Automatic metering device for cut waste of color-coated steel coil

Abstract

The utility model relates to a cut waste automatic metering device of a color-coated steel coil, which comprises a guide plate arranged behind a shearing device, the guide plate is positioned in front of a coiling mechanism, a displacement sensor A is arranged on one side of the guide plate and is used for detecting the position of the guide plate, and a pair of pinch rollers is arranged in front of the shearing device. Wherein one pinch roll is provided with a counting sensor, the counting sensor is used for metering the number of rotation turns of the pinch roll, the displacement sensor A and the counting sensor are both connected to a PLC, and the PLC is connected to an upper computer and is in communication connection with the upper computer. According to the utility model, the sensor and the PLC are arranged and are connected to the upper computer, so that the weight of cut wastes is automatically metered, the metering accuracy is improved, and the labor intensity is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of color-coated thin steel plate production, in particular to an automatic metering device for cutting waste of color-coated steel coils. Background Art

[0002] Color-coated thin steel plate is a raw material used in the fields of construction and industry. Thin steel plate manufacturers paint the surface of the steel plate, and a coiling mechanism is set up at the exit section of the color-coating unit for winding. The last section of the winding becomes waste due to other defects such as welding seams. This section of waste must be cut off and the cut waste is stored in a centralized manner for subsequent recycling. However, before storage, the waste needs to be weighed and measured. Currently, it is mainly estimated by operators carrying and weighing, or visually observing the length of the strip, which deviates greatly from the actual value. The numerical statistics of the waste weight are inaccurate, which affects the abnormal loss rate of color coating, production rate, metal balance rate, cutting loss rate and cost accounting. Summary of the invention

[0003] The main purpose of the utility model is to solve the problems existing in the above-mentioned prior art and to provide an automatic metering device for cutting waste of color-coated steel coils.

[0004] The specific scheme of the utility model is: an automatic metering device for cutting waste of color-coated steel coils, including a guide plate arranged behind a shearing device, the guide plate is located in front of a winding mechanism, a displacement sensor A is provided on one side of the guide plate, the displacement sensor A is used to detect the position of the guide plate, a pair of pinch rollers are provided in front of the shearing device, one of the pinch rollers is equipped with a counting sensor, the counting sensor is used to measure the number of rotations of the pinch roller, the displacement sensor A and the counting sensor are both connected to a PLC controller, the PLC controller is connected to a host computer and is in communication connection with the host computer.

[0005] A support is provided below one side of the guide plate of the utility model, and a displacement sensor A is installed on the support. The displacement sensor A adopts a rotary proximity switch, and the rotary proximity switch is provided with a rotating shaft, which is rotatably connected with the support. A probe is installed on the rotating shaft, and the probe is arranged vertically with the rotating shaft, and one end of the probe extends to the bottom of the guide plate.

[0006] The upper limit position of the guide plate of the utility model is provided with a displacement sensor B, and the displacement sensor B is connected with a PLC controller signal.

[0007] The surface of the pinch roller of the utility model is provided with a layer of anti-skid rubber.

[0008] Compared with the prior art, the utility model has the following advantages: by setting sensors and PLC controllers and connecting them to a host computer, automatic measurement of the weight of the waste removed is achieved, measurement accuracy is improved, and labor intensity is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0010] Figure 2 It is the front view of the utility model;

[0011] Figure 3 yes Figure 2 Left view of

[0012] In the figure: 1. knife holder; 2. support; 3. rotary proximity switch; 4. guide plate; 5. cutter; 6. pinch roller; 7. winding mechanism. DETAILED DESCRIPTION

[0013] See also Figure 1-3 The present embodiment is an automatic metering device for cutting waste of color-coated steel coils, including a guide plate 4 arranged behind a shearing device, the guide plate 4 is located in front of a winding mechanism 7, a displacement sensor A is provided on one side of the guide plate 4, and the displacement sensor A is used to detect the position of the guide plate 4. A pair of pinch rollers 6 are provided in front of the shearing device, one of the pinch rollers 6 is equipped with a counting sensor, and the counting sensor is used to measure the number of rotations of the pinch roller 6. The displacement sensor A and the counting sensor are both connected to a PLC controller, and the PLC controller is connected to a host computer and is in communication connection with the host computer.

