KR20200103511A - One-touch type reinforcing bar coupler and its manufacturing method - Google Patents

Abstract

The present invention relates to a coupler for binding reinforcing bars, which connects reinforcing bars used when constructing a house or a building, and a manufacturing method for manufacturing the same. The coupler for binding reinforcing bars is a one-touch coupler to insert reinforcing bars thereinto so as to easily fix two reinforcing bars that are vertically connected in a straight line. The coupler for binding reinforcing bars comprises: a fixing part having a stopping protrusion formed in the coupler into which reinforcing bars are inserted to stop nodes arranged on the reinforcing bars; a stopper which spreads the fixing parts at regular intervals before the reinforcing bars are inserted, and is damaged or is pushed to a support plate when the reinforcing bars are inserted; an O-ring to tightly fix the fixing part on the stopper, and further tightly fix the fixing part on the outer wall of the inserted reinforcing bars when the support plate is pushed; an elastic spring to push the fixing part to fix the reinforcing bars when the reinforcing bars are inserted into the coupler; and a fixing pin operable as a central barrier which includes a support plate to support the spring, and sturdily fixes the inserted reinforcing bars by pushing the support plate while tightening when the fixing pin is rotated.

Description

Coupler for rebar binding and its manufacturing method {One-touch type reinforcing bar coupler and its manufacturing method}

The present invention relates to a rebar binding coupler that connects reinforcing bars when reinforcing bars are used when building houses or buildings, and a one-touch coupler in which rebars are inserted so that rebars are easily connected and fixed, and a fixing pin for preventing length deformation is turned. A joint clamping jaw is provided along the inner circle of the fastener of the coupler into which the reinforcing bar is inserted, and the fastener provided in both directions inside the coupler is pushed so that the rebar is firmly fixed. A coupler for rebar binding that can securely fix two reinforcing bars that are connected in a straight line up and down, including a central separation plate that supports the spring and the spring, and a fixing pin for fixing the rebar by pushing the central separation plate, and its manufacturing method. About.

Rebar is a building material that is indispensable when constructing concrete buildings as well as general buildings. Reinforcing bars are connected by stacking layers from foundation work to high-rise buildings. At this time, as a method of connecting the reinforcing bars, the method of tying them with ordinary wire is common.

In particular, no matter how high-rise buildings are built, there is no other way than connecting them with wires. However, in such a building, if there is a problem due to earthquake or external force, there is no problem because the reinforcing bar is thick and has a sufficient tensile strength, but at the same time, the wire breaks and the building collapses as the concrete is damaged in the area connected by the wire with weak tensile strength. It will be self-evident.

So, as a method to replace this and satisfy the seismic design, the method of binding with wire such as screw processing, pressure welding (welding between rebars), wedge type (a method of binding the wedge by hitting it with a hammer after matching the wedge to the reinforcing bars). Although various ties and methods have appeared in place of the seismic design, it is only a method that focuses on seismic design, and the work is difficult and labor and labor costs are high, which intensifies the difficulty.

More recently, smart couplers (No. 10-1643846, 1654145, 1654150, 1683143, 1683146) that are fixed immediately by inserting reinforcing bars in both holes have been developed and marketed. This product is a one-touch type, which makes installation work simple and labor-intensive. Labor costs can be significantly reduced, but actual users (construction sites) are avoiding them because the structure is complex and manufacturing is difficult and the price is high.

The technical problem to be achieved by the present invention is to solve the above-described problems. When a fastener is provided inside the main body and a reinforcing bar is inserted, the stopper that was bisecting the fastener is damaged or falls out to the base plate, and the spring When the fixture is pushed, the reinforcing bar is fixed by hooking the outer wall of the rebar and the joint on the hook of the fixture.At this time, there may be flow of the rebar due to the minute gap between the hook and the joint (length deformation due to play). In order to prevent, it provides a coupler for binding reinforcing bars having a fixing pin between the base plates.

