Positionable clamped food packaging nondestructive testing device

Abstract

The utility model relates to food outer package detection device field especially, and more particularly to a kind of food outer package nondestructive testing device of positionable clamping, technical problem: the food packaging box conveyed by current conveying machine is prone to deviation, needs manual auxiliary righting when reaching detection machine, and detection is very troublesome;Technical scheme: a kind of food outer package nondestructive testing device of positionable clamping, including detection machine, rack, crossbeam, rotary motor, air ring, air nozzle, lateral image acquisition module, forward image acquisition module, positioning assembly, just-in-time component;The utility model can support three sides to the food packaging box conveyed on conveying machine by the positioning assembly and just-in-time component set on detection machine, and finally clamping locking, without manual auxiliary righting packaging box, solve the food packaging box conveyed by current conveying machine is prone to deviation, needs manual auxiliary righting when reaching detection machine, and detection is very troublesome problem.

Description

Technical Field

[0001] This utility model relates to the field of food outer packaging inspection devices, and in particular to a non-destructive inspection device for food outer packaging that can be positioned and clamped. Background Technology

[0002] In the food production industry, cardboard boxes are inevitably used as outer packaging for large-scale food transportation. Because food is different from ordinary products, for food safety reasons, the cardboard boxes used for packaging must be intact and undamaged to prevent the food inside from being contaminated. Before food is packed, the packaging boxes must undergo visual inspection to ensure their integrity.

[0003] Currently, most food carton packaging material inspections involve continuously conveying the packaging via a conveyor belt to an inspection machine for non-destructive visual inspection. The machine checks for any damage, and qualified cartons continue to be conveyed for food packaging, while damaged cartons are rejected. However, food cartons come in various sizes, and the conveyor belt width is generally greater than the width of the cartons. During the conveying process, the cartons may become misaligned due to continuous friction and inertia. When they reach the inspection machine, the surface may not be aligned with the machine, requiring manual straightening, which is very troublesome.

[0004] Therefore, in view of the fact that existing food packaging boxes are prone to misalignment when transported by conveyor and cannot be aligned with the image acquisition module of the inspection machine, requiring manual assistance to straighten them and making the inspection very troublesome, a non-destructive visual inspection device that can automatically position and straighten the packaging boxes can be designed. Utility Model Content

[0005] To overcome the problem that existing food packaging boxes transported by conveyor are prone to misalignment, requiring manual assistance to straighten them upon arrival at the inspection machine, making inspection very troublesome.

[0006] The technical solution of this utility model is as follows: a non-destructive testing device for food outer packaging that can be positioned and clamped, comprising a testing machine, a frame, a crossbeam, a rotary motor, an air ring, air nozzles, a lateral image acquisition module, a frontal image acquisition module, a positioning component, and a placement component; the testing machine has two units, which are respectively installed on the left and right sides of a conveyor. A frame is fixedly installed on the upper end of the testing machine, and a crossbeam parallel to the top of the conveyor is fixedly connected between the upper ends of the frame. A rotary motor is installed on the upper end of the crossbeam, and a hollow air ring with an external blower is provided below the crossbeam. The air ring is radiated through the middle of the air ring. Several rods are fixedly connected to the drive shaft of the rotary motor. Eight to twelve air nozzles that blow air downwards at a 45-degree angle are installed around the inside of the air ring. Two symmetrical side image acquisition modules are installed at the lower end of the air ring via a hanger. A front image acquisition module is installed in the middle of the air ring. Both the side and front image acquisition modules are connected to the detection machine and respectively detect and identify the side and bottom walls of the food packaging box. The frame is equipped with a positioning component that clamps and locks the packaging box in opposite directions. A positioning component that pushes the packaging box into the detection position is installed on the side of the crossbeam facing the conveyor conveying direction.

[0007] Preferably, the lateral image acquisition module and the frontal image acquisition module respectively capture images of the side wall of the food packaging box opposite to them, and then send the image signals to the microcontroller in the inspection machine. The microcontroller processes the image signals, identifies whether there is any visible damage on the side wall of the packaging box, and records the inspection data. Workers use the data recorded by the inspection machine to reject the corresponding damaged packaging boxes. For details, please refer to the product inspection equipment disclosed in the patent document with announcement number CN218823975U or the multi-directional visual inspection device disclosed in the patent document with announcement number CN218865789U.

