KR20070096490A - Manufactory system of assembly type manhole and method for fabricating the same - Google Patents

Abstract

An apparatus and a method for manufacturing a manhole assembly are provided to obtain a manhole having a firm structure by compressing a product with strong compression force. An apparatus for manufacturing a manhole assembly comprises a mold part(300), a supplying part(400), a table part(500) and a pressing part(600). The mold part has an opening at an upper portion thereof and has a space in which mortar is received. The supplying part supplies the space with mortar. The table part applies vibration to the entire mold part. The pressing part compresses the mortar which is provided to the mold part. A control box(700) is provided to control the supplying part, table part and pressing part.

Description

Manufacturing system and method for manufacturing prefabricated manholes {Manufactory system of Assembly type manhole and method for fabricating the same}

1 is an exploded perspective view of a prefabricated manhole manufactured by the apparatus and method for manufacturing a prefabricated manhole according to an embodiment of the present invention.

Figure 2 is a perspective view of the prefabricated manhole manufactured by the manufacturing apparatus and manufacturing method of the prefabricated manhole according to an embodiment of the present invention.

3 is a cross-sectional view taken along line IV-IV 'of FIG. 3.

Figure 4 is an exploded perspective view showing an embodiment in which at least one vertical manhole block is inserted into the prefabricated manhole manufactured by the manufacturing device and manufacturing method of the prefabricated manhole according to an embodiment of the present invention.

5 is a perspective view of the assembled manhole according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view taken along the line VI-VI 'of FIG. 5.

7 to 12 are views sequentially illustrating a process of manufacturing a vertical manhole block according to an embodiment of the present invention.

13 is a cross-sectional view showing a process of manufacturing a base manhole block according to an embodiment of the present invention.

14 is a cross-sectional view showing a process of manufacturing the upper manhole block of the manufacturing method and manufacturing method of the prefabricated manhole according to an embodiment of the present invention.

15 is a flow chart illustrating a method of manufacturing a prefabricated manhole according to an embodiment of the present invention.

 (Explanation of symbols for the main parts of the drawing)

100, 200: manhole 110: base manhole block

114: transfer pipe connecting hole 116: reinforced slab

118, 134: upper scott 120: upper manhole block

122, 132: lower spit 126: manhole cover

130: vertical manhole block 140: reinforcement

150: transfer pipe 300, 300 ', 300' ': mold part

310, 310 ', 310' ': out mold 320, 320', 320 '': in mold

330: base ring 400: supply part

420: feeder conveyor 500: table portion

510: mold seating portion 520: seating support beam

530: lift support beam 550: elevator beam

600: press part 610: press frame

620: head ring 630: hydraulic cylinder

700: control box M: mortar

The present invention relates to a manufacturing apparatus and a manufacturing method of a prefabricated manhole, and more particularly to a manufacturing apparatus and a manufacturing method of a prefabricated manhole using a table vibration compacting method.

Conventional manholes are largely divided into two methods: direct construction using direct formwork, and two methods of stacking and assembling ready-made products standardized by KS. Due to the problems caused by the difference, the situation is directed toward a construction method of laminating and assembling the ready-made products according to KS standards.

In addition, when molding the prefabricated manhole, the mortar is poured between the out mold and the in-mold, and the compression force of the mortar is increased by a vibration compacting method. In the conventional manhole construction method, core vibration causing vibration only on the inner part of the product. Use the compaction method. Core vibrating compaction method has low mortar flow, low external vibrating force is transferred to the outer surface part of the product is bad assembly, and the material separation phenomenon appears a lot, so the brittleness of the product.

Therefore, a high vibration force and a strong compression force have good assembly, and there is no material separation phenomenon, a high strength manhole is required.

SUMMARY OF THE INVENTION The present invention has been made in an effort to provide an apparatus for manufacturing a prefabricated manhole, which vibrates a table by vibrating parts to apply vibration to the entire mold part.

In addition, it is to provide a method of manufacturing a prefabricated manhole to produce a strong manhole by compressing the product with a higher compression force in the inner, outer, up, down, left and right of the product by the table vibration method.

Technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

The apparatus for manufacturing a prefabricated manhole according to an embodiment of the present invention for achieving the technical problem, the mold portion and the space portion is formed in the upper portion is formed an opening is formed in the space for accommodating mortar is poured therein It includes a supply unit for supplying mortar to the table portion for providing a vibration force to the entire mold portion and a press portion for compressing the mortar supplied to the mold portion.

