JP2002282758A - Dispenser apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely stir a liquid agent, to make the whole apparatus light weight, to reduce the cost and to control the discharge quantity with high precision. SOLUTION: A dispenser apparatus is provided with a syringe 1, an actuator, a piston 3 and a stirring structure, the syringe houses the liquid agent and is provided with a nozzle 1a for discharging the liquid agent in a liquid outlet side, the actuator is for moving the syringe to a prescribed position, the piston is for discharging the liquid agent in the syringe from the nozzle of the syringe, the stirring structure is constituted of one or a plurality of stirrers 4 and 5 each having a structure formed to have a smaller diameter than the inside diameter of the syringe, is housed inside the syringe and stirs the liquid agent discharged from the nozzle of the syringe by the liquid agent discharge structure.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dispenser device configured to pressurize and discharge a liquid material such as a liquid sealing material, an adhesive, a cream solder, and the like. The present invention relates to a dispenser device that handles a liquid material that separates.

[0002]

2. Description of the Related Art With reference to FIG. 5, a dispenser device for handling a separable liquid will be described.

[0003] The syringe 21 has a liquid agent sealed therein. The stirring screw 22 is provided in the syringe 21 and is driven by an electric motor 23. The head cap 24 is attached to an open end of the syringe 21.

In the above configuration, when the stirring screw 22 is driven by the electric motor 23 and pressurized air is supplied to the head cap 24, the liquid filling in the syringe 21 is pressurized and discharged from the nozzle 21a.

[0005]

In the case of the dispenser device shown in FIG. 5, the liquid material is stirred by the stirring mechanism including the stirring screw 22 and the electric motor 23, so that the liquid material can be surely stirred.

However, in this dispenser device, the stirring mechanism increases the weight of the entire dispenser device to make it difficult to handle, and also increases the manufacturing and sales costs.

Further, in the stirring mechanism, a liquid material discharge amount control method using a piston cannot be adopted, and the discharge amount control method using pressurized air must be used as described above. Can not.

Therefore, the present invention has a common problem to be solved in that the weight of the entire apparatus can be reduced, the cost can be reduced, and the discharge amount can be controlled with high accuracy, on the premise that the liquid agent is reliably stirred.

[0009]

A dispenser device according to the present invention includes a syringe, a liquid ejection mechanism and a stirring mechanism. The syringe accommodates the liquid and has a nozzle for discharging the liquid at the outlet of the liquid. The liquid medicine ejection mechanism is for ejecting the liquid medicine in the syringe from the nozzle of the syringe, and the stirring mechanism is for stirring the liquid medicine in the syringe, and has a structure formed to have a smaller diameter than the inner diameter of the syringe. Or a plurality of stirrers for stirring a liquid contained in the syringe and discharged from the nozzle of the syringe by the liquid discharge mechanism.

According to the present invention, since the stirring mechanism is composed of only one or a plurality of stirrers formed to have a diameter smaller than the inner diameter of the syringe, a liquid material discharge amount control method using a piston can be adopted. Highly accurate discharge amount control is possible. On the other hand, the stirring action by the stirring mechanism is simply
In the process of moving the syringe to a predetermined position, the one or more stirrers move indefinitely in the syringe to stir the liquid agent, so that the stirring mechanism is inexpensive and lightweight. This makes it possible to reduce the weight and cost of the entire apparatus and to control the discharge amount with high accuracy on the assumption that the solvent is reliably stirred.

In the case of the present invention, if an actuator for moving the syringe to a predetermined position is provided, it is easy to move the syringe and easily stir the liquid with a stirrer.

In the case of the present invention, if the liquid material discharging mechanism is constituted by a piston which is fitted and mounted on a syringe and strokes the inside of the syringe to discharge the liquid material from the nozzle of the syringe, highly accurate discharge amount control is achieved. It is possible and preferable.

In the case of the present invention, it is preferable that the stirrer has a large number of small projections on the outer peripheral surface, because the effect of stirring the liquid agent is enhanced.

In the case of the present invention, it is preferable that the stirrer is porous because the effect of stirring the liquid agent is enhanced.

In the case of the present invention, if the stirrer is larger than the specific gravity of the liquid agent, the stirrer is settled at the outlet side of the syringe to prevent the liquid agent from leaving the syringe outlet without being stirred. It is preferable to be able to do so.

