JPH0451903Y2 - - Google Patents

Description

[Detailed Description of the Invention] a. Field of Industrial Application The present invention relates to a device for removing excess adhesive adhered to an adhesive application nozzle.

b. Prior Art As a method of attaching a window glass to an automobile, for example, there is a method of directly bonding the window glass to the vehicle body. In this attachment method, a high viscosity fluid such as a one-component polyurethane adhesive is applied to the entire circumference of the window glass in an arbitrary shape. In this application process, adhesive is applied to the window glass one after another as it is being transported using the adhesive application nozzle that is integrally attached to the moving arm of the autopilot. When applying adhesive, the initial bead shape was not consistent, so extra mating allowance was required to match the bead joints.

c. Problems that the invention aims to solve However, with the conventional adhesive application method described above, the bead width of the adhesive at the seam becomes thicker, and when the window glass is attached to the vehicle body, the adhesive protrudes toward the inside of the vehicle. There was a risk that the appearance would be damaged. Furthermore, due to the extra alignment allowance, an excessive amount of adhesive adhered to the nozzle, making it impossible to form a stable bead shape.

Note that the excess adhesive adhering to the adhesive application port of the nozzle can be cut off and removed using a thread attached to a jig, but this will prevent continuous application of the adhesive. This will reduce work efficiency. In addition, the adhesive that was cut off accumulated on the threads and stuck to them, making them unusable immediately, making maintenance difficult and not an effective method.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide an adhesive removal device for an adhesive application nozzle that can solve the above-mentioned problems.

d Means for Solving the Problems In order to solve the problems of the above-mentioned prior art, in the present invention, a moving operation unit in which an adhesive application nozzle is integrally attached to the moving arm of the autopilot device is provided. and a device for removing adhesive adhered to the adhesive application port of the nozzle during operation of the moving operation section, the device having a feeding reel for a filamentous member and a handle for winding in the moving area of the arm. A take-up reel is placed facing the reel, a wire member is stretched between both reels, the tip of the nozzle is rubbed against the stretched wire member, and the handle is moved by the moving operation section. I try to operate it.

Hereinafter, the present invention will be explained in detail based on illustrated embodiments.

FIG. 1 shows an embodiment of the present invention. In the figure, 1 is a teaching playback type multi-joint moving arm operated by an autopilot (not shown), and 2 is the tip of the moving arm 1. 3 is a pipe for supplying adhesive 4 to gun 2; 5 is an adhesive application nozzle integrally attached to the lower end of gun 2; The arm 1, the gun 2, and the nozzle 5 constitute a moving operation section 6. In addition, nozzle 5
An adhesive application port 7 is provided at the lower end of the holder.

On the other hand, an adhesive removing device 8 is installed in the moving area of the moving arm 1. This removal device 8
has a thread unwinding mechanism 10 and a thread winding mechanism 11 placed on a base 9, and these mechanisms 10, 1
1 are arranged facing each other with an opening 12 of the base 9 therebetween.

The thread feeding mechanism 10 includes a pedestal 13 formed in a substantially L-shape, a pair of pillars 14 and 15 erected on a mounting portion 13a of the pedestal 13, and a pair of pillars 14 and 15 installed between these pillars 14 and 15. A feed reel 1 rotatably held by a bolt 16 and a nut 17
8, and around the feed reel 18 is wound a fishing line 19, which is a filament member whose other end is wound onto a take-up reel, which will be described later. Note that a V for guiding the fishing line 19 is provided at the center of the upper end of the rising portion 13b of the cradle 13.
A letter-shaped guide groove 20 is provided.

Further, the thread winding mechanism 11 includes a thread unwinding mechanism 10.
A pedestal 21 formed in a substantially L-shape similarly to the above, a pair of pillars 22 and 23 erected on the mounting portion 21a of the pedestal 21, and a bolt 24 and a nut 25 installed between these pillars 22 and 23. The fishing line 19 is wound around the take-up reel 26, which is rotatably held by a take-up reel 26. Further, a ratchet 27 is disposed between the inner surface of the column 22 and the take-up reel 26, and a peg handle 28 is connected to the take-up reel 26 via the ratchet 27 on the outer surface of the column 22.
is rotatably mounted.

The handle 28 is rotated when the engaging portion 28a is pressed by the nozzle 5 constituting the moving operation unit 6, and the take-up reel 26 is also rotated as the handle 28 is rotated. ing. Further, the handle 28 is always urged in the opposite direction to the bobbin winding direction (direction of arrow A in the figure) by a heavy plow (not shown), but the take-up reel 26 is urged in the same direction by the ratchet 27. Rotation to is prevented. A V-shaped guide groove 29 for guiding the fishing line 19 is provided at the center of the upper end of the rising portion 21b of the holder 21.
A scraping spatula 30 formed in a dogleg shape is attached to the end face on the thread payout mechanism 10 side. The upper edge of this spatula 30 is arranged so as to be approximately at the same height as the bottom of the guide groove 29.