Method of manufacturing a prefabricated manhole according to an embodiment of the present invention, the step of placing the mold portion on the top of the table portion and the vibration of the table portion to provide a vibration force to the entire mold portion and the supply portion mortar to the mold portion Casting and pressing a press portion perpendicularly to the mortar and demolding the mortar in the mold portion.

Specific details of other embodiments are included in the detailed description and the drawings.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but can be implemented in various different forms, and only the embodiments make the disclosure of the present invention complete, and the general knowledge in the art to which the present invention belongs. It is provided to fully inform the person having the scope of the invention, which is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. 1 is an exploded perspective view of a prefabricated manhole 100 manufactured by an apparatus and a manufacturing method of a prefabricated manhole according to an embodiment of the present invention, Figure 2 is a manufacturing apparatus of a prefabricated manhole according to an embodiment of the present invention and 3 is a perspective view of the assembled manhole 100 manufactured by the manufacturing method, and FIG. 3 is a sectional view taken along line III-III 'of FIG. 2.

1 to 3, the prefabricated manhole 100 manufactured by the manufacturing apparatus and manufacturing method of the prefabricated manhole according to an embodiment of the present invention is provided at the intersection of the transfer pipe 150 and the lowest ground At least for height adjustment according to the depth of the buried depth of the manhole 100 between the base manhole block 110 and the upper manhole block 120 and the base manhole block 110 and the upper manhole block 120 stacked on the top One or more may be configured to include a vertical manhole block 130 is stacked.

The base manhole block 110 corresponding to the bottom of the manhole 100 has a cylindrical shape with an open top, and prevents sedimentation of wastewater and smoothly flows on the inner bottom thereof. Invert 112 is formed according to the shape. The inner wall of the base manhole block 110 that meets the invert 112 is formed with a transfer pipe connecting hole 114 for connecting the transfer pipe 150 is connected to the transfer pipe 150. In addition, at least one reinforcing slab 116 may be formed on an outer surface of the base manhole block 110 to correspond to the pressure of the ground and to stabilize the seating of the manhole 100. An upper pit 118 is formed on the upper surface at a predetermined height. The upper pit 118 is formed higher than the conventional low spigot (40 mm, 50 mm, 60 mm, 70 mm).

The upper manhole block 120 seated on the upper end of the base manhole block 110 has a lower pit 122 to correspond to the upper pit 118 of the base manhole block 110. The lower pit 122 is also preferably formed at a height corresponding to the upper pit 118. The manhole hole 124 is formed through one side of the top surface, and the seating step 128 may be formed to seat the manhole cover 126 in the circumferential direction around the manhole hole 124.

2 and 3, a vertical manhole block 130 may be installed between the base manhole block 110 and the upper manhole block 120. The vertical manhole block 130 is a cylindrical structure provided to adjust the height of the manhole 100 according to the depth in which the manhole 100 is embedded. The lower manhole block 130 corresponds to the upper pit 118 of the base manhole block 110. The lower pit 132 is formed to protrude to a predetermined height, the upper surface of the upper pit 134 is also formed to protrude to a predetermined height. At least one vertical manhole block 130 is provided and stacked to adjust the height of the manhole 100 according to the depth of the manhole 100 embedded therein. At this time, the base manhole block 110 may be made of a stable form of light down light to withstand the weight of the manhole blocks 120 and 130 stacked on the top.

The manhole 100 configured as described above is coupled to the upper pit 118 formed on the top of the base manhole block 110, the lower pit 132 of the vertical manhole block 130, the vertical manhole block 130 The lower speaker 122 of the upper manhole block 120 is seated on the upper speaker 134. This reduces unnecessary assembly processes and reduces brittleness of the vulnerable joints by high spigots (118, 122, 132, 134).

At this time, the spigot (118, 122, 132, 134) is formed to a height of 100mm or more higher than the conventional pitcott (40mm, 50mm, 60mm, 70mm), when the spigot (118, 122, 132, 134) is too high When assembling, it may be formed by 150mm or less since it may be damaged by interference or carelessness. Preferably it is formed to 110mm or more and 130mm or less so as to correspond to the strain against external stress, and most preferably formed to a height of 115mm is designed to cope with watertightness, separation and prevention of the external ground stress. Therefore, the height of the spigot 118, 122, 132, 134 in the embodiment of the present invention is collectively referred to as 115mm, which is a suitable height, but is not limited thereto.

