JPH07266318A - Manufacture of cement mortar molded form - Google Patents

Abstract

PURPOSE:To mold a cement mortar molded form of a complicated shape having a simple structure, less number of components and no driving source for vertically moving a frame without cutout by using it to pressure mold a roof tile, an architectural material, and efficiently sucking from vacuum suction means. CONSTITUTION:Many vent holes 2 are formed at one molding surface 1a (19a) of one of upper and lower molds K, connected to vacuum suction means P, and a frame 20 in which one mold can be engaged is formed at a periphery of a molding surface of the other mold. An air supply communicating passage 14 communicating with the molding surface of the one mold is formed to efficiently suck and press a cement mortar molded form at the time of pressurizing the form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cement mortar molded product manufacturing apparatus, which is optimally used for pressure molding of roof straw, inner wall panels and outer wall panels as building materials.

[0002]

2. Description of the Related Art Conventionally, in a cement mortar molded product manufacturing apparatus for molding cement mortar as a raw material, one of upper and lower molds K consisting of an upper mold a and a lower mold b as shown in FIG. For example, a large number of through holes d are provided on the molding surface c of the upper mold a, and the through holes d are connected to a vacuum blower P ′ as a vacuum suction means provided outside the apparatus, and the upper mold a having the through holes d is provided. There is an invention of a structure in which a form f is provided around the above so as to be vertically movable. Then, water is squeezed when the raw material G of the cement mortar is pressed by the upper mold a and the lower mold b through the through hole d communicating with the vacuum blower P ', or the cement mortar molded product S'after the pressure molding. Was adsorbed and transported.

[0003]

By the way, a cement mortar molded product having an upper mold and a lower mold has a structure in which air for conveying water is squeezed for squeezing water from the raw material of the cement mortar during pressure molding. There is a problem of where and how to provide the drainage route of the hydrated water.

The cement mortar device having the above structure shown in FIG. 10 is, for example, an upper unit for adsorbing water to the raw material and adsorbing the cement mortar molded product S'at the time of pressure molding by the upper mold a and the lower mold b. Since the mold frame f is vertically movable around the mold a, the mold frame f blocks the air supply from the molding surface c of the upper mold a. Therefore, in order to apply the vacuum suction force from the vacuum blower P'to squeeze water, it is necessary to positively provide an air supply communication passage communicating with the through hole d.

Moreover, since the mold f is vertically moved around the upper mold a, the structure is complicated, the number of parts is increased, and a driving source for vertically moving the mold is required.

Further, since the mold frame f has a structure which moves up and down around the upper mold a, it is not suitable for molding a cement mortar molded product having a complicated shape.

In view of this, the present invention efficiently provides a vacuum suction force from a vacuum blower by providing a supply air communication passage communicating with a through hole provided on one molding surface of the upper and lower molds at the shortest distance. It is an object of the present invention to have a simple structure, a small number of parts, a drive source for moving the mold up and down, and a cement mortar molded product having a complicated shape.

[0008]

The present invention has been made in view of the above-mentioned problems, and a large number of through holes are provided in one molding surface of the upper and lower molds, and the through holes are connected to vacuum suction means, and A mold part surrounding a part of one of the molds at the time of pressure molding is formed around the molding surface of the mold, and the one mold which can be fitted into the mold part communicates with the molding surface. The means of forming the air supply communication passage was adopted.

[0009]

A mold frame part is formed around the molding surface of one mold so as to surround a part of the other mold, and the other mold is fitted into the mold part. Since the air supply communication passage leading to the surface is formed, air is supplied through the air supply communication passage during pressure molding of the cement mortar raw material, and water is squeezed by the vacuum suction force from the vacuum suction means. Cement mortar molded product is sucked and transported.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 denotes an upper mold, a large number of through holes 2 are provided in a molding surface 1a on the lower surface of the upper mold 1, and a suction chamber 3 communicating with the through holes 2 is formed inside the upper mold 1. .

