JPH0369313A - Manufacturing line for sanitary earthenware - Google Patents

Abstract

PURPOSE:To contrive a production increase of a molded body by enabling continuous operation of a cast molding machine, by a method wherein a cast molding machine and a working stage applying work to a molded body are connected by a main conveyor with each other and a drying preventive chamber reserving the molded body at specific humidity is provided between an outlet of the cast molding machine and an inlet of the work stage. CONSTITUTION:A directional conversion of a molded body is performed toward a subconveyor 6 by working an elevating rest 5 and thinning-out cylinder 7 cooperatively and the molded body is sent into a drying preventive chamber 10a little before a fixed time rest. The inside of the drying preventive chamber 10 is kept at moisture of about 90% with an action of a controller 17 and an atmospheric temperature is the normal temperature. Although the atmospheric moisture varies a little since a door is opened for taking in or out of the molded body, the same is kept at least at 80% and the molded body reserved into the drying preventive chamber 10 is kept at almost the same condition with that at an outlet of a molding machine whose surface is wetted. At the time of reopening of a work stage operation after the fixed time rest, actions of the elevating rest 5 and thinning-out cylinder 7 are interrupted and the molded body from the cast molding machine 2 is sent directly into the work stage 4. In the case where an opening is generated in a raw of the molded bodies to be sent directly, the reserved molded body is extracted from the drying preventive chamber 10, returned to the main conveyor 3 from the subconveyor 6 and sent to the work stage 4.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in sanitary ware production lines.

(Prior Art) Sanitary ware, such as toilet bowls and washbasins, is manufactured using a slurry casting method.

For example, in the mud removal casting molding method disclosed in Japanese Patent Publication No. 64-3645, the demolded molded body is transferred to the main conveyor (28
) and transferred to the next process by a main transfer conveyor (not shown).

In the cast molding method described above, small holes are not formed due to the mold, and in the next processing stage, processing is carried out by robots or fine adjustments are made by hand.

The molded body is made of hydrated clay, and as it dries naturally, the surface hardens, making the above-mentioned processing difficult. Therefore, the processing stage must be installed near the outlet of the casting machine.

(Problem to be solved by the invention) Therefore, the production volume of the casting machine had to be balanced so as not to exceed the processing capacity of the processing stage, and production had to be stopped especially during lunch breaks and at night. .

On the other hand, with the recent trend towards increased production, there have been many calls for continuous operation of casting molding machines, and a countermeasure has been awaited.

(Means for Solving the Problems) In order to meet such demands, the present invention provides at least 8 molded bodies between the outlet of the casting machine and the processing stage.
It is characterized by having a dry-proof room for storing molded bodies in an atmosphere of 0% humidity.

Furthermore, the dry-proof room is characterized by being provided with a sub-conveyor for arbitrarily thinning out the molded bodies on the main conveyor or returning the molded bodies to the main conveyor, and being arranged on a separate line from the main conveyor.

(Function) If a reason occurs that the molded body cannot be processed in the processing stage, the molded body produced by the casting machine is stored in the dry room.

The molded body can be extracted from the dry room at an appropriate time and sent to the processing stage.

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

FIG. 1 is a sanitary ware manufacturing line diagram according to the present invention.

The sanitary ware production line 1 includes a casting machine 2 similar to that described in the conventional technology, and an outlet 2a of these machines.
A main conveyor 3 which faces the molded body and carries it out to the next process, and a processing stage 4.4 provided on the downstream side of this main conveyor.
and constitute the main line.

The molding machine outlet 2a... and the inlet 4a of the processing stage 4
A lifting table 5 is interposed between the main conveyor 3 and a sub-conveyor 6 extending from the lifting table 5 in a direction perpendicular to the main conveyor, and this sub-conveyor extends to the dry room 10. 7
is a thinning cylinder.

