JP2002103320A - Molding method of roof tile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily mold a protruding section or a thicker section formed on the end surface sides of a roof tile, reduce the cost by reducing the working space and the equipment cost or the like for the molding, increase the quality and the yield, and improve the roof tile molding. SOLUTION: When a tile base material Y1 is planarly pressed by a pair of matched dies 3a and 3b, and press-molded, the end section side of the tile base material Y1 is pressed from the side direction of the die joined section of the pair of the matched dies 3a and 3b. Thus, the end section side is press- molded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a roof tile, and more particularly to a method of forming a roof tile suitable for forming a thick portion, a protruding portion, or the like at an end of the roof tile.

[0002]

2. Description of the Related Art Generally, for example, an arc-shaped hanging portion or a crosspiece is hooked on a front end side and a rear end side of a roof tile such as a flat roof tile or a cross tile, that is, on both end faces of a head and a butt. In forming these roof tiles, first, a tile body formed in a predetermined shape is formed by a pair of mating dies in a press device for primary forming. A primary forming (rough forming) step of squeezing and forming a portion corresponding to a protruding portion such as a protruding portion, a protrusion, or a thick portion by squeezing while flat pressing with an upper mold and a lower mold. ,
Next, the upper and lower dies, which are a pair of mating dies in the secondary forming press device, press the flat surface of the tile body having been subjected to the above-described primary molding, while applying a regular anteversion, a projection such as a projection, or a meat. At present, it is formed through two steps of a secondary forming (finish forming) step of forming a thick portion.

[0003]

However, recently,
The depletion of clay, which is the base material of the tile, the diversification of the tile, the demand for high quality, etc., are also required to be advanced in the molding of the tile.However, in the conventional molding method described above, the primary molding and Two press devices for secondary molding are required, and the cost of tiles is inevitable due to the increase in molding work space and equipment costs, and the primary molding (rough molding) process and secondary molding (finish molding). In order to perform the process, inevitably,
Problems such as distortion and yield were unavoidable, and were not satisfactory in terms of quality improvement. Therefore, the present invention has been made in view of the above-described problems, and an object of the present invention is to simplify a projecting portion or a thick portion formed on an end face side of a tile in a single flat pressing process on a tile substrate. Provide a method of forming a tile that can be formed, thereby reducing the working space and equipment costs of the molding to reduce the cost, improve the quality and the yield, and improve the tile forming. That is.

[0004]

SUMMARY OF THE INVENTION The above-mentioned problems are solved by the invention described in the claims. That is, in the method of forming a roof tile according to claim 1, when the tile body is press-formed by planar pressing with a pair of mating dies, an end portion of the tile body from a side of a mold matching portion in the pair of mating dies. The gist of the present invention is that the side is pressed to form the end portion under pressure.

[0005] According to this, by pressing the end side of the tile body and press-forming the end side, the tile body is flat-pressed once and press-formed. It is possible to form a roof with a part and a thick part formed at once. As a result, it is possible to reduce the cost and to improve the quality and the yield in the tile molding.

A method of forming a roof tile according to a second aspect is the method of forming a roof tile according to the first aspect, wherein both ends of the tile body are pressed from opposite sides of the joining portion. The gist of the invention is that the part side is formed by pressure molding.

[0007] According to this, by pressing both end portions of the tile body and press-forming the both end portions, the tile body is flat-pressed once and press-molded, and protrudes toward the both end portions. The roof tile can be formed by forming the part and the thick part at one time, and in addition to the method described in claim 1, the cost of the tile can be further reduced, and the quality and the yield can be improved.

According to a third aspect of the present invention, there is provided a method of forming a roof tile according to the first or second aspect, wherein a bending operation is applied to an end portion at the time of the pressure forming. The main point is what has been done.

According to this, it is possible to easily form a protruding portion at an end of the tile body, for example, a hanging sleeve portion of a sleeve tile.

[0010]

Embodiments of the present invention will be described below with reference to FIGS. First, the first forming method according to the present embodiment will be described with reference to FIGS. 1 to 3 together with the apparatus. In the drawing, reference numeral 1 denotes, for example, a rotary flat-pressing press apparatus. When roughly classified, a press base 2 having a square section and a predetermined length (in the case of the drawing, a length corresponding to about one tile to be formed) and having a square cross section, Press means 4A to 4E provided with upper mold 3a and lower mold 3b (corresponding to a paired mold of the present invention) each having a mold surface corresponding to the shape of a tile to be formed, which is provided on a plane portion of the surface. 4
D.

