Packaging system

Abstract

The utility model provides a packaging system. The packaging system comprises a paper wrapping machine, a glue machine and an external power supply, an external power supply is connected to the paper wrapping machine through a main power supply circuit; the main power supply line is connected with an auxiliary power supply line, and the auxiliary power supply line is connected to a glue machine; a main power supply control switch is arranged on the main power supply circuit, a glue machine power supply control switch is arranged on the auxiliary power supply circuit, and the main power supply control switch is located between the auxiliary power supply circuit and a wiring point of the main power supply circuit and the paper wrapping machine. According to the scheme, the power supply circuit structures of the paper covering machine and the glue machine are improved, when the paper covering machine is shut down for maintenance, the glue machine can maintain working, and synchronous power failure of the glue machine and the paper covering machine and re-heating after cooling and starting of the glue machine are avoided. While the maintenance of the paper wrapping machine is not influenced, the packaging downtime is saved, and the packaging operation efficiency is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging machinery, in particular to a packaging system. Background Art

[0002] Paper wrapping machines are packaging machines used by beer manufacturers to package cases of beer, often in conjunction with a gluer. The gluer requires heat to melt the adhesive and bond the wrappers. To ensure efficient packaging, multiple paper wrapping machines are typically deployed throughout the packaging system, operating simultaneously.

[0003] For example, the packaging system of the packaging department of a beer production company includes 14 paper wrapping machines, each of which corresponds to a glue machine. The corresponding paper wrapping machines and glue machines are controlled by the same master switch and powered simultaneously. The existing paper wrapping machine power supply system has the following drawbacks: when a paper wrapping machine malfunctions and requires maintenance (for example, replacing a component), a power outage is required. During a power outage, the main switch must be turned off, at which point all power to the paper wrapping machine is disconnected, and the power to the subordinate glue machines is also cut off, stopping heating. After the glue machines lose power, their temperatures drop. After the maintenance is completed and power is restored, the glue machines cannot reach the set startup temperature due to the power outage. Therefore, they need to wait for the temperature to rise to the set temperature before the paper wrapping machine can start up. This temperature-raising process takes approximately 10-30 minutes (depending on the downtime and the extent of the temperature drop). This problem affects the packaging efficiency of the production line. Utility Model Content

[0004] The purpose of the utility model is to solve one of the above technical problems, provide a packaging system, improve the power supply structure of the paper bag machine system, and shorten the recovery time after a fault.

[0005] To achieve the above purpose, in view of the deficiencies in the prior art, the solution adopted by the present invention is:

[0006] A packaging system includes a paper wrapping machine, a glue machine and an external power supply;

[0007] The external power supply is connected to the paper packaging machine via the main power supply line;

[0008] The main power supply circuit is connected to the auxiliary power supply circuit, and the auxiliary power supply circuit is connected to the melter;

[0009] The main power supply circuit is provided with a main power supply control switch, the auxiliary power supply circuit is provided with a glue machine power supply control switch, and the main power supply control switch is located between the auxiliary power supply circuit, the main power supply circuit connection point and the paper packaging machine.

[0010] In some embodiments of the present invention, a contactor and a contactor control circuit are further included. The contactor is arranged on the auxiliary power supply line and is connected in series with the glue machine power supply control switch. The contactor control circuit is electrically connected to the contactor to control the contactor to be powered on or off.

[0011] In some embodiments of the present invention, the packaging system further comprises a main controller: electrically connected to the main power supply control switch to detect a closed state of the main power supply control switch;

[0012] The contactor control circuit includes:

[0013] Relay R1: connected between the contactor and the melter power supply control switch. The relay R1 is electrically connected to the main controller, receives the control signal from the main controller, controls the action of the relay contacts R1-1 and R1-2, and further controls the power on or off of the contactor.

[0014] In some embodiments of the present invention, the relay contacts R1-1 include a first center contact COM, a normally open contact NO, and a first normally closed contact NC;

[0015] The first center contact COM is connected between the contactor and the melter power supply control switch, and can be selectively connected to the normally open contact NO or the first normally closed contact NC.

[0016] In some embodiments of the present invention, the relay further includes a timer T1 and a timing control circuit, the timer T1 includes a timer T1 contact and a timer T1 coil, and the relay contact R1-2 includes a second center contact COM and a second normally closed contact NC;

[0017] The timer T1 contact is set in the circuit where the first normally closed contact NC is located; the second normally closed contact NC and the first normally closed contact NC operate synchronously;

[0018] The timer T1 coil is electrically connected to the second normally closed contact NC;

[0019] The timer T1 coil is electrically connected to the timer T1 contact.

