JPH0360989B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a binding machine using metal wire.

Traditionally, in the work of tying reinforcing bars in the construction of reinforced concrete structures or assembling logs for work scaffolding at construction sites, workers manually bound reinforcing bars or logs using metal wires such as wire. As a result, work efficiency was extremely poor, and delays in reinforcing steel assembly work caused delays in all other construction work. Furthermore, since most of these tasks involve using the hands and in unnatural postures, workers sometimes feel pain, especially when tying reinforcing bars, due to the enormous amount of work involved.

In order to improve the above-mentioned problems, the applicant has developed a motor-driven system that automatically performs a series of binding operations, from winding the binding wire around bars such as reinforcing bars or logs to twisting and tightening the binding wire. A patent application has already been filed for a portable tying machine that can be used in a variety of ways.
084214 Publication) However, in the binding machine of this existing application, when the claws that were gripping the binding wire are released after twisting the binding wire to secure the bar, the binding wire twisting part In addition to the problem that the claws themselves are tied down, making it difficult to release them, the position of the claws for gripping wire binding becomes unstable when a series of binding operations are sewn, making it impossible to grip the next wire binding. There were times when the device would stop, and each time it would stop, the claws would have to be manually redirected to a predetermined position, which was a hassle.

The present invention improves the above-mentioned problems of the conventional manual tying work, while solving the above-mentioned problems of the tying machine related to the present applicant's previous application (Japanese Patent Application No. 161210/1982). In view of this, the gripping member that grips the bundled wire should be able to smoothly detach from the bundled wire twisting part when the binding work is completed, and the gripping member must be at a predetermined position where it can always grip the next bundled wire at the end of the series of binding operations. The object of the present invention is to provide a tying machine using a metal wire that is made to stand still at a certain angle.

The binding machine using the metal wire of the present invention is a binding wire winding machine that winds the binding wire in an arc shape by inserting the binding wire into a binding wire guide member whose tip portion is curved in a semicircular arc shape. a binding wire feeding device for feeding the binding wire from an inlet of the binding wire guide member through the binding wire guide member to the distal end side thereof; a binding wire gripping device for gripping the binding wire arc portion; a binding wire cutting device for separating the binding wire arc portion from the binding wire; and a binding wire cutting device for separating the binding wire arc portion from the binding wire; a binding wire twisting device that acts to twist the binding wire arc portion by rotating the binding wire gripping device;
a twisting device reversing device for reversely rotating the binding wire twisting device in order to separate the binding wire gripping device from the binding wire twisting portion after twisting the binding wire arc portion by the binding wire twisting device; and the binding wire gripping device. a gripping device fixed position stationary device that functions to stop the device in a position where it can grasp the binding wire arc portion to be wound next and to stop the operation of the twisting device reversing device, further comprising the binding wire feeding device; Binding wire gripping device, binding wire cutting device, binding wire twisting device,
This invention is characterized in that the twisting device reversing device and the gripping device fixed position fixing device are sequentially and automatically operated by a drive device.

Hereinafter, the binding machine using the metal wire of the present invention will be explained with reference to the embodiment shown in Figs. 1 to 17. The binding machine of the embodiment shown in Figs. Using wire (binding wire) 10, as shown in FIGS. 16 and 17, bar material 9 such as reinforcing bar
9, 99, and its external shape is pistol-shaped.The operator grasps the grip part 2A provided at the bottom of the cover case 2, and operates the activation switch 3 provided on the grip part 2A. By pressing the button, each device described in detail below is activated to automatically perform a series of binding operations.

