JPH0379243B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to a portable wire binding device.

Background of the Invention: Various automatic devices have been proposed for bundling various articles mainly using metal wires (hereinafter referred to as wires), but these are generally stationary devices. Since the wire feeding section and the binding mechanism are combined into one device, the objects to be bound must be brought to the required location of this device and bound, and therefore, Moreover, it is not possible to bind arbitrary parts.

For this reason, it is not possible to assemble the required items at any location, and bundling work is often unnecessary except for specific items.

Purpose of the invention: The present invention provides a portable wire bundle in which the wire feeding part and the binding operation part are separated, so that the binding operation part has an independent structure and can be easily held in hand, so that binding can be performed by operating an electric switch at hand. Intended for equipment.

Structure of the invention: In order to achieve the above object, the present invention includes the following:
The tying machine consists of a separately placed wire supply mechanism, a tying machine with a portable shape whose tying part is driven by a motor, and an electric control mechanism that connects and controls the two. A bundling head is attached to the front of the provided body, and inside the bundling head there is a pair of clamp mechanisms, a twisting piece located between the clamp mechanisms that rotates the required number of times, and a wire adjacent to one clamp mechanism on the wire feeding side. A binding mechanism is provided in which wire cutters are arranged in series and operated in a predetermined order by a motor via an intermittent movement mechanism, and a twisting piece is provided on the side of the binding operation part of the head. An opening is formed for the wire to enter and exit from the clamp part, and a motor is attached to the rear of the binding head, so that operations such as supplying, binding, and cutting of the binding wire can be performed at the hand of the binding machine. That's what I did.

Furthermore, the binding mechanism in the binding device of the present invention includes:
The wire from the feeding mechanism is guided through the main body, and the free end of the wire fed out through the twisting piece and clamp of the binding mechanism is guided from the side of the binding head into the twisting groove of the clamp and twisting piece. This made it possible to insert it into the .

In addition to an electric motor, an air motor may be used as the motor for driving the binding mechanism in the present invention.

Furthermore, in the present invention, as a control means for the binding mechanism and the wire supply mechanism, the handle portion of the binding machine is provided with a switch for supplying and pulling back the wire, and for sequentially performing each operation of clamping, twisting, and cutting the wire. It is configured so that the signals from these switches are sent to a separate control unit to control each drive motor, and in particular, the operation shaft of the binding mechanism specifies the torsional rotation and its stop position. A sensor is arranged to control the bundling drive motor through a counter circuit.

Embodiment: Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 to 9, there is shown a binding machine 1 with a handle that is easy to carry, and a wire that supplies wire to the binding machine 1. The supply device 50 is separated from the supply device 50, and both are attached to the binding machine 1 side and the wire W is supplied and controlled via an electric control mechanism by switch operation.
It is configured so that pulling back, binding, cutting, etc. are performed in a preset order.

In the binding machine 1, a binding head 10 is attached to the front end of a main body 2 equipped with a gripping part 3 via a mounting seat 4, and a flange-type drive motor M is mounted on the side of the main body 2 parallel to the gripping part 3. The output shaft M' of this motor M protrudes into the head cover 11 that surrounds the mechanism constituting the bundling head 10, and a small gear 13 is fixed thereto.
From there, through the large gear 14' and small gear 14'' on the first intermediate shaft 14, the gear 15' on the second intermediate shaft 15 meshes with the small gear 14'', and the small gear 15'' on the shaft 15 meshes. A gear 16' on the operating shaft 16 is decelerated by a gear train in order to drive the operating shaft 16, and a gear 21 meshes with the gear 16' on the operating shaft 16 via two idle gears 17, 17 that mesh with the gear 16' on the operating shaft 16. ′
Three cams 37 are arranged and fixed on the operating shaft 16 for operating a clamp and a cutter (both of which will be described later), and this operating shaft rotates 161 times. The gear ratio is set so that the twisting piece 21 rotates twice. The shafts 14, 15, 16 to which these gears are attached are rotatably supported by bearings provided on the head cover 11, and the torsion piece 21 and the idler gear 1
Both the 7th and 17th axes are kept stationary by a bracket 18 supported on the operating shaft 16. Wire clamps 23, 23' are disposed at the front and rear positions of the twisting piece 21, and a cutter 40 is disposed at a position adjacent to the clamps on the feeding side of the wire W. A binding mechanism 20 is constituted by these twisting pieces 21, wire clamps 23, 23', and their driving operation parts. The binding wire W is connected from the lower rear end of the main body 2 to the binding head 10.
The material is guided and supplied to the lower part of the material via guides 5 and 5' provided in the middle.