In the case of the present invention, when a stirrer receiving member having a plurality of liquid agent passage flow holes smaller than the outer dimensions of the stirrer is provided on the liquid agent outlet side of the syringe, the number of stirrers accommodated as a large stirrer is increased. It is possible to stir the liquid agent sufficiently even if the amount is small, but it is preferable because the stirrer is not damaged by collision of the stirrers.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a dispenser according to an embodiment of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a perspective view of a dispenser apparatus according to an embodiment of the present invention, FIG. 2 is a partially cutaway front view of FIG. 1, and FIG. 3 is a partially cutaway view of a dispenser apparatus for explaining a stirring operation. It is a front view.

The illustrated dispenser device includes a syringe 1, a support mechanism 2 for an actuator (not shown), and a piston 3.

The syringe 1 has a long and narrow cylindrical shape, and has a nozzle 1a at the tip end and an opening at the opposite side, in which a required liquid agent to be agitated is sealed. 2 and supported.

The support mechanism 2 supports the syringe 1 so that the syringe 1 can be moved to a predetermined position on the workpiece by an actuator (not shown) such as a handling robot.

The piston 3 is fitted into the syringe 1 through an opening on the opposite side of the syringe 1 as a liquid material discharge mechanism for discharging the liquid material in the syringe from the nozzle of the syringe, and the stroke of the liquid in the syringe 1 is controlled by the stroke of the syringe 1. Discharge from nozzle 1a.

In the above configuration, the dispenser device of the present embodiment is constituted by a plurality of spherical stirrers 4 and 5 having a smaller diameter than the inner diameter of the syringe 1 as a stirring mechanism for stirring the liquid in the syringe 1. The stirrers 4 and 5 are connected to the nozzle 1a in the syringe 1.
And the piston 3.

When the syringe 1 is moved by the actuator toward a predetermined position of the work as shown by an arrow, as shown in FIG. 3 as moving from (a) to (c), the movement of the syringe is stopped. In the process (see FIG. 3 (b)), the stirrers 4, 5 move indefinitely in the syringe 1 to stir the liquid and prevent the solids in the liquid from settling out. Note that this movement route is not limited to a linear movement, but may be a movement along a curve that draws a circle as shown by an arrow in FIG. 1, or the movement start point and the end point may be the same. . In addition, in order to stir the liquid medicine, not only stirring by the movement of the syringe 1 but also intentionally positively swinging the syringe 1 by an actuator or reciprocating up and down, right and left and back and forth. Stirring may be performed.

When the syringe 1 is stopped, the stirrers 4 and 5 settle at the bottom of the syringe 1. However, the stirrers 4 and 5 settle between the bottom of the syringe 1 and the stirrer 4 and between the stirrers 4 and 5. There is a gap having a sufficient size, and the liquid material pressurized by the piston 3 flows smoothly and is discharged from the nozzle 1a.

As a specific example of the stirring mechanism shown in the figure, a syringe 1 having an inner diameter of 26 mm is provided with two stirrers 4 having a diameter of about 10 mm which are substantially inscribed on the inner surface thereof. By housing and disposing the 15 mm stirrer 5, good stirring can be sufficiently performed. The materials of the stirrers 4 and 5 are desirably chemically stable with respect to the liquid agent and larger than the specific gravity of the liquid agent. For example, cobblestones such as zirconia balls are suitable. In addition, the stirrer 4 is also freely movable in the liquid agent like the stirrer 5.

The stirrer is not limited to the spherical shape as described above, but may be a stirrer having a form as shown in FIGS. 4 (a) to 4 (f).

As shown in FIG. 4 (a), a compound sugar-like stirrer 6 having a large number of small projections 6a on its outer peripheral surface may be accommodated. According to this, when the liquid agent flows around the stirrer 6, a complicated flow is generated by the small projections 6a, and uniform stirring can be expected. Also, since there is a small projection 6a,
Even when the stirrer 6 is settled, an outflow path through which the liquid agent flows out smoothly can be secured between the stirrer 6 and the discharge port at the lower end of the syringe 1.

As shown in FIG. 4B, a large number of through holes 7 are formed.
May be accommodated. According to this, it is possible to expect a stirring action by the liquid agent flowing around the stirring bar 8 and a stirring action by passing through the inside of the stirring bar 8. When the stirrer 8 is settled at the bottom of the syringe and the outlet is closed, the pressurized liquid flows through the through-hole 7 of the stirrer 8.

