CN218602364U - A packaging machine electric control switch - Google Patents

Abstract

The utility model provides a packagine machine electrical control switch belongs to the switch technology field. The electric control switch of the packaging machine comprises a first protection module and a second protection module. The controller of the utility model controls the second electric operating mechanism to work when the signal receiver receives the fault generating signal, so that the second electric operating mechanism controls the second switch to be switched off, and controls the relay to work when the signal receiver receives the package fault removing signal, so that the relay controls the second electric operating mechanism to control the second switch to be switched on; after the fault of the packaging machine is relieved, the electric appliance controls the second electric operating mechanism, so that the second electric operating mechanism controls the second switch to be closed, and the damage of the load caused by the fault switching-on of the power supply is reduced; the original connecting rod type operation circuit breaker is replaced by a protection module with an electric operation mechanism, and the problem of dislocation caused by abrasion and deformation due to frequent operation of an original mechanical connecting rod is solved.

Description

A packaging machine electric control switch

technical field

The utility model relates to the technical field of switches, in particular to an electronically controlled switch for a packaging machine.

Background technique

GD packaging machine equipment adopts rack modular MICRO II control system. The power switch system of this packaging machine adopts mechanical link type operation circuit breaker. Frequent opening of the power distribution cabinet door and long-term wear of the mechanical link will cause damage to the machine The connecting rod operation circuit breaker causes deformation and dislocation, causing the circuit breaker to fail to switch normally. At the same time, the load switch has a fault power-off function. When the switch trips, it needs to re-send power to the power supply, and the mechanical power transmission is difficult, causing equipment failure. The operating efficiency is low, the power supply part fails frequently, and the cabinet door needs to be opened frequently when finding the fault, and the closing operation of the connecting rod is performed repeatedly manually. There are many unpredictable factors, which bring certain hidden dangers to the personal safety and equipment safety of maintenance operators. .

Utility model content

The purpose of this utility model is to propose an electronically controlled switch for a packaging machine in view of the deficiencies of the above-mentioned prior art.

The utility model proposes an electric control switch for a packaging machine, which is used to control the running circuit of the packaging machine from the main power supply to the packaging machine, including a first protection module and a second protection module connected in series with the first protection module. A protection module includes a first switch and a first electric operating mechanism for converting the electric field into a magnetic field to control the disconnection of the first switch when a short circuit occurs in the running circuit of the packaging machine. The second protection module includes a second switch, a relay, A controller, a second electric operating mechanism for converting the electric field into a magnetic field to control the closing or opening of the second switch, and a signal receiver for receiving signals from the packaging machine; When the signal is generated, the controller controls the second electric operating mechanism to work, so that the second electric operating mechanism controls the second switch to be disconnected; the controller controls the relay to work when the signal receiver receives the packaging fault removal signal, so that the relay controls The second electric operating mechanism is used to control the closing of the second switch.

Further, the first electric operating mechanism is an electronic trip unit.

Further, the first protection module also includes a switch IQ0 with one end connected to the power supply and the other end connected to the B4 connector of the first switch. The B4 connector of the first switch is connected to the 220V live wire. The operating mechanism is an electronic trip unit IQ1, and the electronic trip unit IQ1 includes a first contact assembly for controlling the opening of the first switch and a second contact assembly for controlling the closing of the first switch. The contact assembly includes 3 contacts and 4 contacts, the second contact assembly includes 1 contact and 2 contacts, the 3 contacts of the first contact assembly are connected to the B4 connector of the first switch, and the 4 contacts are connected For the A4 connector of the first switch, the 1st contact of the second contact assembly is connected to the B4 connector of the first switch, and the 2nd contact is connected to the A2 connector of the first switch.

Further, the second electric operating mechanism is an electronic trip unit.

Further, the second protection module also includes an undervoltage coil connected in series with the second switch, and the controller controls the undervoltage coil to be powered off when the signal receiver receives a signal generated by a packaging machine failure, so that the second protection The module is powered off; the controller controls the undervoltage coil to be energized when the signal receiver receives the package failure release signal.

Further, the undervoltage coil is an undervoltage coil U< integrated with the first switch, the second protection module further includes a diode connected in parallel with the undervoltage coil, one end of the undervoltage coil U< is connected to the electric cabinet 0V terminal, the other end is connected to the controller.

