Sealing cap detection equipment
By combining vision acquisition and length detection components in the cap inspection equipment, and using a servo motor to drive the material tray to convey the caps, the simultaneous detection of cap length and concentricity is achieved, solving the problem of excessively long detection time in the existing technology and improving production efficiency.
Patent Information
- Application Number
- CN202411678846.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-22
- Publication Date
- 2025-11-18
AI Technical Summary
In existing technologies, the length and concentricity of the cap need to be tested separately, which increases the testing time and affects the delivery time.
A cap inspection device was designed, which combines a vision acquisition component and a length detection component. The device uses a servo motor to drive a tray to transport caps, and the vision acquisition component is used to acquire images and detect length, so as to achieve synchronous inspection of caps.
This improved testing efficiency, enabling simultaneous testing of cap length and concentricity, reducing testing time, and increasing production efficiency.
Smart Images

Figure CN120970480A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of cap detection equipment, in particular to a cap detection equipment. BACKGROUND
[0002] The cap is a polyolefin material product made of heat shrinkage technology; it is tightly wrapped on objects such as wires and cables at high temperature, and plays the role of insulation, protection, identification, etc. After production, the length and concentricity of the cap need to be detected, and the existing detection method needs to detect two data separately, which undoubtedly increases the detection time and greatly affects the delivery period. SUMMARY
[0003] In view of the defects of the prior art, the main purpose of the present application is to overcome the shortcomings of the prior art, and a cap detection equipment is disclosed, which comprises a rack, a visual acquisition assembly, a tray, a material guide frame, a length detection assembly and a servo motor. The material guide frame is arranged on the rack, a material guide cavity matched with the tray is arranged on the material guide frame, and an opening is arranged below the material guide frame. The side surface of the tray is provided with a plurality of troughs at equal intervals, the tray is arranged in the material guide cavity and connected with the servo motor, the tray is driven to rotate by the servo motor, the cap is conveyed to the visual acquisition assembly and the length detection assembly, the image acquisition of the cap is carried out by the visual acquisition assembly, and the length of the cap is acquired by the length detection assembly.
[0004] Further, the cross section of the trough is in U-shaped structure.
[0005] Further, a material sorting plate is arranged on the material guide frame, and a first inclined surface is arranged on the material sorting plate.
[0006] Further, the material sorting plate is fixed with the material guide frame through an adjusting plate, and a waist-shaped hole is arranged on the adjusting plate.
[0007] Further, an adjusting assembly is arranged at the tail of the trough of the tray, the adjusting assembly comprises a screw rod and a tail plate, the screw rod is threadedly matched with the tray, and the tail plate is arranged at the end of the screw rod.
[0008] Further, the visual acquisition assembly comprises a camera, a lead screw sliding table and a fill light, the camera and the fill light are arranged on the machine table through the lead screw sliding table, and the height positions of the camera and the fill light are adjusted by the lead screw sliding table.
[0009] Furthermore, the length detection component includes a displacement sensor and a contact block. The displacement sensor is disposed on the guide frame, and the contact block is connected to the displacement sensor. A guide section and a measuring section are continuously disposed on the contact block. The guide section is an inclined surface, and the measuring section is a plane.
[0010] Furthermore, it also includes a sorting component, which is used to classify and store qualified and unqualified caps.
[0011] Furthermore, the powder assembly includes a first guide pipe, a second guide pipe, a baffle plate, and a cylinder. The first guide pipe and the second guide pipe are mounted on the frame, with their upper ends positioned at the opening of the guide frame. The baffle plate is mounted on the cylinder, and the cylinder drives the baffle plate to move horizontally to block part of the opening.
[0012] The beneficial effects achieved by this invention are as follows:
[0013] This invention uses a material tray in conjunction with a servo motor. The servo motor drives the material tray to move the caps between various workstations, and the material tray is set horizontally. This integrates visual inspection and length inspection, greatly improving inspection efficiency. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of a cap testing device according to the present invention;
[0015] Figure 2 for Figure 1 A schematic diagram of the 3D structure of the hidden visual acquisition component;
[0016] Figure 3 This is a schematic diagram of the connection structure between the material tray and the servo motor.
[0017] Figure 4 This is a schematic diagram showing the interaction between the guide frame and the dispensing assembly;
[0018] Figure 5 for Figure 4 A three-dimensional structural diagram from another perspective;
[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the length detection component;
[0020] Figure 7 This is a schematic diagram of visual inspection.
