JPH02172705A - Forming machine for pressure-forming between - Google Patents

Abstract

PURPOSE:To finish smoothly the surface of a formed plate, while the driving of belts is improved by a method in which auxiliary belts are respectively arranged in superposition on each rear surface of both belts for pressurizing in the pressure-forming part on the upper and lower belts for pressurizing, and the rollers for pressurizing are arranged on the rear surface of both auxiliary belts. CONSTITUTION:Auxiliary belts 16, 18 are respectively arranged in superposition on the rears of the belts 15, 17 of upper and lower stages for pressurizing, and thin flexible stainless steel belts are used for all these belts. In forming, forming material 33 is fed on the moving belt 17 for pressurizing from a hopper 34, and its amount is prepared into a prescribed amount by a rub cutting plate 41, and then is bent to the upper and lower belts 15, 17. The pressurizing force for the material 33 is gradually increased with pressurizing roller groups 31, 32, whereby the material is pressure-formed into a prescribed thickness, and it is cut into a prescribed length with a cutter. In such a process, since the belts are thin flexible steel belts, the driving of the belts is improved, and the belts are highly rigid in superposition, whereby they do not sink locally in each part due to the pushing force of the pressurizing rollers.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a molding machine that performs pressure molding between belts.

[Prior art]

Conventionally, as shown in the drawings, an endless belt mechanism consisting of an endless belt passed between spaced rotating rollers is disposed vertically facing each other, and the molding gap between these two belts is
The upstream part, which is the raw material supply side, is wide and the downstream part is narrow, and the powder or granular molding material supplied on the lower sheet moves to the downstream part along with the heald, and as it moves, both belts There is a pressure forming machine that gradually pressurizes the material to form a large inorganic molded plate (ceramic plate) with a thickness of several to several tens of mm.

[Problems to be solved by the present invention]

Since the heddle used in the belt-type pressure forming machine is made of steel, if the belt is thick and rigid,
Although it is suitable for pressurizing the molding material, it becomes difficult to drive the heald with the heald drive roller, and conversely, if the heddle is thin and flexible, the heald drive roller will not be able to press the heald.
Although the belt is driven well, when the molding material is pressed through the heald by the pressure roller disposed on the upper surface of the belt, the belt is locally dented at the pressure roller portion, and the belt as a whole deteriorates. It becomes wavy and the surface of the molded plate is not smooth. Therefore, it has been difficult to set the belt so that it is properly driven by the driving row and forms a smooth surface of the molding machine.

Therefore, an object of the present invention is to propose a molding machine that can solve such problems with a simple configuration.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention supplies a molding material between steel pressurizing belts arranged in parallel above and below, and In a device in which a plate-like object is formed by applying pressure with both pressure healds, an auxiliary belt is polymerized on the pressure forming part of the upper and lower pressure healds on the back side of each of the pressure healds. The device is characterized in that a pressure roller is provided on the back side of both auxiliary bells 1-.

(Operation) Pressure belts arranged in parallel at the top and bottom are run continuously, and powdered or granular molding material is supplied between these pressure belts. The material is sequentially transferred to a pressure forming section by a heddle, and is pressure formed by a pressure roller disposed in the pressure forming section via a pressure belt and an auxiliary heddle.

〔Example〕

Hereinafter, drawings showing embodiments of the present invention will be described.
1, 2, and 3, the pressure molding machine 1 includes a machine frame A and upper and lower endless belt mechanisms B and C attached to the cough machine frame.

Those endless belt mechanisms B and C are scheduled to transport the molding material! They are arranged above and below the lt mark X with a gap for pressurizing the molding material between them. The machine frame Δ above is the floor surface 2
The frame includes a lower frame 3 installed on the lower frame 3, a middle frame 4 arranged in parallel on the same frame, and an upper frame 5 shorter than the middle frame further stacked on the middle frame 4. The lower frame 3 and the middle frame 4 constitute a frame for the endless belt mechanism C on the lower side. The upper frame 5 and the middle frame 4 constitute a frame of the upper endless heald structure B.

Next, the endless heald mechanisms B and C will be explained.

Rotatable rollers 6 to 13 are each pivotally supported at both ends of each of the upper and lower frames. Of the above-mentioned rotating rollers, rotating rollers 10 to 13 located on the right side in the drawing are chain-driven by an electric motor 14, and rotating rollers 6 to 9 located on the left side (material input side) in the drawing are non-driven. ing.

15 is an endless pressure belt that is passed between a pair of outer rotating rollers 8 and 13 on the upper stage, and 16 is an endless auxiliary belt that is passed between a pair of inner rotating rollers 9 and 12. Belt, 17 is an endless pressure belt passed between a pair of rotating rows 6 and 11 on the lower stage, 18 is an endless auxiliary belt that is passed between a pair of rotating rollers 7 and 10 located on the inside. Each belt is shown with a thin and flexible stainless steel heald.

The auxiliary bells 16 and 18 are arranged on the back surfaces of the pressure belts 15 and 17 in a superimposed manner.

