A thermos cup thread groove detection device

Abstract

This invention discloses a device for detecting thread grooves in thermos cups, relating to the field of thermos cup processing and inspection technology. The key technical features include a loading platform and an isolation box. A light source plate and an industrial camera are mounted on the top of the isolation box. A detection conveying module, located directly below the light source plate, is also located within the isolation box for rolling the thermos cups during thread groove detection. A pushing module, located at the starting end of the conveying module, is also located within the isolation box. This pushing module is connected to the loading platform via a guide groove, pushing the thermos cups loaded onto it to the detection conveying module. By incorporating a detection conveying module, this invention enables the rolling transport of the thermos cups, allowing for inspection of the rolling cups using an industrial camera. This allows for comprehensive inspection of the cup rim during transport, improving the continuity of the inspection process and optimizing the production process.

Description

Technical Field

[0001] This invention relates to the field of thermos cup processing and testing technology, specifically to a device for detecting thread grooves in thermos cups. Background Technology

[0002] Conventional thermos cups use threaded lids, and the fit between the threads at the cup rim and the lid directly affects their heat retention performance. Therefore, high-precision thread inspection is necessary during the design and manufacturing of thermos cups. Current conventional inspection methods utilize machine vision with industrial cameras, which are more efficient and accurate than manual inspection. The main process involves placing the roller-pressed threaded cup body at the inspection station, aligning the industrial camera with the thread groove at the rim, and then using a clamping structure at the inspection station to rotate the cup body, thus achieving a comprehensive inspection of the thread groove. However, this method requires clamping and positioning of the cup body, resulting in pauses during inspection. It involves a "loading-inspection-unloading" inspection process, which also requires product transfer via a robotic arm, leading to inconsistencies in process flow and indicating room for improvement in inspection efficiency.

[0003] Therefore, this invention was designed to solve the above-mentioned problems.

[0004] The above content is only used to help understand the technical solution of the present invention and does not represent an admission that the above content is the closest prior art. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a device for detecting thread grooves in thermos cups.

[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A device for detecting thread grooves in thermos cups includes a loading platform and an isolation box. The top of the isolation box is equipped with a light source plate for adjusting the detection environment and an industrial camera for performing machine vision inspection. Inside the isolation box, there is also a detection conveying module located directly below the light source plate, which is used to roll and transport the thermos cups during thread groove detection. Inside the isolation box, there is also a pushing module located at the starting end of the detection conveying module. The pushing module is connected to the loading platform through a guide groove and is used to push the thermos cups transported from the loading platform to the detection conveying module.

[0007] Furthermore, the detection and conveying module includes a base box and two sets of clamping transmission arms arranged opposite each other on the base box, wherein the belts on the two sets of base boxes move in the same direction and there is a speed difference between the two sets of belts.

[0008] Furthermore, the material pushing module includes a clamping platform connected to the material guide groove. A side plate is provided on the side end of the clamping platform, and a push plate is movably embedded in the side plate. An installation platform is provided on the side of the side plate away from the clamping platform, and a telescopic cylinder is provided on the installation platform to be assembled with the push plate, so that the push plate can be pushed laterally towards the clamping platform by the drive of the telescopic cylinder.

[0009] Furthermore, the base box has an annular groove surrounding a set of clamping transmission arms. A flexible ring is movably embedded in the annular groove. At least three sets of rubber rollers are rotatably mounted on the flexible ring. A brush for cleaning the thread groove of the thermos cup is provided at the end of the rubber roller away from the flexible ring.

[0010] Furthermore, the isolation box has a rework port on its side, and a feeding conveyor belt is located inside it below the inspection and conveying module. A packaging port is opened on the side of the isolation box away from the rework port, and the conveying end of the feeding conveyor belt extends out from the packaging port. An unloading platform for receiving products on the feeding conveyor belt is provided on the outside of the isolation box. The isolation box also has a sorting mechanism located at the end of the inspection and conveying module, which is used to sort good quality thermos cups and defective thermos cups to the rework port and the feeding conveyor belt respectively.