As shown in FIG. 4 (c), a spherical stirrer 1 having a through hole 9 penetrating in three-dimensional directions of up, down, left, right, front and back.
0 can also be used.

As shown in FIG. 4D, a large number of through holes 1 are formed.
It is also possible to accommodate a plurality of thin plate-shaped stirrers 12 having 1 and move the stirrers 12 more complicatedly to stir the liquid agent. It should be noted that such a stirrer 12 can also be constituted by a net.

As shown in FIG. 4 (e), when one simple spherical stirrer 13 is used, a stirrer receiving member 14 is provided at the outlet side of the syringe 1, and the stirrer receiving member 14 is agitated. By radially forming the slits 15 as a plurality of liquid agent passage flow holes smaller than the outer dimensions of the child 13, the liquid agent can flow.

As shown in FIG. 4 (f), when one simple spherical stirrer 13 is used, a net-shaped stirrer is provided at the outlet side of the syringe 1 as a liquid agent passage flow hole smaller than the outer dimensions of the stirrer 13. By fixing and disposing the child receiving member 16 to receive the stirrer 13, the flow of the liquid agent can be made possible.

The liquid ejection mechanism in the above-described embodiment is a piston type. However, the present invention is not limited to this. The same can be applied.

In the above embodiment, the syringe 1
Is moved by supporting the actuator, but in the present invention, the actuator is not necessarily required,
It can also be applied to a hand-held type.

[0036]

As is apparent from the above description, since the stirring mechanism is composed of only one or a plurality of stirrers formed to have a diameter smaller than the inner diameter of the syringe, a liquid material discharge amount control method using a piston is employed. As a result, while the discharge amount can be controlled with high accuracy, the stirring action of the stirring mechanism simply causes the one or more stirring elements to move indefinitely in the syringe during the process of moving the syringe to a predetermined location. By doing so, the liquid agent is stirred, so that the stirring mechanism is inexpensive and lightweight. As a result, in the case of the present invention, it is possible to reduce the weight and cost of the entire apparatus and to control the discharge amount with high accuracy on the premise that the solvent is reliably stirred.

[Brief description of the drawings]

FIG. 1 is a perspective view of a dispenser device according to an embodiment of the present invention.

FIG. 2 is a partially cutaway front view of FIG.

FIG. 3 is a partially cutaway front view of a dispenser device for explaining a stirring action.

FIG. 4 is a partially broken front view of a main part showing another modification of the stirrer.

FIG. 5 is a perspective view showing an example of a conventional dispenser device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Syringe 1a Nozzle 3 Piston 4,5 Stirrer

Claims (7)

[Claims] A syringe, a liquid ejection mechanism, and a stirring mechanism, wherein the syringe accommodates the liquid and has a nozzle for ejecting the liquid at an outlet of the liquid, and the ejection mechanism includes a liquid ejector in the syringe. From the nozzle of the syringe, and the stirring mechanism is for stirring the liquid agent in the syringe, and is constituted by one or a plurality of stirrers having a structure formed to have a smaller diameter than the inner diameter of the syringe. Agitating the liquid medicine contained in the syringe and discharged from the nozzle of the syringe by the liquid medicine discharging mechanism.
A dispenser device characterized by the above-mentioned. 2. The dispenser device according to claim 1, further comprising an actuator for moving the syringe to a predetermined position. 3. The dispenser device according to claim 1, wherein the liquid material discharge mechanism is configured by a piston that is fitted and mounted in a syringe, and that controls a stroke in the syringe to discharge the liquid material from a nozzle of the syringe. A dispenser device characterized by the above-mentioned. 4. The dispenser device according to claim 1, wherein the stirrer has a large number of small projections on an outer peripheral surface. 5. The dispenser device according to claim 1, wherein the stirrer is porous. 6. The dispenser device according to claim 1, wherein the stirrer has a specific gravity larger than that of a liquid agent. 7. The dispenser device according to claim 1, wherein a stirrer receiving member having a plurality of liquid agent passage flow holes smaller than an outer dimension of the stirrer is provided on a liquid agent outlet side of the syringe. A dispenser device characterized by the above-mentioned.