JP2762248B2 - Manufacturing method and equipment of concrete block with color pattern - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a concrete block having a color pattern and an apparatus therefor.

[0002]

2. Description of the Related Art Concrete blocks mass-produced by immediate demolding are frequently used for block walls, retaining walls and the like. Since the surface is unpleasant, the product which has been released from the mold and cured is broken at a predetermined dividing plane, and the broken surface is often used as the product surface. Some people use cosmetic materials only for the fractured surface. In addition, a method has been developed in which after the retaining wall is constructed, its surface is covered with a plastic patterned formwork and concrete is poured. Further, although it is not known whether or not the process is performed, there was also a thought that a pigment was applied to the inner surface of the mold and transferred to the filled concrete.

[0003]

As described above, there has been a long-felt desire to improve a concrete block that is scathing, but the present inventors have found that the pattern is not a fixed pattern as printed on the surface of the block, but rather a little. I thought about producing different color patterns. Two color methods were considered, one using a concrete ground and a decorative material (colored granules), and the other using a pigment sprayed on a concrete ground. The present invention embodies the latter.

[0004]

SUMMARY OF THE INVENTION A method for producing a concrete block with a color pattern according to the present invention is a method for directly charging a material to a concrete hopper for forming a concrete block, or a moving hopper for carrying the material into the mold every time. At this time, the material is dropped continuously or intermittently so that it falls down, and the appropriate amount of pigment is sprayed or sprayed to the patterning position of the material in a timely manner, and the color is applied to the surface of the finished product block. It is characterized in that the pattern by the coloring is made to appear.

[0005] In a method of manufacturing a concrete block in which a plurality of blocks are integrally formed and then divided by breaking, and the divided surface is used as a product surface, a movable hopper for immediately transferring a material to a mold form or a mold form each time. When putting materials into
Drop the material avoiding the planned dividing position, meanwhile, spray or spray an appropriate amount of pigment to the planned dividing position as appropriate,
By coloring the above-mentioned material that has collapsed laterally from the adjacent portion, the pattern by the coloring appears on the surface that is the above-mentioned broken surface of the finished product block.

The apparatus for manufacturing a concrete block with a color pattern according to the present invention is a block manufacturing apparatus for feeding materials directly from a fixed concrete hopper to a concrete block forming mold for immediate removal of a concrete block or via a moving hopper once each time. A device for injecting or spraying a required amount of pigment along the inner wall of the moving hopper or the formwork or along the surface to be divided after the concrete is dropped from the stationary hopper to the moving hopper or the formwork. It is characterized by.

The spraying or spraying device includes a spraying nozzle attached to an upper edge of the moving hopper, and a device horizontally below the stationary hopper above the inner wall of the formwork or the surface to be divided after the mold is removed. With an angled roof attached to it and a jet nozzle or spray port arranged in a row below it, or a cylinder vertically provided inside the stationary hopper, and attached downward at the lower end of the cylinder. Those with a spray nozzle or spout are recommended.

[0008]

[Function] It is easy to form a printed pattern on the surface of a concrete product by various methods. However, printing is expensive and tasteless. The present invention paints a pattern on a concrete ground with a pigment by a special means of spraying or spraying the pigment while the concrete is dropped from a stationary hopper to a formwork or a moving hopper. Since it is known which side of the inside of the formwork or moving hopper will be the surface of the product block, the pigment is sprayed on the concrete falling there or the concrete falling and rising. Even if you drop the concrete in the same way each time and spray the pigment in the same way, a product with exactly the same pattern cannot be made.
In particular, when spraying at the time of supplying material to the moving hopper, the pattern shifts and spreads when concrete in the colored portion is dropped from the moving hopper to the formwork. Therefore, a different pattern is obtained each time. Moreover, the concrete used,
The taste of the material is similar.