In addition, when the rubber ring 160 is installed between the manhole blocks 120, 130a, 130b, 130c, 130d, and 130e, the rubber ring 160 is installed while being rolled down when combined to increase watertightness. 134) is further reduced to the depth to increase the water tightness.

On the other hand, since both the in-mold (320) and the out-mold (310) surrounding the mortar (M) for the product in the manufacture of the spigot (118, 122, 132, 134) is vibrated by a high vibration force mortar (M) ) High flow phenomenon, high rotational mortar (M) by the strong compression force of the head ring 620 is good assembly degree and no material separation phenomenon. In addition, it has a high vibration force in the table vibration compaction method different from the core vibration, which is a conventional vibration method, and because the hydraulic head ring 620 is used, the spigots 118, 122, 132, and 134 can be molded high and firmly. have. Therefore, by reinforcing the spigot (118, 122, 132, 134) it is possible to combine with only the pitcott (118, 122, 132, 134). The table vibration compacting method and the head ring 620 will be described later with reference to FIGS. 7 to 12.

Figure 4 is an exploded perspective view showing an embodiment in which one or more vertical manhole block 130 is inserted into the prefabricated manhole manufactured by the manufacturing device and manufacturing method of the prefabricated manhole according to an embodiment of the present invention. That is, as shown in FIG. 4, the vertical manhole block 130 includes vertical manhole blocks 130a, 130b, 130c, 130d, and 130e having different heights, respectively, and satisfies the depth at which the manhole 100 is embedded. At least one block 130a, 130b, 130c, 130d, 130e may be installed. In addition, the height of the vertical manhole block (130a, 130b, 130c, 130d, 130e) can be standardized, easy construction by easy compatibility. In this case, the base manhole block 110 may be formed in a stable form of upper and lower light to withstand the weight of the manhole blocks 120, 130a, 130b, 130c, 130d, and 130e stacked on the upper side as described above.

Embodiments manufactured by the apparatus and method for manufacturing a prefabricated manhole according to one embodiment of the present invention described with reference to FIGS. 1 to 4 are the base manhole block 110, the vertical manhole block 130, and the upper manhole block 120. ), And may also be applied to the case further including the reinforcing bar 140 as shown in FIG. 5. 5 is a perspective view of the assembled manhole 200 according to another embodiment of the present invention, Figure 6 is a VI-VI 'cross-sectional view of FIG. For convenience of description, members having the same functions as the members shown in the drawings of the above embodiment are denoted by the same reference numerals, and thus description thereof is omitted. The prefabricated manhole 200 of this embodiment, as shown in FIGS. 5 and 6, has a basically identical structure except for one embodiment and the following.

That is, the prefabricated manhole 200 according to another embodiment of the present invention includes at least one vertical manhole block 130 and a vertical manhole block 130 seated on top of the base manhole block 110 and the base manhole block 110 seated on the ground ( It may further comprise a reinforcing rod 140 surrounding the upper manhole block 120 and the coupled manhole 200 seated on the top of the 130.

The reinforcing table 140 is formed in a circular shape to correspond to the sphere of the manhole 200, it is made of a hollow so that the seating step 128, the manhole cover 126 is seated. The lower slab insertion groove 142 may be formed at the lower portion of the reinforcing table 140 to avoid interference of the reinforcing slab 116 formed at the lower portion of the base manhole block 110. However, even if the slab insertion groove 142 is not formed, it may be directly seated on the protruding jaw 116a formed in the reinforcing slab 116.

Therefore, by installing the reinforcing rod 140 can withstand the pressure of the ground applied to the connection portion of the manhole (100, 200), to prevent the spigot (118, 122, 132, 134) is destroyed during severe external impact do.

The prefabricated manholes 100 and 200 of the present invention assembled as described above are assembled by placing two manhole blocks on top of the assembled manhole blocks after assembling and connecting two manhole blocks when each manhole block is standardized and produced. By doing so, when the connection holes of the respective manhole blocks do not coincide with each other, there is no hassle of having to match the connecting holes while separating them and stacking them again, thereby improving assembly and construction properties.