The press base 2 is rotatably supported by a part of the press device 1 via rotary shafts 5, 5 formed at both ends thereof, and is an intermittent rotation drive means such as a motor. (Not shown) so that intermittent rotation is controlled every １ ／ rotation.

Then, 1/4 of the press base 2
The respective positions for each rotation are such that the upper and lower dies 3a and 3b of the tiles Y1 of the tiles to be formed when the respective pressing means 4A to 4D are fixed at the lower part of the press base 2 are used. And a press-forming position where the tile material Y1 which is aligned with the carry-in portion 6 such as a roller conveyer to be carried in and press-formed by pressing the tile material Y1 carried in by the upper and lower dies 3a and 3b of the pressing means 4A to 4D. None, 1/4 turn from the lower position, that is, 90 degree rotation, in the state where it is fixed to one side, presses the tile body Y1 pressed and pressed from the upper and lower end faces from the upper and lower end faces. The press forming position is set, and the tile material Y1 which has been pressed and formed on the end face side in a state where it is further rotated by 1/4 from the one side position, that is, rotated 90 degrees and is fixed at the upper portion, is pressed by the pressing means 4A. Up to 4D There is no unloading and unloading position aligned with the unloading section 7 such as a belt conveyor for unloading from the lower mold 3a and the lower mold 3b. In the state, the upper and lower dies 3a and 3b of the pressing means 4A to 4D are set to be in a standby position where the upper dies 3a and the lower dies 3b wait until the first carry-in and press forming positions.

The pressing means 4A to 4D is provided with an upper mold 3
a is fixedly mounted on the flat surface side of the press base 2, and the lower mold 3b and the lower mold 3b are moved up and down with respect to the upper mold 3a by pressurizing means 8 to 8 such as hydraulic cylinders for press forming. The mold clamping operation and the mold release operation for taking out a molded product are performed.

The mold surfaces of the upper mold 3a and the lower mold 3b include a mold surface of a tile to be molded, and further, for example, a thick portion or a protruding portion on the end surface side of the head and buttocks. Mold surfaces W1 and W2 are formed, and the end surfaces of the mold surfaces W1 and W2 are open at predetermined intervals Wa and Wb at the end of the mold clamping operation of the upper mold 3a and the lower mold 3b (vacant space). It is formed so that it becomes.

At the press forming position on the end face side of the press base 2, press forming means 9, 10 on the end face positioned above and below the press base 2 are mounted on the press apparatus 1. The press forming means 9 and 10 are connected to the mold surface W1.
And pressing members 12 and 13 which are formed to have a width equal to the width of the end face side of W2 and whose vertical movement is guided by the guide members 11 and 11, and a hydraulic cylinder and the like which vertically moves the pressing members 12 and 13 From a pair of pressurizing means 14 to 14 provided on both sides of each of the vibrator means 15 and 15 provided on the pressing members 12 and 13 and applying a predetermined vibration to the pressing members 12 and 13, respectively. It is configured.

The pressing members 12 and 13 are formed to have the same thickness as the gaps Wa and Wb formed at the end of the closing operation of the upper die 3a and the lower die 3b. Both sides are supported in a suspended shape and a lifted shape by .about.14, and the distal end portions thereof are configured to be able to freely enter and exit the spaces Wa and Wb.

In FIG. 1, reference numeral 16 denotes a tile body Y1 provided at a position corresponding to the unloading / unloading position on the press base 2 and having completed the pressure molding between the upper die 3a and the lower die 3b. Pusher means for extruding and carrying out from

Now, a first forming method for forming a tile by the press apparatus 1 constructed as described above will be described. In FIG. 1, a tile body Y1 corresponding to the tile to be formed is shown in FIG.
From the loading section 6 and into the upper die 3a and the lower die 3b of the pressing means 4A at the press forming position at the lower position of the press base 2.

Then, in the pressing means 4A into which the tile body Y1 has been carried in, the pressurizing means 8 to 8 are operated to move the lower mold 3b together with the tile body Y1 to the upper mold 3a side. With the mold 3b, the tile body Y1 is flat-pressed into a tile shape to be formed and press-formed. In this case, the tile body Y1 press-formed by pressing the plane is formed into the mold surfaces W1 and W2 for forming the thick part and the protruding part on the both end sides which are the head part and the butt part of the tile to be formed. In addition, when the upper mold 3a and the lower mold 3b are clamped, predetermined gaps Wa and Wb are formed on the end faces of the mold surfaces W1 and W2.