[0009] When the concrete is dropped from the stationary hopper, the pigment can be blown into any position if the concrete is dropped so that the concrete is not piled up but dropped by a vibrator or a speed adjuster attached to the hopper. However, if the concrete is dropped avoiding the position where the pigment is injected, and the concrete is sprayed to the place where the concrete collapses, there is no problem even if the concrete falls. This method is particularly effective when there is a planned division position at the center of the mold. The feature of the manufacturing apparatus of the present invention lies in the method of providing a pigment jetting and spraying apparatus. If a nozzle or the like is provided along the inner wall of the movable hopper or the formwork, a pattern appears on the side surface of the product block, and if the nozzle is directed along the surface to be divided after demolding, a pattern appears on the division surface of the divided product. Pigment spraying and dispersing equipment may be directed obliquely downward from the upper edge of the moving hopper, may be lined downward under the chevron roof just below the stationary hopper, or attached to the lower end of the vertical cylinder inside the stationary hopper, etc. Dodge and spray the falling concrete.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2 and 3 are explanatory views in the case where a pattern is formed on a side surface of a product block. The first is an instant mold release form. In this case, the movable hopper 2 receives the concrete material C from the stationary hopper 3 and moves onto the form 1 as shown in FIG. 3a is a gate plate for opening and closing the opening at the lower end of the stationary hopper, and its driving fluid pressure cylinder and the like are omitted. Reference numeral 6 denotes a deck on which the movable hopper 2 is slid.

The moving hopper 2 has a pigment injection nozzle 4 at its upper edge.
The pigment G is jetted from the nozzle 4 along the inner wall of the moving hopper 2 while the stationary hopper 3 is dropping concrete relatively calmly by the vibrator 5 and the internal speed adjuster. The injected pigment G is supplied to the moving hopper 2
As the concrete C dropped into the pile rises from the lower layer to the upper layer, it comes closer to the near side to form a stained belt as shown in FIG. Although FIG. 2 is a plan view, the pigmented bands are not visible, but are drawn with broken lines to show their location along the inner wall. The pigment may be liquid or powdery as long as it can be sent through the feed pipe 4a and sprayed or sprayed from the nozzle 4.

FIG. 3 shows a state in which the colored band of the pigment G of the concrete C dropped from the moving hopper 2 into the form 1 is slightly diffused. The concrete C piled up above the upper surface of the mold 1 is scraped when the moving hopper 2 returns to the position shown in FIG. Since the dyed band of the pigment G in the mold 1 of FIG. 3 is located along the inner wall of the mold, when the mold is immediately removed from the mold and curing is completed, the pattern of the pigment stained band on the product surface is similar to that of FIG. Exit at Providing a plurality of injection nozzles 4, using different types of pigments, using them simultaneously, increasing the number of colors, changing the position, changing the injection timing, intermittently, changes the pattern The same applies to the embodiments described later.

FIG. 4 et seq. Show an embodiment in which a product is broken at a position to be divided and divided into two parts, each of which has a broken surface as a product surface. FIG. 4 shows a state in which the gate plate 3a of the stationary hopper 3 is opened by the fluid pressure cylinder 3b and concrete C is being poured into the moving hopper 2, and the side surface is shown in FIG.
FIG. 5 shows the planned division position A. The spray nozzles 4 for the pigment G are arranged below the chevron roof 7 and are directed downward, so that the blowing pressure may be lower than spraying, rather than spraying. The concrete C falling from the stationary hopper 3 is divided right and left because of the mountain-shaped roof 7 right above the planned dividing position A. In other words, the pigment G falls while avoiding the planned division position A. However, since the pigment G falls to the position where the lateral collapse collapses and reaches the planned division position A, the dye is deeply dyed.

In the embodiments of FIGS. 4 and 5, the mountain-shaped roof 7 is provided above the concrete dividing position A in order to prevent the concrete from directly descending to the dividing position A. In the embodiments of FIGS. A vertical tube portion 8 is set up inside the hopper 3 so that concrete C does not enter the tub 3 from the beginning.
Since the pigment G nozzle 4 is provided downward at the lower end of the vertical cylindrical portion 8, the concrete C that has fallen away from the planned dividing position A collapses sideways in the moving hopper 2, and as shown in FIG. When it comes to A, it is colored there by pigment G. In this embodiment, as can be seen from FIG. 8, the pigment is supplied not to the entire length of the scheduled cutting position A but to a part thereof. that's all,
Although a few embodiments have been described, it goes without saying that the present invention can be variously changed and applied depending on the implementation conditions within the scope of the gist. The material to be colored with the pigment may be referred to as concrete or, in short, any of various materials for so-called concrete blocks, locally used materials, and composite materials made by an immediate demolding method.

