KR101685075B1 - Method for Manufacturing Precast Concrete Member and Apparatus for Manufacturing it - Google Patents

Abstract

The present invention relates to a pretension-type precast concrete member manufacturing apparatus. The pretension-type precast concrete member manufacturing apparatus according to the present invention includes: a steel wire guide placed in multiple molds (10: 11, 12, 13) linearly placed between steel wire tension patches (20, 30) and a fixed reaction force patch (40) on a precasting bed to avoid interference with a steel bar constituting a steel bar net body (RA) and disposed such that a steel wire (P) can linearly pass through steel wire passage holes (11a, 11b, 12a, 12b, 13a, 13b) provided in front and back faces of the respective molds (10: 11, 12, 13); and steel wire propelling means for propelling multiple steel wires (P: P1, P2, P3, P4, P5, P6) from a front mold face to a back mold face such that the steel wire linearly passes through the steel wire passage holes (11a, 11b, 12a, 12b, 13a, 13b) provided in the front and back faces of the respective molds (10: 11, 12, 13) through the steel wire guide.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a precast concrete member,

The present invention relates to a pre-cast concrete member manufacturing method and a manufacturing apparatus for implementing the method, wherein a plurality of molds (molds) are arranged in a row on one pre-casting bed, (Tensions) are sequentially passed through a plurality of molds (molds) arranged in a row, and then the concrete is cast and cured in a state in which tension is applied between the tension line and the reaction force band before and after the precasting bed When completed, the pre-cast concrete member into which the pre-tension is introduced can be completed in each of the molds.

First, in order to simultaneously manufacture a precast concrete member having a plurality of pre-tension introduced on one pre-casting bed, a pre-cast concrete member manufacturing method and apparatus according to the prior art, A plurality of molds 10, 11, 12 and 13 are arranged in a row and a plurality of dies (prestressing material) P to be pre-tensioned in precast concrete are arranged in a row ), And the concrete pouring and curing work is performed in a state in which a tensile force is applied between the steel wire tension rods (20, 30) before and after the pre-casting bed and the fixed reaction force rods (40) And a pre-cast concrete member into which pre-tension is introduced through the tensioned steel wire (P) at each of the molds (10: 11, 12, 13) A is used.

However, in order to simultaneously manufacture, for example, three members, the steel wire tensioning rods 20 and 30, the first mold 11, the second mold 12, and the third mold 13 and the fixed reaction force band 40 The PC steel wire P is arranged in a straight line so that the PC steel wire P can be sequentially penetrated. In the conventional general manufacturing apparatus or manufacturing method, since the reinforcing net RA is assembled into the mold and the PC steel wire P is disposed, There is a problem in that it takes a long time to place the steel wire due to interference with the reinforcing bars and the labor cost is increased and the efficiency of production can not be obtained.

Even in the case of producing a post-tensioned precast concrete member of a bondless structure, there is no great difficulty in arranging the steel wire because a sheath for guiding and guiding the steel wire tension material is disposed between the steel wire nettings, , The tensile force introduced into the steel wire is removed after the curing and curing of the steel wire and the attached concrete in a state in which the tensile force is applied to the steel wire by the pretension and the compressive force is introduced into the concrete around the steel wire, In the conventional methods and apparatuses for producing the pre-cast concrete member to buffer the tensile stress generated at the lower portion of the neutral axis of the concrete member used as the reinforcing member by the previously introduced compressive force, A room that relies on manpower while avoiding interference by I can not find a solution outside.

In this way, it is also impossible to arrange a plurality of steel wires at the same time in case of dependence on the workforce, which is a great obstacle to improvement of productivity.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and it is an object of the present invention to provide a pre-cast concrete member manufacturing method and apparatus,

In a process of assembling a reinforcing net into a plurality of molds arranged in a line on a precasting bed and arranging a steel wire, the steel wire passes through the steel wire passing through the front and the back of each mold while avoiding interference with the reinforcing bars constituting the steel net So that the ball can be easily passed along a path connecting linearly.

It is another object of the present invention to provide a manufacturing method that allows a plurality of steel wires to be simultaneously disposed when a plurality of steel wires are disposed in a mold, and an apparatus that can be used in such a manufacturing method.

In order to solve the technical problems of the present invention as described above, the present invention provides a pre-cast concrete member manufacturing method,

Placing a plurality of molds in a line between the steel wire pulling band and the fixed reaction force band on a precasting bed;

Assembling a reinforcing net into the plurality of molds;

Placing a steel wire guide through which a plurality of steel wires pass through each of the molds so that the steel wires can pass linearly through the steel wire passing holes provided on the front and back surfaces of the respective molds while avoiding interference with the reinforcing bar constituting the steel reinforcing net Wow;

A steel wire guiding step of arranging the steel wire passing holes passing through the steel wire guide and provided on the front and rear surfaces of the respective molds so that the steel wire passes linearly;

Removing the steel wire guide from the inside of each of the molds during or after the step of advancing the steel wire advancing step in each of the molds;

Tensioning and fixing the steel wire between the steel wire tension bar and the fixed reaction force bar on the precasting bed;

Placing and curing concrete in the mold; And

And removing the pre-cast concrete by removing the mold to complete the production of the precast concrete precast concrete member.

Further, in another aspect of the pre-cast concrete member manufacturing apparatus of the present invention,

A plurality of molds arranged in a line between the steel wire tension bar and the fixed reaction force bar on the precasting bed to prevent the interference with the reinforcing bars constituting the steel bar network while linearly passing the steel wire passing holes provided on the front and back surfaces of the respective molds A steel wire guide installed so as to allow the steel wire to pass through; And

And a steel wire propeller for driving a plurality of steel wires from the front surface of the mold to the rear surface of the mold so that the steel wire passes linearly through the steel wire passing holes provided on the front and back surfaces of the respective molds through the steel wire guides. do.

