Reel, binding device, and binding system

Abstract

To provide a reel capable of stably reading and writing information.SOLUTION: The reel 20 includes a columnar portion 20a that forms a rotation axis and around which the wire W, which is a metallic wire, can be wound, a pair of flange portion 20a provided at both ends of the columnar portion 20a in the axial direction and protruding from the columnar portion 20b in the radial direction, and an information recording portion 20a disposed closer to the flange portion 20b than one end portion of the columnar portion 20c and at the center in the radial direction.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a reel wound with wire, a binding device for binding reinforcing bars with wire, and a binding system equipped with the binding device. [Background technology]

[0002] Steel bars are used in concrete structures to increase their strength, and are tied together with wire to prevent the bars from shifting from their designated positions when the concrete is poured.

[0003] Conventionally, a binding machine called a rebar binding machine has been proposed that feeds wire wound on a reel, winds the wire around two or more rebars, and twists the wire wound around the rebars to bind the two or more rebars with the wire.

[0004] A reel used in such a binding machine is described as a wire disk consisting of an integrally molded shaft tube and two side plates located at both ends of the shaft tube, with an anti-counterfeiting mark using a two-dimensional code in the inner hole of the shaft tube (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0005] [Patent Document 1] China Utility Model Registration No. 219044430 Summary of the Invention [Problem to be solved by the invention]

[0006] In order for an identification device to stably identify an anti-counterfeit mark attached to a wire disk that rotates using a wire, the anti-counterfeit mark must be located in a position where the identification device can identify it even when the wire disk rotates. Also, if the anti-counterfeit mark is a two-dimensional code, it can be read optically and is not affected by magnetism caused by the metal wire wound around the barrel.

[0007] However, if the anti-counterfeit mark is made into a medium that can read and write information without contact using radio waves, it will be susceptible to the magnetic influence of the wire, making it difficult to read and write information stably.

[0008] The present invention has been made to solve such problems, and provides a reel that allows stable reading and writing of information, a binding device that uses a wire wound on the reel, and a binding system that includes the binding device. [Means for solving the problem]

[0009] In order to solve the above-mentioned problems, the present invention provides a reel that includes a columnar portion that forms a rotating shaft and can wind a metal wire around, flange portions that are provided at both axial ends of the columnar portion and protrude radially beyond the columnar portion, and an information recording portion that is located closer to the flange portion than one end of the columnar portion and in the radial center.

[0010] The present invention also provides a binding device that includes a reel storage section that stores a reel wound with wire for binding reinforcing bars, the reel having a columnar section that forms a rotation axis and is capable of winding metal wire, flange sections that are provided at both axial ends of the columnar section and protrude radially beyond the columnar section, and an information recording section that is located closer to the flange section than one end of the columnar section and in the center in the radial direction, and the reel storage section is equipped with an information reading and writing section that reads and writes information from and to the information recording section.

[0011] Furthermore, the present invention is a binding system comprising a binding device and a moving body for moving the binding device, wherein the binding device comprises a reel accommodating section for accommodating a reel wound with wire for binding reinforcing bars, the reel comprising a columnar section forming a rotation axis and capable of winding metal wire, flange sections provided at both axial ends of the columnar section and protruding radially from the columnar section, and an information recording section located radially in the center and closer to the flange section than one end of the columnar section, and the reel accommodating section comprises an information reading and writing section for reading and writing information from and to the information recording section.

[0012] In the present invention, information relating to the reel is recorded in the information recording section in a readable and writable manner. [Effects of the Invention]

[0013] According to the present invention, the information recording section is positioned at the radial center of the reel, so that its radial position does not change significantly when the reel housed in the reel housing section rotates. Furthermore, the information recording section is suppressed from being affected by magnetism due to the metal wire wound around the columnar section. This allows information related to the reel to be stably written to the information recording section of the reel. Furthermore, information related to the reel can be stably read from the information recording section of the reel. Furthermore, information related to the reel read from the information recording section of the reel and information related to the wire wound on the reel can be updated and written to the information recording section. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a side view showing an example of a reel and a binding device according to an embodiment of the present invention, with essential parts cut away; [Figure 2] 1 is a cross-sectional view showing an example of a reel according to an embodiment of the present invention. [Figure 3A] 1 is a side view showing an example of a binding device according to an embodiment of the present invention; [Figure 3B] 1 is a side view seen from the back side showing an example of a binding device according to the present embodiment. [Figure 3C] FIG. 2 is a rear view showing an example of the binding device of the present embodiment. [Figure 4] 1 is a side view showing an example of a binding device according to an embodiment of the present invention, with some components not shown. [Figure 5] 1 is a side view showing an example of a binding system according to an embodiment of the present invention. [Figure 6] FIG. 2 is a side view showing an internal configuration of an example of a reinforcing bar binding machine. [Figure 7] 1 is a functional block diagram showing an example of a binding device according to an embodiment of the present invention; [Figure 8]1 is a perspective view showing an example of a binding system according to an embodiment of the present invention. [Figure 9A] 1 is a side view showing an example of the operation of the binding device of the present embodiment, with some components omitted from the illustration. FIG. [Figure 9B] 1 is a side view showing an example of the operation of the binding device of the present embodiment, with some components omitted from the illustration. FIG. [Figure 9C] 1 is a side view showing an example of the operation of the binding device of the present embodiment, with some components omitted from the illustration. FIG. [Figure 10A] FIG. 10 is a cross-sectional view showing another example of the reel of the present embodiment. [Figure 10B] FIG. 10 is a cross-sectional view showing another example of the reel of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the reel of the present invention, the binding device using the reel of the present invention, and the binding system including the binding device will be described with reference to the drawings.

