JP3454911B2 - Composite rebar bending equipment - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rebar bending machine for bending a rebar and a metal member machine for cutting and drilling holes in a metal member. The present invention relates to a composite rebar bending device attached to a casing, and more particularly to a composite rebar bending device that shares a power source for a rebar bending machine and a metal member processing machine. 2. Description of the Related Art Conventionally, a composite reinforcing bar bending machine in which a reinforcing bar bending machine for bending a reinforcing bar and a metal member processing machine for cutting or drilling a metal member such as a rigid material are attached to the same main body casing. The device is known. [0003] In the conventional composite rebar bending apparatus, a rebar bending machine and a metal member processing machine are assembled in the same main body casing, so that the apparatus is carried into a construction site for civil engineering construction. It has the advantage that it can be used in various places in a single place without taking up space. However, in the conventional composite rebar bending apparatus, the rebar bending machine and the metal member processing machine are merely assembled in the same main body casing, and the drive systems of both are completely independent structures. Therefore, there is a problem that the device becomes large and heavy, and the operation is not easy. [0005] The present invention has been made in view of the above points, and provides a composite rebar bending apparatus capable of reducing the size and weight of the apparatus and improving operability. The purpose is to: [0006] A rebar bending machine provided on an upper surface of the main body casing and for turning a rebar bending roll around a rebar receiving sleeve to bend the rebar; and provided on a side surface of the main body casing. And a metal member processing machine that reciprocates the movable body with respect to the fixed body to perform processing such as cutting and drilling holes on the metal member. A motor; forward rotation transmitting means for transmitting only the forward rotation force of the motor to the rebar bending machine via a clutch mechanism, and driving the rebar bending roll; and transmitting only the reverse rotation force of the motor via the clutch mechanism. Reverse rotation force transmission means for transmitting to the metal member processing machine and driving the movable body, and a changeover switch for switching the rotation direction of the motor are provided respectively. It is characterized by having. In the present invention, when using a rebar bending machine, first, the changeover switch is switched to the normal rotation side. Then, the motor rotates forward, and the forward rotation force of the motor is transmitted to the rebar bending machine via the forward-rotation force transmitting means, and the rebar bending roll is driven. On the other hand, when using a metal member processing machine, the changeover switch is switched to the reverse rotation side. Then, the motor rotates reversely, and the reverse rotation force of the motor is transmitted to the metal member processing machine via the reverse rotation force transmitting means, and the movable body is driven. Incidentally, each of the transmitting means has a clutch mechanism and has a structure for transmitting only a forward rotation force or a reverse rotation force of the motor. For this reason, the rebar bending machine and the metal member processing machine can be easily switched only by switching the changeover switch,
It is possible to make a selection and improve operability. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to the drawings, an embodiment of a composite rebar bending apparatus according to the present invention will be described below. FIGS. 1 and 2 show an example of a composite rebar bending apparatus according to the present invention. The composite rebar bending apparatus 10 includes an upper plate 11a and a lower portion orthogonal to the upper plate 11a. A main body casing 11 including four side plates 11b and a bottom plate 11c at a lower end is provided. A reinforcing bar bending machine 100 is provided on the upper surface side of the main body casing 11, and a reinforcing bar processing is provided on the front side of the main body casing 11. A machine 200 is provided. That is, the upper plate 1 of the main casing 11
1a, a roll shaft 12 and a sleeve shaft 13 are provided so as to protrude in parallel with each other, and a reinforcing bar bending roll 14 and a reinforcing bar receiving sleeve 15 are provided at upper ends of these shafts, respectively.
Are rotatably fitted. The roll shaft 12 projects through an arc-shaped long hole 16 formed in the upper surface plate 11a, and the sleeve shaft 13 is disposed at the center of the arc forming the long hole 16. ing. The sleeve shaft 13 is penetrated and fixed to the upper surface plate 11a, and the main body casing 11 below the sleeve shaft 13 is fixed.
Inside, a bearing block 18 is rotatably mounted via a bearing 17. A large gear 19 is fitted near the center of the bearing block 18 so that its axis coincides with the sleeve shaft 13, and is firmly fixed to the bearing block 18. The lower end of the roll shaft 12 is fitted into one end of the large gear 19. The reason why the bearing block 18 and the large gear 19 are formed as separate members is for processing and assembling reasons, and these can be configured as an integral part. A rotating shaft 21 is fitted and fixed below the bearing block 18 from below. The rotating shaft 21 has an arm 22 a extending in the horizontal direction,
A dog body 22 extending downward from the tip of “a” is fitted. The rotating shaft 21 further includes a dog body 22.
