Injection molded bottle cap optical detection apparatus
The automated clamping structure of the conveyor belt and limit frame system solves the problem of manual placement and clamping required by existing optical inspection equipment, realizing automated transfer and clamping of bottle caps and improving inspection efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU DINGJIAHE AUTOMATION EQUIPMENT CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-06-12
AI Technical Summary
Existing optical inspection equipment requires manual placement and clamping of the object to be inspected, which affects inspection efficiency and is not suitable for batch inspection.
The system employs a conveyor belt and limit frame system, which uses a motor-driven transmission rod and adjusting gear structure to achieve automated clamping. The conveyor belt transports bottle caps, and the limit blocks and clamping blocks automatically clamp the bottle caps.
It enables automated transfer and clamping of bottle caps, improving detection efficiency and making it suitable for batch detection.
Smart Images

Figure CN224354306U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of optical inspection technology, specifically an optical inspection device for injection molded bottle caps. Background Technology
[0002] Optical inspection is a non-contact, high-precision method for inspecting the quality of objects using optical principles and image processing technology.
[0003] Chinese utility model patent CN222618184U discloses an optical inspection device for an optical camera: It includes a base, a support frame fixedly connected to the rear side of the top of the base, a groove on the surface of the support frame, a hydraulic cylinder within the groove, a lifting rod fixedly connected to the top of the hydraulic cylinder, the lifting rod being located on the outer side of the support frame surface, a display screen on the side of the lifting rod, a detection probe at the bottom of the lifting rod, a detection platform on the top of the base, a placement groove on the top of the detection platform, a first protective pad at the bottom of the inner cavity of the placement groove, and two sliding grooves on the top of the detection platform, each with a sliding rod slidably inserted into its inner cavity.
[0004] However, existing technologies still have shortcomings:
[0005] The above setup requires manually placing the object to be tested into the placement slot, and then rotating the threaded rod to clamp the object, which affects the detection efficiency of the device and is not suitable for batch testing. Utility Model Content
[0006] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an optical inspection device for injection-molded bottle caps to solve the problem that in the prior art, the object to be inspected needs to be manually placed in the placement slot, and then the threaded rod is rotated to clamp the object, which affects the inspection efficiency of the device and is unsuitable for batch inspection.
[0007] To achieve the above objectives, this utility model proposes an optical inspection device for injection molded bottle caps, including a mounting frame, a conveyor belt below the mounting frame, a limit frame fixedly installed inside the mounting frame, a motor fixedly installed on the limit frame, a pair of transmission rods symmetrically arranged below the limit frame, the ends of the transmission rods being rotatably connected to limit blocks, and the motor being connected to the pair of transmission rods through a transmission structure.
[0008] As a further embodiment of this utility model: the transmission structure is disposed within the limiting frame.
[0009] As a further embodiment of this utility model: the transmission structure includes an adjusting rod, an adjusting gear, and a spur rack. The spur rack and the adjusting rod are provided in a pair. The spur rack is symmetrically arranged on both sides of the adjusting gear and meshes with the adjusting gear. The adjusting rod is fixedly arranged at the end of the spur rack. The transmission rod is rotatably connected to the adjusting rod.
[0010] As a further embodiment of this utility model: the adjusting gear is rotatably disposed in the middle of the limiting frame, and the output shaft of the motor is fixedly connected to the adjusting gear.
[0011] As a further embodiment of this utility model: symmetrical limiting grooves are provided below the adjusting rod, and one end of the transmission rod connected to the adjusting rod is rotatably disposed in the limiting groove.
[0012] As a further embodiment of this utility model, a telescopic rod is fixedly provided between the limiting block and the mounting frame.
[0013] As a further embodiment of this utility model: a pair of telescopic rods are provided, and the transmission rod is rotatably disposed between the pair of telescopic rods.
[0014] As a further embodiment of this utility model: a clamping block is fixedly provided on the limiting block, and two adjusting shafts are rotatably provided on the limiting block.
[0015] As a further embodiment of this utility model: a detection box is fixedly installed below the top plate of the mounting bracket, and the detection box is equipped with a detection probe.
