Liquid packaging equipment

Abstract

The utility model discloses liquid packaging equipment, which comprises a filter, a relay, a packaging machine, an electro connecting pressure gauge, an electromagnetic valve and a power supply, a discharge port of the filter is connected with a feed port of the packaging machine, the electro connecting pressure gauge is used for measuring the pressure of a filter screen of the filter, and the electromagnetic valve is arranged on an enabling pipeline of the packaging machine; a first output end of the power supply, a first end of a first switch in the electric contact pressure gauge and a first end of a second switch in the relay are coupled to a first node; a second end of a first switch in the electric contact pressure gauge is coupled with a first input end of the relay; the second output end of the power supply, the second input end of the relay and the first input end of the electromagnetic valve are coupled to a second node; and the second end of a second switch in the relay is coupled with the second input end of the electromagnetic valve. According to the utility model, the packing machine can be automatically stopped when the pressure of the filter screen has more impurity particles, and the problem of product quality caused by filtering failure is avoided.

Description

Technical Field

[0001] The utility model relates to the field of coating packaging, and more specifically to a liquid packaging device. Background Art

[0002] The packaging filters commonly used in workshops are equipped with pointer pressure gauges. During filtration, as the filtration process progresses, the filter bags accumulate numerous impurities and other particles, which are a significant factor affecting product quality. Currently, there's no established replacement pressure for filter bags. Typically, filtration is stopped and replaced only after a certain number of packaging barrels have been filled, or when the filtration speed slows or even stops, forcing the equipment to shut down. During this process, as the internal pressure of the filter continues to increase, many impurities can penetrate the filter bag and enter the finished product, causing quality issues and filtration failure.

[0003] The existing solution to this problem relies on manual experience to specify different packaging procedures, replacing filter bags directly after they reach a specified pressure or number of barrels. This solution is costly in terms of labor and materials, and is prone to excessive replacement, resulting in waste, or omissions, leading to quality issues. Utility Model Content

[0004] The utility model provides a liquid packaging device to solve at least one of the problems existing in the prior art.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] The utility model provides a liquid packaging device, which includes a filter, a relay, a packaging machine, an electric contact pressure gauge, a solenoid valve and a power supply, wherein:

[0007] The filter outlet is connected to the inlet of the packaging machine. The electric contact pressure gauge is configured to measure the filter screen pressure of the filter. The solenoid valve is provided on the enabling pipeline of the packaging machine.

[0008] The first output terminal of the power supply, the first terminal of the first switch in the electric contact pressure gauge, and the first terminal of the second switch in the relay are coupled to a first node;

[0009] The second end of the first switch in the electric contact pressure gauge is coupled to the first input end of the relay;

[0010] The second output terminal of the power supply, the second input terminal of the relay and the first input terminal of the solenoid valve are coupled to a second node;

[0011] The second end of the second switch in the relay is coupled to the second input end of the solenoid valve.

[0012] Optionally, the enabling pipeline is a gas source pipeline.

[0013] Optionally, the electric contact pressure gauge is provided with a trigger pressure value adjustment component.

[0014] Optionally, the electric contact pressure gauge is provided with a pressure value dial.

[0015] Optionally, the power supply is a DC power supply.

[0016] Optionally, the first output end of the DC power supply is configured to output a 24V DC voltage.

[0017] Optionally, the trigger pressure value adjustment component is a pointer adjustment component.

[0018] Optionally, the model of the electric contact pressure gauge is YX-100 electric contact pressure gauge.

[0019] Optionally, the relay is an electromagnetic relay, and its model is JZX-22F electromagnetic relay.

[0020] Optionally, the liquid packaging equipment further includes a power contactor,

[0021] A first end of the third switch in the electric contact pressure gauge is coupled to the first output end of the power supply, and a second end of the third switch in the electric contact pressure gauge is coupled to the first input end of the relay;

[0022] The second input terminal of the relay is coupled to the second output terminal of the power supply;

[0023] A first end of the fourth switch in the relay is coupled to the first input end of the power contactor, a second end of the fourth switch in the relay is coupled to the live wire of the mains, and a second input end of the power contactor is coupled to the neutral wire of the mains.

[0024] The beneficial effects of the utility model are as follows:

[0025] This utility model uses an electric contact pressure gauge to compare the filter screen pressure measured with a set trigger pressure. This comparison results in a switch network consisting of relays and solenoid valves to control the operation of the packaging machine. This ensures that when the measured filter screen pressure exceeds the trigger pressure, the packaging machine is shut down, allowing staff to replace the filter bag after the shutdown. This low-cost solution solves the problem of filtration anomalies during packaging operations, reduces product quality risks, and reduces labor and packaging material costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings.