According to a more preferred embodiment of the present invention, in order to perform a straight sliding movement along the mold bottom surface of the steel wire guide which is driven in the mold longitudinal direction from a plurality of molds provided on the pre-casting bed, Preferably, a propelling slider is provided.

Further, a bumper guard is additionally provided on the outside of the propelling slider in order to exclude the mold side interference or the interference with the side reinforcing bars of the steel wire guide, which is propelled in the mold longitudinal direction, from a plurality of molds provided on the precasting bed More preferable.

According to the present invention, the steel wire guide and the steel wire propeller are installed so that the steel wire can linearly pass through the steel wire passing holes provided on the front and back surfaces of the respective molds while avoiding interference with the reinforcing bars constituting the steel wire net, In the process of assembling the reinforcing net in the process of laying the PC steel wire and interfering with the assembled steel bar, it takes a lot of time and excessive labor to place the steel wire, so that the labor cost is increased and the production cost is increased, In addition, by allowing a plurality of steel wires to be simultaneously driven, it is possible to improve the economical efficiency, and further, it is possible to increase the convenience of the installation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a basic structural view of a manufacturing apparatus implementing a pre-cast concrete member manufacturing method according to the prior art; FIG.
FIG. 2 is an exploded perspective view showing a state in which a steel wire guide according to a first embodiment is installed as a preferred embodiment of the present invention.
FIG. 3A is an exploded perspective view showing a detailed configuration of a steel wire guide according to the first embodiment shown in FIG. 2, a propelling slider and a bumper guard installed on a bottom surface thereof.
FIG. 3B is an exploded perspective view showing a combined state of the steel wire guide 100A according to the first embodiment shown in FIG. 2 and FIG. 3A and a joining process of the propelling slider and the bumper guard.
FIG. 4A is a view showing an operating state of the steel wire guide according to the first embodiment shown in FIG. 2, in which steel wires pushed by a steel wire propeller are driven along a steel wire guide, Fig.
4 is a view showing an operation state of the steel wire guide according to the first embodiment shown in Fig. 2, in which the steel wire guides are removed in a state in which the steel wires advance in the longitudinal direction inside the mold and reach the rear surface of the mold, FIG. 5 is a view showing an operation state in which the steel wires are further propelled to pass through the front portion of the next molder through FIG.
FIG. 4C is a view illustrating a state in which the front face of the steel wire guide, the pushing slider, and the advancing direction of the bumper guard assembly are lifted (raised) when the steel wire guide is interfered with by the bottom reinforcing bars in the steel wire pushing state shown in FIGS. 4A and 4B Fig.
FIG. 5A is an exploded perspective view showing a state in which the steel wire guide 100B according to the second embodiment of the present invention is installed, FIG. 5B is an operating state view showing a state in which a steel wire is propelled and arranged in the steel wire guide, FIG. 5D is a state view showing a state in which the steel wire guide is removed from the mold after the steel wire is propelled and arranged to the rear face of the mold, and FIG. 5D is a view showing a state where the steel wire guide passes through the steel wire passing hole, Which is a state in which the steel wires are further propelled.
6A and 6B are an exploded perspective view and a partially assembled state view showing the state of the steel wire guide 100C according to the third embodiment of the present invention and the mounting slider provided for movement of the mold slider.
FIG. 6C is a perspective view illustrating an operation state of the steel wire guide according to the third embodiment shown in FIGS. 6A and 6B, in which the steel wire is propelled and arranged along the steel wire guide by the steel wire propeller.
FIG. 6D is an operating state diagram showing a state in which the front face of the steel wire guide in the traveling direction of the steel wire guide is lifted (lifted) in the steel wire propulsion state in the mold shown in FIG. 6C.
6E is a state view showing a state in which the steel wire guide is removed from the inside of the mold after the steel wire is pushed to the rear side of the mold through the steel wire pushing state inside the mold shown in FIG. 6C.
7 is a view showing an embodiment of a steel wire propeller which can be used in the present invention.
Fig. 8A shows a steel wire guide 100A according to the first embodiment described above as a fourth embodiment of the present invention, and a rail arranged on the mold floor as an alternative structure for supporting the sliding movement thereof, Fig. 3 is an exploded perspective view showing a detailed structure of a sliding member provided on a bottom surface of a steel wire guide so as to be able to run.
FIG. 8B is a perspective view of the assembled state of the steel wire guide and the installed state of the sliding member and the rail in the fourth embodiment shown in FIG. 8A.
FIGS. 9A and 9B are views showing the operating states of the fourth embodiment shown in FIGS. 8A and 8B. FIG. 9A and FIG. 9B are perspective views showing a state in which a steel wire is propelled and arranged along a steel wire guide by a steel wire propeller.
FIG. 9C is a view showing a state in which the steel wire guide and the front face of the sliding member in the advancing direction of the sliding member are lifted (lift) when the steel wire guide is interfered with by the bottom reinforcing bars in the steel wire pushing state shown in FIGS. 9A and 9B State diagram.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. 2 to 9C illustrate embodiments of the present invention. However, the arrangement and operation of the steel wire tension bar and the reaction force bar are not limited to the steel wire tension bar 20 30, and the reaction force fixture 40, respectively.