The overall configuration of this binding machine 1 is such that the binding wire 10 is inserted into a binding wire guide member 11 having a tip portion 11a curved in a semicircular arc shape.
a binding wire winding device A that winds 0 in an arc shape;
The binding wire 10 is inserted into the entrance portion 11b of the binding wire guide member 11.
A binding wire feeding device B for feeding the binding wire from the inside of the binding wire guide member 11 to the tip end 11a side thereof.
, a binding wire gripping device C for gripping the binding wire arc portion 10a wound in an arc shape through the binding wire guide member 11, and the binding wire arc portion 10.
a binding wire cutting device D for cutting the binding wire 10 from the binding wire 10, and the binding wire circular arc portion 10a by rotating the binding wire gripping device C while holding the binding wire arc portion 10a with the binding wire gripping device C. a binding wire twisting device E for twisting the binding wire, and a binding wire twisting device E for separating the binding wire gripping device C from the binding wire twisting portion 10b after the binding wire twisting device E twists the binding wire arc portion. The twisting device reversing device F for reversely rotating the wire and the binding wire gripping device C are made to stand still in a position where they can grasp the binding wire arc portion 10a to be wound next, and the operation of the twisting device reversing device F is stopped. A gripping device fixed position fixing device G that acts, and further comprising a wire binding device B, a wire binding device C, a wire binding cutting device D, a wire binding twisting device E, a twisting device reversing device F, and a gripping device fixed position. The stationary device G is configured to be automatically operated sequentially by a drive device H.

This binding machine 1 includes a mobile case 5 containing a multi-wound winding 6 and a motor drive battery 7, a flexible binding cable 8 and an electric wire 9.
connected via. This portable case 5 is fixed to the worker's waist by a waist band 97, and the winding 6 and battery 7 inside the portable case 5 are replaceable. Further, this carrying case 5 is provided with an adapter 98 for switching the AC power source to DC power when using it.

Next, each device of the tying machine 1 will be explained in order. The drive device H uses a small DC motor 4 built in the grip part 2A as a power source, and uses its rotational force to feed the tying wire feed device B and the tying wire twisting device. By selectively transmitting the torque to E via the drive switching clutch 12, the rotational force is transmitted to the cam device J, which will be described later, throughout the rotation of the motor to perform a cam action. That is, the rotational force of the motor 4 is pivoted in the longitudinal direction of the binding machine 1 (arrow W-X in FIG. 6) through the motor shaft side head gear 21 and the head gear 22 meshing with the head gear 21. At the same time, the output shaft 23 is rotated, and the output shaft 23 is pivoted in the lateral direction (Y-Z direction in FIG. 3) via the worm gear 24 attached to the output shaft 23 and the worm wheel 25 meshing with the worm gear 24. The intermediate shaft 26 that is currently being rotated is decelerated, and further the intermediate shaft 2
The three cam plates 6, which will be described later, are
It acts to rotate the camshaft 30 to which 0, 70, and 80 are attached at a low speed. Note that while the motor 4 is rotating, the output shaft 23, intermediate shaft 26, and camshaft 30
is designed to be rotated continuously.

The output shaft 23 has the output shaft side cap gear 22
The cap gear part 13a and the clutch part 1 are located close to each other.
3b is integrally formed with the clutch-cum-shape gear 1.
3, a clutch spur gear 14 formed integrally with a spur gear part 14a and a clutch part 14b is fitted near the other shaft end so that the clutch parts 13b and 14b face each other. . or,
The output shaft 23 is provided with the clutch-cum-shape gear 13.
A drive switching clutch 12 having clutch portions 12a and 12b which can be connected to and disengaged from the respective clutch portions 13b and 14b between the spur gear 14 and the clutch spur gear 14 does not rotate with respect to the output shaft 23 and rotates in the axial direction ( It is slidably inserted in the direction of arrow W-X).
The drive switching clutch 12 is spline-fitted to the output shaft 23.

The clutch head gear 13 is for driving the bundle wire feeder B by meshing with a wire bundle feeder driving cap gear 42, which will be described later, and is loosely fitted to the output shaft 23 so as to be freely rotatable. On the other hand, movement in the axial direction is restricted by, for example, a snap spring (not shown).

On the other hand, the clutch spur gear 14 is for driving the bundled wire twisting device E by meshing with a spur gear 52 for driving a bundled wire twisting device, which will be described later. It is loosely fitted to the other end so that it can rotate freely, but its movement in the axial direction is restricted.