Twisting piece 21 is the main part of such binding mechanism 20
As shown in FIGS. 2 and 7, a deep cut groove 22 is provided along the entire length along the axis on one side, and the cut groove 22 has a width that allows the wire to be inserted in an appropriate section of the longitudinal center of the groove 22. The front and rear sides of the cut groove 22 are made wider than the central part so that the twisted wire can be accommodated therein, and the central part of the cut groove 22 has an expanded shape with chamfered edges so that the wire can be easily inserted and taken out. ing. The gear 21' portion is provided on the center outer periphery, and the brackets 18, 1 are provided on the front and rear outer peripheries.
8, and is rotatably supported by the kerf 2.
A notch 18' for wire insertion is also provided in the supporting portion of the twisting piece 21 of the bracket 18 so as to coincide with the notch 22 when the bracket 2 is in the normal position.

Wire clamps 23 and 23' arranged before and after this twisting piece 21 are pressers that are supported by inserting stem shafts 24'' and 24'' into support holes 11' and 11' provided in the binding head 10, respectively. It consists of pieces 24, 24' and receiving pieces 25, 25' disposed opposite thereto, both of which are attached to the head 10.
protrusions 26a, 2 that are fixed to the lower part of the screen and partitioned so that two wires W are held in parallel inside the protrusions 26a, 2;
Two auxiliary receiving pieces 2, long and short, with 6b protruding from the tip.
6, 26' are pivotally supported at their base ends by pins 26'', and are arranged in a raised state by torsion springs 27, respectively.
A sheath shaft 28 with a cam roller 29 is fitted onto the upper end of the stem shaft 28 and connected to a pin 28'.
The sheath shaft 28 passes through an elongated hole 28'' provided on the 4'' side and is movable in the axial direction relative to the stem shaft 24'', and the lower end of the sheath shaft 28 and the stem shaft 24'' fit together. A plurality of disc springs 31 are fitted on the sheath shaft 28 side through a collar 30 interposed in the middle between the upper surface of the insertion and support part, and a coil spring 31 is fitted on the support part side. ' is inserted between the holding pieces 24, 24' so that the holding pieces 24, 24' are always at the standby position. As shown in FIG. 4, a locking claw piece 33 is attached to the holding piece 24' of the front side wire clamp 23' of the twisting piece 21, and this locking claw piece 33 fixes only the free end of the wire W during binding. The retaining pawl piece 33 is supported by a pin 34 on the presser piece 24' in a twisted position, and has a curved lower surface and a saw blade-shaped retaining tooth 33' for detent, which is bored on the upper surface side. Bottomed hole 3
A coil spring 34' is inserted into the holding piece 24' so as to apply a reaction force to the lower surface of the locking claw mounting notch 24a of the holding piece 24' so that the holding piece 24' can be pushed down. These wire clamps 23, 23' are connected to an arm 3 whose main part is pivoted on a shaft 35 disposed above the operating shaft 16.
The end of the arm 36 is connected to the operating shaft 16 so that the operating portions 36' of the arms 36 and 6 come into contact with the rollers 29, respectively.
It comes into contact with the upper cam 37, and the cam 37 acts as a lever at a predetermined timing, and the clamps 23, 23'
is set to work.

