JPS5854324Y2 - tying machine - Google Patents

Description

[Detailed description of the invention] The present invention relates to a binding machine that uses a single binding head to tighten and bind multiple circumferential locations of coil-shaped objects to be bound using a binding wire. It is possible to carry objects to be bound into a binding position and to carry out already bound objects from a binding position efficiently and quickly, and to bind objects to be bound at multiple locations in a compact and inexpensive configuration. The point is to always ensure reliable binding.

Hereinafter, one embodiment of the present invention will be described based on the drawings.

In Figures 1 and 2, 1 is a conveyor on the carry-in side, and 2 is a conveyor on the discharge side, each of which is of a two-row parallel type, and by simultaneous operation, it carries in the unbound coil 3, which is the object to be bound, and at the same time unbinds the bundled coil. Carry it out.

Note that the stopping is performed by detecting the coil 3 before bundling.

Reference numeral 4 denotes an elevating and rotating device disposed at the lower part of the center of the binding machine, which raises and lowers the pre-binding coils 3 on the conveyors 1 and 2 and rotates them through a predetermined angle in a lifted state.

Reference numeral 5 denotes a positioning device which stops approximately at the center of the binding machine and positions the coils 3 before binding that have been lifted by the lifting and rotating device 4.

6 is a binding head arranged above one side of the positioning device 5.

Both conveyors 1 and 2, the lifting/lowering rotation device 4, and the positioning device 5 are supported on the machine frame 9 side.

Further, the binding head 6 is supported via a bracket 12 on a truck 11 that can move toward and away from the center 8 of the binding machine.

The bracket 12 is provided with a feeder 14 for feeding and returning the wire 13, which is a bundled wire material, and the trolley 11 is provided with a guide track 1 for guiding the wire 13.
5 is provided.

The bogie 11 is guided on a rail 17 via wheels 16, and its movement is achieved by attaching a nut 19 to the rail 17 side, which screws onto a threaded rod 18 connected to the rear end of the bogie, and then tightening the end of the threaded bar 18. This is possible by rotating the ratchet handle 20.

21 is a wire wire dispenser provided on the rail 17, which includes a wire guide 22 that guides the wire 13 without tangling, and a sail 23 that is fitted onto the wire guide 22.
The wire 13 taken out from the center of the dispenser 24
The aperture part 25 that guides the aperture while constricting, and this aperture part 25
The sheave part 26 guides the wire 13 from the feeder 14 to the feeder 14 side, and the constriction part 25 and the sheave part 26 are supported by a support 27 from the rail 17 side.

Next, details of each part will be explained.

Lifting and rotating device 4 (see FIGS. 1 to 4) 28 is a support frame 29 from machine frame 9 and a pair of guide rods supported by machine frame 9, and guided by these through housing 30. A cylinder 31 is provided.

This cylindrical body 31 is interlocked with a power cylinder 33 attached to the machine frame 9 via a bracket 32, so that it can be raised and lowered on the binding machine center 8 by the operation of the power cylinder 33.

Reference numeral 34 denotes a rotating shaft inserted through the cylinder 31 and supported by the cylinder 31 via a bearing 35, so that it can rotate about the center 8 of the binding machine.

36 is a passive gear attached to the lower end of the rotating shaft 34, with which a driving gear 38 from a cyclo reducer 37 attached to the cylindrical body 31 side meshes.

Reference numeral 39 denotes a coil receiver attached to the upper end of the rotating shaft 34, which is shaped like a cross in plan view.

This coil receiver section 39 moves up and down so that its coil receiver surface 39a moves in and out of the conveyor surfaces 1a and 2a.
This is also done by placing these conveyors 1 and 2 in parallel.

Positioning device 5 (see FIG. 2) The positioning device 5 is for centering the unbundled coils 3 that have been brought in, and this is done by pressing the drum-shaped rollers 40 into contact with each other from four directions.

Each drum-shaped roller 40 is attached to a free end of a lever 41, and its base end is fixed to a vertical shaft 43 rotatably supported by a bearing 42.

Each vertical shaft 43 is linked to one driving device, so that each drum-shaped roller 40 moves toward and away from the pre-binding coil 3 at the same time and in the same direction.

Binding head 6 (see FIGS. 1, 2, and 5 to 7) 61 is a main body base that is attached to the bracket 12 from the truck 11, and the driven gear 63 is connected to the base 62 attached to the bottom surface of the body base. support.