The above object is achieved by the following configuration provided in the present invention.

The present invention is a coupler for reinforcing bar binding that connects reinforcing bars in which nodes are formed at intervals around the outer circumference of the reinforcing bar to the outside, and is formed in a cylindrical shape in which both sides are opened so that the reinforcing bars are inserted into both sides. The main body is tapered so that the inner diameter is narrowed to both sides; It is provided on both sides of the main body, and is formed in a cylindrical shape through which the reinforcing bar inserted into the main body passes, and one end is tapered so that it is not separated from the main body by being caught by the tapered part of the main body, and is fixed when the reinforcing bar is inserted. Fixture; Two support plates having a cylindrical shape for receiving each of the tapered opposite sides of the fasteners provided on both sides of the main body, and in contact with the main body and the reinforcing bars inserted into the fasteners; And when the reinforcing bar touches the base plate, the spring pushes the fixture, and the rebar joint is caught by the collim jaw of the fixture.At this time, the gap between the locking jaw and the rebar joint is not constant, resulting in a fine gap, resulting in length deformation. Fixing pins; A spring mounted on the base plate to elastically support the fixture; It provides a coupler for binding reinforcing bars and a method of manufacturing the same.

According to the present invention, the inconvenience and safety problems that were fixed with a wire are solved, and the installation method is the same as the previously invented smart coupler, but there is no length deformation at all, and an excellent absolute advantage in terms of cost and labor cost reduction is provided. .

According to the present invention, there is an effect that can help reduce the economic burden while satisfying inspection items such as sufficient tensile strength and ensuring safety while simply constructing.

1 is a view in which a reinforcing bar is inserted into a coupler according to an embodiment of the present invention.
2 is a diagram illustrating an internal structure for inserting a reinforcing bar into a coupler according to an embodiment of the present invention.
3 is a three-dimensional view illustrating the entire internal structure of a coupler according to an embodiment of the present invention.
4 is a diagram illustrating how the reinforcing bar is fixed without length deformation when a reinforcing bar is inserted according to an embodiment of the present invention.
5 is an enlarged view in which a stopper and a fixture are assembled according to an embodiment of the present invention.
6 is a view showing a fixture according to an embodiment of the present invention.
7 is a view showing a stopper according to an embodiment of the present invention.
8 is a view showing an O-ring according to an embodiment of the present invention.
9 is a view showing a support plate according to an embodiment of the present invention.
10 is a view showing a fixing pin according to an embodiment of the present invention.
11 is a diagram illustrating a method of assembling each part according to an embodiment of the present invention.
12 is a diagram illustrating a method of manufacturing a coupler according to an embodiment of the present invention.
13 is a diagram illustrating a manufacturing machine for manufacturing a coupler according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily implement the present invention. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiments described in the text. That is, since the embodiments can be modified in various ways and have various forms, the scope of the present invention should be understood to include equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all or only such effects, the scope of the present invention should not be understood as being limited thereto.

Meanwhile, the meanings of terms described in the present invention should be understood as follows.

Terms such as "first" and "second" are used to distinguish one component from other components, and the scope of rights is not limited by these terms. For example, a first component may be referred to as a second component, and similarly, a second component may be referred to as a first component.

When a component is referred to as being "connected" to another component, it should be understood that although it may be directly connected to the other component, another component may exist in the middle. On the other hand, other expressions describing the relationship between components, that is, "between" and "just between" or "neighboring to" and "directly neighboring to" should be interpreted as well.

Singular expressions are to be understood as including plural expressions unless the context clearly indicates otherwise, and terms such as "comprises" or "have" are specified features, numbers, steps, actions, components, parts, or combinations thereof. It is to be understood that it is intended to designate that a thing exists and does not preclude the possibility of the presence or addition of one or more other features or numbers, steps, actions, elements, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the field to which the present invention belongs, unless otherwise defined. Terms defined in commonly used dictionaries should be interpreted as having meanings in the context of a related technology, and cannot be interpreted as having an ideal or excessive formal meaning unless explicitly defined in the present invention.

