JPS58224710A - Molding machine for pottery foundation - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] This invention is a ceramic fabric that can be molded by simply applying a trowel to the raw material inserted into the outer die by rotating the outer die using a drive device. This relates to molding machines.

This type of ceramic dough forming machine is generally well known as a power potter's wheel, and is conveniently used for the purpose of manufacturing circular ceramic dough.

The present invention is based on the above 1. To provide a ceramic fabric forming machine which can easily mold not only circular ceramic fabrics such as the above but also ceramic fabrics having a non-circular planar shape in the same way as the circular ceramic fabric.

Embodiments of the present application will be described below with reference to the drawings. Reference numeral 1 denotes a base body, which is composed of a frame of shaped steel or the like.

Reference numeral 2 designates bearing support frames welded to the base body 1, of which t pieces are provided as shown in FIG. Reference numeral 3 denotes bearings fixedly attached to the bearing support frame 2, and a pair of upper and lower bearings are arranged.

Reference numeral 4 denotes support frames fixed to the base body 1, and two support frames are provided as shown in FIG. Reference numeral 5 designates a guide rod whose both ends are fixed to the two support frames 4, 4, respectively, and is horizontally installed in two horizontal parallels as shown in FIG. Reference numeral 6 denotes a movable body attached to the guide rod 5.5 so as to be able to move laterally along the guide rods 5, 5, and as shown in FIG. cylinders 7.7 and these cylinders 7,
It consists of bearing support plates 8, 8 fixed to the top and bottom of the bearing 7, respectively. These bearing support plates 8.8 are formed with vertical shaft through holes 9, 9, and
Bearings 10 and 10 are fixed to each other. Reference numeral 11 denotes a rotary shaft rotatably mounted on the base body 1 and the flexible body 6, and a lower rotary shaft ν rotatably supported by the bearings 3, 3, and rotatably supported by the bearings 10, 10. It consists of an upper rotating shaft 13 in a vertical state supported by an expansion joint I5 that connects these lower and two rotating branches 13 via universal joints 14, 14. The expansion joint 15 consists of a cylindrical shaft 15a and an insertion shaft 15b fitted into a node hole of the cylindrical shaft 15a so as to be slidable in the axial direction while restricting rotation, and can change its length while transmitting rotation. 16 is a drive device for rotating the rotating shaft U, which includes a motor 17 with a transmission (hereinafter simply referred to as motor 17) fixed to the base 1, and a drive shaft of this motor 17. 17a, pulley slides 19 fixed to the lower rotating twigs, and a bell 2 [11] suspended from these pulley slides 19. Reference numeral 22 denotes ventilation holes formed in the upper and lower rotating shafts 13 and 12, respectively, and these are communicated with each other by a flexible hose. Sae is a suction device fixed to the base 1, the suction hose 5 of which is connected to the lower rotating shaft ν via the rotor IJ-pulp, and the vent hole 22 is configured to be able to apply suction force. ing. Reference numeral 27 is a spring stretched between the movable body 6 and the base body 1, and is designed to position the movable body 6 near the center of the length of the guide rods 5, 5. The main part is a container-shaped chic that is removably fixed to the upper end of the upper rotating shaft L3 by a mounting nut, into which a hollow outer mold made of plaster or the like can be fixedly mounted. This outer mold 4 is formed so that the ceramic raw material can be molded into a desired shape with its inner surface, that is, its inner surface is formed to be the same as the outer surface shape of the ceramic material desired to be molded. 31 is a mounting plate fixed to the above-mentioned upper rotating shaft 13, and a key (not shown) is attached to the mounting plate.
Rotation is stopped by. Incidentally, this mounting plate 31 may be attached to the rotation shaft 13 on the opposite side using push bolts, if necessary, as shown by the imaginary lines in FIG. This mounting plate 31 has mounting holes formed in the circumferential direction at positions that divide the circumference into equal V parts. The wing is a cam detachably attached to the mounting plate 31 so that it can rotate about the upper rotating shaft 13. As shown in Fig. 6, there is a through hole in the center position and a cam around the periphery. Attachment holes η in the radial direction are formed at the respective positions, and a driven path aSa is formed at the peripheral position by the outer surface of the protrusion that projects upward.

