An automatic box height detection device for an automatic box sealing machine

Abstract

This utility model provides an automatic box height detection device for an automatic box sealing machine, including a stopping mechanism installed on the conveyor belt of the automatic box sealing machine and an automatic height detection mechanism installed on the clamping and conveying mechanism of the conveyor belt. The automatic height detection mechanism includes a photoelectric detection unit and an auxiliary detection unit.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box packaging equipment technology, and in particular to an automatic box height detection device for an automatic box sealing machine. Background Technology

[0002] As an industrial product packaging device, the fully automatic carton sealing machine is an indispensable piece of equipment for improving efficiency, saving manpower, and realizing industrial automation and assembly line operations. When sealing cartons of different heights, a carton height detection device needs to be installed in front of the sealing machine on the sealing line to transmit the measured carton height data back to the control mechanism of the sealing machine. The control mechanism then adjusts the height of the sealing machine to accommodate the sealing of cartons of different heights. Most existing carton height detection devices use photoelectric sensors in conjunction with distance sensors for detection. However, when the carton is not full of goods or the four side flaps of the carton are not pre-pressed, it will affect the sensor's monitoring, causing deviations in the height data transmitted to the sealing machine's control mechanism, which in turn leads to incomplete sealing or failure. Therefore, a stable and reliable height detection device is urgently needed to solve this problem. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides an automatic box height detection device for an automatic box sealing machine. The device includes a stopping mechanism mounted on the conveyor belt of the automatic box sealing machine and an automatic height detection mechanism mounted on the clamping and conveying mechanism of the conveyor belt. The automatic height detection mechanism includes a photoelectric detection unit and an auxiliary detection unit. The photoelectric detection unit includes a mounting vertical rod, a mounting horizontal rod, a photoelectric switch assembly, and a distance sensor. The mounting vertical rod is fixedly mounted at the edge of the conveyor belt, and the mounting horizontal rod is fixedly connected to the top of the mounting vertical rod. The photoelectric switch assembly is mounted on the mounting vertical rod, and the distance sensor is mounted on the mounting horizontal rod. Both the photoelectric switch assembly and the distance sensor are controlled by a PLC. The controller is connected to the automatic carton sealing machine. The auxiliary detection unit includes an electric telescopic push rod, a mounting cylinder, a pressure measuring rod, a connecting plate, a compression spring, a pressure sensor, and a distance sensor. The electric telescopic push rod is mounted on the clamping conveying mechanism. One end of the mounting cylinder is fixedly connected to the electric telescopic push rod. The pressure sensor is located at the bottom of the mounting cylinder. The pressure measuring rod is located inside the mounting cylinder and slides with the mounting cylinder. The pressure measuring rod is connected to the connecting plate through the compression spring. The connecting plate contacts the pressure sensor. The distance sensor is located on the outer surface of the mounting cylinder and aligned with the surface of the clamping conveying mechanism. Both the pressure sensor and the distance sensor are connected to the automatic carton sealing machine through a PLC controller.

[0004] Using the above technical solution, the automatic carton sealing machine's conveyor belt and clamping conveyor mechanism are equipped with a photoelectric detection unit, including a mounting vertical rod, a mounting horizontal rod, a photoelectric switch assembly, and a distance sensor, as well as an auxiliary detection unit, including an electric telescopic push rod, a mounting cylinder, a pressure measuring rod, a connecting pressure plate, a pressure spring, a pressure sensor, and a distance sensor. When cartons of different heights reach below the automatic height detection mechanism, the Lanting mechanism is activated to stop the cartons. Then, the photoelectric detection unit and the auxiliary detection unit are activated simultaneously. The photoelectric switch assembly and distance sensor measure the height of the cartons. Simultaneously, the electric telescopic push rod moves upward, causing the pressure measuring rod, under the action of the pressure spring, to press one end against the indicated side wall. This continues until the pressure measuring rod reaches the connection point between the side cover and the carton body. Since the side cover can rotate, under the action of the pressure measuring rod, the side cover will slightly close inward. At this time, due to continuous contact with the side cover, the pressure measuring rod will extend in the direction of the side cover closing, causing the pressure spring to stretch. This, in turn, causes the pressure between the pressure plate and the pressure sensor at the other end of the pressure spring to decrease. The position data of the distance sensor and the clamping conveyor mechanism when the pressure changes are recorded. After processing, the height data of the box is obtained. If the data measured by the auxiliary detection unit and the photoelectric detection unit are consistent, it is the actual height of the box. The height data can then be transmitted to the automatic box sealing machine through the PLC controller, so that the automatic box sealing machine can make corresponding height adjustments to adapt to the height of the box. This can avoid the detection data deviation that may occur with a single photoelectric detection unit, thereby avoiding the situation of box sealing failure.

[0005] A further feature of this invention is that a roller is provided at one end of the pressure measuring rod.

[0006] By adopting the above technical solution, since one end of the pressure measuring rod is equipped with a roller, the pressure measuring rod can be easily moved on the surface of the box, avoiding damage to the box during movement.