The present invention is a coupler for reinforcing bar binding that connects each of the reinforcing bars 100 on which a plurality of nodes 101 and ribs 102 protruding in a vertical direction to the outside are formed at intervals on the outer periphery of the present invention. The main body 1 is formed in a cylindrical shape in which both sides are opened so that insertion of the reinforcing bar 100 is made, and tapered so that the inner diameter is narrowed toward the opened sides; The main body 1 is provided on both sides of the inner body 1, and is formed in a cylindrical shape through which the reinforcing bar 100 inserted into the main body 1 passes, and one end is caught by the tapered portion of the main body 1 so that the main body 1 A fastener 10 to which the inserted reinforcing bar 100 is fixed, having a tapered shape so as not to be separated; Separate the fasteners 10 at regular intervals and hold the fasteners 10 so that they do not flow before inserting the reinforcing bars, and when the reinforcing bars are inserted, they are damaged or pushed to the base plate 50, and the fasteners bite the reinforcing bars to be fixed. A stopper 20; When the reinforcing bar is inserted while the fastener 10 coupled to the stopper 20 does not move or detaches, the stopper 20 is damaged or pushed back to the base plate 50, and the outer wall of the rebar into which the fastener 10 is inserted. O-ring (30) that serves to more closely to the pucker; A spring 40 that is in close contact with the support plate 50 and elastically supports the fixture 10; Coupler body (1) a support plate 50 for supporting the spring 40 while serving as a central portion into which the reinforcing bar is inserted with the fixing pin 60 fitted in the central portion therebetween; The reinforcing bar is inserted into the center of the body between the two base plates, and when the female fixing pin (60a) is rotated after touching the base plate (50), the base plate (50) is pushed to both sides and the reinforcing bar is pushed to the tapered side, so there is no length deformation. Fixing pins 60 to perfectly fix the reinforcing bar; Consists of including.

In addition, the fastener 10 is formed with a plurality of locking jaws 11 provided along the inner circumference so that the nodes 101 of the reinforcing bars 100 are caught.

In addition, a stopper fitting groove 12 is formed along the inner circumference of the lower one side of the fastener 10 and the O-ring 30 is fitted along the outer circumference. An O-ring insertion groove 13 is formed, and a spring holder 14 into which the spring 40 can be inserted is formed on the lower surface.

In addition, the stopper 20 is formed with a fixture separator 21 that opens the fixture at regular intervals, and a fixture holder 22 that can be inserted into the stopper fitting groove 12 formed in the fixture is formed.

In addition, the outer shape of the fixing pin 60 is inclined in a conical shape and divided into a female fixing pin 60a and a male fixing pin 60b, and the head is formed in a hexagonal shape.

Now, a coupler for binding reinforcing bars according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a view in which a reinforcing bar is inserted into a coupler according to an embodiment of the present invention, and referring to FIG. 1, a fixing pin 60 at a central portion into which two reinforcing bars 100 are inserted side by side in the main body of the present invention is shown. When turned, it is completely fixed, and labor costs are reduced due to the simple one-touch installation, and since each fixture is inserted inside the main body (1), it is satisfied with the seismic design and is particularly safe against earthquakes and external forces.

2 is a diagram illustrating an internal structure for inserting a reinforcing bar into a coupler according to an embodiment of the present invention.