[0008] Preferably, a through hole is opened on the outer wall of the air ring, which is connected to the air outlet channel of an external blower through a flexible hose. An LED light strip is embedded in the inner wall of the air ring. Both the blower and the LED light strip are powered by external mains electricity. During the continuous conveying of food packaging boxes by the conveyor, the external blower runs continuously, drawing air into the air ring through the air delivery hose and sending it out through the air nozzle, blowing it onto the surface of the packaging box below to remove the adhering dust and paper scraps. During nighttime inspection, the LED light strip forms a ring light source above the packaging box to provide illumination.

[0009] Preferably, the suspension between the lateral image acquisition module and the air ring is a suspension rod consisting of two interlocking rods. The two rods are fixed together by bolts. The height of the lateral image acquisition module can be adjusted by extending and retracting the two rods. The image acquisition range can be adjusted for food packaging boxes of different heights. In practical applications, rods fixed by a pin-locking structure or other telescopic and adjustable structures can also be used as suspension rods.

[0010] Preferably, the positioning components include a moving platform and a cylinder; a through slot is longitudinally opened in the middle of the frame, the moving platform is set inside the through slot and is driven to lift by a linear motor module installed on the side wall of the through slot, and a cylinder is installed on the side of the moving platform facing away from the conveyor. The moving platform is driven to lift along the frame by a linear motor, providing sufficient lower space for flipping the packaging box, so that the flipping of the packaging box is not obstructed by the conveyor. In actual use, hydraulic cylinders, screw motors and other equipment can also be used to drive the moving platform to lift instead of a linear motor.

[0011] Preferably, the positioning assembly also includes a steering motor and a positioning clamp. The steering motor is mounted on the piston rod end of the cylinder, and a cylindrical positioning clamp with a surface covered with an anti-slip silicone sleeve is fixedly mounted on the drive shaft of the steering motor. The cylinder drives the steering motor and the positioning clamp to move towards the side wall of the food packaging box. When the packaging box is in an off-center state, the contact points between the positioning clamps on the left and right sides and the side wall of the packaging box are asymmetrical. With continuous force application, a lateral force that can rotate the packaging box is generated, and the packaging box naturally rotates and straightens, eventually allowing the positioning clamp to fully abut against the side wall of the food packaging box, clamping and locking the packaging box in opposite directions. The steering motor drives the positioning clamp to rotate 180 degrees, and through the static friction between the positioning clamp and the packaging box, the packaging box is rotated together, so that the bottom wall of the packaging box faces upward, which is convenient for the forward image acquisition module to recognize and detect it.

[0012] Preferably, the positioning assembly includes a cantilever frame, a bearing seat, and a shaft. The cantilever frame is fixedly installed at the front end of the crossbeam, and the front end of the cantilever frame is fixedly connected to a bearing seat that is on the same horizontal plane as the air ring. The upper end of the shaft is movably connected to the inside of the bearing seat, and the shaft rotates around its own upper structure as an axis, causing the lower end of the shaft to move closer to or away from the packaging box.

[0013] Preferably, the positioning assembly also includes a flip motor and a support head; a flip motor is installed on one side of the shaft seat, the upper end of the shaft is fixedly connected to the drive shaft of the flip motor, and a cylindrical support head is fixedly connected to the lower end of the shaft. The surface of the support head is covered with an anti-slip silicone sleeve. The flip motor drives the shaft to rotate, so that the support head is close to the packaging box. During the process of the packaging box being pushed in the opposite direction by the positioning clamp, the support head is supported on the other side wall of the packaging box, preventing the packaging box from moving out of the image acquisition range of the lateral image acquisition module due to the transmission relationship of the conveyor, and ensuring that the side wall of the packaging box is directly opposite the center of the lateral image acquisition module when it is locked by the positioning clamp.

[0014] The beneficial effects of this utility model are:

[0015] 1. The positioning and positioning components on the inspection machine can provide three-sided positioning support for the food packaging boxes conveyed on the conveyor. As the edge of the packaging box contacts the positioning component, the packaging box is gradually aligned and finally clamped and locked due to the asymmetrical force. The positioning component pushes the clamped packaging box to the position facing the image acquisition module, ensuring that the side wall of the packaging box can be fully recognized by the side image acquisition module. No manual assistance is required to straighten the packaging box, reducing labor input.

