JP6499904B2 - Adhesive applicator, application method, and adhesion method - Google Patents

Description

  The present invention relates to an applicator, an application method, and an adhesion method for applying an adhesive to an application surface provided in a strip shape on an inner periphery.

Conventionally, various apparatuses for uniformly applying an adhesive to a surface to be coated have been proposed, and an apparatus for uniformly applying an adhesive to a surface to be coated provided in a strip shape on the inner periphery of a cylindrical member. Is also known.
For example, in the following Patent Document 1, an adhesive is applied by a nozzle while rotating a cylindrical hood at a high speed. In Patent Document 2 and the like described below, a thin film is formed by sealing and sandwiching both ends of a cylindrical member with a sandwiching section, supplying an adhesive, and causing the centrifugal member to flow.

JP 05-329438 A JP 2011-50838 A

  However, in the conventional apparatus, it is necessary to prevent the scattering of the adhesive, and it is also necessary to adjust various conditions for coating, and the apparatus is complicated.

  Accordingly, an object of the present invention is to provide an applicator, an application method, and an adhesion method capable of applying an adhesive as uniformly as possible with a simple structure to a surface to be coated provided in a strip shape on the inner periphery. To do.

The applicator of the present invention that achieves the above object is an applicator for applying an adhesive to a surface to be coated provided in a band shape on the inner periphery, and a support portion that can be inserted inside the surface to be coated; A transfer part made of an elastic material that is supported on the outer periphery of the support part so as to be opposed to the entire surface to be coated and formed in a band shape wider than the surface to be coated, and a fluid pressure is applied to the transfer part from the inside provided in the support part. And a pressurizing part that bulges outward, and the transfer part is arranged in a non-bulged state so as to be spaced apart from each other at equal intervals in the close state over the entire surface to be coated .

  In this applicator, the transfer portion may be fixed to the support portion on both side edges in the width direction so that the bulging amount of the transfer portion corresponding to the both side edges of the coated surface during bulging may be smaller than that of the intermediate portion. .

The coating method of the present invention that achieves the above object is a coating method using the applicator as described above, wherein an adhesive is attached to the outer surface of the transfer portion, and the transfer portion is inserted inside the coated surface. and the side edge of the transfer portion is positioned outside the opposite side edges of the coated surface, the transfer portion by equally spaced at proximity over the entire circumference and the coated surface placed opposite, of the pressure fluid The transfer part is bulged by pressure and brought into contact with the surface to be coated, whereby the adhesive is applied to the surface to be coated.

  In this coating method, after the transfer portion is bulged and brought into contact with the surface to be coated, the transfer portion may be separated from the surface to be coated by reducing the fluid pressure of the pressurizing portion.

  The bonding method of the present invention that achieves the above object is a bonding method for bonding a female member having a belt-shaped inner peripheral surface extending in the circumferential direction and a male member having an outer peripheral surface that is in abutting contact with the inner peripheral surface. Then, the adhesive is applied to the inner peripheral surface by the application method as described above, and the outer peripheral surface of the male member is inserted into the inner peripheral surface to be adhered and adhered.

  According to the applicator of the present invention, the transfer part made of an elastic material is supported by the support part, and the transfer part is bulged outward by applying fluid pressure from the inside of the transfer part by the pressurizing part. Adhesive is attached to the outer surface of the substrate in advance, the transfer part of the support part is inserted inside the coated surface, and the transfer part bulges outward by fluid pressure. Then, the adhesive can be applied to the transferred portion.

  Here, since the transfer portion is formed in a band shape wider than the surface to be coated and is supported so as to be able to face the entire surface to be coated, the transfer portion is spaced from the surface to be coated in a state of being closely spaced and swelled. In this case, the transfer portion can be brought into close contact with each portion in a wide range of the transferred portion with the same pressure. Therefore, the adhesive of the transfer portion can be applied as evenly as possible over a wide range of the application surface. As a result, it is possible to provide an applicator capable of applying an adhesive as uniformly as possible with a simple structure to a surface to be applied provided in a strip shape on the inner periphery.