2, when the reinforcing bar 100 is inserted into the coupler 1, the reinforcing bar 100 contacts the stopper 20 and the reinforcing bar 100 destroys or pushes the stopper 20 and passes through the spring 40. It is a structure that contacts the base plate 50, and when the stopper 20 is destroyed or separated, the O-ring 30 that was tightening the fixture 10 is further retracted to tighten the fixture 10, and a spring that elastically supports the fixture 10 (40) As the fastener 10 is pushed into the narrow coupler inlet of the tapered shape by pushing the fastener 10, the locking protrusion 11 formed on the inner wall of the fastener 10 is attached to the node 101 formed in the reinforcing bar 100. It is to be hung and fixed, but the joint 101 formed on the reinforcing bar 100 is not uniform and slightly different for each reinforcing bar, while the locking jaws 11 formed on the fixture 10 are uniform without an error of 1 millimeter, and thus the joint 101 and the joint are locked. If the width between the jaws 11 is different and the reinforcing bar is fitted and coupled, the problem occurs in that the reinforcing bar is slightly shaken, that is, the length is deformed. When the support plate 50 is pushed up, the reinforcing bar 100 is pushed to the tapered side and is in close contact and completely fixed.

3 is a three-dimensional view illustrating the entire structure of an interior of a coupler according to an embodiment of the present invention.

Referring to Figure 3, the body (1) the central portion of the fixing pin (60) is fitted and coupled to both sides of the base plate (50) is inserted side by side, and the main body (1) into which the reinforcing bar (100) is inserted has a long cylindrical shape with narrow entrances. A fastener 10 having a tapered (closed) shape and fixing the reinforcing bar 100 inserted therein is provided, and the fastener 10 has a locking jaw in which the node 101 provided in the reinforcing bar 100 is engaged (11) is formed, and an O-ring insertion groove 13 is formed along the outer circumference of the lower portion of the fastener 10 to fit the O-ring 30, and a spring 40 elastically supporting the fastener 10 is formed in the lower part. The spring holder 14 to be mounted is formed so that the spring 40 is fitted and the combined spring 40 serves to fix the reinforcing bar by pushing the fastener 10 from the support plate 50.

The main body 1 is made of a high-pressure carbon steel pipe, and the fixture 10 that enters the inside can be manufactured by pressing a steel plate and passing through lapping and heat treatment processes, or by cold forging method or powder metallurgy method.

4 is a diagram illustrating how the reinforcing bar is fixed without length deformation when a reinforcing bar is inserted according to an embodiment of the present invention.

Referring to FIG. 3, the locking protrusion 11 formed inside the fixture 10 does not have an error of 0.1 millimeters, whereas referring to FIG. 4, the joint 101 formed in the reinforcing bar is not uniform in the production process, so the coupler 10 When the reinforcing bar is inserted into the spring 40 pushes the fixture 10 to fix the reinforcing bar 100, it is difficult for the reinforcing bar 100 to be fixed without any flow due to this deviation. Accordingly, referring to this drawing, male and female fixing pins (60a, 60b) for closely fixing reinforcing bars are fitted between the support plates 50 that support the reinforcing bars, which are male and female fixing pins (60a, 60b) before the reinforcing bars are inserted. When the female screw (60a) is turned after the reinforcing bar is inserted in the loosened state (before fixing), the fixing pin (60a 60b) is made of a thick conical female (60a-3) male (60b-3) screw on the head. While being locked (pulled to each other), the fixing pin 60 pushes the base plate 50, and the reinforcing bar is pushed toward the tapered coupler inlet, so that the reinforcing bar is more closely fixed to the fastener 10. The spring 40 holds the fastener 10. Although it serves to push, the fixing pin 60 serves to push the reinforcing bar itself.

5 is an enlarged view in which a stopper and a fixture are assembled according to an embodiment of the present invention.

Referring to FIG. 5, the fixture 10 faces with the fixture separator 21 formed along the circumference of the stopper 20 therebetween, and the fixture 10 is formed along the inner circumference on one side below the fixture 10 When the fixture holder 22 is fitted into the stopper fitting groove 12 and the O-ring 30 is inserted into the O-ring inserting groove 13, the fixture 10 is separated and assembled around the base plate 20. In the drawing, it is supposed to combine the fasteners 10 on three sides, but the fasteners can be assembled in 4 sides and can be manufactured regardless of whether they are 3, 4 or 5 sides.