Reference numeral 4 denotes a filtration unit attached to the molding surface 1a so as to communicate with the through hole 2. The filtration unit 4 is composed of, for example, a wire net 5, a dehydrating cloth 6 and a draining iron plate 7. .

As shown in FIG. 2, the upper mold 1 is provided with a slide base 10 at the lower end of a piston 9 which moves up and down in a hydraulic cylinder 8 as a high pressure press, and is arranged on the lower surface of the slide base 10. It moves up and down. Moreover, this upper mold 1
Is an air cylinder 11 mounted below the slide base 10.
Is slidably mounted via a sliding block 13 connected to a piston 12 that slides.

Reference numeral 14 denotes an air supply communication passage provided substantially vertically inside the side surface of the upper mold 1. An inlet 14a of the air supply communication passage 14 is opened on an upper side surface of the upper mold 1, and an outlet 14b is formed by the molding. It communicates with the surface 1a.

Reference numeral 15 is a raw material input plate for inputting a raw material G for cement mortar into the mold, and this raw material input plate 1
5 is connected to a piston 17 of a cylinder 16.

Reference numeral 18 denotes the suction chamber 3 provided in the upper mold 1.
Is a drain pipe provided on the upper part of the upper part of the drawing and is connected to a vacuum blower P serving as a vacuum suction means, so as to squeeze water from the raw material G of cement mortar during pressure molding.

The suction chamber 3 provided in the upper mold 1 is provided with a bottom portion 3a thereof which is inclined downwardly in the vicinity of a lower end portion 18a of a drainage pipe 18 so that water squeezed from a raw material G of cement mortar can be obtained. I try to drain it.

Reference numeral 19 denotes a lower die which cooperates with the upper die 1 to form a die K, and the lower die 19 is arranged below the upper die 1 so as to face the upper die 1.

Reference numeral 20 denotes a mold part provided around the molding surface 19a of the lower mold 19, and this mold part 20 is a part of the upper mold 1, for example, the lower part 1b, when the upper mold 1 performs pressure molding. The lower part 1b is enclosed by the insertion.

Reference numeral 21 denotes a gas injection hole as a mold releasing device which is provided on the molding surface 19a of the lower mold 19 so as to face the upper mold 1. The gas injection hole 21 is a piston 23 which moves up and down in the cylinder 22. It is opened and closed by the upper end. Gas injection hole 21
The lower end of is connected to a gas supply passage 24 having a diameter larger than the diameter, and the gas supply passage 24 is connected to the outside of the lower mold 19 by a gas injection port 25, and a lid 26 provided on the gas injection port 25 is connected.
By removing this, the gas supply passage 24 can be regularly cleaned and washed.

The cylinder 22 is of a pneumatic type or a hydraulic type, and the cylinder 22 is provided on the lower surface of the lower die 19 on the axis N of the gas injection hole 24.

Reference numeral 27 is a pedestal for carrying and delivering the cement mortar molded product S after pressure molding and release, and this pedestal 27 is a piston 27 which can be raised and lowered in a cylinder 27a.
Moves up and down with b.

An embodiment of the present invention will be described with reference to the operation in the case of press-molding a cement mortar molded product S having the above-mentioned structure and formed from a cement mortar raw material G such as roof straw.

First, the cylinder 16 is driven to rotate the raw material feeding plate 15, whereby the raw material G of cement mortar is charged into the molding recess of the lower mold 19 (see FIGS. 1 and 2).

Next, the hydraulic cylinder 8 of the high-pressure press is driven and the upper die 1 is lowered with respect to the lower die 19. The lower part 1b as a part of the upper mold 1 is fitted into the mold frame part 20 provided around the lower mold 19, whereby the upper mold 1 and the lower mold 1 are
The raw material G is pressed from above and below and around by the mold 9 provided on the lower mold 19.