This driven path a is formed to have the same inner shape as the inner surface of the ceramic material desired to be molded. The driven path 3Ba of the cam 5 is positioned so that it is flush with the outer mold 9, and the mounting bolt I is inserted and reversed into the mounting hole 37.
and oak) 4) are attached to the mounting plate 31.

Note that the driven path aSa is formed of the inner surface of the protruding ridge,
A groove may be formed around the cam instead of the protrusion, and the side surface of the groove may be used.

Next, reference numeral 41 denotes a regulating member constituted by a support stand fixed on the base l and a regulation roller rotatably mounted on the support stand 41, which is in contact with the driven path aSa. Note that this regulating member C may be constituted by a fixed member fixed to the support base 41K. The kudzu is a pressing mechanism for pressing the driven path 38a against the regulating member C, and is detachably attached to the support base 41.

In this pressing mechanism C, reference numeral 45 is a support fixed on a support base d, chrysanthemum is a support rod that is slidably supported in the axial direction by 45, and a slide key (not shown) is used.
Rotation about the axis is prevented by. C is a spring receiver formed at one end of the support rod, which is a spring interposed in a compressed state between the rope and the support rod, and a presser roller rotatably attached to the other end of the support rod; As shown in the figure, the driven path 38 is brought into contact with the inner surface of the protrusion by the force of the spring C.
a is pressed against the regulating member C.

Next, in FIG. 1, (capital) is a support bracket fixed to the base body 1, and 51 is a support hole 50 of the support bracket (50).
B is fitted in a height-adjustable manner and fixed by a set screw 62, and a pair of direction regulating screws 68 and 68 facing each other are attached at positions away from the support hole 51B so as to be able to move forward and backward. . Reference numeral 54 denotes a support body rotatably fitted into the support hole 51B of the support tool 51, and includes a nozzle support piece 64a.
and a direction regulating piece s4b, and this direction regulating piece 64b is located between the direction regulating screws 68 and 58. 55
66 is a weight fixed to the tip of the knife 55, and 67 is a trowel fixed to the middle part of the knife 55. be. This trowel may be a conventionally known rotary trowel or rotary trowel.

In the case of the above structure, when it is desired to mold a ceramic dough having a non-circular planar shape (for example, a square shape), first, an outer mold is prepared that has an inner surface shape corresponding to the outer surface shape of the ceramic dough. 9 is prepared, and a cam 5 having a driven path aSa having a planar shape corresponding to the planar shape of the inner surface of the ceramic material is also prepared. It should be noted that by manufacturing the above-mentioned outer mold 4 and cam in various shapes in advance, it is possible to immediately meet the demands of the time. Next, pressing mechanism C
With the cam removed, the cam portion is positioned on the mounting plate 31, and then the pressing mechanism 6 is attached.

After that, attach the jitter to the upper end of the upper rotating shaft 13,
After that, the outer mold 4 is placed inside the chic 3. Next, the cam A is positioned so that its driven path aSa has a predetermined positional relationship with the inner surface of the outer mold ρ, that is, the planar shape of the driven path 38& is within the planar shape of the four inner surfaces of the outer mold when viewed from above. and attach it to the mounting plate 31 with the mounting bolts (screws) 40. The cam portion may be attached to the mounting plate 31 before the jitter is attached to the upper rotating shaft U.