A holding member 73 that is moved in the axial direction (arrow W-X direction) by a second cam plate 70, which will be described later, is loosely fitted into the body of the drive switching clutch 12. When the drive switching clutch 12 is moved in the axial direction, the drive switching clutch 12 is selectively connected to a clutch head gear 13 or a clutch spur gear 14. That is, this holding member 73 is adapted to be moved forward and backward in two stages (three positions) in the axial direction by the action of a second cam plate 70, which will be described later, and the holding member 73 is in the most retracted position (see FIG. 6). When the drive switching clutch 12 is in the position (position), the drive switching clutch 12 connects with the clutch-cum-shape gear 13 to drive the binding wire feeding device B, and the holding member 73
When is in the most advanced position (the position shown in FIG. 8), the drive switching clutch 12 connects with the clutch spur gear 14 to drive the cable twisting device E, and the holding member 73 is in the intermediate position (the position shown in FIG. 7). ), the drive switching clutch 12 is not connected to either side and freely rotates together with the output shaft 23.

The guide tube 11 of the wire binding winding device A is located at the front, at a position slightly closer to the entrance portion 11b in the middle portion thereof.
It is later divided into two parts, and a predetermined interval N ( (Fig. 6).

The binding wire feeding device B is for feeding the binding wire 10 into the guide tube 11, and specifically, it is for feeding the binding wire 10 into the guide tube 11. Specifically, the binding wire feeding device B is for feeding the binding wire 10 into the guide tube 11. By rotating the driving roller 46 in the direction of arrow N (FIG. 3) in the pressed state, the binding wire 10 is moved forward (in the direction of arrow W).
I am trying to send it towards. The rollers 46 and 47 are located at a position where they can sandwich the binding wire 10 passing through the guide tube 11 from both sides within the interval N formed between the front and rear divided guide tubes on the upper surface of the cover case 2. is set up. As shown in FIG. 5, the drive-side roller 46 is fixed to the upper end of a rotating shaft 44 that is pivotally supported so as to vertically pass through the upper plate of the cover case 2. As shown in FIG. A spur gear 45 is attached to the lower part of the rotating shaft 44, and the spur gear 45 is connected to the clutch and cap gear 13.
It is meshed with a spur gear 43 attached to the shaft 41 of a hat gear 42 that meshes with the shaft 41 of the head gear 42. When the drive switching clutch 12 is connected to the clutch head gear 13, the rotating shaft 44 is rotated via the clutch head gear 13, the head gear 42, and both spur gears 43 and 45, thereby driving the drive. The side rollers 46 are now rotated. The driven roller 47 can be finely adjusted in the direction of approaching or separating from the driving roller 46 depending on the wire diameter of the binding wire used. That is, the bracket 48 supporting the driven roller 47 has one end 48a pivoted to the upper surface of the cover case 2 with a pin 90 or the like, and the other end 48b fixed to the driving roller 46 side by an adjustment screw 49. It is designed so that it can be moved close to or separated from the object. A spring 50 is interposed between the adjustment screw 49 and the other end 48b of the bracket 48, and by pressing the other end 48b of the bracket 48 in the direction of arrow Y (FIG. 3), the driven side The roller 47 is urged toward the driving roller 46 side. In this way, the binding wire 10 is pinched between both rollers 46 and 47, so the binding wire 1
0 can be sent out smoothly without slipping on both rollers 46 and 47. Note that if the outer peripheral surfaces of both rollers 46 and 47 are knurled, the binding wire 10 can be sent out more reliably.
In addition, in this embodiment, the wire binding device B is 1
The circular arc portion 10a of the binding wire 10 is
It is designed to send out only three rolls.

