KR100913357B1 - Manufacturing device for cable bolt - Google Patents

Abstract

A manufacturing device of a cable bolt is provided to form a diameter, length and width of a bulb correctly formed on the cable bolt, and to offer produce the cable bolt having excellent productivity with simple structure. A manufacturing device(100) of a cable bolt includes the followings: a base(110) moving a jig to a vertical direction; a pressure jig part(120) clamping a steel wire(200), and combined on the base movably; an opposing jig part(180) clamping the steel wire, and fixed on the base; a plurality of moving jig parts(160) clamping the steel wire; a pressing unit(150) moving a jig; and a driving unit compressing the pressure jig part.

Description

Cable Bolt Manufacturing Equipment {MANUFACTURING DEVICE FOR CABLE BOLT}

The present invention relates to a cable bolt manufacturing apparatus, and more particularly to a cable bolt manufacturing apparatus that can accurately form the diameter, length and spacing of the bulb formed in the cable bolt.

Cable bolts are bored rocks and drilled into rock drilling machines when rock conditions are unstable, such as various civil construction-related basic processes (ground stabilization) and underground spaces, slopes, tunnels, etc. It is a device to fix pumice or loose rock to the floor by supporting the movement of the rock.

As a conventional cable bolt, a deformed bar (deformed bar) having a diameter of 25 mm is mainly used. Such a deformed bar has not only a weak strength but also a heavy unit weight (kg / m). . In addition, the conventional release bar has a lot of difficulties in inserting into the drilled hole when the straight drilling is not possible due to the influence of rock joints during drilling for construction.

In order to solve the shortcomings of the deformed bar, a cable bolt having a bulb formed in the middle of the strand is recently used, and to accurately form the size, length and spacing between the bulbs formed in the strand. Attempts are being made.

The present invention provides a cable bolt manufacturing apparatus that can accurately form the diameter, length and spacing of the bulb formed in the cable bolt.

The present invention provides a cable bolt manufacturing apparatus that can easily change the diameter, length and spacing of the bulb formed in the cable bolt.

The present invention provides a cable bolt manufacturing apparatus having a simple structure and excellent productivity.

Cable bolt manufacturing apparatus according to an aspect of the present invention, the base jig fixed to the base, and the opposite jig portion for clamping the strand, the opposing jig portion is located, the clamping the strand wire in the direction of the opposite jig portion on the base It includes a pressing jig portion that is compressed. The opposing jig portion has a lower opposing jig fixed to the base, an upper opposing jig engaged with the lower opposing jig, and the pressing jig part is a lower pressurizing jig movably coupled to the base, and an upper pressurizing jig engaged with the lower pressurizing jig. It is provided. And the lower facing jig and the upper facing jig have opposite receiving grooves which communicate with the opposite bulb grooves and the opposite bulb grooves, respectively, and a part of the strand is inserted, and the lower pressing jig and the upper pressing jig are respectively pressurized bulb grooves and pressing bulb grooves, It is provided with a pressure receiving groove in communication with a portion of the strand is inserted. Further, when the pressing jig portion is pressed in the direction of the opposing jig portion, a bulb is formed inside the opposing bulb groove and the pressing bulb groove.

Embodiments of a cable bolt manufacturing apparatus according to the present invention may have one or more of the following features. For example, the opposite bulb groove may be formed to be enlarged at the end of the opposite storage groove, the pressing bulb groove may be formed to be expanded at the end of the pressure storage groove. And the pressing bulb groove and the opposing bulb groove may be formed to be gradually expanded toward the end. In addition, the diameter of the pressure receiving groove and the opposite storage groove may be formed corresponding to the strand.

One of the upper facing jig and the lower facing jig may include a guide pin, and the other of the upper facing jig and the lower facing jig may include a guide hole into which the guide pin is inserted. One of the upper pressing jig and the lower pressing jig may include a guide pin, and the other of the upper pressing jig and the lower pressing jig may include a guide hole into which the guide pin is inserted.

And further comprising a moving jig portion movably coupled to the base between the pressing jig portion and the opposing jig portion, wherein the moving jig portion includes a moving upper opposing jig and a moving lower opposing jig corresponding to the upper opposing jig and the lower opposing jig, respectively. The moving jig unit may include a moving upper pressing jig and a moving lower pressing jig corresponding to the upper pressing jig and the lower pressing jig, respectively.

The movable upper opposing jig and the movable upper pressing jig are mutually coupled by the upper connecting member, and the movable lower opposing jig and the movable lower pressing jig are mutually coupled by the lower connecting member, and the upper connecting member and the lower connecting member are the same length. It can have

The upper connecting member may be coupled to a pressing unit for pressing the moving upper opposing jig and the moving upper pressurizing jig into the moving lower opposing jig and the moving lower pressing jig. In addition, the movable upper opposing jig and the movable upper pressing jig may have coupling holes into which the upper connecting member is inserted, respectively, and the movable lower opposing jig and the movable lower pressing jig may include coupling holes into which the lower connecting member is inserted.