The micro switch mounting base 23 is rotatably fitted at a position below the base. The microswitch mount 23 has an arm 23a extending in the horizontal direction, and a flange 23b extending downward from the tip of the arm 23a. A micro switch 24 is provided on the upper surface of the arm 23a,
It is turned on and off by the dog 22b of the dog body 22. The distal end of a lever 25 inserted through the side plate 11b of the main casing 11 from the outside is further inserted into the flange portion 23b of the massuro switch mounting base 23. The lever 25 is for adjusting the bending angle of the reinforcing bar, and an angle adjusting knob 27 is fixed to a portion protruding outside the side plate 11b, and a horizontal direction is provided between the knob 27 and the side plate 11b. The angle scale plate 26 extending to the side plate 11b is fixed to the side plate 11b. A long hole 26a extending in the horizontal direction is formed in the angle scale plate 26, and the lever 25 projects outward through a long hole (not shown) formed in the side plate 11b. The distal end of the lever 25 has a flange 23
a spring 28 is disposed between the angle scale plate 26 and the spring 27.
Is pressed against. As shown in FIG. 1, a torsion spring 29 is mounted on the outer periphery of the rotary shaft 21. The upper end of the torsion spring 29 is locked by a unit casing 30 integral with the main body casing 11. The lower end of the torsion spring 29 is connected to the arm 2 of the dog body 22.
2a. And this torsion spring 29
Thus, a force for returning the reinforcing bar bending roll 14 that has swung around the reinforcing bar receiving sleeve 15 to the original position is applied. The unit casing 30 includes a bolt 3
1 and fixed to the main body casing 11 in a state of being suspended from the back surface of the upper surface plate 11a, and an electric motor 32 is attached to a central portion thereof. A first gear 34 meshes with a pinion 33 formed on the output shaft of the electric motor 32, and the first gear 34 has a drive pinion 3
The second gear 36 integral with the gear 5 meshes. The drive pinion 35 is turned ON only when the electric motor 32 rotates forward.
And is connected to a driven pinion 38 via an electromagnetic clutch 37. That is, the electromagnetic clutch 37 is rotatably mounted on the driven pinion 38 and is engaged with the driving pinion 35 by a driving plate gear 37a.
9 and a clutch plate 37b slidably mounted in the axial direction via the motor 9. When the electric motor 32 rotates in the forward direction, an exciting coil (not shown) is energized to drive the drive gear 37a.
The positive rotation force of the electric motor 32 is transmitted to the driven pinion 38 by meshing the clutch pin 37 with the clutch plate 37b. A third gear 41 integral with the interlocking pinion 40 meshes with the driven pinion 38, and the interlocking pinion 40 meshes with the large gear 19. Thereby, the positive rotation force of the electric motor 32 is transmitted to the large gear 19, and the rebar bending machine 100 is driven. As shown in FIG. 2, on the upper part of the upper surface plate 11a, there is provided a rebar receiving member 4 which receives a reaction force when the rebar is bent.
The rebar receiving member 42 is loosened by loosening the nut 44 attached to the fixing bolt 43 to release the engagement with the fixed washer 45 and then moving the elongated hole 46 as a guide. The position can be adjusted in accordance with the diameter of the. The pinion 33 of the electric motor 32 also has
The fourth gear 50 meshes with the fourth gear 50.
Fifth coupling connected to drive shaft 51 via one-way clutch 52
The gear 53 is engaged. The one-way clutch 52 transmits the rotational force of the fifth gear 53 to the drive shaft 51 only when the electric motor 32 rotates in the reverse direction. An eccentric cam 5 is provided at the upper end of the drive shaft 51.
The pump mechanism 55 is driven by the rotation of the eccentric cam 54, and the oil in the oil tank 56 is opened and closed by the on-off valve 57.