[0016] 2. By using the air ring equipped with the lateral image acquisition module and the air nozzles on it, the incoming packaging boxes can be blown away by air during the inspection process to remove dust and paper scraps from the surface and avoid affecting the inspection results. Attached Figure Description

[0017] Figure 1 The diagram shown is a first three-dimensional structural schematic of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0018] Figure 2 The diagram shown is a second three-dimensional structural schematic of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0019] Figure 3 The diagram shown is a three-dimensional structural schematic of the air ring of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0020] Figure 4 The diagram shown is a three-dimensional structural schematic of the air ring of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0021] Figure 5 The diagram shown is a three-dimensional structural schematic of the positioning component of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0022] Figure 6 The diagram shown is a three-dimensional structural schematic of the positioning component of the non-destructive testing device for food outer packaging that can be positioned and clamped according to this utility model.

[0023] Explanation of reference numerals in the attached drawings: 1. Inspection machine; 2. Frame; 3. Crossbeam; 4. Rotary motor; 5. Air ring; 6. Air nozzle; 7. Lateral image acquisition module; 8. Frontal image acquisition module; 11. Hanging rod; 901. Moving stage; 902. Cylinder; 903. Steering motor; 904. Positioning clamp; 1001. Cantilever frame; 1002. Shaft seat; 1003. Shaft; 1004. Tilting motor; 1005. Handrail head. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0025] Please see Figure 1-4 This utility model provides an embodiment: a non-destructive testing device for food outer packaging that can be positioned and clamped, including a testing machine 1, a frame 2, a crossbeam 3, a rotary motor 4, an air ring 5, an air nozzle 6, a lateral image acquisition module 7, a frontal image acquisition module 8, a positioning component, and a placement component; there are two testing machines 1, which are respectively installed on the left and right sides of the conveyor. The frame 2 is fixedly installed on the upper end of the testing machine 1, and the crossbeam 3 parallel to the top of the conveyor is fixedly connected between the upper ends of the frame 2. The rotary motor 4 is installed on the upper end of the crossbeam 3, and a hollow air ring 5 with an external blower is provided below the crossbeam 3. The air ring 5 has radially distributed air rings in the middle. Several rods are fixedly connected to the drive shaft of the rotary motor 4. Eight to twelve air nozzles 6 are installed around the inner circumference of the air ring 5, supplying air downwards at a 45-degree angle. Two symmetrical lateral image acquisition modules 7 are installed at the lower end of the air ring 5 via a hanger. A frontal image acquisition module 8 is installed in the middle of the air ring 5. Both the lateral and frontal image acquisition modules 7 and 8 are electrically connected to the detection machine 1 and respectively detect and identify the side and bottom walls of the food packaging box. A positioning component for clamping and locking the packaging box is installed on the frame 2. A positioning component for pushing the packaging box into the detection position is installed on the side of the crossbeam 3 facing the conveyor's conveying direction. Lateral image acquisition... Module 7 and the forward image acquisition module 8 respectively capture images of the side wall of the food packaging box opposite to them, and then send the image signals to the microcontroller in the inspection machine 1. The microcontroller processes the image signals, identifies whether there is any visible damage on the side wall of the packaging box, and records the inspection data. An opening is formed in the outer wall of the air ring 5, which is connected to the air outlet of an external blower via a flexible hose. An LED light strip is embedded in the inner wall of the air ring 5. Both the blower and the LED light strip are powered by external AC power. During the continuous conveying of the food packaging box by the conveyor, the external blower runs continuously, drawing air into the air ring 5 through the air delivery hose. The air is blown out by nozzle 6 and blown onto the surface of the packaging box below, removing adhering dust and paper scraps. During nighttime inspection, an LED light strip forms a ring light source above the packaging box to provide illumination. The suspension between the lateral image acquisition module 7 and the air ring 5 is a suspension rod 11 consisting of two interlocking rods, which are fixed together by bolts. The height of the lateral image acquisition module 7 can be adjusted by extending and retracting the two rods, thus adjusting the image acquisition range for food packaging boxes of different heights. In practical applications, rods fixed by a pin-lock structure or other telescopic and adjustable structures can also be used as suspension rods.

