JPS6127938Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention relates to the structure of a hood that is installed in series with a tile glazing machine, and more specifically, a hood that is installed at the entrance and exit of the glazing machine that sprays glaze onto the tile substrate. This invention relates to an improvement in the structure of a hood that effectively sucks out glaze dust floating in the air.

A glaze is applied to the tile base for decoration and other surface protection purposes, but when producing tiles in large quantities, the tiles are carried on a conveyor and the conveyor is passed through a glazing machine. The glaze is now applied on a regular basis. This glazing machine forms a sealed space consisting of a chamber surrounded by a casing, and glaze is sprayed from a glaze injection nozzle swingably disposed above this chamber, and the glaze is carried by a conveyor and passes through the chamber. The glaze is applied evenly to the tiles. In this case, the glaze is sprayed from the front and rear openings of the glazing machine and scattered around, so a hood is usually provided to protect the working environment.

By the way, conventional hoods consist of a kind of cover made by bending a steel plate or galvanized iron plate into a channel shape, and this is attached externally to the opening of the glazing machine to prevent fine dust of glaze from scattering in the hood. However, this has the following drawbacks.

Since the hood is made of iron plates, etc., the glazed state of the tiles carried on the conveyor passing under the hood cannot be visually confirmed from the outside.
This has become a bottleneck in quality control.

Since there are many types of glazes, it is necessary to change the glaze from time to time depending on the properties of the tiles, but in this case the hood must be removed to remove the previously used glaze. However, conventional hoods are troublesome to remove, requiring a lot of time and trouble. Additionally, in connection with this, it has become an obstacle when adjusting and repairing various machines such as conveyors located below the hood.

Because the hood is made of iron-based metal, it is prone to rust, and iron rust can flake off and adhere to the tiles.
This caused the occurrence of defective products.

The present invention was devised in view of the drawbacks of the hoods of glazing machines according to the prior art, and it is possible to ensure thorough quality control by making it possible to easily inspect the inside of the hood. The purpose is to provide an improved hood structure that allows

In order to achieve this purpose, the hood for a tile glazing machine according to the present invention is a tile glazing machine in which a glazing nozzle is arranged in a casing installed across a conveyor on which a tile base is placed and conveyed in one direction.
A plurality of ribs spanning the conveyor are arranged adjacent to the opening of the glazing machine, and a transparent synthetic resin sheet defining a tunnel-shaped space formed by the ribs is detachably attached to the ribs. The interior of the space is communicated with a negative pressure source through an exhaust pipe which is attached to the synthetic resin sheet and is detachably connected to an exhaust hole provided through the synthetic resin sheet.

By configuring the hood according to the present invention as described above, all the drawbacks of the prior art described above are solved, and there are benefits such as extremely easy internal inspection and a reduction in the rate of defective tiles. I got a great effect.

Next, the hood for a tile glazing machine according to the present invention will be described in detail below using preferred embodiments and with reference to the accompanying drawings. In the accompanying drawings, the glazing machine designated by reference numeral 10 has a box-shaped chamber surrounded by a casing with a roof at the top, and has a long beam member 14 with a U-shaped cross section supported horizontally by supports 12. Multiple units are installed on the top at appropriate intervals.
Inside the glazing machine 10, a net conveyor 16 for carrying and conveying the tile base material is horizontally arranged in the lower part.
This conveyor 16 includes rollers 1 rotatably disposed at appropriate intervals between the pair of girders 14 disposed opposite to each other.
8 and is configured to run horizontally by rotation of the drive wheels 20. Above the interior of the glazing machine 10, as shown in FIGS. 2 and 3, a glazing nozzle 22 for distributing glaze is swingably disposed. That is, this glazing nozzle 22 is substantially made of a tubular body, and this tubular body is disposed horizontally on the upper part of the glazing machine 10, and its both ends are pivotally supported by bearings 24, 24. Glaze injection holes 26 are bored at appropriate intervals. Further, one end of the tube is closed, and the other end is made to protrude outward from the casing of the glazing machine 10 as shown in FIGS. 2 and 3, and is connected to an external hose 30 ( This is connected to a glaze storage tank (not shown), which supplies liquid glaze to the nozzle 22. A link rod 32 projecting in the radial direction is fixed to the outwardly projecting tube portion of the glazing nozzle 22, as shown in FIG. A motor 36 with a speed reducer is disposed, and the link rod 32 is brought into engagement contact with a pin 42 protruding from a disk 40 fixed to a speed reduction shaft 38 of the motor 36, whereby the glazing nozzle is activated when the motor 36 rotates. 22 can be swung at a predetermined angle α. This allows the glaze to be sprayed extremely uniformly within the glazing machine 10.