The upper connection member may be detachably inserted into the coupling hole, and the lower connection member may be detachably inserted into the coupling hole.

The upper facing jig, the lower facing jig, the upper pressing jig and the lower pressing jig may all have the same shape.

The present invention can provide a cable bolt manufacturing apparatus that can accurately form the diameter, length and spacing of the bulb formed in the cable bolt.

The present invention can provide a cable bolt manufacturing apparatus that can easily change the diameter, length and spacing of the bulb formed in the cable bolt.

The present invention can provide a cable bolt manufacturing apparatus having a simple structure and excellent productivity.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to specific embodiments, it should be understood to include all transformations, equivalents, and substitutes included in the spirit and scope of the present invention. In the following description of the present invention, if it is determined that the detailed description of the related known technology may obscure the gist of the present invention, the detailed description thereof will be omitted.

The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "have" are intended to indicate that there is a feature, number, step, operation, component, part, or combination thereof described in the specification, and one or more other features. It is to be understood that the present invention does not exclude the possibility of the presence or the addition of numbers, steps, operations, components, components, or a combination thereof.

The present invention relates to a cable bolt manufacturing apparatus for forming a bulb in a strand formed by twisting several strands of steel wire. In general, a stranded wire is mainly a product having a diameter of 15.2 mm made by twisting seven steel wires and a product having a diameter of 21.9 mm made by twisting a steel wire of 17 strands. In this embodiment, but exemplified a strand of 15.2mm diameter made by twisting the seven steel wires, the present invention can be applied to the steel wire having a variety of diameters and the number of steel wires.

1 is a schematic view showing a cable bolt manufacturing apparatus 100 according to an embodiment of the present invention. In FIG. 1, portions indicated by dotted lines are formed in the pressing bulb grooves 124 formed in the upper pressing jig 122 and the lower pressing jig 134, and the upper facing jig 182 and the lower facing jig 184, respectively. The opposite bulb groove 124 'is shown.

Referring to Figure 1 cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, the base 110 and the base 110 to move the jigs (jig) in a linear direction and coupled to the base 110 to be movable Pressing jig unit 120 for clamping the strand (200) (clamping), the opposite jig portion 180 is fixed to the base 110 and clamps the strand 200, the press jig portion 120 and the opposite jig portion A plurality of moving jig unit 160 for clamping the strand 200 is located between the 180, the pressing unit 150 to enable vertical movement of the jig, and the pressing jig unit 120 to the opposite jig unit ( And a driving unit 190 compressed in the 180 direction.

The pressing jig unit 120 is located at the side end portion (the right end portion in FIG. 1) of the cable bolt manufacturing apparatus 100, and the lower pressing jig 134 and the pressing unit which are movably coupled to the base 110. An upper pressing jig 122 coupled with the 150 is included. The pressing jig unit 120 is pressed in the direction of the opposite jig unit 180 or the moving jig unit 160 in a state in which the clamping line 200 is clamped, thereby forming a bulb 214 (see FIG. 9) in the line 200. To be.

The upper pressing jig 122 is positioned spaced apart from the upper portion of the lower pressing jig 134 by a predetermined distance. In addition, the upper pressing jig 122 is linearly lowered to engage the lower pressing jig 134 when the pressurizing unit 150 is operated. As a result, the strand 200 is clamped to the pressing jig part 120.

The lower pressing jig 134 is coupled to the base 110 so as to be movable in a straight line. The lower pressing jig 134 is engaged with the upper pressing jig 122 to clamp the strand 200. When the upper pressing jig 122 and the lower pressing jig 134 are engaged with each other, the lower pressing jig 134 is compressed in the direction of the opposing jig part 180 by the driving unit 190.

Specific configurations of the upper pressing jig 122 and the lower pressing jig 134 will be described in more detail with reference to FIGS. 2 to 5b below.

The pressing unit 150 coupled to the pressing jig unit 120 is coupled to the upper pressing jig 122 to compress the upper pressing jig 122 toward the lower pressing jig 134. The pressurizing unit 150 may be a cylinder device including a piston using hydraulic pressure or pneumatic pressure, but is not limited thereto. And the pressing unit 150 is coupled to the pressing jig unit 120 is freely coupled to the unit guide 112 movement. Therefore, when the driving unit 190 is operated after the upper pressing jig 122 and the lower pressing jig 134 are engaged, the lower pressing jig 134, the upper pressing jig 122, and the pressing unit 150 are the base 110. Linear movement in one body.