[0026] Please see Figure 5In this embodiment, the positioning component includes a moving stage 901 and a cylinder 902. A longitudinal through-slot is provided in the middle of the frame 2. The moving stage 901 is located inside the through-slot and is driven to rise and fall by a linear motor module mounted on the side wall of the through-slot. A cylinder 902 is installed on the side of the moving stage 901 facing away from the conveyor. The moving stage 901 is driven to rise and fall along the frame 2 by a linear motor, providing sufficient lower space for flipping the packaging box, ensuring that the box flipping is not obstructed by the conveyor. In actual use, hydraulic cylinders, screw motors, or other equipment can be used instead of linear motors to drive the moving stage 901 to rise and fall. The positioning component also includes a steering motor 903 and a positioning clamp 904. The steering motor 903 is mounted on the piston rod end of the cylinder 902, and a positioning clamp 904 is fixedly mounted on the drive shaft of the steering motor 903. A cylindrical positioning clamp 904 with a non-slip silicone sleeve is driven by a cylinder 902 to move the steering motor 903 and the positioning clamp 904 toward the side wall of the food packaging box. When the packaging box is in an off-center state, the contact points between the positioning clamps 904 on the left and right sides and the side wall of the packaging box are asymmetrical. With continuous force, a lateral force is generated on the packaging box, which can rotate the packaging box. The packaging box naturally rotates and straightens, and finally the positioning clamp 904 fully abuts against the side wall of the food packaging box, clamping and locking the packaging box in opposite directions. The steering motor 903 drives the positioning clamp 904 to rotate 180 degrees. Through the static friction between the positioning clamp 904 and the packaging box, the packaging box is rotated together, so that the bottom wall of the packaging box faces upward, which is convenient for the forward image acquisition module 8 to recognize and detect it.

[0027] Please see Figure 6 In this embodiment, the positioning assembly includes a cantilever frame 1001, a bearing seat 1002, and a shaft 1003. The cantilever frame 1001 is fixedly installed at the front end of the crossbeam 3. The bearing seat 1002, which is on the same horizontal plane as the air ring 5, is fixedly connected to the front end of the cantilever frame 1001. The upper end of the shaft 1003 is movably connected to the inner side of the bearing seat 1002. The shaft 1003 rotates around its upper structure as an axis, causing the lower end of the shaft 1003 to move closer to or away from the packaging box. The positioning assembly also includes a tilting motor 1004 and a support head 1005. The tilting motor 1004 is installed on one side of the bearing seat 1002, and the upper end of the shaft 1003 is connected to the tilting motor 1005. The drive shaft of the motor 1004 is fixedly connected, and a cylindrical support head 1005 is fixedly connected to the lower end of the shaft 1003. The surface of the support head 1005 is covered with an anti-slip silicone sleeve. The rotating motor 1004 drives the shaft 1003 to rotate, so that the support head 1005 is close to the packaging box. During the process of the packaging box being pushed in the opposite direction by the positioning clamp 904, the support head 1005 is supported on the other side wall of the packaging box, preventing the packaging box from moving out of the image acquisition range of the lateral image acquisition module 7 due to the transmission relationship of the conveyor, and ensuring that the side wall of the packaging box is directly opposite the middle of the lateral image acquisition module 7 when it is locked by the positioning clamp 904.

[0028] During operation, the conveyor continuously transports food packaging boxes to one side. When a packaging box is about to enter the detection position, the flipping motor 1004 drives the shaft 1003 to rotate, causing the support head 1005 to come close to the packaging box. At the same time, the cylinder 902 drives the steering motor 903 and the positioning clamp 904 to move towards the side wall of the food packaging box. The parts of the positioning clamps 904 on the left and right sides that contact the side wall of the packaging box are asymmetrical. With continuous force, a lateral force is generated on the packaging box that can rotate the packaging box, and the packaging box naturally rotates and straightens.

[0029] Before the positioning clamp 904 clamps and locks the packaging box, the upright packaging box is conveyed by the conveyor and abuts against the support head 1005 and cannot be conveyed further. Then the positioning clamp 904 locks the packaging box, and the flip motor 1004 drives the shaft 1003 and the support head 1005 to flip upward and reset.

[0030] An external blower draws air into the air ring 5 through a flexible air hose and sends it out through the nozzle 6, blowing it onto the surface of the packaging box below to remove the adhering dust and paper scraps. The conveyor stops running, and the cylinder 902 drives the positioning clamp 904 to retract away from the surface of the packaging box. The side image acquisition module 7 captures images of the left and right side walls of the packaging box. Then, the rotary motor 4 drives the air ring 5 to rotate, causing the side image acquisition module 7 to move and re-inspect the side walls of the other two packaging boxes.

[0031] Then, cylinder 902 drives positioning clamp 904 to clamp the packaging box again. The moving stage 901 is driven by linear motor to lift along the frame 2, freeing up the bottom of the packaging box. Steering motor 903 drives positioning clamp 904 to rotate 180 degrees. Through the static friction between positioning clamp 904 and packaging box, the packaging box is rotated together, so that the bottom wall of the packaging box faces upward, making it convenient for the forward image acquisition module 8 to recognize and detect it.