In addition, by installing a reinforcing rod to absorb the external force applied to the manhole formed by the pressure of the ground, to provide a more stable manhole.

A manufacturing apparatus and a manufacturing method for manufacturing the manhole blocks 110, 120, and 130 described above will be described in detail below with reference to FIGS. 7 to 15.

7 to 12 are views sequentially showing a process of manufacturing the vertical manhole block 130 of the manufacturing apparatus and manufacturing method of the prefabricated manhole according to an embodiment of the present invention.

As shown in FIG. 7, in order to manufacture the vertical manhole block 130, a mold part 300 serving as a formwork, a supply part 400 supplying a mortar (M) to the mold part 300, and the mold The table unit 500 supporting the unit 300 and providing vibration, the press unit 600 for compressing the mortar (M) supplied to the mold unit 300 with a strong compression force and the supply unit 400, the table unit ( 500 and a control box 700 for controlling the press unit 600 may be configured.

The mold 300 has an insertion hole 312 formed therein, an out mold 310 forming an appearance of the vertical manhole block 130, and inserted into an insertion hole 312 of the out mold 310. In-ring (320) to form the hollow of the vertical manhole block 130 and the base ring is installed on the lower end of the in-mold (320) for forming the lower pit 132 of the vertical manhole block (130) 330 may be configured. The mold part 300 configured as described above forms a predetermined space part 340 between the in mold 320 and the out mold 310 and is seated on the upper end of the table part 500. In addition, the flange 314 is formed on the outer surface of the out mold 310 so as to face left and right so as to easily lift the out mold 310, and the movable rod 316 is fastened to the flange 314.

When the mold part 300 is seated on the table part 500, the vibration part power switch 710 of the control box 700 is turned on to provide vibration force to the entire mold part 300. Here, the fastening means for coupling the mold part 300 to the table part 500 may be various, such as a fixing bolt, a magnetic material, an air chuck, a clamp, but is not limited thereto.

Thereafter, as shown in FIG. 8, the supply unit 400 supplies the mortar M to the predetermined space 340. Wherein the supply unit 400 is a concrete storage hopper (410) for receiving the mortar (M), the feeder conveyor 420 for supplying the mortar (M) flowing out of the concrete storage hopper 410 to the mold unit 300 and It is configured to include an impeller 430 which serves to evenly supply the supplied mortar (M) to the predetermined space portion 340 provided at the dropping point supplied to the mold portion 300 from the feeder conveyor 420. . A support frame 440 is provided to support the feeder conveyor 420 and the concrete storage hopper 410, and the support frame 440 may be seated on the guide rail 450 to move left and right along the guide rail 450. .

When the supply unit power switch 720 of the control box 700 is turned on, power is applied to the supply unit 400 to operate the supply unit 400. Mortar (M) stored in the concrete storage hopper 410 is moved to the feeder conveyor 420 as the lower end of the concrete storage hopper 410 is opened, the feeder conveyor 420 is guide grooves 422 formed on both sides Sliding toward the mold 300 along the end thereof is located at the upper end of the mold 300. Mortar (M) dropped from the concrete storage hopper 410 is supplied to the mold unit 300 by the operation of the feeder conveyor 420. At this time, the mortar (M) is evenly supplied to the predetermined space portion 340 formed between the in mold 320 and the out mold 310 by the impeller 430 provided at the end of the feeder conveyor 420. Here, the table part 500 supporting the mold part 300 increases the fluidity of the mortar (M), the assembly degree is good, and causes a strong vibration to remove the material separation phenomenon. And the lower pitcott 132 of the vertical manhole block 130 is formed to fit the shape of the base ring barrier portion 332 in the predetermined space portion 340, like the A portion.

Table portion 500 is embedded in the table buried groove 555, as shown in Figure 9a, a plurality of mold portion mounting grooves 512 to form and fix the vertical manhole block 130 to be manufactured to a desired diameter The formed seat seating portion 510 and the seat seating portion 510 positioned at the lower end of the seat seating support portion 510 for supporting the mold seating portion 510 are provided. In addition, a lower portion of the seat supporting beam 520 may be provided with a mold seating portion 510 constituting the table 500 and a lift support beam 530 supporting the seating support beam 520. Here, the plurality of elevator beams 550 are fastened to the lift support beams 530 so that the lift support beams 530 move up and down, thereby adjusting the height of the vertical manhole block 130.

