CN207025732U - A kind of automatic glue injection apparatus - Google Patents

Abstract

The utility model provides an automatic glue injection device, comprising: a plurality of glue tanks, a plurality of pumping devices, a moving mechanism, a glue injection head and a working platform; the glue injection head is installed on the movement mechanism; each glue tank passes through a pump The delivery device is communicated with a glue inlet; and at least one glue tank is connected with a vacuum device and an air inlet valve; the vacuum device is configured to be controlled and opened so that the glue tank connected to it is in a negative pressure or vacuum state, so that at least Partially prevent the glue in the glue tank from contacting with water vapor; the inlet valve is configured to be controlled to open, so that the gas outside the glue tank connected to it enters the glue tank, so that the pumping device connected to the glue tank The glue in the glue tank can be extracted. It can prevent the glue in the glue tank from being in contact with water vapor as much as possible, prevent the glue from deteriorating, increase the number of times the glue is used, and increase the service life of the automatic glue injection device.

Description

An automatic glue injection device

technical field

The utility model relates to the technical field of glue injection, in particular to an automatic glue injection device.

Background technique

The automatic glue injection device is an automatic machine that controls the fluid, and drips, coats, and pots the liquid on the surface of the product or inside the product, so that it can achieve the functions of sealing, fixing, and waterproofing. Component glue. It is mainly used for bonding, pouring, coating, sealing and filling of glue, oil and other liquids in the product process. The automatic automatic glue injection device can realize the glue filling of irregular graphics such as points, lines, arcs and circles. For the existing automatic glue injection device, the inventor found that the glue in some glue tanks is easy to deteriorate. Once the glue tank is opened, the glue needs to be used up several times, otherwise the glue can not be used; and the deteriorated glue If the liquid enters the injection system, it will easily cause equipment damage and affect the life of the equipment.

Utility model content

The inventor of the present utility model has found that the glue in some glue tanks is easy to deteriorate because the glue in the glue tank is easy to contact with water vapor, which will cause a chemical reaction and cause deterioration. Therefore, the utility model aims to overcome at least one defect of the existing automatic glue injection device, and provides a novel automatic glue injection device, which can prevent the glue in the glue tank from contacting with water vapor as much as possible, and prevent the glue from deteriorating. , increase the number of times the glue is used, and increase the service life of the automatic glue injection device.

For this reason, the utility model provides an automatic glue injection device, including: a plurality of glue tanks for holding glue liquid, a plurality of pumping devices, a moving mechanism, a glue injection head and a working platform; There are multiple glue inlets and installed on the moving mechanism to move according to the preset trajectory driven by the moving mechanism; each glue tank communicates with a glue inlet through a pumping device, so that each pumping device will The glue in the glue tank is delivered to the glue injection head through a glue inlet hole, so as to inject glue on the objects placed on the working platform; and

At least one glue tank is connected with a vacuum device and an inlet valve; the vacuum device is configured to be opened in a controlled manner so that the glue tank connected to it is under a negative pressure or a vacuum state, thereby at least partially obstructing the glue in the glue tank In contact with water vapor; the intake valve is configured to be opened in a controlled manner, so that the gas outside the glue tank connected to it enters the glue tank, so that the pumping device connected to the glue tank can pump the glue in the glue tank.

Further, there are two glue tanks, and one glue tank is connected with a vacuum device and an air inlet valve.

Further, each glue tank includes a glue bucket and a bung mounted on the opening of the glue bucket;

The glue tank connected with the vacuum device and the air inlet valve is provided with an air inlet valve and a connecting hole for connecting the vacuum device on its bung.

Further, each pumping device has a pump, a motor, and a relay; the motor is configured to drive the pump to rotate, so as to transport the glue in a glue tank to the glue injection head through a glue inlet hole; the relay is configured to automatically determine whether to connect the motor The phase sequence of the motor can be used to cut off the power supply of the motor and give an alarm when the real-time phase sequence of the motor does not match the preset phase sequence, or when the three-phase voltage of the motor is not measured to be greater than the preset value.

Further, a pressure hole is also opened on the glue injection head, and a glue injection channel is defined in the glue injection head; the pressure hole communicates with the upper end of the glue injection channel;

The automatic glue injection device also includes a pressure device, which communicates with the pressure hole and is configured to: open when the glue injection is stopped or a preset time after the glue injection is stopped, so that a negative pressure is formed at the upper end of the glue injection channel; or, Open when the injection head is cleaned, so that the upper end of the injection channel forms a positive pressure.

