Electronic glue-jet self-cleaning control device and method thereof

Abstract

The application discloses an electronic glue spraying self-cleaning control device and a method thereof, which comprises a first fuse FU1, a second fuse FU2, a tap water pump relay KM1, a sewage pump relay KM2, a first contactor FR1, a second contactor FR2, a cleaning tap water pump M1 and a sewage pump M2, wherein the first fuse FU1 and the second fuse FU2 are both provided with a fire wire end, a zero wire end and a ground wire end and are connected with a fire wire, a zero wire and a ground wire respectively; the first contactor FR1 and the second contactor FR2 both comprise a coil control end, a normally open contact and a normally closed contact; the normally open contact of the tap water pump relay KM1, the normally closed contact of the sewage pump relay KM2 and the first contactor FR1 are connected in series; the normally closed contact of the tap water pump relay KM1, the normally open contact of the sewage pump relay KM2 and the second contactor FR2 are connected in series; the first contactor FR1 is connected with a forward rotation control end of the cleaning tap water pump M1, and the second contactor FR2 is connected with a reverse rotation control end of the sewage pump M2.

Description

Technical Field

[0001] This invention belongs to the field of cigarette spray gun technology, specifically relating to an electronic adhesive spraying self-cleaning control device and method. Background Technology

[0002] Prolonged operation or inactivity of the high-speed electronic glue spraying system can cause glue solidification, stringing, and clogging of the nozzles, resulting in uneven glue application, abnormal application, and incorrect glue coverage during pre-drilled cigarette production. This leads to process defects and substandard cigarettes. To address this issue, glue is drained before startup, a process that is time-consuming and may not be completely thorough. In severe cases, disassembly of the spray gun and glue head is necessary. The spray gun's complex structure and precision components, including five high-speed solenoid valves and electronic devices, make disassembly difficult and require high installation accuracy. The glue head consists of multiple parts secured by locating pins and screws; each disassembly and reassembly causes positional shifts, even slight ones requiring adjustments to control system parameters, significantly impacting production. Furthermore, wear on screws and nuts and loose fits between components can lead to glue leakage. Summary of the Invention

[0003] To address the aforementioned technical problems in the existing technology, this invention provides an electronic spray adhesive self-cleaning control device and method, which solves the technical problems of adhesive solidification, stringing, and hole blockage in the nozzle caused by long-term operation or static placement of high-speed electronic spray adhesive systems.

[0004] The technical solution adopted in this invention is:

[0005] An electronic adhesive spraying self-cleaning control device, characterized in that it includes a first fuse FU1, a second fuse FU2, a water pump relay KM1, a sewage pump relay KM2, a first contactor FR1, a second contactor FR2, a cleaning water pump M1, and a sewage pump M2, wherein:

[0006] Both the first fuse FU1 and the second fuse FU2 are equipped with a live wire terminal, a neutral wire terminal, and a ground wire terminal, which are connected to the live wire, neutral wire, and ground wire respectively.

[0007] Both the first contactor FR1 and the second contactor FR2 include a coil control terminal, a normally open contact, and a normally closed contact;

[0008] The normally open contact of the water pump relay KM1, the normally closed contact of the sewage pump relay KM2, and the first contactor FR1 are connected in series; the normally closed contact of the water pump relay KM1, the normally open contact of the sewage pump relay KM2, and the second contactor FR2 are connected in series; the first contactor FR1 is connected to the forward control terminal of the cleaning water pump M1, and the second contactor FR2 is connected to the reverse control terminal of the sewage pump M2.

[0009] A self-cleaning control method for electronic adhesive spraying, characterized by comprising the following steps:

[0010] S1. After turning on the cleaning mode composite button SB1, the normally closed switch is opened, and the manual mode main circuit SB3 is disconnected.

[0011] S2, when the power-off delay relay KT is de-energized, the cleaning button SB2 needs to be activated within the specified time to clean the water pump protection device;

[0012] S3, the glue pump relay KM4 is de-energized, stopping glue supply;

[0013] S4. Sewage pump relay KM2 is energized, two-position three-way solenoid valve KM3 is energized, KM2 and KM3 are interlocked, sewage pump M2 works, glue gun body glue supply interface is closed.

[0014] S5. After the sewage relay KM2 is energized, it closes. If the cleaning button SB2 is pressed within the specified time of the power-off delay relay KT, the cleaning water pump M1 will work and lock itself. The glue gun body will work at its rated power to clean and rinse the glue head.

[0015] S6. After cleaning is complete, press the cleaning mode composite button SB1. The glue pump relay KM4 is powered on, the sewage pump relay KM2 and the normally closed circuit of the two-position three-way relay KM4 are disconnected, the two-position three-way solenoid valve KM3 is de-powered, the circuit is disconnected, the glue inlet 3 of the spray gun body is opened, the tap water inlet 2 is closed, the manual mode is restored, and the spray nozzle is soaked in clean water to the water level line.

[0016] S7. After the sewage pump relay KM2 is de-energized, the tap water pump relay KM1 is disconnected, the cleaning button SB2 cannot work, and the cleaning task ends.