The binding wire holding device C holds a binding wire arc portion 1 which is wound in an arc shape by the binding wire winding device A.
A pipe-shaped shaft member 31 to which an L-shaped claw member 32 is attached for hooking 0a, and a cylindrical chuck that is fitted on the outside of the shaft member 31 and acts to open and close the claw member 32. It is configured to include a member 33. The shaft member 31 is pivotally supported by a bearing 16 provided on the cover case 2 side so as to be rotatable and movable in the front-rear direction (arrow W-X direction). Also, a third cam plate 8, which will be described later, is provided at the base end of this shaft member 31.
A holding member 83 is attached that can be moved back and forth in the front and back directions by a shaft member 83, and by moving the holding member 83 back and forth, the shaft member 31 can be moved back and forth. A notch 34 of an appropriate depth is provided at the tip of the shaft member 31. The claw member 32 is attached with its base 32a side pivoted to the tip of the shaft member 31 with a pin 35, so that the claw 32b on the tip side of the claw member can rotate in an arc at the tip of the shaft member. . The pawl member 32 is biased by a spring 36 (see FIG. 8) so that the tip of the pawl member is inserted into a notch 34 at the tip of the shaft member. Note that when the claw member 32 has its tip end inserted into the notch 34, the claw member 32
As shown in FIGS. 2 and 3, the claw 32b is held stationary in such a position that it protrudes forward (in the direction of arrow W). The chuck member 33 is the shaft member 31
The chuck member 33 and the shaft member 31 are spline-fitted on the outside thereof, and the chuck member 33 and the shaft member 31 do not rotate relative to each other and can slide relative to each other only in the axial direction. A holding member 63 is attached to the proximal end of the chuck member 33, and is moved forward and backward by a first cam plate 60, which will be described later. Chuck member 33
can be moved forward and backward along the outer surface of the shaft member 1. Further, the tip of the chuck member 33 is provided with the chuck member 3 as shown in FIG. 2 or 6.
3. A notch 34 formed in the tip of the shaft member 31 in a state where the tip and the tip of the shaft member 31 are almost aligned.
A notch 37 is formed which is almost completely polymerized.
Therefore, when the tip of the chuck member 33 and the tip of the shaft member 31 are substantially aligned, the claw member 32 is biased by the spring 36 and the tip of the claw member is aligned with both notches 3.
4, 37, so that the claw 32b of the claw member 32 maintains the open state. Note that the claw member 32 is
The claw 32b portion of the claw member 32 has such a length that it protrudes considerably outward from the outer peripheral surface of the chuck member 33 when the tip of the claw member is fitted into the notches 34, 37. This chuck member 33 functions as follows. That is, when the chuck member 33 is moved forward (in the direction of arrow W) relative to the shaft member 31, the rear surface portion of the claw member 32 is pressed against the inner edge 37a of the notch 37 on the chuck member 33 side (FIG. 8), and the claw The member 32 is rotated forward in an arc against the spring 36, and the claw 32b and the end surface of the chuck member 33 act to firmly grip the wire of the binding wire arc portion 10a. In addition, the chuck member 33
When the chuck member 33 retreats with respect to the shaft member 31, the pressing force of the chuck member 33 against the claw member 32 is released, and the claw member 32 is returned to its original position by the action of the spring 36 (the tip side of the claw member is inserted into both notches 34, 37). position).

At the binding wire cutting position D, a cutting member 38 having a hole 39 for inserting the binding wire at the exit portion of the arcuate tip 11a of the guide tube 11 and communicating with the binding wire passage 20 in the arcuate tip 10a is attached to the bracket 40. Therefore, the cutting member 38 is pivotally mounted, and includes an arcuate lever 91 and an operating rod 92 for rotating the cutting member 38. The distal end of the operating rod 92 and the proximal end of the arcuate lever 91 are pivotally connected by a pin 93, and the distal end of the arcuate lever 91 is fixed to the cutting member 38 by welding or the like. The operating rod 92 is supported by the upper part of the cover case 2 so as to be movable back and forth, and is pushed forward (in the direction of arrow W) by a push rod 81 that is moved forward and backward by a third cam plate 80, which will be described later. It's summery. That is, the third
A pressing member 89 (FIG. 4) is fixed to the pushing rod 81 on the cam plate 80 side, and the pressing member 89 presses the base end 92a of the operating rod 92.
Note that this pressing member 89 and the base end 92a of the operating rod 92
are spaced apart by a predetermined distance when the push rod 81 is at its most retracted position, and as shown in FIG. I try to do that. When the operating rod 92 is moved forward, the base end side (upper side) of the arcuate lever 91 is moved forward and the cutting member 38 is rotated (Fig. 10), and at this time the hole 39 in the cutting member 38 is guided. It is not in communication with the wire binding passage 20 in the tube tip portion 1a, and the binding wire can be cut at the outlet of the wire binding passage 20 by the shearing action at that time. Further, this operating rod 92 is urged in the backward direction (arrow X direction) by a spring 94, and the third cam plate 8
When the pushing force of the push rod 81 on the 0 side is not applied, the push rod 81 is moved back to a predetermined position (the position shown in FIG. 4) and is kept stationary. Note that when there is no pressing force from the push rod 81 on the operating rod 92, the hole 39 of the cutting member 38 is inserted into the guide tube tip 11.
It communicates with the cable binding passage 20 in a.