Also, the wire clamp 23 on the wire feeding side
The wire cutter 40 adjacent to the wire cutter 40 has almost the same configuration as the wire clamp described above, and has a wire insertion cut with a slope that narrows toward the exit side and has a thickness that allows only one wire W fed out from the main body 2 side to pass through the inside. The cutter head 41 equipped with 42 is
It is supported by a stem shaft 43 that passes through a support hole 11'' provided in the binding head 10, and the upper end of this stem shaft 43 is connected to a sheath shaft 44 having a roller 45 on the top, and the lower end of the sheath shaft 44 and the stalk shaft fit together. A coil spring 44' is fitted between the cutter head 41 and the upper surface of the insertion support part so that the cutter head 41 is always maintained at a standby position. The arm 36A, supported on the shaft 35, is associated with the wire in shear by the end face 25'' of the piece 25.
The cutter head 41 is operated by a cam 37' on the cutter head 6, and when the cutter head 41 is pushed down by the tip operating portion 36'' via a roller 45, the cutter head 41 is cut.

The electric control mechanism 60 as a control means for operating the above-mentioned binding mechanism 20 is an operation switch 6.
1,61' is incorporated into the grip part 3 of the main body 2,
It is connected to a control box 62 which can be installed separately. The operation switch is start/stop switch 6
1 and wire feed/pull back operation switch 6
The operating section including the control operation switches 61 and 61', the binding mechanism drive motor M, and the separately installed drive motor M1 of the wire supply mechanism 50 are as shown in FIG. are associated by an electrical control mechanism 60 including controls incorporated within a control box 62. The control box 62 includes a controller 63, a counting circuit 64 for setting the number of twists of the wire and the standby position,
Driver 64', counting circuit 65 for setting wire feed-out and pull-back, driver 65'
is incorporated, a sensor 66 for detecting the rotation speed in relation to the operating shaft 16 is incorporated on the binding machine 1 side, and this is connected to the control section, and the wire supply mechanism 50 side is connected to the motor M1. A signal from the pulse generator 55 is connected to a control section for operation.

The wire supply mechanism 50 is of a stationary type and has a well-known structure consisting of a combination of a plurality of pinch rollers 51, 51' and a wire straightening roller group 52. The wire supply mechanism 50 may be of a fixed type or may be of a structure that can be placed on a trolley and transported.

The function of the device of the present invention configured in this way is to bind objects (such as steel bars, shaped steel, steel pipes, logs, etc.)
The electric control mechanism 60 is kept in the operating state by placing the binding machine 1 at the binding position of the wire W. is sent to the feed line section at the bottom of the main body 2, and is sent out through the guides 5, 5, passing through the main part of the bundling mechanism 20 in the bundling head 10. When the required amount of wire W has been fed out, feeding of the supply mechanism 50 is stopped, and this wire W is wound once around the binding portion of the objects to be bound, and its free end side W is opened at the side of the binding head 10. Holding pieces 24, 24' of clamps 23, 23' and receiving piece 2
5, 25' and the cut groove 22 of the twisting piece 21, and insert the tip of the free end side W between the locking claw piece 33 attached to the clamp 23' in the front position and the receiving piece 25'. Insert it and hold it temporarily. By doing this,
The distal end of the locking claw piece 33 is constantly pressed down using the pivot pin 34 as a fulcrum by the force of an internal coil spring 34', and the locking tooth 33' is attached so that it gradually engages in the direction in which the wire comes out. Therefore, once it is inserted and a pulling force is applied to the wire W, it is automatically locked.

Then, pull back the slack in the wrapped wire W (by reversing the drive of the wire supply mechanism manually or with the switch attached to the grip), and when the wire is finished wrapping around the object, push the twist operation switch 61. By driving motor M,
Gear train 13, 14', 14'', 15', 15'', 1
At the same time as the cam 37 on the operating shaft 16 is driven by the cam 37', the twisting piece 21 also rotates.
The holding pieces 24 of the clamps 23, 23' via A,
24' is pushed down to fix the wire W at the front and back positions of the twisting piece 21. As the twisting piece 21 rotates in this state, the two wires W between the two clamps 23 and 23' positions have their central parts located in the narrow part of the cut groove 22 of the twisting piece 21, so that are twisted and tied as shown in Figure 9. Just before the twisting piece 21 rotates a set number of times and finishes twisting the wire, the arm 36A is operated by the cutter operation cam 37' on the operation shaft 16, and the cutter head 41 is pushed down, thereby tightening the adjacent clamp. 23 receiving piece 25 end face and cutter head 4
The wire W is cut by one end face, and the bundled portion is separated.