[0016] <Configuration example of the reel and binding device according to this embodiment> Fig. 1 is a side view with essential parts broken away showing an example of a reel and a binding device according to this embodiment, and Fig. 2 is a cross-sectional view showing an example of a reel according to this embodiment. Fig. 3A is a side view showing an example of a binding device according to this embodiment, Fig. 3B is a side view of an example of a binding device according to this embodiment as seen from the rear, and Fig. 3C is a rear view of an example of a binding device according to this embodiment. Fig. 4 is a side view of an example of a binding device according to this embodiment with some components omitted, and Fig. 5 is a side view of an example of a binding system according to this embodiment.

[0017] First, the reel 20 used in the binding device 100 will be described. The reel 20 includes a cylindrical columnar portion 20a that forms a rotation axis and is capable of winding the wire W therearound, flange portions 20b that are provided on both axial ends of the columnar portion 20a and that protrude radially beyond the columnar portion 20a, and an information recording portion 20c that is located closer to the flange portion 20b than one end of the columnar portion 20a and in the center in the radial direction. In other words, the information recording portion 20c may be located at a position that overlaps with the flange in the axial direction. The wire W is wound around the columnar portion 20a between the pair of flange portions 20b.

[0018] The information recording unit 20c is a medium that can read and write information in a non-contact manner using radio waves, such as RFID (Radio Frequency Identification).

[0019] The information recording unit 20c includes a recording unit main body 20d and a base 20e. The recording unit main body 20d includes a semiconductor memory, an antenna, and the like (not shown). The recording unit main body 20d has a shape, for example, a rectangle, that fits within a circle the size of the outer diameter of the columnar unit 20a. The base 20e is made of a magnetic material that can block magnetism. This allows the magnetic material to suppress the influence of magnetism from the wire W, which is a metal wire wound around the columnar unit 20a, on the recording unit main body 20d. The base 20e has a shape, for example, a rectangle, that is larger than the recording unit main body 20d.

[0020] The information recording unit 20c has a base portion 20e located between the recording unit main body 20d and the reel 20, and the recording unit main body 20d is attached to the end face 20s of one of the flange portions 20b via the base portion 20e at a position where the recording unit main body 20d is inside a circle the size of the outer diameter of the columnar portion 20a.

[0021] The reel 20 has a hole 20f that penetrates radially from the outer periphery to the inner periphery of the columnar portion 20a. The reel 20 is configured so that the wire W wound around the columnar portion 20a can be seen from the inner periphery of the columnar portion 20a through the hole 20f.

[0022] Next, a binding device 100 that uses a reel 20 will be described. The binding device 100 includes a reinforcing bar binding machine 1 that binds the intersections of reinforcing bars S arranged in a lattice pattern with wire W, a slack forming unit 2 that pulls out the wire W from the reel 20 and forms slack in the wire W between the reinforcing bar binding machine 1 and the reel 20, and a reel storage unit 200 that stores the reel 20. Note that the slack forming unit 2 does not need to have the function of pulling out the wire W from the reel 20 as long as it can form slack.

[0023] 6 is a side view of the internal configuration of an example of a reinforcing bar binding machine. The reinforcing bar binding machine 1 is an example of a binding machine, and feeds a wire W in the forward direction indicated by an arrow F to wind it around a reinforcing bar S, and then feeds the wire W wound around the reinforcing bar S in the reverse direction indicated by an arrow R to wind it around the reinforcing bar S and cut it, and then twists the wire W and binds the reinforcing bar S with the wire W.

[0024] To achieve the above-mentioned functions, the rebar binding machine 1 is equipped with a wire feeding unit 3 that feeds the wire W and a wire guide 4 that guides the wire W. The rebar binding machine 1 also has a curl forming unit 5 that forms a path for winding the wire W fed by the wire feeding unit 3 around the rebar S, and a cutting unit 6 that cuts the wire W wound around the rebar S. The rebar binding machine 1 is further equipped with a binding unit 7 that twists the wire W wound around the rebar S, and a drive unit 8 that drives the binding unit 7.

[0025] The wire feeding unit 3 includes a pair of feed gears 30 that sandwich and feed the wire W. The rotation of a feed motor 31, which will be described later, is transmitted to the wire feeding unit 3, causing the feed gear 30 to rotate. As a result, the wire feeding unit 3 feeds the wire W sandwiched between the pair of feed gears 30 along the extension direction of the wire W. In a configuration in which multiple pieces of wire W, for example, two pieces of wire W, are fed to bind the reinforcing bars S, the two pieces of wire W are fed in a parallel state.

[0026] The wire feed unit 3 switches the rotation direction of the feed motor 31 between forward and reverse, thereby switching the rotation direction of the feed gear 30 and switching the feed direction of the wire W between forward and reverse, either feeding the wire W in the forward direction indicated by arrow F or feeding the wire W in the reverse direction indicated by arrow R.

[0027] The wire guides 4 are provided at predetermined positions upstream and downstream of the wire feeding unit 3 with respect to the feeding direction in which the wire W is fed in the forward direction. In a configuration in which two wires W are fed to bind reinforcing bars S, the wire guide 4 provided upstream of the wire feeding unit 3 regulates the radial orientation of the two wires W, aligns the two incoming wires W in parallel, and guides them between a pair of feed gears 30. The wire guide 4 provided downstream of the wire feeding unit 3 regulates the radial orientation of the two wires W, aligns the two incoming wires W in parallel, and guides them to the cutting unit 6 and the curl forming unit 5. Note that the wire guide upstream of the wire feeding unit 3 is not shown in FIG. 6. In the reinforcing bar binding machine 1, an insertion port 40 through which the wire W enters from outside is provided in a wire guide (not shown) upstream of the wire feeding unit 3.