  Furthermore, according to the adhesive application method and the adhesive method of the present invention, since the adhesive is applied using the applicator as described above, it is possible to apply the adhesive as uniformly as possible to the surface to be applied. .

It is sectional drawing of the applicator which concerns on embodiment of this invention. (A)-(d) is a fragmentary sectional view for demonstrating the coating method using the applicator which concerns on embodiment of this invention, respectively. It is a conceptual diagram which shows the adhesion means used in the coating method which concerns on embodiment of this invention. It is a conceptual diagram which shows the coater used in the coating method which concerns on embodiment of this invention. It is a fragmentary sectional view which shows the female member and male member which were adhere | attached in embodiment of this invention. It is sectional drawing of the applicator which concerns on other embodiment of this invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
In this embodiment, as shown in FIG. 5, an annular female member 11 in which the inner peripheral surface 12 is continuously provided in the circumferential direction, and an outer peripheral surface 17 are provided in the continuous belt in the circumferential direction. An example in which the male member 16 having the truncated cone-shaped portion is bonded will be described.

  As shown in FIG. 1, the coating device to be used includes an applicator 20 that applies an adhesive 15 (see FIG. 2) to a strip-shaped coated surface 13 formed of an inner peripheral surface 12 of a female member 11. In this embodiment, the transport tool 40 that supports the applicator 20 and can be disposed at an appropriate position is provided. However, the transport tool 40 is not particularly limited, and can be manually performed by an operator.

  The applicator 20 includes a support portion 22 that can be inserted inside the coated surface 13 of the female member 11, a transfer portion 21 that is supported on the outer periphery of the support portion 22 and can be opposed to the entire coated surface 13, and the support portion 22. And a pressurizing unit 23 that can bulge the transfer unit 21 outward.

The support part 22 has a truncated cone part 22a and a shaft part 22b formed around the axis L, and is made of a hard material. The shaft portion 22b is supported and transported by the transport tool 40, and the position is adjusted.
When the frustoconical portion 22 a is arranged at a predetermined position by the transport tool 40, it is inserted inside the surface to be coated 13 and is disposed opposite to the surface to be coated 13 with a gap of a predetermined interval.

  The transfer part 21 is formed in an endless belt shape by an elastic material. The transfer portion 21 of this embodiment has a width wider than the width of the coated surface 13 and is fixed in close contact with the support portion 22 at both side edges 21e of the transfer portion 21 in the width direction.

  The pressurizing unit 23 is formed in an endless shape on the outer periphery of the frustoconical portion 22a of the support unit 22 and includes a pressurization chamber 23a including a groove and the like adjacent to the inside of the transfer unit 21, and the support unit 22 and the shaft unit 22b. An internal communication path and a working fluid flow path 23b formed by a pipe connected to the communication path, and an operation portion 23c such as a valve connected to the flow path 23b for loading and releasing the pressure of the working fluid. I have.

  In the pressurizing unit 23, by supplying the fluid from the flow path 23b to the pressurizing chamber 23a by controlling the operating unit 23c, the transfer unit 21 can be loaded with fluid pressure from the inside. The intermediate part between the side edges 21e can be bulged outward. Moreover, the transfer part 21 can be contracted by releasing the pressure in the pressurizing chamber 23a.

The method of apply | coating the adhesive agent 15 to the female member 11 using the coating device which has such an applicator 20, and adhere | attaching this female member 11 and the male member 16 is demonstrated.
First, the applicator 20 is supported by the transport tool 40, and the adhesive 15 is adhered as uniformly as possible to the entire circumference of the outer surface of the transfer portion 21, as shown in FIG.
The attachment method for attaching the adhesive 15 is not particularly limited. For example, the attachment unit as shown in FIG. 3 is used, and the transfer unit 21 is directly brought into contact with the adhesive 15 stored in the storage unit 31 and rotated. You may let them.
Moreover, as shown in FIG. 4, you may adhere using the adhesion | attachment means like the coater 30 provided with the storage part 31 of the adhesive agent 15, and rolls 32, such as a doctor roll and a coating roll. In that case, the applicator 20 is transported by the transport tool 40 and placed at a predetermined position, the roll 32 is brought into contact with the entire width of the transfer unit 21, and the roll 32 and the transfer unit 21 are rotated to transfer the adhesive 15. It can be uniformly attached to the entire circumference of the portion 21.