[0007] A further feature of this invention is that the auxiliary detection unit also includes a roller guide plate, which is fixedly mounted on the clamping and conveying mechanism and aligned with the position of the pressure measuring rod.

[0008] By adopting the above technical solution, since the auxiliary detection unit also includes a roller guide plate, the roller guide plate is fixedly installed on the clamping and conveying mechanism and aligned with the position of the pressure measuring rod. The roller guide plate guides and restricts the extension of the pressure measuring rod, so as to avoid the situation where the rod extends before it is started and blocks the carton from moving forward on the conveyor belt.

[0009] A further feature of this invention is that the stopping mechanism includes a proximity sensor, a drive cylinder, and a baffle. The proximity sensor is mounted on the clamping and conveying mechanism. The baffle is fixedly connected to the piston rod end of the drive cylinder. The drive cylinder is mounted on the conveyor belt and is connected to the proximity sensor via a PLC controller.

[0010] Using the above technical solution, since the blocking mechanism includes a proximity sensor, a drive cylinder and a baffle, the proximity sensor is set on the clamping and conveying mechanism, the baffle is fixedly connected to the piston rod end of the drive cylinder, the drive cylinder is set on the conveyor belt, and the drive cylinder is connected to the proximity sensor through a PLC controller. When the carton moves to the position of the proximity sensor, the drive cylinder starts to control the baffle to extend, which can block the carton from moving forward. Attached Figure Description

[0011] Appendix Figure 1 This is a schematic diagram of the structure of an automatic box height detection device for an automatic box sealing machine according to a specific embodiment of the present utility model.

[0012] Appendix Figure 2 This is an exploded structural diagram of the auxiliary detection unit in an automatic box height detection device for an automatic box sealing machine, according to a specific embodiment of this utility model.

[0013] Appendix Figure 3 This is a partial structural schematic diagram of an automatic box height detection device for an automatic box sealing machine according to a specific embodiment of the present utility model.

[0014] 1-Conveyor belt, 2-Stop mechanism, 3-Clamping and conveying mechanism, 4-Automatic height detection mechanism, 5-Photoelectric detection unit, 6-Auxiliary detection unit, 7-Mounting vertical rod, 8-Mounting horizontal rod, 9-Photoelectric switch group, 10-Distance sensor, 11-Electric telescopic push rod, 12-Mounting cylinder, 13-Pressure measuring rod, 14-Connecting pressure plate, 15-Compression spring, 16-Pressure sensor, 17-Roller, 18-Roller guide plate, 19-Proximity sensor, 20-Drive cylinder, 21-Baffle. Detailed Implementation

[0015] like Figure 1-3As shown, an automatic box height detection device for an automatic box sealing machine includes a stopping mechanism 2 mounted on the conveyor belt 1 of the automatic box sealing machine and an automatic height detection mechanism 4 mounted on the clamping and conveying mechanism 3 of the conveyor belt. The automatic height detection mechanism includes a photoelectric detection unit 5 and an auxiliary detection unit 6. The photoelectric detection unit includes a mounting vertical rod 7, a mounting horizontal rod 8, a photoelectric switch group 9, and a distance sensor 10. The mounting vertical rod is fixedly mounted at the edge of the conveyor belt, and the mounting horizontal rod is fixedly connected to the top of the mounting vertical rod. The photoelectric switch group is mounted on the mounting vertical rod, and the distance sensor is mounted on the mounting horizontal rod. Both the photoelectric switch group and the distance sensor are connected to the automatic box sealing machine via a PLC controller. Next, the auxiliary detection unit includes an electric telescopic push rod 11, a mounting cylinder 12, a pressure measuring rod 13, a connecting plate 14, a compression spring 15, a pressure sensor 16, and a distance sensor. The electric telescopic push rod is mounted on the clamping conveying mechanism. One end of the mounting cylinder is fixedly connected to the electric telescopic push rod. The pressure sensor is located at the bottom of the mounting cylinder. The pressure measuring rod is located inside the mounting cylinder and slides with the mounting cylinder. The pressure measuring rod is connected to the connecting plate through the compression spring. The connecting plate contacts the pressure sensor. The distance sensor is located on the outer surface of the mounting cylinder and aligned with the surface of the clamping conveying mechanism. Both the pressure sensor and the distance sensor are connected to the automatic box sealing machine through a PLC controller.