The hood according to the present invention is disposed adjacent to the openings formed at the front and rear of the glazing machine 10 configured as described above. In other words, a pair of girders 1 placed opposite each other
4, 14, a tunnel-shaped rib member 44 is installed so as to straddle the conveyor 16 as shown in FIG.
An appropriate number (three in this embodiment) are fixed upright at predetermined intervals. Since this rib member 44 serves as an internal framework that supports the synthetic resin sheet described later, it is recommended to use a metal material that will not be corroded by glaze or the like and will not rust. Standard flat iron, round steel, synthetic resin pipes, etc. may also be used. Next, an exhaust pipe mounting plate 46 is fixedly arranged at a predetermined position on one side of the plurality of rib members 44. A predetermined number of through holes are bored at appropriate intervals in this exhaust pipe mounting plate 46, and an exhaust pipe connecting pipe 48 is fitted and fixed into these through holes as shown in FIG. (To which the exhaust pipe described later is connected). A synthetic resin sheet 50 is removably attached to the tunnel-shaped framework constituted by the rib member 44. That is, a soft and highly flexible long transparent synthetic resin sheet 50 is prepared, and a mounting member 52 made of an angle member with an L-shaped cross section is fixed to one end of the sheet, and this mounting member 52 is shown in FIG. As shown, it is attached to the girder member 14 having a U-shaped cross section so that it will not come off. Then, the synthetic resin sheet 50 with one end attached to the girder member 14 is turned over in the direction of the arrow shown in FIG. 4 to completely cover the frame composed of the rib members 44. An exhaust hole 54 is provided in the synthetic resin sheet 50 at a location corresponding to the pipe 48, so that the pipe 48 protrudes outward through the exhaust hole 54 when the sheet is attached. In addition, a flat weight 56 is arranged and fixed at the other end of the synthetic resin sheet 50 (that is, the end where the mounting member 52 is not provided), and the synthetic resin sheet 50
When the synthetic resin sheet 50 is attached to the rib member 44, the synthetic resin sheet 50 is stably tensioned and fixed on the rib member 44 by the weight of the weight 56. Of course, this weight 56 is employed as one means for tightly fixing the synthetic resin sheet 50 onto the frame, and other suitable fixing means such as a snap spring may be employed.

In this way, the synthetic resin sheet 50 is attached to the rib member 44.
After forming a hood that defines a tunnel-like space inside, one end of a flexible exhaust pipe 58 formed with a bellows part is connected to the pipe 48, as shown in FIG. In addition, the other end of this exhaust pipe 58 is
The exhaust main pipes 60 are horizontally supported by the pillars 12 and connected to a negative pressure source (not shown), and are connected to branch pipes 62 corresponding to the exhaust main pipes 60, respectively. In addition,
It is preferable that the exhaust pipe 58 is provided with a damper (not shown) for controlling the amount of suction air.
Further, the net conveyor 16 extending in the longitudinal direction below the hood and glazing machine 10 has a ship bottom-shaped saucer 64 below the upper net conveyor 16, as shown in FIGS. 2 and 4. The glaze that drips as droplets after glazing is collected in this tray 64 and discharged to the outside via a drain 66. Note that reference numeral 68 in the figure indicates a tile that is glazed and conveyed on the conveyor 16. In addition, as shown in FIG. 2, a synthetic resin sheet 5
A gap is left in front of the tunnel-shaped hood formed by 0 to allow the conveyor 16 carrying the tiles 68 to freely run, and the other part is closed by the closing plate 70.
The inner space defined by the inner space is covered with the inner space so as to facilitate the formation of negative pressure.

