Metal detection device for packaging bags of refractory lining powder products

Abstract

This utility model is a metal detection device for packaging bags of finished refractory lining powder. It includes a conveying mechanism with a metal detector in the middle. The metal detector has a material channel through which the conveying mechanism passes. It also includes a PLC controller. A laser marking machine is located behind the metal detector in the conveying mechanism. The PLC controller is connected to the conveying mechanism, the metal detector, and the laser marking machine. This utility model automatically conveys packaging bags containing metal impurities a certain distance after detection, and marks the packaging bags with laser marking. The marked packaging bags are easy to identify, preventing good products from being mixed in and reaching customers.

Description

Technical Field

[0001] This utility model relates to the field of refractory material production technology, specifically a metal detection device for packaging bags of finished refractory lining powder. Background Technology

[0002] The working principle of an intermediate frequency furnace is to generate high temperature through electro-induction to melt the metal inside the furnace. Therefore, the refractory lining of an intermediate frequency furnace must not contain any metal components; otherwise, the melting metal during operation will create voids, which may lead to molten iron leakage in severe cases. Therefore, refractory material manufacturers must inspect all finished product packaging bags with a metal detector to ensure that the finished refractory material packaging reaching users does not contain metal impurities. Currently, metal detectors are commonly used. Patent document CN105829919B, entitled "Metal Detector Assembly and Method for Assembling Metal Detectors," discloses the structure and working principle of metal detectors. However, in practical applications, the following problems still exist: 1. If the detector alarms during line detection, it stops working and can only continue after manual handling. Improper handling of packaging containing metal impurities may lead to re-mixing with good products. 2. Some dust is unavoidable on the surface of the packaging bags. This dust may affect the metal detection results and also pollute the on-site working environment, requiring timely cleaning. Summary of the Invention

[0003] The purpose of this invention is to solve the problems existing in the prior art and to provide a metal detection device for packaging bags of finished refractory lining powder.

[0004] The specific solution of this utility model is: a metal detection device for packaging bags of finished refractory lining powder, including a conveying mechanism, a metal detector installed in the middle of the conveying mechanism, a material channel provided for the metal detector, the conveying mechanism passing through the material channel, and a PLC controller. A laser marking machine is provided behind the metal detector in the conveying mechanism. The PLC controller is connected to the conveying mechanism, the metal detector and the laser marking machine respectively.

[0005] Furthermore, the starting end of the conveying mechanism is equipped with a dust removal mechanism, which includes a vacuum cleaner with a dust collection pipe. The end of the dust collection pipe is aligned with the packaging bag passing through the conveying mechanism.

[0006] Furthermore, the dust collection pipe is provided with branch pipes, the ends of which are aligned with the lower half of the metal detector.

[0007] Furthermore, it also includes an alarm, which is connected to the PLC controller via signal transmission.

[0008] Furthermore, the conveying mechanism includes a frame with a row of idlers on it. A servo motor is mounted at one end of the frame, and a drive sprocket is mounted at the output end of the servo motor. A transmission chain is mounted at one end of each idler, and the transmission chain is connected to the drive sprocket.

[0009] This utility model has the following beneficial effects: 1. Packaging bags containing metal impurities detected by the line are automatically conveyed backward a certain distance, and marked by laser marking machine. The marked packaging bags are easy to identify, preventing good products from being mixed in and flowing to customers; 2. The packaging bags on the upper conveyor mechanism are first cleaned by a dust removal mechanism to avoid errors in subsequent metal detector detection, and also to avoid polluting the working environment; the dust removal mechanism also promptly handles any dust that may accumulate in the lower part of the metal detector. Attached Figure Description

[0010] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0011] Figure 2 This is the front view of this utility model;

[0012] Figure 3 yes Figure 2 Top view;

[0013] Figure 4 yes Figure 2 AA view;

[0014] Figure 5 This is a schematic diagram showing the connection of the various components of this utility model;