The opposing jig part 180 is located at the side end portion (left end in FIG. 1) of the cable bolt manufacturing apparatus 100, and the lower opposing jig 184 and the pressurizing unit 150 fixed to the base 110 are provided. And an upper facing jig 182 coupled with the upper surface. The opposite jig unit 180 is fixed to the base 110 while clamping the strand 200, and is compressed by the pressing jig unit 120 or the moving jig unit 160.

The lower facing jig 184 is fixed to the base 110 and is engaged with the upper facing jig 182 to clamp the strand 200. The lower facing jig 184 may have the same structure as the lower pressing jig 134 and is positioned to face the lower pressing jig 134.

The upper facing jig 182 is coupled to the pressing unit 150 and engaged with the lower facing jig 184 or separated from the lower facing jig 184 by the pressing unit 150 and positioned at an upper portion thereof. The upper facing jig 182 may have the same structure as the upper pressing jig 122 and is positioned to face the upper pressing jig 122.

The moving jig part 160 is located between the pressing jig part 120 and the opposing jig part 160, and is sequentially pushed by the pressing jig part 120, and the moving jig part 160 positioned on the leftmost side. ) Is in contact with the opposing jig portion 180. The moving jig unit 160 includes a moving upper pressing jig 122 ′, a moving lower pressing jig 134 ′, a moving upper facing jig 182 ′, and a moving lower facing jig 184 ′.

The movable upper opposing jig 182 ′ and the movable lower opposing jig 184 ′ of the movable jig unit 160 are positioned at a predetermined interval apart from the right side of the movable jig unit 160 as shown in FIG. 1. In this case, the strands 200 are clamped by being engaged with each other. The movable upper opposing jig 182 'and the movable lower opposing jig 184' of the movable jig part 160 are the upper pressurizing jig 122 and the lower pressurizing jig 134 of the pressurizing jig part 120 or the adjacent movement. The jig part 160 is compressed by the moving upper pressing jig 122 ′ and the moving lower pressing jig 134 ′ to form a bulb in the strand 200.

The movable upper pressing jig 122 ′ and the movable lower pressing jig 134 ′ of the movable jig unit 160 are positioned at a predetermined interval up and down from the left side of the movable jig unit 160 as shown in FIG. 1. In this case, the strands 200 are clamped by being engaged with each other. The movable upper pressing jig 122 ′ and the movable lower pressing jig 134 ′ of the movable jig unit 160 are movable upper opposing jig 182 ′ and movable lower opposing jig 184 ′ of the adjacent movable jig unit 160. Or by pressing the upper facing jig 182 and the lower facing jig 184 of the opposing jig part 180 to form a bulb in the strand 200.

The movable upper pressing jig 122 ′ and the movable upper opposing jig 182 ′ of the movable jig unit 160 are connected to each other by the upper connecting member 164. And the upper connection member 164 is coupled to the pressing unit 150. Therefore, when the pressing unit 150 is operated, the moving upper pressing jig 122 'and the moving upper facing jig 182' are lowered integrally to move the lower pressing jig 134 'and the moving lower facing jig 184'. Each meshes with.

The moving lower pressing jig 134 ′ and the moving lower opposing jig 184 ′ of the moving jig unit 160 are coupled to each other by the lower connecting member 168. Accordingly, the moving lower pressing jig 134 ′ and the moving lower opposing jig 184 ′ of the moving jig unit 160 move integrally with respect to the base 110. The moving lower pressing jig 134 ′ and the moving lower opposing jig 184 ′ are combined with a driving device (not shown) to be able to return to the original position by the driving device when the work is completed.

The upper connecting member 164 and the lower connecting member 168 are formed to have the same length, and are moved between the moving upper pressing jig 122 'and the moving upper opposing jig 182' and moving with the moving lower pressing jig 134 '. The distance between the lower facing jig 184 'is kept constant. And since the upper connecting member 164 and the lower connecting member 168 is inserted into each jig 122 ', 134', 182 ', 184' detachably and replaceable with different connecting members, the bulb The spacing between can be easily changed. In addition, since the jig 122 ', 134', 182 ', and 184' coupled to the upper connecting member 164 and the lower connecting member 168 can be replaced, the diameter, length, and spacing of the bulb can be easily changed. have.

Hereinafter, referring to Figures 2 to 5b, the upper pressing jig 122, the lower pressing jig 134, the upper facing jig 182 and the lower facing of the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention The jig 184 will be described.

2 is a perspective view showing the upper facing jig 182 or the upper pressing jig 122 in the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, Figure 3 is the upper facing jig shown in FIG. 182 or a plan view of the upper pressing jig 122. And Figure 4 is a perspective view of the lower facing jig 184 or the lower pressing jig 134 of the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention. 5A and 5B illustrate a movable upper opposing jig 182 ′ and a movable upper press jig 122 ′ at both ends of the upper connection member 164 in the cable bolt manufacturing apparatus 100 according to the exemplary embodiment of the present invention. It is a schematic diagram which shows the separated state and the combined state, respectively.

