A small box leak detection device after the small box is packed into a large box
By designing a device to detect missing boxes after the small boxes of pipe fittings are packed into large boxes, a photoelectric sensor and a cylinder are used to detect whether the small boxes are in place. This solves the problem of missing boxes, improves the reliability and production efficiency of packing, prevents box jamming, and ensures product quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINHAI WEIXING NEW BUILDING MATERIALS CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-02
AI Technical Summary
During the fully automated packaging process of PPR pipe fittings, sensor malfunctions or robot pick-up failures can lead to missing finished pipe fittings in small boxes, resulting in insufficient filling in large boxes, which in turn can cause quality complaints and economic losses.
Design a device for detecting missing small boxes after small boxes are packed into large boxes. The device includes a large box roller conveyor, a large box limiting and guiding mechanism, a large box positioning and abutment frame, a small box roller conveyor, a small box limiting and guiding mechanism, and a missing box detection mechanism. It uses photoelectric sensors and cylinders to detect whether the small boxes are in place, ensuring accurate packing.
By using photoelectric sensors, missing boxes can be detected in a timely manner, preventing products from entering the market, improving the reliability and efficiency of packing, preventing box jams, and ensuring product quality.
Smart Images
Figure CN224312136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipe packaging technology, and in particular to a device for detecting missing parts in the small boxes after the small boxes are packed into the large boxes. Background Technology
[0002] In the fully automated packaging production of PPR pipe fittings, a robot needs to pick up and place four smaller boxes of finished pipe fittings into a large cardboard box. Sometimes, due to sensor malfunctions, fewer smaller boxes of pipe fittings are picked up, resulting in an underfilled large box. Alternatively, insufficient air pressure during robot picking can cause boxes to fall during the process, ultimately leading to an underfilled large box. These underfilled boxes are then directly stored after sealing and robot palletizing. Once these products leave the warehouse and enter the market, they can trigger quality complaints and result in economic losses. Therefore, a device is needed to detect underfilled boxes to prevent this situation. Utility Model Content
[0003] To address the aforementioned problems, this utility model aims to provide a detection device for missing small boxes after pipe fittings are packed into large boxes, thereby solving the problem of missing finished small boxes being packed into larger boxes.
[0004] The technical problem solved by this utility model can be achieved by the following technical solution: a device for detecting missing small boxes after small boxes are packed into large boxes for pipe fittings, including a large box roller conveyor, a large box limiting and guiding mechanism, a large box positioning and abutting frame, a small box roller conveyor, a small box limiting and guiding mechanism, and a missing box detection mechanism. The large box roller conveyor and the small box roller conveyor are arranged perpendicular to each other. A large box positioning and abutting frame is provided at the outlet end of the large box roller conveyor. A large box limiting and guiding mechanism is provided on the large box roller conveyor, and a small box limiting and guiding mechanism is provided on the small box roller conveyor. A missing box detection mechanism is provided above the large box positioning and abutting frame.
[0005] The missing item detection mechanism includes a detection cylinder, a detection photoelectric sensor mounting bracket, a third small box packing position detection photoelectric sensor, and a fourth small box packing position detection photoelectric sensor. The detection cylinder is fixed on a detection cylinder mounting bracket, which is fixed above the large box positioning support bracket. The detection cylinder is equipped with a detection photoelectric sensor mounting bracket, and the third and fourth small box packing position detection photoelectric sensors are mounted on the detection photoelectric sensor mounting bracket.
[0006] The large box limiting and guiding mechanism includes a large box limiting and guiding mounting frame and a large box conveying limiting and guiding plate. The large box limiting and guiding mounting frame is fixedly installed on both sides of the large box roller conveyor. The large box conveying limiting and guiding plate is fixedly connected to the large box limiting and guiding mounting frame through a connecting rod. The two large box conveying limiting and guiding plates are symmetrically arranged.