Figure 2 is a cross-sectional view of the dry-proof room, and the dry-proof room 10 is formed into a rectangular parallelepiped by a frame 11 made of angle iron and a transparent acrylic plate 12 bolted to the frame. This is a room where Inside thereof, there are brackets lla erected from the frame 11, a free roll 13 rotatably supported by Ila, and a chain with claws 15a for moving the chestnut 14 as a holder on which the molded body W is placed. 15, with a closed door (not shown) in front, and a humidifier 16 on the ceiling.
Equipped with:

The humidifier 16 is configured to turn water supplied through a hose 16a into mist using ultrasonic waves or dew blowing, and spray the mist from a nozzle tab at the bottom. This humidifier is controlled by a controller 17 which manually receives a signal from a humidity sensor 17a.

The functions of the sanitary ware manufacturing line and dry room constructed as described above will be described below.

In FIG. 1, molded bodies molded in slurry molds (not shown) from casting machines 2 are placed one after another on the main conveyor 3 with the receivers placed on chestnuts 14.

The molded bodies are sent to the processing stage 4 on the main conveyor 3,
Here, small holes are made, the shape is modified, and parts are pasted, and the product is transferred to the right side of the drawing for the next drying process. The main conveyor 3 carries out molded bodies intermittently, that is, in tact, in consideration of the work.

A little before the scheduled time, the elevating table 5 and the thinning cylinder 7 work together to change the direction of the molded bodies to the sub-conveyor 6,
The molded body is sent to the drying room 10.

The inside of the dry room 10 is kept at about 90% humidity by the action of the controller 17. The ambient temperature was room temperature. The screen is opened to take in and take out the molded bodies, and this causes the atmospheric humidity to change slightly, but it is maintained at at least 80% humidity.

As a result, the surface of the molded product stored in the dry chamber 10 is maintained in a moist state, that is, in almost the same state as at the exit of the molding machine.

When work on the crafting stage resumes after the regular ceremony, the lifting platform 5
Then, the operation of the thinning cylinder 7 is interrupted and the molded body from the casting machine 2 is sent directly to the processing stage 4.

When there is a vacant space in the row of directly delivered molded bodies, the stored molded bodies are extracted from the dry room 10 according to the working capacity of the crafting stage, returned to the main conveyor 3 from the sub-conveyor 6, and sent to the crafting stage 4. .

FIG. 3 shows another embodiment of FIG. 1, 20 is a dog-shaped dry room, and the configuration is the same as 10 above, but the conveyors 21 in the room are double rows. By making the conveyor connectable with the horizontal conveyor 22, the casting machine 2...
・Has a storage capacity for 8 to 12 hours of production.

This large dry room 20 is suitable for storing molded bodies produced at night. In the case where the drying room 10 is used during the lunch break and the drying room 10 and the large drying room 20 are used at night as shown in Fig. 3, the operation of the large humidifier in the large drying room and the conveyor 21 By limiting the operation of ゜22 to the required time, it is possible to prevent wastage of electrical energy.

In this embodiment, the drying room 10.20 is provided on a separate line from the main conveyor 3, but the invention is not limited to this, and the drying room 10 may be interposed in the main conveyor 3, for example.

(Effects of the invention) As described above, in the present invention, a dry-proof room is installed in the sanitary ware manufacturing line, so it is not directly related to the processing capacity of the processing stage, and the casting machine can be operated continuously. As a result, production of molded bodies can be increased.

[Brief explanation of drawings]

Fig. 1 is a diagram of the sanitary ware production line according to the present invention, Fig. 2 is a sectional view of a dry room, and Fig. 3 is another embodiment of Fig. 1. Sanitary ware production line 2... Casting Molding machine 3...Main conveyor 4a...Working stage entrance 2a...Molding machine outlet 4...Working stage lo...Sub conveyor

Claims (2)

[Claims] (1) A casting machine equipped with a slurry mold and a processing stage for processing the molded product are connected by a main conveyor, and a molding machine is connected between the outlet of the casting machine and the entrance of the processing stage. A sanitary ware production line characterized by being provided with a dry-proof chamber for storing molded bodies in an atmosphere of at least 80% humidity. (2) The dry-proof room is provided with a sub-conveyor that arbitrarily thins out the molded bodies on the main conveyor or returns the molded bodies to the main conveyor, and is arranged on a separate line from the main conveyor. The sanitary ware manufacturing line described in item 1.