KR20090070634A - Fixed quantity & accurate per time dispenser for high viscosity adhesive - Google Patents

Abstract

A quantitative discharger of a high viscosity adhesive is provided to improve abrasion resistance, to increase lifetime and to obtain the optimum performance. A quantitative discharger of a high viscosity adhesive comprises a plurality of reservoirs(11,21) which store a plurality of fluids; a plurality of gear pumps(13,23) which are connected to the plurality of reservoirs and pumps the plurality of fluids stored in the plurality of reservoirs by a constant amount; and a mixing discharge part(30) which mixes the plurality of fluids to form a high viscosity adhesive and discharges it.

Description

High-viscosity adhesive dispenser {FIXED QUANTITY & ACCURATE PER TIME DISPENSER FOR HIGH VISCOSITY ADHESIVE}

The present invention relates to an ejector for dispensing a high viscosity adhesive mixed with a plurality of fluids, and more particularly, to discharge a high viscosity adhesive in a precise discharge range, which can be controlled to discharge a certain amount per hour It is about the flag.

In general, the dispenser of a high viscosity adhesive discharges a mixture of two or more fluids in a quantitative manner, and precisely and quantitatively causes the error range of the discharge amount to continuously be less than a predetermined probability (for example, 1%) relative to the discharge amount. The controllable ejector can eject a high viscosity adhesive with excellent wear resistance, long life and optimal performance.

1 is a cross-sectional view of a mixing and metering dispenser of a two-component high viscosity resin according to the prior art.

The two-component high viscosity resin ejector according to the prior art includes a main body having a plurality of resin chambers 1 and 1 'to which different kinds of resins are respectively supplied; A pressurizing cylinder (3) installed above the main body to pressurize the resin supplied to the respective resin chambers; A mixer (not shown) disposed below the main body to mix different kinds of resins introduced by the operation of the pressure cylinder; It is connected to the mixer consists of a discharge portion 5 for receiving and discharging the adhesive mixed in the mixer.

Specifically, the two-component high viscosity resin ejector according to the prior art, as shown in FIG. 1, stores different resins in the respective resin chambers 1 and 1 ′. Since a plurality of resins are mixed to form a high viscosity adhesive, each of the plurality of resins is separated and stored until adhesion is required. At this time, the high viscosity resin discharged may be a two-part type, in which case the resin may be a main and a curing agent, respectively. In such adhesives the hardener portion may have self-curing properties that react with moisture in the air and may have a very large viscosity range. When mixed with the curing agent in advance, since the high viscosity adhesive may be cured and may prevent the discharge of the high viscosity adhesive, it is common for a plurality of resins to be mixed only when the adhesive operation is performed using the high viscosity adhesive.

Therefore, the plurality of resins are stored in the plurality of resin chambers 1 and 1 ', respectively, and are pressurized downward by the pressure cylinder 3 to be supplied to the mixer, mixed and discharged from the discharge part 5 again. . Therefore, the pressurized cylinder uses a method of pushing and mixing the resin in the resin chambers 1 and 1 'through the pressurized cylinder 3. Conventionally, a method of suctioning through a pump in a ram method has been used. However, the conventional technique is used after supplying a predetermined amount into the resin chambers 1 and 1 ', and therefore, it is not suitable for the purpose of continuously discharging a large amount.

In addition, in the case of the ejector according to the prior art, it was possible to precisely control the quantification of the resin forming the high-viscosity adhesive discharged by using the inverter control or by supplying the resin by the cylinder. However, although it is possible to precisely control the quantification of the resins constituting the high viscosity adhesive as a whole, there is a problem that the resin constituting the high viscosity adhesive per hour cannot continuously maintain a constant discharge range.

The present invention was created to solve the above problems, and an object of the present invention is to discharge a high-viscosity adhesive for dispensing a high-viscosity adhesive in which a plurality of fluids are mixed. It is to provide a metered dispenser of high viscosity adhesive that can be achieved.

The fixed-quantity dispenser of the high viscosity adhesive for discharging a high viscosity adhesive mixed with a plurality of fluids according to the present invention is connected to a plurality of storage containers for storing a plurality of fluids, respectively, and stored in a plurality of storage containers. It may include a plurality of gear pump for pumping a plurality of fluids each of a plurality of fluids, and a mixed discharge unit for mixing the plurality of fluids to form a high viscosity adhesive to be discharged.

Here, the plurality of gear pumps may be driven by a plurality of servo motors, respectively. Since the plurality of gear pumps pump the plurality of fluids by rotating the motor, the gears are rotated, so that the precise rotation of the motor will determine how precisely and quantitatively the gear pump is pumped. Therefore, the use of a precisely rotating servomotor is desirable.

In addition, the plurality of gear pump may further include a plurality of flow rate measuring device for measuring the amount of pumping. Only by measuring the amount of gear pumps actually pumping a plurality of fluids is it possible to know the quantity and quality of the high viscosity adhesive actually ejected. Therefore, it is preferable to confirm whether the actual metering discharge is performed by using a flow rate meter in the metering machine for the high viscosity adhesive.

