail (25), the flipping mechanism (52) drives the wiping plate (51) to rotate outward from the storage cavity (53), so that the wiping plate (51) contacts the visual module (28) and wipes the surface thereof; when the visual module (28) moves out from above the annular guide rail (25), the flipping mechanism (52) drives the wiping plate (51) to rotate in the opposite direction until it is located in the storage cavity (53).

7. A visual inspection device for coating quality of expanded raw tape as claimed in claim 6, characterized in that: The turning mechanism (52) comprises: Two second gears (521) are respectively located at the front and rear ends of the wiping plate (51); the two ends below the wiping plate (51) are rotatably connected to the connecting plate (21) via two rotating shafts (523); the free end of each rotating shaft (523) passes through the connecting plate (21) and is connected to the corresponding second gear (521); Two second racks (522) are arranged on the second side surface of the connecting plate (21) and are respectively meshed with the two second gears (521). Each second rack (522) is driven by the reciprocating mechanism (60) to rise and fall.

8. A visual inspection device for coating quality of expanded raw tape as claimed in claim 7, characterized in that: The reciprocating mechanism (60) comprises: A cam (61) disposed on the rotating rod (32) outside the second pulley (33); A lifting rod (62) is vertically arranged below the second rack (522), the lifting rod (62) is slidably connected to and penetrates a guide plate (63) arranged on the second side surface of the connecting plate (21), the upper end of the lifting rod (62) is connected to the lower end of the second rack (522), and a roller is rotatably arranged at the lower end of the lifting rod (62), and the roller is slidably connected to the outer surface of the cam (61); A return spring (64) is sleeved on the lifting rod (62) below the guide plate (63), and the upper end of the return spring (64) is connected to the guide plate (63), and the lower end of the return spring (64) is connected to a boss arranged at the lower end of the lifting rod (62).

9. A visual inspection device for coating quality of expanded raw tape as claimed in claim 1, characterized in that: The quality inspection device further comprises an image processing device (15) arranged on one side of the frame (10), a wireless communication module and a main controller (16) arranged on the frame (10), the visual module (28) and the wireless communication module being electrically connected to the main controller (16) respectively; and a host computer PC having its own wireless network card and a data processing module, which is wirelessly connected to the wireless communication module.

10. A coating device, characterized in that: A visual inspection device for coating quality of expanded raw tape comprising the device described in any one of claims 1 to 9.

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