Further, the B4 connector of the second switch is connected to the 220V live wire, the relay is a relay K2, and the relay K2 includes a third contact assembly and a fourth contact assembly for conducting when the third contact assembly is conducting. Contact assembly, the third contact assembly includes 5 contacts connected to the 0V terminal on the electric cabinet and 6 contacts connected to the controller, the fourth contact assembly includes 8 contacts, connected to the second switch The 7 contacts of the B4 connector, the second electric operating mechanism is an electronic trip unit IQ2, and the electronic trip unit IQ2 includes a fifth contact assembly for controlling the opening of the second switch, and for controlling the second The sixth contact assembly for switch closure, the fifth contact assembly includes 9 contacts and 10 contacts, the second contact assembly includes 11 contacts and 12 contacts, the 9 contacts of the fifth contact assembly Connected to the B4 joint of the second switch, the 10 contact is connected to the A4 joint of the second switch, the 11 contact of the sixth contact assembly is connected to the 8 contact of the fourth contact assembly, and the 12 contact is connected to the first The A2 connector of the second switch.

Further, the undervoltage coil is a Schneider LV429410 undervoltage coil.

Further, the relay is a Schneider RXM2LB2BD relay.

Further, both the first electric operating mechanism and the second electric operating mechanism are Schneider ETS2.3 electronic trip units. .

An electrical control switch for a packaging machine of the utility model has the following beneficial effects:

The electric control switch is installed in the running line of the packaging machine from the main power supply to the packaging machine. When the running line of the packaging machine is disconnected, the first electric operating mechanism converts the electric field into a magnetic field, so that the first switch can be controlled to be disconnected, and the packaging can be controlled. The machine running circuit is protected. When the packaging machine fails, the signal receiver receives the packaging machine failure signal sent by the packaging machine, and the controller controls the second electric operating mechanism to work, so that the second electric operating mechanism controls the second switch to turn off. open, the controller controls the relay to work when the signal receiver receives the packaging failure release signal, so that the relay controls the second electric operating mechanism to control the second switch to close; install a relay in the second protection module, and the packaging machine fault is released The rear relay controls the second electric operating mechanism, so that the second electric operating mechanism controls the closing of the second switch, which reduces the damage to the load caused by the faulty closing of the power supply; replace the original link-operated circuit breaker with an electric The protection module of the operating mechanism solves the misalignment problem caused by the wear and deformation caused by the frequent operation of the original mechanical connecting rod.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principle of the invention. In the drawings, like reference numerals are used to denote like elements. The accompanying drawings in the following description are some embodiments of the present utility model, but not all embodiments. Those skilled in the art can obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic diagram of an electric control switch of a packaging machine according to an embodiment of the present invention;

Fig. 2 is a schematic circuit diagram of a first protection module in an electric control switch of a packaging machine according to an embodiment of the present invention;

Fig. 3 is a schematic circuit diagram of a second protection module in an electric control switch of a packaging machine according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the utility model more clear, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the utility model. Obviously, the described The embodiments are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

See Figure 1-3. An electric control switch for a packaging machine according to an embodiment of the utility model is used to control the operating circuit of the packaging machine from the main power supply to the packaging machine, including a first protection module, a second protection module connected in series with the first protection module, and a second protection module connected in series. A protection module includes a first switch and a first electric operating mechanism for converting the electric field into a magnetic field to control the disconnection of the first switch when a short circuit occurs in the running circuit of the packaging machine. The second protection module includes a second switch, a relay, and a controller , the second electric operating mechanism used to convert the electric field into a magnetic field to control the closing or opening of the second switch, and the signal receiver used to receive the signal of the packaging machine; the controller controls when the signal receiver receives the signal generated by the packaging machine failure The controller controls the second electric operating mechanism to work, so that the second electric operating mechanism controls the second switch to be disconnected; the controller controls the relay to work when the signal receiver receives the packaging fault removal signal, so that the relay controls the second electric operating mechanism to Control the second switch to close.