[0021] Figure 8 This is a schematic diagram illustrating the usage state of a cap-sealing detection device according to the present invention;
[0022] The attached figures are labeled as follows:
[0023] 1. Frame, 2. Vision acquisition component, 3. Material tray, 4. Guide rack, 5. Material sorting plate, 6. Length detection component, 7. Servo motor, 8. Material distribution component, 9. Adjustment component, 21. Camera, 22. Screw slide, 23. Fill light, 31. Material trough, 41. Opening, 51. Adjustment plate, 52. Waist-shaped hole, 53. First inclined surface, 61. Displacement sensor, 62. Contact block, 621. Material guide section, 622. Measuring section, 81. First material guide tube, 82. Second material guide tube, 83. Baffle plate, 84. Cylinder, 91. Screw, 92. Tail plate. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.
[0025] A cap testing device, such as Figures 1-8 As shown, the device includes a frame 1, a vision acquisition component 2, a material tray 3, a guide frame 4, a length detection component 6, and a servo motor 7. The guide frame 4 is mounted on the frame 1 and has a guide cavity that cooperates with the material tray 3. An opening 41 is provided at the bottom of the guide frame 4. Several material slots 31 are evenly spaced on the side of the material tray 3. The material tray 3 is placed in the guide cavity and connected to the servo motor 7. The servo motor 7 drives the material tray 3 to rotate, conveying the caps to the vision acquisition component 2 and the length detection component 6. The vision acquisition component 2 is used to acquire images of the caps, and the length detection component 6 is used to acquire the length of the caps.
[0026] In this embodiment, as Figures 1-8 As shown, the feeding position of the cap, the vision acquisition component 2, and the length detection component 6 are respectively set at the 9 o'clock, 12 o'clock, and 3 o'clock positions. The discharge pipe of the vibratory feeder is connected to the feeding position of the cap, and the cap is fed into the material trough 31 through the vibratory feeder. The material tray 3 is driven to rotate by the servo motor 7. When the cap moves to the vision acquisition component 2, the vision acquisition component 2 acquires an image of the cap. The detection principle is that the image information is a projected view. The computer identifies the distance of the protrusion outside the center circle and sets a threshold. If it is within the range, it is qualified; otherwise, it is unqualified. Then the cap moves to the length detection component 6 for length detection. If the detection result is within the set range, it is qualified; otherwise, it is unqualified. The material tray 3 continues to rotate, and the cap falls from the opening 41.
[0027] In one embodiment, such as Figures 1-8As shown, the cross-section of the material trough 31 is U-shaped. The material trough 31 cooperates with the guide frame 4 to close the side opening of the material trough 31, and the sealing cap is inserted from the end of the material trough 31. When the material trough 31 rotates to the opening 41, since there is no obstruction from the guide frame 4, the sealing cap falls from the side opening of the material trough 31.
[0028] In one embodiment, such as Figures 1-8 As shown, a material guide plate 5 is provided on the material guide frame 4, and a first inclined surface 53 is provided on the material guide plate 5. The sealing cap is guided into the material trough 31 through the first inclined surface 53.
[0029] In one embodiment, such as Figures 1-8 As shown, the material handling plate 5 is fixed to the guide frame 4 via an adjusting plate 51, and the adjusting plate 51 is provided with a waist-shaped hole 52. Preferably, two waist-shaped holes 52 are arranged in parallel.
[0030] In one embodiment, such as Figures 1-8 As shown, an adjustment component 9 is provided at the tail of the material trough 31 of the material tray 3. The adjustment component 9 includes a screw 91 and a tail plate 92. The screw 91 is threaded into the material tray 3, and the tail plate 92 is located at the end of the screw 91. By rotating the screw 91, the position of the tail plate 92 is adjusted axially, thereby meeting the requirements for cap testing of different lengths.
[0031] In one embodiment, such as Figures 1-8 As shown, the visual acquisition component 2 includes a camera 21, a lead screw slide 22, and a fill light 23. The camera 21 and the fill light 23 are mounted on the machine base 1 via the lead screw slide 22, and the height and position of the camera 21 and the fill light 23 are adjusted using the lead screw slide 22.
[0032] In one embodiment, such as Figures 1-8 As shown, the length detection component 6 includes a displacement sensor 61 and a contact block 62. The displacement sensor 61 is mounted on the guide frame 4, and the contact block 62 is connected to the displacement sensor 61. A guide section 621 and a measuring section 622 are continuously arranged on the contact block 62. The guide section 621 is an inclined surface, and the measuring section 622 is a flat surface. During detection, the material tray 3 rotates to move the cap towards the contact block 62. After passing through the guide section 621, the cap moves, pushing the contact block 62. When the cap is released from the measuring section 622, the displacement data of the displacement sensor 61 is collected, and the length of the cap is then determined.