[0016] As a further embodiment of this invention, a laser displacement sensor is fixedly installed below the detection box.
[0017] Compared with the prior art, the beneficial effects of this utility model are:
[0018] By setting a limit block, a clamping block is fixedly mounted on the limit block, and two adjusting shafts are rotatably mounted on the limit block. A limit frame is fixedly mounted inside the mounting frame, and a motor is fixedly mounted on the limit frame. A pair of transmission rods are symmetrically arranged below the limit frame, and the ends of the transmission rods are rotatably connected to the limit block. When the motor is started, it drives the adjusting gear to rotate, thereby driving a pair of spur racks that mesh with it to move towards each other. The movement of the spur racks towards each other drives the transmission rods to move towards each other. Under the restriction of the telescopic rod, the clamping blocks move towards each other on the same horizontal plane. With the help of the conveyor belt, the bottle caps to be inspected can be transported and limited. Attached Figure Description
[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0020] Figure 2This is a schematic diagram of the clamping structure of this utility model. Figure 1 ;
[0021] Figure 3 This is a schematic diagram of the clamping structure of this utility model. Figure 2 ;
[0022] Figure 4 This is a cross-sectional view of the limiting frame of this utility model.
[0023] In the diagram: 1. Mounting frame; 2. Conveyor belt; 3. Detection box; 4. Laser displacement sensor; 5. Detection probe; 6. Limiting frame; 7. Motor; 8. Transmission rod; 9. Telescopic rod; 10. Limiting block; 11. Adjusting shaft; 12. Clamping block; 13. Adjusting rod; 14. Limiting groove; 15. Adjusting gear; 16. Straight rack. Detailed Implementation
[0024] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0025] like Figure 1-4As shown, an optical inspection device for injection molded bottle caps includes a mounting frame 1, a conveyor belt 2 below the mounting frame 1, a limit frame 6 fixedly installed inside the mounting frame 1, a motor 7 fixedly installed on the limit frame 6, and a pair of transmission rods symmetrically arranged below the limit frame 6. The ends of the transmission rods 8 are rotatably connected to limit blocks 10, which are used to limit the bottle caps to be inspected. To ensure the stability of the limit blocks 10, a telescopic rod 9 is fixedly installed between the limit blocks 10 and the mounting frame 1. A pair of telescopic rods 9 are provided, and the transmission rods 8 are rotatably positioned between the pair of telescopic rods 9. The motor 7 drives the pair of transmission rods 8 to move towards each other through a transmission structure, thereby causing the limit blocks 10 to move towards each other until the bottle cap is clamped. The transmission structure is located inside the limit frame 6 and includes an adjusting rod 13, an adjusting gear 15, and a rack 16. The adjusting gear 15 is rotatably positioned in the middle of the limit frame 6, and the output shaft of the motor 7 is fixedly connected to the adjusting gear 15. The rack 16 and adjusting rod... A pair of spur racks 16 are symmetrically arranged on both sides of the adjusting gear 15 and mesh with the adjusting gear 15. The adjusting rod 13 is fixedly set at the end of the spur rack 16. The transmission rod 8 is rotatably connected to the adjusting rod 13. The adjusting rod 13 has symmetrically opened limit grooves 14 below it. The end of the transmission rod 8 connected to the adjusting rod 13 is rotatably set in the limit groove 14. The limit block 10 is fixedly set with a clamping block 12. The limit block 10 is rotatably set with two adjusting shafts 11. Generally, the distance between a pair of adjusting shafts 11 is set to be greater than the diameter of one bottle cap and less than the diameter of two bottle caps. The bottle cap to be tested is clamped by the pair of clamping blocks 12 approaching each other. When the pair of clamping blocks 12 approach each other, they drive the pair of adjusting shafts 11 to approach each other. When the adjusting shafts 11 contact the bottle cap behind the bottle cap to be tested, they rotate, pushing the two subsequent bottle caps to maintain distance, which facilitates the subsequent clamping work. In order to increase the stability of clamping, a rubber layer is embedded in the groove of the clamping block 12.
