JPH04247256A - Coating jig - Google Patents

Abstract

PURPOSE:To absorb the fluctuations in the distance between the tip of a coating member and a surface to be coated in the coating jig consisting of a base to be driven in the direction approaching or separating from the surface to be coated and an acicular coating member held by the base. CONSTITUTION:This cooling jig consists of a base 1 to be driven in the direction approaching or separating from a surface 90 to be coated, an acicular coating member 2 held by the base 1 and capable of being freely moved with respect to the base 1 and a member 3 for energizing the coating member 2 toward the surface 90. The tip of the coating member 2 is abutted on the surface 90, and an adhesive, etc., deposited on the tip of the coating member 2 are transferred to the surface 90.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coating jig for applying liquid adhesive or the like to a surface to be coated in dots.

0002

2. Description of the Related Art For example, a positioning boss is fixed to a side molding of an automobile by adhesive. In this bonding process, multiple boss parts are placed in a line on a component holder with the adhesive side facing upward, and a needle-shaped application jig with instant adhesive attached to the tip is brought into contact with the adhesive surface to adhere them. transfer the agent,
The side molding is pressed and adhered from above.

0003

[Problems to be Solved by the Invention] Conventionally used coating jigs consist of a base body that is driven toward and away from the surface to be coated, and a needle-shaped coating member fixed to the base body. has been done. Then, the adhesive is transferred by moving the base body to a position where the tip of the application member substantially contacts the adhesive surface of the boss component. However, the adjustment of the distance between the tip of the coating member and the surface to be coated is delicate, resulting in errors in manufacturing the coating jig, solidification of the adhesive at the tip of the coating member, and
Transfer of the adhesive was sometimes difficult due to variations in the parallelism of the component holder. Therefore, it is necessary to frequently adjust the distance between the tip of the coating member and the surface to be coated, which poses a problem in terms of productivity.

The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a structure that can absorb variations in the distance between the tip of the coating member and the surface to be coated.

[0005]

[Means for Solving the Problems] A coating jig of the present invention that solves the above problems includes a base body that is driven in a direction approaching and away from a surface to be coated, and a base body that is driven in a direction approaching and a direction away from a surface to be coated. It is characterized by comprising a needle-shaped application member held on the base body so as to be movable relative to the base body, and a biasing member held on the base body that biases the application member in a direction toward the surface to be coated. .

[0006]

[Operation] In the coating jig of the present invention, adhesive or the like is first applied to the tip of the coating member. For example, the base body is moved to the position of the adhesive tank, and further moved downward to deposit the adhesive on the tip of the application jig. After rising, it moves to the position of the surface to be coated. Then, the base moves a predetermined distance in a direction approaching the surface to be coated. Here, the predetermined distance is set to a distance further away from the standard distance at which the tip of the application member contacts the surface to be coated, taking into account the error. Then, even if the tip of the coating member does not reach the surface to be coated even after moving the standard distance due to various errors and fluctuations, the tip of the coating member will surely reach the surface to be coated because it will move further. In addition, if the tip of the coating member contacts the surface to be coated before moving a predetermined distance, the coating member will be pressed by the surface to be coated against the biasing force of the biasing member and will move relative to the substrate, resulting in interference. To reliably maintain a state in which the tip of a coating member and a surface to be coated are in contact with each other.

[0007] Thereafter, as the substrate moves in a direction away from the surface to be coated, the coating member is separated from the surface to be coated, and the adhesive or the like adhering to the coating member is transferred to the surface to be coated.

[0008]

[Effects of the Invention] Therefore, according to the coating jig of the present invention,
The biasing force of the biasing member allows coating with a constant load at all times, and there is no variation in the amount of coating. Furthermore, by changing the biasing force of the biasing member, it is easy to set the load, so it is possible to flexibly respond to changes in the hardness of the surface to be coated. Furthermore, even if various errors occur or the parallelism changes, the coating member reliably contacts the surface to be coated, so there is no need to adjust the distance, and productivity can be improved.

[0009]

[Examples] Hereinafter, the present invention will be explained in detail using examples. Figure 1
1 shows a coating jig according to an embodiment of the present invention. This coating jig includes a case 1 as a base, a pair of coating members 2 held in the case 1, a pair of coil springs 3 as biasing members interposed between the case 1 and the coating members 2, A piston rod 5 fixed to the case 1 and driven in the vertical direction
0 and a lid member 4 fixed to the tip.