[0033] In one embodiment, such as Figures 1-8As shown, it also includes a material sorting component 8, which sorts and stores qualified and unqualified caps. The material sorting component 8 includes a first guide pipe 81, a second guide pipe 82, a baffle plate 83, and a cylinder 84. The first and second guide pipes 81 and 82 are mounted on the frame 1, with their upper ends positioned at the opening 41 of the guide frame 4. The baffle plate 83 is mounted on the cylinder 84, which drives the baffle plate 83 to move horizontally, thus blocking part of the opening 41. Specifically, when the cylinder 84 drives the baffle plate 83 to extend, it blocks a portion of the opening 41, aiming to block the material trough 31 to ensure the caps can pass through the current position. The servo motor 6 drives the material tray 3 to continue rotating until the next stop, where there is no obstruction, and the caps fall from that point into the first guide pipe 81. In this embodiment, the first guide tube 81 is used to guide unqualified caps, and the second guide tube 82 is used to guide qualified caps, thus achieving classified storage of caps. When a cap is qualified, the cylinder 84 drives the baffle plate 83 to retract. At this time, the baffle plate 83 does not block the opening. When the cap moves to the opening 41, it immediately falls into the second guide tube 82. According to the detection structure, the cylinder 84 controls the horizontal movement of the baffle plate 83, thereby switching the caps to fall into the first guide tube 81 and the second guide tube 82.
[0034] When using this invention, as Figures 1-8 As shown, the inlet end of the cap is connected to a vibratory feeder. The vibratory feeder arranges the caps and feeds them into the material trough 31. The position of the tail plate 92 is adjusted according to the cap length, so that one end of the cap is pressed against the tail plate 92 while the other end protrudes from the other end of the material trough 31. The servo motor 7 drives the material tray 3 to rotate. First, the material guide plate 5 inserts the caps into the material trough 31, and then pushes them further into the trough 31 along the first inclined surface 53 of the material guide plate 5. The material tray 3 continues to rotate. When it moves to the vision inspection component 2, an image is acquired, and the computer determines whether it is qualified. Then it rotates to the length detection component 6, where the contact block 62 pushes the displacement sensor 61 to acquire the displacement, and the cap length is calculated. Finally, it rotates to the opening. According to the detection structure, the cylinder 84 controls the baffle plate 83 to extend or retract, sending qualified caps into the second guide pipe 82 and unqualified caps into the first guide pipe 81. This completes the inspection of one cap.
[0035] The above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Any modifications or equivalent substitutions made to the present invention without departing from the spirit and scope thereof should be covered within the protection scope of the claims of the present invention.
Claims
1. A capping detection device, characterized in that, The device includes a frame, a vision acquisition component, a material tray, a guide frame, a length detection component, and a servo motor. The guide frame is mounted on the frame and has a guide cavity that mates with the material tray. An opening is located at the bottom of the guide frame. Several material slots are evenly spaced on the side of the material tray. The material tray is placed inside the guide cavity and connected to the servo motor. The servo motor drives the material tray to rotate, conveying the caps to the vision acquisition component and the length detection component. The vision acquisition component acquires images of the caps, and the length detection component measures the length of the caps.
2. The cap testing device according to claim 1, characterized in that, The cross-section of the trough is U-shaped.
3. The capping detection device according to claim 1, characterized in that, The guide frame is provided with a material sorting plate, and the material sorting plate is provided with a first inclined surface.
4. The cap testing device according to claim 3, characterized in that, The feeding plate is fixed to the guide frame by an adjusting plate, and the adjusting plate is provided with a waist-shaped hole.
5. The cap testing device according to claim 1, characterized in that, An adjustment assembly is provided at the tail end of the material trough of the material tray. The adjustment assembly includes a screw and a tail plate. The screw is threaded into the material tray, and the tail plate is located at the end of the screw.
6. The capping detection device according to claim 1, characterized in that, The visual acquisition component includes a camera, a lead screw slide, and a fill light. The camera and the fill light are mounted on the machine platform via the lead screw slide, and the height and position of the camera and the fill light are adjusted using the lead screw slide.
7. The capping detection device according to claim 1, characterized in that, The length detection component includes a displacement sensor and a contact block. The displacement sensor is disposed on the guide frame, and the contact block is connected to the displacement sensor. A guide section and a measuring section are continuously disposed on the contact block. The guide section is an inclined surface, and the measuring section is a plane.
8. The cap testing device according to claim 1, characterized in that, It also includes a sorting component, which is used to classify and store qualified and unqualified caps.
9. A cap testing device according to claim 8, characterized in that, The powder assembly includes a first guide pipe, a second guide pipe, a baffle plate, and a cylinder. The first guide pipe and the second guide pipe are mounted on the frame, with their upper ends positioned at the opening of the guide frame. The baffle plate is mounted on the cylinder, and the cylinder drives the baffle plate to move horizontally to block part of the opening.