JPH05146728A - Primer coating applicator - Google Patents

Abstract

PURPOSE:To cut down unnecessary expenses by uniformly coating a primer on a face plate without corroding the surface of a concrete floor, in a primer coating applicator of an adhesive on the face plate, when a wooden panel is manufactured by sticking the face plate to a frame body assembled in a lattice by using a two-pack type adhesive. CONSTITUTION:The face plate is placed on a working table 1 and is moved toward a coating roller 2 by a conveying roller 3. An underside face of the face plate is coated with a primer by a coating roller 2 while pressing the face plate from the upper surface by a pressing roller 5. The face plate coated with the primer to the under face is moved between the pressing roller 5 and a wiping roll 4 and a primer stuck to the under face of the face plate is wiped off by the wiping roll 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a wooden panel used as a building material for a prefabricated house in which a face plate is attached to a frame body in which core materials are assembled in a grid pattern, and a primer is previously attached to the face plate. The present invention relates to a primer coating device for coating.

[0002]

2. Description of the Related Art When manufacturing wooden panels used as floor panels, wall panels, etc. in prefabricated houses,
For example, first, a vertical core member and a horizontal core member are assembled in a rectangular frame shape, and vertical and horizontal auxiliary core members are assembled in a cross shape inside the frame-shaped core member to form a lattice-shaped frame body. Is manufactured, and then a face plate is attached to the side surface of the frame body with an adhesive.

In recent years, in such a means for adhering a frame and a face plate, a two-liquid mixture type instant adhesive is used as an adhesive for adhering the frame and the face plate in order to obtain the adhesive strength of the adhesive at an early stage. May apply.

This adhesive is composed of liquid A, which is called a primer, and liquid B which reacts with the primer to give adhesive strength. The primer is undercoated on the face plate,
Liquid B is generally undercoated on the upper surface of the frame.

[0005] By the way, conventionally, the primer of the primer is
A sprayer that sprays the primer onto the face plate is used.
In this method, a nozzle of a sprayer is arranged at a position facing the upper surface of the face plate, and the primer sprayed from the nozzle is uniformly applied to the upper face of the face plate.

[0006]

However, in the above-described primer applying means, a part of the primer sprayed from the nozzle is sprayed on the concrete floor surface beyond the face plate, which causes corrosion of the concrete floor surface. There is a problem to be solved, and since wasteful primer that is not applied to the face plate is generated in this manner, there is an inconvenience that the cost is increased.

The present invention has been proposed in view of the above circumstances, and an object of the present invention is to uniformly apply a primer to a face plate without corroding the concrete floor surface, and to reduce the cost. The object of the present invention is to provide a primer applying device capable of achieving the above.

[0008]

In order to achieve the above object, the present invention provides a method of manufacturing a wooden panel by attaching a face plate to a frame body assembled in a lattice shape with a two-liquid mixture type adhesive. A device for applying an adhesive primer to the face plate,
A workbench that constitutes a conveying path for the face plate, and a coating roller that applies the primer to the back surface of the face plate by immersing its lower end in a box-shaped primer tank that is provided in the middle of the work table and has an open top surface. A conveying roller that transfers the face plate placed on the work table toward the coating roller, and a primer that is disposed behind the coating roller and is applied to the back surface of the face plate by the coating roller to wipe the primer to a constant coating thickness. A wiping roller is provided, and a pressing roller for pressing the face plate from above to the applying roller and the wiping roller is disposed above the applying roller, the conveying roller and the wiping roller.

[0009]

The face plate placed on the workbench is sent out to the coating roller by the conveying roller and moves between the pressing roller and the coating roller. Then, at this time, the primer is applied to the lower surface of the face plate by the applying roller while receiving pressure from the upper surface of the face plate by the pressing roller.

The face plate having the lower surface coated with the primer moves between the pressing roller and the wiping roller, and the primer on the lower surface of the face plate is wiped off by the wiping roller.
The primer is evenly applied to the lower surface of the face plate.

[0011]

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

FIGS. 1 and 2 show a primer coating apparatus according to one embodiment. In these drawings, reference numeral 1 is a workbench that constitutes a transfer path for a face plate M, and 2 is a workbench that is carried on the workbench 1. An application roller for applying a primer to the lower surface of the face plate M, a conveying roller 3 for transferring the face plate M toward the application roller 2, and a reference numeral 4 for wiping off the primer applied to the back face of the face plate by the application roller to remove the primer on the face plate M. Uniform wiping rollers 5 are arranged at positions facing the upper portions of the coating roller 2, the conveying roller 3 and the wiping roller 4, and press the face plate M toward the coating roller 2, the conveying roller 3 and the wiping roller 4, respectively. This is a roller, and these reference numerals 1 to 5 constitute this primer coating device.

The workbench 1 is mainly composed of a support leg 1a, a frame 1b assembled on the support leg 1a, and a support roller 1c arranged on the frame 1b at equal intervals. The face plate M is placed on the support roller 1c so as to convey and support the face plate M from the left side to the right side in FIG.