6 is a view showing a fixture according to an embodiment of the present invention.

6, the inner wall of the fixture 10 is provided with a plurality of locking projections 11 that can be fixed by biting the reinforced outer wall and the joint 101, and along the lower inner wall, the fixture 10 before the coupler is completely manufactured. ) Is formed with a stopper fitting groove 12 to be assembled to a certain height and position.

In addition, the outer wall of the fixture 10 is manufactured to be inclined toward the entrance into which the reinforcing bar is inserted, and an O-ring insertion groove 13 to which the O-ring 30 is fitted is formed on one side of the lower side, and an elasticity that pushes the fixture 10 at the bottom. A spring holder 14 to which a spring is fitted is formed. The spring holder 14 can be manufactured in a protruding or concave recessed shape, and can be manufactured without the spring holder 14.

The fixture 10 may be manufactured by processing S45C steel or high-tensile steel, or by pressing a steel sheet and performing a lapping and heat treatment process, or may be manufactured by a cold forging method or a powder metallurgy method.

7 is a view showing a stopper according to an embodiment of the present invention.

Referring to FIG. 7, the stopper 20 is formed by injection molding or pressing an iron plate with a press, and assembling each part before being made into a complete coupler 1 by inserting it into the coupler body 1a. It plays an important role in assembling so that it can be automatically manufactured with a manufacturing machine (machine 10). A fixture holder (21) that separates and fixes the fixture (10) along the circumference of the fixture (10) is formed vertically long and is inserted into a stopper fitting groove (12) formed along the circumference of the inner wall of the lower end of the fixture (10) ( 22) is formed around the outer wall of the stopper 20. In the drawing, a single fixture holder 22 is formed, but a plurality of support plate fitting grooves 12 of the fixture holder 22 and the fixture 10 are formed, and an O-ring insertion groove 13 is formed at an intermediate point to form an O-ring 30 ) Can also be made to fit.

8 is a diagram illustrating an O-ring according to an embodiment.

Referring to FIG. 8, the O-ring 30 is fastened to the stopper 20 so as to be in close contact with the stopper 20, and when the reinforcing bar is inserted, the stopper 20 is damaged or pushed to the support plate 50 between the springs 40. When the stopper 20 is pushed out, it serves to further closely contact each of the fasteners 10 to the inserted reinforcing bar outer wall. It is made of hard steel wire or stainless steel (SUS) material for springs with strong elasticity, and when it is inserted into the O-ring insertion groove 13 formed at the bottom of each fastener 10, it is easy to fit while being opened, and when the reinforcing bar is inserted, the O-ring 30 is closed. In order to further tighten the outer wall of the reinforcing bar, the O-ring 30 is formed with an O-ring cut 31 having one side cut.

9 is a view showing a support plate according to an embodiment of the present invention.

Referring to FIG. 9, two support plates 50 inserted in the center of the coupler body 1 are cut to a certain thickness with a round bar, etc., or are manufactured by pressing an iron plate, and a coupler body 1 having a certain thickness. It is manufactured to be slightly thinner than the same thickness as the inner diameter of the high-pressure carbon steel pipe (1a) to be used so that it can be easily inserted, and it is manufactured to flow easily by turning the fixing pin (60) between the base plates (50).

10 is a view showing a fixing pin according to an embodiment of the present invention.

Referring to FIG. 10, the fixing pin 60 is manufactured by processing a round bar or high-tensile steel, or pressing a steel plate with a press and then lapping and heat treatment, and the shape of the head side (60a-1, 60b-1) is thick. It has a conical shape and consists of a female fixing pin (60a) and a male fixing pin (60b).

