Automatic safety protection device for pitch equipment debugging rack

Abstract

The utility model relates to a kind of automatic safety protection devices of pitching equipment debugging rack, belong to equipment manufacturing technical field.The device includes the operation area (8) surrounded by the first to third protective surface and the working area (9) surrounded by the fourth to sixth protective surface.Each protective surface both sides are equipped with reflective photoelectric switch and mirror surface.The photoelectric switch is electrically connected with control unit, and control unit is connected with audible light alarm (7) and the control circuit of pitching mechanism equipment.The utility model realizes the automatic safety protection to debugging area by photoelectric detection technology: when personnel misenters operation area, triggers audible light alarm;When personnel intrudes dangerous working area, not only can trigger alarm, but also can immediately cut off equipment power supply, forcibly stop equipment operation, effectively prevent the injury accident that high-speed motion pitching mechanism can cause, greatly improve the security and automation level of debugging process.

Description

Technical Field

[0001] This utility model belongs to the field of equipment manufacturing, and specifically relates to an automatic safety protection device for a pitch equipment debugging bench. Background Technology

[0002] When high-speed pitch mechanism equipment undergoes bench testing, the pitch speed of the equipment mechanism is relatively high. Obstacles are not allowed within the pitch rotation working area of ​​the mechanism. If someone accidentally enters the working area during equipment debugging, or if non-operators illegally operate the equipment, there is a risk of injury due to the rotation of the equipment pitch mechanism. Certain safety protection measures are required to ensure the safety of debugging during equipment manufacturing. During the debugging of pitch mechanism equipment, safety control is generally achieved by setting up safety warning lines or personnel monitoring and early warning. However, ordinary safety control methods rely heavily on human factors and cannot effectively prevent the occurrence of dangerous factors. Therefore, it is necessary to innovate and apply a utility model of a safety protection device for pitch equipment debugging bench to solve this problem. Utility Model Content

[0003] This utility model addresses the lack of effective safety measures during the bench debugging of high-speed motion pitch equipment by providing an automatic safety protection device for the pitch equipment debugging bench. This device provides safety protection for the operating work area, preventing contact injury to personnel or objects during the operation of the pitch equipment, and solving the process safety problem during product debugging.

[0004] To solve the above technical problems, this utility model provides an automatic safety protection device for a pitch equipment debugging platform, characterized in that it includes: an operation area (8) and a working area (9), wherein the operation area (8) is surrounded by a first protective surface (11), a second protective surface (12) and a third protective surface (13), and the working area (9) is surrounded by a fourth protective surface (14), a fifth protective surface (15) and a sixth protective surface (16); each protective surface is equipped with a reflective photoelectric switch and a reflective mirror on both sides, and the light beam emitted from the emitter of the reflective photoelectric switch is reflected by the reflective mirror on the opposite side to form a light beam; the reflective photoelectric switch is electrically connected to a control unit, and the control unit is connected to an audible and visual alarm (7) and the control circuit of the pitch equipment.

[0005] Furthermore, the reflective photoelectric switch of the operation area (8) includes a first photoelectric switch (F1), a second photoelectric switch (F2) and a third photoelectric switch (F3), which are respectively disposed on one side of the first protective surface (11), the second protective surface (12) and the third protective surface (13).

[0006] Furthermore, the reflective photoelectric switch of the working area (9) includes a fourth photoelectric switch (F4), a fifth photoelectric switch (F5) and a sixth photoelectric switch (F6), which are respectively disposed on one side of the fourth protective surface (14), the fifth protective surface (15) and the sixth protective surface (16).

[0007] Furthermore, the control unit is configured to: trigger the audible and visual alarm (7) when the beam of any reflective photoelectric switch in the operation area (8) is interrupted, and keep the power supply of the pitch equipment on; trigger the audible and visual alarm (7) when the beam of any reflective photoelectric switch in the working area (9) is interrupted, and cut off the power supply of the pitch equipment.

[0008] Furthermore, the control unit also includes a reset switch SB2, which is configured to be manually operated to stop the alarm and restore the power supply to the pitch equipment after the trigger state of the working area (9) is released.

[0009] Furthermore, the control unit includes a first relay (K1) and a second relay (K2); the coil of the first relay (K1) is linked with the reflective photoelectric switch of the working area (9) to control the on / off state of the power supply of the pitch equipment; the coil of the second relay (K2) is linked with the reflective photoelectric switches of the operating area (8) and the working area (9) to control the on / off state of the audible and visual alarm (7).

[0010] Furthermore, the first relay (K1) includes a normally closed contact, which is connected in series in the control circuit of the pitch equipment; the second relay (K2) includes a normally open contact, which is connected in series in the circuit of the audible and visual alarm (7).

[0011] Furthermore, it also includes multiple status indicator lights, each of which is electrically connected to a reflective photoelectric switch to indicate the on / off status of the beam on the corresponding protective surface.

[0012] Furthermore, the reflective photoelectric switch is a diffuse reflection type photoelectric sensor.