Specifically, the main power supply supplies power to the packaging machine, and the main power supply, packaging machine, and corresponding wires form the circuit of the packaging machine. In order to ensure the safe operation of the circuit of the packaging machine, the circuit of the packaging machine needs a structure similar to a circuit breaker. The switching device that closes, carries and breaks the current under normal circuit conditions and can close, carry and break the current under abnormal circuit conditions within a specified time, connects the two ends of the electric control switch of the packaging machine in this application They are respectively connected to the main power supply and the packaging machine, and the electric control switch of the packaging machine controls the running circuit of the packaging machine from the main power supply to the packaging machine. In this application, the first protection module is set as a structure with a circuit breaker function, that is, the When a short circuit occurs in the running circuit, the first electric operating mechanism converts the electric field into a magnetic field, and the first electric operating mechanism controls the first switch to be disconnected through the magnetic field, thereby disconnecting the running circuit of the packaging machine and protecting the packaging machine. In order to find the fault when the packaging machine fails, it is necessary to disconnect the packaging machine line, the packaging machine sends a packaging machine failure signal to the signal receiver, the controller controls the second electric operating mechanism to work, and the second electric operating mechanism converts the electric field It is the magnetic field, and the second switch is controlled by the magnetic field to turn off; after the fault of the packaging machine is eliminated, the packaging machine sends a fault removal signal to the signal receiver, and the controller controls the operation of the relay. When the specified requirements are met, an electrical appliance that causes the controlled quantity to undergo a predetermined step change in the electrical output circuit. It has an interactive relationship between the control system and the controlled system. Usually used in automatic control circuits, it is actually an "automatic switch" that uses a small current to control the operation of a large current. Therefore, it plays the role of automatic adjustment, safety protection, conversion circuit, etc. in the circuit. The relay controls the second electric operating mechanism to work, so that the second electric operating mechanism converts the electric field into a magnetic field, and the second switch is controlled by the magnetic field. The fault closing of the power supply belt causes damage to the load.

The first electric operating mechanism may be an electronic trip unit.

Specifically, optimize the tripping mechanism of the first protection module, replace the original thermal-magnetic tripping unit with an electronic tripping unit, use transformer technology to isolate strong and weak currents, realize automatic control and ensure the safety of personal equipment, making tripping Faster, more reliable protection. The first protection module is used as a circuit breaker, as a circuit breaker with an electric operating mechanism, only a switch is replaced, and the mechanical linkage is replaced by an electric button type. The first action operating mechanism and the first switch may have an integrated structure.

The first protection module can also include a switch IQ0 with one end connected to the power supply and the other end connected to the B4 connector of the first switch. The B4 connector of the first switch is connected to the 220V live wire. The trip unit IQ1 includes a first contact assembly for controlling the opening of the first switch and a second contact assembly for controlling the closing of the first switch. The first contact assembly includes 3 contacts, 4 contacts, and the second The contact assembly includes 1 contact and 2 contacts. The 3 contacts of the first contact assembly are connected to the B4 joint of the first switch, and the 4 contacts are connected to the A4 joint of the first switch. The 1 contact of the second contact assembly The point is connected to the B4 connector of the first switch, and the 2 contacts are connected to the A2 connector of the first switch.

Specifically, when a short circuit occurs in the operating line of the packaging machine, contacts 1 and 2 of the electronic trip unit IQ1 are turned on, so that the electronic trip unit IQ1 controls the first switch to be disconnected. After the short circuit fault of the operating line of the packaging machine is eliminated, the electronic Contacts 3 and 4 of the trip unit IQ1 are closed, so that the electronic trip unit IQ1 controls the first switch to close. 401, 402, and 403 in Fig. 2 are all three-phase 380V power supplies, 701 is a 220V live wire, and 702 is a neutral wire.

The second electric operating mechanism may be an electronic trip unit.

Specifically, optimize the tripping mechanism of the second protection module, replace the original thermal-magnetic tripping unit with an electronic tripping unit, use transformer technology to isolate strong and weak currents, realize automatic control and ensure the safety of personal equipment, making tripping The buckle is faster and the protection is more reliable.

The second protection module may also include an undervoltage coil connected in series with the second switch, and the controller controls the undervoltage coil to be powered off when the signal receiver receives a signal generated by a packaging machine failure, so that the second protection module is powered off; the controller The controller controls the undervoltage coil to be energized when the signal receiver receives the signal that the packaging fault is removed.

Specifically, an undervoltage tripping coil is added on the basis of the electronic trip unit to realize the undervoltage protection function that the fault is not eliminated after the fault shutdown power supply trips.