Through an oil passage 58. Oil passage 5
The oil pumped to 8 is further fed to the cylinder chamber 60 via a pressure oil feed pipe 59. The cylinder chamber 60 is formed in a casing 61. A piston flange 62 is slidably disposed in the cylinder chamber 60. A piston rod 63 is provided on the front surface of the piston flange 62. Are provided integrally. The piston rod 63 penetrates through the front part 61a of the casing 61 and protrudes out of the casing 61, and a cutter blade 64 is attached to a tip of the piston rod 63. The front part 61a has a jaw part 6 at the lower front.
A fixed blade 66 facing the cutter blade 64 is attached to the front end of the jaw 65. In the piston rod 63, a return valve 67 is provided.
When the forward movement (leftward movement in FIG. 1) of the piston flange 62 is performed for a predetermined distance, the piston flange 62 comes into contact with the valve plate 68 attached to the piston flange 62 and floats, and pressurized oil is transferred to the oil tank 56 via the pressure oil return pipe 69. I miss it to the side. On the front side of the piston flange 62, a return spring 70 is interposed between the piston flange 62 and the casing 61.
1 (rightward movement in FIG. 1). In FIG. 2, reference numeral 71 denotes a bar for receiving the rear end of the reinforcing bar when cutting the reinforcing bar, reference numeral 72 denotes a power switch, reference numeral 73 denotes a main switch for starting operation, and reference numeral 7 denotes a main switch.
Reference numeral 4 denotes a toggle switch for switching between bending and cutting of a reinforcing bar, and reference numeral 75 denotes an outlet for a foot switch, which enables switching with a foot instead of the main switch 73. Next, the operation of the present embodiment will be described.
First, when using the reinforcing bar bending machine 100, after turning on the power switch 72, the toggle switch 74 is switched to the bending side. Then, the excitation coil of the electromagnetic clutch 37 is energized, and the drive plate gear 37a and the clutch plate 37
and the electric motor 32 is switched to the forward rotation side. In this state, when the main switch 73 is turned on, the electric motor 32 rotates forward, and the forward rotation force is generated by the pinion 33, the first gear 34, the second gear 36, and the drive pinion 3.
5, electromagnetic clutch 37, driven pinion 38, third gear 4
1, and transmitted to the large gear 19 via the interlocking pinion 40, and the large gear 19 is rotationally driven. When the large gear 19 rotates, the bearing block 1
8 rotates, and a roll shaft 12 attached to one end thereof
And the reinforcing bar bending roll 14 pivotally moves around the reinforcing bar receiving sleeve 15 along the elongated hole 16. For this reason, the reinforcing bar inserted between the reinforcing bar receiving sleeve 15 and the reinforcing bar bending roll 14 is bent around the reinforcing bar receiving sleeve 15. At this time, the other end of the rebar is supported by the rebar receiver 42, and the stationary state on the main body casing 11 is maintained. When the rebar is bent at a predetermined angle, the dog 22b comes into contact with the limit switch 24 and the electric motor 3
2 stops. Here, when the bearing block 18 turns during bending of the reinforcing bar, the rotating shaft 21 and the dog body 22 integrated therewith are also driven to rotate, and the rotation causes the torsion spring 29 to be twisted. Accordingly, when the operation of the electric motor 32 is stopped, the dog body 22, the rotating shaft 21, the bearing block 1
8 and the rebar bending roll 14 are pulled back, and the rebar bending roll 14 returns to its original position. When the electric motor 32 rotates forward, the fourth gear 50 meshing with the pinion 33 and the fifth gear 53 meshing therewith also rotate. , The drive shaft 51 does not rotate, and the rebar processing machine 200 does not operate. Next, when using the rebar processing machine 200, after turning on the power switch 72, the toggle switch 74 is switched to the cutting side. Then, the energization to the exciting coil of the electromagnetic clutch 37 is cut off, the engagement between the drive plate gear 37a and the clutch plate 37b is released, and the electric motor 32 is switched to the reverse rotation side. When the main switch 73 is turned on in this state, the electric motor 32 rotates in the reverse direction, and the reverse rotation force is applied to the drive shaft via the pinion 33, the fourth gear 50, the fifth gear 53, and the one-way clutch 52. 51 to drive shaft 5
1 and the eccentric cam 54 integrated therewith are rotationally driven. When the eccentric cam 54 rotates, the pump mechanism 5