The press base 2 is rotated by 1/4 turn, that is, 90 degrees, while keeping the upper mold 3a and the lower mold 3b in the press means 4A in the clamped state.
The pressing means 4A, which has completed the press forming by pressing the plate 1 in a plane, is placed at a press forming position on the end face side of one side of the press base 2.

At this pressure forming position, the pressing means 14 to 14 of the upper and lower pressure forming means 9 and 10 on the end face side are operated to move the pressing members 12 and 13 up and down, respectively.
The leading end portion is inserted into the gaps Wa and Wb, and at the same time, presses both end surfaces of the tile Y1 along the mold surfaces W1 and W2 on both end surfaces serving as a head and a butt portion of the tile to be formed. The thick part and the protruding part are formed under pressure (press molding).
(See FIGS. 3a and 3b) In this case, the vibrator means 15,
15 can be operated to apply predetermined vibrations to the pressing members 12 and 13 to cooperate with the pressing operation. The end faces of the pressing members 12 and 13 in the upper and lower pressure forming means 9 and 10 are shaped so as to form an end face shape such as a thick portion or a protruding portion serving as a head and a butt portion of a tile to be formed. Is formed.

Next, the pressing means 4A, which has completed the pressing of both sides of the tile base Y1 by rotating the press base 2 a further 1/4 turn, that is, 90 degrees, is replaced with the press base 2 Place it in the upper unloading position.

At this unloading / unloading position, the upper die 3a and the lower die 3b of the pressing means 4A are released, and the pusher means 16 is operated to complete the molding.
The (molded product) is taken out from the upper mold 3a and the lower mold 3b, taken out to the carry-out section 7, and carried out. Here, the tile body Y1 is formed into a tile shape to be formed.

Then, the press base 2 is further rotated by ４, that is, rotated by 90 °, and the press means 4A, which has taken out and carried out the molded product, is fixed at the standby position on the other side of the press base 2 and is initially placed. And wait until it reaches the press forming position.

As described above, a tile having a predetermined shape is formed. Similar to the above-described tile forming operation of the press means 4A, each of the other press means 4B to 4D also has a corresponding one of the press bases 2. The tile forming operation is performed sequentially and continuously at the position.

As described above, in the second forming method according to the present embodiment, a single flat press forming is performed on the tile body Y1 and the projecting portions and the thick portions are formed on both ends. Since it can be formed at one time, it is possible to reduce the work space and equipment costs associated with the formation of the roof tile, thereby lowering the cost, and improving the quality and the yield.

Next, the case where the molding method of the present embodiment is carried out by another apparatus will be described with reference to FIGS. 4 and 5. In this case, each of the pressing means 4B to 4B in the press apparatus 1 is used. 4D is a case where the end face side is mounted on each flat portion of the press base 2 and the above-described press forming means 9 and 10 are provided only on one side. 1, the same components are denoted by the same reference numerals in the drawing, and description thereof will be omitted.

Therefore, according to the second molding method of the present embodiment, at the pressure molding position of the press base 2,
The pressing means 14 of the pressing means 9 on the end face side is operated to move the pressing members 12 downward, respectively, and the tile body Y1
Is pressed to form a thick portion or a protruding portion along the mold surface W1 (press forming) on the end surface of the roof to be formed, which is the head or buttocks (FIG. 4). The other molding (operation) is performed in the same manner as in the first molding method of the above-described embodiment.

In the second molding method of the present embodiment, the same functions and effects as those of the first molding method of the above-described embodiment are enjoyed.

A case where the third molding method of the present embodiment is carried out by another apparatus shown in FIGS. 6 to 8 will be described.
Are installed on both sides, and the basic configuration is the same as that of the press apparatus 1 shown in FIGS. 4 and 5 described above. The description is omitted.

Therefore, in the third molding method according to the present embodiment, at the pressure molding position of the press base 2,
The pressurizing means 14 to 14 in the pressurizing means 9 and 10 on both sides on the end face side are operated to move the pressing members 12 and 13 to the left and right, respectively, to press the both end face sides of the tile Y1 to form. The mold surface W is placed on the end surface of the roof tile to be the head or buttocks.
1, a pressure forming (press forming) of a thick portion, a protruding portion and the like along W2 (see FIGS. 7 and 8), and the remaining forming (operation) is the first of the above-described embodiment. This is performed in the same manner as the molding method.

