JPS6232997B2 - - Google Patents

Description

Detailed Description of the Invention [Field of Industrial Application] The present invention relates to an apparatus for applying an adhesive, and more specifically, an apparatus for applying an adhesive, and more specifically, an apparatus for applying an adhesive to a member passing over an elastic roll, leaving a non-applied portion. The present invention relates to a device for automatically applying a chemical.

[Conventional technology]

The most common method of applying an adhesive to the surface of a member to be coated while moving it is to attach the adhesive to the circumferential surface of a coating roll, and then apply the adhesive to the surface of the member to be coated as it comes into contact with this roll. Things that can be transferred are known.

[Problem that the invention seeks to solve]

By the way, when applying adhesive by transfer as described above, it is difficult to equalize the amount of adhesive applied and the entire width of the roll is coated. There is a problem in that the parts are difficult to hold.

[Means for solving problems]

In order to solve the above-mentioned problems, the present invention rotatably arranges an elastic roll having an adhesive reservoir on the outer circumferential surface separated by a gap, and applies an adhesive to the lower part of the elastic roll. A pressure-sensitive adhesive tank is provided on the circumferential surface of the roll, and immediately above the elastic roll,
A pressing mechanism is disposed that presses the member to be coated toward the elastic roll, compresses and deforms the contact portion of the member to be coated of the elastic roll, and pushes out the adhesive from the adhesive pool, and A receiving rail is provided at the front on the extension line of the gap.

[Effect]

When an elastic roll whose lower part is immersed in adhesive is rotated and the excess adhesive on its outer circumferential surface is scraped off with a doctor knife, the adhesive accumulates in each adhesive reservoir and passes directly above this elastic roll in the direction of rotation. The member to be coated is pressed by a pressure mechanism, and the portion of the elastic roll that is in contact with the member to be coated is compressed and deformed.

The pressure-sensitive adhesive reservoir in the compressively deformed portion pushes out the pressure-sensitive adhesive due to the reduction in volume due to compression, and the pushed-out pressure-sensitive adhesive adheres to the member to be coated passing through it.

The gap between the elastic rolls forms a linear non-adhesive area on the workpiece, and by supporting this non-adhesive area with a receiving rail, the adhesive can be applied without damaging the adhesive-coated surface. Components can be transferred.

〔Example〕

Embodiments of the present invention will be described below with reference to the accompanying drawings.

Figure 1 shows the overall structure of the coating device, in which a pressure-sensitive adhesive A tank 2 is placed below an elastic roll 1 which is horizontally arranged so as to be rotatable, and a pressure mechanism 3 is placed directly above the elastic roll 1. The member to be coated 4 is placed at the rear in the feeding direction.
The feeder is provided with a flat supply table 5, a receiving rail 6 in the forward direction in the feeding direction, and a fan 7 and a heater 8 arranged directly below the receiving rail 6.

As shown in FIGS. 2 and 4, the elastic roll 1 has a metal roll body 10 fixed to a rotating shaft 9, and a plurality of elastic rings 11 made of rubber or the like having a hardness of about 40° are lined up around the outer periphery of the roll body 10. While fitting and fixing, forming a gap 12 of an appropriate width between each elastic ring 11,
A large number of adhesive reservoirs 13 are arranged and recessed on the circumferential surface of the elastic ring 11, and the number of elastic rings 11 is not limited to three as shown in the figure.

This elastic roll 1 has adhesive A in the tank 2 at the bottom.
A predetermined amount of the adhesive A is stored only in each adhesive reservoir 13 by immersing it in the adhesive and rotating it, and scraping off the excess adhesive adhering to the peripheral surface with a doctor knife 14.

The pressing mechanism 3 presses the member 4 to be coated, which passes directly above the elastic roll 1 in the rotational direction, onto the elastic roll 1, and compresses and deforms the surface of the elastic ring 11 that is in contact with the member 4 to be coated, as shown in FIG. and adhesive pool 1
This is for extruding the adhesive A in 3 and adhering it to the member 4 to be coated, and in order to move the member 4 to be coated forward, an endless belt structure is used or a belt conveyor is used to forcefully feed the member 4. Good too.