The apparatus may further include a control device for controlling the plurality of gear pumps to quantitatively discharge the mixed discharge part. The control device may not only confirm whether the high viscosity adhesive is discharged quantitatively, but may be controlled to actively implement the quantitative discharge.

The apparatus may further include a plurality of liquid remaining amount measuring devices for measuring the remaining amount of the plurality of fluids in the plurality of storage containers, respectively. The liquid remaining amount measuring device is preferable because it can be predicted before the exhaustion of a plurality of fluids for a long period of time and if a large amount of work is required to prevent interruption of the work.

Quantitative ejector of a high viscosity adhesive for discharging a high viscosity adhesive mixed with a plurality of fluids according to the present invention by pumping a plurality of fluids each using a plurality of gear pump to continuously mix and discharge a high viscosity adhesive consisting of a predetermined amount per hour There is an effect that continuous discharge is performed within the correct discharge range.

This quantitative dispensing can be applied to places that require a large amount of work, and can be used for a long time in combination with automatic construction equipment, and it is possible to discharge high-viscosity adhesives with excellent wear resistance, long life, and optimal performance. It is effective.

Hereinafter, with reference to the accompanying drawings will be described in detail with respect to the high-viscosity adhesive dispenser for discharging a high viscosity adhesive agent mixed with a plurality of fluids according to the present invention. The following specific examples are merely illustrative of the quantitative ejector of a high viscosity adhesive for ejecting a high viscosity adhesive mixed with a plurality of fluids according to the present invention, and are not intended to limit the scope of the present invention. In particular, in the following description, a quantitative ejector of a two-part high viscosity adhesive mainly in which two fluids are mixed among the quantitative ejectors of a high viscosity adhesive for ejecting a high viscosity adhesive mixed with a plurality of fluids is described. It is not intended that the range be limited for the metered dispenser of a high viscosity adhesive mixed with only two fluids, and that a metered dispenser of a high viscosity adhesive mixed with two or more fluids is intended to be included within the scope of the present invention.

2 is a partial schematic view of a metered dispenser of a high viscosity adhesive for ejecting a high viscosity adhesive body in which a plurality of fluids are mixed according to the present invention. As shown, the fixed-quantity ejector of the high viscosity adhesive for ejecting a high viscosity adhesive mixed with a plurality of fluids according to the present invention includes a plurality of storage containers 11 and 21 for storing a plurality of fluids, and a plurality of storage containers ( 11 and 21, respectively, a plurality of gear pumps 13 and 23 connected to each of the plurality of fluids stored in the plurality of storage containers 11 and 21 and pumping a predetermined amount, and a plurality of fluids are mixed to form a high viscosity adhesive It consists of a configuration including a mixed discharge portion 30 to be discharged.

A high viscosity adhesive in which a plurality of fluids are mixed is a high viscosity adhesive having a large viscosity range formed by mixing two or more fluids. The high viscosity adhesive is a special adhesive, which may be a self-curing adhesive (for example, PU glue) in which the curing agent portion reacts with moisture in the air to cure. Thus, the components used in the metered dispenser of high viscosity adhesives are preferably such that a plurality of fluids can be blocked from contact with the outside. In addition, the high viscosity adhesive may be a material that must maintain accurate ejection.

The plurality of fluids constituting the high viscosity adhesive are stored in the storage containers 11 and 21. At this time, the plurality of stored fluids may be stored to minimize contact with the outside due to the special properties of the high viscosity adhesive. For example, since the hardener in the plurality of fluids can be easily cured by contact with the outside, the contact with the outside is required to be blocked. Accordingly, such a plurality of fluids are transferred from the fluid supply to the reservoirs 11 and 21 in such a manner that the pump pushes them using air pressure. Storage containers (11, 21) may be in the form of a tank or can be changed in addition to the cylinder or ram method.

The plurality of gear pumps 13 and 23 are devices in which gears rotate to pump fluid by rotation of a motor, thereby enabling accurate and accurate discharge. The plurality of gear pumps 13 and 23 receive a plurality of fluids from the plurality of storage containers 11 and 21, respectively, and discharge a certain amount of time accurately and precisely. Therefore, the high-viscosity adhesive discharged and mixed by the plurality of gear pumps 13 and 23 is not only continuously discharged per hour, but also the quantity of the plurality of fluids constituting the high-viscosity adhesive can be continuously pumped within an accurate range. will be.