According to a preferred embodiment of the present invention, from the viewpoint of the method of the present invention, the present invention provides a pre-cast concrete member manufacturing method,

Placing a plurality of molds (10: 11, 12, 13) in series between the steel wire tensioning rods (20, 30) and the fixed reaction force rods (40) on a precasting bed;

Assembling a reinforcing net (RA) within the plurality of molds (10, 11, 12, 13);

The steel wire passing holes 11a, 11b, 12a, 12b, 13a, and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12, 13) while avoiding interference with the reinforcing bars constituting the reinforcing net RA Placing a steel wire guide (100A, 100B, or 100C) through which a plurality of steel wires pass through each mold so that the steel wires (P1, P2, P3, P4, P5, P6) can pass linearly;

The steel wire passing holes 11a, 11b, 12a, 12b, 13a and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12 and 13) through the steel wire guides 100A, 100B, So as to allow the steel wire (P) to pass therethrough;

Removing the steel wire guides (100A, 100B, or 100C) inside each of the molds (10: 11, 12, 13) during or after the steel wire propulsion step in each of the molds;

Tensioning and fixing the steel wire P between the steel wire tension rods 20, 30 and the fixed reaction force bar 40 on the precasting bed;

Placing and curing concrete in the mold (10: 11, 12, 13); And

Removing the molds (10: 11, 12, 13) and separating each precast concrete to complete the production of pre-cast concrete precast concrete members.

Here, it is preferable that a plurality of steel wires P1, P2, P3, P4, P5, P6 are simultaneously driven in the steel wire propulsion step.

In addition, the steel wire propulsion step may be carried out by pushing the steel wire or the steel wire guide from behind the steel wire traveling direction as well as pulling the steel wire or steel wire guide by using a hoist or the like in front of the steel wire advancing direction.

From the viewpoint of the apparatus invention for realizing the above-described pre-cast concrete member manufacturing method in the field, the present invention is not limited to the embodiments (the first embodiment, the second embodiment, the third embodiment, As an example, in a pre-cast concrete member manufacturing apparatus of a pre-tension type as shown in Figs. 2 to 9C,

(10, 11, 12, 13) arranged in a line between the steel wire tension brackets (20, 30; see FIG. 1) and the fixed reaction force bar The steel wire passing holes 11a, 11b, 12a, 12b, 13a and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12, 13) (100A, 100B, or 100C) installed to allow the steel wire (P) to pass therethrough; And

The steel wire passing holes 11a, 11b, 12a, 12b, 13a and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12 and 13) through the steel wire guides 100A, 100B, And a steel wire propelling means for propelling a plurality of steel wires (P: P1, P2, P3, P4, P5, P6) from the front surface of the mold to the rear surface of the mold so as to allow the steel wire to pass through the mold.

1) and the fixed reaction force band 40 (see FIG. 1) can be constructed in various structures other than the installation structure as shown in FIG. 1, it will be understood by those skilled in the art And therefore the scope of the present invention is not limited to the structure exemplified in the drawings, and various types of steel wire tensioning devices (pullers) may be provided for the steel wire tension straps as well.

Hereinafter, among the preferred embodiments of the steel wire guide constituting the pre-cast concrete member manufacturing apparatus according to the present invention, the steel wire guide 100A according to the first embodiment is attached, and Figs. 2 to 4C Will be described in more detail with reference to FIG.

The steel wire guide 100A according to the first embodiment has a structure in which the steel wire tension rods 20 and 30 and the plurality of strands passing through the steel wire passing holes 11a on the front surface A plurality of steel wires P are fixed with a predetermined interval so that the steel wires P can pass through the steel wire passage holes 11b formed in the back surface (rear end: right side in the drawing) of the first mold 11 So that it can be slidably driven in the mold.

As shown in an exploded perspective view showing the detailed structure of FIG. 3A and an assembled state perspective view of FIG. 3B, the steel wire guide 100A according to the first embodiment is provided with the molds 11, 12, P1, P2, and P3 passing through the upper row among the first steel through holes 11a, 12a, and 13a provided through the front portion (left side surface portion of the drawing) A plurality of first thermal steel wire passing through holes 120b (①, ②, and ③ steel wire positions) opened upward at a corresponding position are formed in a line-through structure along the steel wire propelling direction, (P4, P5, P6) passing through the lower row among the first steel through holes (11a, 12a, 13a) provided through the first steel through holes (120a: ④, ⑤, ⑥ steel wire position) of a plurality of open-formed second steel wire guide through holes The jig main body 120 having a face according to a line through the structure;

A jig lower plate 110 disposed at a lower portion of the jig main body 120 and having a plurality of second openings formed upwardly at corresponding positions thereof to support the lower surfaces of the second thermal steel wires P4, P5, A jig lower plate portion 110 having a thermal wire supporting groove 110a;

A jig upper plate 130 disposed at an upper portion of the jig main body 120 and having a plurality of first rows opened downward at corresponding positions thereof to support the upper surfaces of the first thermal ribs P1, A jig upper plate part 130 having a steel wire supporting groove 130a; And

The jig main body part 120 and the jig upper plate part 130 which are assembled so as to bind the steel wires together so as to be integrally fastened to each other, Such as through bolts and lock nuts).

In addition, as shown in the figure, the straight line guide 100A and the straight line P coupled by the plurality of molds provided on the pre-casting bed in the longitudinal direction of the mold, For the sliding movement, two parallel driving sliders 160 are provided on the steel wire guide 100A, more specifically the bottom surface of the lower jig plate 110, in the direction of the steel wire propulsion, The slider body 160 includes a slider body portion 160S disposed on the bottom surface of the steel wire guide 100A or 100C and a slider body portion 160S so as to be fitted and engaged with a distal end portion of a selected one of the steel wires P1 and P3, The slider main body 160 is formed so as to be supported over the side portions of the selected portions of the steel wires P4 and P6 among the front end portions 160S1 and 160S3 curved toward the front Wherein the two parallel pushing sliders 160 are disposed at the front ends 160S1 and 160S3 by elastic bands 160SM in a mutually resilient manner So that the center of gravity of the steel wires P1 and P3 is not scattered but is concentrated at the center so as to obtain better straightness.