The receiving rail 6 is arranged along the extension line of each gap 12 in front of the elastic roll 1, and is applied to the non-coated portion B of the member 4 to be coated that has passed over the elastic roll 1. It is adapted to support the member 4.

In addition, the member 4 to be coated is a bulky base that is attached to the back surface of the carpet tile 15, and four legs are attached to the lower surface of the rectangular substrate 16 that is attached to the carpet tile 15. The surface of the substrate 16 is coated with an adhesive according to the pattern of the elastic roll 1, as shown in FIG. 5, and cut into a certain size as shown in FIGS. 6 and 7. The carpet tiles 15 and the floor surface 1 are pasted side by side on the back side of the carpet tiles 15, and the laid carpet tiles 15 and the floor surface 1
8, the elevated platform forms a cavity 19, and this cavity 19 can be used for floor heating by supplying warm air or incorporating a heat source.

The coating device of the present invention has the above-described configuration, and when the member 4 to be coated placed on the supply flat table 5 with the substrate 16 facing downward is fed onto the rotating elastic roll 1, the member 4 to be coated is subjected to the application. The elastic ring 11 is compressed by the pressure mechanism 3 and the substrate 16 is compressed as shown in FIG. As shown in FIG. 3, the non-coated part B of the member 4 to be coated that has passed over the elastic roll 1 is supported by the receiving rail 6 and pushed forward, and while passing over the receiving rail 6, the non-coated part B is pushed forward. , the adhesive A is dried to an appropriate state by the fan 7 and heater 8.

As shown in FIG. 5, the member 4 to be coated after the application process is coated with adhesive A on the surface of the substrate 16, and is used by pasting this onto a desired mating member with adhesive A. has the advantage that even if it is removed after being pasted, it can be pasted again.

〔effect〕

As described above, according to the present invention, an adhesive reservoir is provided on the circumferential surface of the elastic roll, and by pressing the member to be coated and compressively deforming the elastic roll, the adhesive is extruded from the reservoir and applied to the member to be coated. As a result, the fixed amount of adhesive can be applied automatically, and costs can be reduced by saving labor and improving efficiency of adhesive application work.

In addition, since the elastic rolls are separated by gaps, it is possible to create a linear non-applied area on the adhesive coating surface, and by supporting this non-applied area with a receiving rail, the adhesive surface of the coating agent can be damaged. It is possible to take out and feed the member to be coated without having to do so.

[Brief explanation of the drawing]

Fig. 1 is a longitudinal sectional front view showing the coating device of the present invention in a coating state, Fig. 2 is an enlarged sectional view of the elastic roll portion in the same as above, Fig. 3 is a longitudinal sectional side view of the receiving rail portion, and Fig. 4 is an elastic Front view of roll, 5th
The figure is a perspective view of the member to be coated, FIG. 6 is a longitudinal sectional view of a carpet tile using the member to be coated, and FIG. 7 is a partially cutaway plan view of the same. 1... Elastic roll, 2... Tank, 3... Pressure mechanism, 4...
Member to be coated, 5... Supply flat table, 6... Receiving rail, 11
...Elastic ring, 12...Gap, 13...Adhesive pool,
14...Doctor knife.

Claims (1)

[Claims] 1. An elastic roll having an adhesive reservoir on the outer peripheral surface separated by a gap is rotatably arranged, an adhesive tank is provided at the bottom of this elastic roll for supplying adhesive to the peripheral surface of the elastic roll, and the above-mentioned Just above the elastic roll,
A pressing mechanism is disposed that presses the passing member toward the elastic roll, compresses and deforms the contact portion of the elastic roll to the member to be coated, and pushes out the adhesive from the adhesive reservoir. An adhesive applicator with a receiving rail located on the extension line of the gap at the front in the feeding direction.