On the other hand, the vibration in the table 500 is generated by the vibration unit 540 formed between the lift support beam 530 and the seating support beam 520. As shown in FIG. 9B, the vibrator 540 may include an airbag plate 512 and an airbag 514. Accordingly, as shown in FIG. 9C, the mold is seated by generating a strong vibration force in the seat supporting beam 520 through a process of providing compressed air to the airbag 514 of the vibrator 540 and contracting and expanding the moment. Bubbles of the mortar M supplied to the space part 340 of the mold part 300 fixed to the part 510 are removed and the fluidity is increased.

In addition, as shown in FIG. 9D, the vibrator 540 may be configured in another embodiment. Vibration may also be generated by the eccentric shaft 516 having a central portion shifted by a predetermined interval. When the eccentric shaft 516 is rotated, the cam is moved. Here, both sides of the seating support beam 520 may be provided with an elastic part 518 to increase safety. Therefore, the vibrator 540 that provides vibration to the table 500 may be in various forms, but is not limited thereto.

When the supply of the mortar (M) to the space 340 of the mold unit 300 is finished, the operation of the supply unit 400 is controlled. When the power supply switch 720 of the control box 700 is turned off, the rotating impeller 430 is stopped and the feeder conveyor 420 returns to its original position along the guide groove 422. Thereafter, as shown in FIG. 10A, the mortar M is strongly compressed by the press unit 600. The press unit 600 includes a press frame 610 serving as a body, a head ring 620 positioned at a center side of the press frame 610, and a hydraulic cylinder 630 for raising and lowering the head ring 620. It can be configured to include. A position adjusting member 612 is fixed to the ground at one end of the press frame 610 to serve as a main axis of the press unit 600, and a guide roller 614 is formed at the other end of the press frame 610. In addition, a first fixing rail 616a and a second fixing rail 616b may be formed on the ground to correspond to the guide roller 614. A fixing pin 611 is formed at the other end of the press frame 610 in which the guide roller 614 is formed and inserted into the fixing grooves 617a and 617b formed in the first fixing rail 616a and the second fixing rail 616b. To fix the press frame 610.

After the power supply of the supply unit 400 is turned off and the press unit power switch 730 of the control box 700 is turned on, the fixing pin 611 that fixes the first fixing rail 616a is connected to the first fixing rail ( The press frame 610 is released from the fixing groove 617a of the 616a to rotate the position adjusting member 612 formed at one end of the press frame 610 with the main shaft. The rotating press frame 610 is fixed to the fixing pin 611 is inserted into the fixing groove 617b of the second fixing rail 616b. Then, the mold 300 and the head ring 620 form the same center line and form a coaxial axis. Thereafter, the head ring 620 is vertically lowered by the hydraulic cylinder 630 to strongly compress the mortar M supplied to the space 340 of the mold 300. At this time, as shown in Figure 10b, the head ring 620 is an intermittent movement to form a predetermined angle by the rotating cylinder 632 formed on both sides of the press frame 610 to face each other. Therefore, the high vibration force of the table 500 and the high pressure by the hydraulic cylinder 630 and at the same time the mortar (M) supplied to the space portion 340 of the mold 300 by the intermittent movement by the rotary cylinder 632 ) Is compressed by a strong compression force, the strength of the vertical manhole block 130 itself, as well as higher than the conventional pitcott (132, 134). Here, the upper pit 134 of the vertical manhole block 130 is formed to match the shape of the head ring 620, as shown in Figure 10c. Also, after the mortar (M) is supplied, the wire wire 50 having a predetermined thickness is inserted before the compression to the head ring 620 so that the upper pit 134 and the lower pit 132 of the vertical manhole block 130 are localized. Brittleness can also be prevented.

Here, the vibrating portion of the table 500 in the process of operating the supply unit 400 and the press unit 600, that is, the process of supplying mortar (M) from the supply unit 400 and compressing in the press unit 600 540 continues to operate.

Thereafter, as shown in FIG. 11, the press unit power switch 730 and the vibration unit power switch 710 of the control box 700 are turned off to rotate the press unit 600 to its original position, and the vibration unit ( After the vibration of the 540 is stopped, the band 60 is attached to the movable rod 316 formed on the outer wall of the out mold 310, and the out mold 310 is lifted up by using a crane or a forklift. The compressed mortar M is separated from the in mold 320 together with the out mold 310. Here, a machine that can move a high load is illustrated as a crane or a forklift, but is not limited thereto.

