JPH01154709A - Extrusion molding device for tile base - Google Patents

Abstract

PURPOSE:To enable molding of a large number of sheets of tiles provided with grooves having sectional forms where they possess sufficient widths and depths on sticking surfaces to a wall and the interior is wider than an opening in a process at a time, by a method wherein a plurality of holes possessing predetermined sections are opened in paste of a rectangular section to be extruded by a core comprised of a plurality of bars arranged with a projected plane of an upstream side extrusion port and the paste of the rectangular section is sliced off into predetermined thickness with a metallic line provided on a specific position. CONSTITUTION:Paste, which has been sent with pressure within a mouth pipe 2 by a screw 11, is spread in a longitudinal direction and moved forward while the same is being compressed in both side directions. The paste is run along a bar 53 by passing through a fitting plate 51 of a core, passed through the inside of a rectangular frame part 63 while the same is being compressed in a longitudinal direction also by guide lines 61, 62 and extruded through an extrusion port 4 by turning paste pillar of a rectangular section. The same is sliced off into fixed thicknesses with a piano wire 7 in succession and made a laminated body 8 with a cutting bar 12. The metallic wire 7 is stretched outside of an extrusion port 4 in a parallel state in both the side directions to the middle position between a position, where the metallic wire 7 crosses the center line of each bar 53, and the foregoing center line.

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to the extrusion molding of tile fabric used mainly for wall decoration, and in particular, the grooves into which mortar, which is an adhesive, enters the joint surface with the wall. This invention relates to an extrusion molding device suitable for mass production of tile fabric.

[Prior art] Tiles that are fixed to a wall are made by pushing out the kneaded soil from a kneading machine through the extrusion port of a nozzle attached to the outlet of the kneading machine, and then pushing it out in parallel at predetermined intervals on the outside of the nozzle. The tile fabric is manufactured by slicing it to a certain thickness using piano wire stretched over a wall, cutting it to a certain length to form a tile fabric, then drying and firing the tile fabric.

In addition, this type of tile has grooves on the back side, which is the surface that adheres to the wall, and those without grooves.Tiles without grooves have less bonding force with mortar, so they have less earthquake resistance and impact resistance. There are low drawbacks.

[Problems to be Solved by the Invention] However, with conventional extrusion molding, it has not been possible to form grooves with sufficient width and depth on the surface that is fixed to the wall. Manufacturing had to rely on press molding, which requires expensive manufacturing equipment. Furthermore, even with this press molding, since the grooves were formed by die-cutting, the cross-sectional shape was wide at the entrance and narrow at the back, reducing its contribution to the bonding strength.

The purpose of the present invention is to simultaneously produce a large number of tiles in one process by extrusion molding, which have sufficient width and depth for the surface to be fixed to the wall, and have grooves with a cross-sectional shape wider than the entrance. To provide an extrusion molding device for tile fabric that can be molded.

[Means for Solving the Problems] In order to achieve the above object, the present invention has a rectangular outlet on the side of the clay mixing outlet of the clay mixing machine, and the cross-sectional shape gradually changes from circular to rectangular. A mouth tube whose area gradually decreases is attached, a mouthpiece having a rectangular extrusion port smaller than the exit surface of the mouth tube is attached to the outlet of this mouth tube, and a mouth tube is provided within the projection plane of the extrusion port on the exit side of the mouth tube. , a plurality of rods with a rectangular cross section facing the extrusion direction of the mixed soil and extending to the extrusion port,
Attach cores arranged in parallel in a predetermined arrangement, and located on the outside of the extrusion port, close to the end face of each rod, and located midway between the metal wire intersecting the center line of each rod and the center line. A configuration was adopted in which metal wires were stretched in parallel and a guide surface was provided for making the clay advance straight through the extrusion port.

[Function and Effects of the Invention] The tile fabric extrusion molding device of the present invention is capable of molding clay having a rectangular cross section that is pressurized by a clay kneading machine and extruded from an extrusion port.
Holes with a plurality of predetermined cross sections are made using a core made of a plurality of rods arranged in the projection plane of the upstream extrusion port, and metal wires are placed at positions intersecting the center line of the holes and at intermediate positions between the center lines. The clay having a rectangular cross section is sliced to a predetermined thickness, and a tile fabric is extruded and molded. As a result, a groove corresponding to half of the cross-sectional shape of the rod can be formed on the back surface of the tile fabric, which is the surface to be fixed to the wall. Furthermore, when this groove is sliced with a metal wire, it is deformed depending on the diameter of the metal wire so that the width at the entrance of the groove becomes narrower than the width at the back of the groove.

That is, according to the extrusion molding device for tile fabric of the present invention, extrusion molding with excellent productivity can be performed, and a wide base having sufficient width and depth and excellent bonding properties with mortar, which is an adhesive, can be formed. Tile fabric with grooves can be manufactured. By increasing the size of the extrusion opening, the number of core rods, and the number of metal wires, it is possible to extrude and mold a large number of tile fabrics in one process. In addition, since a guide surface is provided between the extrusion port and the metal wire, it is possible to prevent the molded product from bulging after extrusion, and it is possible to smoothly extrude and mold a laminate of many tile fabrics with accurate dimensions. .