[0028] The curl forming unit 5 includes a curl guide 50 that curls the wire W fed by the wire feeding unit 3, and an guiding guide 51 that guides the wire W curled by the curl guide 50 to the bundling unit 7. In the rebar bundling machine 1, the path of the wire W fed by the wire feeding unit 3 is regulated by the curl forming unit 5, so that the trajectory of the wire W forms a loop Ru as shown by the two-dot chain line in Figure 6, and the wire W is wound around the rebar S.

[0029] The cutting unit 6 includes a fixed blade unit 60 and a movable blade unit 61 that cuts the wire W in cooperation with the fixed blade unit 60. The cutting unit 6 cuts the wire W by the rotational movement of the movable blade unit 61 with the fixed blade unit 60 as a fulcrum axis. In the cutting unit 6, the movement of the binding unit 7 is transmitted to the movable blade unit 61.

[0030] The bundling unit 7 includes a locking member 70 that locks the wire W, and a sleeve 71 that operates the locking member 70. The driving unit 8 includes a torsion motor 80 and a reducer 81 that reduces speed and amplifies torque.

[0031] When the binding unit 7 is driven by the drive unit 8, the sleeve 71 activates the locking member 70 to lock the wire W. After the cutting unit 6 cuts the wire W in conjunction with the operation of the sleeve 71, the binding unit 7 twists the wire W by rotating the locking member 70 and the sleeve 71 to bind the reinforcing bar S.

[0032] In the rebar tying machine 1, the tying unit 7 is provided on an imaginary straight line 10L that is along the axial direction of the torsion motor 80, as shown by the dashed line in Figure 6. In addition, when the imaginary straight line 10L of the rebar tying machine 1 is oriented in the vertical direction, a curl guide 50 and an induction guide 51 are provided at the lower end of the machine in a form that protrudes from the main body 10.

[0033] Furthermore, the reinforcing bar binding machine 1 is provided with a wire feeding unit 3 on one side along a direction intersecting with the imaginary straight line 10L, which is a direction intersecting with the axial direction of the torsion motor 80.

[0034] Furthermore, in the binding device 100, a slack forming unit 2 is provided on the side of the reinforcing bar binding machine 1 where the wire feeding unit 3 is provided, i.e., on one side of the reinforcing bar binding machine 1 along a direction that intersects with the imaginary line 10L, which in turn intersects with the axial direction of the torsion motor 80. The slack forming unit 2 forms slack in the wire W between the reinforcing bar binding machine 1 and the reel 20.

[0035] Furthermore, in the binding device 100, a reel storage section 200 is provided above the reinforcing bar binding machine 1 along the direction in which the imaginary line 10L, which is the direction along the axial direction of the torsion motor 80, extends.

[0036] The reel housing 200 rotatably and detachably houses a reel 20 around which a long wire W is wound so as to be able to be unwound. The wire W is a wire made of a metal wire that can be plastically deformed, a wire made of a metal wire coated with resin, or a twisted wire.

[0037] In a configuration in which the reinforcing bar binding machine 1 binds reinforcing bars S with multiple wires W, the reel storage unit 200 stores multiple reels 20 corresponding to the number of wires W, and each reel 20 is able to pull out multiple wires W as it rotates. For example, in a configuration in which the reinforcing bar binding machine 1 binds reinforcing bars S with two wires W, the reel storage unit 200 stores two reels 20 each with one wire W wound around it, and each reel 20 is able to pull out two wires W as it rotates. The reel storage unit 200 includes a shaft (not shown) that rotatably supports the reels 20, and rotatably stores the two reels 20 arranged coaxially.

[0038] The reel housing section 200 includes an information reading / writing section 201 that reads and writes information from and to the information recording section 20c. The reel housing section 200 houses the reel 20 with the information recording section 20c facing outward. The information reading / writing section 201 is provided at a position facing the information recording section 20c of the reel 20 housed in the reel housing section 200 without making contact with it.

[0039] In a configuration in which the rebar tying machine 1 binds rebars S with two wires W, as shown in Figure 3C, the information reading and writing unit 201 is supported on the axial outside of each reel 20 via a support unit 201a and is positioned opposite the information recording unit 20c of the reel 20 without contacting it.

[0040] The information recording unit 20c is disposed at the center in the radial direction of the reel 20, so that its radial position does not change significantly when the reel 20 accommodated in the reel accommodating unit 200 rotates. This prevents the information recording unit 20c from moving out of a position where information can be read and written by the information reading and writing unit 201 when the reel 20 rotates due to the drawing out of the wire W.

[0041] The reel accommodating section 200 may be provided with a braking section that allows rotation of the reel 20 in the direction in which the wire W is pulled out, but restricts rotation of the reel 20 in the opposite direction.

[0042] The slack forming unit 2 is an example of a drawing unit, and includes a first slack forming unit 21 and a second slack forming unit 22. The first slack forming unit 21 is an example of a slack forming mechanism, and includes a first slack forming roller 21a, a guide plate 21b, and guide members 21c and 21d.

