CN108405277A - A kind of intelligence Full automatic feed and vacuum defoamation two-component glue pouring machine - Google Patents

Abstract

The invention discloses an intelligent full-automatic feeding and vacuum defoaming two-component glue filling machine, comprising a vacuum tank, a material storage box for temporarily storing glue, and a glue used for detecting the inside of the vacuum tank and the material storage box The liquid level sensor part of the liquid level, the pipe connection part used to connect the vacuum tank and the storage box, the valve part used to control whether the pipe connection part is unblocked, and the PLC controller used to control the operation of the valve part, the valve part The controlled end is connected to the output end of the PLC controller. The working process of the present invention includes initial state, glue feeding state, vacuum degassing state, vacuum tank air feeding state, material discharging state and returning to feeding state several stages. Through the arrangement of the vacuum tank, material storage box, liquid level sensor, pipeline connection, valve and PLC controller, the present invention can intelligently realize the automatic feeding function.

Description

An intelligent automatic feeding and vacuum defoaming two-component glue filling machine

technical field

The invention relates to the technical field of two-component glue filling machines, in particular to an intelligent automatic feeding and vacuum defoaming two-component glue filling machine.

Background technique

Due to the current domestic various glues due to various product demands, glue manufacturers need to add various fillers to the glue, such as: quartz powder, silicon micropowder, lead powder, aluminum powder, etc. These fillers have a negative impact on the service life of the glue filling machine. big impact.

The traditional glue filling machine is to pump the two glues of A and B into a vacuum state, remove the air bubbles, and then mix the glue that has been sucked out of the air according to the proportion, and then pot the mixed glue on the electronic circuit board for waterproofing. However, the operation is cumbersome and prone to problems. A process needs to operate the valve at least 50 times, and the operation sequence must not be wrong, otherwise problems will occur, and the requirements for personnel operations are very high. What's more serious is that due to the wrong operation of the valve, it will cause the pipe of the machine to burst, resulting in the loss of glue.

At present, there are basically two types of domestic glue filling machines: one is purely pneumatic, most of which are composed of air compressors, pressure barrels, conveying pipelines, pneumatic control valves, and static mixing controllers, which can only be used for glue filling. For glue-filling products that do not require high precision and glue-filling errors. The other is a pneumatic and electric hybrid glue filling machine. Four pneumatic valves are needed to control the double plunger pump to complete the one-way delivery of glue. The reason is that sometimes there will be a short-term intermittent phenomenon in the pumping of the glue, which will cause the product to be scrapped. In addition, the current domestic glue filling machine is too heavy due to the cumbersome mechanism, and the glue mixing valve is fixed, which causes great limitations in the glue filling method and the expansion of the glue filling process of the glue filling machine.

Contents of the invention

The technical problem to be solved in the present invention is to provide an intelligent automatic feeding and vacuum degassing two-component glue filling machine to solve the traditional glue filling machine's cumbersome operation, high requirements for personnel operation and the current domestic glue filling machine. The problem of excessive weight caused by the mechanism is cumbersome.

In order to solve the above technical problems, the technical solutions adopted by the present invention are as follows.

An intelligent automatic feeding and vacuum defoaming two-component glue filling machine, including a vacuum tank, a storage box for temporarily storing glue, and a device for detecting the liquid level of the glue inside the vacuum tank and the storage box The liquid level sensor part, the pipe connection part used to connect the vacuum tank and the storage box, the valve part used to control whether the pipe connection part is unblocked, and the PLC controller used to control the operation of the valve part, the controlled end of the valve part Connected to the output of the PLC controller.

To further optimize the technical solution, the pipeline connection part includes a vacuum tank connecting pipe arranged on the vacuum tank for evacuating the inside of the vacuum tank into a vacuum state and sucking in air, and a vacuum tank connecting pipe arranged between the vacuum tank and the storage box for supplying vacuum The tank provides the material storage box connecting pipe for raw materials and the discharge pipe arranged at the bottom of the material storage box for discharging the glue inside the material storage box for use by the metering pump; the vacuum tank connecting pipe includes a The upper branch pipe and the lower branch pipe connected with the muffler, the connecting pipe of the material storage box include a horizontal branch pipe and a vertical branch pipe connected with the raw material barrel.

To further optimize the technical scheme, the valve position includes a vacuum valve arranged on the upper branch of the vacuum tank connecting pipe, an air inlet valve arranged on the lower branch of the vacuum tank connecting pipe, and a feed valve arranged on the horizontal branch of the vacuum tank connecting pipe. The valve and the discharge valve arranged on the vertical branch of the vacuum tank connecting pipe; the controlled ends of the vacuum pumping valve, air inlet valve, feed valve and discharge valve are respectively connected to the output end of the PLC controller.

To further optimize the technical solution, the upper part of the material storage box is provided with a balance air pressure tube connected to the external atmosphere for balancing the internal air pressure of the material storage box.

To further optimize the technical solution, the liquid level sensor part includes a liquid level sensor a arranged in the vacuum tank for detecting the liquid level of the vacuum tank and a liquid level sensor a which is arranged up and down in the material storage box in order to detect the liquid level in the material storage box Sensor b and level sensor c.