In the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, the upper opposing jig 182 of the opposing jig part 180 and the upper pressurizing jig 122 of the pressing jig part 120 have the same configuration. However, as shown in FIG. 1, the upper opposing jig 182 of the opposing jig part 180 and the upper press jig 122 of the pressing jig part 120 are disposed to face each other. Similarly, in the cable bolt manufacturing apparatus 100 according to the embodiment of the present invention, the lower pressing jig 134 of the pressing jig unit 120 and the lower facing jig 184 of the opposing jig unit 180 have the same configuration. Have However, as shown in FIG. 1, the lower pressing jig 134 of the pressing jig unit 120 and the lower facing jig 184 of the opposing jig unit 180 are disposed to face each other.

And in the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, the upper pressing jig 122 is the same as the lower pressing jig 134 except for the configuration associated with the guide pin 128 and the guide hole 140. Has a configuration. And in the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, the upper facing jig 182 is the same as the lower facing jig 184 except for the configuration associated with the guide pin 128 and the guide hole 140. Has a configuration.

As can be seen above, in the cable bolt manufacturing apparatus 100 according to the present embodiment, the upper pressing jig 122, the lower pressing jig 134, the upper facing jig 182 and the lower facing jig 184 are Except for the configuration related to the guide pin 128 and the guide hole 140, all have the same configuration. However, the upper pressing jig 122, the lower pressing jig 134, the upper opposing jig 182 and the lower opposing jig 184 is only a difference in the arrangement form up and down and left and right.
Similarly, the configuration of the upper pressing jig 122, the lower pressing jig 134, the upper opposing jig 182 and the lower opposing jig 184 is a moving upper pressing jig 120 ', a moving lower pressing jig of the moving jig portion. 134 ', the moving upper facing jig 182', and the moving lower facing jig 184 'may be identical to each other.

The upper press jig 122 and the lower press jig 134 are located on the right side of the upper opposing jig 182 and the lower opposing jig 184, respectively, and the upper opposing jig 182 and the clamping wire strand 200 are in a state. It is pressed in the direction of the lower opposing jig 184. When the upper pressing jig 122 and the lower pressing jig 134 come into contact with the upper opposing jig 182 and the lower opposing jig 184 or the moving upper opposing jig 182 'and the moving lower opposing jig 184'. Bulbs are formed in the four jigs positioned vertically, vertically, and horizontally.

As described above, the upper pressing jig 122 and the lower pressing jig 134 clamp the strand 200 and then press the upper press jig 182 and the lower press jig in the direction of the upper jig. The 182 and the lower facing jig 184 do not move while the upper pressing jig 122 and the lower pressing jig 124 are pressed while the strand 200 is clamped, so that the steel wire 210 of the strand 200 is not moved. ) Is opened to form a bulb 214.

2 to 3, the upper pressing jig 122 or the upper facing jig 182 is a pressure bulb groove 124 (or opposing bulb groove 124 '), the pressure receiving groove 126 (or opposing storage) Groove 126 ′), a guide pin 128, and a coupling hole 130. The upper pressing jig 122 or the upper facing jig 182 may be formed of the same material as that of the strand 200, or may be formed of a material having a greater strength than that of the strand 200.

The pressure storing groove 126 is formed at the center of the upper pressing jig 122, and the opposite storing groove 126 ′ is formed at the center of the upper facing jig 182 and has a semicircular cross section. When the upper pressing jig 122 engages with the lower pressing jig 134 or the upper facing jig 182 engages with the lower facing jig 184, the pressure storing groove 126 or the opposite storing groove 126 ' The strand wire 200 is inserted and does not move in the longitudinal direction and there is no change in diameter. The radius of the pressurizing storage groove 126 and the opposing storage groove 126 ′ corresponds to the radius of the strand 200.

One end of the pressure storage groove 126 is in communication with the pressure bulb groove 124, and one end of the opposing storage groove 126 ′ is in communication with the counter storage groove 124 ′. The pressurized bulb groove 124 and the opposing bulb groove 124 'are enlarged at an end of the pressurizing storage groove 126 and the opposing storage groove 126' and have a semicircular cross section. Inside the pressurized bulb groove 124 and the opposing bulb groove 124 ′, the steel wire 210 (see FIG. 10) is opened by pressing the strand 200 in the longitudinal direction to form a bulb 214. The shape of the pressurization bulb groove 124 and the opposing bulb groove 124 'has the shape which divided | segmented the bulb 214 shown in FIGS. 9-10. Therefore, the pressing bulb groove 124 and the opposite bulb groove 124 ′ formed in the upper pressing jig 122, the lower pressing jig 134, the upper opposing jig 182, and the lower opposing jig 184 are respectively four. When the jig contacts all as shown in FIG. 8, they are combined to form one bulb 214 shape.