At the same time, when the vacuum blower P is driven and sucked, the raw material of the cement mortar is passed through the filtration unit 4 provided on the molding surface 1a on the lower surface of the upper mold 1 and the through holes 2 provided on the molding surface 1a. Water is squeezed from G and drained from the suction chamber 3 through the drain pipe 18 to the outside of the machine body. At this time, air is supplied to the molding surface 1a of the upper mold 1 from the air supply communication passages 14 provided in the upper mold 1 in the vertical direction, so that suction from the through holes 2 and water squeezing are smoothly performed.

Moreover, the suction chamber 3 provided in the upper mold 1 is
Since the bottom portion 3a is provided in the vicinity of the lower end portion 18a of the drain pipe 18 which is led to the outside above the suction chamber 3 and is inclined downward, the raw material G sucked into the suction chamber 3 is squeezed from the raw material G. The water flows downstream along the bottom portion 3a of the suction chamber 3 to expedite the drainage from the drain pipe 18.

Thus, the raw material G is pressurized and the cement mortar molded product S is molded.

After that, the cylinder 8 is driven, and the upper mold 1 is lifted with respect to the lower mold 19 while the cement mortar molded product S is adsorbed on the molding surface 1a by the suction of the vacuum blower P.
At the same time, the cylinder 22 is driven so that the piston 23 descends in the gas supply passage 24 so that the molding surface 19 of the lower mold 19 is formed.
When the plurality of gas injection holes 21 provided in a are opened, a gas such as compressed air is ejected from the gas injection holes 21 to press the lower surface of the cement mortar molded product S.

In this way, the upper surface of the cement mortar molded product S is adsorbed by the upper mold 1, and the cement mortar molded product S is
The lower surface of the cement mortar molded product S is easily and surely released by being lifted by the ejection of gas from the gas injection hole 21. Therefore, even a cement mortar molded product S having a complicated shape can be released without causing chipping at the time of release.

After that, the air cylinder 11 is driven and the piston 12 contracts, so that the upper mold 1 slides on the sliding block 13 provided on the lower surface of the sliding base 10 while the cement mortar molded product S is adsorbed on the molding surface 1a. It moves and reaches right above the pedestal 27.

Then, the piston 27b of the cylinder 27a
Is driven to raise the pedestal 27, the driving of the vacuum blower P is stopped, and the suction to the cement mortar molded product S is stopped, so that the cement mortar molded product S is placed on the pedestal 27.

After that, after the air cylinder 11 extends to the molding position and the upper mold 1 moves to the old position, the remaining residue of the raw material G is washed away from the passage (not shown) to smooth the water squeezing and suction and to perform the pressure molding. In order to finish the surface of the cement mortar molded product S to be cleaned, preparation for the next press molding is performed.
In this way, the cement mortar molded product S is pressure-molded.

FIG. 5 shows a second embodiment of the present invention. In this embodiment, the mold frame portion 20 provided around the lower mold 19 is shown.
Is divided into several mold component pieces 20A, 20B, and at least one of the divided component pieces 20A, 20B,
In the figure, the right divided component piece portion 20B is provided for the remaining form part (left portion in the figure left component portion 20A) movably in a substantially horizontal direction by using the driving force of the cylinder 30 as a drive source. It became a separable structure.

The raw material G formed by the upper mold 1 and the lower mold 19
The mold part 20 provided around the lower mold 19 which is separably divided into several mold component pieces 20A and 20B at the time of pressure molding.
At least one of them, for example, the right divided component piece 20B is moved in a substantially horizontal direction with respect to the remaining mold component piece 20A by the driving force of the cylinder 30, and is separated, whereby the cement mortar molded product S is obtained. Is prevented from being chipped at the time of releasing from the lower mold 19 by being absorbed by the upper mold 1. Further, as shown in the figure, since the mold part 20 is divided into two divided component pieces 20A, 20B ..., A cement mortar molded product S having a complicated shape and a mold for molding the cement mortar molded product S can be manufactured. The form part 20 is not limited to being separated into two parts as shown in the figure, but may be a part that is movably separated into a plurality of divided component pieces.