The undervoltage coil can be an undervoltage coil U< integrated with the first switch. The second protection module also includes a diode connected in parallel with the undervoltage coil. One end of the undervoltage coil U< is connected to the 0V terminal on the electric cabinet, and the other end is connected to the controller. The undervoltage coil, the second switch, and the second electric operating mechanism can be of an integrated structure.

The B4 joint of the second switch can be connected to the 220V fire wire, and the relay is a relay K2, and the relay K2 includes a third contact assembly and a fourth contact assembly for conducting when the third contact assembly is conducting, the third contact The assembly includes 5 contacts connected to the 0V terminal on the electric cabinet and 6 contacts connected to the controller. The fourth contact assembly includes 8 contacts and 7 contacts connected to the B4 connector of the second switch. The second electric operation The mechanism is the electronic trip unit IQ2. The electronic trip unit IQ2 includes a fifth contact assembly for controlling the opening of the second switch and a sixth contact assembly for controlling the closing of the second switch. The fifth contact assembly includes 9 Contacts, 10 contacts, the second contact assembly includes 11 contacts, 12 contacts, the 9 contacts of the fifth contact assembly are connected to the B4 connector of the second switch, and the 10 contacts are connected to the A4 connector of the second switch , the 11 contact of the sixth contact assembly is connected to the 8 contact of the fourth contact assembly, and the 12 contact is connected to the A2 connector of the second switch.

Specifically, when the receiver receives the fault generation signal, the controller controls the contacts 9 and 10 of the electronic trip unit IQ2 to conduct, so that the second switch is disconnected; the third contact assembly of the relay K2 is a DC control assembly . The fourth contact assembly is an AC control assembly. After the fault is removed, the receiver receives the fault removal signal, and the controller controls the third contact assembly of the relay K2 to conduct, so that the fourth contact assembly conducts and realizes control electronics. The contacts 11 and 12 of the trip unit IQ2 are turned on, so that the electronic trip unit IQ2 controls the closing of the second switch. In Figure 3, 401, 402, and 403 are all three-phase 380V power supplies, 404, 405, and 406 are all three-phase 380V secondary power supplies, 701 is 220V live wire, 702 is neutral wire, and 707 is for controlling the disconnection of the second switch Signal, 706 is the signal for controlling the closing of the second switch, 423 is the 0V terminal of the electric cabinet, 662 is the automatic closing signal of the electric cabinet, 983 is the display signal when the second switch is closed on the electric cabinet, 194 is the 24V terminal of the electric cabinet, 383 is the braking signal of the packaging machine, 421 is the 24V terminal of the electric cabinet, 708 is the control signal of the relay, L1, L2, L3 are the total power supply of 380V, which are used to power the packaging machine.

The undervoltage coil may be a Schneider LV429410 undervoltage coil.

The relay can be a Schneider RXM2LB2BD relay.

Both the first electric operating mechanism and the second electric operating mechanism can be Schneider ETS2.3 electronic trip units.

Specifically, this application sets the first protection module as a circuit breaker with an electric operating mechanism on the basis of the original mechanical link-operated circuit breaker. The existing first switch and second switch are link-operated circuit breakers, which automatically After the breaker is broken, manual closing is required to solve the problem of dislocation caused by the wear and deformation caused by the frequent operation of the original mechanical connecting rod. The tripping mechanism of the circuit breaker is optimized, and the original thermal magnetic tripping unit is replaced with an electronic tripping unit. The device technology isolates the strong and weak electricity, making the trip more rapid and the protection more reliable; after the original fault shutdown signal is introduced, the second switch trips, and the undervoltage tripping coil is added on the basis of the electronic trip unit to realize the second switch of the fault shutdown After tripping, the undervoltage protection function has not eliminated the fault; after the fault is solved, it needs to be closed manually, and a relay is installed. After the fault is eliminated, the power supply will automatically close, which reduces the damage to the load caused by the faulty closing of the second switch.

The content described above can be implemented independently or combined in various ways, and these variants are all within the protection scope of the present utility model.