The binding wire twisting device E is for twisting the binding wire arc portion 10c by rotating the binding wire gripping device C in a state where the binding wire arc portion 10a is gripped by the binding wire gripping device C, A spur gear 14 that also serves as a clutch is loosely fitted onto the output shaft 23.
The first shaft 51 is rotated by meshing the spur gear 52 with the second shaft 55, and the rotational force of the first shaft 51 is transmitted to the shaft member 31 of the binding wire gripping device C via the second shaft 55. There is. The first shaft 51 and the second shaft 55 are each installed on the same axis as the shaft member 31 of the wire binding device 3, and the first shaft 51 is supported by the bearing 17, and the second shaft 55 is They are each supported by a bearing 18 on the front side of the first shaft 51 . Further, the first shaft 51 is supported so as not to be movable in the front-rear direction, and the second shaft 55 is supported so as to be movable in the front-rear direction. This first axis 51 and second axis 5
5, a clutch portion 53 formed at the distal end of the first shaft 51 and a clutch portion 56 formed at the base end of the second shaft 55 are connected to each other so that they rotate together. The second shaft 55 is a spring 5
7 is biased toward the first shaft 51, and normally the clutch portions 53 and 56 are connected to each other by the biasing force of the spring 57. When the load on the second shaft 55 side exceeds a predetermined range, such as when the twisting operation is completed, the clutch portions 53 and 56 mutually slip, preventing the second shaft 55 from rotating. The tip side of the second shaft 55 is a spline shaft 58, and the spline shaft 58 is connected to the wire holding device C.
The shaft member 31 is fitted into a spline shaft hole in the shaft member 31. Therefore, the shaft member 31 of the wire binding device C is the second
It is capable of sliding in the front and rear directions without rotating relative to the shaft 55.

The cam device J includes a first cam device J that functions to push the chuck member 33 forward on one end side of the cam shaft 30.
A cam plate 60 and a second cam plate 70 are provided which function to switch and operate the drive switching clutch 12, and the shaft member 31 and the operating rod 92 of the binding wire cutting device D are pushed to the other end of the cam shaft 30. The structure includes a third cam plate 80 that functions to release the air. The base ends of push rods 61, 71, 81 are in contact with the first, second, and third cam plates 60, 70, 80, respectively. Also, each push rod 61, 71, 81
are urged toward each cam plate by springs 62, 72, and 82, respectively. In addition, each push rod 6
1, 71, and 81 are respectively pivotally supported at appropriate positions on the cover case 2, and are movable only in the respective axial directions.

A holding member 63 holding the chuck member 33 is fixed to the tip of the push rod 61 on the first cam plate 60 side. A holding member 73 holding the drive switching clutch 12 is fixed to the intermediate portion of the push rod 71 on the second cam plate 70 side. Third cam plate 80
A holding member 83 holding the shaft member 31 is fixed to the tip of the side push rod 81. This first
The third to third cam plates 60, 70, and 80 act to operate each device and member during a surgical procedure as described below.