Thereafter, when the mold mortar (M) pressed on the out mold 310 is directly demolded, a vertical manhole block 130 is formed as shown in FIG. 12. In this case, the in-mold 320 may form a narrow upper and lower upper and lower light beams for easier demoulding in the out mold 310.

The manufacturing method of the prefabricated manhole according to the embodiment of the present invention described with reference to FIGS. 7 to 12 describes a manufacturing method for the vertical manhole block 130 in which the upper pit 134 and the lower pit 132 are formed. 13 and 14 may also be applied to the case of the base manhole block 110 and the upper manhole block 120. FIG. 13 is a cross-sectional view illustrating a method of manufacturing a base manhole block 110 in a manufacturing apparatus and a manufacturing method of a prefabricated manhole according to an embodiment of the present invention, and FIG. 14 is a manufacture of a prefabricated manhole according to an embodiment of the present invention. Sectional view showing a method of manufacturing the upper manhole block 120 of the apparatus and manufacturing method.

For convenience of description, members having the same function as the members shown in the drawings for explaining the process of the vertical manhole block 130 are denoted by the same reference numerals, and therefore description thereof is omitted. The process of the prefabricated manhole of this embodiment, as shown in Figs. 13 and 14, is basically the same as the process for the vertical manhole block 130 except for the following.

That is, as shown in FIG. 13, the mold part 300 ′ is formed integrally with the out mold 310 ′ and the in mold 320 ′, and when the mortar M is supplied from the supply part 400, the mold part is provided. Base manhole block 110 is formed to correspond to the shape of (300 '). At this time, the bottom spigot forming part 338 is provided at the bottom of the mold 300 to form the upper pit 118 of the base manhole block 110. Here, as in the process of manufacturing the vertical manhole block 130, the base ring 330 may be installed to form the upper pit 118 of the base manhole block 110, but the in mold 320 ', the out mold ( 310 ') and the base ring 330' are integrated to reduce the assembly labor and simplify the construction method. In addition, the iron wire 50 may be inserted at the time of supplying the mortar M to prevent local brittleness of the upper pit 118.

Then, the tilting device (not shown) is connected to the moving rod 316 formed on the exterior of the mold part 300 ', the mold part 300' is flipped up and down, and directly deformed using a crane or a forklift, etc. Manhole block 110 is formed. Preferably, in order to facilitate demoulding, the inside of the mold part 300 ′ may be given a gradient of a light beam narrowing at a predetermined angle.

In addition, when manufacturing the base manhole block 110, similar to the manufacturing of the vertical manhole block 130, using the vibrating portion 540 of the table 500, by vibrating the mold portion 300 'strongly mortar (M) Increased fluidity of) makes it more robust.

As illustrated in FIG. 14, the upper manhole block 120 includes an integrated mold part 300 ″ of the out mold 310 ″ and the in mold 320 ″, and supplies mortar M to the upper manhole block 120. Can be prepared. The manufacturing method of the upper manhole block 120 may be the same as the base manhole block 110 shown in FIG. In-mold 320 ″ is the same as the diameter of the manhole hole 124 to form the manhole hole 124 of the upper manhole block 120, and is positioned to correspond to where the manhole hole 124 is positioned to protrude. It is formed.

When the tilting device (not shown) is connected to the movable rod 316 formed on the exterior of the mold 300 ″, the mold 300 ″ is flipped up and down, and directly deformed using a crane or a forklift, and the upper manhole. Block 120 is formed.

15 is a flowchart illustrating a process of manufacturing the prefabricated manhole blocks 110, 120, 130 according to an embodiment of the present invention.

First, the mold unit 300 is positioned at the upper end of the table unit 500 (S10), and the table unit 500 is vibrated to provide a vibration force to the entire mold unit 300 (S20).

Thereafter, the supply unit 400 casts mortar (M) on the mold unit 300. At this time, the feeder conveyor 420 of the supply unit 400 is operated to move along the guide groove 422 to feed the feeder conveyor 420. The end of the mold unit 300 is located on the top, the lower portion of the concrete storage hopper 410 is opened so that the mortar (M) falls to the feeder conveyor 420. Then, the mortar M is supplied to the mold unit 300 by the feeder conveyor 420 to operate. In addition, the mortar (M) supplied to the upper end of the mold unit 300 is evenly poured by the rotation of the impeller (430) (S30).