[0043] First slack forming roller 21a is an example of a wire pull-out member, and is provided on one side of the wire W extending between reel 20 stored in reel storage section 200 and rebar binding machine 1. First slack forming roller 21a is disc-shaped with a thickness greater than the diameter of wire W, and guide surface 21f with which wire W comes into contact is formed on the outer periphery of the disc. First slack forming roller 21a is supported between a pair of guide plates 21b so as to be rotatable about shaft 21g.

[0044] Guide plates 21b are provided on both axial sides of first slack forming roller 21a, sandwiching first slack forming roller 21a. In a configuration in which reinforcing bars S are bound with two wires W, first slack forming rollers 21a are provided on both sides of one guide plate 21b, and guide plates 21b are provided on the outer sides of each first slack forming roller 21a.

[0045] Guide member 21c is provided opposite guide surface 21f of first slack forming roller 21a in the path of wire W entering first slack forming unit 21. Guide member 21c is provided between the pair of guide plates 21b in the form of, for example, a cylindrical member extending in a direction intersecting with guide plates 21b.

[0046] The guide member 21d is provided on the path of the wire W coming out of the first slack forming portion 21. The guide member 21d is, for example, a roller that is rotatable about a shaft 21h as a fulcrum and is provided between the pair of guide plates 21b.

[0047] The shafts 21h of the guide members 21c and 21d also function as spacers that define the gap between the pair of guide plates 21b.

[0048] Guide plate 21b is shaped to cover at least a portion of the side of first slack forming roller 21a and at least a portion of the side of guide members 21c and 21d, and to support first slack forming roller 21a and guide members 21c and 21d.

[0049] The second slack forming unit 22 is an example of a slack forming mechanism, and includes a second slack forming roller 22a, a guide plate 22b, and guide members 22c and 22d.

[0050] The second slack forming roller 22a is an example of a wire pull-out member, and is provided on the other side of the wire W extending between the reel 20 stored in the reel storage section 200 and the rebar binding machine 1. The second slack forming roller 22a is in the shape of a disk with a thickness greater than the diameter of the wire W, and a guide surface 22f with which the wire W comes into contact is formed on the outer periphery of the disk. The second slack forming roller 22a is supported between a pair of guide plates 22b so as to be rotatable about an axis 22g as a fulcrum.

[0051] Guide plates 22b are provided on both axial sides of second slack forming roller 22a, sandwiching second slack forming roller 22a. In a configuration in which reinforcing bars S are bound with two wires W, second slack forming rollers 22a are provided on both sides of one guide plate 22b, and guide plates 22b are provided on the outer sides of each second slack forming roller 22a.

[0052] The guide member 22c is provided on the path of the wire W that enters the second slack forming portion 22 from the first slack forming portion 21. The guide member 22c is, for example, a roller that is rotatable about an axis 22h as a fulcrum and is provided between the pair of guide plates 22b.

[0053] Guide member 22d is provided opposite guide surface 22f of second slack forming roller 22a in the path of wire W exiting second slack forming section 22. Guide member 22d is provided between the pair of guide plates 22b in the form of, for example, a cylindrical member extending in a direction intersecting with guide plates 22b.

[0054] The shafts 22h of the guide members 22c and 22d also function as spacers that define the gap between the pair of guide plates 22b.

[0055] Guide plate 22b is shaped to cover at least a portion of the side of second slack forming roller 22a and at least a portion of the side of guide members 22c and 22d, and to support second slack forming roller 22a and guide members 22c and 22d.

[0056] The binding device 100 includes a first guide portion 21i that guides the movement of the first slack forming portion 21, a second guide portion 22i that guides the movement of the second slack forming portion 22, and a drive portion 25 that moves the first slack forming portion 21 and the second slack forming portion 22.

[0057] The first guide portion 21i, the second guide portion 22i and the drive portion 25 are examples of moving portions, which move the first slack forming portion 21 equipped with the first slack forming roller 21a and the second slack forming portion 22 equipped with the second slack forming roller 22a relatively in directions toward and away from each other along a direction intersecting the extension direction of the wire W.

[0058] The first guide portion 21i movably guides the first slack forming portion 21 in a direction along the feed path WL of the wire W, which is defined by the wire feed portion 3, wire guide 4, etc., as the wire W enters the rebar binding machine 1 from the insertion port 40. The second guide portion 22i movably guides the second slack forming portion 22 in a direction along the feed path WL of the wire W as it enters the rebar binding machine 1. The second guide portion 22i supports the second slack forming portion 22 so that the guide surface 22f of the second slack forming roller 22a is positioned on an extension of the feed path WL of the wire W as it enters the rebar binding machine 1, which is defined by the wire feed portion 3, wire guide 4, etc.

[0059] Driving unit 25 includes a pair of pulleys 25a and 25b, a belt 25c wound around pulleys 25a and 25b, and a motor 25d that drives one of pulleys 25a. Driving unit 25 also includes a first connecting portion 25e that connects first slack forming portion 21 and belt 25c, and a second connecting portion 25f that connects second slack forming portion 22 and belt 25c.

[0060] Pulley 25a is provided on the side closer to the rebar binding machine 1 in the movement direction of first slack forming unit 21 and second slack forming unit 22. Pulley 25b is provided on the side farther from the rebar binding machine 1 in the movement direction of first slack forming unit 21 and second slack forming unit 22. Belt 25c extends in the movement direction of first slack forming unit 21 and second slack forming unit 22. First connecting portion 25e is connected to one side of belt 25c extending between the pair of pulleys 25a, 25b, and second connecting portion 25f is connected to the other side of belt 25c extending between the pair of pulleys 25a, 25b.

