JPH03159948A - Controlled drying chamber for form involving slurry casting - Google Patents

Abstract

PURPOSE:To provide the title chamber of reduced drying space intended to make the humidity therein uniform, equipped with cubic storage-type shelves, a means for form receiving and delivery in relation to each shelf, a temperature-regulating means within the chamber and a circulating means for the chamber atmosphere. CONSTITUTION:At the center of a virtually closed controlled drying chamber 1 enclosed with a sidewall 2 and a roof 3, a wheel 12 is installed at the lower end of a vertically extended post 11, while the upper end is equipped with side rollers 13 sandwiching a pair of guide rails 6 along the roof 3, and the system is raised. A form elevator 10 is provided in such a manner that fork-shaped receiving and delivery means 14 free to advance and retreat are suspended with the respective chains 15 on the left and right sides of the post 11. Shelves 5 to put forms w thereon are arranged on both the left and right of the elevator 10. And a humidity controller 7 and a humidifier 8 are installed close to the sidewall 2, and the water atomized by the action of ultrasonic wave is fed via a hose 8a into the chamber 1. An inlet 3a for the atmosphere is opened at the roof 3, while ducts 21 each having vents 21a for the atmosphere are provided at the bottom of the chamber 1.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a slow drying chamber for gradually drying a slurry molded body.

(Conventional technology) In the sanitary ware manufacturing process, the precept-shaped body is formed by mold casting → demolding →
The process is done in the order of drying and then firing. Further, the drying process is divided into a gradual drying process and a main drying process.

After demolding, the Kai-shaped body retains a large amount of water, so normal drying disrupts the balance between drying the surface and removing moisture from the inside, causing problems such as cracks in the Kai-shaped body.

Therefore, a slow-drying room is provided to slowly dry the molded product in a humid atmosphere.

In a conventional slow-drying room, the precepts are carried into the room by a conveyor or a trolley, and the precepts are arranged on a plane and held for a predetermined period of time.

This flat-arranged slow-drying room is conventionally preferred because its height is small and the indoor atmosphere is less susceptible to draft effects, making it easier to control the humidity of the atmosphere.

(Problem to be Solved by the Invention) However, since the storage time of the precept forms is extremely long, the flat arrangement type drying room requires a large installation area, which may lead to inconveniences such as increasing the size of the precept form manufacturing factory. . Furthermore, when certain shaped objects having different drying times are dried in the same room, it is not easy to carry in and out the certain shaped objects at desired times.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a slow-drying chamber for rod-shaped objects, which has a small space and allows easy loading and unloading of rod-shaped objects.

(Means for Solving the Problems) In order to solve the above problems, the present invention provides a shelf having a space for storing a plurality of hollow bodies, and a fixed path along the front surface of the shelf.
A molded object elevating and lowering means having a receiving/delivery means that can move freely along L and move up and down and move forward and backward in the direction of the shelf, a humidifying means that adjusts indoor humidity, and an atmosphere circulation means that circulates the indoor atmosphere. Maintain a slow-drying room for molded objects.

Furthermore, it is comprised of a tact which sucks out the atmosphere from the upper part of the slow-drying chamber and discharges it to the lower part of the slow-drying chamber, which is an atmosphere circulation means, and a blower interposed in this tact.

(Function) A plurality of precepts are vertically arranged and stored in a slow-drying room using a compact elevating means.

The atmosphere is humid, and fine mist droplets try to descend, but
The atmosphere is appropriately circulated and stirred by an atmosphere circulation means. Therefore,
The homogeneous atmosphere dries the precepts in high places and the precepts in low places equally.

(Example) Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a sectional view of a slow drying chamber according to the present invention.

The slow-drying chamber l for slurry casting molded bodies (hereinafter simply referred to as the "slow-drying chamber") is a substantially airtight chamber surrounded by side walls 2 and a roof 3. In the center of this slow-drying chamber l, An elevating means 10 for raising and lowering an oval body running on a rail 4 is disposed, and shelves 5 on which oval bodies W are placed are arranged on the left and right sides of the elevating means.

The means for lifting and lowering a certain shape 10 is provided with wheels 12 at the lower end of a vertically extending post 11, and side rollers 13, 13 that sandwich the guide rail 6 attached to the roof 3 at the upper end, and stands upright, so that the post 11 can be raised and lowered to the left and right. The fork-shaped receiving/delivery means 14.14, which can move forward and backward, is attached to a chain 15.1.
There is something hanging from 5. That is, the receiving/delivering means 14 has a horizontal portion 14a having a sliding structure, and the imaginary line A
As shown in the figure, enter the center of the shelf 5.

A humidity controller 7 and a humidifier 4118 are installed beside the side wall 2, and the humidifier 8 atomizes tap water using, for example, ultrasonic action, and sends this mist into the slow drying chamber 1 through a hose 8a.