Further, the glue injection channel includes an upper cavity, a mixing chamber and a glue injection nozzle; the pressure hole communicates with the upper cavity; each glue inlet communicates with the mixing chamber.

Further, it also includes a rotating mechanism, which is installed on the moving mechanism and has an output shaft for rotating; and the glue injection head includes:

A glue injection part, which defines a mixing chamber and a glue injection nozzle;

The stirring device is installed in the mixing chamber to stir the various glues entering the mixing chamber. There is a mounting hole formed on the end surface of the rotating shaft of the stirring device away from the glue injection nozzle to install and drive the stirring device to rotate. an output shaft, and an outwardly extending cylindrical boss is formed on the end surface of the rotating shaft part away from the glue injection nozzle;

The sealing device is installed on the end of the mixing chamber away from the glue injection nozzle, and a through hole for passing the output shaft is opened on it; and an annular groove is formed on the surface of the sealing device facing the mixing chamber, and the annular groove is configured as having a cylindrical boss inserted therein; and

The connection block, its lower end is installed on the side away from the injection nozzle of the sealing device, its upper end is installed on the moving mechanism, and an upper cavity is defined in it, and the upper cavity communicates with the mixing chamber through the communication hole on the sealing device.

Further, a groove is formed on the outer peripheral surface of the cylindrical protrusion, and the groove is in a spiral shape; the inner diameter of the cylindrical protrusion is larger than the diameter of the installation hole, and the inner diameter of the annular groove is larger than the diameter of the installation hole.

Further, the sealing device includes:

a sealing ring with a hole in its center; and

A tube mounted in the hole defines a through hole therein; and the tube and the hole define an annular groove.

Further, the stirring device is a spiral stirring device; the pump is a metering pump.

In the automatic glue injection device of the utility model, since the glue tank that is easy to deteriorate is connected with a vacuuming device and an air intake valve, the vacuuming device can make the glue in the glue tank connected to it not be used, so that the inside of the glue tank is under negative pressure Or a vacuum state, thereby at least partially hindering the glue in the glue tank from contacting with water vapor, preventing the glue from deteriorating as much as possible, increasing the number of times the glue is used and the life of the automatic glue injection device. The air inlet valve can make the glue in the glue tank connected to it open when it is used, so that the gas outside the glue tank connected to it can enter the glue tank, so that the pumping device connected to the glue tank can extract the glue in the glue tank liquid, which can prevent the glue from being used. The vacuum device and the intake valve are cheap and low in cost, which makes the cost of the automatic glue injection device relatively low.

Description of drawings

Hereinafter, some specific embodiments of the present utility model will be described in detail in an exemplary rather than restrictive manner with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic schematic diagram of an automatic glue injection device according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a glue injection head of an automatic glue injection device according to an embodiment of the present invention;

Fig. 3 is a schematic partial cross-sectional view of a glue injection head of an automatic glue injection device according to an embodiment of the present invention.

detailed description

According to the following detailed description of specific embodiments of the utility model in conjunction with the accompanying drawings, those skilled in the art will be more aware of the above and other objectives, advantages and features of the utility model.

Fig. 1 is a schematic schematic diagram of an automatic glue injection device according to an embodiment of the present invention. As shown in FIG. 1 , the automatic glue injection device may include a plurality of glue tanks 200, a plurality of pumping devices 500, a glue injection head 100, a moving mechanism 300, a working platform 400 and a control device. Each glue tank 200 is used to hold glue liquid. The glue injection head 100 is installed on the moving mechanism 300 to move according to a preset trajectory driven by the movement mechanism 300 . The glue injection head 100 is provided with a plurality of glue inlet holes 51 , and a glue injection channel is defined in the glue injection head 100 . Each glue tank 200 can communicate with a glue inlet 51 via a pumping device 500, so that each pumping device 500 can deliver the glue in a glue tank 200 to the glue injection head 100 through a glue inlet 51 , so as to inject glue on the object placed on the working platform 400 .

Further, at least one glue tank 200 is connected with a vacuum device 210 and an intake valve 220; the vacuum device 210 is configured to be opened in a controlled manner so that the glue tank connected to it is in a negative pressure or vacuum state (preferably an absolute vacuum) , so as to at least partially hinder the glue in the glue tank from contacting with water vapor; the air inlet valve 220 is configured to be opened in a controlled manner, so that the gas outside the glue tank connected with it enters the glue tank, so that it is connected with the glue tank The pumping device can extract the glue in the glue tank.