The plurality of gear pumps 13 and 23 may be driven by the plurality of servomotors 15 and 25, respectively. The servomotors 15 and 25 are automatic control motors by feedback control. Sensors for detecting position and speed are attached to the shaft ends of the servomotors 15 and 25 or the moving parts of the driven mechanism. By comparing the signal of the sensor with the command value, the target values such as position, speed, azimuth and attitude are corrected to control the servomotors 15 and 25. The servo motors 15 and 25 are capable of forward rotation and reverse rotation, smooth operation at low speed, and rapid acceleration and deceleration. Therefore, when the plurality of gear pumps 13 and 23 are operated by the plurality of servomotors 15 and 25, respectively, the respective gear pumps 13 and 23 achieve more precise and accurate discharge.

In the present invention, a plurality of flow rate measuring devices 17 and 27 may be included to measure an amount of pumping of the plurality of gear pumps 13 and 23. The plurality of flow rate measuring devices 17 and 27 respectively measure the amount of pumping by the plurality of gear pumps 13 and 23 as well as the amount of pumping per hour so that the gear pumps 13 and 23 pump the plurality of fluids accurately. You can check if it is. It is common to measure the pumping amount by the plurality of flow rate measuring devices 17 and 27 physically, and the pumping amount thus measured indicates the amount actually pumped by the gear pumps 13 and 23.

The plurality of fluids pumped by the plurality of gear pumps 13 and 23 are transferred to the mixed discharge part 30. In the mixed discharge part 30, a plurality of fluids precisely pumped in a fixed amount are mixed to form and discharge a high viscosity adhesive. At this time, since a plurality of fluids are pumped by the gear pumps 13 and 23 in a quantitative time, the high viscosity adhesive formed is discharged in a quantitative time, and each of the plurality of fluids constituting the high viscosity adhesive is also mixed in a quantitative time. Since a high viscosity adhesive is formed when a plurality of fluids are mixed, the mixed discharge part 30 may be preferably discharged soon after the high viscosity adhesive is formed, and the mixing of the plurality of fluids is preferably performed immediately before discharging the mixture.

In addition, the present invention may include a control device for controlling the plurality of gear pumps (13, 23) to be precisely and quantitatively discharged from the mixed discharge unit (30). The control device can precisely control the plurality of servomotors 15, 25 for driving the plurality of gear pumps 13, 23 to control the plurality of gear pumps 13, 23. In this case, the gear pumps 13 and 23 are controlled by controlling the values of the plurality of servomotors 15 and 25, and stable operation can be guaranteed by feedback control through comparison with values of the flow rate measuring instruments 17 and 27. And the error of the pumping amount can be reduced.

Further, a liquid remaining amount measuring device (not shown) for measuring the remaining amount of each of the plurality of storage containers 11 and 21 may be further included. By measuring the remaining amounts of the plurality of storage containers 11 and 21, respectively, it is possible to determine a plurality of fluids that may be insufficient in the case of continuous discharge for a long time, so that the plurality of fluids can be filled before the plurality of fluids are insufficient. Can prevent the interruption. Although the remaining amount of liquid may be measured directly, the remaining amount may be displayed by calculating the amount of discharged using the flow rate measuring devices 17 and 27.

In the above, the quantitative ejector of the high viscosity adhesive for dispensing a high viscosity adhesive body in which a plurality of fluids are mixed is mainly described for the quantitative ejector for the high viscosity adhesive discharging a high viscosity adhesive in which two fluids are mixed. Naturally, the present invention can be applied to a fixed-quantity dispenser of a high viscosity adhesive that discharges a mixed high viscosity adhesive.

1 is a cross-sectional view of a mixing and metering dispenser of a two-component high viscosity resin according to the prior art.

2 is a partial schematic view of a metered dispenser of a high viscosity adhesive for ejecting a high viscosity adhesive body in which a plurality of fluids are mixed according to the present invention.

Explanation of symbols for main parts of the drawings

1, 1 ': resin chamber 15, 25: servomotor

3: pressure cylinder 17, 27: flow rate meter

5: discharge part 30: mixed discharge part

11, 21: storage container 40: control device

13, 23: gear pump

Claims (5)

In the fixed-viscosity dispenser of a high viscosity adhesive for discharging a high viscosity adhesive mixed with a plurality of fluids, A plurality of storage containers each storing the plurality of fluids; A plurality of gear pumps respectively connected to the plurality of storage containers to pump a predetermined amount of the plurality of fluids stored in the plurality of storage containers; A plurality of fluids are mixed to form a high-viscosity adhesive to include a discharge for discharging Dispenser of high viscosity adhesive. The method of claim 1, The plurality of gear pumps are each driven by a plurality of servo motors Dispenser of high viscosity adhesive. The method of claim 1, Further comprising a plurality of flow rate meter for measuring the amount of pumping the plurality of gear pumps Dispenser of high viscosity adhesive. The method of claim 1, Further comprising a control device for controlling the plurality of gear pump to be precisely and quantitatively discharged from the mixed discharge portion Precision and metered dispenser of high viscosity adhesive. The method of claim 1, A plurality of liquid remaining amount measuring device for measuring each of the remaining amount of the plurality of fluid in the plurality of storage containers further comprising: Dispenser of high viscosity adhesive.

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