[0027] Figure 1 A schematic diagram showing a liquid packaging device of the present invention;

[0028] Figure 2 Another schematic diagram of the liquid packaging equipment of the present invention is shown. DETAILED DESCRIPTION

[0029] To more clearly illustrate the present invention, the present invention is further described below in conjunction with preferred embodiments and accompanying drawings. Similar components in the accompanying drawings are represented by the same reference numerals. Those skilled in the art should understand that the following detailed description is illustrative rather than restrictive and should not be used to limit the scope of protection of the present invention.

[0030] This utility model provides a liquid packaging device that automatically shuts down upon reaching a set trigger pressure, reminding the operator to replace the filter bag. This low-cost solution addresses filter filtration anomalies within the protective device, reducing product quality risks while also reducing labor and packaging material costs.

[0031] The utility model provides a liquid packaging device, which includes a filter, a relay, a packaging machine, an electric contact pressure gauge, a solenoid valve and a power supply, wherein:

[0032] The filter outlet is connected to the packaging machine inlet, the electric contact pressure gauge is set to measure the filter screen pressure of the filter, and the solenoid valve is set on the packaging machine's enabling pipeline;

[0033] A first output terminal of the power supply, a first terminal of the first switch in the electric contact pressure gauge, and a first terminal of the second switch in the relay are coupled to a first node;

[0034] The second end of the first switch in the electric contact pressure gauge is coupled to the first input end of the relay;

[0035] The second output terminal of the power supply, the second input terminal of the relay and the first input terminal of the solenoid valve are coupled to a second node;

[0036] The second end of the second switch in the relay is coupled to the second input end of the solenoid valve.

[0037] A solenoid valve is installed on the packaging machine's enabling line and air source, controlling the on / off switching of the packaging machine's air source. The electric contact pressure gauge is equipped with a trigger pressure adjustment component, specifically a pointer adjustment component that can be adjusted by sliding a pointer. The electric contact pressure gauge has a first trigger pressure and a second trigger pressure, where the second trigger pressure is greater than the first. The electric contact pressure gauge also features a pressure dial to display the measured pressure.

[0038] The pressure measured by the electric contact pressure gauge is lower than the first trigger pressure, and the electric contact pressure gauge outputs a first level control signal to control the first switch to close, so that the electromagnetic relay coil is energized to control the second switch to close, and the packaging machine starts working; the pressure measured by the electric contact pressure gauge is higher than the first trigger pressure, and the electric contact pressure gauge outputs a second level control signal to control the first switch to open, so that the electromagnetic relay coil is de-energized, the second switch is opened, and the packaging machine stops working.

[0039] When the packaging machine stops working, the staff can replace the filter bag; after replacing the filter bag, the filter screen pressure of the filter is measured again by the electric contact pressure gauge. The pressure measured by the electric contact pressure gauge is lower than the first trigger pressure. The electric contact pressure gauge outputs a first level control signal to control the first switch to close, so that the electromagnetic relay coil is energized to control the second switch to close, and the packaging machine is controlled to resume work.

[0040] The liquid packaging equipment also includes a power contactor, a first end of the third switch in the electric contact pressure gauge is coupled to the first output end of the power supply, and a second end of the third switch in the electric contact pressure gauge is coupled to the first input end of the relay; the second input end of the relay is coupled to the second output end of the power supply; a first end of the fourth switch in the relay is coupled to the first input end of the power contactor, a second end of the fourth switch in the relay is coupled to the live wire 220V of the mains power, and a second input end of the power contactor is coupled to the neutral wire of the mains power.

[0041] The pressure measured by the electric contact pressure gauge is greater than the first trigger pressure, but the packaging machine does not stop working until the pressure inside the filter measured by the electric contact pressure gauge reaches the second trigger pressure. The third switch in the electric contact pressure gauge is disconnected, and a third level control signal is output to the relay through the electric contact pressure gauge. After receiving the third level control signal, the relay disconnects the fourth switch and stops supplying power to the power contactor, thereby disconnecting the packaging machine from the power supply and stopping the entire liquid packaging equipment from working.

[0042] The liquid packaging equipment is a coating packaging equipment. The power supply in the equipment is a DC power supply. The first output terminal of the DC power supply is configured to output a 24V DC voltage.

[0043] The model of the electric contact pressure gauge is YX-100 electric contact pressure gauge, and the relay is an electromagnetic relay, and its model is JZX-22F electromagnetic relay.

[0044] In a specific embodiment, Figure 1 As shown, the liquid packaging equipment is a coating packaging equipment, which includes a filter, a relay, a packaging machine, an electric contact pressure gauge, a solenoid valve and a power supply (the filter is not shown).

