Cooling bed marshalling chain counting control device

Abstract

The utility model discloses a cooling bed marshalling chain counting control device which comprises a deflector rod device (1) arranged at the inlet end of a marshalling chain, the deflector rod device (1) comprises a rocker (11), a mechanical pendulum bob (12) and a proximity switch (13) which are matched with one another, the rocker (11) is hinged to a mounting plate (2), the upper end of the rocker (11) is located on a steel bar movement route, and the lower end of the rocker (11) is connected with the mechanical pendulum bob (12). The mechanical pendulum bob (12) is arranged on one side of the proximity switch (13), the proximity switch (13) is connected with an external PLC through the signal transmission line (3), and then the PLC is connected with a marshalling chain through a communication network. The device has the advantages that the number of towed steel can be accurately controlled, the counting efficiency and the automation level are improved, and potential production safety hazards are reduced.

Description

Technical Field

[0001] This utility model belongs to the field of metallurgical automation counting and control technology, and in particular relates to a counting and control device for cooling bed grouping chains. Background Technology

[0002] On the continuous rolling mill production line, the cooling bed equipment uses AC motors and is driven by drawers of an industrial frequency electronic cabinet, lacking a grouping chain device, resulting in insufficient cooling capacity in the cooling bed area. To improve the cooling capacity of special steel in the cooling bed area, the cooling bed was upgraded with frequency conversion, and a grouping chain was added. The grouping chain uses frequency conversion control, allowing the steel bars on the cooling bed to be grouped and moved to the output roller conveyor by flat-carrying trolleys. However, currently there is no matching counting device capable of accurately controlling the number of steel bars being moved, making it impossible to statistically count and accumulate the number of steel bars on site. The forward command of the grouping chain is basically controlled by operators. Since the carrying capacity of each flat-carrying trolley is limited, if the actual amount of steel bars transported exceeds its carrying capacity, it will create a safety hazard. At the same time, this method of relying entirely on workers for counting and grouping control is inefficient and limits the level of automation. Utility Model Content

[0003] The purpose of this invention is to solve the problems of low counting efficiency and low automation level of existing cold bed grouping chains, and to provide a cold bed grouping chain counting control device that can accurately control the number of steel being pulled, improve counting efficiency and automation level, and reduce production safety hazards.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A counting and control device for a cold bed sprue chain includes a lever device located at the entrance end of the sprue chain. The lever device includes a rocker arm, a mechanical pendulum, and a proximity switch that cooperate with each other. The rocker arm is hinged to a mounting plate, with its upper end positioned on the movement path of the reinforcing bars and its lower end connected to the mechanical pendulum. The mechanical pendulum is located on one side of the proximity switch. The proximity switch is connected to an external PLC via a signal transmission line. The PLC is then connected to the sprue chain via a communication network, so that the PLC can reasonably control the forward movement of the sprue chain based on the collected signals.

[0006] Furthermore, the rocker arm includes a first link and a second link that are smoothly connected. The angle between the first link and the second link is an obtuse angle, and the connection between the two links is connected to a horizontal pivot. The pivot is connected to a hinge seat, and the hinge seat is fixed to the mounting plate.

[0007] Furthermore, the upper end of the first connecting rod is provided with an arc-shaped bend section, which is located on the movement path of the reinforcing bar so that the reinforcing bar can press against the rocker arm when it passes through.

[0008] Furthermore, the mechanical pendulum includes a flat section and a raised section that are smoothly connected. The angle between the flat section and the raised section is an obtuse angle. The connection between the two is located at the lower end of the second connecting rod. The raised section cooperates with the proximity switch so that when the pendulum approaches the proximity switch, the proximity switch receives a power feedback signal to the PLC.

[0009] Furthermore, before the reinforcing bar passes the rocker arm, the front end of the arc-shaped bend of the rocker arm bends downward and the rear end is smoothly connected to the first connecting rod. When the reinforcing bar passes the rocker arm, it first passes the rear end of the arc-shaped bend, so as to smoothly press down the rocker arm while protecting the contact surface of the reinforcing bar from being bumped.

[0010] In the technical solution of this utility model, by connecting the lever device to a photoelectric device and cooperating with a PLC, when the rebar passes the lever, the lever is tilted, and the mechanical pendulum below the lever approaches the proximity switch. The proximity switch is energized and feeds back an electrical signal to the PLC. After the counting program receives the counting signal from the field, it accumulates the count. When the set value parameter is reached, a control command is issued to make the grouping chain move forward in large steps, which facilitates the flat support trolley to move the grouped rebars to the output roller conveyor. The whole process is automatically controlled, which improves work efficiency. At the same time, the mechanical signal is converted into an electrical signal and connected to the PLC system through a cable, which ensures high reliability. Attached Figure Description

[0011] Figure 1 This is a front view of the cooling bed grouping chain counting control device of this utility model;

[0012] Figure 2 This is a side view of the cooling bed grouping chain counting control device of this utility model. Detailed Implementation

[0013] Example

[0014] To make this utility model clearer, the following description, in conjunction with the accompanying drawings, further illustrates a cooling bed grouping chain counting control device of this utility model. The specific embodiments described herein are for illustrative purposes only and are not intended to limit this utility model.