[0013] The device is installed on the pitch equipment test bench, and the operating area (8) and the working area (9) together constitute a safety protection area for the test bench.

[0014] Beneficial effects: This utility model can effectively reduce safety production accidents, improve the safety of product debugging by up to 99%, and save manpower and material costs of conventional safety protection. Attached Figure Description

[0015] Figure 1 This is a structural diagram;

[0016] Figure 2 This is an electrical schematic diagram. Detailed Implementation

[0017] To make the purpose, content and advantages of this utility model clearer, the specific embodiments of this utility model will be described in further detail below.

[0018] In order to ensure effective safety protection during the debugging of pitch mechanism equipment, and with the aim of reducing costs and increasing efficiency, this utility model proposes an automatic safety protection device for the pitch equipment debugging bench in the operating area and working area of ​​the mechanism.

[0019] The pitch mechanism equipment test bench has two protective areas: a working area (9) and an operating area (8).

[0020] See Figure 1 , Figure 2 A reflective photoelectric switch F1 (I) and a reflective mirror are installed at both ends of the first protective surface (11) of the equipment test bench (17), a reflective photoelectric switch F2 (II) and a reflective mirror are installed at both ends of the second protective surface (12), and a reflective photoelectric switch F3 (III) and a reflective mirror are installed at both ends of the third protective surface (13), forming a general protective area (8).

[0021] Reflective photoelectric switches F4 (IV) and reflective mirrors are installed at both ends of the fourth protective surface (14) of the equipment test bench (17), reflective photoelectric switches F5 (V) and reflective mirrors are installed at both ends of the fifth protective surface (15), and reflective photoelectric switches F6 (VI) and reflective mirrors are installed at both ends of the sixth protective surface (16), forming a prohibited area (9).

[0022] Working principle:

[0023] Operating area protection: Diffuse reflection photoelectric switch sensors are installed on three sides of the operating protection area of ​​the platform and are related to the equipment power supply circuit and control circuit. When personnel enter the warning area, an audible and visual alarm is immediately activated, but the power supply is not cut off. The equipment can continue to work normally, which can serve as a warning and notification function.

[0024] Work area protection: Diffuse reflection photoelectric switch sensors are installed on three sides of the mechanism's motion protection zone, and are linked to the equipment's power supply and control circuit. When personnel enter the warning area, an audible and visual alarm is immediately activated, the power supply is cut off, and the equipment stops working. When the equipment resumes operation, it must be restarted. This not only serves as a warning but also cuts off the equipment's power supply circuit, preventing the escalation of danger.

[0025] Specifically:

[0026] Safety protection design of the operating area: The operating area is surrounded by a first protective surface (11), a second protective surface (12), and a third protective surface (13). Each protective surface is equipped with a reflective photoelectric switch and a reflective mirror on both sides. The light beam emitted from the transmitter of the reflective photoelectric switch is reflected by the reflective mirror on the opposite side and returns to the receiver. When a person collides with the first protective surface (11), the second protective surface (12), or the third protective surface (13) of the ordinary protective area (8), the light beam is interrupted, which will generate a change in the switch signal. The dedicated control unit circuit works, and the corresponding indicator light and the trigger sound and light alarm (7) work. When the light beam emitted by the reflector is restored, the alarm of the corresponding indicator light and the alarm is deactivated, thereby achieving the purpose of safety alarm protection during the equipment debugging operation.

[0027] Electrical safety protection principles for the operating area: See Figure 1 , Figure 2 When the button switch SB1 is turned on, the control unit is powered on. The reflective photoelectric switches F1 to F3 at both ends of the first protective surface (11), the second protective surface (12), and the third protective surface (13) of the ordinary protective zone (8) are powered on. The light beam emitted from them is reflected by the reflector on the opposite side and returns to the receiver. When the light beam of any transmitter in the first protective surface (11), the second protective surface (12), or the third protective surface (13) is interrupted, a change in the switch signal will be generated. Then the indicator light H1 (or H2 or H3) and the corresponding diode will work, the relay K2 will be energized, the normally open contact K2.1 will be closed, and the alarm BJQ will work and alarm. When the light beam is restored, the indicator light H1 (or H2 or H3) and the corresponding diode will stop working, the relay K2 will be de-energized, the normally open contact K2.1 will be opened, and the alarm BJQ will stop working.

[0028] Safety protection design of the working area: The working area of ​​the mechanism is surrounded by the fourth protective surface (14), the fifth protective surface (15), and the sixth protective surface (16). Each protective surface is equipped with a reflective photoelectric switch and a reflective mirror on both sides. The beam emitted from the transmitter of the reflective photoelectric switch is reflected by the reflective mirror on the opposite side and returns to the receiver. When a person collides with the fourth protective surface (14), the fifth protective surface (15), and the sixth protective surface (16) of the prohibited area (9), the beam is interrupted and a switch signal change is generated. The corresponding dedicated control unit circuit works and triggers the sound and light alarm (7) to work. At the same time, the corresponding control circuit of the pitch mechanism equipment is cut off, so that the pitch mechanism equipment stops moving. When the beam emitted by the reflector is restored, the corresponding indicator light stops working, but the alarm continues to work and the control circuit of the pitch mechanism continues to be disconnected. Only by starting the reset switch SB2 can the alarm (7) be disconnected and the control circuit of the pitch mechanism equipment be reconnected so that the equipment can operate normally, thereby achieving the purpose of safety alarm and emergency stop protection during equipment debugging and operation.