[0007] The inlet end of the large box conveying limiting guide plate is inclined from the outside to the inside, and the outlet end of the large box conveying limiting guide plate is in contact with the large box arrival abutment plate.
[0008] A large box sensing photoelectric sensor mounting bracket is provided on the outlet end of the large box conveying limit guide plate, and a large box conveying position sensing photoelectric sensor is provided on the large box sensing photoelectric sensor mounting bracket.
[0009] The small box limiting and guiding mechanism includes a small box limiting and guiding mounting frame and a small box conveying limiting and guiding plate. The small box limiting and guiding mounting frame is fixedly installed on both sides of the small box roller conveyor. The small box conveying limiting and guiding plate is fixedly connected to the small box limiting and guiding mounting frame through a connecting rod. The two small box conveying limiting and guiding plates are symmetrically arranged.
[0010] The small box conveying limit guide plate is equipped with a first small box conveying position sensing photoelectric sensor and a second small box conveying position sensing photoelectric sensor. The first small box conveying position sensing photoelectric sensor is fixed on a first small box sensing photoelectric sensor mounting bracket, and the second small box conveying position sensing photoelectric sensor is fixed on a second small box sensing photoelectric sensor mounting bracket. The first small box sensing photoelectric sensor mounting bracket and the second small box sensing photoelectric sensor mounting bracket are fixed on the small box conveying limit guide plate.
[0011] The outlet end of the small box roller conveyor is provided with a small box positioning abutment plate, and the inlet end of the small box conveying limit guide plate is inclined from the outside to the inside, with one end of the small box conveying limit guide plate in contact with the small box positioning abutment plate.
[0012] Compared with existing technologies, this invention has the following advantages: This invention uses two small box conveying photoelectric sensors to detect whether the finished small boxes have moved into position, a large box conveying photoelectric sensor to detect whether the finished large boxes have moved into position, and a small box packing detection photoelectric sensor to detect if any small boxes are missing, allowing for timely machine stoppage and replenishment to prevent missing small boxes. The large box conveying guide limit plate provides guidance and limitation during large box conveying, ensuring uniform front-to-back positioning. The large box arrival abutment provides limitation for the large box's arrival, thereby improving the reliability of subsequent robot packing and missing box detection. Made of PTFE (polytetrafluoroethylene), it has self-lubricating properties, effectively preventing box jamming during large box conveying guidance and limitation. Similarly, the small box conveying guide limit plate provides guidance and limitation during small box conveying, ensuring uniform left-to-right positioning, thereby improving the reliability of subsequent robot pickup. Made of PTFE, it has self-lubricating properties, effectively preventing box jamming during small box conveying guidance and limitation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the structure of this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the large box limiting and guiding mechanism and the missing part detection mechanism of this utility model;
[0016] Figure 4 This is a schematic diagram of the small box limiting and guiding mechanism of this utility model;
[0017] The attached diagram is labeled as follows: 1 is the large box roller conveyor, 2 is the large box carton, 3 is the large box limit guide mounting frame, 4 is the detection cylinder, 5 is the small box roller conveyor, 6 is the second small box finished product conveyed to the designated position, 7 is the first small box finished product conveyed to the designated position, 8 is the large box induction photoelectric sensor mounting frame, 9 is the large box conveying position induction photoelectric sensor, 10 is the large box positioning abutment frame, 11 is the fourth small box packing position detection photoelectric sensor, 12 is the detection cylinder fixing frame, 13 is the first small box conveying position induction photoelectric sensor, 14 is the second small box induction photoelectric sensor mounting frame, 15 is the second small box conveying position induction photoelectric sensor, 16 is the small box limit guide mounting frame, 17 is the small box conveying limit guide plate, 18 is the first small box induction photoelectric sensor mounting frame, 19 is the detection photoelectric sensor mounting frame, 20 is the third small box finished product packed to the designated position, 21 is the fourth small box finished product packed to the designated position, 22 is the large box conveying limit guide plate, and 23 is the third small box packing position detection photoelectric sensor. Detailed Implementation
[0018] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0019] In the description of this utility model, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Combined with appendix Figures 1 to 4As shown in the figure, this embodiment discloses a device for detecting missing small boxes after small boxes are packed into large boxes for pipe fittings. It includes a large box roller conveyor 1, a large box limiting and guiding mechanism, a large box positioning and abutment frame 10, a small box roller conveyor 5, a small box limiting and guiding mechanism, and a missing box detection mechanism. The large box roller conveyor 1 and the small box roller conveyor 5 are arranged perpendicular to each other. The large box roller conveyor 1 is provided with a large box positioning and abutment frame 10 at its outlet end. The large box roller conveyor 1 is provided with a large box limiting and guiding mechanism, the small box roller conveyor 5 is provided with a small box limiting and guiding mechanism, and the missing box detection mechanism is provided above the large box positioning and abutment frame 10.