[0020] In some embodiments of the present invention, an alarm is also included;

[0021] The contactor includes a normally open contact;

[0022] The main controller is electrically connected to the normally open contact of the contactor to detect the open and closed state of the normally open contact of the contactor;

[0023] The main controller is electrically connected to the alarm to control the operation of the alarm.

[0024] In some embodiments of the present invention, the contactor is a 220V AC contactor.

[0025] The power supply system for a paper bagging machine provided by the utility model has the following beneficial effects:

[0026] 1. This solution improves the power supply circuit structure of the paper wrapping machine and glue machine. When the paper wrapping machine is shut down for maintenance, the glue machine can continue to operate, avoiding simultaneous power outages on the glue machine and the paper wrapping machine, which would cool down and require reheating after restart. While ensuring that maintenance of the paper wrapping machine is not affected, it also saves packaging downtime and ensures packaging efficiency.

[0027] 2. The glue machine has added a delayed power-off function to avoid the paper bag machine needing to be powered off for a long time. Even if you only turn off the main switch of the paper bag machine and forget to turn off the glue machine control switch, the glue machine can automatically power off after a scheduled time to prevent the glue machine from working for a long time. Long-term dry burning will affect the health of the glue machine, while saving energy and reducing consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or descriptions of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0029] Figure 1 This is the schematic diagram of the power supply circuit for the paper packaging machine.

[0030] 1- Main power supply line;

[0031] 2- Auxiliary power supply line;

[0032] 3- Main power supply control switch;

[0033] 4- Melter power supply control switch;

[0034] 5-Contactor. DETAILED DESCRIPTION

[0035] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0036] According to an embodiment of the present invention, a packaging system is provided. Figure 1 The implementation of the embodiments of the present application is described in detail.

[0037] The packaging system includes a wrapper, a gluer, and a power supply circuit for these machines. One wrapper and one gluer can be installed together on a packaging line. The power supply circuit includes an external power supply that provides power to the entire packaging system.

[0038] Wherein, the external power supply is connected to the paper packaging machine via the main power supply line;

[0039] The main power supply line 1 is connected to the auxiliary power supply line 2, and the auxiliary power supply line 2 is connected to the melter;

[0040] A main power supply control switch 3 is provided on the main power supply circuit 1, and a glue machine power supply control switch 4 is provided on the auxiliary power supply circuit 2. The main power supply control switch 3 is located between the connection point between the auxiliary power supply circuit 2 and the main power supply circuit 1 and the paper wrapping machine, that is, between the external power supply and the main power supply control switch 3, and the auxiliary power supply circuit 2 is connected to power the glue machine.

[0041] like Figure 1 The circuit structure shown in the figure is that the external power supply is 380V three-phase electricity, and the main power supply circuit 1 includes U (corresponding to Figure 1 L1), V (corresponding to Figure 1 L2), W (corresponding to Figure 1 In the three-phase line L3), the main power supply control switch 3 includes three switches respectively set on the U phase, V phase and W phase. When the three main power supply control switches 3 are turned on at the same time, the power supply line of the paper packaging machine is connected and the paper packaging machine starts working.

[0042] It should be understood that the auxiliary power supply circuit 2 also includes a three-phase line, and the melter power supply control switch 4 includes three switches respectively set on the three phases. When the melter power supply control switch 4 is turned on at the same time, the melter power supply line is connected and the melter starts working.

[0043] During packaging operations, close both the main power control switch 3 and the gluer power control switch 4 simultaneously, allowing the wrapping machine and gluer to operate simultaneously. If the wrapping machine requires maintenance, disconnect the main power control switch 3, causing the wrapping machine to stop operating and allowing maintenance to proceed. During this time, the gluer power control switch 4 remains closed, ensuring power to the gluer remains connected, allowing the gluer to maintain heating and the glue temperature, eliminating the need to re-energize and reheat the gluer after shutting down the wrapping machine. Maintenance work typically takes 0.5-2 hours without shutting down the gluer.

[0044] Some embodiments of the present invention further include a contactor 5 and a contactor control circuit. The contactor 5 is disposed on the auxiliary power supply line 2 and is connected in series with the melter power supply control switch 4. The contactor control circuit is electrically connected to the contactor 5 to control the power on and off of the contactor 5. The contactor is a 220V AC contactor. The contactor control circuit sends a control signal to control the on and off of the contactor. When the contactor 5 remains in the closed state, the melter is powered normally. When the contactor 5 is in the open state, the melter is powered off.