[0011] Furthermore, the sorting mechanism includes a fixed shaft disposed within the isolation box plate, a sorting plate rotatably disposed on the fixed shaft shaft, a limiting plate fixed on the base box for limiting the sorting plate, and a driving assembly for driving the sorting plate to rotate; the sorting plate is L-shaped, and in the initial state, a channel is formed between its long side and the side wall of the isolation box plate for the thermos cups to fall onto the feeding conveyor belt; in the driven state, its long side rotates and tilts, forming a ramp that leads the thermos cups out of the return port.

[0012] Furthermore, the isolation box plate is provided with a support platform, and the driving assembly includes a lead screw rotatably mounted on the support platform, a sleeve block reciprocating on the lead screw, a connecting rod mounted on the sleeve block, and a transmission unit mounted on the connecting rod; the transmission unit includes a movable connecting plate, a connecting arm mounted on the movable connecting plate, and a trigger plate movably mounted on a fixed shaft and driven by the push of a rubber roller; the movable connecting plate is provided with an arc-shaped groove, and the end of the connecting rod is engaged in the arc-shaped groove for limited sliding.

[0013] Furthermore, the isolation box is also equipped with a stop plate that limits the opening of the thermos cup when it falls onto the material clamping platform.

[0014] Furthermore, the loading platform is equipped with multiple sets of transmission rollers that drive the thermos cups to the side of the feeding trough.

[0015] Furthermore, a rubber plate is also provided on the side wall of the isolation box plate, located below the sorting plate, to cushion the thermos cups.

[0016] Compared with the prior art, the beneficial effects of this solution are: by setting up a detection and conveying module, the present invention enables the thermos cup to be transported by rolling, and then, in conjunction with an industrial camera, the rolling thermos cup is inspected. This allows for all-round inspection of the cup rim during the transportation of the thermos cup, improving the continuity of the inspection process and optimizing the production process. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a frontal three-dimensional schematic diagram of an embodiment of the present invention; Figure 2 This is a side-view perspective view of an embodiment of the present invention; Figure 3 This is a rear-view stereoscopic diagram of an embodiment of the present invention; Figure 4 This is a side view schematic diagram of an embodiment of the present invention; Figure 5 This is a three-dimensional schematic diagram of the internal structure of the isolation box plate in an embodiment of the present invention; Figure 6 This is a first side view of the internal structure of the isolation box plate in an embodiment of the present invention; Figure 7 This is a front view schematic diagram of the internal structure of the isolation box plate in an embodiment of the present invention; Figure 8 This is a disassembly diagram of the annular groove and the flexible ring in an embodiment of the present invention; Figure 9 This is a second side view of the internal structure of the isolation box plate in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structural combination of the flexible ring and the rubber roller in an embodiment of the present invention; Figure 11 This is a schematic diagram of the sorting mechanism in an embodiment of the present invention; Figure 12 This is a disassembled schematic diagram of the transmission unit and connecting rod in the isolation box plate of the present invention; Figure 13 This is a schematic diagram of the structure of the isolation box plate in an embodiment of the present invention.

[0018] In the diagram: 1. Loading platform; 11. Isolation box plate; 12. Light source plate; 13. Industrial camera; 14. Guide chute; 2. Base box; 21. Clamping transmission arm; 3. Material clamping platform; 31. Side plate; 32. Push plate; 33. Mounting platform; 34. Telescopic cylinder; 4. Annular groove; 41. Flexible ring; 42. Rubber roller; 43. Brush; 5. Rework port; 51. Feeding conveyor belt; 52. Packaging port; 53. Unloading platform; 6. Fixed shaft; 61. Sorting plate; 62. Limiting plate; 7. Support platform; 71. Lead screw; 72. Sleeve block; 73. Connecting rod; 74. Movable connecting plate; 75. Connecting arm; 76. Trigger plate; 77. Arc groove; 8. Abutment plate; 81. Transmission roller; 82. Rubber plate. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. 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.