Next, the functions and effects of this embodiment will be explained.
The glaze sprayed from the oscillating glazing nozzle 22 in the glazing machine 10 is evenly applied to the tile substrate 68 carried on the conveyor 16, which tile 68 is then placed adjacent to the opening 10 of the glazing machine. It passes together with the conveyor 16 through the arranged hood according to the present invention. At this time, the fine dust of the glaze scattered in the glazing machine 10 enters the hood through the opening of the glazing machine 10 and stays there, but the exhaust gas that communicates with the exhaust main pipe 60 connected to a negative pressure source By sweeping the inside of the hood through the pipe 58, this glaze dust is efficiently sucked and removed to the outside. Moreover, since the hood of this embodiment forms a space surrounded by the synthetic resin sheet 50, the saucer 64 and the closing plate 70 disposed at the lower part of the interior, it is easy to create negative pressure inside, and when suction is performed, This has the advantage that only a small amount of air is required.
Therefore, a model with a small capacity can be selected as the exhaust fan used as the negative pressure source, which reduces equipment costs and contributes to energy saving. Furthermore, the synthetic resin sheet 50 constituting the hood cover can be easily peeled off from the rib member 44 to fully open the inside of the hood as shown in FIG. can be done extremely easily. As a result of being able to easily open the inside of the hood in this way, there is an advantage that daily inspection and repair of internal equipment such as a conveyor is also simple.
In addition, since the hood is formed in an arched shape, even if the fine particles of glaze that stays inside the hood condense and adhere to the inner surface of the synthetic resin sheet, this glaze will flow down along the inner surface of the sheet, resulting in so-called "dropping". Since there is nothing to do, there is no possibility of producing defective products such as tiles after glazing. Further, since the hood is made of a synthetic resin sheet, rust does not occur, and therefore, there is no possibility that rust will flake off on the tiles and cause product defects. In addition, since this synthetic resin sheet is made transparent, the glazed state of the tiles carried by the conveyor inside the hood can be visually observed from the outside at any time, which has the effect of further improving product quality control. play.

The hood for a tile glazing machine according to the present invention has been described above with reference to preferred embodiments, but the illustrated embodiments are for illustrative purposes only, and the present invention is not limited to these embodiments. The idea in this case is
Many other modifications may be made within the spirit of the invention.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway side view of the hood according to the present invention placed adjacent to a tile glazing machine, Fig. 2 is a partially cutaway perspective view of the arrangement shown in Fig. 1, and Fig. 3 is a tile glazing machine. A fourth schematic explanatory perspective view showing an example of a swinging mechanism of a glazing nozzle used in a glazing machine.
The figure is a schematic explanatory perspective view showing the internal structure of the hood according to the present invention. 10: Glazing machine, 12: Post, 14: Girder material, 1
6: Net conveyor, 18: Roller, 20: Drive wheel, 22: Glazing nozzle, 24: Bearing, 26: Glaze injection hole, 28: Rotary seal, 37: Hose, 32: Link rod, 34: Bracket, 3
6: Motor, 38: Reduction shaft, 40: Disc, 42:
Pin, 44: Rib member, 46: Exhaust pipe mounting plate, 4
8: Exhaust pipe connection pipe, 50: Synthetic resin sheet,
52: Mounting member, 54: Exhaust hole, 56: Weight, 5
8: flexible exhaust pipe, 60: exhaust main pipe, 62: branch pipe, 64: saucer, 66: drain, 68: tile,
70: Occlusion plate.

Claims (1)

[Scope of utility model registration request] In a tile glazing machine in which a glazing nozzle is disposed in a casing installed across a conveyor on which tile substrates are placed and conveyed in one direction, a plurality of ribs straddling the conveyor are arranged adjacent to an opening of the glazing machine. At the same time, a transparent synthetic resin sheet defining a tunnel-shaped space constituted by the ribs is removably attached to the ribs, and can be attached and detached to an exhaust hole provided through the synthetic resin sheet. A hood for a tile glazing machine, characterized in that the space is communicated with a negative pressure source through an exhaust pipe connected to the hood.