The head (60a-1) of the female fixing pin (60a) is square or polygonal, and after inserting the reinforcing bar, it is tightened with a monkey or other tool, so that the tool can be used to prevent flow after the rebar is inserted. Or it is to form a polygonal head, and the body (60a-2) has a conical shape, that is, the head side (60b-1) is thick and tapering in the longitudinal direction, and the body (60a-2) is assembled by turning the male fixing pin (60b) inside the body. The female screw (60a-3) that can be formed is formed. Of course, the head can be made in a concave shape that can be used instead of a convex head.

The head portion 60b-1 of the male fixing pin 60b is also manufactured in a square or polygonal shape. The head (60b-1) is made of a square or polygonal shape when the male fixing pin (60b), which is assembled by drilling a hole at the center point of the coupler body (10), inserts the reinforcing bar and then turns the female fixing pin (60a) to tighten it. Since the male fixing pin (60b) should not rotate together, the male fixing pin (60b) itself is manufactured in a square or polygonal shape to prevent rotation, and the body (60b-2) has a head like the female pin body (60a-2). The side (60b-1) is thick and tapering in the longitudinal direction, and a male screw (60b-3) is formed at the end of the body (60b-2) so that it can be assembled with a female screw (60a-3).

The male and female fixing pins (60a, 60b) are assembled in a slightly loose state between the support plates (50), and then, after inserting the reinforcing bar into the coupler, turn the female fixing pin (60a) to tighten the two support plates (50) in opposite directions. It is firmly fixed by pushing the reinforcing bars in contact while being pushed. Of course, it is also possible to manufacture various types of fixing pins.

11 is a diagram illustrating a method of assembling each part according to an embodiment of the present invention.

Referring to FIG. 11, after assembling the support plate fitting groove 12 of the fixture 10 to the fixture holder 22 provided in the stopper 20, the O-ring insertion groove 13 provided on the lower outer wall of the fixture 10 When the O-ring (30) is inserted into the bottom and the spring (40) is inserted into the lower part, a fixture assembly (10a) is created. The assembled fixture assembly (10a) is placed in the two base plates ( 50) is inserted into the assembled coupler body (1a), and when both reinforcing bar insertion ports (1-1) are closed with a manufacturing machine (machine 1), this coupler (coupler 1) is made.

12 is a diagram illustrating a method of manufacturing a coupler according to an embodiment of the present invention.

Referring to FIG. 12, a conveyor provided in a manufacturing machine (machine 10) that closes both reinforcing bar insertion portions (1-1) after inserting the fixing assembly (10a) assembled on both sides of the coupler body (1a). 30) When it is placed on top, it is automatically inserted into the compression mold (20, 20a), and the cylinder (11) is operated, narrowing the two compression molds (20, 20a) and reinforcing bar insertion part (1-1) The coupler (1) is made in the shape of the tapered insertion part (1-1) by closing it. Fit the inserted fixture assembly (10a) in the central part of the compression mold (Gi 20, G 20a) to the center before closing it, and push the fastener assembly (10a) slightly protruding from the coupler main body (1), and open the inlet. A central shaft (unit 21) for retracting is provided.

13 is a diagram illustrating a manufacturing machine for manufacturing a coupler according to an embodiment of the present invention.

The method of manufacturing the present coupler 1 can be manufactured by manufacturing a mold (frame) capable of making a narrow shape of the reinforcing bar insertion portion 1-1 and mounting it on a universal press machine. However, referring to FIG. 13, this exclusive manufacturing machine (machine 1), which is separately manufactured for mass production and automation of the main coupler 1, is a coupler 1 on one side above the frame that forms the body of the machine. One mold (20) is fixedly mounted to tapered both inlets of ), and a cylinder (11) is installed on the other side of the frame (10), and another is installed on the cylinder shaft (11a). When the mold (20a) is mounted and the cylinder (11) is operated and the coupler assembly (10a) is inserted into the mold (20, 20a), the cylinder (11) is operated to automatically open the coupler (1). It is a dedicated manufacturing machine (machine 1) produced.

