JP2578047B2 - Mortar coating equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mortar coating apparatus for applying a mortar for attaching a tile to a predetermined thickness on a surface of a substrate such as an ALC (auto-reclave cured cellular concrete) plate.

[0002]

2. Description of the Related Art A process of manufacturing a tile panel in which tiles are adhered to a substrate by mortar includes a mortar application process of applying mortar to a surface of the substrate by a predetermined thickness. Conventionally,
This mortar coating step has been performed manually using a trowel. That is, after the mortar is applied in a streak shape on the substrate on the comb side of the iron, the mortar is flattened on the straight side of the iron.

[0003]

However, in order to apply mortar by hand, a considerable amount of skill is required to train the skilled person, and there is a limit to the number of processed sheets per worker. ineffective. Further, there is a case where the mortar coating thickness is changed in accordance with a change in specifications such as the shape of the back leg of the tile. However, it is difficult to quickly respond to the change in the coating thickness by hand.

The present invention has been made to solve the above problems.
It is an object of the present invention to provide a mortar coating apparatus that can apply mortar to a uniform thickness and can quickly change the applied thickness.

[0005]

Means adopted by the present invention include a transfer path for a substrate to be coated, and a coating port which is disposed above and below the transfer path so as to be movable up and down and faces the transfer path. A hopper, a coating thickness setting roller attached to the hopper and having a rotating contact surface protruding from the edge of the opening of the coating port toward the conveyance path, and a vibrator attached to the hopper. It is a mortar coating device.

[0006] The mortar coating apparatus may include a pressing tool for pressing the hopper toward the transport path. Further, the coating thickness setting roller may be disposed so as to be able to advance and retreat toward the transport path.

[0007] The hopper may be provided with an adjusting plate for adjusting the coating width of the coating port so as to move along the transverse direction of the transport path. In this case, a plurality of adjusting plates may be provided, and a forced moving device for individually moving each adjusting plate may be provided.

[0008]

When the substrate to be coated passes through the transport path, the rotating contact surface of the coating thickness setting roller comes into contact with the surface of the substrate to be coated, and a predetermined coating is performed between the surface of the substrate to be coated and the opening edge of the coating port. Form a gap. Since the hopper is arranged so as to be able to move up and down, even if the thickness of the substrate to be coated fluctuates, the hopper follows the thickness fluctuation via the coating thickness setting roller, and the coating gap is always maintained at a constant value.

The mortar supplied into the hopper comes into contact with the surface of the substrate to be coated through the coating port, and is applied with a predetermined coating thickness from the coating gap as the substrate moves. Since the fluidity of the mortar supplied into the hopper is improved and stabilized by the vibration of the vibrator, the accuracy of the coating thickness is improved.

[0010] When a pressing tool for pressing the hopper toward the transport path is provided, the hopper can be prevented from floating and a uniform coating thickness can be ensured. In addition, when the coating thickness setting roller is disposed so as to be able to advance and retreat toward the conveyance path, the coating thickness can be changed quickly.

When the hopper is provided with an adjusting plate for adjusting the application width of the application port, the application width can be easily changed.
Further, in the case where a forced moving device for individually moving a plurality of adjustment plates is provided, the application plate and the application width can be changed easily and quickly.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a mortar coating apparatus according to the present invention (hereinafter referred to as "the apparatus of the present invention") will be described based on embodiments shown in the drawings.

(First Embodiment) FIGS. 1 to 3 show a first embodiment of the apparatus of the present invention. FIG.
FIG. 2 is a side view, and FIG. 3 is a plan view. The device 1 of the present invention
A transport path R for the substrate to be coated, a hopper 2 disposed above and below the transport path R so as to be movable up and down, coating thickness setting rollers 3, 4 and 4 attached to the hopper 2, and attached to the hopper 2. Vibrators 5 and 5 are provided.

The transport path R is composed of transport rollers 8, 8,... The transport roller 8 is moved in the transport direction (arrow A).
Direction), are laid on the stands 7, 7 arranged on the left and right sides of
The substrate B to be coated is transported at an appropriate speed by forced driving. Guide guides 9, 9 are provided on both left and right sides of the transport path R (see FIG. 3).
Is provided to prevent the substrate B to be coated from meandering. The guide 9 is provided in accordance with the width of the substrate B to be coated.
The position can be changed.

The hopper 2 includes gantry 10,10 arranged on both left and right sides, and a guide shaft 1 erected on the gantry 10,10.
, And a hopper body 12 that is guided by the guide shafts 11, 11. Hopper body 12
Is a front and rear plate 1 that is inclined downward in the transport direction (the direction of arrow A).
Left and right side plates 1 for joining front and rear plates 13 and 14
The application port 16 is formed at the lower end.