The humidity controller 7 samples the atmosphere of the slow-drying room through the tube 7a, and sends a humidifier 8 to maintain a predetermined humidity.
make it work. Note that the installation location of the humidifier 8 and the installation location of the hose 8a are not limited to those described above.

On the other hand, an atmosphere suction port 3a is opened in the roof 3 of the slow drying chamber 1, and an atmosphere discharge port 21a is opened in the lower part of the slow drying chamber l.
A duct 2l having... is arranged.

FIG. 2 is a perspective view of the atmosphere circulation means, and the atmosphere circulation stage 20 includes branch ducts 22 communicating with the suction ports 3a on the roof 3, and a collection duct 23 collecting these branch ducts. , a blower HL machine 24 connected to the outlet of the collecting duct, and a tact 21.21 extending from the outlet of the blower.

Although not shown, the temperature inside the room is controlled by well-known means such as blowing hot air into the room from outside the slow-drying room or placing a heat source inside the room.

The operation of the slow-drying chamber with the above structure will be described below.

In FIG. 2, due to the suction and discharge action of the blower 24,
The atmosphere in the slow drying room l is from the branch duct 22...→collection duct 2.
3 → blower 24 → duct 21.21, and flows out in the horizontal direction from discharge ports 21a opened in the side wall of the duct.

Therefore, a very slow upward flow is created in the slow drying chamber 1.
A portion of the flow also circulates within the room.

On the other hand, the 1,000 steps lO shown in FIG. 1 sequentially transfers or takes out a certain form W from the shelf 5 based on an external command.

In this embodiment, the receiving/transfer means 14 are arranged separately on the left and right sides of the post 11, or the precepts W can be carried in and out of the left and right shelves 5 by one receiving/transfer means. You may go. Furthermore, each shelf 5 may have a structure on which a plurality of shaped bodies W are placed, and the receiving/delivery means may also have a structure in which a plurality of shaped bodies are carried in and out at the same time.

The slow drying chamber 1 has a humid atmosphere, and fine mist droplets in the atmosphere fall naturally if left alone. However, as mentioned above, since a gentle upward flow is created in the slow drying chamber 1 by the action of the atmosphere circulation means 20, there is no risk of mist droplets accumulating in the lower part of the slow drying chamber 1.

Further, in this embodiment, the atmosphere is sucked out from a large number of suction ports 3a..., and this atmosphere is transferred to a large number of discharge ports 21a...
Since the air is dispersed and discharged from the air, the atmosphere in the slow drying chamber 1 is maintained at a uniform humidity level.

Furthermore, when the atmosphere is sucked out from the lower part of the slow-drying chamber 1 and discharged from the upper part, the gouges and foreign matter stuck in the lower part of the slow-drying chamber 1 are also sucked out and dropped from the upper part of the chamber. As a result, the atmosphere becomes dirty and there is a risk of contaminating the precepts. However, in this embodiment, since the liquid is discharged to the lower part, there is no risk of contaminating the large body.

(Effects of the Invention) As described above, the present invention has a slow-drying room for precept-shaped bodies that is a three-dimensional storage type having shelves, is equipped with a means for receiving and delivering the precept-shaped bodies to each shelf, and also adjusts the humidity in the slow-drying room. Equipped with a humidifying means and a circulation means for circulating the indoor atmosphere, ■ less space is needed for gradual drying of the precept form.

■Promote downsizing of molded body manufacturing plants.

■There is little difference in humidity between the upper and lower parts of the slow-drying chamber, allowing for uniform slow-drying of the rod-shaped body.

(2) Molded bodies with different drying times can be slowly dried in the same room, and the hollow bodies can be easily removed depending on the drying state of the molded bodies.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of a slow drying chamber according to the present invention, and FIG. 2 is a perspective view of an atmosphere circulation means. l...Slow drying chamber 3a...Suction port 0...
Formed body lifting means 14...Receiving/delivery means 20...Atmosphere circulation means 24...Blower 2l...Duct W...Molded body patent

Claims (2)

[Claims] (1) Molded object elevating and lowering means having a shelf having a space for storing a plurality of molded objects, and a receiving/transfer means that can freely travel on a fixed path along the front surface of the shelf and can move up and down and move back and forth in the direction of the shelf. A slow-drying room for a slurry cast molded product, characterized in that it is equipped with a humidifying means for adjusting the humidity in the room, and an atmosphere circulation means for circulating the atmosphere in the room. (2) The atmosphere circulating means comprises a duct for sucking out the atmosphere from the upper part of the slow drying chamber and discharging it to the lower part of the slow drying chamber, and a blower installed in the duct. Slow-drying chamber for slurry cast molded bodies.