[0061] One side and the other side of belt 25c stretching between a pair of pulleys 25a, 25b move in the opposite direction as pulley 25a is rotated by motor 25d, whereby first slack forming portion 21 and second slack forming portion 22 move relatively toward or away from each other depending on the direction of rotation of motor 25d.

[0062] The first slack forming roller 21a comes into contact with the wire W from one side as the first slack forming portion 21 and the second slack forming portion 22 move relatively toward and away from each other along a direction intersecting the extension direction of the wire W. The second slack forming roller 22a comes into contact with the wire W from the other side as the first slack forming portion 21 and the second slack forming portion 22 move relatively toward and away from each other along a direction intersecting the extension direction of the wire W.

[0063] The binding device 100 includes a first guide portion 23 and a second guide portion 24. The first guide portion 23 is provided between the reel 20 and the first slack forming portion 21. The first guide portion 23 directs the path of the wire W, which passes between a pair of guide plates 23a and is pulled out from the reel 20, toward the first slack forming portion 21.

[0064] The second guide portion 24 is provided between the second slack forming portion 22 and the rebar binding machine 1. The second guide portion 24 allows the wire W to pass through when the wire feeding portion 3 feeds the wire W, and may be provided with a braking portion that restricts the passage of the wire W when the slack forming portion 2 forms slack in the wire W.

[0065] The wire W unwound from the reel 20 extends laterally across the axial direction of the torsion motor 80 relative to the rebar binding machine 1, and its path is changed by the first guide unit 23 toward the slack forming unit 2. The wire W passing through the slack forming unit 2 has its path changed by the second slack forming roller 22a toward the wire feed unit 3 of the rebar binding machine 1.

[0066] The binding device 100 includes a guide portion 26 that forms a path through which the wire W passes between the reel 20 and the first guide portion 23. In a configuration in which the reinforcing bars S are bound with two wires W, the first guide portion 23 and the guide portion 26 are provided corresponding to each reel 20. Furthermore, in order to accommodate the difference between the spacing between the two reels 20 and the spacing between the two first guide portions 23, the guide portion 26 guides the path through which the two wires W pass so that the spacing between the paths gradually narrows from each reel 20 toward the first guide portion 23.

[0067] The binding device 100 is equipped with various parts such as a rebar binding machine 1, a reel storage section 200 that stores multiple reels 20, and a slack forming section 2 so that the rebar binding machine 1, the reel storage section 200, and the slack forming section 2 can move as a unit.

[0068] Therefore, in the binding device 100, the rebar binding machine 1 is attached to the binding machine support portion 101, and the reel storage portion 200 is attached to the storage portion support portion 102. In addition, the binding machine support portion 101 is attached to the storage portion support portion 102. Furthermore, in the binding device 100, the slack forming portion 2 is attached to the slack forming portion support portion 103. In addition, in the binding device 100, the storage portion support portion 102 and the slack forming portion support portion 103 are attached to the support portion 104.

[0069] In the binding device 100, a support part 104 is provided above the rebar binding machine 1 and the reel storage part 200 in the axial direction of the torsion motor 80, and an attachment part 105 to which the robot arm 300 is attached is provided on the support part 104. In addition, a support part 201a that supports the information reading and writing part 201 is provided in a form that extends downward from the support part 104.

[0070] In addition, the slack forming unit 2 has a first slack forming unit 21, a second slack forming unit 22, and a drive unit 25 provided on one side of the slack forming unit support unit 103, and a control unit 250 for the drive unit 25 and the like provided on the other side opposite to the one side of the slack forming unit support unit 103. The control unit 250 includes a control board (not shown) and a board accommodating unit 250a for accommodating the control board.

[0071] As shown in FIG. 6, in the rebar tying machine 1, the binding unit 7 is provided on an imaginary line 10L that is aligned with the axial direction of the torsion motor 80. The imaginary line 10L is coaxial with the rotation axis of the binding unit 7, and the rotation axis of the binding unit 7 is coaxial with the rotation axis of the torsion motor 80. In addition, as shown in FIG. 5, in the binding device 100, the attachment unit 105 is provided on the imaginary line 10L. As a result, in the binding device 100, the binding unit 7 and the attachment unit 105 are provided on the same imaginary line 10L. Therefore, when the orientation of the rebar tying machine 1 is oriented in the up-down direction with the curl forming unit 5 facing downward, the binding unit 7 is provided vertically below the attachment unit 105.

[0072] In addition, when the binding device 100 is viewed from the side, the reel storage section 200 stores the reel 20 so that the axis of rotation of the reel 20 is located on an imaginary straight line 10L passing through the binding section 7 and the mounting section 105.

[0073] 7 is a functional block diagram showing an example of a binding device according to this embodiment. A control unit 250 controls a feed motor 31 that drives the wire feed unit 3, a torsion motor 80 of a drive unit 8 that drives the binding unit 7, a motor 25d of a drive unit 25 that drives the slack forming unit 2, and an information read / write unit 201 that reads and writes information from and to the information recording unit 20c. The control unit 250 executes control of the reinforcing bar binding machine 1 to bind the reinforcing bar S with the wire W, control of the slack forming unit 2 to pull out the wire W from the reel 20 and form slack in the wire W between the reel 20 and the reinforcing bar binding machine 1, and control of the information read / write unit 201 to read and write information from and to the information recording unit 20c.