In the automatic glue injection device of the present utility model, since the glue tank that is easy to deteriorate is connected with a vacuum device 210 and an air intake valve 220, the vacuum device 210 can make the glue in the glue tank connected to it not be used, at least make the glue tank Negative pressure or vacuum state inside, or further make the glue tank system (including the glue tank, the pumping device connected with the glue tank, and the pipeline connected to the corresponding glue inlet) be in a negative pressure or vacuum state, Thereby at least partly hinder the contact of the glue in the glue tank with water vapor, prevent the deterioration of the glue as much as possible, improve the number of times of glue use and the life of the whole machine of the automatic glue injection device. The air intake valve 220 can make the glue in the glue tank connected to it open when it is used, so that the gas outside the glue tank connected to it can enter the glue tank, so that the pumping device connected to the glue tank can extract the glue in the glue tank. Glue, which prevents the glue from not being able to be used. The vacuum device 210 and the air intake valve 220 are cheap and low in cost, which makes the cost of the automatic glue injection device relatively low.

In some embodiments of the present invention, there are two glue tanks 200 , and one glue tank is connected with a vacuum device 210 and an air inlet valve 220 . Preferably, each glue tank includes a glue barrel and a barrel cover installed at the opening of the glue barrel. The glue tank connected with the vacuum device 210 and the air inlet valve 220 is provided with an air inlet valve 220 and a connecting hole for connecting the vacuum device 210 on its lid. That is to say, the vacuum device 210 is connected to the connection hole of the lid of the rubber barrel, and the air intake valve 220 is installed on the lid of the glue barrel. The vacuum device 210 may be a pneumatic vacuum generator.

In some embodiments of the invention, each pumping device 500 has a pump 510 , a motor 520 and a relay 530 . The motor 520 is configured to drive the pump 510 to rotate, so as to transport the glue in a glue tank 200 to the glue injection head 100 through a glue inlet 51 to inject glue to the object 800 placed on the working platform 400 . The relay 530 is configured to automatically judge the phase sequence of the connected motor 520, so as to shut off the power supply of the motor and perform Call the police. Preferably, the preset value of the unbalanced three-phase voltage can be set at 30% to 50%.

The reason for this design, and the reason why the inventor found that the glue is easy to flow back during the glue injection process or that the amount of glue is not enough at some positions of the processed product is that the inventor believes that the power supply voltage of the automatic glue injection device may be in the process of glue injection. Unstable, high and low power supply voltage affects the movement of the motor 520, thereby affecting the speed of the glue supply, resulting in extremely unstable flow rate and flow of the glue supply, and even backflow. Since each pumping device 500 has a relay 530 in this automatic glue injection device, it can cause the motion of the motor to be unstable when the voltage received by the motor 520 is unstable, which may cause the glue to flow backward or the flow rate of the glue to be unstable. When the required amount of glue is not enough, the power of the motor 520 is quickly turned off and an alarm is issued; then the control device controls the entire automatic glue injection device to stop working, thereby preventing the glue from flowing back during the working process of the glue injection device and ensuring that the workpiece Processing quality.

Further, in the embodiment of the present utility model, as shown in FIG. 2 , a pressure hole 52 is opened on the glue injection head 100 , which communicates with the upper end of the glue injection channel. The automatic glue injection device in this utility model embodiment also includes a pressure device 600 communicating with the pressure hole 52 . The pressure device 600 can be configured to open under the control of the control device when the glue injection is stopped or a preset time after the glue injection is stopped, so that the upper end of the glue injection channel forms a negative pressure, so that under the action of the external atmospheric pressure, it can Overcoming the inertia of the glue and its own gravity, the glue is located in the glue injection channel, thereby preventing the glue from dripping.

In some embodiments of the present utility model, the glue tank 200, the pumping device 500 and the glue inlet 51 are multiple; The glue injection device is used in the technical field of mixing glue injection. The pressure hole 52 communicates with the upper cavity 53 . Each glue inlet 51 communicates with the mixing chamber 21 . Specifically, in some embodiments, there are two glue tanks 200, pumping devices 500, and glue inlets 51, making the automatic glue injection device especially suitable for the field of A/B polyurethane glue mixing and injection.