That is, the passive gear 63 has a long cylindrical boss portion 64,
This boss portion 64 is connected to the main body base 61 via a bearing 65.
It is rotatably supported by the bowl-shaped member 62.

Twist shafts 66 are disposed downwardly from the inside of the boss portion 64, and are fixed to the boss portion 64 via pins 67.

Further, clamp rods 68 are disposed in the boss portion 64 so as to be mutually arranged upwardly from the top.

A pair of vertical slits 70 and 71 are formed in the twist shaft 66 in line symmetry with respect to the rotation axis 69, and the first clamp claw 72 is inserted into one of the vertical slits 1-70, and the first clamp claw 72 is inserted into the other vertical slit 71. The second clamp claw 73 is inserted.

These clamp claws 72 and 73 are square bar-shaped, and as they move up and down, a movable clamp surface 72a is formed on the lower surface.

73a can approach and separate from the fixed clamping surfaces 66a, 66b formed on the twist shaft 66.

The second clamp claw 73 is fixed to the clamp rod 68 via a joint pin 74, and the first clamp claw 72 is connected to the clamp rod 68 via a joint pin 75 and a long hole 76 formed in the clamp rod 68. be done.

The joint pin 75 also serves to fix the lower spring receiver 77 on the outer periphery of the clamp rod 68.

Upper spring receiver 78 attached to clamp rod 68
A compression coil spring 79 is provided between the lower spring receiver 77 and the lower spring receiver 77, so that the first clamp claw 72 is biased downward so that the joint pin 75 comes into contact with the lower end of the elongated hole 76.

Before the bundling work, the distance 12 between the clamp surfaces on the second clamp side is set larger than the distance 11 between the clamp surfaces on the first clamp side, and further than this distance 12,
Distance 13 between the twist shaft and clamp Shirorad, and spatial distance 14 of the elongated hole formed above the joint pin 75
is set to large.

A case 81 is attached to the upper end of the clamp rod 68 via a bearing 80, and a roller 82 attached to the case 81 can be moved within a groove 84 formed in the middle of the lever 83 in the length direction.

The base end of the lever 83 is attached to a bracket 85 from the main body base 61 via a horizontal shaft 86, and the free end is connected to an air cylinder 87 attached to the main body base 61.

This air cylinder 87 is of a two-stage operating type, with a first limit switch 88 for detecting maximum extension, a second limit switch 89 for detecting first-stage contraction, and a third limit switch 90 for detecting second-stage contraction. will be placed.

Reference numeral 91 denotes an air motor that can be driven in forward and reverse directions, which is attached to the main body base 61, and a drive gear 92 attached to its output shaft meshes with the passive gear 63.

A circular arc surface 93 is formed at the lower part of the passive gear 63, and a stepped portion 94 is formed at one position of the circular arc surface 93.

A stopper 95 is swingably attached to the bowl-shaped member 62 via a shaft 96, and is biased by a helical spring 97 to come into contact with the arcuate surface 93. prevent the reversal of

98 is a wire guide, and its supply side guide portion 99 is a second wire guide.
It communicates with the lower part of the clamp-side vertical slit 71, and the take-out guide part 100 communicates with the lower part of the first clamp-side vertical slit 70.

The wire guide 98 consists of a pair of left and right divided bodies 98A and 98B with respect to the wire moving direction, and these divided bodies 98A,
Reference numeral 98B is configured to be able to swing toward and away from the bowl-shaped member 62 via swing arms 101A and 101B, and air cylinders 102A and 102B that perform the swinging.
is provided on the main body base 61.

A wire guide 103 is attached to the bowl-shaped member 62 and communicates with the lower part of the vertical slit 71 on the second clamp side.

104 indicates a die.

Reference numeral 105 denotes a contact detection device, which includes a vertical cylinder 106 attached to the main body base 61, a rod 107 inserted into the cylinder 106, and a detection part 1 attached to the lower end of the rod 107.
08, a spring 109 that biases the rod 107 downward, and a nomit switch 1 that detects the rise of the rod 107 by a certain amount.
10, this limit switch 110 is configured to be movable up and down, so that its detection position can be adjusted, and furthermore, the upward movement of the up-down rotation device 4 is stopped by the detection.