In this way, the binding operation is completed and the operating shaft 16
When it rotates once and returns to the predetermined position, a preset electrical position detection means (for example, a proximity switch) issues a drive stop signal to the control section, and the cams 37, 37' on the operating shaft 16 and the twisting piece 21 kerf 2
2 becomes the state before starting the work, and the chucking of the wire by the clamps 23 and 23' is also released. Therefore, by laterally moving the entire tying machine 1, the tying wire is removed from the head 10, and the tying operation is completed.

In addition, when attaching the wire to the clamp part before bundling, the receiving pieces 25, 25' are equipped with auxiliary receiving pieces 26, 26' each having protrusions 26a, 26a for arranging the wires in parallel. When the pieces 24, 24' are lowered, if they come into contact with the holding piece due to the attached spring force, they will also fall together and will not impede the clamping force.

In addition, although a part of the rotating gear 21' is notched in the twisting piece 21 by a cut groove 22, two idle gears 17,
17, so even when reaching this notch, either one of the gears 17,
17 are always engaged, so there is no problem.

In the manner described above, the binding machine 1 is placed at the location where the objects to be bound are to be bound, the wire is wound, and the motor M is driven via the control mechanism by operating the switch at hand. , it becomes possible to bind at any position.

Effects of the invention: According to the present invention, as described above, the binding machine, which is small and can be carried at any position, can be placed on the object to be bound and easily operated, and the binding machine can be easily operated to prevent twisting, which is the main part of the binding. Since the wire ends can be attached and removed after binding without the need for special means, it has become a convenient product that can be used to handle anything from long items to other small items. It is.

[Brief explanation of drawings]

Fig. 1 is a schematic diagram of an embodiment of the binding device of the present invention, Fig. 2 is an enlarged detailed view of the main parts, Fig. 3 is a diagram showing the drive mechanism, Fig. 4 is an enlarged sectional view of the wire free end fixing part, Fig. 5 is a plan view of the receiving piece of the clamp section, Fig. 6 is a - perspective view of Fig. 5, Fig. 7 is a central cross-sectional view of the twisting piece, Fig. 8 is an electrical control block diagram, and Fig. 9 is a bundling section. It is a figure showing an aspect. DESCRIPTION OF SYMBOLS 1... Binding part, 2... Main body of the bundling machine, 3... Gripping part, 10... Binding head, 11... Head cover, 16... Operating shaft, 18... Bracket, 20
... Binding mechanism, 21 ... Twisted piece, 22 ... Cut groove,
23, 23'...Wire clamp, 24, 2
4'... Pressing piece, 25, 25'... Receiving piece, 26,
26'... Auxiliary receiving piece, 29, 29'... Cam roller, 33... Locking claw piece, 34... Locking claw piece pivot pin, 35... Shaft, 36, 36A... Arm, 3
6', 36''...operation unit, 37, 37'...cam,
40... Wire cutter, 41... Cutter head, 50... Wire supply mechanism, 60... Electric control mechanism, 61, 61'... Operation switch, 62
...Control box, 66...Sensor, M...Bundling mechanism drive motor, W...Wire, M1...Wire supply mechanism drive motor.

Claims (1)

[Claims] 1 Consists of a separately placed wire supply mechanism, a portable binding machine whose binding part is driven by a motor, an electric control mechanism that connects and controls both, and a wire supply path. The machine has a binding head attached to the front part of the main body which is equipped with a carrying handle, and inside the binding head there is a pair of clamp mechanisms, a twisting piece located between the clamp mechanisms that rotates the required number of times, and a wire feeder. A binding mechanism is provided in which wire cutters adjacent to one clamp mechanism are arranged in series on the side, and these are operated in a predetermined order by one drive motor via an intermittent motion mechanism. 1. A portable binding device, characterized in that a wire entry/exit opening is formed in the side surface of the binding operation part and connects to the twisting piece and the clamp part, and a binding drive motor is attached to the rear of the head.