[0074] <Configuration example of the bundling system according to this embodiment> 8 is a perspective view showing an example of a binding system according to this embodiment. A binding system 301 includes the binding device 100 described above, a robot arm 300, and a stand 311 on which the robot arm 300 is mounted.

[0075] In the description of the binding system 301, the X, Y, and Z directions refer to the directions shown in Fig. 8. The X, Y, and Z directions are perpendicular to each other, the XY plane is a substantially horizontal plane, and the Z direction is a direction substantially along the vertical.

[0076] The mount 311 includes four pillars 312 erected at the four corners in the X and Y directions, and a plurality of beams 313 spanning the upper ends of the pillars 312 in the X and Y directions.

[0077] In the bundling system 301, a workpiece B, which is made up of a plurality of reinforcing bars S arranged in a lattice pattern, is held by a workpiece holding unit 302. The workpiece holding unit 302 includes a holder 321 for holding the workpiece B.

[0078] The holder 321 is formed in the shape of a rectangular plate with four sides aligned along the X and Y directions. Support plates 321a are erected on the four sides of the holder 321 to support a plurality of reinforcing bars S that constitute the workpiece B. The support plates 321a have a plurality of U-shaped grooves 321b that open upward, and the reinforcing bars S are inserted into the U-shaped grooves 321b. The multiple reinforcing bars S are arranged in a lattice pattern along the X and Y directions with their ends inserted into the U-shaped grooves 321b of the support plates 321a.

[0079] The robot arm 300 is an example of a moving body, and is supported by a moving mechanism 346 to move the binding device 100 to a desired position.

[0080] The movement mechanism 346 includes a Y-direction slider 346a suspended on the beam 313 of the stand 311. The Y-direction slider 346a moves the robot arm 300 in the Y direction. Note that the movement mechanism 346 may include, for example, a mechanism for moving the robot arm 300 in the X direction. Furthermore, if the operating range of the robot arm 300 can cover the entire binding area E2 without relying on the movement mechanism 346, the movement mechanism 346 does not need to be provided.

[0081] The robot arm 300 is a ceiling-suspended articulated robot, and is installed facing downward on a Y-direction slider 346a suspended on a beam 313. Specifically, the robot arm 300 includes a base 341, a plurality of arms 342, an end effector 343, and a plurality of joints 344. Note that the robot arm 300 is not limited to an articulated robot.

[0082] The arms 342 are connected in series with each other at the base end portion of the base portion 341. The base portion 341 is supported by a Y-direction slider 346a of a movement mechanism 346 and is movable in the Y direction.

[0083] The plurality of joints 344 rotatably connect the base 341, the plurality of arms 342, and the end effector 343. Each joint 344 is provided with a motor (not shown) and is driven by the motor to rotate.

[0084] The end effector 343 is connected to the tips of the multiple arms 342. The binding device 100 is supported on the end effector 343 via the attachment portion 105.

[0085] The binding system 301 moves the binding device 100 with the robot arm 300 along the XY plane along the installation surface of the reinforcing bar S, and also moves the binding device 100 with the robot arm 300 in directions toward and away from the installation surface of the reinforcing bar S, thereby moving the binding device 100 with the robot arm 300 to the position of the intersection P of the object to be bound and performing the binding operation.

[0086] The bundling system 301 may be configured to include an overall photographing unit that photographs the entire work B all at once or for each of its divided areas, and an individual photographing unit that photographs the intersections P of the rebars S to be bound individually at a higher resolution than that of the overall photographing unit.The bundling system 301 may then obtain positional information of the intersections P of the rebars S for each bundling target from the image information obtained by the individual photographing unit, which information is more accurate than the positional information of each intersection P of the rebars S obtained by photographing the entire work B with the overall photographing unit, and move the binding device 100 with the robot arm 300.

[0087] <Example of operation of the binding device according to this embodiment> 9A, 9B, and 9C are side views showing an example of the operation of the binding device of this embodiment, with some components omitted.

[0088] In the binding device 100, depending on the direction of rotation of the motor 25d, the first slack forming unit 21 and the second slack forming unit 22 move relatively away from each other from the standby position shown in Figure 4, etc. to the slack forming position shown in Figure 9A, and also move relatively closer to each other from the slack forming position shown in Figure 9A to the standby position shown in Figure 9B.

[0089] In the binding device 100, when the first slack forming unit 21 moves from the standby position to the slack forming position, the first slack forming roller 21a moves in a direction approaching the rebar binding machine 1. When the first slack forming roller 21a moves in a direction approaching the rebar binding machine 1, the guide surface 21f of the first slack forming roller 21a comes into contact with the wire W from one side of the wire W extending between the reel 20 and the rebar binding machine 1, and pulls the portion of the wire W in contact with the guide surface 21f in a direction approaching the rebar binding machine 1.

[0090] In the binding device 100, when the second slack forming unit 22 moves from the standby position to the slack forming position, the second slack forming roller 22a moves in a direction away from the rebar binding machine 1. When the second slack forming roller 22a moves in a direction away from the rebar binding machine 1, the guide surface 22f of the second slack forming roller 22a comes into contact with the wire W from the other side of the wire W extending between the reel 20 and the rebar binding machine 1, and pulls the portion of the wire W in contact with the guide surface 22f in a direction away from the rebar binding machine 1.