In this embodiment, the glue injection head 100 is also provided with a cleaning channel communicating with the glue injection channel to clean the glue injection channel. In the process of research, the inventor also found that because the glue injection channel needs to be repeatedly cleaned with high-pressure air and cleaning agent during the glue injection process, a large amount of glue will break through the skeleton seal and enter the upper part of the glue injection head 100. The cavity 53 thus causes a series of problems. The reason for this phenomenon is that because the space in the mixing chamber 21 is relatively narrow, the gas-liquid mixture and the residual glue will scatter around after being mixed, so that a large amount of glue will break through the skeleton seal and enter the upper space of the glue injection head 100. Cavity 53, causing damage to the parts of the glue injection machine. The inventor passed air into the pressure hole 52 to form a positive pressure in the upper cavity 53, and then used high-pressure air to clean the cleaning agent again, and found that all the materials could only be sprayed from the injection nozzle of the injection channel. , it can ensure that the mixed glue will not reverse to the upper cavity 53. By designing the pressure hole 52 on the glue injection head 100, it can not only prevent the glue from dripping when the glue injection is stopped, but also help to clean the glue injection head 100, so that the utility model produces unexpected technical effects .

In some embodiments of the present invention, the automatic glue injection device may further include a rotating mechanism, which is installed on the moving mechanism 300 and has an output shaft for rotating. Moreover, the glue injection head 100 includes a glue injection part 20 , a stirring device 30 , a sealing device 40 and a connecting block 50 . A mixing cavity 21 and a glue injection nozzle are defined in the glue injection part 20 . The stirring device 30 can be a spiral stirring device 30 installed in the mixing chamber 21 to stir various glues entering the mixing chamber 21 .

In particular, as shown in Figure 3, a mounting hole 31 is formed on the end surface of the shaft part of the stirring device 30 away from the glue injection nozzle to install the output shaft that drives the stirring device 30 to rotate, and the shaft part is far away from the glue nozzle. A cylindrical protruding post 32 extending outward is also formed on the end surface of one end.

The sealing device 40 is installed on the end of the mixing chamber 21 away from the glue injection nozzle, and a through hole for passing the output shaft is opened on it; and an annular groove 41 is formed on the surface of the sealing device 40 facing the mixing chamber 21. The groove 41 is configured such that the cylindrical boss 32 is inserted therein. The cylindrical post 32 is inserted into the annular groove 41 to form an approximately "S"-shaped double-bend structure, which significantly increases the path of the glue liquid entering the through hole, and also significantly increases the resistance of the glue liquid entering the through hole. Further, the sealing device 40 may further include an oil seal part disposed in the through hole to further improve the sealing performance.

The lower end of the connection block 50 is installed on the side of the sealing device 40 away from the injection nozzle, the upper end is installed on the moving mechanism 300, and an upper cavity 53 is defined therein, and the upper cavity 53 is connected to the mixing hole through the communication hole on the sealing device 40. The cavity 21 communicates. A plurality of glue inlet holes 51 and pressure holes 52 can be provided on the connecting block 50 , and each glue inlet hole 51 communicates with the mixing chamber 21 on the glue injection part 20 through a glue inlet channel. Each glue inlet 51 is used for installing a glue delivery pipe connected to the pumping device 500 . Preferably, there are two glue inlet channels and glue inlet holes 51 , so that the two glues can be mixed in the glue injection part 20 . Two glue inlets 51 can be arranged on two opposite sides of the connecting block 50 (only the glue inlet 51 on one side is shown in the figure).

In some embodiments of the present invention, grooves are formed on the outer peripheral surface of the cylindrical protrusion 32 . The groove can extend obliquely along the axial direction of the rotating shaft, so that the groove is helical. Further, the inner diameter of the cylindrical post 32 is larger than the diameter of the installation hole 31 , and the inner diameter of the annular groove 41 is larger than the diameter of the installation hole 31 , so as to further increase the length of the sealing path.

In some preferred embodiments of the present invention, the sealing device 40 includes a sealing ring 42 and a tube 43 . A hole is opened at a central position of the sealing ring 42 . The sealing ring 42 can be made of rubber material. The tube 43 is a copper tube installed in the hole and defines a through hole therein; and the tube 43 and the hole define an annular groove 41 .

In some embodiments of the present invention, the automatic glue injection device further includes a plurality of filters 700 installed on the pipeline between each pumping device 500 and the glue tank 200 connected to the pumping device 500 . The pump 510 in the pumping device 500 is a metering pump, which can control the amount of various glues entering the glue injection channel.