[0026] As one embodiment of this invention, a detection box 3 is fixedly installed below the top plate of the mounting frame 1. The detection box 3 is equipped with a detection probe 5, which is used to detect the bottle cap below. A laser displacement sensor 4 is fixedly installed below the detection box 3. The laser displacement sensor 4 is used to monitor the bottle cap to be detected being transported to the bottom of the detection box 3 by the conveyor belt 2, and then detected by the detection probe 5.
[0027] Working principle:
[0028] The bottle caps to be tested are placed onto the conveyor belt 2 in sequence. The conveyor belt 1, laser displacement sensor 4, and detection probe 5 are started. The laser displacement sensor 4 is used to monitor the bottle caps to be tested as they are transported to the bottom of the detection box 3 via the conveyor belt 2. The detection probe 5 then detects the bottle caps. A pair of clamping blocks 12 are brought closer together to clamp the bottle caps to be tested. Specifically, the motor 7 is started, which drives the adjusting gear 15 to rotate, thereby driving a pair of spur racks 16 that mesh with it to move towards each other. The movement of the spur racks 16 towards each other drives the transmission rod 8 to move towards each other. Under the restriction of the telescopic rod, the clamping blocks are driven to move towards each other on the same horizontal plane. When the pair of clamping blocks 12 are brought closer together, they drive a pair of adjusting shafts 11 to move closer together. When the adjusting shafts 11 contact the bottle cap behind the bottle cap to be tested, they rotate, pushing the subsequent two bottle caps to maintain a distance, which facilitates the clamping of subsequent bottle caps.
[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.
Claims
1. An optical inspection device for injection molded bottle caps, characterized in that, The device includes a mounting frame (1), a conveyor belt (2) is provided below the mounting frame (1), a limit frame (6) is fixedly provided inside the mounting frame (1), a motor (7) is fixedly provided on the limit frame (6), a pair of transmission rods (8) are symmetrically provided below the limit frame (6), the ends of the transmission rods (8) are rotatably connected to limit blocks (10), and the motor (7) is connected to the pair of transmission rods (8) through a transmission structure.
2. The optical inspection device for injection molded bottle caps according to claim 1, characterized in that, The transmission structure is disposed within the limiting frame (6).
3. The optical inspection device for injection molded bottle caps according to claim 2, characterized in that, The transmission structure includes an adjusting rod (13), an adjusting gear (15), and a rack (16). The rack (16) and the adjusting rod (13) are provided in a pair. The rack (16) is symmetrically arranged on both sides of the adjusting gear (15) and meshes with the adjusting gear (15). The adjusting rod (13) is fixedly arranged at the end of the rack (16). The transmission rod (8) is rotatably connected to the adjusting rod (13).
4. The optical inspection device for injection molded bottle caps according to claim 3, characterized in that, The adjusting gear (15) is rotatably mounted in the middle of the limiting frame (6), and the output shaft of the motor (7) is fixedly connected to the adjusting gear (15).
5. The optical inspection device for injection molded bottle caps according to claim 4, characterized in that, The adjusting rod (13) has symmetrically provided limiting grooves (14) below it, and the end of the transmission rod (8) connected to the adjusting rod (13) is rotatably disposed in the limiting groove (14).
6. The optical inspection device for injection molded bottle caps according to claim 1, characterized in that, A telescopic rod (9) is fixedly provided between the limiting block (10) and the mounting frame (1).
7. The optical inspection device for injection molded bottle caps according to claim 6, characterized in that, The telescopic rods (9) are provided in pairs, and the transmission rod (8) is rotatably disposed between the pair of telescopic rods (9).
8. The optical inspection device for injection molded bottle caps according to claim 1, characterized in that, A clamping block (12) is fixedly provided on the limiting block (10), and two adjusting shafts (11) are rotatably provided on the limiting block (10).
9. The optical inspection device for injection molded bottle caps according to claim 1, characterized in that, A detection box (3) is fixedly installed below the top plate of the mounting bracket (1), and the detection box (3) is equipped with a detection probe (5).
10. The optical inspection device for injection molded bottle caps according to claim 9, characterized in that, A laser displacement sensor (4) is fixedly installed below the detection box (3).