[0045] Continue to refer Figure 1 Some embodiments of the present invention include a main controller, which can be a PLC controller. The main controller is electrically connected to the main power control switch 3 to detect the closed state of the main power control switch. The contactor control circuit specifically includes a relay, which is electrically connected to the main controller and receives feedback from the main controller on the closed state of the main power control switch. In the present invention, the closed state of the main power control switch is fed back via the state of contact point Q0.3.

[0046] The relay contact R1-1 is connected between the contactor 5 and the melter power supply control switch 4. The relay R1 is electrically connected to the main controller and receives a control signal from the main controller to control the action of the relay contact.

[0047] Specifically, when the main controller feeds back that the main power supply control switch 3 is in the closed state, the relay R1 receives the signal, and the relay R1 outputs the signal to the contactor 5 in the first state. At this time, the contactor 5 is in the first controlled state, and the closed state is maintained, and the melter is powered normally; when the main controller feeds back that the main power supply control switch 3 is in the open state, the relay R1 receives the signal, and the relay R1 outputs the signal to the contactor 5 in the second state. At this time, the contactor 5 is in the second controlled state, and the melter is also in the second controlled state.

[0048] In this embodiment, the second controlled state is a delayed shutdown state, which is specifically implemented through the following implementation scheme.

[0049] Relay contacts can be divided into relay contacts R1-1 and relay contacts R1-2. In some specific embodiments of the present invention, relay contact R1-1 includes a first center contact COM, a normally open contact NO, and a first normally closed contact NC; relay contact R1-2 includes a second center contact COM and a second normally closed contact NC. As a relay with a timing function, this relay also includes a timer T1, which specifically includes timer T1 contacts and a timer T1 coil.

[0050] The first center contact COM is connected between the contactor and the melter power supply control switch, and can be selectively connected to the normally open contact NO or the first normally closed contact NC; the first state corresponds to the state where the normally open contact NO is connected, and the second state corresponds to the state where the first normally closed contact NC is connected.

[0051] The timer T1 is started in the second controlled state, and can control the contactor 5 to be opened at a timely manner.

[0052] The timer T1 contact is set in the same circuit as the first normally closed contact NC; the second normally closed contact NC operates synchronously with the first normally closed contact NC. That is, when the first normally closed contact NC is closed, the second normally closed contact NC is closed, and the first normally closed contact NC is opened, and the second normally closed contact NC is opened.

[0053] The timer T1 is electrically connected to the second normally closed contact NC to collect the timing signal.

[0054] The timer T1 coil is electrically connected to the timer T1 contact to control the closing or opening of the timer contact T1.

[0055] Figure 1 In the circuit, the relay R1 is located in the relay coil circuit, and the relay contact R1-1 is located in the contactor coil control circuit.

[0056] It should be understood that when the main controller reports that the main power supply control switch 3 is in the closed state, the relay (relay coil) receives this signal and controls the center contact COM of the relay contact R1-1 to connect to the normally open contact NO. At this time, the melter is normally powered. When the main controller reports that the main power supply control switch 3 is in the open state, the relay (relay coil) receives this signal and loses power, controlling the first center contact COM of the relay contact R1-1 to connect to the first normally closed contact NC. At this time, the power supply state of the contactor 5 can be controlled by controlling the state of the timer T1 contact. When the timer T1 contact is closed, the contactor 5 continues to supply power and can remain in the closed state, and the melter is normally powered. When the timer T1 contact is open, the contactor stops supplying power and is in the open state, and the melter is powered off. The state of the timer T1 contact is controlled according to the time signal.

[0057] When the main controller feeds back that the main power supply control switch 3 is in the off state, the relay (relay coil) receives the signal and loses power. At the same time, the timer T1 coil is powered through the relay contact R1-2, and the timing state begins. The timer T1 contact is controlled by the timing time signal.

[0058] The timing signal of timer T1 is fed back to the timer T1 coil control circuit, and the timer T1 coil control circuit is electrically connected to the timer T1 contact, and controls the closing or opening of the timer contact T1 according to the timing signal.