Due to the adoption of the above technical solutions, the technological progress achieved by the present invention is as follows.

The invention has simple structure, unique design and strong practicability. The working process of the invention includes initial state, glue feeding state, vacuum degassing state, vacuum tank air feeding state, material discharging state and returning to feeding state. Through the arrangement of the vacuum tank, material storage box, liquid level sensor, pipeline connection, valve and PLC controller, the present invention can intelligently realize the automatic feeding function.

Description of drawings

Fig. 1 is a structural schematic diagram of the present invention.

Among them: Y0, feed valve, Y1, discharge valve, Y2, vacuum valve, Y3, air inlet valve, X0, liquid level sensor a, X2, liquid level sensor b, X3, liquid level sensor c, A, vacuum Tank, B, material storage box, C, vacuum tank connecting pipe, D, material storage box connecting pipe, E, discharge pipe, F, balance air pressure pipe.

Detailed ways

The present invention will be further described in detail below in conjunction with specific embodiments.

An intelligent automatic feeding and vacuum defoaming two-component glue filling machine, as shown in Figure 1, includes a vacuum tank A, a storage box B, a liquid level sensor, a pipe connection, a valve and a PLC controller .

Storage box B is used for temporary storage of glue.

The PLC controller is used to control the operation of the valve part, and the controlled end of the valve part is connected to the output end of the PLC controller.

The pipe connection part is used to connect the vacuum tank A and the storage box B. The pipeline connection part includes a vacuum tank connecting pipe C arranged on the vacuum tank A for evacuating the inside of the vacuum tank A into a vacuum state and sucking in air, and a vacuum tank connecting pipe C arranged between the vacuum tank A and the storage box B for supplying air to the vacuum tank A. The connecting pipe D of the material storage box that provides raw materials and the discharge pipe E that is set at the bottom of the material storage box B to discharge the glue inside the material storage box B for use by the metering pump; the connecting pipe C of the vacuum tank includes the upper branch pipe and the lower pipe Branching pipe, material storage box connecting pipe D includes horizontal branching pipe and vertical branching pipe, the upper branching pipe is connected with the vacuum pump, the lower branching pipe is connected with the muffler, and the horizontal branching pipe is connected with the raw material barrel.

The valve part is used to control whether the pipe connection part is unblocked. The valve parts include the vacuum valve Y2 set on the upper branch of the vacuum tank connecting pipe C, the air inlet valve Y3 set on the lower branch of the vacuum tank connecting pipe C, and the feed valve Y0 set on the horizontal branch of the vacuum tank connecting pipe C And the discharge valve Y1 set on the vertical branch of the vacuum tank connecting pipe C; the controlled ends of the vacuum valve Y2, air inlet valve Y3, feed valve Y0 and discharge valve Y1 are respectively connected to the output end of the PLC controller .

The liquid level sensor is used to detect the liquid level of the glue inside the vacuum tank A and storage box B. The liquid level sensor part includes the liquid level sensor aX0 arranged in the vacuum tank A for detecting the liquid level of the vacuum tank A, and the liquid level sensor bX2 and Liquid level sensor cX3.

In order to make the discharge operation of the material storage box B more smoothly, the present invention installs a balance air pressure pipe F on the upper part of the balance material storage box B, and the balance air pressure pipe F is connected with the external atmosphere for balancing The internal air pressure of the material storage box B makes the internal air pressure of the material storage box B consistent with the external air pressure.

The working principle of the present invention is as follows.

1. Initial state.

At the beginning, the four valves feed valve Y0, discharge valve Y1, vacuum valve Y2 and air inlet valve Y3 are all closed. There is no glue on the vacuum tank A and the storage box B below, the liquid level sensor aX0, liquid level sensor bX2, and liquid level sensor cX3 have not detected the liquid level signal, and will not transmit the signal to the PLC.

2. Enter the glue state.

The feed valve Y0 is opened, and the vacuum valve Y2 is opened. At this time, the vacuum pump starts to work, and the air in the tank is drawn out through the vacuum valve Y2, and the pressure in the tank drops rapidly to form a negative pressure. Since the feed valve Y0 is connected to the raw material barrel through a pipe, the glue inside the raw material barrel is sucked into the inside of the vacuum tank. As the amount of glue inside the vacuum tank gradually increases, when the liquid level reaches the liquid level sensor aX0, the liquid level sensor aX0 detects the signal and transmits the liquid level signal to the PLC. After the PLC receives the signal, it closes the feed valve Y0. At this time, the whole process of feeding is completed.

3. Vacuum degassing state.

After the feed step is complete, all valves remain in their original position. The vacuum pump continues to work, and the air is continuously drawn out from the vacuum valve Y2. As the residual air inside the vacuum tank is drawn out from the vacuum valve Y2, the inside of the tank gradually approaches the vacuum state. At this time, the air contained in the glue gradually expands from the original invisible state to form small bubbles that float to the liquid surface and burst out. As time goes on, more small bubbles become large bubbles and finally burst on the surface of the liquid. As the vacuuming continues, eventually the air bubbles gradually begin to decrease. When the bubbles on the surface of the liquid are almost invisible, the step of vacuuming and degassing is completed. The whole process has been tested and found that as the amount of glue in the tank changes, the vacuuming time also needs to be adjusted accordingly. When no air bubbles are generated on the surface of the glue, the PLC closes the vacuum valve Y2 and the vacuum pump at this time, completing the process of vacuuming and degassing.