[0020] like Figure 1-13The device for detecting thread grooves in thermos cups includes a loading platform 1 and an isolation box 11. The loading platform 1 is used for batch loading of products to be inspected and is equipped with multiple sets of transmission rollers 81, which can drive the products to be conveyed laterally. A light source plate 12 and an industrial camera 13 are arranged on the top of the isolation box 11. The light source plate 12 is directed towards the thermos cup to enhance the illumination of the thread groove at the cup mouth and eliminate reflections, so as to ensure that the edge of the view of the industrial camera 13 is clear during inspection. A detection conveying module is also arranged inside the isolation box 11, located directly below the light source plate 12, for rolling and transporting the thermos cup during thread groove detection. The rolling length of the thermos cup on the detection conveying module is kept so that it can complete one full rotation. At the same time, the field of view of the industrial camera 13 is greater than the translational length of the thermos cup rolling one full rotation. The preferred detection angle of the industrial camera 13 is kept within 30 to 45 degrees obliquely facing the cup mouth. To achieve optimal imaging quality, a pushing module is also provided inside the isolation box plate 11 at the starting end of the inspection and conveying module. The pushing module includes a clamping platform 3 connected to the guide trough 14. A side plate 31 is provided on the side end of the clamping platform 3. A push plate 32 is movably embedded in the side plate 31. An installation platform 33 is provided on the side of the side plate 31 away from the clamping platform 3. A telescopic cylinder 34 is provided on the installation platform 33 and assembled with the push plate 32. A stop plate 8 is also provided inside the isolation box plate 11. The product on the loading platform 1 slides into the clamping platform 3 through the guide trough 14. When the thermos cup falls to the clamping platform 3, the stop plate 8 stops the thermos cup to prevent the product from falling. The telescopic cylinder 34 periodically extends and retracts, thereby driving the side plate 31 to push the thermos cup on the clamping platform 3, so that it enters the inspection and conveying module in sequence. The overall conveying continuity is high. At the same time, with the cooperation of rolling inspection, it has higher efficiency than the traditional fixed station clamping inspection method.

[0021] In one embodiment, the detection and conveying module includes a base box 2 and two sets of clamping transmission arms 21 arranged vertically opposite each other on the base box 2. The belts on the two sets of base boxes 2 move in the same direction, and there is a speed difference between the two sets of belts, so that the thermos cup can maintain forward translational movement while rotating. In addition, the speed difference of the belts can be controlled to adjust different feeding speeds. At the same time, the relative distance between the clamping transmission arms 21 is adjustable, which can clamp thermos cups of different sizes, so that the overall device can adapt to the actual production line requirements.

[0022] In one embodiment, the base box 2 has an annular groove 4 surrounding the outside of a set of clamping transmission arms 21. A flexible ring 41 is movably embedded in the annular groove 4. The flexible ring 41 can use a rubber transmission belt structure or a metal chain plate structure, allowing it to rotate circumferentially within the annular groove 4. A rubber roller 42 is rotatably mounted on the flexible ring 41. A brush 43 is provided at the end of the rubber roller 42 away from the flexible ring 41. The flexible ring 41 is not externally driven. When the thermos cup is conveyed to the clamping transmission arm 21, the rubber roller... 42 will abut against the outer wall of the thermos cup, and then achieve synchronous circumferential movement under the power of the cup body moving forward. When the thermos cup rolls, the rubber roller 42 will rotate under the action of friction on the outer wall of the cup. Then the brush 43 at the end will clean the thread groove of the cup mouth by rotating, so as to avoid impurities interfering with the imaging accuracy of the industrial camera 13 and eliminate detection errors. In addition, at least three sets of rubber rollers 42 are provided, so that when the clamping transmission arm 21 unloads, its loading end position will rotate back to one rubber roller 42.

[0023] In one embodiment, a rework port 5 is provided on the side of the isolation box 11, and a feeding conveyor belt 51 is provided inside the isolation box 11 below the detection conveyor module. A packaging port 52 is provided on the side of the isolation box 11 away from the rework port 5. The conveying end of the feeding conveyor belt 51 extends out from the packaging port 52, and an unloading platform 53 for receiving products on the feeding conveyor belt 51 is provided on the outside of the isolation box 11. A sorting mechanism is also provided inside the isolation box 11 at the end of the transport of the detection conveyor module, which is used to sort good thermos cups and defective thermos cups to the rework port 5 and the feeding conveyor belt 51 respectively. The rework port 5 is externally connected to the rework port, and the unloading platform 53 is externally connected to the packaging port, so that the products are automatically sorted to the corresponding processing production line. At the same time, the feeding conveyor belt 51 is arranged below the detection conveyor module, so that the overall structure of the device is compact and the space occupancy rate is smaller.