In addition, as illustrated in addition to the pushing slider 160 in the drawing, the interference with the side surface of the mold 10 of the steel wire guide 100A, which is propelled in the mold longitudinal direction, from a plurality of molds provided on the pre- It is preferable that a bumper guard 180 is further provided on the outer side of the propelling slider 160 and the bumper guard 180 is provided on the front side of the propelling slider 160 in order to prevent interference with the vertical reinforcing bars, And the rear ends 180B1 and 180B3 of the bumper body 180B are curved so as to be supported over the side portions of the selected portions of the steel wires P1 and P3, It is more preferable that the two pushing sliders 160 and the bumper guard 180 are rotatably connected by the hinge pin 170 at the overlapping portion The.

Here, the pushing slider 160 and the bumper guard 180 can be easily formed on the site by curving and deforming the synthetic resin pipe, or they can be formed of different materials.

A plurality of steel wires P are welded to the front surface portion (the left surface portion of the mold shown in the drawing) of the first mold 11 by using the steel wire guide 100A according to the first embodiment, 4A and 4B, the process of passing through the first steel through hole 11a provided in the first mold 11 and entering the first mold 11 simultaneously is performed by the steel wire propeller 150, A plurality of steel wires P1, P2, P3, P4, P5 and P6 forming the steel wire guide 100A are pushed along the rail 160 in a state of being bound by the steel wire guide 100A and parallel to the inside of the first mold 11 The state of being placed without any unwanted interference or collision with the reinforcing bar or the mold wall surface constituting the reinforcing net (RA) assembled around it is progressed, and the state of being placed on the rear portion of the first mold 11 shown on the right side of the drawing The steel wires P1, P2, P3, P4, P5, and P6 pass through the provided second steel wire passing holes 11b The tip end portions of the finished steel wires P1, P2, P3, P4, P5 and P6 again pass through the first steel wire passing hole 12a of the adjacent second mold 12, (The rear surface of the mold) along the steel wire propelling direction.

In this way, when the molds (10: 11, 12, 1) on the pre-casting bed quickly pass through the steel wires P while maintaining parallelism, the work of arranging the steel wire in the mold is completed. The steel wire guide 100A is disassembled and removed inside the molds 10 (11, 12, 13). In contrast, during the progress of the steel wire advancing step in each mold, the steel wire guide almost reaches the rear portion of the mold The steel wire guide may be removed from each of the molds.

Next, the steel wire P is tensed and fixed between the steel wire tension rods 20, 30 and the fixed reaction force bar 40 on the pre-casting bed to pour concrete into the molds 10, 11, 12, 13 The molds 10, 11, 12 and 13 are detached to separate the pre-cast concrete, thereby completing the production of the pre-cast concrete member.

On the other hand, FIG. 4C is a cross-sectional view of the steel wire guide 100A (FIG. 4A) when the steel wire guide 100A undergoes the progressive interference by the bottom reinforcing bars in the steel wire pushing state shown in FIGS. 4A and 4B, And the propelling slider 160 (including the bumper guard 180 when the bumper guard 180 is further engaged) lift up the propulsion direction front face portion of the bumper guard 180 The other end of the lifting wire 120w fixedly coupled at one end to the high [high] first height position of the rear portion (the left side surface of the steel wire guide shown in the drawing) in the traveling direction of the steel wire guide 100A is connected to the steel wire guide 100A Through the guide wire through hole 120e having a relatively low [second] height position and provided on the front side of the advancing direction of the mold 11 (the right side portion of the steel wire guide shown in the figure) Degree The steel wire guide 100A is installed by being passed through the wire discharge hole 11e provided at a relatively high first height position of the mold (the right side portion of the molded mold) And the other end portion of the lifting wire 120w taken out of the mold 11 is pulled by pulling the other end portion of the lifting wire 120w taken out of the mold 11 when the proceeding of the propelling slider 160 in the forward propelling direction is interrupted, Between the fixed joint portion at the relatively high first height position of the direction rear portion (the left side surface of the steel wire guide shown in the drawing) and the wire discharge hole 11e provided at the first height position, The portion of the guide wire through hole 120e through which the middle portion of the lifting wire 120w passes, that is, the forward direction front face portion (right side face portion) of the pushing slider 160 and the wire guide 100A, So that it is possible to escape such an interference trouble situation.

In the steel wire guide 100A according to the first embodiment described above, a plurality of strands of end portions of the steel wires are joined together using one integrated jig, and the front portion (the left side portion of the mold shown in the drawing) The steel wire guide 100B according to the second embodiment will be described with reference to FIGS. 5A to 5C, which are similar to those of FIGS. 5A to 5C, The first steel wire passage holes 11a, 12a and 13a and the rear face portion (the right side face of the mold shown in the drawing) arranged on the front face portion (the left face portion of the mold shown in the drawing) of the molds 10 The second steel wire passage holes 11b, 12b, and 13b disposed in the first and second steel wire passages 12a and 12b are independently disposed in a state of being spaced apart from each other by a predetermined interval, Place a few wires in one rib together It is possible to appropriately use the steel wire rope in the first mold 11 when the steel wire rope is inserted into the first mold 11 and the reinforced barreled wire RA previously assembled into the first mold 11 The steel wire guide 100B according to the second embodiment formed of a material such as a PVC pipe is placed on the front side of the first mold 11 (the left side surface of the mold shown in the figure) And the second steel wire passage holes 11b, 12b, 13b formed on the rear side (the right side of the mold shown in the drawing) of the first mold 11 and the holes 11a, 12a, 5A), a steel wire P inserted into the first mold 11 by using a propelling means such as a steel wire propeller 150, and the like is placed on the first mold 11 Is moved into the steel wire guide 100B without interfering with the reinforcing bars so that the rear portion of the first mold 11 (See FIG. 5B), the steel wire guide 100B of the pipe structure is removed from the first mold 11 by separating from the steel wire P, and further, as shown in FIG. 5D (The right side surface of the mold shown in the figure) of the first mold 11 and the front surface portion (the left side surface of the mold shown in the figure) of the second mold 12 adjacent to the rear surface portion The process of repeatedly pushing the steel wire P through the steel wire guide 100B previously installed in the second mold 12 is repeated so that the interference of the steel reinforcing bar 40 up to the fixed reaction force band 40 It is possible to easily arrange a plurality of steel wires.