[Example] Next, the present invention will be explained based on embodiments shown in the drawings.

1 indicates the outlet side of the vacuum clay kneading machine, and 11 indicates a screw for kneading and extruding the clay installed inside the clay kneading machine.
2 is a mouth pipe which has a rectangular outlet surface 21 that is wide in the vertical direction and narrow in the horizontal direction, and whose cross-sectional shape gradually changes from circular to rectangular and whose cross-sectional area gradually decreases, and which constitutes the outlet of the clay kneader. There is.

Reference numeral 3 denotes a mouthpiece having a rectangular extrusion port 4 smaller than the outlet surface 21 of the mouth tube 2, and is fixed to the outlet surface 21 of the mouth tube 2. Reference numeral 5 denotes an iron core, which includes a belt-shaped mounting plate 51 fastened to a pair of flanges 22 protruding oppositely from each other in the mouth pipe 2 and fixed perpendicularly to the axis of the clay kneading machine, and a wedge-shaped core. The tip portions 52 are fixed to both sides of the mounting plate 51 in a pair, and the rods 53 have a rectangular cross section and are arranged in the projection plane of the extrusion port 4. A predetermined pair (five pairs in this embodiment) of the rods 53 are arranged in parallel at a predetermined interval so as to face the extrusion direction of the clay and extend inside the extrusion port 4 .

In this embodiment, the cap 3 has a rectangular hole 31 in the center, a flange plate 33 whose outer periphery serves as a mounting surface 32 to the outlet surface 21 of the mouth tube 2, and a cap body 6 fixed to the flange plate 33. It consists of.

The cap body 6 includes guide strips 61 and 62 that are inserted into both longitudinal (vertical) corners of the rectangular hole 31, a rectangular frame portion 63 that constitutes an exit side guide, and a flange portion 64 for fastening to the flange plate 33. It consists of 65.

The inner peripheral surface of the rectangular frame portion 63 has a rectangular shape, and the extrusion port 4
It has a predetermined length and serves as a guide surface for preventing the bulging of the pressed soil pushed out from the extrusion port 4 under pressure. The length of this guide surface is preferably at least 20 mm, and it is also desirable to provide a slope at the corner on the entrance side to promote smooth flow of the mixed soil. are sloped surfaces 61A and 62A whose interval narrows toward the exit side.

Reference numeral 7 denotes a metal wire (piano wire) for slicing the extruded clay into equal thickness, and it is located outside the extrusion port 4, close to the end face of each rod 53, and connected to the center line of each rod 53. They are stretched parallel to each other in the left-right direction at intersecting positions and at intermediate positions between the center lines.

Next, we will explain the operation of this tile fabric extrusion molding device.

The drilled soil forced into the mouth pipe 2 by the screw 11 spreads in the vertical direction within the mouth pipe 2 and moves forward while being compressed in the left and right directions. In order to attach the core, the dough passes through the plate 51, along the rod 53, is compressed in the vertical direction by the guide strips 61 and 62, passes through the rectangular frame 63, and is discharged from the extrusion port 4 into a dough having a rectangular cross section. It becomes a pillar of earth and is pushed out. Subsequently, the sheet is sliced to a constant thickness using a piano wire 7 stretched outside the extrusion port 4. Next, cutting machine 12
The tile fabric is cut into a predetermined length to form a laminate 8 of ten tile fabrics.

As shown in FIG. 4, the tile fabric laminate 8 formed in this way has a hole with a rectangular cross section formed inside the drilled clay by the core rod 53, and the center of the hole and the center of each hole. Each tile fabric 81 is cut by the metal wire 7 at the middle.
has two grooves 82 and 83 each having a substantially rectangular cross section on one surface thereof. Furthermore, when the grooves 82 and 83 are cut with a metal wire, the cross-sectional shape of the grooves 82 and 83 becomes narrower at the entrance than at the back.

Next, the laminate 8 is transported to a drying chamber by the conveyor 13, dried, and then fired in a combustion furnace.

[Brief explanation of the drawing]

FIG. 1 is a front sectional view of the extrusion port of the tile fabric extrusion molding apparatus of the present invention, FIG. 2 is a plan sectional view thereof, and FIG.
The figure shows the assembly, and FIG. 4 is a perspective view of the extrusion-molded tile fabric. In the diagram: 1... Exit side of vacuum clay kneading machine 2... Mouth pipe of tile fabric extrusion molding device 3... Mouthpiece 4...
・Extrusion port 5... Core 6... Cap body 7.
・・Metal wire

Claims (1)

[Scope of Claims] 1) A mouthpiece having a rectangular extrusion port smaller than the outlet surface of the mouth pipe is attached to the outlet of the mouth pipe constituting the mixing soil outlet part of the soil kneading machine, and the outlet side in the mouth pipe A core made of a plurality of rods arranged in a predetermined arrangement in parallel, facing the extrusion direction of the drilled soil and extending to the extrusion opening, is installed in the projection plane of the extrusion opening; A metal wire that is close to the end face of each rod and intersects with the center line of each rod, and a metal wire that is located between the center lines are stretched in parallel, and a guide for moving the drilled soil straight to the extrusion port. An extrusion molding device for tile fabric with a surface.