[0010] The case 1 has a substantially container shape with an upward opening, and a pair of through holes 10 are provided in the bottom surface. Each coating jig 2 includes a cylindrical base 20, a coating needle 21 protruding in the axial direction from one end of the base 20, a flange 22 provided at the other end of the base 20 and having a larger diameter than the base 20, and a flange. Part 2
Case 1 protrudes from 2 in the axial direction and has a smaller diameter than the base 20.
The holding part 23 has a length shorter than the depth of the holding part 23. Further, the applicator needle 21 is covered with a pipe 24 made of fluororesin.

The diameter of the base portion 20 is approximately equal to the diameter of the through hole 10, and the base portion 20 is inserted into the through hole 10 and can be relatively moved in the axial direction.
By locking the flange 22 to the bottom surface of the case 1, its downward movement is restricted. Furthermore, the tip of the holding portion 23 comes into contact with the lid member 4, thereby restricting its upward movement. The coil spring 3 is held by the holding part 23, interposed between the lid member 4 and the flange part 22, and always urges the application member 2 downward. That is, a pair of application members 2
are configured to be independently movable relative to the case 1 in the vertical direction.

In the coating jig of this embodiment constructed as described above, the lid member 4 is connected to the upper and lower cylinder devices 5 as shown in FIG.
The vertical cylinder device 5 is further fixed to a piston rod 70 of a horizontal cylinder device 7 horizontally fixed to the base 6. Therefore, the application jig is movable in the horizontal direction by the horizontal cylinder device 7, and vertically movable by the vertical cylinder device 5.

Now, how to use this coating jig will be explained. First, at a first position A in FIG. 2, an adhesive tank 8 containing a moisture-curing instant adhesive is placed below the upper and lower cylinder device 5. At that position, the upper and lower cylinder devices 5 are driven, and the coating jig is lowered together with the piston rod 50. After the tip of the pipe 24 is immersed in the adhesive 80 in the adhesive tank 8 to a predetermined depth, the piston rod 50 rises and the pipe 24 comes out of the adhesive tank 8. At this time, a predetermined amount of adhesive 80 is attached to the tip of the pipe 24.

Next, the horizontal cylinder device 7 is driven, and the upper and lower cylinder devices 5 and the coating jig are transported to the second position B. At the second position B, an object to be adhered 9 is fixed below the upper and lower cylinder device 5, and its surface to be coated 90 is exposed upward. At that position, the upper and lower cylinder devices 5 are driven, and the coating jig is lowered together with the piston rod 50. Then, after the tip of the pipe 24 comes into contact with the surface 90 to be coated, the coating jig is raised, whereby the adhesive 8 adhering to the pipe 24 is transferred to the surface 90 to be coated.

Here, it is assumed that the object to be adhered 9 is not fixed well and the surface to be coated 90 is not horizontal. In such cases, with conventional fixed type application jigs, even if one of the pair of application jigs contacts the surface to be coated, the other may not, and the amount of application by the pair of application jigs may be reduced. Each case may be different, and the height needs to be adjusted depending on the situation. However, according to the coating jig of this embodiment, even if the surface to be coated 90 is not horizontal, the difference is absorbed by the elastic deformation of the coil spring 3, and the tips of the pair of pipes 24 are moved at different times. Reliably contacts the surface 90 to be coated. Therefore, there is no need for adjustment as in the conventional case.

[0016]Although the adhesive gradually adheres to the pipe 24 and hardens, maintenance is easy by simply replacing the pipe 24 periodically. Therefore, according to the application jig of this embodiment, even if an error occurs in the shape or fixing state of the object 9 to be adhered, the adhesive can be reliably applied. Furthermore, after the pipe 24 comes into contact with the surface 90 to be coated, until the tip of the holding part 23 comes into contact with the lid member 4, the only force acting on the application member 2 is the biasing force from the coil spring 3. The load acting on the surface to be coated 90 is constant. Further, the load can be easily set by selecting the type of coil spring 3 depending on the hardness of the object to be adhered.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of the configuration of a coating jig according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram of the coating jig shown in FIG. 1 and how to use it.

[Explanation of symbols]

1: Case (base) 2: Coating member 3:
Coil spring (biasing member) 4: Lid member 5: Upper and lower cylinder device 7: Horizontal cylinder device 8: Adhesive tank 9: Object to be adhered
90: Painted surface

Claims (1)

[Claims] 1. A base body driven in a direction toward and away from a surface to be coated, and a needle held on the base body so as to be movable relative to the base body in a direction toward and away from the surface to be coated. 1. A coating jig comprising: a coating member having a shape of a coating member; and a biasing member held by the base body and biasing the coating member in a direction toward the surface to be coated.