[0021] The rollers on both the large box roller conveyor 1 and the small box roller conveyor 5 are designed with rubber coating to ensure sufficient friction between the large boxes and the finished small boxes, thus ensuring the stability of the conveying process.
[0022] The missing item detection mechanism includes a detection cylinder 4, a detection photoelectric sensor mounting bracket 19, a third small box packing position detection photoelectric sensor 23, and a fourth small box packing position detection photoelectric sensor 11. The detection cylinder 4 is fixed on a detection cylinder fixing bracket 12, which is fixed above the large box positioning abutment bracket 10. The detection cylinder 4 is equipped with the detection photoelectric sensor mounting bracket 19, and the third small box packing position detection photoelectric sensor 11 and the fourth small box packing position detection photoelectric sensor 23 are installed on the detection photoelectric sensor mounting bracket 19.
[0023] The large box limiting and guiding mechanism includes a large box limiting and guiding mounting frame 3 and a large box conveying limiting and guiding plate 22. The large box limiting and guiding mounting frame 3 is fixedly installed on both sides of the large box roller conveyor 1, and the large box conveying limiting and guiding plate 22 is fixedly connected to the large box limiting and guiding mounting frame 3 through connecting rods. A large box sensing photoelectric sensor mounting frame 8 is provided on the outlet end of the large box conveying limiting and guiding plate 22, and a large box conveying positioning sensing photoelectric sensor 9 is provided on the large box sensing photoelectric sensor mounting frame 8.
[0024] The inlet end of the large box conveying limiting guide plate 22 is inclined from the outside to the inside, and the outlet end of the large box conveying limiting guide plate 22 contacts the large box arrival abutment plate 10. The two large box conveying limiting guide plates 22 are symmetrically arranged, and the inlet end formed by the two large box conveying limiting guide plates 22 tapers inward, with a straight section from the inlet end to the outlet end. The large box conveying limiting guide plate 22 provides guidance and limitation for the large boxes during conveying, ensuring the uniformity of their left and right positions. The large box conveying limiting guide plate 22 is made of polytetrafluoroethylene (PTFE), which has good self-lubricating properties and can effectively prevent the large boxes from jamming during conveying.
[0025] The small box limiting guide mechanism includes a small box limiting guide mounting frame 16 and a small box conveying limiting guide plate 17. The small box limiting guide mounting frame 16 is fixedly installed on both sides of the small box roller conveyor 5, and the small box conveying limiting guide plate 17 is fixedly connected to the small box limiting guide mounting frame 16 through a connecting rod.
[0026] The small box conveying limiting guide plate 17 is equipped with a first small box conveying positioning photoelectric sensor 13 and a second small box conveying positioning photoelectric sensor 15. The first small box conveying positioning photoelectric sensor 13 is fixed on the first small box photoelectric sensor mounting bracket 18, and the second small box conveying positioning photoelectric sensor 15 is fixed on the second small box photoelectric sensor mounting bracket 14. The first small box photoelectric sensor mounting bracket 18 and the second small box photoelectric sensor mounting bracket 14 are fixed on the small box conveying limiting guide plate 17.