[0014] The shearing device described in this embodiment includes a knife seat 1 and a cutter 5. The cutter 5 is located above the knife seat 1. The cutter 5 is connected to an oil cylinder. The steel strip is conveyed forward by a pinch roller 6 and passes through the upper surface of the knife seat 1. A support 2 is provided below one side of the guide plate 4 described in this embodiment. A displacement sensor A is installed on the support 2. The displacement sensor A adopts a rotary proximity switch 3. The rotary proximity switch 3 is provided with a rotating shaft. The rotating shaft is rotatably connected to the support 2. A probe is installed on the rotating shaft. The probe is arranged vertically with the rotating shaft. One end of the probe extends to the bottom of the guide plate 4.

[0015] The upper limit position of the guide plate 4 in this embodiment is provided with a displacement sensor B, and the displacement sensor B is connected to the PLC controller signal. The surface of the pinch roller 6 in this embodiment is provided with a layer of anti-slip rubber.

[0016] The working principle of the utility model is as follows: when it is necessary to cut the head and tail of the belt, the main control system first controls the guide plate 4 to fall. When the guide plate 4 touches the displacement sensor A below, the shearing mechanism quickly cuts the first knife, and the displacement sensor A sends a signal to the PLC controller. The PLC controller controls the counting sensor to start counting. At the same time, the pinch roller 6 continues to feed forward, and the cutter 5 cuts a section of waste material again. If there is still waste material at the back, the cutter 5 cuts again to cut the waste material into several small sections for easy storage. When the cutter 5 cuts the last knife, the main control system controls the guide plate 4 to rise. At this time, the displacement sensor A cannot detect the guide plate 4, and sends a signal to the PLC controller again. The PLC controller controls the counting sensor to stop counting. During the counting time of the counting sensor, the total length of the waste material cut off is L=n×s, where n is the number of rotations of the pinch roller 6, s is the circumference of the pinch roller 6, and the total weight of the waste material cut off is W=L×A×ρ, where A is the width of the sheet material, and ρ is the density of the steel plate material.

[0017] The above calculation program is stored in the host computer, and the host computer automatically calculates the weight of the waste material cut from each coil and stores the data.

[0018] When the guide plate 4 rises to the upper limit position, it touches the displacement sensor B, and the displacement sensor B sends a signal to the PLC controller. The PLC controller communicates with the main control system, and the main control system controls the movement of the winding mechanism 7.

Claims

1. An automatic metering device for cutting waste of color-coated steel coils, characterized by: It includes a guide plate arranged at the rear of the shearing device, the guide plate is located in front of the winding mechanism, a displacement sensor A is arranged on one side of the guide plate, the displacement sensor A is used to detect the position of the guide plate, a pair of pinch rollers are arranged in front of the shearing device, one of the pinch rollers is equipped with a counting sensor, the counting sensor is used to measure the number of rotations of the pinch roller, the displacement sensor A and the counting sensor are both connected to the PLC controller, the PLC controller is connected to the host computer and is in communication connection with the host computer.

2. The automatic metering device for cutting waste of color-coated steel coil according to claim 1 is characterized in that: A support is provided below one side of the guide plate, and a displacement sensor A is installed on the support. The displacement sensor A adopts a rotary proximity switch. The rotary proximity switch is provided with a rotating shaft, which is rotatably connected to the support. A probe is installed on the rotating shaft. The probe is arranged vertically to the rotating shaft, and one end of the probe extends to the bottom of the guide plate.

3. The automatic metering device for cutting waste of color-coated steel coil according to claim 1 is characterized in that: The upper limit position of the guide plate is provided with a displacement sensor B, and the displacement sensor B is connected to the PLC controller signal.

4. The automatic metering device for cutting waste of color-coated steel coil according to claim 1 is characterized in that: A layer of anti-skid rubber is provided on the surface of the pinch roller.

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