  After adhering the adhesive 15 to the transfer portion 21, the applicator 20 is moved by the transport tool 40, and the transfer portion 21 is coaxially inserted into the coated surface 13 of the female member 11 as shown in FIG. . As a result, as shown in FIG. 2B, both side edges 21e of the transfer portion 21 are positioned outside both side edges 13e of the surface to be coated 13, and the transfer portion 21 to which the adhesive 15 is adhered and the surface to be coated 13 However, they are opposed to each other at equal intervals in the proximity state over the entire circumference.

By supplying the fluid pressure to the pressurizing chamber 23a by the pressurizing unit 23, the fluid pressure is applied to the transfer unit 21 from the inside. As a result, as shown in FIG. 2C, the transfer portion 21 is bulged outward and brought into contact with the coated surface 13.
At this time, by fixing the both side edges 21e side of the transfer part 21 wider than the application surface 13 to the support part 22, the bulging amount of the transfer part 21 corresponding to the both side edges 13e of the application surface 13 is increased. Since there are fewer than the intermediate part between, the transfer part 21 may be in a state of being slightly separated at both side edges 13e of the coated surface 13 as compared with the intermediate part.

  Thereafter, the fluid pressure in the pressurizing chamber 23 a is lowered by the pressurizing unit 23. As a result, as shown in FIG. 2D, when the transfer portion 21 is separated from the coated surface 13, the adhesive 15 is transferred from the transfer portion 21 to the coated surface 13, and the adhesive 15 is applied to the coated surface 13. can do.

  After the adhesive 15 is applied to the coated surface 13 of the female member 11, the truncated cone-shaped portion of the male member 16 is inserted into the coated surface 13 of the female member 11, as shown in FIG. The outer peripheral surface 17 of the male member 16 can be adhered to the outer peripheral surface 13.

  As described above, according to the applicator 20 of this embodiment, the transfer portion 21 made of an elastic material is supported by the support portion 22, and the fluid pressure is applied from the inside of the transfer portion 21 by the pressurizing portion 23. Since the transfer portion 21 is bulged outward, the adhesive 15 is attached to the outer surface of the transfer portion 21 in advance, and the transfer portion 21 of the support portion 22 is inserted inside the coated surface 13 to transfer the transfer portion 21 with fluid pressure. Can be applied to the transferred portion 21 by bringing the transferred portion 21 into contact with the transferred portion 21.

  Here, the transfer part 21 is formed in a band shape wider than the coated surface 13 and is supported so as to be able to face the entire coated surface 13. Therefore, if the transfer part 21 is spaced apart from the application surface 13 and opposed to be swelled, the transfer part 21 can be brought into close contact with each part in a wide range of the transfer target part 21 with the same pressure. . Therefore, the adhesive 15 of the transfer portion 21 can be applied as evenly as possible over a wide range of the surface 13 to be coated, and dripping can be prevented.

  In the applicator 20 of this embodiment, the transfer part 21 is fixed to the support part 22 on the both side edges 21e side in the width direction, so that the bulge of the transfer part 21 corresponding to the both side edges 13e of the coated surface 13 is swelled. Since the amount is smaller than that of the intermediate portion, the adhesive 15 can be applied to both side edges 13e of the surface to be coated 13 in the same manner as the intermediate portion.

  Furthermore, according to the coating apparatus of this embodiment, the transfer unit 21 is bulged and brought into contact with the surface to be coated 13, and then the fluid pressure of the pressurizing unit 23 is reduced, so that the transfer unit 21 is coated with the surface to be coated. Since it is separated from 13, it can be applied more uniformly.