The operation process after the completion of the wire arrangement is not different from the first embodiment described above, so that redundant description will be avoided.

As an alternative embodiment of the steel wire guide 100A according to the first embodiment described above, there can be provided a third embodiment shown through FIGS. 6A to 6E, which shows a part of the ends of a plurality of strands A first implementation in which the steel wire is propelled by sliding commonly toward the rear portion (the right side portion of the mold shown in the figure) of the front portion of the mold (the left side portion of the mold shown in the figure) using one integrated jig It has the same structure as the courtesy structure, but simplifies its structure.

12 and 13 as shown in FIGS. 6A and 6B showing an assembled state diagram of the steel wire guide 100C according to the third embodiment as well as an exploded perspective view showing the installation state of the steel wire guide, (P1, P2, P3) passing through the upper row among the first steel through holes (11a, 12a, 13a) provided through the front portion (left side surface portion of the drawing) 12, 13) of the molds (11, 12, 13) having a plurality of first thermal steel wire passing through holes (120b: 12a, 13a provided at the corresponding positions to support the lower second thermal steel wire P4, P5, P6 passing through the lower one among the first steel wire through holes 11a, 12a, A plurality of second thermal steel wire passing-through grooves (120a: ④, ⑤, ⑥ steel wire position) Because the jig main body 120 with a line through the structure; And

When a plurality of steel wires P are seated in the first thermal steel wire passing through hole 120b and the second hot wire passing hole 120a of the jig main body part 120, (140C).

On the other hand, the pushing slider 160 used in the first embodiment can be used in the present embodiment as shown in the drawing. The construction and operation of the pushing slider 160 are the same as those of the first embodiment, (100A), so that the repetitive description will be avoided. 6A to 6E show a bumper guard 180 and a hinge pin 170 which can be used in an additional configuration other than the propelling slider 160, Are not shown for the sake of avoiding the complexity of the drawings. However, even in the third embodiment according to the concept of the present invention, in the collision of the binding bars 140C with the reinforcing bars or mold wall surfaces disposed on both sides of the steel wire- The bumper guard 180 and the hinge pin 170 may be adopted to prevent the hinder pin 170 from being disturbed by the hinge pin 170. [

The operation of the steel wire guide 100C according to the third embodiment is shown in FIG. 6D. The steel wire P is guided by the steel wire propeller 150 along the steel wire guide 100C and the pushing slider 160 The steel wire P is easily moved to the rear side of the first mold 11 (the right side portion of the mold shown in the drawing) 4b of the first mold 11, and after removal of the wire guide 100C and the like from the inside of the mold may be performed in this state, The front end of the steel wire P that has been taken out to the outside via the first wire passage hole 12a of the second mold 12 is inserted into the front portion of the second mold 12 The steel wire P is extended (substantially the same as Fig. 4B) To be made available.

The structure and operation of the lifting operation of the front surface portion (the right side portion of the steel wire guide shown in the drawing) of the steel wire guide 100A according to the first embodiment has been described with reference to FIG. 4C , The steel wire guide 100C according to the third embodiment has the same configuration as the steel wire guide 100A according to the first embodiment and can realize the same operating condition as shown in FIG. 6E.

Meanwhile, the steel wire propeller 150, which can be used as the steel wire propulsion unit in the present invention, may be variously adopted, and the steel wire propeller 150 proposed as one preferred embodiment of the present invention is shown in FIG. 7 It is preferable that each of the steel wires P is disposed outside the tip end portion of the first mold 11 so as to be pushed between the pair of rotating bodies 520 rotating in opposite directions away from each other with a predetermined interval, And the rotational motions of the pair of rotating bodies 520 may be realized through a pair of gear bodies 510. [

Alternatively, the steel wire propulsion means usable in the present invention may be constructed such that the steel wire guide 100A according to the first embodiment or the steel wire guide 100C according to the third embodiment, which binds each steel wire, And the sliding movement of the steel wire in the forward driving direction can be provided by pulling it by using a hoist or the like.

Hereinafter, among the preferred embodiments of the steel wire guide constituting the pre-cast concrete member manufacturing apparatus according to the present invention, the steel wire guide 100A according to the first embodiment is slidably moved along the steel wire propelling direction A fourth embodiment adopting an alternative configuration to the configuration including the propelling slider 160 described above as a configuration will be described in more detail with reference to FIGS. 8A to 8C.

The steel wire guide 100A according to the first embodiment constituting the fourth embodiment has a structure in which the steel wire tension brackets 20 and 30 and the front surface of the first mold 11 A plurality of steel wires P passing through the steel wire passing holes 11a are passed through the steel wire passing holes 11b formed in the back surface (rear end: right side in the figure) of the first mold 11 It is preferable that the steel wire P is provided as a steel wire binding promoting jig which is fixed while being kept at a predetermined interval so as to be slidably propelled in the mold.

In order to realize such a jig structure, as shown in the exploded perspective view showing the detailed configuration of Fig. 8A and the assembled state perspective view of Fig. 8B, the steel wire guide 100A is fixed to the front surface of the molds 11, 12, In order to support the upper first thermal steel wires P1, P2, P3 passing through the upper row among the first steel through holes 11a, 12a, 13a provided through the upper side (Left side surface portion of the drawing) of the molds 11, 12, and 13 with a plurality of first thermal steel wire passing through grooves 120b (positions of ①, ② and ③ steel wire) And a second plurality of second steel wires P4, P5, P6 passing through the lower row among the first steel through holes 11a, 12a, 13a provided through the first steel through holes 11a, 12a, (120a: ④, ⑤, ⑥ steel wire position) according to the direction of the steel wire running A jig body portion 120 having a through-hole structure;

A jig lower plate 110 disposed at a lower portion of the jig main body 120 and having a plurality of second openings formed upwardly at corresponding positions thereof to support the lower surfaces of the second thermal steel wires P4, P5, A jig lower plate portion 110 having a thermal wire supporting groove 110a;

A jig upper plate 130 disposed at an upper portion of the jig main body 120 and having a plurality of first rows opened downward at corresponding positions thereof to support the upper surfaces of the first thermal ribs P1, A jig upper plate part 130 having a steel wire supporting groove 130a; And

The jig main body part 120 and the jig upper plate part 130 which are assembled so as to bind the steel wires together so as to be integrally fastened to each other, Such as through bolts and lock nuts).