[0027] The outlet end of the small box roller conveyor 5 is equipped with a small box positioning abutment plate, and the inlet end of the small box conveying limiting guide plate 17 is inclined from the outside to the inside, with one end of the small box conveying limiting guide plate 17 contacting the small box positioning abutment plate. The two small box conveying limiting guide plates 17 are symmetrically arranged, and the inlet end formed by the two small box conveying limiting guide plates 17 tapers inward, with a straight section from the inlet end to the outlet end. The small box conveying limiting guide plate 17 provides guidance and limitation during the conveying of small boxes, ensuring the uniformity of their left and right positions. The small box conveying limiting guide plate 17 is made of polytetrafluoroethylene (PTFE), which has good self-lubricating properties and can effectively prevent small boxes from jamming during conveying.
[0028] The specific implementation process of this utility model device in the production process is as follows: After the device is started, the pipe fittings begin fully automated packaging production. The finished small boxes, after being packed and sealed, are conveyed from the rear to the front into the small box roller conveyor 5. They are then guided and limited by the small box conveying guide limiting plates 17 on both sides, restricting the left and right positions of the finished small boxes within a certain range. After the two finished small boxes are conveyed to their positions, they sequentially form the first finished small box 7 and the second finished small box 6. Simultaneously, the detection signals of the first small box conveying position sensing photoelectric sensor 13 and the second small box conveying position sensing photoelectric sensor 15 are triggered sequentially, indicating that the first and second finished small boxes have indeed arrived in place. Simultaneously, the large carton 2 is conveyed from the left to the right into the large carton roller conveyor 1. It is then guided and limited by the large carton guide limiting plates 22 on both sides, restricting the front and rear positions of the large carton 2 within a certain range. The large carton 2 is conveyed to the right and abutted by the large carton arrival abutment frame 10. Simultaneously, the signal of the large carton conveying position sensing photoelectric sensor 9 is triggered, indicating that the large carton 2 has indeed arrived in place. Then, the robot at the back end picks up the two finished small boxes from the small box roller conveyor 5 and loads them into the large carton 2. This action is repeated twice, so that the large carton 2 contains four finished small boxes. Then, the detection cylinder 4 extends, causing the detection photoelectric sensor mounting bracket 19 and its attached third small box loading detection photoelectric sensor 23 and fourth small box loading detection photoelectric sensor 11 to move to the left. After moving to the left, the third small box loading detection photoelectric sensor 23 and the fourth small box loading detection photoelectric sensor 11 start to trigger for detection. If the small box conveying position detection photoelectric sensor does not trigger falsely and no boxes are dropped during the robot's picking process, and both the third small box loading detection photoelectric sensor 23 and the fourth small box loading detection photoelectric sensor 11 can detect the finished small boxes, it means that the large carton 2 is normally filled with four finished small boxes. Then, the detection cylinder 4 drives the detection photoelectric sensor mounting bracket 19 back to its original position. The palletizing robot at the back end grabs the large carton 2 along with the finished small boxes inside and performs sealing and synchronous palletizing processing. If the photoelectric sensor for the small box being conveyed to its position malfunctions or a box is dropped during the robot's pickup process, it indicates that there are missing small boxes in the large carton 2. If the photoelectric sensors 23 and 11 for detecting the third and fourth small boxes fail to detect all the missing small boxes, it means there must be gaps in the positions of the third and fourth small boxes (20 and 21) in the large carton 2. The detection cylinder 4 then moves the photoelectric sensor mounting bracket 19 back to its original position, and the entire production system alarms and stops, notifying the operator. The operator replenishes the missing small boxes in the large carton 2 and resets it. Afterward, the palletizing robot at the rear picks up the large carton 2 along with the missing small boxes and performs sealing and palletizing. This process is repeated until the device completes its operation.
[0029] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the utility model. Any simple modifications, equivalent changes, or alterations made to the above embodiments based on the technical principles of the present utility model shall still fall within the scope of the technical solution of the present utility model.