Thereafter, the press unit 600 applies a pressure perpendicular to the mortar (M). Here, the press unit 600, the fixing pin 611 of the press frame 610 is released from the first fixing rail 616a to rotate around the position adjusting member 612, the rotated press unit 600 The fixing pin 611 is fixed to the second fixing rail 616b so that the head ring 620 of the press unit 600 is positioned on the upper portion of the mold 300. Thereafter, the head ring is vertically lowered and intermittently moved by the hydraulic cylinder 630 and the rotating cylinder 632 to compress the mortar M (S40).

Thereafter, the out mold 310 of the mold part 300 is lifted and separated from the in mold 320, and the mortar M pressed onto the out mold 310 is demolded to remove the manhole blocks 110, 120, and 130. ) Is prepared (S50).

Although embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art to which the present invention pertains may implement the present invention in other specific forms without changing the technical spirit or essential features thereof. I can understand that. Therefore, it should be understood that the embodiments described above are exemplary in all respects and not restrictive.

Each manhole according to the invention has also been described as being circular. Although it is expected that the manhole according to the present invention is circular, it is not impossible to use the manhole according to the present invention in a shape other than circular. For example, it may be easily changed to be used in various shapes such as a rectangle or an ellipse. Therefore, the term 'circle' used in the present specification and claims should be understood only as an 'exemplary' specific embodiment.

In addition, the manufacturing method according to the present invention has been described as a process for manufacturing a manhole. Although the manufacturing method according to the present invention is expected to produce a manhole, it is not impossible for the manufacturing method according to the present invention to be used to produce a shape other than the manhole. For example, it may be easily changed to be used in various shapes such as a circular pipe or a drainage track. Therefore, the term 'manhole block' used in the present specification and claims should be understood only as an example of a specific embodiment.

According to the manufacturing apparatus and manufacturing method of the prefabricated manhole according to the present invention as described above, the in-mold and out-mold surrounding the mortar for the manhole block vibrating by the high vibration force in a table vibration compaction method that applies vibration to the entire mold portion Therefore, there is an advantage that the flow phenomenon of mortar is high.

In addition, the hydraulic cylinder-type head ring to compress at a high load is a good assembly force with a strong compressive force, there is an advantage that can be formed high in the upper and lower spokes with a manufacturing method without the material separation phenomenon.

In addition, there is an advantage that the water-expandable rubber ring inserted into the connection part is formed between the upper manhole block and the lower manhole block due to the formation of a strong and high spigot, so that the part that is rolled down is deeply adhered between the assemblies and the watertightness is increased.

Claims (23)