[0032] Through the above steps, the positioning and placement components on the inspection machine 1 can provide three-sided alignment support for the food packaging boxes conveyed on the conveyor. As the edge of the packaging box contacts the positioning component, the packaging box is gradually aligned and finally clamped and locked due to the asymmetrical force. The placement component pushes the clamped packaging box to the position facing the image acquisition module, ensuring that the side wall of the packaging box can be fully recognized by the lateral image acquisition module 7. There is no need for manual assistance to straighten the packaging box, reducing labor input and solving the problem that food packaging boxes conveyed by the conveyor are prone to deviation and require manual assistance to straighten when they arrive at the inspection machine 1, making the inspection very troublesome.

[0033] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A non-destructive testing device for food outer packaging that can be positioned and clamped, comprising a testing machine (1), a frame (2), and a crossbeam (3); characterized in that: It also includes a rotary motor (4), an air ring (5), an air nozzle (6), a side image acquisition module (7), a front image acquisition module (8), a positioning component, and a positioning component; the inspection machine (1) has two and is respectively installed on the left and right sides of the conveyor. The upper end of the inspection machine (1) is fixedly installed with a frame (2). The upper ends of the frame (2) are fixedly connected with a crossbeam (3) parallel to the top of the conveyor. The upper end of the crossbeam (3) is equipped with a rotary motor (4). The lower part of the crossbeam (3) is provided with a hollow structure air ring (5) connected to an external blower. The air ring (5) is connected to the drive shaft of the rotary motor (4) through several radially distributed rods in the middle. The fixed connection is provided. 8-12 air nozzles (6) are installed around the inner circumference of the air ring (5) to deliver air downwards at a 45-degree angle. Two symmetrical side image acquisition modules (7) are installed at the lower end of the air ring (5) via a hanger. A front image acquisition module (8) is installed in the middle of the air ring (5). Both the side image acquisition module (7) and the front image acquisition module (8) are electrically connected to the detection machine (1) and respectively detect and identify the side wall and bottom wall of the food packaging box. A positioning component for clamping and locking the packaging box is provided on the frame (2). A positioning component for pushing the packaging box into the detection position is provided on the side of the crossbeam (3) facing the conveyor conveying direction.

2. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 1, characterized in that: An open hole is provided on the outer wall of the air ring (5). The open hole is connected to the air outlet channel of the external blower through a flexible hose. An LED light strip is embedded in the inner wall of the air ring (5). Both the blower and the LED light strip are powered by the mains power.

3. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 1, characterized in that: The sling between the lateral image acquisition module (7) and the air ring (5) is a sling (11) consisting of two interlocking rods, which are fixed together by bolts.

4. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 1, characterized in that: The positioning components include a moving stage (901) and a cylinder (902); a through slot is longitudinally opened in the middle of the frame (2), the moving stage (901) is set inside the through slot and is driven to lift by a linear motor module installed on the side wall of the through slot, and a cylinder (902) is installed on the side of the moving stage (901) facing away from the conveyor.

5. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 4, characterized in that: The positioning assembly also includes a steering motor (903) and a positioning clamp (904); the steering motor (903) is mounted on the piston rod end of the cylinder (902), and a cylindrical positioning clamp (904) with a surface covered with anti-slip silicone sleeve is fixedly mounted on the drive shaft of the steering motor (903).

6. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 5, characterized in that: The positioning assembly includes a cantilever frame (1001), a bearing seat (1002), and a shaft (1003). The cantilever frame (1001) is fixedly installed at the front end of the crossbeam (3). The front end of the cantilever frame (1001) is fixedly connected to the bearing seat (1002) which is on the same horizontal plane as the air ring (5). The upper end of the shaft (1003) is movably connected to the inside of the bearing seat (1002).

7. The non-destructive testing device for food outer packaging that can be positioned and clamped according to claim 6, characterized in that: The positioning assembly also includes a tilting motor (1004) and a support head (1005); the tilting motor (1004) is installed on one side of the bearing seat (1002), the upper end of the shaft (1003) is fixedly connected to the drive shaft of the tilting motor (1004), and the lower end of the shaft (1003) is fixedly connected to a cylindrical support head (1005), the surface of the support head (1005) is covered with an anti-slip silicone sleeve.

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