[0059] It should be understood that the first center contact COM of R1-1 is connected to the first normally closed contact NC. In the default state, the timer T1 contact is in the closed state. The closure of the relay contact R1-2 supplies power to the coil of the timer T1. The coil of the timer T1 starts timing after being energized. When the timing time ends, the timer T1 contact is combined with the working status signal of the paper packaging machine and can be controlled to the disconnected state. That is, if the timing time is up and the paper packaging machine does not resume work, that is, the circuit where the normally open contact NO of the relay contact R1-1 is located is not connected, then the contactor 5 is powered off and the glue machine is powered off.

[0060] By adopting the above scheme, an automatic delayed power-off function of the glue machine is added. Even if the operator only turns off the main power supply control switch 3, the paper packaging machine is not started for a long time after maintenance, and the added glue machine power supply control switch 4 is forgotten to be turned off for a long time, the glue machine will automatically cut off the power after continuing to work for a predetermined time, for example, 0.5-2 hours (adjustable), effectively preventing dry burning and power waste caused by continued heating of the glue machine.

[0061] In some embodiments of the present invention, an alarm is further included; the main controller is electrically connected to the auxiliary normally open contact NO of the contactor 5 to detect the open and closed state of the auxiliary normally open contact NO of the contactor 5; the main controller is electrically connected to the alarm to control the operation of the alarm.

[0062] The alarm function activates only when the melter is operating normally. It provides feedback on whether the melter is online when the paper bag machine starts normally. When the paper bag machine starts normally and the normally open contact NO of relay contact R1-1 closes, the coil of contactor 5 is energized, closing the auxiliary normally open contact MGS / W1-1 of contactor 5. This signal is sent to main controller I6.0, and the alarm does not sound. However, if the auxiliary normally open contact of contactor 5 is not connected, indicating that the melter is at risk of power failure or is in a power-off state, the alarm will sound. After the melter starts normally, the alarm will not sound. In addition, if the main power supply control switch 3 is disconnected, the alarm will not sound because the main controller has lost power.

[0063] The alarm feedback is the state of the auxiliary normally open contact NO of the contactor. When the contactor 5 is energized, it is energized and is fed back to the main controller to serve as an alarm for the glue machine during normal operation. When the paper bag machine is powered off, the main controller is also powered off and the alarm feedback becomes invalid.

[0064] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A packaging system, characterized in that: Including paper wrapping machine, glue machine and external power supply; The external power supply is connected to the paper packaging machine via the main power supply line; The main power supply circuit is connected to the auxiliary power supply circuit, and the auxiliary power supply circuit is connected to the melter; The main power supply line is provided with a main power supply control switch, the auxiliary power supply line is provided with a glue machine power supply control switch, and the main power supply control switch is located between the auxiliary power supply line, the main power supply line connection point and the paper packaging machine.

2. The packaging system according to claim 1, wherein: It also includes a contactor and a contactor control circuit. The contactor is arranged on the auxiliary power supply line and is connected in series with the glue machine power supply control switch. The contactor control circuit is electrically connected to the contactor to control the contactor to be powered on or off.

3. The packaging system according to claim 2, wherein: The packaging system further includes a main controller electrically connected to the main power supply control switch to detect a closed state of the main power supply control switch; The contactor control circuit includes: Relay R1: connected between the contactor and the melter power supply control switch. The relay R1 is electrically connected to the main controller, receives the control signal from the main controller, controls the action of the relay contacts R1-1 and R1-2, and further controls the power on or off of the contactor.

4. The packaging system according to claim 3, wherein: The relay contacts R1-1 include a first center contact COM, a normally open contact NO, and a first normally closed contact NC; The first center contact COM is connected between the contactor and the melter power supply control switch, and can be selectively connected to the normally open contact NO or the first normally closed contact NC.

5. The packaging system according to claim 4, wherein: The relay further includes a timer T1 and a timing control circuit. The timer T1 includes a timer T1 contact and a timer T1 coil. The relay contact R1-2 includes a second center contact COM and a second normally closed contact NC. The timer T1 contact is set in the circuit where the first normally closed contact NC is located; the second normally closed contact NC and the first normally closed contact NC operate synchronously; The timer T1 coil is electrically connected to the second normally closed contact NC; The timer T1 coil is electrically connected to the timer T1 contact.

6. The packaging system according to claim 4, wherein: Also includes alarm; The contactor includes a normally open contact; The main controller is electrically connected to the normally open contact of the contactor to detect the open and closed state of the normally open contact of the contactor; The main controller is electrically connected to the alarm to control the operation of the alarm.

7. The packaging system according to any one of claims 2 to 6, characterized in that The contactor is a 220V AC contactor.

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