The torsion device reversing device F is shown in FIGS. 11 and 12.
As shown in the figure, when the binding wire twisting device E is operated to twist up the binding wire arc portion and secure each bar 99, 99, the claw member 2 is moved from the twisted portion 10b of the binding wire
This twisting device reversing device F reverses the binding wire twisting device E to make it easier to remove the output shaft 23, as shown in FIGS. 13 and 14.
An intermediate spur gear 65 is interposed between a spur gear 64 fixed near the tip of the wire and a spur gear 66 fixed to the first shaft 51 on the side of the cable twisting device E, and is capable of meshing with both spur gears 64 and 66 at the same time. As a result, the cable twisting device E is configured to rotate in the direction opposite to the cable twisting direction (direction of arrow L in FIG. 11) (direction of arrow R in FIGS. 11 and 12). The intermediate spur gear 65 is attached to one arm piece 67a of a seesaw member 67, which has arm pieces 67a and 67b that are loosely fitted to the tip of the output shaft 23 and extend in two directions from the output shaft 23. There is. This intermediate spur gear 65 is the output shaft side spur gear 64.
It is installed so that it always meshes with the Further, the intermediate spur gear 65 is in the state of the first shaft side spur gear 6 when the seesaw member 67 is moving in the direction of arrow P (left rotation direction in FIG. 13) as shown in FIG.
6 and does not act on the binding wire twisting device E side, on the contrary, the seesaw member 67 rotates in the direction of arrow Q (clockwise rotation direction in FIG. 14) as shown in FIG.
In the state where it is moving to the side, the first shaft side spur gear 66
The wire twisting device E can be reversed by meshing with the wire twisting device E. This seesaw member 67 is constantly biased in the direction of arrow P (FIG. 13) by pulling the arm piece 67b on the side opposite to the intermediate spur gear 65 upwardly with a spring 68, and is also provided with a pressing device described below. K allows it to be pressed in the direction of arrow Q (FIG. 14). This pressing device K includes a cam member 101 pivotally connected to a push rod 61 on the first cam plate 60 side by a pin 106, and a cam member 101 mounted below the push rod 61 on the first cam plate 60 side.
A shaft 102 parallel to and rotatably supported
, an upward lever 103 extending upward from the shaft 102 and swingable in the arrow Y-Z direction (FIG. 3); and an upward lever 103 extending downward from the shaft 102 and swinging in the direction of arrow Y-Z (FIG. 3); 67 is provided with a downward lever 104 that comes into contact with the arm piece 67b on the side opposite to the intermediate spur gear. The cam member 101 is connected to an upward lever 103
The cam member 101 is rotatably supported by the push rod 61 only in the direction of the arrow S (FIG. 3). When the push rod 61 moves forward, even if the cam member 101 collides with the upward lever 103, the cam member 101 itself rotates in the direction of arrow S and does not move the upward lever 103. When the push rod 61 moves backward, the cam surface 101a of the cam member 101 presses the upward lever 103 to move it in the direction of arrow Y. Note that this cam member 101 is biased by a spring 107 in the opposite direction of arrow S, so that even if it is rotated in the direction of arrow S when the push rod 61 moves forward, it will not come into contact with the upward lever 103. It is beginning to be forced to return to its original position. The upper part of the upward lever 103 is guided by a guide groove 111 formed in a plate member 110 fixed to the cover case 2, and moves from a position on the arrow Z side shown in FIG. 13 to an arrow Y side shown in FIG. It is designed to be able to swing within a range of positions. When the upward lever 103 is swung, it acts to rotate the shaft 102 by a predetermined angle. The downward lever 104 is an outer arm piece (an anti-spur gear side arm piece) of the seesaw member 67 in the range in which the upward lever 103 moves from the arrow Z side position shown in FIG. 13 to the arrow Y side position shown in FIG. 67b, and the downward lever 104 is attached so that the upward lever 103 is on the arrow Z side (the 13th
), the intermediate spur gear 65 is spaced apart from the first shaft side spur gear 66, and when the upward lever 103 is located on the arrow Y side (FIG. 14), the intermediate spur gear 65 is moved away from the first shaft side spur gear 66. First shaft side spur gear 6
It acts to mesh with 6. intermediate spur gear 65
is meshing with the first shaft side spur gear 66,
The rotational force from the output shaft 23 is transmitted to the output shaft side spur gear 64,
The information is transmitted to the wire binding twisting device E via the intermediate spur gear 65 and the first shaft side spur gear 66.
is rotated in the opposite direction (direction of arrow R) to the twisting direction of the binding wire (direction of arrow L). The upper part of the upward lever 103 is urged forward by a spring 105 to prevent the upward lever 103 from inadvertently moving toward the arrow Y side when the first cam plate side push rod 61 moves forward. In addition, when releasing the reverse drive state of the bundled wire twisting device E,
This is carried out using the gripping device fixed position fixing device G, which will be described next.