[0017] When S8 and SB3 are activated, manual mode is enabled to drain the glue gun, allowing water to drain out until the glue flows smoothly, ready for production.

[0018] Compared with the prior art, the beneficial effects of the present invention are reflected in:

[0019] 1. This invention solves the problems of glue solidification, stringing, and hole blockage in the nozzle caused by long-term operation or static placement of high-speed electronic glue spraying systems. After each day's production, the spray gun body and glue spraying head are rinsed with tap water under high pressure to ensure that there is no residual glue in the cavity and the nozzle, keeping the glue spraying head clean at all times. This greatly reduces problems such as uneven glue application, glue application abnormalities, process defects, and unqualified cigarette products.

[0020] 2. This invention has the advantages of obvious cleaning effect, simple structure, no impact on the normal use of the original system, and easy manufacturing. It is suitable for self-cleaning of all high-speed electronic spraying systems, which can improve production efficiency, reduce machine downtime, and safeguard cigarette production.

[0021] 3. This invention improves production efficiency, simplifies operation, and reduces machine downtime. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of the closed two-position three-way solenoid valve in this invention.

[0023] Figure 2 This is a flowchart of the present invention.

[0024] Figure 3 This is the circuit diagram of the present invention.

[0025] Figure 4 This is the flow control diagram of the present invention.

[0026] Interface 1 is for glue gun body glue inlet, interface 2 is for tap water, and interface 3 is for glue supply.

[0027] Cleaning mode composite button SB1, cleaning button SB2, QF air circuit breaker, FU fuse, KM1 water pump relay, FR thermal relay, KM2 sewage pump relay, KM3 normally closed two-position three-way solenoid valve, KM4 glue pump relay, SB3 manual mode main switch, KT power-off delay relay, X glue gun rated operation. Detailed Implementation

[0028] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of the present invention.

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0030] The following will refer to the appendix. Figures 1 to 4 The present invention will be described in detail with reference to exemplary embodiments.

[0031] Example 1

[0032] An electronic adhesive spraying self-cleaning control device includes a first fuse FU1, a second fuse FU2, a water pump relay KM1, a sewage pump relay KM2, a first contactor FR1, a second contactor FR2, a cleaning water pump M1, and a sewage pump M2, wherein:

[0033] Both the first fuse FU1 and the second fuse FU2 are equipped with a live wire terminal, a neutral wire terminal, and a ground wire terminal, which are connected to the live wire, neutral wire, and ground wire respectively.

[0034] Both the first contactor FR1 and the second contactor FR2 include a coil control terminal, a normally open contact, and a normally closed contact;

[0035] The normally open contact of the water pump relay KM1, the normally closed contact of the sewage pump relay KM2, and the first contactor FR1 are connected in series; the normally closed contact of the water pump relay KM1, the normally open contact of the sewage pump relay KM2, and the second contactor FR2 are connected in series; the first contactor FR1 is connected to the forward control terminal of the cleaning water pump M1, and the second contactor FR2 is connected to the reverse control terminal of the sewage pump M2.

[0036] This invention adds three two-position three-way normally closed solenoid valves to the glue inlet of the original spray gun body, which are connected to pipes one, two, three, four, and five respectively. The two-position three-way solenoid valves are one inlet and one outlet normally closed. When stopping the machine, open the upper protective cover, turn on the cleaning mode, turn off the manual mode, energize the solenoid valve coil, close the glue interface, open the cleaning tap water interface, turn on the sewage suction pump, turn on the cleaning button, install and operate the independent cleaning tap water pump, and at the same time, the glue gun body operates to perform rated glue pressure spray water rinsing. The rinsing takes about five minutes. There is a liquid level detection in the water box below the spray head. When the clean water exceeds the water level, the sewage pump increases the suction flow. After cleaning, turn off the cleaning button and the cleaning mode button in sequence, and refill the water box to soak the spray head.

[0037] Specifically, in this invention, the internal structure of the normally closed two-position three-way solenoid valve is as follows: Figure 1 As shown.

[0038] Normally closed type (DK2 / 3) - When the solenoid valve coil is energized, port 2 is open to port 1, and port 3 is closed; when the solenoid valve coil is de-energized, port 2 is closed, and port 1 is open to port 3; II. Two-position three-way solenoid valve technical selection:

[0039] Model specifications: DN1~DN200

[0040] Applicable pressure: 0~10MPa

[0041] Applicable media: gas, water, oil, steam, refrigerant, corrosive fluids

[0042] Medium temperature: -200~+500℃

[0043] Protection performance: 1P65

[0044] Explosion-proof marking: ExdIICT5 (explosion-proof model number contains the letter F)

[0045] Valve materials: cast steel, 304 / 316 stainless steel, PVC, PP, PTFE, brass. Power supply voltage: DC 12~220VAC 24~380V

[0046] Connection methods: internal thread, external thread, flange, welding

[0047] Control methods: One input, two outputs (DK2 / 31), two inputs, one output (DK2 / 32),

[0048] One inlet, one outlet (DK2 / 3 normally closed, DK2 / 3K normally open)

[0049] Example 2

[0050] A self-cleaning control method for electronic adhesive spraying includes the following steps:

[0051] S1. After turning on the cleaning mode composite button SB1, the normally closed switch is opened, and the manual mode main circuit SB3 is disconnected.