As such, the diameter d of the bulb groove defines the diameter of the bulb 214, and the length 1/2 of the bulb groove corresponds to 1/2 of the length of the bulb 214. Since the portion of the strand wire 200 located in the pressurizing storage groove 126 or the opposing storage groove 126 'cannot be enlarged therein, the strand wire 200 is the pressurized bulb groove 124 or the opposed bulb groove 124. It is expanded only inside the ') to form the bulb 214. As such, the diameter, length, and shape of the bulb 214 correspond exactly to the diameter, length, and shape of the pressure bulb groove 124 and the counter bulb groove 124 ', and thus, the cable bolt manufacturing apparatus according to the present embodiment ( 100 has the advantage of accurately forming the bulb 214 of the desired dimensions and shapes.

When the size and shape of the bulb grooves formed in the upper press jig 122, the lower press jig 134, the upper opposing jig 182, and the lower opposing jig 184 are the same, the jig 122, 134, 182 is the same. 186) mutual exchange is possible.

In addition, when the diameter and length of the bulb 214 formed on the strand 200 are to be changed, the upper pressing jig 122 having a bulb groove corresponding to the diameter and length of the bulb 214 to be changed, the lower portion Since the pressure jig 134, the upper facing jig 182, and the lower facing jig 184 may be provided, respectively, the bulb 214 having various shapes and dimensions can be easily formed.

The guide pin 128 protrudes from four corners of the upper pressing jig 122 and the upper facing jig 182, respectively. The guide pin 128 has a lower pressing jig 134 and a lower part when the upper pressing jig 122 engages with the lower pressing jig 134 or the upper facing jig 182 engages with the lower facing jig 184. The upper jig 122 and the upper opposing jig 182 may be guided while being inserted into the guide holes 140 respectively formed in the opposing jig 184. Therefore, the upper pressing jig 122 can be accurately engaged with the lower pressing jig 134 and the upper facing jig 182 by the guide pin 128 and the guide hole 140 with the lower facing jig 184. .

2 to 4, the guide pin 128 is formed on the upper pressing jig 122 and the upper facing jig 182, and the guide hole 140 is attached to the lower pressing jig 134 and the lower facing jig 184. Although illustrated as being formed respectively, the guide pin 128 is guided by the guide hole 140 can be any position as long as the jig and jig can be set in the correct position.

5A to 5B, the upper connection member 164 is inserted into the coupling hole 130 formed in the movable upper pressing jig 122 ′ and the movable upper opposing jig 182 ′, respectively. Similarly, the lower connection member 168 is inserted into the coupling hole 130 formed in the movable lower pressing jig 134 'and the movable lower opposing jig 184', respectively. Since the upper connection member 164 and the lower connection member 168 both have a constant length and rigidity, the length does not change even when the pressing jig unit 120 is compressed. As a result, the gap between the movable upper pressing jig 122 'and the movable upper opposing jig 182' of the movable jig unit 160 and between the movable lower pressing jig 134 'and the movable lower opposing jig 184'. The interval is always constant.

Therefore, the cable bolt manufacturing apparatus 100 according to the present embodiment, by adjusting the length of the upper connecting member 164 and the lower connecting member 168, respectively, the gap between the bulbs 214 formed in the strand 200. It can be adjusted. Referring to FIG. 5B, it is understood that the distance t between the bulb 214 and the bulb 214 formed in the strand 200 is determined corresponding to the length of the upper connection member 164 and the lower connection member 168. Can be. Of course, it can be seen that the distance t between the bulbs 214 can also be adjusted by the lengths of the movable upper pressing jig 122 ′ and the movable upper opposing jig 182 ′.

The driving unit 190 provided on the right side of the pressing jig unit 120 serves to compress the pressing jig unit 120 in the direction of the opposing jig unit 180. When the driving unit 190 is operated, the pressing jig unit 120 moves to the left to compress the moving jig unit 160 to form a bulb, and the moving jig unit 160 is adjacent to the moving jig unit 160. ) Is sequentially pressed to form a bulb. The moving jig unit 160 adjacent to the opposing jig unit 180 forms a bulb by pressing the opposing jig unit 180 by the driving force of the driving unit 190. Since the opposing jig part 180 is fixed with respect to the base 110, when the opposing jig part 180 and the moving jig part 160 contact, the pressing jig part 120 and the moving jig part 160 are connected to each other. You no longer move.

The driving unit 190 may be formed by a cylinder using hydraulic or pneumatic pressure, such as the pressing unit 150. In addition, the driving unit 190 has a function of detecting and stopping the operation when the pressure jig unit 120 is no longer moved.