The hopper body 12 includes left and right side plates 15,
The brackets 17, 17,... Each bracket 17 is provided with an insertion hole 18 through which the guide shaft 11 is inserted, and is pressed downward by a pressing tool 19 formed of a compression coil spring fitted to the guide shaft 11. On the guide shaft 11,
A pressure adjusting nut 20 for adjusting the pressing force of the pressing tool 19 is screwed. The reason why the hopper main body 12 is pressed downward is to prevent the hopper main body 12 from floating as the pressure of the mortar M supplied into the hopper main body 12 increases near the application port 16.

The hopper body 12 is raised and lowered by means of a link mechanism according to the size of the hopper body 12, although not shown, except that the hopper body 12 is guided by the guide shaft 11. It is also possible. Further, the pressing tool 19 of the hopper body 12 may employ a type of pressing with an air cylinder, although not shown, other than the compression coil spring type.

At the front of the hopper main body 12 and on both sides of the rear, coating thickness adjusters 21, 22, 22 are provided. The number of the coating thickness adjusters 21 and 22 is appropriately selected according to the width of the hopper body 12.

The front coating thickness adjuster 21 includes a bracket 23 erected from the front plate 13 of the hopper body 12 and a vertical position adjuster 24 provided on the bracket 23 so as to be able to move forward and backward.
And a coating thickness setting roller 3 pivotally supported by the vertical position adjuster 24. The coating thickness setting roller 3 has an outer peripheral surface 3 a
Is narrowed, so that the width dimension of the roller pressing trace formed on the mortar coating layer C is narrowed.

The rear coating thickness adjuster 22 includes a bracket 26 suspended from the hopper body 12 and a bracket 26.
And a coating thickness setting roller 4 pivotally supported by the vertical position adjusting tool 27.

The coating thickness adjusters 21 and 22 are rotated by adjusting the vertical position adjusters 24 and 27 so that the rotating contact surfaces 3a-1 and 4a-1 of the coating thickness setting rollers 3 and 4 have the opening edge of the coating opening 16. It protrudes from the position 16a toward the conveyance path R by a set dimension.

An appropriate number of vibrators 5 are arranged at appropriate places such as the front plate 13 of the hopper body 12. The vibrator 5 vibrates the hopper main body 12 to vibrate the mortar M supplied in the hopper main body 12, and imparts fluidity to the mortar by thixotropy change so that smooth application is performed. I do. As the vibrator 5, an appropriate type such as a type in which an eccentric cam is rotated by compressed air to generate vibration or a type in which a vibrating piece is vibrated by a solenoid is selected.

The hopper body 12 has an inside 12a
Adjusting plates 29, 2 for adjusting the coating W of the coating port 16;
9 is disposed so as to move in the transverse direction (the direction of arrow D), so that the coating width W can be changed quickly. Although the illustration of the adjustment plate 29 is omitted, the application port 1 is not shown.
It is also possible to adopt a slide plate type or the like that covers the left and right sides of 6 by an appropriate width dimension.

Above the hopper 12, a discharge port 31 of a mortar supply device 30 is arranged. Hopper 2
Below, a mortar collection conveyor 32 for receiving and collecting the non-coated mortar is disposed along the transverse direction (the direction of arrow D). The recovered mortar is returned to the mortar supply device 30.

Next, the state of mortar application using the apparatus of the present invention will be described. The transport rollers 8, 8 are driven to transport the substrate B (for example, a foam concrete plate), and the coating thickness setting rollers 3, 4, 4 abut on the surface Ba of the substrate B being transported. Hopper body 1
2 is placed and ready.

Next, the discharge port 31 of the mortar supply device 30
Supplies the mortar M to the inside 12a of the hopper body 12 by a predetermined amount. The supplied mortar M accumulates in the hopper main body 12, and the vibration of the vibrators 5, 5 improves the fluidity thereof. The mortar M adhered to the surface Ba of the substrate B to be coated has a coating thickness regulated by the front plate 13 of the hopper body 12, and becomes a mortar coating layer C having a set coating thickness.

Since the hopper 2 is arranged so as to be able to move up and down, even if there is a variation in the thickness of the substrate B to be coated, the hopper 2 follows the thickness variation via the coating thickness setting rollers 3 and 4, and Is always kept constant. When changing the coating thickness, the height position of the coating thickness setting rollers 3 and 4 is adjusted by the vertical position adjusters 24 and 27 of the coating thickness adjusters 21 and 22 so that the surface Ba of the substrate B to be coated and the coating port are adjusted. The coating gap G formed between the opening edge 16a and the opening edge 16a is adjusted.

(Second Embodiment) FIGS. 4 to 6 show a second embodiment of the apparatus of the present invention. FIG.
FIG. 5 is a side view, and FIG. 6 is a plan view. This embodiment is different from the first embodiment in that forcible moving devices 42, 42 for individually moving the adjusting plates 29, 29 disposed inside the hopper body 12 are provided, and the coating port 16 is The point is that a cover device 43 is provided to cover in the non-coating state. Except for this difference, it is substantially the same as the first embodiment,
The same reference numerals indicate the same components.