[0029] Electrical safety principles for the work area of ​​the institution: See Figure 1 , Figure 2 When button switch SB1 is turned on, the control unit is powered on. The reflective photoelectric switches F4 to F6 on the fourth protective surface (14), fifth protective surface (15), and sixth protective surface (16) of the restricted area (9) are energized. The light beam emitted from them is reflected by the reflector on the opposite side and returns to the receiver. When the light beam of any transmitter on the fourth protective surface (14), fifth protective surface (15), or sixth protective surface (16) is interrupted, a change in the switch signal will occur. Then, indicator light H4 (or H5 or H6) and the corresponding diode will work, relay K1 will be energized, and the normally open contact K1.1 of the emergency stop follow current circuit will be closed. The normally open contact K1.2 will be closed, relay K2 will be energized, and the normally open contact K2.1 will be closed. The alarm BJQ will work and alarm. The normally closed contact K1.3 on the equipment control circuit will be opened, and the control circuit of the pitch mechanism will be de-energized. When the light beam is restored, indicator light H4 (or H5 or H6) and the corresponding diode will stop working, the alarm circuit will continue to work, and the control circuit of the pitch mechanism will continue to be de-energized. When the reset switch SB2 is activated, relay K1 is de-energized, and the normally open contact K1.1 of the emergency stop follow current circuit opens; the normally open contact K1.2 opens, relay K2 is de-energized, the normally open contact K2.1 opens, and the alarm BJQ stops working; the normally closed contact K1.3 on the equipment control circuit is closed, and the pitch mechanism equipment can be re-energized and resume normal operation.

[0030] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic safety protection device for a pitch equipment debugging bench, characterized in that, include: The operation area (8) is surrounded by a first protective surface (11), a second protective surface (12) and a third protective surface (13), and the work area (9) is surrounded by a fourth protective surface (14), a fifth protective surface (15) and a sixth protective surface (16). Each protective surface is equipped with a reflective photoelectric switch and a reflective mirror on both sides. The light beam emitted from the emitter of the reflective photoelectric switch is reflected by the reflective mirror on the opposite side to form a light beam. The reflective photoelectric switch is electrically connected to the control unit, and the control unit is connected to the sound and light alarm (7) and the control circuit of the pitch equipment.

2. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, The reflective photoelectric switch of the operation area (8) includes a first photoelectric switch (F1), a second photoelectric switch (F2) and a third photoelectric switch (F3), which are respectively disposed on one side of the first protective surface (11), the second protective surface (12) and the third protective surface (13).

3. The automatic safety protection device for the pitch equipment test bench according to claim 1 or 2, characterized in that, The reflective photoelectric switches in the working area (9) include a fourth photoelectric switch (F4), a fifth photoelectric switch (F5) and a sixth photoelectric switch (F6), which are respectively disposed on one side of the fourth protective surface (14), the fifth protective surface (15) and the sixth protective surface (16).

4. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, The control unit is configured to: trigger the audible and visual alarm (7) when the beam of any reflective photoelectric switch in the operation area (8) is interrupted, and keep the power supply of the pitch equipment on; trigger the audible and visual alarm (7) when the beam of any reflective photoelectric switch in the working area (9) is interrupted, and cut off the power supply of the pitch equipment.

5. The automatic safety protection device for the pitch equipment test bench according to claim 4, characterized in that, The control unit also includes a reset switch SB2, which is configured to be manually operated to stop the alarm and restore the power supply to the pitch equipment after the trigger state of the working area (9) is released.

6. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, The control unit includes a first relay (K1) and a second relay (K2); the coil of the first relay (K1) is linked with the reflective photoelectric switch of the working area (9) to control the power supply of the pitch equipment; the coil of the second relay (K2) is linked with the reflective photoelectric switches of the operating area (8) and the working area (9) to control the on / off of the audible and visual alarm (7).

7. The automatic safety protection device for the pitch equipment test bench according to claim 6, characterized in that, The first relay (K1) includes a normally closed contact, which is connected in series in the control circuit of the pitch equipment; the second relay (K2) includes a normally open contact, which is connected in series in the circuit of the audible and visual alarm (7).

8. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, It also includes multiple status indicator lights, each of which is electrically connected to a reflective photoelectric switch to indicate the on / off status of the beam on the corresponding protective surface.

9. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, The reflective photoelectric switch is a diffuse reflection type photoelectric sensor.

10. The automatic safety protection device for the pitch equipment test bench according to claim 1, characterized in that, The device is installed on the pitch equipment test bench, and the operating area (8) and the working area (9) together constitute a safety protection area for the test bench.

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