4. The vacuum tank is in the air state.

If the vacuum state in the vacuum tank is maintained, the glue cannot be discharged normally. At this time, the PLC will open the air inlet valve Y3, and the air will enter the vacuum tank through the air inlet valve Y3. As the air enters, the air pressure inside the tank gradually becomes the same as that outside the tank.

5. Discharging state.

After the vacuum tank enters the air state, the PLC will detect the state of the liquid level sensor bX2 outside the storage box.

At this time, two situations may occur: one is that there is no glue inside the storage box B, and the liquid level sensor bX2 does not send a signal to the PLC. At this time, the PLC will open the discharge valve Y1, and all the glue will flow into the storage box B through the discharge valve Y1 due to gravity. Another state is that there is already glue inside the material storage box B (this state occurs in normal production, the vacuum tank A has discharged glue to the material storage box, and the material storage box B is supplying glue to the subsequent metering and mixing part), The liquid level sensor bX2 sends a glue signal to the PLC in the storage box. At this time, the PLC will keep all the valves in the original state until the liquid level sensor bX2 does not send out a signal, indicating that the material storage box can accept glue. At this time, the PLC will open the discharge valve Y1 to allow the glue to flow into the storage box through the discharge valve Y1.

6. Return to the feeding state.

After the glue in the vacuum tank is emptied, the PLC will close the discharge valve Y1, the air intake valve Y3, open the feed valve Y0, the vacuum valve Y2 and the vacuum pump, and re-enter the next round of feeding state.

There are two liquid level sensors outside the material storage box B, the upper level sensor bX2 is mainly used in the process control of vacuum degassing; the lower level sensor cX3 is used to detect whether there is glue inside the material storage box, this signal For later use by programs that control the metering and mixing sections.

Claims (5)

1. a kind of intelligence Full automatic feed and vacuum defoamation two-component glue pouring machine, it is characterised in that：Including vacuum tank（A）, use In glue temporarily to be stored to the material-storing box used（B）, for detecting vacuum tank（A）And material-storing box（B）Internal sizes water level height Liquid level sensor position, for by vacuum tank（A）And material-storing box（B）The pipe connection portion position that is attached is used for control pipe The whether unimpeded valve position of road connecting portion and the PLC controller for the operation of control valve position, valve position by Control end is connected to the output end of PLC controller.

2. a kind of intelligent Full automatic feed according to claim 1 and vacuum defoamation two-component glue pouring machine, feature exist In：The pipe connection portion position includes being arranged in vacuum tank（A）On for by vacuum tank（A）Internal vacuum state and suction Into the vacuum tank connecting tube of air（C）, be arranged in vacuum tank（A）With material-storing box（B）Between for vacuum tank（A）Raw material is provided Material-storing box connecting tube（D）And it is arranged in material-storing box（B）Bottom end is used for material-storing box（B）Internal glue is discharged for metering Pump the discharge nozzle used（E）；The vacuum tank connecting tube（C）Include with vacuum pump be connected on be in charge of and connect with silencer It is in charge of under logical, the material-storing box connecting tube（D）Include that the transverse direction being connected with Raw material pail is in charge of and is vertically in charge of.

3. a kind of intelligent Full automatic feed according to claim 2 and vacuum defoamation two-component glue pouring machine, feature exist In：The valve position includes being arranged in vacuum tank connecting tube（C）On the vacuum-pumping valve be in charge of（Y2）, be arranged in vacuum tank Connecting tube（C）Under the air admission valve door be in charge of（Y3）, be arranged in vacuum tank connecting tube（C）The material inlet valve being laterally in charge of （Y0）And it is arranged in vacuum tank connecting tube（C）The vertical discharge valve being in charge of（Y1）；The vacuum-pumping valve（Y2）, into sky Air valve（Y3）, material inlet valve（Y0）And discharge valve（Y1）Controlled end be connected to the output end of PLC controller.

4. a kind of intelligent Full automatic feed according to claim 1 and vacuum defoamation two-component glue pouring machine, feature exist In：The material-storing box（B）Top, which is provided with, to be connected with outside atmosphere for balancing material-storing box（B）The equilibrium air pressure of air pressure inside Pipe（F）.

5. a kind of intelligent Full automatic feed according to any one of claims 1 to 4, and vacuum defoamation two-component encapsulating Machine, it is characterised in that：The liquid level sensor position includes being arranged in vacuum tank（A）It is interior to be used to detect vacuum tank（A）Liquid level Liquid level sensor a（X0）And it is setting up and down in material-storing box successively（B）It is interior to be used to detect material-storing box（B）The level sensing of interior liquid level Device b（X2）With liquid level sensor c（X3）.