Fan and steam linkage control structure of labeling machine

Abstract

The utility model relates to the technical field of labeling machines, in particular to a fan and steam linkage control structure of a labeling machine, which comprises a labeling machine and an electric cabinet, a steam shrinkage furnace is arranged on the side surface of the labeling machine, and a steam guide fan and a water blowing fan are mounted at the upper end of the steam shrinkage furnace. The steam inlet end of the steam guide fan is connected with a steam pipeline, the other end of the steam pipeline is provided with a steam pneumatic stop valve, a stop valve controller is installed on the steam pneumatic stop valve, an electric cabinet door is fixedly hinged to the outer portion of the electric cabinet, and a PLC and a fan contactor are installed in the electric cabinet. The electric cabinet door is provided with a fan operation indicator, a fan fault indicator, a manual and automatic switching knob and an emergency stop button. The fan and steam linkage control structure of the labeling machine is in signal butt joint with the working state of the labeling machine through the PLC, start-stop control over the labeling machine and linkage control over the fan and steam are achieved in combination with the steam pneumatic stop valve and the fan contactor, a circuit can be closed in time, and more energy is saved in use.

Description

Technical Field

[0001] The utility model relates to the technical field of label applicators, and particularly relates to a fan and steam linkage control structure of a label applicator. Background Art

[0002] A label applicator is an automated device mainly used for sleeving labels (usually plastic or paper shrink films) onto bottles, cans or other packaging containers. Currently, two label applicators are used in the hot filling line. The label applicator uses steam as a heat source to shrink the label, and at the same time, a 5.5KW fan is used on the outlet side to blow the moisture on the product surface, which is used as needed during the actual production process. When the production is going smoothly, one single machine can be shut down for production.

[0003] During the production of the existing label applicator, if the fan is not needed, personnel need to manually operate to turn off the fan, but often the situation occurs that the personnel forget to turn it off, resulting in waste of energy consumption. Content of the Utility Model

[0004] The purpose of the utility model is to provide a fan and steam linkage control structure of a label applicator to solve the problem proposed in the above background art that during the production of the current market label applicator, if the fan is not needed, personnel need to manually operate to turn off the fan, but often the situation occurs that the personnel forget to turn it off, resulting in waste of energy consumption.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A fan and steam linkage control structure of a label applicator, including a label applicator and an electric cabinet. A steam shrinkage furnace is arranged on the side of the label applicator, and a steam guiding fan and a water blowing fan are installed at the upper end of the steam shrinkage furnace. The steam inlet end of the steam guiding fan is connected to a steam pipeline, and the other end of the steam pipeline is provided with a steam pneumatic stop valve, and a stop valve controller is installed on the steam pneumatic stop valve. The electric cabinet door is hinged and fixed to the outside of the electric cabinet, and a PLC and a fan contactor are installed in the electric cabinet. The electric cabinet door is provided with a fan operation indicator, a fan fault indicator, a manual / automatic switching knob and an emergency stop button.

[0006] Preferably, the steam guiding fan is located at one end of the steam shrinkage furnace close to the label applicator, and the control lines of the steam guiding fan and the water blowing fan are respectively connected to the fan contactor.

[0007] Preferably, the fan contactor is connected to the PLC by a circuit.

[0008] Preferably, the fan contactor is electrically coordinated with the fan operation indicator and the fan fault indicator respectively.

[0009] Preferably, the manual / automatic switching knob and the emergency stop button are also respectively electrically connected to the PLC.

[0010] Preferably, the stop valve controller and the PLC are signal-connected through a cable.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The fan and steam linkage control structure of this labeling machine realizes signal docking with the working state signal of the labeling machine through the PLC, and combines the steam pneumatic stop valve and the fan contactor to realize the start-stop control of the labeling machine and the linkage control of the fan and steam, which can timely turn off the circuit and is more energy-saving. On the basis of the original labeling machine, the fan and steam linkage control structure of this labeling machine uses dry nodes for signal acquisition, is connected to the PLC through a simple cable, ensures complete isolation between the two circuits, improves the safety and reliability of the system, and realizes automatic control of signal acquisition. A status indicator, an emergency stop button, and a manual / automatic switching knob are added outside the electrical cabinet for easy operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic connection diagram of the steam shrinkage furnace, the steam guiding fan, and the water blowing fan of the fan and steam linkage control structure of a labeling machine of the present utility model;