5 is driven to generate pressure oil, and the pressure oil is sent to the cylinder chamber 60 via the on-off valve 57, the oil passage 58, and the pressure oil feed pipe 59. Thereby, the piston flange 62, the piston rod 63 and the cutter blade 6
4 moves to the left in FIG. 1, and the rebar is cut between the fixed blade 66 and the cutter blade 64. When the cutting of the rebar is completed, the return valve 67 abuts on the valve plate 68 and opens, and the pressure oil in the cylinder chamber 60 is returned to the oil tank 56 via the pressure oil return pipe 69. Therefore, the piston flange 62
Is pushed back to the right in FIG. 1 by the spring force of the return spring 70, and the cutter blade 64 returns to the original position. When the electric motor 32 rotates in the reverse direction, the first gear 34 meshing with the pinion 33, the second gear 36 meshing with the first gear 34, the drive pinion 33 integrated with the second gear 36, and The driving plate gear 37a meshed with the driving pinion 33 also rotates, but the driven pinion 38 does not rotate because the driving plate gear 37a and the clutch plate 37b do not mesh with each other. Does not work. As described above, since the electric motor 32 is shared by the rebar bending machine 100 and the rebar processing machine 200, the size and weight of the entire apparatus can be reduced. Moreover, the rebar bending machine 100 and the rebar processing machine 200 can be selected only by switching the toggle switch 74, so that the operability of the apparatus can be improved. In the above embodiment, the case where the electromagnetic clutch 37 is incorporated in the power transmission system of the rebar bending machine 100 and the one-way clutch 52 is incorporated in the power transmission system of the rebar processing machine 200 has been described. The one-way clutch 52 and the one-way clutch 52 may be incorporated in reverse, or only the electromagnetic clutch 37 or only the one-way clutch 52 may be incorporated in both. Further, in the above-described embodiment, the case where a rebar cutter is used as the rebar processing machine 200 has been described. The boring process may be performed. In the present invention, the normal rotation and the reverse rotation mean rotation directions opposite to one of the rotation directions. The rebar bending machine uses the reverse rotation force of the motor, and the metal member processing machine uses the normal rotation force of the motor. May be used for driving. As described above, according to the present invention, since the motor of the reinforcing bar bending machine and the motor of the metal member processing machine are shared, the size and weight of the apparatus can be reduced. . Further, since the rebar bending machine and the metal member processing machine can be selected only by switching the changeover switch, the operability can be improved.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a cross-sectional view showing a combined rebar bending apparatus according to one embodiment of the present invention. FIG. 2 is an external configuration diagram of the apparatus of FIG. DESCRIPTION OF SYMBOLS 10 Composite-type reinforcing bar bending device 11 Main body casing 12 Roll shaft 13 Sleeve shaft 14 Reinforcing bar roll 15 Reinforcing bar receiving sleeve 16 Slot 18 Bearing block 19 Large gear 21 Rotating shaft 22 Dog body 23 Micro switch mount 24 Micro Switch 29 Torsion spring 32 Electric motor 33 Pinion 34 First gear 35 Drive pinion 36 Second gear 37 Electromagnetic clutch 37a Drive plate gear 37b Clutch plate 38 Follower pinion 39 Key 40 Interlocking pinion 41 Third gear 42 Rebar receiver 50 Fourth gear 51 drive shaft 52 one-way clutch 53 fifth gear 54 eccentric cam 55 pump mechanism 56 oil tank 60 cylinder chamber 62 piston flange 63 piston rod 64 cutter blade 66 fixed blade 67 return valve 70 return spring 72 power switch 73 Main switch 74 Toggle switch 100 Rebar bending machine 200 Rebar processing machine

Claims (1)

(57) [Claims 1] A rebar bending machine provided on an upper surface of a main body casing and for turning a rebar bending roll around a rebar receiving sleeve to bend a rebar, and a side face of the main body casing. A metal member processing machine that reciprocates the movable body with respect to the fixed body and performs processing such as drilling a cutting hole on the metal member. A motor; a forward-rotation force transmitting means for transmitting the rebar bending roll to the rebar bending machine via a clutch mechanism for transmitting only the forward rotation force of the motor; and a clutch mechanism for transmitting only the reverse rotation force of the motor. A reverse rotation force transmitting means for transmitting to the metal member processing machine via the first member and driving the movable body; and a changeover switch for changing a rotation direction of the motor. Composite iron folding apparatus characterized.