JPH06210613A - Cutting device of extrusion-molded body - Google Patents

Abstract

PURPOSE:To prevent burr from developing on the surface side of a tile and to remarkably improve the accuracy of cut dimensions by simplifying by a method wherein rotary cutting blades, which make cutting grooves on cut clay bodies produced by cutting continuous clay bodies extruding from an extrusion molder, fixed cutting blades, which cut the cut bodies, and a pusher, which transfers the resultant clay bodies, are equipped. CONSTITUTION:The cutting device 1 of extrusion-molded body concerned is connected with a receiving conveyor 3 equipped with a pre-cutting machine 4, which cuts continuous clay bodies W extruded from an extrusion molder 2 by a certain dimension into cut clay bodies Wa. At the side of the cutting device, a receiving plate 5, on which slits 7 and 7a are formed at the predetermined intervals to its conveying direction, are arranged and a rotating shaft 13, which runs above and below the silt forming positions along the conveying direction of the plate, is rotatably bridged. In addition, on the rotating shaft 13, rotary cutting blades 9, which produce cutting grooves on the front and rear sides of the cut clay body Wa so as to correspond to the slits 7 and 7a, are installed and, at the same time, fixed cutting blades 10 are arranged in front of the rotary cutting blades 9 so as to verticaly pass the slits 7 and 7a. The cut clay bodies Wa are pressingly transferred with a pusher 15 from the receiving conveyor 3 onto the receiving plate 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for cutting an extruded continuous clay substrate, which is capable of preventing defects on the cut surface and continuously cutting small tiles. It is a thing.

[0002]

2. Description of the Related Art Conventionally, in wet type tile manufacturing, a molding base c in which the back foot b of a tile a is integrally formed into two pieces is integrally extruded by an extruder such as a kneading machine, The extruded molding base c is reciprocally controlled in synchronization with the extrusion speed, and is cut into individual tile bases e by a piano wire d that is vertically controlled.

However, at the time of this cutting, when the piano wire d finally passes through the molding base e, the piano wire d
There is a problem that a part of the base material protrudes like a beard and a burr f is generated on the surface side of the tile a, which is a place where the base material attached to the surface due to viscosity is pulled outward and affects the quality of the design. .

Further, since the wet raw material is sedimentary layer clay (miscellaneous clay etc.), the particle size distribution of minerals in the internal structure is relatively wide. Therefore, minerals (feldspar, quartz etc.), chamotte etc. are formed on the surface of the piano wire d. Had a defect that a flaw g having the same shape is formed on the cut surface and the cut edge portion, which causes quality deterioration in the final product and causes a large amount of defective products.

[0005]

DISCLOSURE OF THE INVENTION The present invention prevents the occurrence of burrs or the like on the tile surface side, enables the cutting of small tiles, and simplifies the mechanism to improve the cutting dimension accuracy. It is intended to provide a cutting device.

[0006]

SUMMARY OF THE INVENTION In view of the problems such as external appearance damage such as beards and scratches based on the above-mentioned prior art, the present invention passes a cutting clay base between rotary blades which are vertically positioned and controlled to rotate. After forming the cutting grooves on the front and back sides, the solid part between the cutting grooves is cut by the fixed blade to form the tile base, preventing the occurrence of burrs etc. and simplifying the mechanism and cutting dimensions The object of the present invention is to solve the above-mentioned drawbacks by providing a device for cutting an extrusion-molded substrate, which is intended to improve accuracy.

Hereinafter, the extrusion molding substrate cutting apparatus of the present invention includes an extrusion molding machine, a receiving conveyor, a receiving plate, a rotary blade,
It is composed of fixed blades and pushers.

[0008] A receiving conveyor having a pre-cutting machine for cutting a continuous clay substrate into a cut clay substrate by cutting the continuous clay substrate into a predetermined size is connected to an extrusion molding machine for forming a strip-shaped continuous clay substrate.

The receiving plate has slits formed at predetermined intervals with respect to the conveying direction of the receiving conveyor, and is arranged on the side of the receiving conveyor.

The rotary blades are mounted above and below the slit forming portions of the receiving plate along the conveying direction of the receiving conveyer, and are mounted corresponding to the slits in the axial direction of the rotary shaft that is rotationally controlled. Cutting grooves are formed on the front surface and the back surface.

Further, a fixed blade is arranged in front of the rotary blade by vertically passing through the slit, and a pusher is arranged so as to push and transfer the cut clay substrate from the receiving conveyor onto the receiving plate. is doing.

[0012]

In the present invention, the continuous clay substrate extruded by the extruder is cut into the cutting clay substrate by the pre-cutting machine at the intermediate position of the receiving conveyor and conveyed to the downstream side,
When pushed out to the receiving plate by the pusher at such a position, the cutting clay base advances while sliding the receiving plate, and when passing between the rotary blades controlled to rotate, cutting grooves are formed on the front and back surfaces of the cutting clay base, Then, by further advancing and passing through the fixed blade, the solid portion between the cutting grooves is cut to form a single tile base material.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings, in which 1 is a cutting apparatus for an extrusion molding base according to the present invention, and the cutting apparatus 1 is connected to an extrusion molding machine 2 such as a clay kneader. It is arranged on the downstream side of the receiving conveyor 3 including rollers and belts to be installed.