[0024] In one embodiment, the sorting mechanism includes a fixed shaft 6 disposed within the isolation box 11, a sorting plate 61 rotatably disposed on the fixed shaft 6, a limiting plate 62 fixed to the base box 2 for limiting the sorting plate 61, and a drive assembly for driving the sorting plate 61 to rotate. The sorting plate 61 is L-shaped, and its short side does not affect the circumferential movement of the rubber roller 42. When the industrial camera 13 detects a product with substandard thread precision, the drive assembly will drive the sorting plate 61 to rotate, thereby forming a slope that overlaps with the edge of the rework port 5. After the thermos cup is sent out of the clamping transmission arm 21, it will roll through the sorting plate 61. When the thermos cups pass the inspection at the rework port, the sorting plate 61 is in a state with its long side facing downwards. There is a material drop channel between its surface and the side wall of the isolation box plate 11. After the thermos cups are sent out from the clamping transmission arm 21, they will fall directly through the material drop channel. A rubber plate 82 fixed to the side wall of the isolation box plate 11 is set at the channel to cushion the thermos cups. After being cushioned, the thermos cups fall onto the feeding conveyor belt 51 and are transported in the opposite direction to the rework port. This achieves automatic sorting and diversion of products, avoids errors caused by manual classification, reduces product defect rate, and improves the manufacturer's quality control.

[0025] In one embodiment, a support platform 7 is provided inside the isolation box plate 11. The driving assembly includes a lead screw 71 rotatably mounted on the support platform 7, a sleeve block 72 reciprocating on the lead screw 71, a connecting rod 73 mounted on the sleeve block 72, and a transmission unit mounted on the connecting rod 73. The transmission unit includes a movable connecting plate 74, a connecting arm 75 mounted on the movable connecting plate 74, and a trigger plate 76 movably mounted on the fixed shaft 6 and driven by the push of the rubber roller 42. An arc-shaped groove 77 is provided on the movable connecting plate 74, and the end of the connecting rod 73 is engaged in the arc-shaped groove 77 for limited sliding. In the initial state, the transmission unit is separated from the sorting plate 61. When the industrial camera 13 detects a defective part, the lead screw 71 drives the sleeve block 72 to move by rotating. Then, the sleeve block 72 drives the movable connecting plate 74 to move synchronously through the connecting rod 73, so that the connecting arm 75 abuts against the rear side of the sorting plate 61. Then, when the thermos cup is about to be sent out from the clamping transmission arm 21, the transmission unit is ready to move. When the front end of the rubber roller 42 abuts against the trigger plate 76, it pushes the roller to rotate around the fixed shaft 6. At the same time, the trigger plate 76 rotates and abuts against the rear side of the sorting plate 61 through the connecting arm 75 to drive it to rotate synchronously, thereby forming a ramp to guide the thermos cup to slide out of the rework port 5, realizing the diversion of defective parts. When the subsequent product inspection meets the standard, the lead screw 71 drives the transmission unit to retract, and the sorting plate 61 rotates under its own weight and is stopped by the limiting plate 62, so that the material drop channel between the sorting plate 61 and the side wall of the isolation box plate 11 is reopened. The structural layout of the drive component improves the overall compactness of the device and maximizes the integration of functions without interfering with each other. At the same time, the lateral drive of the sorting plate 61 ensures that the main power for the rotation and lifting of the sorting plate 61 is through the transmission drive of the clamping transmission arm 21, avoiding the drive component structure from being directly used as a supporting component, thereby reducing the structural damage rate.

[0026] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A device for detecting thread grooves in a thermos cup, comprising a loading platform (1) and an isolation box plate (11), characterized in that: The top of the isolation box plate (11) is provided with a light source plate (12) for adjusting the detection environment and an industrial camera (13) for performing machine vision inspection. The isolation box (11) is also equipped with a detection and conveying module located directly below the light source plate (12), which is used to roll and transport the thermos cup during the thread groove detection. The isolation box (11) is also equipped with a pusher module located at the starting end of the transport of the detection conveying module. The pusher module is connected to the loading platform (1) through the guide groove (14) and is used to push the thermos cups transported by the loading platform (1) to the detection conveying module.