[0015] In the diagram: 1. Conveying mechanism; 2. Vacuum cleaner; 3. Dust collection pipe; 4. Metal detector; 5. Laser marking machine; 6. Branch pipe. Detailed Implementation

[0016] See Figure 1-5This embodiment describes a metal detection device for packaging bags of refractory lining powder. It includes a conveying mechanism 1, a metal detector 4 mounted in the middle of the conveying mechanism 1, a material channel through which the conveying mechanism passes, and a PLC controller. A laser marking machine 5 is located behind the metal detector 4 on the conveying mechanism 1. The PLC controller is connected to the conveying mechanism 1, the metal detector 4, and the laser marking machine 5. Furthermore, a dust removal mechanism is provided at the starting end of the conveying mechanism 1. This mechanism includes a vacuum cleaner 2 with a dust collection pipe 3, the end of which is aligned with the packaging bag passing over the conveying mechanism. Further, the dust collection pipe 3 has branch pipes 6, the ends of which are aligned with the lower half of the metal detector 4. Finally, an alarm is also included, connected to the PLC controller. Furthermore, the conveying mechanism 1 includes a frame with a row of idlers on it. A servo motor is mounted at one end of the frame, and a drive sprocket is mounted at the output end of the servo motor. A transmission chain is mounted at one end of each idler, and the transmission chain is connected to the drive sprocket. The working principle of this utility model is as follows: Workers place finished packaging bags containing refractory lining powder one by one onto the conveyor mechanism for passing through the line. The conveyor mechanism transports the packaging bags backward at a relatively slow speed. When passing the metal detector 4, it automatically detects whether there are metal impurities mixed in the packaging bag. If there are no metal impurities, the bag passes through normally and flows backward. If metal impurities are detected in a packaging bag, a signal is immediately sent to the PLC controller. After receiving the signal, the PLC controller simultaneously sends signals to the alarm, the servo motor of the conveyor mechanism, and the laser marking machine 5. The alarm sounds, and at the same time, the servo motor of the conveyor mechanism transports the packaging bag backward until it stops directly below the laser marking machine 5. Then, the laser marking machine 5 starts to mark the surface of the packaging bag. Then, the conveyor mechanism starts again to transport the packaging bag backward. The subsequent process will process the marked packaging bag off the line. During operation, the dust removal mechanism of this utility model is always kept on. The dust collection pipe 3 removes dust from the surface of the packaging bag that has just been put into the conveyor, while the branch pipe 6 removes dust that may be present in the lower half of the metal detector 4. On the one hand, this avoids the influence of dust on the outer surface of the packaging bag on the metal detection, and on the other hand, it keeps the working environment clean and avoids dust pollution.

Claims

1. A metal detection device for packaging bags of finished refractory lining powder, comprising a conveying mechanism, a metal detector mounted in the middle of the conveying mechanism, the metal detector having a material channel through which the conveying mechanism passes, characterized in that: Also includes The PLC controller is located behind the metal detector and has a laser marking machine. The PLC controller is connected to the conveying mechanism, the metal detector and the laser marking machine respectively.

2. The metal detection apparatus for refractory lining powder product packaging bags according to claim 1, characterized in that: The starting end of the conveying mechanism is equipped with a dust removal mechanism, which includes a vacuum cleaner with a dust collection pipe. The end of the dust collection pipe is aligned with the packaging bag passing through the conveying mechanism.

3. The metal detection apparatus for refractory lining powder product packaging bags according to claim 2, characterized in that: The dust collection pipe is equipped with branch pipes, and the end of the branch pipe is aligned with the lower half of the metal detector.

4. The metal detection apparatus for refractory lining powder product packaging bags according to claim 1, characterized in that: It also includes an alarm, which is connected to the PLC controller via signals.

5. The metal detection apparatus for refractory lining powder product packaging bags according to claim 1, characterized in that: The conveying mechanism includes a frame with a row of idlers on it. A servo motor is mounted at one end of the frame, and a drive sprocket is mounted at the output end of the servo motor. A transmission chain is mounted at one end of each idler, and the transmission chain is connected to the drive sprocket.

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