First, in the middle portion of the receiving conveyor 3, a pre-cutting machine 4 for cutting a strip-shaped continuous clay base W extruded from the extrusion molding machine 2 into a cut clay base Wa by preliminarily cutting it into a predetermined size is arranged. I have set up.

Further, the continuous clay base W forms the back foot W1 on the back surface side, and is cut at an arbitrary position in the longitudinal direction to form a cut clay base Wa (tile base T).

The above-mentioned fixed size is a size in which an extra cutting allowance is taken into account in comparison with the length in which a large number of single tile bases T are continuously connected in series in the cutting step described later.

The pre-cutting machine 4 is composed of a mechanism which controls the reciprocating movement and vertical movement of the piano wire 4a which has been generally used in the past in synchronization with the extrusion speed of the extrusion molding machine 2.

Reference numeral 5 is a receiving plate constituting the cutting device 1,
The receiving plate 5 is provided with a plate-like member 6 on the side of the receiving conveyer 3, and the surface of the plate-like member 6 is arranged so that the height of the surface of the receiving plate is the same as that of the conveying surface of the receiving conveyer 3. And plate member 6
Are formed with slits 7, 7a ... At predetermined intervals in the conveying direction A of the receiving conveyor 3.

The intervals between the slits 7, 7a ... Are set corresponding to the length L of each tile base T to be cut.

Reference numeral 8 denotes a cutting mechanism portion which constitutes the cutting device 1. The cutting mechanism portion 8 includes a rotary blade 9 for forming the cutting grooves Wa1 and Wa2 on the front surface and the back surface side of the cutting clay base Wa, and this table. The fixed blade 10 is formed in a thin blade shape to cut the solid portion Wa3 between the cutting grooves Wa1 and Wa2 on the back surface side.

The rotary blade 9 is provided with an outer blade 12 around the outer circumference of a drum body 11. The rotary blade 9 is provided above and below the positions where the slits 7, 7a ... Are formed in the receiving plate 5 along the conveying direction A of the receiving conveyor 3. It is mounted in the axial direction of the rotating shafts 13 and 13a mounted on the shaft, and a rotary drive source 14 such as a motor is connected to the rotary shafts 13 and 13a, and the rotary blade 9 is rotationally controlled by the operation of the drive source 14.

The rotation direction of the rotary blade 9 is controlled in the same direction or in the opposite direction, and the rotary shaft 13 of the rotary blade 9,
The means for attaching to 13a may be adjustable in the axial direction, or may be fixedly provided.

Further, the fixed blade 10 is arranged behind the rotary blade 9 and is fixedly provided by vertically passing through the slits 7, 7a of the receiving plate 5 and formed by the rotary blade 9. The solid portion Wa3 between the cutting grooves Wa1 and Wa2 is cut.

[0024] Reference numeral 15 is a clay base material cut from the receiving conveyor 3 onto the receiving plate 5 so as to be orthogonal to the conveying direction A of the receiving conveyor 3.
A pusher that pushes and transfers Wa.
15 is a receiving plate 5 on the downstream side of the receiving conveyor 3
A pressing plate (17) which is movable forward and backward by a linear drive source (16) such as a cylinder is provided on the side.

Reference numeral 18 is a relay conveyor, and the relay conveyor
18 is to be arranged on the side of the receiving plate 5, and is a flat belt 19
The surface is set at the same level as the height of the receiving plate 5, and the conveying direction by the flat belt 19 is made the same as the pushing direction of the cutting clay base Wa by the pusher 15, and the pusher 15
It is operated intermittently in synchronization with the pushing amount of the cutting clay base Wa.

In the figure, 20 is a linear guide for maintaining the linear movement of the pressing plate 17, 21 is a trolley for firing the tile base T, which is cut into a large number from the cut clay base Wa by the cutting mechanism unit 8 (not shown). The reference numeral 22 designates a mesh conveyer which conveys the tile group consisting of a large number of tile bases T on the relay conveyer 18 to the mesh conveyer 21 by suction.

Next, the operation of the apparatus for cutting an extrusion molding substrate according to the present invention will be described. First, the continuous clay substrate W continuously extruded by the extrusion molding machine 2 reaches the intermediate position of the receiving conveyor 3. Then, the preliminary cutting machine 4 cuts a large number of individual tile bases T into a length longer than the continuous length of the tile bases T, and the cut clay base Wa is conveyed to the downstream side of the receiving conveyor 3. .

Next, the cut clay base Wa that has reached the downstream side of the receiving conveyor 3 is moved to the receiving conveyor 3 side by the linear drive source 16 of the pusher 15 and is pushed back and forth to the receiving conveyor 3 side. When pushed out in the direction orthogonal to the transport direction A, the cutting mechanism portion 8 located in front of the pushing direction cuts the tile base material T into a single piece.