So far, those skilled in the art should recognize that although a number of exemplary embodiments of the present invention have been shown and described in detail herein, they can still be used according to the present invention without departing from the spirit and scope of the present invention. Many other variations or modifications that conform to the principles of the utility model are directly determined or derived from the disclosed content of the new model. Therefore, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. A kind of 1. automatic glue injection apparatus, it is characterised in that including：For holding the multiple glue tanks, multiple pumping installations, shifting of glue Motivation structure, glue injecting head and workbench；Multiple glue feeding openings are offered on the glue injecting head and are installed on the travel mechanism, with Moved under the drive of the travel mechanism according to desired guiding trajectory；

   Each glue tank connects via a pumping installations with a glue feeding opening, so that each pumping installations Glue in one glue tank is delivered to the glue injecting head via a glue feeding opening, so as to being positioned over the work Object on platform carries out injecting glue；And

   At least one glue tank is connected with vacuum extractor and intake valve；The vacuum extractor be configured to controllably to open with Make be in negative pressure or vacuum state in the coupled glue tank, so as to hinder at least in part glue in the glue tank and Vapor contacts；The intake valve is configured to controllably open, so that the gas outside the coupled glue tank enters the institute Glue tank is stated, so that the glue in the glue tank can be extracted with the pumping installations that the glue tank is connected.
2. 2. automatic glue injection apparatus according to claim 1, it is characterised in that the glue tank is two, a glue tank It is connected with the vacuum extractor and the intake valve.
3. 3. automatic glue injection apparatus according to claim 1, it is characterised in that each glue tank includes glue bucket and is installed on The bung of the opening of the glue bucket；The glue tank of the vacuum extractor and the intake valve is connected with its bung On be provided with the intake valve and the connecting hole for connecting the vacuum extractor.
4. 4. automatic glue injection apparatus according to claim 1, it is characterised in that each pumping installations has pump, motor And relay；The motor is configured to drive the pump to rotate, and the glue in a glue tank is entered via described in one Glue hole is delivered to the glue injecting head；The relay configuration accesses the phase sequence of the motor into automatic discrimination, with the motor Real-time phase sequence be not inconsistent with default phase sequence, or the three-phase voltage of the motor is not weighed the motor is turned off during more than preset value Power supply is simultaneously alarmed.
5. 5. automatic glue injection apparatus according to claim 1, it is characterised in that pressure port is further opened with the glue injecting head, And define glue injection channel in the glue injecting head；The pressure port connects the upper end of the glue injection channel；

   The automatic glue injection apparatus also includes pressure apparatus, and it connects with the pressure port, is configured to：When stopping injecting glue or stop Only opened during the latter preset time of injecting glue, so that the upper end of the glue injection channel forms negative pressure；Or, cleaned to the glue injecting head Shi Kaiqi, so that the upper end of the glue injection channel forms malleation.
6. 6. automatic glue injection apparatus according to claim 5, it is characterised in that the glue injection channel includes upper cavity, mixed Close chamber and adhesive pouring nozzle；The pressure port connects with the upper cavity；Each glue feeding opening connects with the hybrid chamber.
7. 7. automatic glue injection apparatus according to claim 6, it is characterised in that also include：

   Rotating mechanism, the travel mechanism is installed on, and with the output shaft being rotated；And the glue injecting head bag Include：

   Glue injection part, the hybrid chamber and the adhesive pouring nozzle are defined in it；

   Agitating device, it is installed in the hybrid chamber, it is described to stir to be stirred to entering a variety of glues in the hybrid chamber Mix on the end face of one end of the remote adhesive pouring nozzle of the shaft of device formed with mounting hole, drive the stirring to fill with installation The output shaft of rotation is put, and is also formed with stretching out on the end face of one end of the remote adhesive pouring nozzle of the shaft Tubular projection；

   Sealing device, one end of the remote adhesive pouring nozzle of the hybrid chamber is installed on, offered thereon for by described defeated The through hole of shaft；And formed with annular recess, the annular recess on the surface of the direction hybrid chamber of the sealing device It is configured to the tubular projection is inserted in it；And

   Contiguous block, its lower end are installed on the side of the remote adhesive pouring nozzle of the sealing device, and its upper end is installed on the shifting Motivation structure, and the upper cavity is defined in it, the upper cavity via the intercommunicating pore on the sealing device with it is described Hybrid chamber connects.
8. 8. automatic glue injection apparatus according to claim 7, it is characterised in that on the outer peripheral face of the tubular projection formed with Groove, the groove is in the shape of a spiral；The interior diameter of the tubular projection is more than the diameter of the mounting hole, and the annular recess Interior diameter be more than the mounting hole diameter.
9. 9. automatic glue injection apparatus according to claim 8, it is characterised in that the sealing device includes：

   Sealing ring, its central position open up hole；With

   Pipe, is installed in described hole, limits the through hole in it；And to limit the ring-type recessed for the pipe and described hole Groove.
10. 10. automatic glue injection apparatus according to claim 9, it is characterised in that the agitating device fills for screw mixing Put；The pump is measuring pump.