[0013] Figure 2 It is a schematic diagram of the internal structure of the electrical cabinet of the fan and steam linkage control structure of a labeling machine of the present utility model;

[0014] Figure 3 It is a schematic diagram of the outer surface structure of the electrical cabinet door of the fan and steam linkage control structure of a labeling machine of the present utility model;

[0015] Figure 4 It is a schematic connection diagram of the steam pneumatic stop valve and the steam pipeline of the fan and steam linkage control structure of a labeling machine of the present utility model.

[0016] In the figure: 1. Labeling machine; 2. Steam shrinkage furnace; 3. Steam guiding fan; 4. Water blowing fan; 5. Electrical cabinet; 6. PLC; 7. Fan contactor; 8. Electrical cabinet door; 9. Fan operation indicator; 10. Fan fault indicator; 11. Manual / automatic switching knob; 12. Emergency stop button; 13. Steam pneumatic stop valve; 14. Steam pipeline; 15. Stop valve controller. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] Please refer toFigures 1-4, the present utility model provides a technical solution: a fan and steam linkage control structure for a label sleeving machine, including a label sleeving machine 1 and an electric cabinet 5. A steam shrinking furnace 2 is provided on the side of the label sleeving machine 1, and a steam guiding fan 3 and a water blowing fan 4 are installed at the upper end of the steam shrinking furnace 2. The steam guiding fan 3 is located at one end of the steam shrinking furnace 2 close to the label sleeving machine 1, and the control lines of the steam guiding fan 3 and the water blowing fan 4 are respectively connected to a fan contactor 7. This structure, the fan contactor 7 is an electrical device for controlling the start and stop of the fan. Especially in the case where the fan needs to be frequently started and stopped or remotely controlled, it can enable the steam guiding fan 3 and the water blowing fan 4 to perform automatic start and stop processing. The steam inlet end of the steam guiding fan 3 is connected to a steam pipeline 14, and the other end of the steam pipeline 14 is provided with a steam pneumatic stop valve 13, and a stop valve controller 15 is installed on the steam pneumatic stop valve 13. The stop valve controller 15 is signal-connected to the PLC 6 through a cable. This structure provides a control signal from the PLC 6 to the stop valve controller 15, allowing the solenoid valve of the stop valve controller 15 to control the direction of the compressed air, thereby controlling the opening or closing of the steam pneumatic stop valve 13, and further controlling the steam intake of the steam guiding fan 3. The signal acquisition between the stop valve controller 15 and the PLC 6 is carried out using dry contacts to ensure the safety of the circuit. The electric cabinet 5 is externally hinged and fixed with an electric cabinet door 8, and a PLC 6 and a fan contactor 7 are installed inside the electric cabinet 5. The fan contactor 7 is connected to the PLC 6 by a circuit. This structure, when the PLC 6 issues a start signal, the fan contactor 7 closes its main contacts, connecting the power supply to the fan motor, thereby starting the fan. When the PLC 6 issues a stop signal, the fan contactor 7 disconnects its main contacts, cutting off the connection of the power supply to the fan motor, thereby stopping the fan from running. It can realize the separate control of the steam guiding fan 3 and the water blowing fan 4. When the water blowing fan 4 is not needed, the start of the water blowing fan 4 can be stopped to achieve the purpose of energy saving. The electric cabinet door 8 is provided with a fan operation indicator 9, a fan fault indicator 10, a manual / automatic switching knob 11, and an emergency stop button 12. The fan contactor 7 is electrically coordinated with the fan operation indicator 9 and the fan fault indicator 10 respectively. This structure enables the opening signal and the fault signal of the fan contactor 7 to be timely feedback through the fan operation indicator 9 and the fan fault indicator 10 provided outside the electric cabinet door 8. The steam guiding fan 3 and the water blowing fan 4 are respectively provided with a fan operation indicator 9 and a fan fault indicator 10, which can timely perform maintenance on the steam guiding fan 3 and the water blowing fan 4 to ensure the safe operation of the equipment. The manual / automatic switching knob 11 and the emergency stop button 12 are also respectively electrically connected to the PLC 6. This structure, the manual / automatic switching knob 11 has two positions: manual and automatic. When the knob rotates to different positions, the internal contacts will change their states accordingly, thereby changing the circuit connection to achieve manual control or automatic control. When the manual / automatic switching knob 11 is in the automatic position, the knob will disconnect the manual control circuit and connect the automatic control circuit connected to the PLC 6.The system runs automatically according to a preset program. The emergency stop button 12 is usually a normally closed contact. When it is not pressed, the contact is closed and the circuit is on, allowing the labeling machine 1 to work properly. When the emergency stop button 12 is pressed, the PLC 6 detects the change in the input signal and immediately executes the preset emergency stop program, such as shutting down the motor and stopping the moving parts. By automatically controlling the shutdown of the fan, the situation of forgetting to turn it off is avoided, achieving the purpose of energy saving.