Hereinafter, referring to FIGS. 6 to 8, a process of forming the bulb 214 in the strand 200 in the cable bolt manufacturing apparatus 100 according to the present embodiment will be described.

FIG. 6 is a schematic view illustrating a state in which the strand wire 200 is clamped in the cable bolt manufacturing apparatus 100, and FIG. 7 is a schematic view illustrating a state in which the pressing jig unit 120 is moved. 8 is a schematic view showing a state in which the moving jig unit 160 presses the opposing jig unit 180 in the cable bolt manufacturing apparatus 100.

First, as shown in FIG. 1, the strand 200 is inserted into the pressurizing groove 126 and the opposing storage groove 126 ′ formed in the lower pressing jig 134 and the lower opposing jig 184, respectively. At this time, the upper pressing jig 122 is positioned at a predetermined distance away from the lower pressing jig 134, and the upper facing jig 182 is positioned at a predetermined interval apart from the lower facing jig 184. The moving upper pressing jig 122 'is positioned at a predetermined distance from the moving lower pressing jig 134', and the moving upper facing jig 182 is positioned at a predetermined distance from the moving lower facing jig 184 '.

1, the distance s between the pressing jig unit 120 and the moving jig unit 160, the distance s between the moving jig unit 160 and the moving jig unit 160, and the moving jig unit 160 The distance s between the opposing jig parts 180 is all the same. Of course, when the spacing between the bulb 214 is formed to be different, it is a matter of course that the spacing between the pressing jig unit 120, the moving jig unit 160 and the opposite jig unit 180 can be adjusted differently.

When the position setting for the strand 200 is completed as shown in Figure 1, the pressing unit 150 is operated as shown in Figure 6 the upper pressing jig 122 is lowered to engage the lower pressing jig 134, the upper facing jig 182 is lowered to engage the lower facing jig 184. Further, the moving pressing upper jig 122 'is lowered to be engaged with the moving pressing lower jig 134', and the moving facing upper jig 182 'is lowered to be engaged with the moving opposite lower jig 184'. Thus, the strand wire 200 is inserted into the pressure receiving groove 126 or the opposite storage groove 126 ′ formed in each jig, which causes the strand wire 200 to be clamped and at the same time the pressure storage groove 126 or The bulb 214 is not formed in the portion of the strand wire 200 inserted into the opposing storage groove 126 ′. The pressurizing unit 150 is operated until the operation is completed to clamp the strand wire 200.

When the upper pressing jig 122 is engaged with the lower pressing jig 134, the guide pin 128 formed in the upper pressing jig 122 is the guide hole 140 formed in the lower pressing jig 134. Since it is inserted in, the upper pressing jig 122 can be accurately positioned relative to the lower pressing jig 134. Similarly, when the upper facing jig 182 is engaged with the lower facing jig 184, the guide pin 128 formed in the upper facing jig 182 is a guide hole formed in the lower facing jig 184 ( Since it is inserted into 140, the upper facing jig 182 can be accurately positioned with respect to the lower facing jig 184.

After the clamping of the stranded wire is completed as shown in FIG. 6, the driving unit 190 operates as shown in FIG. 7 to compress the pressing jig unit 120 in the direction of the opposing jig unit 180. As a result, the pressing jig unit 120 moves to the left to compress the adjacent moving jig unit 160. At this time, the four bulb grooves respectively formed in the upper pressing jig 122, the lower pressing jig 134, the moving upper facing jig 182 'and the moving lower facing jig 184' are coupled to each other to form a bulb. Will create a shape of (214). Since the moving jig unit 160 is fixed, the moving jig unit 160 is fixed to the sum s + l of the distance s between the pressing jig unit 120 and the moving jig unit 160 and the length l of the two bulb grooves. The steel wire 210 is bent in the strand 200 of the corresponding length to form a bulb 214 of length l. And since the bulb 214 is formed constrained in the four bulb grooves, the shape is the same as the shape when the four bulb grooves are combined and the diameter is d, the diameter of the bulb groove.

After the pressing jig unit 120 compresses the adjacent moving jig unit 160 to form the bulb 214, the driving unit 190 continues to operate to move the moving jig unit 160 to the adjacent moving jig unit 160. In the direction. Thus, the moving upper pressing jig 122 ', the moving lower pressing jig 134', the moving upper opposing jig 182 'and the moving lower opposing jig of the moving jig 160 are adjacent to the moving jig 160. 184 'may be joined together to form one bulb 214 therein as shown in FIG.

In addition, the moving jig unit 160 forms a bulb 214 by sequentially compressing adjacent moving jig units 160, and as shown in FIG. 8, the moving jig unit 160 finally faces the opposite jig unit 180. When pressing to form the bulb 214, since the opposing jig portion 180 fixed to the base 110 does not move, the pressing jig unit 120 and the moving jig unit 160 stops moving. . As a result, the driving unit 190 also stops operating.