[0015]

According to the present invention, a pigment is sprayed from a stationary hopper to a concrete dies for concrete block production, or a moving hopper to the molds, while the concrete is being dropped. A completely new pattern making method was proposed, in which a color pattern was made at the position where The material is supplied to the instant demolding form for each product, and each time the pigment is sprayed, the pattern of the product is slightly different for each product. In particular, when a moving hopper is interposed, the pattern spreads when the sheet is transferred to the formwork, so that the pattern is further changed, resulting in a feeling that cannot be obtained by printing.

Further, since the pigment of the present invention is mainly sprayed and sprayed by a nozzle, it is possible to increase the number of colors by simply preparing a number of sets of a pigment tank, a feed pipe, and a nozzle.
You can easily create a wide variety of patterns by spraying, changing the position, or intermittently from several places. According to the present invention, it is possible to mass produce inexpensively colored concrete blocks with a colored pattern, and the effect of opening new applications is great.

[Brief description of the drawings]

FIG. 1 is an elevational view of one embodiment of the present invention.

FIG. 2 is a plan view of FIG.

FIG. 3 is an elevational view when the moving hopper of FIG. 1 has reached a position on a mold;

FIG. 4 is an elevation view of another embodiment.

FIG. 5 is an explanatory side view of FIG. 4;

FIG. 6 is an elevation view of yet another embodiment.

FIG. 7 is an explanatory side view of FIG. 6;

FIG. 8 is a plan view of FIG. 6;

[Explanation of symbols]

 1 Formwork 2 Moving hopper 3 Stationary hopper 4 Nozzle

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B28B 13/02 B28B 1/14

Claims (6)

(57) [Claims] When a material is charged into an instant mold release mold for forming a concrete block, or a movable hopper that carries the material into the mold every time, the material is continuously or intermittently dropped so as to fall down. A color pattern characterized by spraying or spraying an appropriate amount of a pigment onto a predetermined position of a material to be patterned in a timely manner so that the pattern is formed on the surface of the finished product block. Concrete block production method. 2. A method for producing a concrete block in which a plurality of blocks are integrally formed and then fractured and divided, and the divided surface is used as a product surface. When charging the material into the hopper, drop the material avoiding the planned dividing position, during which time spray or spray an appropriate amount of pigment to the planned dividing position, to the material that has collapsed sideways from the adjacent part. A method for producing a concrete block with a colored pattern, characterized in that a pattern by the coloring is formed on the surface of the finished product block, which is the fractured surface, by coloring. 3. A block manufacturing apparatus for feeding material directly from a fixed concrete hopper to a concrete block forming instantaneous demolding form, or via a moving hopper at each time, comprising: a moving hopper or a form from the stationary hopper; Manufacturing concrete blocks with a color pattern, characterized in that the concrete block is equipped with a device for spraying or spraying a required amount of pigment along the inner wall of the moving hopper or formwork or along the surface to be divided after demolding while dropping concrete. apparatus. 4. The apparatus according to claim 3, wherein the spraying or spraying device includes a spray nozzle attached to an upper edge of the moving hopper. 5. The apparatus according to claim 3, wherein the spraying or spraying device is a chevron mounted horizontally below the stationary hopper and above the inner wall of the formwork or the surface to be separated after the mold is removed. An apparatus for manufacturing a concrete block having a color pattern, comprising: a roof; and spray nozzles or spray ports arranged in a row below the roof. 6. The apparatus according to claim 3, wherein the apparatus for spraying or spraying comprises: a cylinder vertically provided inside the stationary hopper; and a spray nozzle or a nozzle downwardly attached to a lower end of the cylinder. An apparatus for producing a concrete block with a color pattern, comprising a sprinkling port.