On the other hand, the fishing line 19 is stretched between the pay-out reel 18 and the take-up reel 26 via the rising portions 13b, 21b of the cradle 13, 21. For this reason, the feed reel 18 and the take-up reel 26 are each provided with a compression spring (not shown).
The fishing line 19 is always under tension due to the elastic force of the compression spring. For example, the compression springs are connected to the sides of the supports 15, 23 and the reel 18,
26.

Next, the operation of removing excess adhesive 4 adhering to the coating nozzle 5 by the removing device 8 having the above configuration will be explained.

First, the nozzle 5, which has applied adhesive 4 to a window glass (not shown), is moved by the moving arm 1 to the location where the removal device 8 is installed. The nozzle 5, held in the position shown in Fig. 1, is further moved by the moving arm 1 in the direction of arrow B, and its lower end passes through a stretched fishing line 19 while being rubbed against the fishing line 19. Then, the adhesive 4 adhering to the application outlet 7 of the nozzle 5 is cut off by the fishing line 19, and the excess adhesive 4 adheres to the fishing line 19 and is removed.

Subsequently, the moving operation part 6 is moved to the position of the handle 28 by the moving arm 1, and the nozzle 5 engages with the engaging part 28a of the handle 28. In this state, when the movable arm 1 moves toward the line winding mechanism 11 and presses the handle 28, the handle 28 rotates in the direction of arrow A, and along with this, the take-up reel 26
also rotate in the same direction. The fishing line 19 is then wound onto the take-up reel 26 and moved in the direction of arrow C.
The adhesive 4 attached to the fishing line 19 is removed from the take-up reel 26.
It is scraped off with a spatula 30 when it is wound up. Note that when the pressure on the handle 28 by the moving operation section 6 is released, the handle 28 is returned to the original setting position by the heavy peg.

By performing such an operation every time after applying the adhesive to the window glass, the adhesive 4 having a constant shape of cut is always obtained at the adhesive application port 7 of the nozzle 5. Note that since the adhesive 4 does not stick to the wound fishing line 19, it is possible to use it again.

Although the embodiments of the present invention have been described above, the present invention is not limited to the embodiments described above, and various modifications and changes can be made based on the technical idea of the present invention.

For example, in the embodiments described above, one movable arm 1 was used to apply and remove the adhesive 4, but a plurality of movable arms 1 may be used. According to this, one movable arm performs the coating work, while the other movable arm operates the nozzle 5.
It becomes possible to carry out the removal work by rubbing the coating port 7 against the fishing line 19, and further to operate the handle 28 with another movable arm, so that further improvement in work efficiency can be expected.

Effect of the Invention As described above, the adhesive removal device for an adhesive application nozzle according to the present invention has a reel for feeding a wire member and a reel for winding a wire member with a handle in the moving area of the moving arm of the automatic pilot device, and the wire member is stretched between the two reels. After the adhesive is applied, the tip of the adhesive application nozzle attached to the moving arm is rubbed against the wire member to remove the adhesive that has adhered thereto, so that the adhesive can always be obtained at the adhesive application outlet of the nozzle with a constant cut shape. Therefore, a constant adhesive seam can be formed, and the width of the application bead can be narrowed or eliminated, so that, for example, when a window glass coated with adhesive is attached to the vehicle body, the adhesive does not overflow to the inside of the vehicle interior, improving the appearance. In addition, there is no gap at the adhesive seam, so water leakage can be prevented.

Further, in the adhesive removing device of the present invention, the moving operation unit, which is formed by integrally attaching a nozzle to the moving arm, is engaged with a handle of a take-up reel to wind up the wire member on the take-up reel. Therefore, adhesive application and removal work can be performed continuously, and the number of cleaning times for the equipment to stabilize the bead shape can be reduced, improving work efficiency and making equipment maintenance easier. , which is extremely advantageous economically.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing an embodiment of an adhesive removal device for an adhesive application nozzle according to the present invention. DESCRIPTION OF SYMBOLS 1... Moving arm, 4... Adhesive, 5... Adhesive application nozzle, 6... Moving operation part, 7... Adhesive application opening, 8... Adhesive removal device, 18... Feeding reel, 19...Fishing line, 26...Take-up reel, 2
8...Spindle handle.

Claims (1)

[Scope of utility model registration request] A device for removing adhesive adhered to the adhesive application port of the nozzle during operation of the movement operation unit, which is provided with a movement operation unit having an adhesive application nozzle integrally attached to the movement arm of the autopilot device. In this method, a feed-out reel for a filamentous member and a take-up reel having a handle for winding are arranged facing each other in the movement area of the arm, and a filamentous member is stretched between both reels, and the filament member is stretched between the two reels. 1. An adhesive removal device for an adhesive application nozzle, characterized in that the tip of the nozzle is rubbed against the linear member, and the handle is operated by the moving operation section.