When the operation of the driving unit 190 is stopped and the pressure unit 150 is operated, the upper pressing jig 122 of the pressing jig unit 120, the moving upper pressing jig 122 ′ of the moving jig unit 160, and the moving unit are moved. The upper opposing jig 182 ′ and the upper opposing jig 182 of the opposing jig part 180 move upward to release the clamping state of the strand 200. Thereafter, the strand 200 is wound by a winding device (not shown). By the cable bolt manufacturing apparatus 100 shown in FIG. 1, four bulbs 214 are formed in the strand 200. Of course, as the number of the moving jig portion 160 provided between the pressing jig portion 120 and the opposing jig portion 180 increases, the number of bulbs 214 formed increases, and the number of moving jig portions 160 is increased. In the case of n (a natural number including 0), the number of bulbs 214 formed is n + 1. The length of the bulb 214 is 1, the diameter is d, and the interval between the bulbs 214 is t, which will be described with reference to FIGS. 9 to 10.

After the formation of the bulb 214 is completed, the pressing jig unit 120, the moving jig unit 160 and the opposing jig unit 180 is returned to its original position as shown in FIG. At this time, the base 110 has a separate driving device for moving the lower pressing jig 134 and the lower facing jig 184 and the moving lower pressing jig 134 'and the moving lower facing jig 184'. , A linear motor (not shown) may be provided. In addition, the pressing unit 150 may be returned to its original position by moving along the unit guide 112.

Hereinafter, the cable bolt 220 in which the bulb 214 is formed on the strand 200 will be described with reference to FIGS. 9 to 10.

9 is a view showing a cable bolt 220 manufactured by the cable bolt manufacturing apparatus 100 according to an embodiment of the present invention, Figure 10 is a cross-sectional perspective view taken along line AA 'of FIG.

9 to 10, the bulb 214 formed in the strand 200 may be pressurized jig unit 120 to press the moving jig unit 160 or the moving jig unit 160 to the opposite jig unit ( By pressing 180, the iron wire 210 of the strand 200 is bent and formed inside the bulb groove. Therefore, the diameter d of the bulb 214 is larger than the diameter of the strand 200, and an empty space is formed inside the bulb 214 as shown in FIG. 10.

The diameter of the bulb 214 is d, which is the same as the diameter of the pressing bulb groove 124 and the opposing bulb groove 124 ′ in which the bulb 214 is formed. And the length of the bulb 214 is 1, which corresponds to twice the length of the pressure bulb groove 124 or the opposing bulb groove 124 '. In addition, the interval t between the bulbs 214 is determined according to the length of the upper connecting member 164 (or lower connecting member 168) and the length of the receiving groove, as shown in Figure 5b.

As can be seen above, in the cable bolt manufacturing apparatus 100 according to the present embodiment, the bulb 214 is formed only inside the bulb groove, and the size and shape of the bulb 214 is formed corresponding to the bulb groove. . Therefore, the cable bolt 220 manufactured by the cable bolt manufacturing apparatus 100 according to the present exemplary embodiment may accurately form a diameter, a length of the bulb 214, and a gap between the bulb 214.

In addition, the upper pressing jig 122, the lower pressing jig 134, the upper facing jig 182 and the lower facing jig 184 and the moving upper pressing jig 122 ', the moving lower pressing jig 134', the moving upper Since the counter jig 182 'and the movable lower counter jig 184' are replaceable, the size and shape of the bulb 214 can be easily changed by replacing the jig having a bulb groove of a desired shape. In addition, by adjusting the length of the upper connection member 164 and the lower connection member 168 it is possible to adjust the interval between the bulb 214.

And the cable bolt manufacturing apparatus 100 according to the present embodiment is simple because the overall jig unit 160 is provided with only one pressurizing unit 150. And the cable bolt manufacturing apparatus 100 according to the present embodiment can be provided with only one drive unit 190 is simple in configuration, the pressure jig unit 120 and the moving jig unit 160 while the bulb moves in sequence Since 214 is formed, the productivity is excellent.

The cable bolt 220 formed as described above has a higher yield load and tensile load than the conventional release bar, which is excellent in stability, light in weight, and easy to adjust in length, and thus excellent in work efficiency and deformed according to the shape of the perforated hole. Since it is easy, there is an advantage in excellent workability. In particular, since the bulb 214 formed in the middle enlarges the contact area with the mortar and the resin, it is possible to more securely fix the unstable rock.

Although the above has been described with reference to a preferred embodiment of the present invention, those skilled in the art to which the present invention pertains without departing from the spirit and scope of the present invention as set forth in the claims below It will be appreciated that modifications and variations can be made.