[0045] The filter outlet is connected to the packaging machine inlet, the electric contact pressure gauge is set to measure the filter screen pressure of the filter, and the solenoid valve is set on the packaging machine's enabling pipeline;

[0046] A first output terminal of the power supply, a first terminal of the first switch S1 in the electric contact pressure gauge, and a first terminal of the second switch S2 in the relay are coupled to a first node;

[0047] The second end of the first switch S1 in the electric contact pressure gauge is coupled to the first input end A1 of the relay;

[0048] The second output terminal of the power supply, the second input terminal A2 of the relay and the first input terminal of the solenoid valve are coupled to a second node;

[0049] A second end of the second switch S2 in the relay is coupled to the second input end of the solenoid valve.

[0050] The solenoid valve is installed on the gas source pipeline of the packaging machine, and the on and off of the gas source pipeline of the packaging machine is controlled by the solenoid valve;

[0051] The first switch S1 in the electric contact pressure gauge is a normally closed switch. The electric contact pressure gauge is equipped with a trigger pressure value adjustment component, which is a dial-adjustable pointer. The relay is an electromagnetic relay, and the second switch S2 of the electromagnetic relay is a normally open switch.

[0052] The input power of the power supply is 220VAC alternating current, which is converted into direct current through the transformer action of the power supply, and the output is 24VDC direct current. The first output terminal of the power supply is connected to the first end of the first switch S1 of the electric contact pressure gauge, and is also connected to the first end of the second switch S2 of the electromagnetic relay coil. The second switch S2 of the electromagnetic relay coil is normally open. After the electromagnetic relay coil is energized and attracted, the second switch S2 is closed and connected; the second end of the first switch S1 of the electric contact pressure gauge is connected to the first input end A1 of the electromagnetic relay coil, and the second input end A2 of the electromagnetic relay coil is connected to the second output terminal of the power supply. The second output terminal of the power supply is also connected to the second end of the solenoid valve, and the first end of the solenoid valve is connected to the second end of the second switch S2.

[0053] The electromagnetic relay coil is used to supply power to the solenoid valve to control the opening or closing of the packaging machine, thereby preventing the electric contact pressure gauge from directly supplying power to the solenoid valve and increasing the stability of the device.

[0054] The electric contact pressure gauge is used to set and detect pressure, as well as to send a level control signal to the electromagnetic relay coil. In this embodiment, a first trigger pressure and a second trigger pressure are set, with the second trigger pressure being greater than the first. The pressure inside the filter measured by the electric contact pressure gauge is compared with the first and second trigger pressures, and the liquid packaging equipment is controlled based on the comparison results. Specifically, the first trigger pressure P1 of the electric contact pressure gauge is set to 3 MPa, and the second trigger pressure P2 is set to 4 MPa. When the pressure P inside the filter measured by the electric contact pressure gauge is less than the first trigger pressure P1 (3 MPa), the first switch S1 of the electric contact pressure gauge is in a closed state, and a first level control signal is sent to the electromagnetic relay coil through the electric contact pressure gauge, so that the electromagnetic relay coil is energized to control the second switch S2 to close, and the electromagnetic relay coil supplies power to the solenoid valve, the solenoid valve opens normally, and the packaging machine works normally; when the pressure P measured by the electric contact pressure gauge is greater than or equal to the first trigger pressure P1 (3 MPa), the first switch S1 of the electric contact pressure gauge is controlled to be disconnected, and a second level control signal is sent to the electromagnetic relay coil through the electric contact pressure gauge, so that the electromagnetic relay coil controls the second switch S2 to be disconnected, stops supplying power to the solenoid valve, and the solenoid valve automatically closes, cutting off the gas source of the packaging machine, and the packaging machine stops working. When the pressure P measured by the electric contact pressure gauge is greater than or equal to the first trigger pressure of 3 MPa, only the packaging machine stops working. The other components of the entire liquid packaging equipment are still in working condition. After the packaging machine stops working, the staff can replace the filter bag. After replacing the filter bag, the pressure inside the filter is measured again by the electric contact pressure gauge and compared with the first trigger pressure P1. When the pressure P inside the filter measured by the electric contact pressure gauge after replacing the filter bag is less than the first trigger pressure P1 (3 MPa), the first switch S1 of the electric contact pressure gauge is closed, and the electric contact pressure gauge sends a first level control signal to the electromagnetic relay coil, so that the electromagnetic relay coil is energized to control the second switch S2 to close. The electromagnetic relay coil is then powered to the solenoid valve, which opens the solenoid valve and the packaging machine resumes operation.