31 is the bell 1-15 in the upper heald mechanism B.
．． 16 is a group of multistage pressure rollers attached to the back surface of the heald 16 in the two-layered portion (pressure portion), and for example, about 30 rollers are used. Reference numeral 32 designates a similar multi-stage pressure roller group provided on the back side of the portion where the bell stitches 7 and 18 are stacked in two layers in the lower heald mechanism C. In the upper pressure roller group 31, each roller is pressed downward (to the lower pressure roller side) by a pressure device such as a hydraulic cylinder 42, and the distance between the upper and lower pressure rollers is adjusted. It can be done at will. Note that each roller of the upper pressure roller group 31 is arranged so that the gap with the corresponding lower roller 32 gradually becomes smaller as it goes in the belt traveling direction (rightward in the drawing).
Inorganic molding material 33 passing between the upper and lower pressure belts
The pressure is gradually increased by the movement of the pressure bell (15.17). 37 is a prime mover for the pressure roller; 38 is a speed reducer connected to the prime mover 37 at one end; and connected to the pressure roller at the other end.

In addition, 34 shown in FIG. 1 is a material input hopper installed on the frame on the lower stage side, and is located on and in front of the pressure belt 17 on the lower stage side to collect molding materials such as powder or granules. Inorganic molding material 33 can be supplied.

Reference numeral 35 denotes a belt straightening device attached to the pressure belt 17 on the lower stage side. The opposing gap g is set so that the unevenly deformed heald 17 is passed between the rollers 36 to be pressed and corrected into a flat shape.

In this embodiment, a plurality of rollers 36 are provided to form a roller group, but if there is no need to provide a plurality of rollers, it may be one each (one pair) on the upper and lower sides. In addition, when a plurality of rollers 36 are arranged in parallel, the mutual gap g between the rollers 36 is set so that it becomes gradually narrower as the pressure heald 7 moves. In order to increase the pressing force, a pressure means such as a hydraulic cylinder 44 may be provided.The belt straightening device 35 described above may be provided.
In this embodiment, the belt is attached to the lower pressurizing heel 7 where deformation is most likely to occur, but it is limited to the position shown in the figure if the deformation of the pressurizing belt after molding can be corrected. For example, instead of ``A'' in Figure 1, you can also use ``L'' for the mouth.

In addition, in the molding machine 1, each heald has a running direction (moving direction).
A meandering correction device 4 tilts the rotating shafts of rotating rollers 6 to 9 with respect to a frame when the belt meanders sideways to the left and right, thereby returning the belt to its normal position relative to the rotating rollers.
0, and the device is composed of a detection section that detects the position of the heald and an actuation section that tilts the axis of the rotating roller in response to a signal from the detection section.

Next, the operation of the molding machine 1 having the above configuration will be explained.

The upper and lower healds 5, 16, 17, and 18 are rotating rollers 6
-13 rotations, each is continuously moving in the direction of the arrow.

Then, the supplied molding material 33 is supplied from the hopper 34 onto the pressurizing belt 17 on the moving lower stage side.
The supplied material 33 is made constant in quantity by the scraping plate 41, and is sent to the upper and lower pressure belts 1517. The fed material 33 is applied to pressure roller groups 31 and 32.
The pressing force is gradually increased, and the material is pressure-formed to a predetermined thickness. Then, a long 33 inch non-containing molded slope is created. After this pressure-formed plate is cut into a predetermined length by a cutter 43, it is fired under predetermined firing conditions in a firing furnace such as a roller hearth kiln.

On the other hand, in the molding machine, the pressure belt 17 on the lower stage side, which has been unevenly deformed due to pressure molding, is
It is straightened into a flat shape while passing through the gap g between the holes.

Since the belt straightening device 35 does not deform the belt every time it is formed, the gap between the rollers 36 is widened to make them irrelevant to the belt when unnecessary.

(Effects of the Invention) As described above, in the present invention, the auxiliary belts are superimposed on the pressure molded portions of the upper and lower pressure belts on the back side of each of the healds for double jaw pressure. The heald and auxiliary belt can be made of flexible thin steel healds that do not interfere with driving, and the drive of these belts can be improved. Even if each of them has the above-mentioned flexibility, the polymerization results in a belt with high 1i711 properties, so the heald in this area will not be locally dented by the pressing force of the pressure roller, and the molding machine will be more flexible. The surface can be finished smooth.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a schematic side view showing a state in which a belt is installed, FIG. 2 is a front view of the molding machine with some parts omitted, and FIG. 3 is a plan view thereof. 15, 17... Pressure belt, 16.18... Auxiliary belt, 31.32... Pressure roller

Claims (1)

[Claims] A molding material is supplied between steel pressing belts arranged in parallel above and below, and the molding material is pressed by both pressing belts to form a plate-shaped body,
An auxiliary belt is arranged in a superimposed manner on the back side of each of the above-mentioned upper and lower pressure belts, and a pressure roller is arranged on the back side of both the auxiliary belts. A molding machine that performs pressure molding between belts.