Claims
1. A device for detecting missing small boxes after a pipe fitting is packed into a large box, comprising a large box roller conveyor (1), a large box limiting and guiding mechanism, a large box positioning and abutment frame (10), a small box roller conveyor (5), a small box limiting and guiding mechanism, and a missing box detection mechanism, characterized in that: The large box roller conveyor (1) and the small box roller conveyor (5) are arranged perpendicularly to each other. The outlet end of the large box roller conveyor (1) is provided with a large box positioning and abutment frame (10). The large box roller conveyor (1) is provided with a large box limiting and guiding mechanism. The small box roller conveyor (5) is provided with a small box limiting and guiding mechanism. A missing loading detection mechanism is provided above the large box positioning and abutment frame (10).
2. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 1, is characterized in that: The missing item detection mechanism includes a detection cylinder (4), a detection photoelectric sensor mounting bracket (19), a third small box filling position detection photoelectric sensor (23), and a fourth small box filling position detection photoelectric sensor (11). The detection cylinder (4) is fixed on the detection cylinder fixing bracket (12), which is fixed above the large box filling position abutment bracket (10). The detection cylinder (4) is provided with the detection photoelectric sensor mounting bracket (19), and the third small box filling position detection photoelectric sensor (23) and the fourth small box filling position detection photoelectric sensor (11) are provided on the detection photoelectric sensor mounting bracket (19).
3. The device for detecting missing parts of a small box after a large box is filled with pipe fittings, as described in claim 1, is characterized in that: The large box limiting guide mechanism includes a large box limiting guide mounting frame (3) and a large box conveying limiting guide plate (22). The large box limiting guide mounting frame (3) is fixedly installed on both sides of the large box roller conveyor (1). The large box conveying limiting guide plate (22) is fixedly connected to the large box limiting guide mounting frame (3) through a connecting rod. The two large box conveying limiting guide plates (22) are symmetrically arranged.
4. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 3, is characterized in that: The inlet end of the large box conveying limit guide plate (22) is inclined from the outside to the inside, and the outlet end of the large box conveying limit guide plate (22) is in contact with the large box positioning abutment frame (10).
5. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 3, is characterized in that: A large box sensing photoelectric sensor mounting bracket (8) is provided on the outlet end of the large box conveying limit guide plate (22), and a large box conveying position sensing photoelectric sensor (9) is provided on the large box sensing photoelectric sensor mounting bracket (8).
6. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 1, is characterized in that: The small box limiting guide mechanism includes a small box limiting guide mounting frame (16) and a small box conveying limiting guide plate (17). The small box limiting guide mounting frame (16) is fixedly installed on both sides of the small box roller conveyor (5). The small box conveying limiting guide plate (17) is fixedly connected to the small box limiting guide mounting frame (16) through a connecting rod. The two small box conveying limiting guide plates (17) are symmetrically arranged.
7. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 6, is characterized in that: The small box conveying limit guide plate (17) is equipped with a first small box conveying position sensing photoelectric sensor (13) and a second small box conveying position sensing photoelectric sensor (15).
8. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 7, is characterized in that: The first small box conveying position sensing photoelectric sensor (13) is fixed on the first small box sensing photoelectric sensor mounting bracket (18), the second small box conveying position sensing photoelectric sensor (15) is fixed on the second small box sensing photoelectric sensor mounting bracket (14), and the first small box sensing photoelectric sensor mounting bracket (18) and the second small box sensing photoelectric sensor mounting bracket (14) are fixed on the small box conveying limit guide plate (17).
9. The device for detecting missing parts of a small box after a pipe fitting is packed into a large box, as described in claim 6, is characterized in that: The outlet end of the small box roller conveyor (5) is provided with a small box positioning abutment plate, and the inlet end of the small box conveying limit guide plate (17) is inclined from the outside to the inside, with one end of the small box conveying limit guide plate (17) in contact with the small box positioning abutment plate.