In addition, when the fixture assembly (10a) is placed behind the mold (machine 20, machine 20a) of the manufacturing machine (machine 1), a conveyor (conveyer machine 30) that is automatically inserted into the mold (machine 20, machine 20a) When the installed and assembled fixture assembly (10a) is placed on the conveyor (unit 30), it is automatically inserted and the cylinder (unit 11) operates and the coupler (1) is automatically manufactured. In addition, just before the fixture assembly (10a) is inserted into the mold (20, 20a), a detection sensor (31) that detects the fixture assembly (10a) is attached. ) Is a function of inserting another fixture assembly (10a) after the mold (20, 20a) is operated and one coupler (1) is manufactured and pushed out, and a separate controller for operating the conveyor machine is provided. And all functions are automatically activated.

As described above, the embodiments of the present invention are not implemented only through the above-described apparatus or operation method, but may be implemented through a method or other method for realizing a function corresponding to the configuration of the embodiment of the present invention. From the description of the embodiment, it can be easily implemented by an expert in the technical field to which the present invention belongs.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

1: coupler
1a: coupler body 1-1: reinforcing bar insertion part
10: Fixture 10a: Fixture Assembly
11: locking jaw 12: stopper fitting groove
13: O-ring insertion groove 14: spring support
20: stopper 21: fixture separator 22: fixture holder
30: O-ring 31: O-ring cut
40: spring
50: base plate
60: fixing pin 60a: female fixing pin 60b: male fixing pin
60a-1: female pin head 60a-2: female pin body 60a-3: female thread
60b-1: male pin head 60b-2: male pin body 60b-3: male thread
100: reinforcing bar 101: node 102: rib
Period 1: Manufacturing machine
Period 10: frame
Machine 11: Hydraulic cylinder Machine 11a: Shaft
Base 20, Base 20a: Crimping mold Base 20-1, Base 20a-1: Central axis
Period 30: Conveyor

Claims (11)