Next, when forming the dough, when the motor 17 is driven to rotate, the lower rotating shaft ν, the expansion joint 15, and the upper rotating shaft 13 are rotated in one direction (for example, in the direction of the arrow in FIG. 3). As a result, the cam, the jitter blade, and the outer die 4 are also rotated in the same direction. When the cam portion is rotated in this way, the driven path 38a of each cam is always rotated while being pressed against the regulating member C, so that the upper rotating shaft 13 is connected to the upper rotating shaft. 13 to the portion of the driven path 387k that is in contact with the regulating member C, it is moved laterally in the direction along the guide rods 5, 5, and the rotation center of the outer mold 4 is also moved along the guide rods 5, 5. It is moved laterally in the direction along 5. Therefore, when the handle 55 is pushed down to position the trowel 57 inside the outer mold 9, the trowel 57 can draw a trajectory in the outer mold 9 that has the same shape as the driven path 38a. Therefore, as described above, the motor 17 is rotated and the ceramic raw material (materials) is placed inside the outer mold 9 along its inner surface.
In addition, after lowering the nodule 66, by shaking it sideways, the trowel 67 is applied to the ceramic raw material (material), thereby making it possible to form a ceramic dough having a non-circular planar shape.

However, when molding ceramic dough as described above, by activating the suction device U, suction force is applied to the ventilation hole 21 of the upper rotary shaft, thereby applying suction force to the inner surface of the outer mold 4. It works to absorb the moisture contained in the ceramic raw material (material) into the outer mold container and promote the molding of the ceramic dough. Furthermore, with the above configuration, by omitting the use of the cam part and making the planar shape of the driven path 3811 circular, it is possible to mold ceramic dough having a circular planar shape as in the conventional device. can.

As described above, in this invention, the outer mold 4 is rotated by the drive device, so when molding ceramic dough, the trowel is simply placed firmly on the ceramic raw material rotating together with the outer mold 4. This trowel has the effect of smoothing the raw material and making it easier to shape hollow ceramic dough.

Moreover, even if molding is performed while rotating the outer mold 4, in the case of the above molding, the rotating shaft moves laterally following the rotating cam holder, and the center of rotation of the outer mold 4 moves laterally. Even a ceramic fabric having a non-circular planar shape (for example, a square shape) can be easily molded in the same way as a round fabric.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a vertical sectional view showing the main part in cross section, FIG. 2 is a plan view of FIG. 1 with some parts omitted, and FIG. Figure 5 is a sectional view taken along line ff-N in Figure 1, Figure 5 is a sectional view taken along line ff-N in Figure 1, and Figure 5 is a sectional view taken along line ff-N in Figure 1.
FIG. 6 is a plan view of the cam, FIG. 7 is a plan view of the mounting plate, and FIG. 6 is an exploded perspective view showing the pivot portion of the handle. 1... Base body, 5... Guide rod, 6... Movable body, mouth.
... Rotating shaft, 16... Drive device, 4... Outer mold, I.
... Ceramic raw material, ah... cam, 38a... driven path,
C...Regulating member, 57... Trowel. Figure 1 5"1 Figure 3 Figure 6 37 Figure 7 Figure 8 6

Claims (1)

[Claims] The base body is equipped with a vertical rotating shaft and a drive device for rotating the rotating shaft, and a hollow outer surface is provided at the upper end of the rotating shaft so that ceramic raw materials can be molded with the inner surface of the base body. A mold is attached, and the ceramic raw material is put into the outer mold along the inner surface thereof, and the outer mold is rotated by the drive device via the rotating shaft, and in this state, a trowel is applied to the ceramic raw material. By guessing! ll A ceramic dough forming machine capable of molding ceramic dough, wherein a guide rod is installed horizontally on the base body, and a movable body is attached to the guide rod so as to be movable laterally along the guide rod, - The rotary shaft is rotatably mounted on the movable body so that it can freely move laterally along the guide rod with respect to the base, and a cam having a driven path around the rotary shaft is attached to the rotary shaft. On the other hand, the base body is provided with a regulating member that is opposed to the driven path of the cam, and when molding the ceramic dough, the control member is attached to the base body so as to be able to rotate around the rotation axis. A ceramic dough forming machine characterized in that the rotary shaft is moved laterally in accordance with a change in the distance from the rotary shaft to a portion of the driven path where the regulating member is in contact with.