In addition, the said embodiment can be suitably changed within the scope of the present invention.
In the above-described embodiment, substantially the entire belt-shaped inner peripheral surface 12 having a taper inclined in the axis L direction with a constant gradient is used as the application surface 13, and the adhesive 15 is applied to the entire application surface 13 so as to have substantially the same shape. Although the example which adhere | attaches on the substantially whole outer peripheral surface 17 of the male member 16 which has this is demonstrated, the shape of the inner peripheral surface 12 of the female member 11, the to-be-coated surface 13, the outer peripheral surface 17 of the male member 16, etc. are limited at all. It is not something.

For example, the coated surface 13 may be a straight shape extending in the direction of the axis L, and in that case, as shown in FIG. 6, an applicator 20 in which the transfer portion 21 is formed in a straight cylindrical shape is used. You can also. Furthermore, the present invention can be applied to the coated surface 13 having a plurality of gradients or the curved coated surface 13, and an applicator provided with a transfer portion having a shape corresponding to them may be used.
Moreover, although the example which adhere | attaches the female member 11 used for a synchronized clutch etc. and the male member 16 was demonstrated above, the use and shape of the member to adhere | attach are not limited at all.

  Moreover, the shape of the inner peripheral surface 12 of the female member 11 and the outer peripheral surface 17 of the male member 16 may be different, and the present invention can be applied as long as it has parts that can be bonded to each other. Further, the coated surface 13 may be set on a part of the inner peripheral surface 12 of the female member 11 or may be adhered to a part of the outer peripheral surface 17 of the male member 16.

  Furthermore, in the above-described embodiment, an example in which both the coated surface 13 and the transfer portion 21 provided in a strip shape have a substantially constant width has been described. However, the present invention can also be applied to a shape whose width changes. is there. In that case, the width of each part of the transfer portion 21 can be made larger than the width of each corresponding position of the coated surface 13.

L shaft 11 female member 12 inner peripheral surface 13 surface to be coated 13e side edge 15 adhesive 16 male member 17 outer peripheral surface 20 applicator 21 transfer portion 21e side edge 22 support portion 22a frustoconical portion 22b shaft portion 23 pressure portion 23a Pressurizing chamber 23b Flow path 23c Actuator 30 Coater 31 Reservoir 32 Roll 40 Transporter

Claims (5)

An applicator for applying an adhesive to a surface to be applied provided in a belt shape on the inner periphery,
A support that can be inserted inside the coated surface;
A transfer portion made of an elastic material that is supported on the outer periphery of the support portion so as to be opposed to the entire surface to be coated, and formed in a band shape wider than the surface to be coated;
A pressurizing part provided on the support part, and applying a fluid pressure to the transfer part from the inside to bulge to the outside ,
An applicator in which the transfer unit is arranged to be opposed to each other at equal intervals in a close state over the entire circumference of the application surface in a non-bulged state .   The bulging amount of the transfer portion corresponding to both side edges of the coated surface during bulging is less than that of the intermediate portion by fixing the transfer portion to the support portion on both side edges in the width direction. The applicator described. An application method using the applicator according to claim 1 or 2,
Adhering the adhesive to the outer surface of the transfer part,
The transcription unit is inserted into the inside of the coated surface, the both side edges of the transfer portion is positioned outside the opposite side edges of the coated surface, the transfer portion and the proximity state over the entire circumference and the coated surface Are arranged at equal intervals and facing each other,
An application method, wherein the adhesive is applied to the surface to be applied by causing the transfer portion to bulge out by the fluid pressure of the pressurizing portion and contact the surface to be applied.   The coating according to claim 3, wherein after the transfer portion is bulged and brought into contact with the surface to be coated, the transfer portion is separated from the surface to be coated by reducing the fluid pressure of the pressure portion. Method. A bonding method for bonding a female member having a belt-shaped inner peripheral surface extending in the circumferential direction and a male member having an outer peripheral surface facing and abutting against the inner peripheral surface,
An adhesive method in which an adhesive is applied to the inner peripheral surface by the coating method according to claim 3, and the outer peripheral surface of the male member is inserted into and closely adhered to the inner peripheral surface.

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