[0091] The wire W entering the rebar binding machine 1 is clamped between a pair of feed gears 30. The pair of feed gears 30 are prevented from rotating due to an external force while the drive of the feed motor 31 is stopped. As a result, even if the second slack forming roller 22a moves in a direction away from the rebar binding machine 1 and a force is applied to the portion of the wire W in contact with the guide surface 22f in a direction away from the rebar binding machine 1, the wire W is prevented from being pulled out from between the pair of feed gears 30 in a direction that would cause it to slip out.

[0092] The path of the wire W pulled out from the reel 20 is changed by the first guide portion 23 between the reel 20 and the first slack forming roller 21a toward the slack forming portion 2. As a result, the first slack forming roller 21a moves in a direction approaching the rebar binding machine 1, and the portion of the wire W in contact with the guide surface 21f is pulled in a direction approaching the rebar binding machine 1, thereby applying a force to pull the wire W out from the reel 20.

[0093] In addition, when the second slack forming roller 22a moves in a direction away from the rebar binding machine 1, the portion of the wire W in contact with the guide surface 22f is pulled in a direction away from the rebar binding machine 1, and a force is applied via the first slack forming roller 21a to pull the wire W out from the reel 20.

[0094] The reel 20 can rotate when a force is applied to pull out the wire W. As a result, when the first slack forming roller 21a moves in a direction toward the rebar binding machine 1 and the second slack forming roller 22a moves in a direction away from the rebar binding machine 1, the reel 20 is rotated in the direction of arrow C and the wire W is pulled out from the reel 20.

[0095] In the binding device 100, when the first slack forming unit 21 moves from the slack forming position to the standby position, the first slack forming roller 21a moves in a direction away from the rebar binding machine 1. When the first slack forming roller 21a moves in a direction away from the rebar binding machine 1, the guide surface 21f moves away from the wire W. Furthermore, in the binding device 100, when the second slack forming unit 22 moves from the slack forming position to the standby position, the second slack forming roller 22a moves in a direction approaching the rebar binding machine 1. When the second slack forming roller 22a moves in a direction approaching the rebar binding machine 1, the guide surface 22f moves away from the wire W. As a result, a slack portion WB is formed in the wire W between the reel 20 and the rebar binding machine 1.

[0096] The second slack forming unit 22 is supported by the second guide unit 22i so that the guide surface 22f is located on an extension of the feed path WL of the wire W entering the rebar binding machine 1, which is defined by the wire feed unit 3, the wire guide 4, etc. The second slack forming unit 22 is also guided by the second guide unit 22i so that it can move in a direction along the feed path WL of the wire W entering the rebar binding machine 1. This prevents the wire W entering the rebar binding machine 1 from changing significantly with respect to the feed path WL when the second slack forming unit 22 moves from the standby position to the slack forming position, and from the slack forming position to the standby position.

[0097] As shown in Fig. 9B, when slack WB is formed in the wire W by the slack forming unit 2, the rebar tying machine 1 feeds the wire W in the positive direction indicated by arrow F by the wire feeding unit 3 shown in Fig. 6, and winds the wire W around the rebar S by the curl forming unit 5. When the wire feeding unit 3 feeds the wire W in the positive direction indicated by arrow F, the slack portion WB of the wire W is fed as shown in Fig. 9C. As a result, it is not necessary to rotate the reel 20 with the force of the wire feeding unit 3 feeding the wire W in the positive direction indicated by arrow F, which reduces the load on the wire feeding unit 3 and also suppresses the occurrence of poor wire feeding by the wire feeding unit 3.

[0098] In order to wind the wire W wound around the reinforcing bar S onto the reinforcing bar S, when the wire feeding unit 3 feeds the wire W in the reverse direction indicated by the arrow R, slack is formed in the wire W according to the amount of wire W fed in the reverse direction. This eliminates the need to rotate the reel 20 with the force of the wire feeding unit 3 feeding the wire W in the reverse direction indicated by the arrow R, reducing the load on the wire feeding unit 3 and suppressing the occurrence of poor wire feeding by the wire feeding unit 3.

[0099] In addition, in the binding device 100, the slack forming unit 2 forms a slack region WB corresponding to the amount of wire W required in the operation of binding the reinforcing bar S with the reinforcing bar binding machine 1, and then the operation of binding the reinforcing bar S is performed with the reinforcing bar binding machine 1. In addition, the slack forming unit 2 may be operated while the operation of binding the reinforcing bar S with the reinforcing bar binding machine 1 is being performed, and the slack forming unit 2 may form a slack region WB corresponding to the amount of wire W required in the operation of binding the next reinforcing bar S.

[0100] The information recording unit 20c records the type of wire W wound around the reel 20, the length of the wire W wound during production, the production date when the wire W was wound around the reel 20, a lot number assigned by production date, by type of wire W, etc. This information is recorded when the reel 20 is manufactured. The control unit 250 can read this information from the information recording unit 20c using the information reading / writing unit 201.

[0101] The information recording unit 20c may also write information related to the bundling operation, such as the remaining amount of wire W. In a bundling operation in which reinforcing bars S are bundled with wire W, the length (amount) of wire W used in one bundling operation is roughly determined depending on the diameter of the reinforcing bars S. Therefore, the control unit 250 reads the length of the wire W wound around the reel 20 before the bundling operation is performed from the information recording unit 20c using the information reading / writing unit 201. When the control unit 250 performs the bundling operation, it calculates the length of the wire W used depending on the number of bundling operations, subtracts this length from the length of the wire W before the bundling operation, and calculates the remaining amount (length) of wire W wound around the reel 20, and writes this to the information recording unit 20c using the information reading / writing unit 201. This allows the control unit 250 to notify the remaining number of bundling operations possible, etc.

