Safety protection system of filament dividing machine

Abstract

The utility model discloses a safety protection system of a filament dividing machine, which comprises a safety protection structure arranged at the rotating part of the filament dividing machine; the filament separating machine start-stop control system is connected with the safety protection structure; the filament splitting machine start-stop control system comprises a start-stop control circuit and a proximity switch connected to the start-stop control circuit in parallel, and the proximity switch makes contact with the safety protection structure and is used for sensing the installation state of the safety protection structure; the start-stop control circuit comprises a frequency converter start-stop circuit and a scroll counting switch circuit which are connected in parallel between a null line and a live line, the frequency converter start-stop circuit is used for controlling the start-stop of the frequency converter of the wire dividing machine, and the scroll counting switch circuit is used for controlling the start-stop of the scroll of the wire dividing machine. The protection structure is connected with the equipment start-stop control system, so that linkage control is realized, when the safety protection structure is not normally locked, the equipment cannot be normally opened, and the purpose of safe operation is achieved.

Description

Technical Field

[0001] The present application relates to a safety protection device for a wire splitting machine, and belongs to the technical field of wire equipment protection. Background Art

[0002] A wire splitter is a device specially used to cut long and thin materials such as silk threads and fibers into specified lengths. It is usually used in industrial fields such as wire processing. The working principle of the wire splitter is to divide the filaments into the required lengths through the rotation or reciprocating motion of the blade or cutting head. In the production process, due to the complexity of the production process, the safety of the workers in the production process cannot be effectively guaranteed. Therefore, it is necessary to set up a protective structure for protection, but at present, most of them are installed with protective covers and corresponding protective structures on the rotating part of the wire splitter, or safety warning signs and operating specifications are prompted at the corresponding positions. At the same time, the safety protective cover can only play a partial protective role and cannot be synchronized with the start and stop of the equipment. If the safety protective cover falls off, it cannot play a good protective role. Therefore, it cannot really effectively solve the problem of equipment defects and cannot fundamentally solve the potential dangers of personnel during operation. Utility Model Content

[0003] According to one aspect of the present application, a wire splitting machine safety protection system is provided. The system realizes linkage control by connecting the protection structure with the equipment start and stop control system. When the safety protection structure is not locked normally, the equipment will not be able to start normally, thereby achieving the purpose of safe operation.

[0004] A wire splitting machine safety protection system, characterized by comprising:

[0005] Safety protection structure, installed on the rotating part of the wire dividing machine;

[0006] A start and stop control system for the wire splitting machine, connected to the safety protection structure;

[0007] The start-stop control system of the wire splitting machine includes a start-stop control circuit and a proximity switch connected in parallel to the start-stop control circuit, wherein the proximity switch is non-contactly connected to the safety protection structure and is used to sense the installation state of the safety protection cover;

[0008] The start-stop control circuit includes a frequency converter start-stop circuit and a wire reel counting switch circuit connected in parallel between the neutral line and the live line. The frequency converter start-stop circuit is used to control the start and stop of the frequency converter of the wire dividing machine, and the wire reel counting switch is used to control the start and stop of the wire reel of the wire dividing machine.

[0009] Furthermore, the inverter start-stop circuit includes an inverter start button switch, an inverter shutdown button switch, an inverter button normally open contact, an inverter normally closed contact and an inverter intermediate relay coil connected in series in sequence;

[0010] The live wire end is connected to the inverter start button switch;

[0011] The inverter intermediate relay coil is connected to the neutral line terminal.

[0012] Furthermore, the wire reel counting switch circuit includes a wire reel button normally open contact, a wire reel stroke normally closed contact and an intermediate relay coil which are connected in series in sequence;

[0013] The live wire end is connected to the normally open contact of the wire reel button;

[0014] The intermediate relay coil is connected to the neutral line terminal.

[0015] Furthermore, the live wire is also connected to a wire-winding motor, and the wire-winding motor is used to control the start and stop of the wire-splitting machine.

[0016] Furthermore, the live wire is a 380V three-phase wire.

