Roller way safety protection control device

Abstract

The utility model discloses a roller way safety protection control device which is characterized in that a protection plate is arranged on one side of a roller way, a pull rope switch is fixed at one end of the outer side of the protection plate, and the movable end of the pull rope switch is connected to the other end of the outer side of the protection plate through a pull rope; and the pull rope switch is connected to the whole machine controller. According to the utility model, the pull-cord switch is used as a signal generating source when an on-site emergency occurs, a safety interlocking signal is timely transmitted to the PLC when the emergency occurs, and a corresponding equipment rotation or action mechanism immediately stops running in time after logical judgment processing, so that the personal safety of intruders is protected, and the occurrence of safety accidents is effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of bar processing technology, and in particular to a roller conveyor safety protection and control device. Background Technology

[0002] A centerless grinder is a device for grinding the outer surface of round bars. The entire grinding process is controlled by electrical automation, including automatic feeding, roller conveyor transport, grinding wheel operation, and automatic unloading. Taking a centerless grinder as an example, because the rollers are connected in series via universal joints, even though protective baffles made of perforated plates are used on the sides, such as... Figure 1 As shown, there are still significant blind spots in protection.

[0003] During production, the operator's sleeves can still get caught in the roller conveyor universal joint, and once caught, they cannot get free. The emergency stop button is 4 to 5 meters away from the incident location, making it impossible for the operator to shut down the equipment in an emergency. Summary of the Invention

[0004] Purpose of the utility model: In order to overcome the shortcomings of the prior art, this utility model requests protection for a roller conveyor safety protection control device.

[0005] Technical solution: The roller conveyor safety protection control device disclosed in this utility model has a protective plate installed on one side of the roller conveyor. A pull rope switch is fixed to one end of the outer side of the protective plate, and the movable end of the pull rope switch is connected to the other end of the outer side of the protective plate through a pull rope.

[0006] The pull-cord switch is connected to the main controller.

[0007] Furthermore, the pull rope is a plastic-coated steel wire rope.

[0008] Furthermore, a fixing plate is welded to the other end of the outer side of the protective plate, and the fixing plate is provided with a ring eye screw. The two ends of the pull rope are fixed to the movable end of the pull rope switch and the ring eye screw respectively through the buckle head.

[0009] Furthermore, the pull rope is equipped with a tension adjustment device.

[0010] Furthermore, the tensioning adjustment device is a turnbuckle.

[0011] Furthermore, the protective plate is provided with multiple loops at intervals corresponding to the position of the pull rope, and the pull rope passes through each loop in sequence to reduce the drooping phenomenon of the pull rope.

[0012] Furthermore, the pull-cord switch cable is connected to the main controller and display screen via a corrugated tube.

[0013] Beneficial effects: compared with the prior art, the utility model discloses the advantages that: adopt the pull rope switch to carry out the signal source when the on -the -spot emergency situation occurs, its protection level IP67 is completely suitable for the bad working environment of the import and export of coreless grinding machine, and the pull rope switch is not afraid of the splash of water produced by the grinding wheel, the covering of grinding wheel ash and slag and the vibration produced by the grinding work and other unfavorable factors, and its signal is stable and reliable, and the advantage of starting other type control components is very obvious, can save the reform cost, when the emergency situation occurs, the safety interlock signal is in time transmitted to PLC, and through the logic judgment processing, the corresponding equipment rotation or action mechanism is in time stopped running, the personal safety of the intruder is protected, and the occurrence of safety accidents is effectively avoided. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the end structure schematic diagram of coreless grinding machine in the prior art;

[0015] Figure 2 It is the whole end structure schematic diagram of the utility model;

[0016] Figure 3 It is the side view of the protective plate of the utility model. PREFERRED EMBODIMENT

[0017] As shown in Figure 2 And 3 The roller safety protection control device, the protective plate 1 is arranged on one side of the roller 2, the outer side of the protective plate 1 is fixed with the pull rope switch 3, the fixed mode of the pull rope switch 3 and the protective plate 1 is not limited, can be punched bolt connection, can also be directly fixed with a lock buckle.The movable end of the pull rope switch 3 is connected to the other end of the outer side of the protective plate 1 through the pull rope 4.

[0018] The pull rope 4 is a plastic coated steel wire rope, the other end of the outer side of the protective plate 1 is welded with the fixed plate 5, the fixed plate 5 is provided with the eye bolt 6, and the two ends of the pull rope are fixed with the movable end of the pull rope switch 3 and the eye bolt 6 through the buckle tie head 7 respectively, and two are used at the beginning and the end in the embodiment.

[0019] The pull rope 4 is provided with the tension adjusting device 8, and the basket screw is adopted in the embodiment to keep the steel wire rope appropriate tightness.

[0020] The protective plate 1 is spaced apart and welded with a plurality of ring pieces 9 corresponding to the position of the pull rope 4, the pull rope 4 sequentially passes through each ring piece 9, and the pull rope sag phenomenon is slowed down.

[0021] The pull rope switch 3 wire cable is connected to the whole machine controller and display screen through the corrugated pipe. The controller is programmed and debugged. When the emergency occurs in the field simulation, the corresponding equipment roller and the rotating action mechanism such as the material pushing grab are immediately interlocked to stop the operation action, so as to ensure the personal safety of the operator. At the same time, the on-site safety interlocking indicator light prompts the operator through different colors that the safety door is opened and the equipment stops running. When the safety door is closed again, the operator presses the on-site reset button after on-site confirmation, and the equipment resumes normal operation.

Claims

1. A roller conveyor safety protection control device, characterized in that: The protective plate (1) is located on one side of the roller conveyor (2). A pull rope switch (3) is fixed at one end of the outer side of the protective plate (1). The movable end of the pull rope switch (3) is connected to the other end of the outer side of the protective plate (1) through a pull rope (4). The pull rope switch (3) is connected to the whole machine controller.

2. The roller conveyor safety protection control device according to claim 1, characterized in that: The pull rope (4) is a plastic-coated steel wire rope.

3. The roller conveyor safety protection control device according to claim 2, characterized in that: A fixing plate (5) is welded to the other end of the outer side of the protective plate (1). The fixing plate (5) is provided with a ring eye screw (6). The two ends of the pull rope are fixed to the movable end of the pull rope switch (3) and the ring eye screw (6) respectively by the buckle head (7).

4. The roller conveyor safety protection control device according to claim 1, characterized in that: The pull rope (4) is equipped with a tension adjustment device (8).

5. The roller conveyor safety protection control device according to claim 4, characterized in that: The tension adjustment device (8) is a turnbuckle.

6. The roller conveyor safety protection control device according to claim 1, characterized in that: The protective plate (1) is provided with multiple rings (9) at intervals corresponding to the position of the pull rope (4). The pull rope (4) passes through each ring (9) in sequence to reduce the drooping phenomenon of the pull rope.

7. The roller conveyor safety protection control device according to claim 1, characterized in that: The cable of the pull cord switch (3) is connected to the whole machine controller and display screen through a corrugated pipe.

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