[0019] Working principle: When using the fan and steam linkage control structure of this labeling machine, first, without making any modifications to the original control of the labeling machine 1, add a PLC 6 in the electric cabinet 5 used for controlling the labeling machine 1. Through the signal control of the PLC 6 on the globe valve controller 15, the steam pneumatic globe valve 13 can receive start-stop signals. The fan contactor 7 is respectively connected to the control circuits of the steam guiding fan 3 and the water blowing fan 4, enabling the steam guiding fan 3 and the water blowing fan 4 to be linked and controlled, realizing the docking of the working state signals between the PLC 6 and the labeling machine 1. The fan operation indicator 9 and the fan fault indicator 10 arranged outside the electric cabinet door 8 are used to indicate the working states of the steam guiding fan 3 and the water blowing fan 4. The manual-automatic switching knob 11 is used for the adjustment of manual control and automatic control. The emergency stop button 12 is used for the emergency stop of the labeling machine 1. When the labeling machine 1 is performing the labeling work, the steam pneumatic globe valve 13 can automatically control the steam to be guided from the steam pipeline 14 to the steam guiding fan 3, and then the steam guiding fan 3 introduces the steam into the steam shrinkage furnace 2 for steam shrinkage treatment. The water blowing fan 4 blows and removes the excess water at the outlet end of the steam shrinkage furnace 2, thus completing a series of operations.

[0020] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A fan and steam linkage control structure of a labelling machine, comprising a labelling machine (1) and an electric cabinet (5), characterized in that: The side of the label sleeve machine (1) is provided with a steam shrinking furnace (2), and a steam guide fan (3) and a water blowing fan (4) are installed on the upper end of the steam shrinking furnace (2); the steam inlet end of the steam guide fan (3) is connected to a steam pipeline (14), and the other end of the steam pipeline (14) is provided with a steam pneumatic stop valve (13), and a stop valve controller (15) is installed on the steam pneumatic stop valve (13); the electric cabinet (5) is hingedly fixed with an electric cabinet door (8) on the outside, and a PLC (6) and a fan contactor (7) are installed in the electric cabinet (5); the electric cabinet door (8) is provided with a fan operation indicator (9), a fan fault indicator (10), a manual automatic switching knob (11) and an emergency stop button (12).

2. The fan and steam linkage control structure of a labeling machine according to claim 1 is characterized in that: The steam guide fan (3) is located at one end of the steam shrinking furnace (2) close to the sleeve labeling machine (1), and the control circuits of the steam guide fan (3) and the water blowing fan (4) are respectively connected to the fan contactor (7).

3. The fan and steam linkage control structure of a labeling machine according to claim 1 is characterized in that: The fan contactor (7) is connected to the PLC (6) via a circuit.

4. The fan and steam linkage control structure of a labeling machine according to claim 1, characterized in that: The fan contactor (7) is electrically coordinated with the fan operation indication (9) and the fan fault indication (10) respectively.

5. The fan and steam linkage control structure of a labeling machine according to claim 1, characterized in that: The manual-automatic switching knob (11) and the emergency stop button (12) are also electrically connected to the PLC (6) respectively.

6. The fan and steam linkage control structure of a labeling machine according to claim 1, characterized in that: The stop valve controller (15) and the PLC (6) are connected by signals via a cable.

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