[0015] See Figure 1 and Figure 2 A counting and control device for a cooling bed grouped chain, comprising a lever device 1 located at the entry end of the grouped chain, characterized in that:

[0016] The lever device 1 includes a rocker arm 11, a mechanical pendulum 12 and a proximity switch 13 that cooperate with each other. The rocker arm 11 is hinged to the mounting plate 2, with its upper end on the movement path of the steel bar and its lower end connected to the mechanical pendulum 12.

[0017] The rocker arm 11 includes a first link 111 and a second link 112 that are smoothly connected. The angle between the first link 111 and the second link 112 is an obtuse angle, and the connection between the two is connected to a horizontal rotating shaft 4. The rotating shaft 4 is connected to a hinge seat 5, and the hinge seat 5 is fixed to the mounting plate 2.

[0018] The mechanical pendulum 12 is located on one side of the proximity switch 13. It includes a straight section 121 and a raised section 122 that are smoothly connected. The angle between the straight section 121 and the raised section 122 is an obtuse angle. The connection between the two is located at the lower end of the second link 112, and the raised section 122 cooperates with the proximity switch 13.

[0019] The proximity switch 13 is connected to an external PLC via a signal transmission line 3. The PLC is then connected to the train chain via a communication network so that the PLC can control the train chain to move forward in a reasonable manner based on the acquired signals.

[0020] In this embodiment, the upper end of the first connecting rod 111 is provided with an arc-shaped bending section 111a. The arc-shaped bending section 111a is located on the movement path of the reinforcing bar. When the reinforcing bar has not passed the rocker arm 11, the front end of the arc-shaped bending section 111a of the rocker arm 11 bends downward and the rear end is smoothly connected to the first connecting rod 111. When the reinforcing bar passes the rocker arm 11, it first passes the rear end of the arc-shaped bending section 111a. This can protect the contact surface of the reinforcing bar from being bumped while smoothly pressing down the rocker arm.

[0021] This utility model employs a lever device 1, which is positioned at the entrance end of the grouping chain. The lever device 1 is electrically connected to a photoelectric device and a PLC. When the reinforcing bar passes the rocker arm 11, the rocker arm 11 is tilted down, and the mechanical pendulum 12 below the rocker arm 11 approaches the proximity switch 13. The proximity switch 13 is energized and sends a feedback signal to the PLC. After the counting program receives the counting signal from the field, it performs cumulative counting. When the set value parameter is reached, a control command is issued to make the grouping chain move forward in large strides, which facilitates the flat support trolley to move the grouped reinforcing bars to the output roller conveyor.

[0022] The device of this invention realizes automatic control of the cooling bed area equipment, solves the problem of coordination with the grouping chain system, effectively improves the intelligence level of the cooling bed equipment, and effectively realizes the counting control of the grouping chain.

[0023] After adopting the counting control device of this utility model, 2 hours of downtime can be saved per month. Based on an average machine hour output of 130 tons and an average profit of 300 yuan per ton of steel, the annual economic benefit is: 2 hours × 130 × 300 × 12 months = 936,000 yuan.

[0024] In addition to the embodiments described above, this utility model may have other implementations. All technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A cold bed marshalling chain counting control device, characterized in that: it comprises a lever device (1) arranged at the entrance end of the marshalling chain, the lever device (1) comprising a rocker (11), a mechanical pendulum (12) and a proximity switch (13) cooperating with each other, the rocker (11) being hinged to a mounting plate (2), the upper end thereof being located on the reinforcing bar movement route, the lower end thereof being connected with the mechanical pendulum (12), the mechanical pendulum (12) being arranged on one side of the proximity switch (13), the proximity switch (13) being connected with an external PLC through a signal transmission line (3), the PLC being connected with the marshalling chain through a communication network.

2. The cold bed marshalling chain counting control device according to claim 1, characterized in that: the rocker (11) comprises a first connecting rod (111) and a second connecting rod (112) connected smoothly, the included angle between the first connecting rod (111) and the second connecting rod (112) is obtuse, and the connecting position thereof is connected with a horizontal rotating shaft (4), the rotating shaft (4) being connected with a hinged seat (5), the hinged seat (5) being fixed on the mounting plate (2).

3. The cold bed marshalling chain counting control device according to claim 2, characterized in that: the upper end of the first connecting rod (111) is provided with an arc-shaped bending section (111a), the arc-shaped bending section (111a) being arranged on the reinforcing bar movement route.

4. The cold bed marshalling chain counting control device according to claim 2 or 3, characterized in that: the mechanical pendulum (12) comprises a flat section (121) and a raised section (122) connected smoothly, the included angle between the flat section (121) and the raised section (122) is obtuse, the connecting position thereof being arranged at the lower end of the second connecting rod (112), and the raised section (122) cooperating with the proximity switch (13).

5. The cold bed marshalling chain counting control device according to claim 4, characterized in that: when the reinforcing bar does not pass through the rocker (11), the front end of the arc-shaped bending section (111a) is bent downward, and the rear end thereof is connected with the first connecting rod (111) smoothly, when the reinforcing bar passes through the rocker (11), the reinforcing bar passes through the rear end of the arc-shaped bending section (111a) first. ​ ​ ​ ​ ​

Images