In the third molding method according to the present embodiment, the same operation and effect as those of the above-described embodiment can be obtained.

Next, an embodiment of a fourth molding method different from the above-mentioned molding methods will be described with reference to FIG.
With reference to (b), the fourth forming method according to the present embodiment applies a bending operation to the end side of the tile Y1 at the time of planar pressing in the above-described forming method. In the case of molding in which a protruding portion is formed on the end side, in this case, a concave mold surface W1a corresponding to the protruding portion Y2 to be bent and formed is formed on the mold surface end side of the upper mold 3a. An extended mold surface W2a is formed on the mold surface end side of the corresponding lower mold 3b, which presses and bends the end side of the tile body Y1.

Then, after the tile body Y1 having a size corresponding to the length corresponding to the protruding portion Y2 to be bent and formed is inserted into the mold surfaces of the upper mold 3a and the lower mold 3b and fixed, The upper mold 3a or the lower mold 3b is moved down or up, respectively, or both the upper mold 3a and the lower mold 3b are moved down and up, and the tile body Y1 is formed by the upper mold 3a and the lower mold 3b. It is press-formed by applying flat pressure to the desired roof tile shape.

In performing press molding by pressing this plane,
A tile Y at a portion corresponding to the protrusion Y2 to be bent and formed.
1, the end side is the upper mold 3a and the lower mold 3b.
(Press molding), the lower mold 3b is bent by the extended mold surface W2a to a substantially right angle rising upward from a substantially horizontal state along the extended mold surface W2a. At the same time, the concave mold surface W1a of the upper mold 3a
It is pressed and molded. (See FIGS. 9A and 9B)

Thus, in the fourth forming method of the present embodiment, the projecting portion Y2 at the end of the tile body Y1,
For example, the hanging sleeve portion of the sleeve tile can be easily formed together with a single plane press, and the same operation and effect as those of the first forming method in the above-described embodiment can be obtained.

In each of the forming methods of the above-described embodiments, a flat roof tile is shown, but the present invention is not limited to this, and a rotary flat pressing device may be used as the pressing device. However, the present invention is not limited to this.

[0038]

According to the first aspect of the present invention, the roof tile is pressed once by flat pressing, and a roof tile having a protrusion and a thick part formed at one time at the end is formed. be able to. As a result, it is possible to reduce the cost and to improve the quality and the yield in the tile molding.

According to the second aspect of the present invention, it is possible to form the roof tile by pressing the flat roof once by flat pressing and forming the protrusions and the thick portions on the both end sides at once. Thus, in addition to the effects described in the first aspect, it is possible to further reduce the cost of the tile and to improve the quality and the yield.

According to the third aspect of the present invention, it is possible to easily form a protruding portion at the end of the tile body, for example, a hanging sleeve portion of a sleeve tile.

[Brief description of the drawings]

FIG. 1 is a schematic front view including a partial cross section of a press device used in a first molding method according to an embodiment.

FIG. 2 is a schematic side view including a partial cross section of the press device.

FIGS. 3 (a) and 3 (b) are explanatory views showing main parts at the time of molding in a first molding method.

FIG. 4 is a schematic front view including a partial cross section of another pressing device used in the second molding method of the present embodiment.

FIG. 5 is a schematic side view including a partial cross section of the press device.

FIG. 6 is a schematic front view including a partial cross section of still another pressing device used in a third molding method according to the present embodiment.

FIG. 7 is a schematic side view including a partial cross section of the press device.

FIG. 8 is a schematic plan view including a partial cross section of the press device.

FIGS. 9 (a) and 9 (b) are explanatory views showing main parts at the time of molding in a fourth molding method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Press apparatus 3a Upper die 3b Lower die 9 Press forming means 10 Press forming means W1, W2 Mold surface Wa, Wb Interval Y1

Claims (3)

[Claims] When pressing a tile body with a pair of mating dies by flat pressing, the end side of the tile body is pressed from the side of the mold mating portion of the pair of mating dies. Method of forming roof tiles by pressing. 2. The method of forming a roof tile according to claim 1, wherein both ends of the tile body are pressed from opposite sides of the mold matching portion to press the both ends. 3. The method of forming a roof tile according to claim 1, wherein a bending operation is applied to an end portion at the time of the pressure forming.