The gripping device fixed position stationary device G moves the binding wire arc portion 1 around which the claw member 32 of the binding wire gripping device C is next wound.
0a at a position where it can be grasped, and also functions to release the reverse drive state of the binding wire twisting device E, and the grasping device fixed position static device G is
A contact member 120 is attached to the tip of the shaft 102 on the side of the twisting device reversing device F side and protrudes toward the binding wire gripping device C side. This contact member 120
is positioned at a position corresponding to the claw 32b of the claw member 32 when the wire binding gripping device C is retracted the most, and the twisting device reversing device F is operated to cause the claw 32b of the claw member 32 to be wound next. Binding wire arc part 1
When the claw 32b is rotated to a position where it can grip the abutting member 120, the claw 32b abuts against the lower surface of the abutting member 120 and pushes up the abutting member 120, thereby causing the shaft 102 to rotate in the clockwise rotation direction in FIG. This acts to stop the operation of the twisting device reversing device F. Therefore, the rotation of the binding wire gripping device C is stopped when the operation of the twisting device reversing device F is stopped, and the claws 32b of the claw members 32 also come to rest at a predetermined position.

The binding machine 1 can be configured such that the motor 4 is stopped when the gripping device fixed position fixing device G is activated and the twisting device reversing device F is stopped. For example, a motor switch may be provided at a suitable location in the binding machine 1 in addition to the start switch 3, and the contacts of the motor switch will be opened when the gripping device fixed position rest position G is activated and the twisting device reversing device F is stopped. It is better to do this.

Next, the method of using the illustrated bundling machine 1 and its operation will be explained with reference to the operation diagram of each device shown in FIG. The tying machine is set so that the reinforcing bars 99, 99 to be tied are placed within the inner space formed by the semicircular arc-shaped tip 11a of the guide tube 11, as shown in FIG. In this state, the drive switching clutch 12 is connected to the clutch/shape gear 13 as shown in FIG. Thus, the binding wire 10 is fed into the guide tube 11 and the camshaft 30 is rotated. At this time, guide tube 1
The binding wire arc portion 10a wound in an arc shape and sent out from the tip portion 11a of the wire wraps around the outside of the reinforcing bars 99, 99 in a distant manner. When this enclosing work is nearing its end, the shaft member 31 is first advanced by the third cam plate 80 as shown in FIG. 9, and after a short delay, the chuck member 33 is advanced by the first cam plate 60. Approximately in synchronization with the advancement of the chuck member 33, the drive switching clutch 12 is switched to the neutral position by the second cam plate 70 as shown in FIG. 7, and the wire binding device B is stopped.
Near the end of the forward movement of the chuck member 33, the claw member 32 is closed by the chuck member 33, and as shown in FIG.
2 and the tip of the chuck member 33.
Incidentally, when the shaft member 31 moves forward, the operating rod 92 of the wire binding cutting device D also moves forward, and the wire binding is cut almost in synchronization with the wire binding device C gripping the wire binding arc portion 10a. Next, as shown in FIG. 8, the drive switching clutch 12 is switched to the clutch spur gear 14 side, the wire twisting device E is activated, and the wire gripping device C is rotated in the direction of the arrow L, so that the wire arc portion 10a is twisted (FIG. 11). Incidentally, when the wire binding arc portion 10a is sufficiently twisted and the load becomes large, the clutch portions 53 and 56 between the first shaft 51 and the second shaft 55 of the wire binding twisting device E slip and are no longer twisted. When the torsion action has been performed for a predetermined period of time, the drive switching clutch 12 is switched to neutral again and the torsion action is stopped, and immediately after that, the chuck member 33
moves backward, the pressing force on the claw member 32 is released, and the claw member 32 can be opened. By the way, when the binding wire twisting portion 10b firmly ties the claw 32b of the claw member 32, the claw member 32 does not open easily even if the spring 36 acts in the direction of opening the claw member.
Therefore, when the chuck member is retracted, i.e., the first
When the push rod 61 on the cam plate 60 side retreats, the cam member 101 operates the upward lever 103, the twisting device reversing device F is activated, and the binding wire twisting device E is reversed (in the direction of arrow R). Then, the lashing portion of the binding wire twisting portion 10b that lashes the claw 32b of the claw member 32 loosens, and the spring 36
This action ensures that the claw member 32 is opened. Subsequently, the binding wire twisting device E is reversed, so that the claw 32b of the claw member is aligned with the chain line 32.
b' (FIG. 14), the contact member 120 is pushed up by colliding with the lower surface of the contact member 120, and the torsion device reversing device F is stopped, and the claw 3 of the claw member
2b is stopped at a predetermined position so as to be able to grasp the binding wire arc portion 10a to be wound next. At this time, the motor 4 is immediately stopped and the entire reinforcing bar binding process is completed.