For the cutting step, the pusher 15
The cutting clay body Wa extruded by the sliding cutter moves forward on the receiving plate 5 while sliding, and passes between the upper and lower rotary blades 9 which are rotationally controlled by the rotary drive source 14.
The front and back surfaces of the cutting groove Wa1, at regular intervals in the longitudinal direction,
Wa2 is formed, and when it is further advanced, the slit 7,
The solid portion Wa3 between the cutting grooves Wa1 and Wa2 is cut by a fixed blade 10 provided so as to pass vertically between 7a ...

The tile base material T cut into individual pieces stands by on one side of the receiving plate 5 in a state of being arranged in series with respect to the conveying direction A of the receiving conveyor 3, and is further cut by the subsequent cutting clay base material Wa. Relay conveyor that is sequentially pushed out
It is transferred while being slid on the flat belt 19 of 18, and then a fixed number of it is transferred onto the mesh conveyor 20 by the suction transfer device 21 and conveyed to the firing process which is a post process.

Incidentally, at the time of suction transfer by the suction transfer machine 21,
Only the surface of the tile base T standing by on the relay conveyor 18 may be dried by a warm air blower (not shown).

[0032]

INDUSTRIAL APPLICABILITY In short, the present invention is provided with an extrusion molding machine 2 for molding a strip-shaped continuous clay base W, and the continuous clay base W is cut into a certain size by cutting the continuous clay base W in the extrusion molding machine 2.
A receiving conveyor 3 provided with a pre-cutting machine 4 made of Wa and provided with slits 7, 7a ... At predetermined intervals in the conveying direction A on the side of the receiving conveyor 3. The plate 5 is provided, and the rotary shafts 13 and 13a are mounted above and below the slits 7, 7a of the receiving plate 5 along the conveying direction A, and the rotary shafts 13 and 13a are axially arranged. Are cut grooves Wa1 and Wa on the front surface and the back surface of the cut clay substrate Wa in correspondence with the slits 7 and 7a.
The rotary blade 9 for forming 2 is mounted, and the fixed blade 10 is disposed in front of the rotary blade 9 by passing through the slits 7, 7a ... Up and down, while receiving from the receiving conveyor 3 Since the pusher 15 for pushing and transferring the cutting clay base Wa onto the plate 5 is arranged, the cutting grooves Wa1 and Wa2 are formed on the front and back surfaces of the cutting clay base Wa by the rotary blade 9, and then the cutting grooves are formed by the fixed blade 10. Since the solid part Wa3 between Wa1 and Wa2 can be cut to form a single tile base T, it is possible to prevent the occurrence of burrs on the tile surface side, and to cut a large amount at a time. Because it is a rotary blade 9 that is controlled to rotate,
Minerals contained in the base material do not adhere and the cut surface is finished well, and even if it is a small tile that is easily deformed (mosaic tile, etc.), no external force other than the cutting force is applied to the cut clay base Wa. Therefore, it is possible to cut, and since it is possible to cut by simply pushing out without synchronizing with the conveying speed as in the conventional case, it is possible to simplify the mechanism, thereby significantly improving the cutting dimension accuracy. Its practical effect is very large.

[Brief description of drawings]

FIG. 1 is a partially omitted plan view of a production line including a cutting device for an extrusion-molded substrate according to the present invention.

FIG. 2 is a partially omitted side view of the above production line.

FIG. 3 is a partially omitted front view of the above production line.

FIG. 4 is a schematic perspective view showing a positional relationship between a rotary blade and a fixed blade for cutting the cut clay substrate.

FIG. 5 is a schematic perspective view showing a cut state from a cut clay substrate to a tile substrate.

FIG. 6 is a front view of a conventional cutting device.

FIG. 7 is a front view of the tile base material cut by raising the piano wire in the above cutting device.

FIG. 8 is a perspective view showing a cut surface of another tile base material of the above.

[Explanation of symbols]

 2 Extrusion molding machine 3 Receiving conveyor 4 Pre-cutting machine 5 Receiving plate 7, 7a ... Slit 9 Rotating blade 10 Fixed blade 13, 13a Rotating shaft 15 Pusher

Claims (1)

[Claims] 1. A receiving conveyor provided with an extrusion molding machine for molding a strip-shaped continuous clay substrate, and a preliminary cutting machine for cutting the continuous clay substrate into a cut clay substrate by cutting the continuous clay substrate to a predetermined size. And a receiving plate having slits formed at predetermined intervals in the conveying direction on the side of the receiving conveyor, and the conveying direction above and below the slit forming portion of the receiving plate. A rotary shaft that is rotationally controlled along the axis is mounted, and a rotary blade for forming a cutting groove is formed on the front surface and the back surface of the cutting clay substrate in the axial direction of the rotating shaft in association with the slit, and A fixed blade is arranged in front of the rotary blade by vertically passing through the slit, and a pusher for pushing and transferring the cut clay substrate from the receiving conveyor onto the receiving plate is provided. Cutting equipment for extrusion molding.