FIG. 6 shows a third embodiment of the present invention. In this embodiment, in the first and second embodiments, the upper surface of the upper mold 1 is provided with the air supply communication passage 14 and the molding surface 1a. Although air is supplied to the upper mold 1, in this embodiment, the air is supplied by providing the air supply communication groove 14 'on the outer surface of the upper mold 1, and in addition to the manufacturing of the upper mold 1, Air supply communication groove 1
It differs from each of the above-described embodiments in that the machining of 4'is facilitated.

FIG. 7 shows a fourth embodiment of the present invention. In this embodiment, the lower part 1b of the upper mold 1 is slidably fitted in the air supply communication groove 14 '. Since it is formed on the inner peripheral surface of the mold frame portion 20 provided around the lower mold 19, air is supplied to the molding surface 1a of the upper mold 1 to perform suction and water squeezing. Upper mold 1 and lower mold 1
It was made possible to easily manufacture 9 and the machining of the air supply communication groove 14 '.

FIG. 8 shows a fifth embodiment of the present invention. In this embodiment, the upper die 1 and the lower die 19 into which a part of the upper die 1 is fitted are surrounded. Air is supplied to the molding surface 1a by forming air supply communication grooves 14 'and 14 "that are vertically aligned with each other on the sliding surfaces facing the provided mold part 20.

Further, FIG. 9 shows a sixth embodiment of the present invention. In this embodiment, the upper mold 1 is used as a cement mortar molded product S, for example, when pressure is applied to a roof tile of a roof straw. Molding surface 1a of the lower mold 19
The molding surface 19a and the molding surface 19a are different from the above-described embodiments in that a molded product having a complicated shape in which the releasing surfaces are the same surface and does not coincide with each other is manufactured.

In each of the first to sixth embodiments, the case where the upper mold 1 is moved up and down and the lower mold 19 is fixed at the time of press-molding the cement mortar molded product S is explained, but the opposite is true. The lower mold 19 moves up and down with respect to the upper mold 1,
The upper mold 1 may be a fixed mold, and further, the upper mold 1
It can also be applied to a mold in which both the lower mold 19 and the lower mold 19 move up and down.

In the first and second embodiments described above, a large number of through holes 2 are provided in the molding surface 1a of the upper mold 1 and the air supply communication passage 14 communicating with the molding surface 1a is provided in the upper mold 1.
Around the lower die 19 into which the part of the upper die 1 is fitted is provided in the air supply passage 14 'on the outer surface of the upper die 1 in the third embodiment. In the fifth embodiment, an air supply communication groove 14 ′ is provided on the inner peripheral surface of the mold part 20 provided in the upper part of the upper mold 1 and in the lower mold 19 facing the mold part 20 of the upper mold 1 and the air supply communication groove 14 ′. ′ And 14 ″ are provided so as to be aligned with each other.

However, unlike each of these embodiments, a large number of through holes 2 covered by the filtration unit 4 are provided on the molding surface 19a of the lower mold 19 to connect to the vacuum blower P and to face the lower mold 19. The molding surface 1a of the mold 1 is provided with a plurality of gas ejection holes 21, and the air supply communication hole 14 or an air supply communication groove 14 'as an alternative thereto is provided in the lower mold 19, or the upper portion of the lower mold 19 is fitted. It is also possible to supply air to the molding surface 19a of the lower mold 19 by arranging it on the mold frame portion to be formed or on the inner surface of the mold halves of the upper mold 1 and the lower mold 19.

In this case, the mold release of the cement mortar molded product S after pressure molding can be easily performed by interposing the filtration unit 4, and the upper mold 1 moves or a delivery device (not shown). When the cement mortar molded product S reaches the receiving plate 27 due to the movement of the gas injection holes 2
The gas is injected from 1 to deliver the cement mortar molded product S onto the receiving plate 27.

[0043]

As described above, according to the present invention, since it is not necessary to slidably provide a mold around the upper mold or the lower mold as in the prior art, the upper and lower metal molds are not disturbed by the mold. The air supply communication passage provided on one molding surface of the mold can be provided at the shortest distance. Therefore, suction from the vacuum blower and water squeezing can be performed efficiently.