[0055] When the pressure measured by the electric contact pressure gauge is greater than the first trigger pressure, but the packaging machine does not stop working, set the second trigger pressure P2 of the electric contact pressure gauge to 4Mpa, compare the pressure P measured by the electric contact pressure gauge with the second trigger pressure P2, and control the power contactor on and off according to the comparison result to protect the liquid packaging equipment. Figure 2 As shown, it should be noted that the first switch S1 in the electric contact pressure gauge and the second switch S2 in the relay are Figure 2Not shown, the liquid packaging equipment also includes a power contactor, the first output end of the power supply is connected to the first end of the third switch S3 of the electric contact pressure gauge, the second end of the third switch S3 is connected to the first input end A1 of the relay, the second input end A2 of the relay is connected to the second output end of the power supply, the first end of the fourth switch S4 of the relay is connected to the first input end A3 of the power contactor, the second end of the fourth switch S4 of the relay is connected to the mains 220VAC, and the second input end A4 of the power contactor is connected to the neutral line N of the mains.

[0056] When the pressure P inside the filter measured by the electric contact pressure gauge is greater than or equal to the second trigger pressure P2 (4 MPa), the third switch S3 of the electric contact pressure gauge is disconnected, and a third level control signal is sent to the relay through the electric contact pressure gauge. After receiving the third level control signal, the relay disconnects the fourth switch S4, stops supplying power to the power contactor, disconnects the liquid packaging equipment from the power supply, and stops the entire liquid packaging equipment from working to avoid other abnormalities.

[0057] This utility model uses a comparison result between the filter screen pressure measured by an electric contact pressure gauge and a set trigger pressure to control the operation of the packaging machine through a first switch network consisting of relays and solenoid valves. When the measured filter screen pressure exceeds the first trigger pressure, the packaging machine is shut down, allowing workers to replace the filter bag after the shutdown. A second switch network consisting of relays and power contactors controls the operation of the liquid packaging equipment. When the measured filter screen pressure exceeds the second trigger pressure, the power is disconnected, thereby protecting the liquid packaging equipment. This utility model solves the problem of filtration anomalies during packaging operations at a low cost, reduces product quality risks, and reduces labor costs and packaging material costs.

[0058] In the description of the present invention, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0059] It should also be noted that, in the description of the present invention, relational terms such as first and second, etc., are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further restrictions, an element defined by the statement "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0060] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is impossible to list all the implementation methods here. All obvious changes or modifications derived from the technical solution of the present invention are still within the scope of protection of the present invention.

Claims

1. A liquid packaging device, characterized in that: It includes filters, relays, packaging machines, electric contact pressure gauges, solenoid valves and power supplies, among which, The filter outlet is connected to the packaging machine inlet. The electric contact pressure gauge is configured to measure the filter screen pressure of the filter. The solenoid valve is provided on the enabling pipeline of the packaging machine. The first output terminal of the power supply, the first terminal of the first switch in the electric contact pressure gauge, and the first terminal of the second switch in the relay are coupled to a first node; The second end of the first switch in the electric contact pressure gauge is coupled to the first input end of the relay; The second output terminal of the power supply, the second input terminal of the relay and the first input terminal of the solenoid valve are coupled to a second node; The second end of the second switch in the relay is coupled to the second input end of the solenoid valve.

2. The device according to claim 1, characterized in that The enabling pipeline is a gas source pipeline.

3. The device according to claim 1, characterized in that The electric contact pressure gauge is provided with a trigger pressure value adjustment component.

4. The device according to claim 3, characterized in that The electric contact pressure gauge is provided with a pressure value dial.

5. The device according to claim 1, characterized in that The power supply is a direct current power supply.

6. The device according to claim 5, characterized in that The first output terminal of the DC power supply is configured to output a 24V DC voltage.

7. The device according to claim 3, characterized in that The trigger pressure value adjustment component is a pointer adjustment component.

8. The device according to claim 3, characterized in that The model of the electric contact pressure gauge is YX-100 electric contact pressure gauge.

9. The device according to claim 1, characterized in that The relay is an electromagnetic relay, and its model is JZX-22F electromagnetic relay.

10. The device according to claim 1, characterized in that The liquid packaging equipment also includes a power contactor, A first end of the third switch in the electric contact pressure gauge is coupled to the first output end of the power supply, and a second end of the third switch in the electric contact pressure gauge is coupled to the first input end of the relay; The second input terminal of the relay is coupled to the second output terminal of the power supply; A first end of the fourth switch in the relay is coupled to the first input end of the power contactor, a second end of the fourth switch in the relay is coupled to the live wire of the mains, and a second input end of the power contactor is coupled to the neutral wire of the mains.

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