In the reinforcing bar binding coupler that connects the reinforcing bars 100 formed with the nodes 101 and the ribs 102 protruding in a vertical direction to the outside at a predetermined interval, respectively,
The main body 1 is formed in a cylindrical shape with both sides open so that insertion of the reinforcing bars 100 is made on both sides, and tapered so that the inner diameter is narrowed to both the opened sides;
It is provided inside the main body 1 and is formed in a cylindrical shape through which the reinforcing bar 100 inserted into the main body 1 passes, and one end is caught by the tapered portion of the main body 1 so that it is not separated from the main body 1. The tapered shape, the fastener 10 to which the inserted reinforcing bar 100 is fixed;
A spring 40 that is in close contact with the support plate 50 and elastically supports the fixture 10;
When the reinforcing bar is inserted, a support plate 50 that prevents soaking in either side and supports the elastic springs 40 inserted in both sides;
A coupler for rebar binding and its manufacturing method consisting of; located in the center and serving as a support to support the support plate, and a fixing pin 60 for fixing the rebar while the support plate is pushed by turning the rebar after inserting it. The method of claim 1,
A stopper 20 that makes the fasteners 10 spaced apart by a certain width and holds the spaced fasteners 10 firmly;
After inserting into the O-ring insertion groove 13 formed in the fixture 10, the fixture 10 is closely fixed with the stopper 20 interposed therebetween, and the stopper 20 is damaged or falls out to the base plate 50 as the reinforcing bar is inserted. O-ring 30 for fixing each fixture 10 to the outer wall of the inserted reinforcing bar more firmly; including a coupler for reinforcing bar binding and a manufacturing method thereof The method of claim 1,
The fastener 10 is formed with a plurality of locking jaws 11 provided so that the nodes of the reinforcing bar 100 are engaged along the inner circumference, and the fastener holder 22 is fitted and coupled along the lower inner wall of the fastener 10. A stopper fitting groove (12) is formed, and an O-ring insertion groove (13) into which the O-ring (30) can be inserted is formed on the outer wall of one side of the lower end of the fixture (10), and a spring (40) is inserted into the end portion. A coupler for binding reinforcing bars, characterized in that the spring supports 14 are formed and a method of manufacturing the same The method of claim 1,
The fixing pin 60 for firmly fixing the reinforcing bar is composed of a female fixing pin 60a; and a male fixing pin 60b; and the female fixing pin is a square or polygonal head 60a-1 that can use a tool and A female fixing pin 60a having a conical body 60a-2 and a female screw 60a-3 to which a male fixing pin is assembled inside the body, which is thick and tapered toward the length of the head;
The square or polygonal head (60b-1) and the conical body (60b-2) which is thick and tapering toward the length of the head and a male screw (60b-3) to which the female fixing pin is assembled are formed. 60b); A coupler for binding reinforcing bars and a method of manufacturing the same, characterized in that it further comprises The method of claim 2,
The stopper 20 has a fixture separator 21 that separates each fixture 10 at regular intervals along a circular circumference, and a fixture holder 22 that locks the fixture 10 so that there is no flow. Coupler for reinforcing bar binding, characterized in that formed along the outer circumference of the stopper 20 and its manufacturing method The method of claim 2,
After inserting into the O-ring insertion groove 13 formed in the fixture 10, the fixture 10 is closely fixed to the stopper 20, and when the reinforcing bar is inserted, the stopper 20 is damaged or falls out to the support plate 50, respectively. The O-ring 30 that securely fixes the fastener of the inserted reinforcing bar to the outer wall of the inserted reinforcing bar is easy to insert into the O-ring insertion groove 13 formed in the fastener, and a cut O-ring cut part 31 ), characterized in that the rebar binding coupler and its manufacturing method The method of claim 1,
The central part of the coupler body 1 is characterized in that when a reinforcing bar is inserted while forming the central part of the coupler 1, a support plate 50 is formed to prevent soaking in one side and support the elastic springs 40 inserted in both sides. Coupler for binding reinforcing bars and manufacturing method thereof The method of claim 1,
A frame constituting a body for automatically manufacturing the coupler 1;
A hydraulic cylinder (unit 11) installed on one side of the frame (unit 10) and equipped with a compression mold (unit 20a) for taper-to-close the reinforcing bar insertion portion (1-1) of the coupler;
A crimping mold mounted on one side of the frame (group 10) and a hydraulic cylinder to taper the main body 1a of the coupler and the reinforcing bar insertion portion (1-1);
Consisting of a conveyor (conveyer unit 30) for automatically inserting the fixture assembly (10a) into the mold (unit 20, unit 20a); and a manufacturing machine (unit 1) in which the coupler 1 is automatically manufactured; A coupler for binding reinforcing bars and a method of manufacturing the same. According to claim 7
Fixture assembly (10a) that is inserted into the end of the conveyor (30), which is driven to automatically insert the fixture assembly into the crimping mold (20, 20a) (the part where the fixture assembly is inserted into the mold) A coupler for binding reinforcing bars and a manufacturing method thereof, characterized in that it further comprises a detection sensor (31) attached to detect the According to claim 7
It characterized in that it further comprises a central shaft (group 21) for holding the center of the fastener assembly (10a) inserted in the central portion of the compression mold (20, 20a) for pressing the inlet of the coupler body (1a) taperedly; Coupler for binding reinforcing bars and its manufacturing method According to claim 7
After the compression mold (20, 20a) tapers the inlet of the coupler body (1a) containing the fixing assembly (10a), the finished coupler (1) is discharged, and the fixing assembly (10a) is removed. A coupler for rebar, and a method of manufacturing the same, further comprising an ejector and an inserter for inserting the inserted fixture body 1a into the two molds (20, 20a)

Images