JPS5942136Y2 - adhesive applicator - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an adhesive applicator capable of applying a fixed amount of liquid adhesive such as epoxy, acrylic, or rubber adhesive.

A conventional apparatus for applying a fixed amount of epoxy, acrylic, or rubber liquid adhesive has been constructed as shown in FIG.

That is, a hose 4 for supplying air 3 is connected to the cylinder 2 into which the adhesive 1 is injected, and a vacuum source 6 and a pressure air source 7 are connected to this hose 4 via an air/vacuum switching valve 5. A workpiece 8 is disposed at the bottom of the cylinder 2, and a button is pressed.In order to apply a fixed amount of adhesive 1 to the workpiece 8 using the cylinder 2, the switching valve 5 is switched to the pressure air source T side. Air 3 is sent into the cylinder 2 to push out the adhesive 1 and apply it to the object 8 to be coated, and then the switching valve 5 is switched to the vacuum source 6 side to create a negative pressure in the cylinder 2 and stop extruding the adhesive 1. Ta.

In the adhesive application device with this configuration, it is difficult to adjust the pressure of the air 3, so stable quantitative application cannot be performed, and the air 3 must be turned on to apply a small amount of adhesive.

Adjustment is difficult due to variations in OFF timing, and
It was no longer possible to use it as a stable device.

The present invention eliminates the above-mentioned drawbacks of the prior art.

Embodiments of the present invention will be described below with reference to FIGS. 2 to 7 of the drawings.

tr, In FIGS. 2 to 6, 9 is a U-shaped seat frame, and a rotating shaft 1 is connected to this frame 9 via a bearing 10.
1 is rotatably attached to the rotary shaft 11, along with a ratchet wheel 12 and a positioning disc 13, a disc 15 having several adhesive-pushing holes 14 provided at equal intervals on its lower end is fixed.

A rotary drive ratchet 16 is engaged with the curved surface of the ratchet wheel 12 to engage the button, and a positioning notch 17 is engaged with a concave notch 13' on the circumferential surface of the positioning disc 13.

A squeegee 19 holding an adhesive 18 is fixed to the frame 9 on the upper surface of the disc 15, and the squeegee 19 is used to place the adhesive 18 into the adhesive pushing hole 14 of the disc 15. Push in a certain amount.

Further, a coating pin 22 is provided on a part of the upper surface of the disk 15 and is guided by a guide tube 20 and moved up and down by a drive source 21 such as a cylinder. It is configured to move up and down in synchronization with intermittent rotation.

Then, the lower part K of the disc 15 corresponding to this application pin 22
An H coated object 23 is arranged.

Next, the operation of the adhesive applicator of the present invention will be explained.

The adhesive 18 held in the squeegee 19 is applied to the ratchet wheel 1 by the rotational drive ratchet 16 of the disk 15.
2 and the squeegee 19 when rotated via the rotating shaft 11.
As a result, the adhesive-pushing hole 14 of the disc 15 is pushed in as shown in FIG.

When the disc 15 is rotated by a certain angle, the positioning notch 17 is inserted into the recessed part 13' of the positioning disc 13 and positioned, and when the rotation is stopped as shown in FIG. 7a, as shown in FIG. As shown in bK, the application pin 22 moves downward and the adhesive pushing through hole 14 retains the adhesive 18 on the disc 15.
It approaches the object to be coated 23 with the adhesive 18 attached to its lower end, and finally comes into contact with the object to be coated 23 as shown in FIG. 7C.

Next, when the applicator pin 22 is raised as shown in FIG. 7d,
The adhesive 18 at the lower end of the applicator pin 22 is applied to the object 23 to be applied.
It is applied as shown in Figure eK.

The application size is determined by changing the diameter d of the application pin 22 and the diameter of the adhesive pushing through hole 14.

Since the adhesive applicator of the present invention is configured as described above, it is possible to apply a small amount of adhesive, and the applied amount can be kept constant, and maintenance is easy and inexpensive. It has the advantage of being able to perform the following tasks and its operation is reliable, making it a dog of practical value.

[Brief explanation of the drawing]

Figure 1 is a schematic configuration diagram showing a conventional adhesive applicator;
The figure is a schematic sectional view showing one embodiment of the adhesive applicator of the present invention, FIG. 3 is a top view of the ratchet wheel and rotational drive ratchet of the device, and FIG. 4 is a positioning disk and positioning device of the device. A top view of the notch, FIG. 5 is a top view of half of the disk of the device, FIG. 6 is a side view of the squeegee portion, and FIG. 7a
-e is a sectional view showing the operation of the same essential parts. 9... Frame, 10... Bearing, 11
... Rotating shaft, 12 ... Ratchet wheel, 13 ... Positioning disc, 13' ...
...Concave cutout, 14...Through hole for pushing adhesive, 15
... Disk, 16 ... Rotation drive ratchet, 17 ... Positioning notch, 18 ...
...Adhesive, 19...Squeegee, 20...
... Guide tube, 21 ... Drive source, 22 ...
...Application pin, 23...Object to be coated.

Claims (1)

[Scope of utility model registration request] Adhesive-pushing holes are provided at regular intervals on a disc that is intermittently rotated by a rotating shaft, and adhesive is held in a portion of the rotation locus of the adhesive-pushing through-holes of this disc, and this adhesive is A squeegee is provided to be pushed into the adhesive pushing hole, and when the disk is stopped on the disk, the squeegee is moved downward corresponding to the adhesive pushing hole that holds the adhesive and is inserted into the adhesive pushing hole. 1. An adhesive applicator comprising a vertically movable applicator pin for adhering adhesive to the lower end and applying the adhesive to an object to be coated supplied to the lower part of a disc.