JPH0315171Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field) The present invention relates to an adhesive applicator, and more particularly, to an adhesive applicator in which twisting of an adhesive supply hose is minimized.

(Prior Art) In order to adhere a window glass to the flange portion of a vehicle, it is necessary to mold a high viscosity adhesive onto the peripheral adhesive surface of the window glass w so as to form a desired bead shape.

For this purpose, a coating nozzle g as shown in FIG.
The coating nozzle g must be moved along the peripheral adhesive surface while rotating the coating nozzle g by 90 degrees on each side of the window glass w so that the notch opening f always faces backward in the direction of travel. If the robot arm is used to move the robot, the adhesive supply hose h will become tangled around the support rod r as the direction changes from the starting position to each adjacent side, resulting in the device being repeatedly moved. When used in a similar manner, problems arise when the joints that are subjected to large deformations become fatigued.

(Purpose) The present invention was developed in view of the above problems, and its purpose is to prevent adhesives from being applied even when the adhesive is continuously applied to the periphery of the surface to be applied.
It is an object of the present invention to provide a device capable of suppressing twisting of an adhesive supply hose as much as possible.

(Configuration) In other words, the present invention has the following objectives:
One end of an arm member with a drug supply flow path provided inside is fixed to a rotatable support rod, and a nozzle that communicates with the drug supply flow path is attached to the lower part of the fixed end side of the arm member. The present invention provides a mechanism for preventing twisting of a hose in a coating device, in which a flexible hose is rotatably attached to an end thereof and communicates with a agent supply flow path, and a flexible hose is connected to the joint.

(Example) The details of the present invention will be explained below based on the illustrated example.

Reference numeral 1 in the figure indicates the support rod 1 of the robot arm 12.
The arm 1 has one end fixed to the lower end thereof, and has an adhesive supply channel 3 formed inside.A cylindrical nozzle 6 with a cutout opening 5 on the side surface of the tip is attached to the fixed end side of the arm 1, which has one end fixed to the lower end thereof. It is screwed downward onto the axial extension of the support rod 13 so as to communicate with the supply channel 3 .

7 is a bottomed cylindrical joint connected to a flexible hose 9 for supplying adhesive via an elbow 8;
Four holes at 90° intervals are rotatably fitted and fixed into the vertical sleeve 2 provided on the free end side of the arm 1 described above, and are drilled from the surface thereof toward the internal supply path 10. 11 is connected to the supply channel 3 of the arm 1 to form a swivel joint.

Therefore, in order to mold the adhesive onto the peripheral adhesive surface of the window glass w using the device configured as described above, first the nozzle 6 is positioned on one side a of the window glass w, and the notch opening 5 is aligned in the direction of travel. When the support rod 13 is rotated so as to face rearward, the arm 1 similarly rotates around the support rod 13, and in this embodiment is located at the rear of the support rod 13 as shown in FIG. 2A. . On the other hand, a joint 7 rotatably attached to the free end of the arm 1 has an elbow 8 at its end to maintain a flexible hose 9 supported on the robot arm 12 by a fixing fitting 14 in a natural position. It is located towards the left in the figure.

In this state, the nozzle 6 moves along one side a of the windshield w from left to right, and when it reaches the right corner, rotates 90 degrees counterclockwise in the figure and moves to the second side b. As shown in Figure 2B, the hose 9 rotates the elbow 8 at the tip of the joint 7 by 90 degrees in the opposite direction with respect to the arm 1, thereby maintaining the same posture as the bow against torsional stress. do.

Next, when the nozzle 6 rotates 180 degrees from the initial state and moves onto the third side c, the flexible hose 9 leaves the rotation of the joint 7 relative to the arm 1 as it is, and twists 90 degrees for the first time at this stage (the third side c). Figure 2c).

Furthermore, when moving to the fourth side d and rotating the nozzle 6 by 270 degrees, the flexible hose 9 is twisted by 180 degrees while the joint 7 remains as it is (Fig. 2 D).
When the nozzle 6 rotates 360 degrees and moves to the first side a again, the joint 7 rotates an additional 90 degrees (180 degrees from the initial state), and this rotation untwists the flexible hose 9 by 180 degrees. Stop at ° (Figure 2 E).

(Effects) As explained above, according to the present invention, since the flexible hose is connected to the other end of the arm member having the nozzle at one end via the rotatable joint member, The torsional stress applied to the flexible hose can be absorbed in half by the rotation of the joint member, and fatigue deterioration thereof can be minimized to significantly improve the durability of the device.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an apparatus showing an embodiment of the present invention, FIG. 2 is a view showing the coating operation of the same device, and FIG.
The figure shows the coating operation of a conventional device. 1... Arm, 2... Sleeve, 6... Nozzle, 7... Coupling, 8... Elbow, 9... Flexible hose, 12... Robot arm, 13...
Support rod, w... window glass.

Claims (1)

[Scope of utility model registration request] A support that can rotate around its own central axis in a coating device that applies a coating agent supplied from a flexible hose around the surface to be coated while positioning the notch opening provided on the side surface of the nozzle tip at the rear in the direction of travel. One end of an arm member having a drug supply channel provided therein is fixed to the rod, a nozzle communicating with the supply channel is attached below the fixed end side of the arm member, and a nozzle communicating with the supply channel is attached to the free end side of the arm member. . A coating device, characterized in that a joint communicating with the supply channel is rotatably attached to the joint about its own central axis parallel to the central axis of the support rod, and the flexible hose is connected to the joint.