In the manufacturing device of prefabricated manhole to form a strong spigot, A mold part in which an opening part is formed in an upper part and a space part for accommodating mortar being poured therein is formed; A supply part for supplying mortar to the space part of the mold part; A table part providing vibration force to the entire mold part; And Apparatus for manufacturing a prefabricated manhole comprising a press unit for compressing the mortar supplied to the mold unit. The method of claim 1, Apparatus for manufacturing a prefabricated manhole further comprising a control box for controlling the supply, the table and the press. The method of claim 1, wherein the mold portion, An in mold forming an inside of the manhole block; An out mold forming an appearance of the manhole block; And A base ring installed at a lower end of the in mold, The prefabricated manhole manufacturing apparatus is formed in the space portion of the predetermined interval between the in-mold and the out-mold so that the mortar is supplied. The method of claim 3, wherein the mold portion, Apparatus for manufacturing prefabricated manholes in which the in mold, the out mold, and the base ring are integrally formed. The method of claim 1, wherein the table unit, A mold seating part in which a plurality of mold seating grooves are formed; A seating support beam positioned below the mold seating part to support the mold seating part; A lift support beam positioned below the seat support beam to support the seat support beam; And And an oscillating part positioned between the lift support beam and the seating support beam to generate the vibration. The method of claim 5, wherein the vibrating unit, An air bag in which compressed air is sucked and discharged to expand and contract to provide the vibration to the seating support beam; And Apparatus for manufacturing a prefabricated manhole comprising an airbag plate for supporting and fixing the airbag. The method of claim 5, wherein the vibrating unit, An eccentric shaft, the center of which is displaced to perform cam motion; And Apparatus for manufacturing a prefabricated manhole comprising an elastic portion for providing an elastic force to the seating support beam. The method of claim 1, wherein the press unit, Positioning member is formed on one side is fixed to the ground, rotatable press frame around the positioning member; A head ring installed at the center of the press frame to compress the mortar supplied to the mold unit; A hydraulic cylinder installed at an upper end of the head ring to raise and lower the head ring; A rotating cylinder installed to face both sides of the press frame to intermittently move the head ring at a predetermined angle; And Apparatus for manufacturing a prefabricated manhole comprising a fixing part for fixing the press frame. The method of claim 8, wherein the fixing unit, A first fixing rail provided on a lower surface of the other side of the press frame and having a first fixing groove; And And a second fixing rail provided on the bottom surface of the other side portion of the press frame which is rotated about the position adjusting member and formed with a second fixing groove. A guide roller and a fixing pin are provided at the other side of the press frame, and the guide roller is slid along the inner surface of the first fixing rail or the second fixing rail, and the first fixing groove or the first fixing groove is formed by the fixing pin. 2 Manufacturing device for prefabricated manholes fixed in fixing grooves. The method of claim 8, wherein the head ring, Apparatus for manufacturing a prefabricated manhole is formed so that the cross section in contact with the shape of the spigot. The method of claim 1, wherein the pitcott, An upper spigot formed to protrude by 100 mm to 150 mm on an upper outer circumferential surface of the prefabricated manhole; And Apparatus for manufacturing a prefabricated manhole comprising a lower spigot formed to protrude by 100mm ~ 150mm on the lower inner peripheral surface of the prefabricated manhole. The apparatus of claim 11, wherein the upper and lower spokes are formed at a height of 110 mm to 130 mm. The apparatus of claim 12, wherein the upper and lower spokes have a height of 115 mm. The method of claim 1, wherein the mortar is, Apparatus for manufacturing a prefabricated manhole made of any one material selected from the group consisting of a permeable material consisting of cement, sand, gravel and stone powder or a combination thereof. In the method of manufacturing a prefabricated manhole forming a solid scott Positioning the mold on the top of the table; Vibrating the table to provide a vibration force to the entire mold; Supplying the mold to mortar; Pressing a press unit perpendicularly to the mortar; And Method of manufacturing a prefabricated manhole comprising demolding the mortar in the mold portion. The method of claim 15, wherein pouring the mortar, Operating a feeder conveyor to move along the guide groove such that an end of the feeder conveyor is positioned at the top of the mold part; Opening the lower opening of the concrete storage hopper to move the mortar to the feeder conveyor; Pouring the mortar into the mold part by the feeder conveyor; And Dispensing the mortar when the mortar is fed from the feeder conveyor while the impeller is rotating. The method of claim 15, wherein applying pressure to the mortar, The pressing unit is a fixing pin of the press frame is released from the first fixing rail to rotate around the positioning member; Fixing the fixing pin of the press frame to the second fixing rail by the press unit; A head ring is vertically lowered by a hydraulic cylinder to compress the mortar; And A head ring manufacturing method of the prefabricated manhole comprising the step of intermittent movement by the rotating cylinder. The method of claim 15, wherein after pressing the press unit to the mortar, The press unit, wherein the fixing pin of the press frame is released from the second fixing rail to rotate around the position adjusting member; And The press unit, the manufacturing method of the prefabricated manhole further comprising the step of fixing the fixing pin of the press frame to the first fixing rail. The method of claim 15, wherein demolding the mortar, Lifting the mold out of the mold part to separate the mold from the mold; And Demolding the mortar that is pressed onto the out mold. 20. The method of claim 19, after the step of lifting up and separating the out mold from the in mold, The manufacturing method of the prefabricated manhole further comprising the step of inverting the out mold up and down using a tilting device. The method of claim 15, wherein the scott An upper spigot formed to protrude by 100 mm to 150 mm on an upper outer circumferential surface of the prefabricated manhole; And Method of manufacturing a prefabricated manhole comprising a lower spigot formed to protrude by 100mm ~ 150mm on the lower inner peripheral surface of the prefabricated manhole. 22. The method of claim 21, wherein the upper and lower spokes are formed at a height of 110 mm to 130 mm. 23. The method of claim 22, wherein the upper and lower spokes are formed to a height of 115 mm.

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