In the present embodiment (fourth embodiment), unlike the propelling slider 160 and the additional components used in the first embodiment described above, as shown in Figs. 8A to 8C, a plurality of For the linear sliding motion along the bottom surface of the mold 10 of the steel wire guide 100A and the steel wire P which are pushed in the mold longitudinal direction from the inside of the mold, The rail 260 is installed so that the rail 260 can be rotated by a predetermined angle through the hinge 250a provided on the bottom surface of the steel wire guide 100A and more specifically on the bottom surface of the jig lower plate 110, The sliding member 250 may be provided such that the rail 260 can be made of two parallel parallel rails as shown in the figure, It may be fitted between the cavity-holding member (260a) in order to maintain.

In the fourth implementation using the steel wire guide 100A according to the first embodiment implemented by the steel wire binding propelling jig and using the sliding member 250 and the rail 260 as the sliding moving means of the steel wire guide 100A, A plurality of steel wires P pass through the first steel wire passage hole 11a provided on the front surface of the first mold 11 (the left side surface in the drawing) and enter the first mold 11 simultaneously, A plurality of steel wires P1, P2, P3, P4, P5, and P6 forming the steel wire P by the steel wire propeller 150 are inserted into the steel wire guide 100A as shown in FIGS. 8A and 8B, And is moved along the rail 260 in parallel with the inside of the first mold 11 while being held by the rail 260 without any undesired interference or collision with the reinforcing bar or the mold wall constituting the reinforcing net RA The state in which it is placed is advanced, and the first When the steel wires P1, P2, P3, P4, P5 and P6 are passed through the second steel wire passing holes 11b provided on the rear surface of the steel wire 11 (before passing the second steel wire passing hole 11b) The front ends of the passed steel wires P1, P2, P3, P4, P5 and P6 are again urged to pass through the first steel wire passage hole 12a of the adjacent second mold 12 , The steel wire and the steel wire guide are propelled toward the front side (back side of the mold) along the steel wire propelling direction using another steel wire guide inside the second mold 12.

When the steel plates P are quickly passed through the molds 10 (11, 12, 1) on the pre-casting bed while keeping the steel wires parallel to each other, the steel wire arranging operation is completed. The steel wire guides 100A are disassembled and removed in the respective molds 10 (11, 12, 13) as described above (the sliding members 250 and the rails 260 are also disassembled and removed) The steel wire P having been disposed between the steel wire tension brackets 20 and 30 and the fixed reaction force bar 40 on the pre-casting bed is tensed and fixed so that the concrete is inserted into the molds 10 (11, 12 and 13) After completion of curing, the molds 10 (11, 12, 13) are removed to separate the precast concrete, thereby completing the production of the precast concrete precast concrete member.

On the other hand, FIG. 8C is a cross-sectional view of the steel wire guide 100A (see FIG. 8A) and FIG. 8B in which the steel wire guide 100A Of the slide member 250 and the lift direction of the slide member 250 from the rail 260. This operation is performed in the forward direction of the forward direction of the steel wire guide 100A The other end portion of the lifting wire 120w fixedly coupled at one end with the fixed engaging portion 120d at the relatively high [high] first height position of the wire guide 100A (the left side surface portion of the steel wire guide) (Right side portion of the steel wire guide in the drawing) and passed through a guide wire through hole 120e having a relatively low [low] first height position so that the rear portion of the mold 11 (the right side portion of the mold shown in the drawing) The wire guide 100A and the sliding member 250 are moved forward to the outside of the mold 11 by passing through the wire discharge hole 11e provided at a high height first height position, The other end portion of the lifting wire 120w taken out of the mold 11 is pulled up to pull the wire guide 100A in the advancing direction of the steel wire guide 100A At a relatively high (high) first height position at a relatively high [high] first height position and at a relatively high [high] first height position at the rear side (the right side of the mold shown in the figure) The portion of the guide wire through hole 120e passing through the middle portion of the lifting wire 120w, that is, the portion of the wire guide 100A, The traveling direction of the material 250, the front portion (right side portion of the wire guide of the drawing) and be brought up upwardly from the rail 260, and thus makes it possible to escape the interference fails.

The sliding member 250 and the rail 260 described as the fourth embodiment can be used not only for the steel wire guide A according to the first embodiment but also for the steel wire guide C according to the third embodiment In order to avoid redundant description, a detailed description thereof will be omitted.