There are many types of substrates to be coated B having different widths and coating positions, such as substrates having different width dimensions and those having regions such as window openings which do not require coating. In order to deal with various types of substrates B to be coated, the coating port 1
It is necessary to quickly change the application W and the application position of No. 6. In order to respond to this request, the apparatus 41 of the present invention according to the present embodiment is provided with two sets of forced moving devices 42 for moving the adjusting plate 29.

Each forcible moving device 42 includes a feed screw 44,
A nut 45 screwed to the feed screw 44 and a servomotor 46 for driving the feed screw 44 are provided. Feed screw 4
4 is suspended above the hopper body 12 and both ends are pivotally supported by brackets 48 and 11. The nut 45 is
It is joined to an arm member 47 extending from the adjusting plate 29. Each forced moving device 42 starts and stops the servomotor 46 by a programmed signal or manually, and
Is rotated forward and backward to stop the adjusting plate 29 together with the nut 45 at a predetermined lateral feed position. The two sets of forced moving devices 42, 42 are independently controlled.

The forcible moving device 42 is not limited to the feed screw type, and although not shown, the tip of the output shaft of the air cylinder is joined to the adjusting plate 29, and the tip of the output shaft can be stopped at an arbitrary position. It is also possible to adopt an appropriate format such as a cylinder format.

The adjusting plate 29 is provided with scrapers 50 and 50 made of a rubber plate or a synthetic resin plate at the front and rear edges, and slides in a water-tight manner with the inner surface 12a of the hopper body 12, so that the scraper 50 and the inner surface 12a The mortar M is prevented from leaking out from the space.

The cover device 43 includes a slide plate 51,
An operation tool 52 such as an air cylinder for moving the slide plate 51 is provided. The slide plate 51 is disposed so as to be able to advance and retreat from a standby position (the position shown in FIG. 4) to a cover position that covers the application port 16. When the mortar application is not performed, the operation tool 52 is operated so that the cover device 43 covers the application port 16.

[0034]

As described in detail above, the device of the present invention has the following excellent effects. Since the hopper is arranged so as to be able to move up and down, even if the thickness of the substrate to be coated fluctuates, it follows the thickness fluctuation via the coating thickness setting roller and the coating gap is always maintained at a constant value. As a result, the apparatus of the present invention can form a mortar coating layer having a constant thickness, and can improve coating accuracy. The fluidity of the mortar supplied into the hopper can be improved and stabilized by the vibration of the vibrator. The device of the present invention can further improve the accuracy of the coating thickness.

When the coating thickness setting roller is disposed so as to be able to advance and retreat toward the carrying path, the coating thickness can be changed quickly. As a result, the device of the present invention can improve operation efficiency and productivity. When an adjusting plate for adjusting the application width of the application port is provided, the application width can be changed easily and quickly. As a result, the device of the present invention can improve productivity.

[Brief description of the drawings]

FIG. 1 is a cross sectional view showing a first embodiment of the device of the present invention.

FIG. 2 is a right side view showing the first embodiment of the device of the present invention.

FIG. 3 is a plan view showing a first embodiment of the device of the present invention.

FIG. 4 is a transverse sectional view showing a second embodiment of the device of the present invention.

FIG. 5 is a right side view showing a second embodiment of the device of the present invention.

FIG. 6 is a plan view showing a second embodiment of the device of the present invention.

[Explanation of symbols]

 Reference numeral 2: hopper 3, 4 ... coating thickness setting roller 3a-1, 4a-1 ... rotating contact surface 5 ... bubulator 16 ... coating port 16a ... opening edge 19 ... pressing tool 29 ... adjusting plate 42 ... forced moving device R ... transport Road

Claims (5)

(57) [Claims] 1. A transfer path for a substrate to be coated, a hopper provided above and below the transfer path so as to be able to move up and down and having an application port facing the transfer path, and a hopper attached to the hopper and the coating A mortar coating apparatus, comprising: a coating thickness setting roller whose rotation contact surface protrudes from an opening edge position of a mouth toward a conveyance path side; and a vibrator attached to the hopper. 2. The mortar coating apparatus according to claim 1, further comprising a pressing tool that presses the hopper toward the transport path. 3. The mortar coating apparatus according to claim 1, wherein the coating thickness setting roller is disposed so as to be able to advance and retreat toward the conveyance path. 4. The mortar coating apparatus according to claim 1, wherein said hopper is provided with an adjusting plate for adjusting an application width of said application port so as to move along a transverse direction of said transport path. . 5. The mortar coating apparatus according to claim 4, wherein a plurality of said adjusting plates are provided, and a forced moving device for individually moving each of the adjusting plates is provided.