[0052] S2, when the power-off delay relay KT is de-energized, the cleaning button SB2 needs to be activated within the specified time to clean the water pump protection device;

[0053] S3, the glue pump relay KM4 is de-energized, stopping glue supply;

[0054] S4. Sewage pump relay KM2 is energized, two-position three-way solenoid valve KM3 is energized, KM2 and KM3 are interlocked, sewage pump M2 works, glue gun body glue supply interface is closed.

[0055] S5. After the sewage relay KM2 is energized, it closes. If the cleaning button SB2 is pressed within the specified time of the power-off delay relay KT, the cleaning water pump M1 will work and lock itself. The glue gun body will work at its rated power to clean and rinse the glue head.

[0056] S6. After cleaning is complete, press the cleaning mode composite button SB1. The glue pump relay KM4 is powered on, the sewage pump relay KM2 and the normally closed circuit of the two-position three-way relay KM4 are disconnected, the two-position three-way solenoid valve KM3 is de-powered, the circuit is disconnected, the glue inlet 3 of the spray gun body is opened, the tap water inlet 2 is closed, the manual mode is restored, and the spray nozzle is soaked in clean water to the water level line.

[0057] S7. After the sewage pump relay KM2 is de-energized, the tap water pump relay KM1 is disconnected, the cleaning button SB2 cannot work, and the cleaning task ends.

[0058] When S8 and SB3 are activated, manual mode is enabled to drain the glue gun, allowing water to drain out until the glue flows smoothly, ready for production.

[0059] In this invention, a water level sensor is connected to the water storage tank below the glue gun, and a flow sensor is connected to the working power of the sewage pump. When the water level reaches the limit, the sewage pump power increases, and vice versa.

[0060] This invention utilizes a rapid water rinsing mode to solve the problems of glue solidification, stringing, and hole blockage in the nozzle caused by prolonged operation or stagnation in high-speed electronic spraying systems. This invention patent is applicable to the self-cleaning of all high-speed electronic spraying systems.

[0061] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An electronic adhesive spraying self-cleaning control device, characterized in that... This includes a first fuse FU1, a second fuse FU2, a water pump relay KM1, a sewage pump relay KM2, a first contactor FR1, a second contactor FR2, a clean water pump M1, and a sewage pump M2, wherein: Both the first fuse FU1 and the second fuse FU2 are equipped with a live wire terminal, a neutral wire terminal, and a ground wire terminal, which are connected to the live wire, neutral wire, and ground wire respectively. Both the first contactor FR1 and the second contactor FR2 include a coil control terminal, a normally open contact, and a normally closed contact; The normally open contact of the water pump relay KM1, the normally closed contact of the sewage pump relay KM2, and the first contactor FR1 are connected in series; the normally closed contact of the water pump relay KM1, the normally open contact of the sewage pump relay KM2, and the second contactor FR2 are connected in series; the first contactor FR1 is connected to the forward control terminal of the cleaning water pump M1, and the second contactor FR2 is connected to the reverse control terminal of the sewage pump M2. And a self-cleaning control method for electronic spray adhesive, including the following steps: S1. After turning on the cleaning mode composite button SB1, the normally closed switch is opened, and the manual mode main circuit SB3 is disconnected. S2, when the power-off delay relay KT is de-energized, the cleaning button SB2 needs to be activated within the specified time to clean the water pump protection device; S3, the glue pump relay KM4 is de-energized, stopping glue supply; S4. Sewage pump relay KM2 is energized, two-position three-way solenoid valve KM3 is energized, KM2 and KM3 are interlocked, sewage pump M2 works, glue gun body glue supply interface is closed. S5. After the sewage pump relay KM2 is energized, it closes. Press the cleaning button SB2 within the specified time of the power-off delay relay KT to start the cleaning water pump M1. At the same time, it self-locks and the glue gun body operates at its rated power to clean and rinse the glue head. S6. After cleaning is complete, press the cleaning mode composite button SB1. The glue pump relay KM4 is powered on, the sewage pump relay KM2 and the normally closed circuit of the two-position three-way relay KM4 are disconnected, the two-position three-way solenoid valve KM3 is de-powered, the circuit is disconnected, the glue inlet 3 of the spray gun body is opened, the tap water inlet 2 is closed, the manual mode is restored, and the spray nozzle is soaked in clean water to the water level line. S7. After the sewage pump relay KM2 is de-energized, the tap water pump relay KM1 is disconnected, the cleaning button SB2 cannot work, and the cleaning task ends. When S8 and SB3 are activated, manual mode is enabled to drain the glue gun, allowing water to drain out until the glue flows smoothly, ready for production.

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