[0017] Furthermore, a motor frequency converter is connected between the three-phase line and the wire-winding motor, and a normally open contact of a motor frequency converter button is connected in parallel to the motor frequency converter.

[0018] Furthermore, the safety protection structure is a safety protection cover.

[0019] The beneficial effects of this application include:

[0020] 1) The present application provides a wire splitting machine safety protection system, which has a safety protection structure and a wire splitting machine start-stop control system, wherein the wire splitting machine start-stop control system includes a start-stop control circuit and a proximity switch connected in parallel to the start-stop control circuit, wherein the proximity switch is connected to the safety protection cover and is used to sense the installation status of the safety protection structure; the start-stop control circuit includes a frequency converter start-stop circuit and a wire reel counting switch circuit connected in parallel between the neutral line and the live line, wherein the frequency converter start-stop circuit is used to control the start-stop of the frequency converter of the wire splitting machine, and the wire reel counting switch is used to control the start-stop of the wire reel of the wire splitting machine. By connecting the protection structure with the equipment start-stop control system, linkage control is achieved. When the safety protection structure is not locked normally, the equipment will not be able to open normally, thereby achieving the purpose of safe operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of a safety protection system for a wire splitting machine in one embodiment of the present application. DETAILED DESCRIPTION

[0022] The present application is described in detail below with reference to embodiments, but the present application is not limited to these embodiments.

[0023] See also Figure 1, a wire splitting machine safety protection system, characterized in that it includes:

[0024] Safety protection structure, installed on the rotating part of the wire dividing machine;

[0025] Among them, usually, the shaft has high-speed rotating parts, and it is necessary to avoid damage caused by rotating parts during operation; installing the safety protection structure on the rotating part of the wire dividing machine can effectively prevent or avoid the occurrence of dangerous conditions;

[0026] However, the safety protection structure may not be installed securely or locked properly, so it is necessary to jointly control the safety protection structure with the start and stop control system of the wire splitting machine to achieve the purpose of safety protection.

[0027] A start and stop control system for the wire splitting machine, connected to the safety protection structure;

[0028] The start-stop control system of the wire splitting machine includes a start-stop control circuit and a proximity switch SQ2 connected in parallel to the start-stop control circuit, wherein the proximity switch SQ2 is non-contactly connected to the safety protection structure and is used to sense the installation state of the safety protection structure;

[0029] Among them, the proximity switch SQ2 is used to detect the approach or presence of a safety protection structure without physical contact with the safety protection structure. When used in conjunction with a safety protection structure (such as a safety cover), the proximity switch can ensure that the machine or equipment will not be activated when the safety protection structure is not properly installed or opened, thereby increasing the safety of the workplace;

[0030] The proximity switch SQ2 is installed on the fixed part of the machine or equipment (wire splitter), while the safety protection structure (such as the safety cover) is movable or removable; the proximity switch is placed in the area that the safety protection structure should pass through when it is closed or correctly installed. In this way, when the safety protection structure is in the closed or correctly installed position, it triggers the sensing area of ​​the proximity switch; the proximity switch has a specific sensing distance, which refers to the maximum distance from the sensing face of the switch to the object that can be detected. This distance needs to be selected and adjusted according to the actual application, among which the use distance of the proximity switch should be set within 2 / 3 of the rated distance.

[0031] The start-stop control circuit includes a frequency converter start-stop circuit and a wire reel counting switch circuit connected in parallel between the neutral line N and the live wires L1, L2, and L3. The frequency converter start-stop circuit is used to control the start and stop of the frequency converter of the wire dividing machine, and the wire reel counting switch is used to control the start and stop of the wire reel of the wire dividing machine.

[0032] Specifically, a proximity switch is provided to be connected to the safety protection structure, and when it is sensed that the safety protection structure is in a normally closed state, the device can stop running; otherwise, the device starts running.

[0033] Among them, the proximity switch is a position switch that can be operated without mechanical contact with the part to be sensed. When the part to be sensed approaches the switch to a certain position, the switch sends a signal to achieve automatic stroke control and counting control.