[0102] The information recording unit 20c is attached to the reel 20 in such a position that the base portion 20e is located between the recording unit main body 20d and the reel 20, and the recording unit main body 20d is located inside a circle having the same diameter as the outer periphery of the columnar portion 20a.

[0103] This allows the information reading and writing unit 201 to read and write information from and to the information recording unit 20c in a state where the influence of magnetism due to the wire W wound around the reel 20 is suppressed.

[0104] Furthermore, when the wire W is used in the bundling operation, the remaining amount (winding diameter) of the wire W wound on the reel 20 decreases. When the remaining amount of the wire W wound on the reel 20 decreases, the magnetism changes. In response to this, the information recording unit 20c can read and write information using the information reading and writing unit 201 in a state where the influence of the change in magnetism caused by the decrease in the remaining amount of the wire W wound on the reel 20 is suppressed.

[0105] Furthermore, since the information recording section 20c is disposed in the center of the reel 20 in the radial direction, the position of the information recording section 20c in the radial direction does not change significantly when the reel 20 housed in the reel housing section 200 rotates.

[0106] This allows the information reading / writing unit 201 to read and write information from and to the information recording unit 20c even when the reel 20 rotates during the bundling operation.

[0107] In addition, the binding device may be configured to have a reel storage section, no slack forming section that forms slack in the wire, and the reel used in a reinforcing bar binding machine that can be held by hand, equipped with the above-mentioned information recording section, and the reel storage section of the reinforcing bar binding machine equipped with the above-mentioned information reading and writing section.

[0108] <Another example of the reel configuration according to this embodiment> 10A and 10B are cross-sectional views showing other examples of the reel of the present embodiment. In the reel 20G shown in Fig. 10A, the information recording unit 20c is arranged such that the base 20e is located between the recording unit main body 20d and the reel 20, and the recording unit main body 20d is attached to the columnar portion 20a, which is located inside the end surface 20s of one flange 20b, via the base 20e, at a position where the recording unit main body 20d is inside a circle having a diameter equal to the outer periphery of the columnar portion 20a.

[0109] In the reel 20H shown in FIG. 10B, the information recording section 20c does not have a base section 20e, and is attached to the end surface 20s of one flange section 20b at a position inside a circle the size of the outer diameter of the columnar section 20a. [Explanation of symbols]

[0110] 100... Binding device, 101... Binding machine support portion, 102... Storage portion support portion, 103... Slack forming portion support portion, 104... Support portion, 105... Mounting portion, 1... Reinforcing bar binding machine (binding machine), 2... Slack forming portion, 20, 20G, 20H... Reel, 20a... Column portion, 20b... Flange portion, 20s... End surface, 20c... Information recording unit, 20d... recording unit main body, 20e... base unit, 20f... hole unit, 200... reel accommodating unit, 201... information reading / writing unit, 201a... support unit, 21... first slack forming unit (slack forming mechanism unit), 21a... first slack forming roller (wire drawing member), 21b... guide plate, 21c, 21d... guide member, 21f ···guide surface, 21g···shaft, 21h···shaft, 21i···first guide portion, 22···second slack forming portion (slack forming mechanism portion), 22a···second slack forming roller (wire drawing member), 22b···guide plate, 22c, 22d···guide member, 22f···guide surface, 22g···shaft, 22h···shaft, 22i···second Guide portion, 23... first guide portion, 23a... guide plate, 24... second guide portion, 25... drive portion, 25a, 25b... pulley, 25c... belt, 25d... motor, 25e... first connecting portion, 25f... second connecting portion, 26... guide portion, 300... robot arm (moving body), 301... binding system

Claims

1. a columnar portion that forms a rotation axis and around which a metal wire can be wound; Flange portions are provided at both axial ends of the columnar portion and protrude radially beyond the columnar portion; an information recording section disposed at the center in the radial direction and closer to the flange section than one end of the columnar section; Reel with.

2. The information recording section has a shape that fits within a circle having the same diameter as the outer periphery of the columnar section. The reel according to claim 1.

3. The information recording unit The recording unit has a main body and a base. the base is made of a magnetic material capable of shielding from magnetism, The recording unit main body is attached via the base unit. The reel according to claim 1.

4. The recording unit body has a shape that fits into a circle having the same diameter as the outer periphery of the columnar unit. The reel according to claim 3.

5. The information recording unit is attached to the end surface of the flange unit. The reel according to claim 1.

6. A hole is provided which penetrates the columnar portion in a radial direction from the outer periphery to the inner periphery. The reel according to claim 1.

7. a reel accommodating section for accommodating a reel around which a wire for binding reinforcing bars is wound, The reel, a columnar portion that forms a rotation axis and around which a metal wire can be wound; flange portions provided at both axial ends of the columnar portion and protruding radially from the columnar portion; an information recording section disposed at the center in the radial direction, closer to the flange section than one end of the columnar section; The reel housing section is provided with an information reading / writing section that reads and writes information from and to the information recording section. Binding device.

8. A binding device; a moving body that moves the binding device, The binding device is a reel accommodating section for accommodating a reel around which a wire for binding reinforcing bars is wound, The reel, a columnar portion that forms a rotation axis and around which a metal wire can be wound; Flange portions are provided at both axial ends of the columnar portion and protrude radially beyond the columnar portion; an information recording section disposed at the center in the radial direction, closer to the flange section than one end of the columnar section; The reel housing section is provided with an information reading / writing section that reads and writes information from and to the information recording section. Binding system.

Images