It should be noted that in the description of this application, the terms "upper end", "lower end" and "bottom end" of the indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the product used in this application. The orientation or positional relationship that is conventionally placed at the time is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the referred device must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to this application. limits. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a" does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: it can still modify the technical solutions described in the aforementioned embodiments, or perform equivalent replacements for some of the technical features; and These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims (10)

1. An electric control switch for a packaging machine, used to control the running circuit of the packaging machine from the main power supply to the packaging machine, characterized in that: it includes a first protection module and a second protection module connected in series with the first protection module, so The first protection module includes a first switch and a first electric operating mechanism for converting the electric field into a magnetic field to control the opening of the first switch when a short circuit occurs in the running circuit of the packaging machine, and the second protection module includes a second switch, A relay, a controller, a second electric operating mechanism for converting the electric field into a magnetic field to control the closing or opening of the second switch, and a signal receiver for receiving signals from the packaging machine; When the machine failure generates a signal, the controller controls the second electric operating mechanism to work, so that the second electric operating mechanism controls the second switch to be disconnected; the controller controls the relay to work when the signal receiver receives the packaging fault removal signal, so that The relay controls the second electric operating mechanism to control the second switch to close. 2. The electronic control switch of a packaging machine according to claim 1, wherein the first electric operating mechanism is an electronic trip unit. 3. The electronic control switch of a packaging machine according to claim 2, wherein the first protection module further includes a switch IQ0 with one end connected to the power supply and the other end connected to the B4 connector of the first switch, The B4 connector of the first switch is connected to the 220V live wire, the first electric operating mechanism is an electronic trip unit IQ1, and the electronic trip unit IQ1 includes a first contact assembly for controlling the opening of the first switch and The second contact assembly used to control the closing of the first switch, the first contact assembly includes 3 contacts and 4 contacts, the second contact assembly includes 1 contact and 2 contacts, the first contact The 3 contacts of the assembly are connected to the B4 connector of the first switch, the 4 contacts are connected to the A4 connector of the first switch, the 1 contact of the second contact assembly is connected to the B4 connector of the first switch, and the 2 contacts are connected to to the A2 connector of the first switch. 4. An electric control switch for a packaging machine according to claim 2 or 3, wherein the second electric operating mechanism is an electronic trip unit. 5. The electrical control switch of a packaging machine according to claim 4, characterized in that: the second protection module further includes an undervoltage coil connected in series with the second switch, and the controller receives the When the machine failure generates a signal, the controller controls the undervoltage coil to be powered off, so that the second protection module is powered off; the controller controls the undervoltage coil to be powered on when the signal receiver receives the packaging fault removal signal. 6. An electric control switch for a packaging machine according to claim 5, characterized in that: the undervoltage coil is an undervoltage coil U< integrated with the first switch, and the second protection module also includes an undervoltage coil A diode connected in parallel to the voltage coil, one end of the undervoltage coil U< is connected to the 0V terminal on the electric cabinet, and the other end is connected to the controller. 7. An electric control switch for a packaging machine according to claim 6, characterized in that: the B4 connector of the second switch is connected to the 220V live wire, the relay is a relay K2, and the relay K2 includes a third contact assembly and a fourth contact assembly for conducting when the third contact assembly is conducting, the third contact assembly includes 5 contacts connected to the 0V terminal on the electric cabinet and 6 contacts connected to the controller , the fourth contact assembly includes 8 contacts, 7 contacts connected to the B4 connector of the second switch, the second electric operating mechanism is an electronic trip unit IQ2, and the electronic trip unit IQ2 includes The fifth contact assembly for controlling the opening of the second switch and the sixth contact assembly for controlling the closing of the second switch, the fifth contact assembly includes 9 contacts and 10 contacts, and the second contact assembly includes 11 contacts, 12 contacts, the 9 contacts of the fifth contact assembly are connected to the B4 joint of the second switch, the 10 contacts are connected to the A4 joint of the second switch, and the 11 contacts of the sixth contact assembly The 8 contacts and 12 contacts connected to the fourth contact assembly are connected to the A2 connector of the second switch. 8. The electronic control switch of a packaging machine according to claim 5, wherein the undervoltage coil is a Schneider LV429410 undervoltage coil. 9. An electric control switch for a packaging machine according to claim 1 or 2, wherein the relay is a Schneider RXM2LB2BD relay. 10. The electronic control switch of a packaging machine according to claim 4, characterized in that: the first electric operating mechanism and the second electric operating mechanism are both Schneider ETS2.3 electronic trip units.

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