Incidentally, the binding device 10 can sequentially and continuously take out the windings 6 in the carrying case 5, and when the windings 6 are used up, new windings 6 can be replenished. In addition, at sites where commercial power can be used, commercial power can be used simply by connecting the outlet.

Next, to explain the effects of the present invention, when the tying machine of the present invention is used, a series of tying operations from winding the tying wire around the object to be bound, such as reinforcing bars, to twisting and tightening the wound tying wire, can be performed. The tying machine of the present invention can perform the work fully automatically, increasing the efficiency of the tying work and greatly reducing worker fatigue. Since the twisting device E can be rotated in the opposite direction, the wire binding device C can be rotated in the opposite direction.
0b, and since the gripping device fixed position fixing device G is provided, the binding wire gripping device C is always attached to the next binding wire arc portion 10a to be wound.
This has the effect of making it possible to stand still in a position where it can be grasped, making the next tying work easier.

[Brief explanation of drawings]

FIG. 1 is a front view of a mobile case connected to a binding machine according to an embodiment of the present invention, FIG. 2 is a perspective view of the binding machine of FIG. 1, and FIG. 3 is a plan view of the binding machine of FIG. Figure 4 is a view taken in the direction of the arrows in Figure 2, Figures 5 and 6 are - and - sectional views, respectively, in Figure 3, and Figures 7 to 14 are views of the actions of each device of the binding machine in Figure 1, respectively. An explanatory diagram, FIG. 15 is an explanatory diagram of the operation of each device in the binding machine of FIG. 1, and FIGS. 16 and 17 are diagrams of the state of bar binding using binding wires, respectively. DESCRIPTION OF SYMBOLS 1... Binding machine, 10... Binding wire, 10a... Binding wire arc part, 11... Binding wire guide member, 12...
Drive switching clutch, A... Wire winding device, B...
...Wire binding device, C...Wire binding device, D...Wire binding cutting device, E...Wire twisting device, F...Twisting device reversing device, G...Gripping device in fixed position, H. ...Drive device, J...Cam device.

Claims (1)

[Claims] 1. A binding wire winding device A that winds the binding wire 10 in an arc shape by inserting the binding wire 10 into the binding wire guide member 11 having a tip portion 11a curved in a semicircular arc shape, and the binding wire 10 from the entrance portion 11b of the wire binding guide member 11 to the wire binding guide member 11.
A wire binding feeding device B for feeding the wire through the inside to the tip end 11a side thereof, and the wire binding guide member 1.
a binding wire gripping device C for gripping the binding wire arc portion 10a wound in an arc shape through the binding wire 1;
A binding wire cutting device D for cutting off the binding wire arc portion 10a from the binding wire 10 and a binding wire gripping device C are rotated while the binding wire circular arc portion 10a is gripped by the binding wire gripping device C. a binding wire twisting device E that acts to twist the binding wire arc portion 10a; and a binding wire twisting device E that acts to twist the binding wire arc portion 10a; Twisting device reversing device F for reversing the binding wire twisting device E
and a gripping device fixed position resting device G that functions to stop the wire binding device C in a position where it can grip the wire binding arc portion 10a to be wound next and to stop the operation of the twisting device reversing device F. Further, the wire binding device B, the wire binding device C, the wire binding device D, the wire binding twisting device E, the twisting device reversing device F, and the gripping device fixing device G are sequentially operated by a drive device H. A binding machine using metal wire, characterized in that it operates automatically.