[0016] The automatic carton sealing machine's conveyor belt and clamping conveyor mechanism are equipped with a photoelectric detection unit, including a mounting vertical rod, a mounting horizontal rod, a photoelectric switch assembly, and a distance sensor, as well as an auxiliary detection unit, including an electric telescopic push rod, a mounting cylinder, a pressure measuring rod, a connecting pressure plate, a compression spring, a pressure sensor, and a distance sensor. When cartons of different heights reach below the automatic height detection mechanism, the Lanting mechanism is activated to stop the cartons. Then, the photoelectric detection unit and the auxiliary detection unit are activated simultaneously. The photoelectric switch assembly and distance sensor measure the height of the cartons. Simultaneously, the electric telescopic push rod moves upwards, causing the pressure measuring rod, under the action of the compression spring, to press one end against the indicated side wall. This continues until the pressure measuring rod reaches the connection point between the side cover and the carton body. Since the side cover can... When rotated, the side cover will slightly close inward under the action of the pressure measuring rod. At this time, the pressure measuring rod will extend in the direction of the side cover closing due to continuous contact with the side cover, causing the pressure spring to stretch. This will reduce the pressure between the pressure plate and the pressure sensor at the other end of the pressure spring. The position data of the distance sensor and the clamping conveyor mechanism when the pressure changes are recorded. After processing, the height data of the box is obtained. If the data measured by the auxiliary detection unit and the photoelectric detection unit are consistent, it is the actual height of the box. The height data can be transmitted to the automatic box sealing machine through the PLC controller, so that the automatic box sealing machine can make corresponding height adjustments to adapt to the height of the box. This can avoid the detection data deviation that may occur from a single photoelectric detection unit, and thus avoid the situation of box sealing failure.

[0017] One end of the pressure measuring rod is equipped with a roller 17.

[0018] Because one end of the pressure measuring rod is equipped with a roller, it is easy to move the pressure measuring rod on the surface of the box, avoiding damage to the box during movement.

[0019] The auxiliary detection unit also includes a roller guide plate 18, which is fixedly mounted on the clamping and conveying mechanism and aligned with the position of the pressure measuring rod.

[0020] Since the auxiliary detection unit also includes a roller guide plate, which is fixedly installed on the clamping and conveying mechanism and aligned with the position of the pressure measuring rod, the roller guide plate guides and restricts the extension of the pressure measuring rod, preventing it from extending before startup and blocking the carton from moving forward on the conveyor belt.

[0021] The stopping mechanism includes a proximity sensor 19, a drive cylinder 20, and a baffle 21. The proximity sensor is mounted on the clamping and conveying mechanism. The baffle is fixedly connected to the piston rod end of the drive cylinder. The drive cylinder is mounted on the conveyor belt and is connected to the proximity sensor via a PLC controller.

[0022] The blocking mechanism includes a proximity sensor, a drive cylinder, and a baffle. The proximity sensor is mounted on the clamping and conveying mechanism. The baffle is fixedly connected to the piston rod end of the drive cylinder. The drive cylinder is mounted on the conveyor belt. The drive cylinder is connected to the proximity sensor via a PLC controller. When the carton moves to the position of the proximity sensor, the drive cylinder activates to extend the baffle, which can block the carton from moving forward.

Claims

1. An automatic box height detection device for an automatic box sealing machine, comprising a stopping mechanism disposed on the conveyor belt of the automatic box sealing machine and an automatic height detection mechanism disposed on the clamping and conveying mechanism of the conveyor belt, characterized in that: The automatic height detection mechanism includes a photoelectric detection unit and an auxiliary detection unit. The photoelectric detection unit includes a mounting vertical rod, a mounting horizontal rod, a photoelectric switch assembly, and a distance sensor. The mounting vertical rod is fixedly positioned at the edge of the conveyor belt, and the mounting horizontal rod is fixedly connected to the top of the mounting vertical rod. The photoelectric switch assembly is mounted on the mounting vertical rod, and the distance sensor is mounted on the mounting horizontal rod. Both the photoelectric switch assembly and the distance sensor are connected to the automatic box sealing machine via a PLC controller. The auxiliary detection unit includes an electric telescopic push rod, a mounting cylinder, a pressure measuring rod, and a connecting pressure plate. The system includes a compression spring, a pressure sensor, and a distance sensor. The electric telescopic push rod is mounted on the clamping conveying mechanism. One end of the mounting cylinder is fixedly connected to the electric telescopic push rod. The pressure sensor is located at the bottom of the mounting cylinder. The pressure measuring rod is located inside the mounting cylinder and slides within it. The pressure measuring rod is connected to a connecting pressure plate via a compression spring. The connecting pressure plate contacts the pressure sensor. The distance sensor is located on the outer surface of the mounting cylinder and aligned with the surface of the clamping conveying mechanism. Both the pressure sensor and the distance sensor are connected to the automatic box sealing machine via a PLC controller.

2. The box height automatic detection device for an automatic carton sealing machine according to claim 1, characterized in that: One end of the pressure measuring rod is equipped with a roller.

3. The box height automatic detection device for an automatic carton sealing machine according to claim 2, characterized in that: The auxiliary detection unit also includes a roller guide plate, which is fixedly mounted on the clamping and conveying mechanism and aligned with the position of the pressure measuring rod.

4. The box height automatic detection device for automatic carton sealing machine according to claim 1, characterized in that: The stopping mechanism includes a proximity sensor, a drive cylinder, and a baffle. The proximity sensor is mounted on the clamping and conveying mechanism. The baffle is fixedly connected to the piston rod end of the drive cylinder. The drive cylinder is mounted on the conveyor belt and is connected to the proximity sensor via a PLC controller.

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