In order to facilitate a better understanding of the construction and operation of the present invention, it is to be understood that the present invention is not limited to the embodiments illustrated in the drawings, And it should be understood by those skilled in the art that such inconsistency will not affect the interpretation of the scope of the present invention.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

10 (11, 12, 13): mold
20, 30: Tension band of steel wire
40: Fixed reaction force band
RA:
11a, 12a, 13a: first steel wire passing hole
11b, 12b, 13b: a second steel wire passing hole
100A, 100B, 100C: Steel wire guide
150: Steel wire propeller
160: Propulsion slider
180: Bumper guard

Claims (13)

A pre-cast concrete member manufacturing method in a pre-
Placing a plurality of molds (10: 11, 12, 13) in series between the steel wire tensioning rods (20, 30) and the fixed reaction force rods (40) on a precasting bed;
Assembling a reinforcing net (RA) within the plurality of molds (10, 11, 12, 13);
The steel wire passing holes 11a, 11b, 12a, 12b, 13a, and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12, 13) while avoiding interference with the reinforcing bars constituting the reinforcing net RA Placing a steel wire guide (100A, 100B, or 100C) through which a plurality of steel wires pass through each mold so that the steel wires (P1, P2, P3, P4, P5, P6) can pass linearly;
The steel wire passing holes 11a, 11b, 12a, 12b, 13a and 13b provided on the front and back surfaces of the respective molds 10 (11, 11, 12 and 13) through the steel wire guides 100A, 100B, So as to allow the steel wire (P) to pass therethrough;
Removing the steel wire guides (100A, 100B, or 100C) inside each of the molds (10: 11, 12, 13) during or after the steel wire propulsion step in each of the molds;
Tensioning and fixing the steel wire P between the steel wire tension rods 20, 30 and the fixed reaction force bar 40 on the precasting bed;
Placing and curing concrete in the mold (10: 11, 12, 13); And
And removing the pre-cast concrete by removing the mold (10: 11, 12, 13) to complete the production of the pre-tensioned precast concrete member. Method of manufacturing a concrete member. The pre-cast concrete member manufacturing method according to claim 1, wherein a plurality of steel wires (P1, P2, P3, P4, P5, P6) are simultaneously driven in the steel wire propulsion step. delete A pre-cast concrete member manufacturing apparatus in a pre-tension type,
(10, 11, 12, 13) arranged in a line between the steel wire tension rods (20, 30) and the fixed reaction force band (40) on the precasting bed, 11b, 12a, 12b, 13a, 13b provided on the front and rear surfaces of the respective molds 10 (11, 12, 13) while avoiding interference with the steel wires A steel wire guide installed so as to be able to rotate; And
A plurality of steel wires 11a, 11b, 12a, 12b, 13a and 13b provided on the front and rear surfaces of the respective molds 10, 11, 12 and 13 through the steel wire guides so as to linearly pass the steel wires, (P: P1, P2, P3, P4, P5, P6) from the front surface of the mold to the rear surface of the mold, and
The steel wire guide
In order to support the upper first thermal steel wires P1, P2 and P3 passing through the upper row among the first steel wire through holes 11a, 12a and 13a provided through the front portions of the molds 11, 12 and 13, A plurality of first thermal steel wire passing through holes 120b (①, ②, and ③ steel wire positions) opened upward at a corresponding position are formed in a line-through structure along the steel wire propelling direction, And a second plurality of second steel wires P4, P5, P6 passing through the lower row among the first steel through holes 11a, 12a, 13a provided through the first steel through holes 11a, 12a, A jig main body portion 120 having a thermal steel wire passage through-hole groove 120a (④, ⑤, ⑥ steel wire position) in a line-through structure in accordance with a steel wire propelling direction;
A jig lower plate 110 disposed at a lower portion of the jig main body 120 and having a plurality of second openings formed upwardly at corresponding positions thereof to support the lower surfaces of the second thermal steel wires P4, P5, A jig lower plate portion 110 having a thermal wire supporting groove 110a;
A jig upper plate 130 disposed at an upper portion of the jig main body 120 and having a plurality of first rows opened downward at corresponding positions thereof to support the upper surfaces of the first thermal ribs P1, A jig upper plate part 130 having a steel wire supporting groove 130a; And
The jig main body part 120 and the jig upper plate part 130 which are assembled so as to bind the steel wires together so as to be integrally fastened to each other, And a plurality of prefabricated precast concrete members, each of the prefabricated concrete members being provided as a steel wire guide (100A). A pre-cast concrete member manufacturing apparatus in a pre-tension type,
(10, 11, 12, 13) arranged in a line between the steel wire tension rods (20, 30) and the fixed reaction force band (40) on the precasting bed, 11b, 12a, 12b, 13a, 13b provided on the front and rear surfaces of the respective molds 10 (11, 12, 13) while avoiding interference with the steel wires A steel wire guide installed so as to be able to rotate; And
A plurality of steel wires 11a, 11b, 12a, 12b, 13a and 13b provided on the front and rear surfaces of the respective molds 10, 11, 12 and 13 through the steel wire guides so as to linearly pass the steel wires, (P: P1, P2, P3, P4, P5, P6) from the front surface of the mold to the rear surface of the mold, and
The steel wire guide
In order to support the upper first thermal steel wires P1, P2 and P3 passing through the upper row among the first steel wire through holes 11a, 12a and 13a provided through the front portions of the molds 11, 12 and 13, A plurality of first thermal steel wire passing through holes 120b (①, ②, and ③ steel wire positions) opened upward at a corresponding position are formed in a line-through structure along the steel wire propelling direction, And a second plurality of second steel wires P4, P5, P6 passing through the lower row among the first steel through holes 11a, 12a, 13a provided through the first steel through holes 11a, 12a, A jig main body portion 120 having a thermal steel wire passage through-hole groove 120a (④, ⑤, ⑥ steel wire position) in a line-through structure in accordance with a steel wire propelling direction; And
When a plurality of steel wires P are seated in the first thermal steel wire passing through hole 120b and the second hot wire passing hole 120a of the jig main body part 120, Wherein the pre-cast concrete member is provided as a steel wire guide (100C) comprising a base (140C). The method according to claim 4 or 5,
For the linear sliding movement along the bottom surface of the mold 10 of the steel wire P and the steel wire guide 100A or 100C which is pushed in the mold longitudinal direction in a plurality of molds provided on the precasting bed, Or < RTI ID = 0.0 > 100C) < / RTI >