2. The thermos cup thread groove detection device according to claim 1, characterized in that: The detection and conveying module includes a base box (2) and two sets of clamping transmission arms (21) arranged opposite each other on the base box (2). The belts on the two sets of base boxes (2) move in the same direction and there is a speed difference between the two sets of belts.

3. The thermos cup thread groove detection device according to claim 2, characterized in that: The pushing module includes a clamping platform (3) connected to the guide groove (14). A side plate (31) is provided on the side end of the clamping platform (3). A push plate (32) is movably embedded in the side plate (31). An installation platform (33) is provided on the side of the side plate (31) away from the clamping platform (3). A telescopic cylinder (34) is provided on the installation platform (33) and assembled with the push plate (32), so that the push plate (32) can be pushed to the side of the clamping platform (3) by the drive of the telescopic cylinder (34).

4. The thermos cup thread groove detection device according to claim 2 or 3, characterized in that: The base box (2) has an annular groove (4) surrounding a set of clamping transmission arms (21). A flexible ring (41) is movably embedded in the annular groove (4). At least three sets of rubber rollers (42) are rotatably arranged on the flexible ring (41). A brush (43) for cleaning the thread groove of the thermos cup is provided at the end of the rubber roller (42) away from the flexible ring (41).

5. The thermos cup thread groove detection device according to claim 4, characterized in that: The isolation box (11) has a rework port (5) on its side, and a feeding conveyor belt (51) is provided inside it at the position below the detection conveyor module. A packaging port (52) is opened on the side of the isolation box (11) away from the rework port (5). The conveying tail end of the feeding conveyor belt (51) extends out from the packaging port (52), and an unloading platform (53) for receiving products on the feeding conveyor belt (51) is provided on the outside of the isolation box (11). The isolation box (11) is also equipped with a sorting mechanism located at the end of the transport of the inspection and conveying module, which is used to sort good quality thermos cups and defective thermos cups to the rework port (5) and the feeding conveyor belt (51) respectively.

6. The thermos cup thread groove detection device according to claim 5, characterized in that: The sorting mechanism includes a fixed shaft (6) disposed in the isolation box plate (11), a sorting plate (61) rotatably disposed on the fixed shaft (6), a limiting plate (62) fixed on the base box (2) for limiting the sorting plate (61), and a drive assembly for driving the sorting plate (61) to rotate. The sorting plate (61) is "L" shaped, and in the initial state, a channel is formed between its long side and the side wall of the isolation box plate (11) for the thermos cup to fall into the feeding conveyor belt (51); in the driven state, its long side rotates and tilts to form a ramp that leads the thermos cup out of the return port (5).

7. The thermos cup thread groove detection device according to claim 6, characterized in that: The isolation box plate (11) is provided with a support platform (7), and the driving assembly includes a lead screw (71) rotatably mounted on the support platform (7), a sleeve block (72) sleeved on the lead screw (71) and reciprocating, a connecting rod (73) mounted on the sleeve block (72), and a transmission unit mounted on the connecting rod (73). The transmission unit includes a movable connecting plate (74), a connecting arm (75) disposed on the movable connecting plate (74), and a trigger plate (76) movably sleeved on the fixed shaft (6) and driven by the rubber roller (42). The movable connecting plate (74) has an arc-shaped groove (77), and the end of the connecting rod (73) is engaged in the arc-shaped groove (77) for limited sliding.

8. The thermos cup thread groove detection device according to claim 3, characterized in that: The isolation box (11) is also equipped with a stop plate (8) that limits the mouth of the thermos cup when it falls onto the material handling platform (3).

9. The thermos cup thread groove detection device according to claim 1, characterized in that: The loading platform (1) is equipped with multiple sets of transmission rollers (81) that drive the thermos cups to the side of the feeding trough (14).

10. The thermos cup thread groove detection device according to claim 6, characterized in that: The isolation box (11) is also provided with a rubber plate (82) located below the sorting plate (61) for cushioning the thermos cups.

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