On the other hand, the coating roller 2 is arranged substantially parallel to the support roller 1c of the workbench 1 with its lower end immersed in a box-shaped shallow-bottomed primer tank 6 containing a liquid primer. More specifically, it is composed of a roller portion 2a that serves as a rotation shaft and a cylindrical coating portion 2b that is externally inserted on the roller portion 2a.

The roller portion 2a is rotated by a driving device (not shown), and
The coating portion 2b is formed of a synthetic resin sponge, and its length is set to a length dimension larger than the width of the face plate.

The carrying roller 3 transfers the face plate M placed on the workbench 1 toward the coating roller 2. A sprocket 3b is attached to one end of the rotary shaft 3a, and a sprocket 7b of the drive shaft 7a of the drive motor 7 is attached. Is connected by a chain 8 and can be rotated by the drive motor 7, and the hard rubber 3 is attached to the outer periphery of the rotary shaft 3a.
The c is wound and comes into contact with the face plate M so that the face plate M can be reliably directed toward the coating roller 2.

The wiping roller 4 is disposed behind the coating roller 2 and wipes the primer applied to the back surface of the face plate by the coating roller 2 to make the primer coating thickness constant. It is composed mainly of a hard rubber layer 4b mounted on the outer circumference of the rotating shaft 4a, and the primer can be wiped off by the rubber layer 4b.

The rotating shaft 4a of the wiping roller 4
A sprocket 4c is attached to the sprocket 4c and is connected to a sprocket 2c provided at one end of the coating roller 2 through a chain 8 so as to rotate in cooperation with the coating roller 2.

The pressing roller 5 arranged above each of the rollers (applying roller 2, conveying roller 3, wiping roller 4) presses the face plate M transported on each roller from above. As shown in FIG. 2, the rotary shaft 5b is rotatably supported by the roller supporting portions 5a at both ends of the pressing roller, and the coil springs 9 urge the roller supporting portions downward. ing.

The roller supporting portion 5a is movably supported by a frame 10 shown by a chain double-dashed line in FIG. 1 through a guide column 10a so that it can move up and down.
A coil spring 9 for urging the roller supporting portion 5a is inserted around the outer periphery of a.

Using this primer coating device, a face plate M
In order to apply the primer to the plate, the face plate M to be applied with the primer is placed on the support roller 1c of the workbench 1, and the face plate M is sent out between the pressing roller 5 and the transport roller 3.

By this operation, the face plate M is sandwiched between the pressing roller 5 and the conveying roller 3 and sent out toward the coating roller 2, and moves between the pressing roller 5 and the coating roller 2 soaked with the primer. .

At that time, the face plate M is pressed by the coating roller 2 while being pressed from the upper surface by the pressing roller 5, and the primer is applied from the coating roller 2 to the lower face plate as the face plate M moves.

Then, the face plate M having the lower surface coated with the primer moves between the pressing roller 5 and the wiping roller 4,
The primer on the lower surface of the face plate is wiped off by the wiping roller 4, and the primer is uniformly applied to the lower surface of the face plate.

As described above, according to the primer applying apparatus of the present embodiment, the face plate M is transferred along the work table 1, and the primer is applied to the lower surface of the face plate M by the applying roller 2 during the transfer, and this application is performed. Since the primer can be wiped off by the next wiping roller 4 and the primer on the lower surface of the face plate M can be uniformly applied, there is no risk of eroding the concrete floor surface as compared with the primer applying means by nozzle spraying. Further, it is possible to reduce unnecessary costs due to useless primer application, as compared with the conventional spraying method.

[0026]

As described above in detail, according to the primer coating apparatus of the present invention, the primer can be automatically and uniformly coated on one surface of the face plate constituting the wooden panel. There is no risk of eroding the concrete floor surface as compared with the nozzle spraying primer application means, and it is possible to reduce unnecessary costs due to unnecessary primer application as compared with the conventional spraying method. The production cost can be reduced.

[Brief description of drawings]

FIG. 1 is a perspective view showing an outline of a primer application device.

FIG. 2 is a side view showing a main part of a primer applying device.

[Explanation of symbols]

 M face plate 1 workbench 2 coating roller 3 transport roller 4 wiping roller 5 pressing roller

Claims (1)

[Claims] 1. A device for applying a primer of an adhesive to a face plate when the face plate is attached to a frame body assembled in a lattice shape with a two-liquid mixing type adhesive to produce a wooden panel, A workbench that constitutes a conveyance path for the face plate, an application roller that applies the primer to the back surface of the face plate by immersing its lower end in a box-shaped primer tank that is provided in the middle of the work table and has an open top surface. A conveying roller that transfers the face plate placed on the work table toward the coating roller, and a primer that is disposed behind the coating roller and is applied to the back surface of the face plate by the coating roller to wipe the primer to a constant coating thickness. A wiping roller, and a pressing roller for pressing the face plate toward the applying roller and the wiping roller from above on the applying roller, the conveying roller and the wiping roller, respectively. Primer coating apparatus characterized by being arranged.