[0034] At the same time, an emergency stop switch SBO is also connected in series between the live wire and the start-stop control system of the wire splitting machine.

[0035] The inverter start-stop circuit includes an inverter start button switch SB1, an inverter shutdown button switch SB2, an inverter button normally open contact KA3, an inverter normally closed contact KA2 and an inverter intermediate relay coil KA11 which are connected in series in sequence.

[0036] The wire reel counting switch circuit comprises a wire reel button normally open contact KA13, a wire reel stroke normally closed contact SQ1 and an intermediate relay coil KA21 which are connected in series in sequence.

[0037] The live wire is also connected to a wire-winding motor M1, and the wire-winding motor M1 is used to control the start and stop of the wire-splitting machine.

[0038] Specifically, when the (safety door) proximity switch SQ2 is not closed, the equipment safety protection cannot function, and the equipment cannot start the wire-winding motor M1, and the machine cannot rotate, that is, the wire-winding motor M1 can only be started when the safety door proximity switch SQ2 is closed.

[0039] The live wire is a 380V three-phase wire L1, L2, L3.

[0040] A motor frequency converter is connected between the three-phase line and the wire-winding motor, and a normally open contact KA12 of the motor frequency converter button is connected in parallel to the motor frequency converter.

[0041] Specifically, Figure 1 As shown, R, S, and T terminals are connected to the 380V three-phase line to the input line of the motor inverter, and U, V, and W terminals are connected to the three-phase output line of the motor inverter to the motor, wherein the input end of the three-phase line is connected to the power supply.

[0042] The safety protection structure is a safety protection cover.

[0043] Specifically, the safety guard is used to protect the rotating parts of the mechanical equipment. In equipment with rotating parts, especially in the positions of blades, rollers, etc. that rotate at high speed, the safety guard is indispensable. In this case, other devices with protective functions can also be installed, which are not limited here.

[0044] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. A wire splitting machine safety protection system, characterized in that: include: Safety protection structure, installed on the rotating part of the wire dividing machine; A start and stop control system for the wire splitting machine, connected to the safety protection structure; The start-stop control system of the wire splitting machine includes a start-stop control circuit and a proximity switch connected in parallel to the start-stop control circuit, wherein the proximity switch is non-contactly connected to the safety protection structure and is used to sense the installation state of the safety protection structure; The start-stop control circuit includes a frequency converter start-stop circuit and a wire reel counting switch circuit connected in parallel between the neutral line and the live line. The frequency converter start-stop circuit is used to control the start and stop of the frequency converter of the wire dividing machine, and the wire reel counting switch is used to control the start and stop of the wire reel of the wire dividing machine.

2. A wire splitting machine safety protection system according to claim 1, characterized in that: The inverter start-stop circuit comprises an inverter start button switch, an inverter shutdown button switch, an inverter button normally open contact, an inverter normally closed contact and an inverter intermediate relay coil which are connected in series in sequence; The live wire is connected to the inverter start button switch; The inverter intermediate relay coil is connected to the neutral line.

3. A wire splitting machine safety protection system according to claim 1, characterized in that: The wire reel counting switch circuit comprises a wire reel button normally open contact, a wire reel stroke normally closed contact and an intermediate relay coil which are connected in series in sequence; The live wire is connected to the normally open contact of the wire reel button; The intermediate relay coil is connected to the neutral line.

4. A wire splitting machine safety protection system according to claim 3, characterized in that: The live wire is also connected to a wire-winding motor, and the wire-winding motor is used to control the start and stop of the wire-splitting machine.

5. A wire splitting machine safety protection system according to claim 4, characterized in that: The live wire is a 380V three-phase wire.

6. A wire splitting machine safety protection system according to claim 5, characterized in that: A motor frequency converter is connected between the three-phase line and the wire-winding motor, and a normally open contact of a motor frequency converter button is connected in parallel to the motor frequency converter.

7. A wire splitting machine safety protection system according to claim 1, characterized in that: The safety protection structure is a safety protection cover.

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