Each of the pushing sliders 160 has a slider body portion 160S disposed on the bottom surface of the steel wire guide 100A or 100C so as to be engaged with a distal end portion of a selected one of the steel wires P1 and P3 The slider body 160S is formed so as to be supported over the front end portions 160S1 and 160S3 curved forward from the slider body portion 160S and across the side portions of the selected steel wires P4 and P6 of the steel wire P And two end portions 160S4 and 160S6 curved rearward and the two parallel pushing sliders 160 are elastically connected to each other by elastic bands 160SM at the front ends 160S1 and 160S3 Of the pre-cast concrete member. The method according to claim 6,
In order to eliminate the interference with the bottom surface obstacle of the mold 10 of the steel wire guide 100A or 100C which is propelled in the mold longitudinal direction from inside a plurality of molds provided on the precasting bed, the progress of the steel wire guide 100A or 100C The other end portion of the lifting wire 120w fixedly coupled at one end by the fixed engaging portion 120d at the relatively high first height position of the direction rear face portion is provided in the forward direction front portion of the steel wire guide 100A or 100C, Passed through the guide wire through hole 120e having a second low height position and passed through the wire discharge hole 11e provided at a relatively high first height position on the rear side of the mold 11 so as to be taken out of the mold 11 And further comprising a lifting wire 120w,
When the progress of the steel wire guide 100A or 100C and the pushing slider 160 in the forward driving direction is interfered by the bottom reinforcing bar or the like, the other end of the lifting wire 120w taken out of the mold 11 is pulled out So that the tightening of the lifting wire 120w between the fixed engagement portion 120d at the relatively high first height position of the rear direction of the steel wire guide 100A or 100C and the wire discharge hole 11e provided at the first height position The steel wire guide 100A formed with the guide wire through hole 120e passing through the intermediate portion of the lifting wire 120w and the pushing slider 160 coupled thereto are formed so as to be lifted upward Wherein the pre-cast concrete member is a pre-cast concrete member. The method according to claim 6,
In order to exclude side interference of the mold 10 or interference with the side reinforcing bars of the steel wire guides 100A or 100C which are propelled in the mold longitudinal direction from inside the plurality of molds provided on the precasting bed, A bumper guard 180 is additionally provided on the outside, and
The bumper guard 180 is disposed such that the bumper body portion 180B is laterally disposed so as to surround the propelling slider 160 on the front and side surfaces thereof and the rear ends 180B1 and 180B3 thereof are disposed on a selected portion And the bumper guard 180 and the bumper guard 180 are connected to each other by a hinge pin 170 so as to be pivotally connected to the bumper guard 180. [ Wherein the pre-cast concrete member is a pre-cast concrete member. 9. The method of claim 8,
In order to eliminate the interference with the bottom surface obstacle of the mold 10 of the steel wire guide 100A or 100C which is propelled in the mold longitudinal direction from inside a plurality of molds provided on the precasting bed, the progress of the steel wire guide 100A or 100C The other end portion of the lifting wire 120w fixedly coupled at one end by the fixed engaging portion 120d at the relatively high first height position of the direction rear face portion is provided in the forward direction front portion of the steel wire guide 100A or 100C, Passed through the guide wire through hole 120e having a second low height position and passed through the wire discharge hole 11e provided at a relatively high first height position on the rear side of the mold 11 so as to be taken out of the mold 11 And further comprising a lifting wire 120w,
When the progress of the steel wire guide 100A or 100C and the pushing slider 160 in the forward driving direction is interfered by the bottom reinforcing bar or the like, the other end of the lifting wire 120w taken out of the mold 11 is pulled out So that the tightening of the lifting wire 120w between the fixed engagement portion 120d at the relatively high first height position of the rear direction of the steel wire guide 100A or 100C and the wire discharge hole 11e provided at the first height position The guide wire 100a and the pushing slider 160 combined with the guide wire through hole 120e through which the intermediate portion of the lifting wire 120w passes are formed so as to maintain the horizontal state, Wherein the pre-cast concrete member is formed to be lifted upward. The method according to claim 4 or 5,
For the linear sliding movement along the bottom surface of the mold 10 of the steel wire P and the steel wire guides 100A or 100C which are driven in the mold longitudinal direction from inside a plurality of molds provided on the precasting bed, The rail 260 is installed on the whole or part of the mold length on the bottom surface of the mold and is rotatable by a predetermined angle through the hinge 250a provided on the bottom surface of the steel wire guide 100A or 100C, The sliding member 250 is provided so that the sliding member 250 can be slid along the rail 260 and the rail 260 is composed of two parallel rails and the spacing member 260a is interposed Wherein the pre-cast concrete member manufacturing apparatus comprises: delete A pre-cast concrete member manufacturing apparatus in a pre-tension type,
(10, 11, 12, 13) arranged in a line between the steel wire tension rods (20, 30) and the fixed reaction force band (40) on the precasting bed, 11b, 12a, 12b, 13a, 13b provided on the front and rear surfaces of the respective molds 10 (11, 12, 13) while avoiding interference with the steel wires A steel wire guide installed so as to be able to rotate; And
A plurality of steel wires 11a, 11b, 12a, 12b, 13a and 13b provided on the front and rear surfaces of the respective molds 10, 11, 12 and 13 through the steel wire guides so as to linearly pass the steel wires, (P: P1, P2, P3, P4, P5, P6) from the front surface of the mold to the rear surface of the mold, and
The steel wire propelling means is disposed outside the first mold front end portion and is arranged to push each of the steel wires P between the rotating bodies 520 rotating in mutually opposite directions in a state where the steel wires P are spaced apart from each other by a predetermined distance, Wherein the pre-cast concrete member is formed by a propeller (150). [7] The apparatus as claimed in claim 6, wherein the steel wire propelling means is provided such that a steel wire guide (100A or 100C) binding each steel wire is pulled from the front of the steel wire propelling direction, Wherein the pre-cast concrete member manufacturing apparatus comprises:

Images