Further, according to the present invention, since it is not necessary to provide a mold frame vertically movable around either one of the upper mold and the lower mold as in the conventional case, the mold itself has a simple structure and the number of parts can be reduced. A drive source for moving the mold up and down is unnecessary, and even a cement mortar molded product having a complicated shape can be released from the mold without chipping and can be transported by suction.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a first embodiment of the present invention when a raw material is charged.

FIG. 2 is a sectional view showing the same device as a whole.

FIG. 3 is a cross-sectional view showing the same during pressure molding.

FIG. 4 is a sectional view showing a cement mortar molded product at the time of mold release.

FIG. 5 is a sectional view showing a second embodiment of the present invention.

FIG. 6 is a sectional view showing a third embodiment of the present invention.

FIG. 7 is a sectional view showing a fourth embodiment of the present invention.

FIG. 8 is a sectional view showing a fifth embodiment of the present invention.

FIG. 9 is a sectional view showing a sixth embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a conventional apparatus for manufacturing a cement mortar molded product of this type.

[Explanation of symbols]

 1 Upper mold 2 Through hole 3 Suction chamber 4 Filtration unit 14 Air supply communication passage 14 'Air supply communication groove 14 "Air supply communication groove 19 Lower mold 21 Gas injection hole 22 Cylinder 23 Piston

Claims (9)

[Claims] 1. A plurality of through-holes are provided in one molding surface of the upper and lower molds, the through-holes are connected to a vacuum suction means, and one of the other molding molds has a periphery around the molding surface thereof at the time of pressure molding. A cement mortar characterized in that a mold part surrounding a part of the mold is formed, and one mold that can be fitted into the mold part is formed with an air supply communication passage communicating with the molding surface. Molded product manufacturing equipment. 2. A mold releasing device having a gas injection hole is provided on a molding surface of the other mold facing one mold having a large number of through holes formed on the molding surface. The cement mortar molded product manufacturing apparatus according to claim 1. 3. The method according to claim 1, wherein the through hole is formed on a molding surface provided on a lower surface of the upper die, and the air supply communication hole is formed on the upper die. The described cement mortar molded product manufacturing apparatus. 4. The method according to claim 1, wherein the through hole is formed in a molding surface provided on an upper surface of the lower mold, and the air supply communication passage is formed in the lower mold. The described cement mortar molded product manufacturing apparatus. 5. The air supply communication passage is formed by an air supply communication groove formed in the upper mold or the lower mold, as claimed in claim 1, 3, or 4. The described cement mortar molded product manufacturing apparatus. 6. The air supply communication passage is formed by an air supply communication groove in which the other mold is slidably provided on the inner surface of the mold part of the upper mold or the lower mold. The apparatus for producing a cement mortar molded article according to claim 1, claim 3, or claim 4. 7. A mold part in which the air supply communication passage is provided on the outer periphery of a molding surface of one of the upper mold and the lower mold and the other mold so that the upper mold or the lower mold can be fitted. The cement mortar molded product manufacturing apparatus according to claim 1, wherein the device is formed by air supply communication grooves provided on the sliding surfaces facing each other. 8. A drainage pipe is provided at an upper portion of a suction chamber provided in one of the upper die and the lower die so as to be able to communicate with the through hole by guiding the drainage pipe to the upper outside, and the bottom portion of the suction chamber is provided with a drainage pipe. One of claim 1, claim 2, claim 3, claim 4, claim 5, claim 6, or claim 7, wherein the lower part is provided so as to be inclined downward. The described cement mortar molded product manufacturing apparatus. 9. The mold part is divided into several mold component pieces, and at least one of the mold component pieces is substantially horizontal so as to be separable from the remaining mold component pieces. The cement mortar molded article manufacturing apparatus according to claim 1, wherein the cement mortar molded article manufacturing apparatus is provided so as to be movable in any direction.