1 is a schematic diagram of a cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 2 is a perspective view showing an upper facing jig (or upper pressing jig) of the cable bolt manufacturing apparatus according to an embodiment of the present invention.

3 is a plan view of the upper facing jig (or upper pressing jig) shown in FIG.

Figure 4 is a perspective view of the lower facing jig (or lower pressing jig) of the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 5a is a schematic diagram showing a state in which the upper opposing jig and the upper pressing jig separated in both ends of the upper connection member in the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 5b is a schematic diagram showing a state in which the upper opposing jig and the upper pressing jig coupled to both ends of the upper connection member in the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 6 is a schematic diagram showing a state in which the clamping the strand in the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 7 is a schematic diagram showing a state in which the pressing jig portion compressed jig portion in the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 8 is a schematic diagram showing a state in which the moving jig portion pressed against the opposing jig portion in the cable bolt manufacturing apparatus according to an embodiment of the present invention.

Figure 9 is a schematic diagram showing a cable bolt having a bulb, formed by a cable bolt manufacturing apparatus according to an embodiment of the present invention.

FIG. 10 is a perspective view taken along line AA ′ of FIG. 9.

Claims (12)

Base; An opposite jig portion fixed to the base and clamping the strand; And Located opposite to the opposing jig portion, and the pressing jig portion is pressed in the direction of the opposing jig portion on the base by clamping the stranded wire, The opposing jig unit includes a lower opposing jig fixed to the base and an upper opposing jig engaged with the lower opposing jig, The pressing jig unit includes a lower pressing jig movably coupled to the base and an upper pressing jig engaged with the lower pressing jig, The lower opposing jig and the upper opposing jig are provided with opposing bulb grooves and opposing receiving grooves communicating with the opposing bulb grooves and into which a portion of the strand is inserted. The lower pressurizing jig and the upper pressurizing jig respectively include a pressurizing bulb groove and a pressurizing receiving groove communicating with the pressurizing bulb groove and a portion of the strand wire inserted therein, When the pressing jig portion is pressed in the direction of the opposite jig portion cable bolt manufacturing apparatus that the bulb is formed in the opposing bulb groove and the pressing bulb groove. The method of claim 1, The opposite bulb groove is formed to be enlarged at the end of the opposite receiving groove, The pressure bulb groove is cable bolt manufacturing apparatus, characterized in that formed on the end of the pressure receiving groove is expanded diameter. The method of claim 2, The pressurized bulb groove and the opposing bulb groove is cable bolt manufacturing apparatus, characterized in that gradually expanding diameter toward the end. The method of claim 1, Cable press manufacturing apparatus, characterized in that the pressure receiving groove and the diameter of the opposite receiving groove is formed corresponding to the stranded wire. The method of claim 1, Any one of the upper facing jig and the lower facing jig has a guide pin, Cable bolt manufacturing apparatus, characterized in that the other of the upper facing jig and the lower facing jig has a guide hole into which the guide pin is inserted. The method of claim 1, Any one of the upper pressing jig and the lower pressing jig is provided with a guide pin, Cable bolt manufacturing apparatus, characterized in that the other one of the upper pressing jig and the lower pressing jig has a guide hole into which the guide pin is inserted. The method of claim 1, Further comprising a moving jig portion movably coupled to the base between the pressing jig portion and the opposing jig portion, The moving jig unit includes a moving upper facing jig and a moving lower facing jig corresponding to the upper facing jig and the lower facing jig, respectively. The moving jig unit, a cable bolt manufacturing apparatus comprising a moving upper pressing jig and a moving lower pressing jig corresponding to the upper pressing jig and the lower pressing jig, respectively. The method of claim 7, wherein The movable upper facing jig and the movable upper pressing jig are coupled to each other by an upper connecting member, The movable lower opposing jig and the movable lower pressing jig are mutually coupled by a lower connection member, Cable bolt manufacturing apparatus, characterized in that the upper connecting member and the lower connecting member has the same length. The method of claim 8, The upper connection member, Cable press manufacturing apparatus characterized in that the pressing unit for pressing the moving upper opposing jig and the moving upper pressing jig to the moving lower opposing jig and the moving lower pressing jig is coupled. The method of claim 9, The movable upper facing jig and the movable upper pressing jig are provided with coupling holes into which the upper connecting member is inserted, respectively. The moving lower opposing jig and the moving lower pressing jig is characterized in that each of the cable bolt manufacturing apparatus characterized in that it has a coupling hole into which the lower connection member is inserted. The method of claim 10, The upper connection member is detachably inserted into the coupling hole, The lower connection member is a cable bolt manufacturing apparatus, characterized in that inserted into the coupling hole detachably. The method of claim 1, The upper opposing jig, the lower opposing jig, the upper pressing jig and the lower pressing jig all have the same shape, characterized in that the cable bolt manufacturing apparatus.

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