Reference numeral 45 denotes an attachment for pushing down the dividing body 98B, and when the dividing bodies 98A and 98B are brought into contact with each other in a wire guide position, the dividing body 98 is
It is configured to be located between the lower surfaces of A and 98B.

Further, on the lower surface of this twisting eye push-down tool 45, there is formed a push-down inclined surface 46 extending on both sides of the rotation axis 69.

A guide track 15 (see FIGS. 1 and 8) 111 is a fixed guide attached to a member 112 from the truck 11, and a guide portion 113 with an open front can be connected to the extraction side guide portion 100.

A movable guide 114 is swingably attached to the member 112 via a pin 115 and is formed in an arc shape of 180° or more.
13 and the supply side guide section 99.

The movable guide 114 is oscillated by an air cylinder 117 provided between the movable guide 114 and the carriage 11, and a limit switch 118 for detecting upward motion and a limit switch 119 for detecting downward motion.
and will be provided.

Further, the fixed guide 111 is provided with a limit switch 120 for wire passage detection.

Next, the binding work will be explained.

Before the binding work, the following situation is established.

That is, the trolley 11 is moved by operating the ratchet bundle 20 in accordance with the size of the coil 3, and the coil 3 is
A binding head 6 is positioned directly above the part to be bound.

Further, the guide track 15 moves downward, the positioning device 5 moves away, and the lifting/lowering rotation device 4 descends.

In this state, the coils immediately after being bundled are carried out by the conveyors 1 and 2, and at the same time, the coils 3 before being bundled are carried in.

At the time of this delivery, the type of coil 3 (particularly the difference in outer diameter) is determined using a phototube, and based on this, the binding machine is stopped at the center.

In this state, the coil receiver is moved to the part 3 by the operation of the lifting and rotating device 4.
9 and lift the coil 3 slightly above the conveyors 1 and 2 to bring it to an intermediate position.

Next, the positioning device 5 is operated to align the coils 3 with respect to the binding center by clamping each of the advanced drum-shaped rollers 40, and at the same time to correct any collapse of the load that has occurred during conveyance.

This operation of the positioning device 5 is repeated multiple times to increase the positioning function.

Next, the coil receiver section 39 is rotated by 45 degrees by the rotating section of the lifting/lowering rotation device 4.

This is done to prevent collision between the cross-shaped arms and the guide track 15, etc.

Now we move on to the binding cycle. That is, the wire guide 98 of the binding head 6 closes as shown by the solid line in FIG. 6, and the guide track 15 moves upward from the imaginary line in FIG. 8 as shown by the solid line.

As a result, a passage is formed through which the wire 13, which is the binding wire, passes, and the bound portion of the coil 3 is positioned within the passage.

In this state, the feeder 14 operates normally, and the wire 13 is drawn out and fed from the wire dispenser 21 side without becoming entangled.

As shown in FIGS. 5 and 8, the wire 13 to be sent out is transferred from the wire guide 103 to the lower part of the vertical slit 70 to the supply side guide part 99 to the guide part 116 to the guide part 11.
3→Take-out guide portion 100-+runs under the vertical slit 70, and its free end touches the die 104.

Nomit switch 120 detects that wire 13 passes through fixed guide 111, and the detection signal is sent to feeder 14 via a timer to stop forward rotation.

Then, the wire 13 is further fed within the time set by the timer, comes into contact with the die 104, and after a short period of time, feeding is stopped.

This ensures reliable feeding, but any excess feeding after contact with the die 104 is absorbed by the movable guide 114 being pushed down around the pin 115.

After the feeding of the wire 13 is stopped, the air cylinder 87 is contracted in the first stage, and thereby the clamp rod 68 is lowered in the first stage.

At this time, the first clamp claws 72 are lowered together via the compression coil spring 79, thereby clamping the tip of the wire 13 between the movable clamp surface 72a and the fixed clamp surface 66a.

After confirming that the tip of wire 13 is clamped, the sixth
The wire guide 98 opens as shown by the imaginary line in the figure, and the guide track 15 moves downward as shown by the phantom line in FIG.

As a result, the wire 13 surrounding the coil 3 is removed from the passage.

Next, the feeder 14 rotates in the opposite direction, and the wire 13 is pulled back.

As a result, the ring of the wire 13 becomes smaller and tightens as it comes into contact with the coil 3. At this time, the lifting/lowering rotation device 4 operates to raise the coil 3, thereby sufficiently pulling back the wire 13. .

The rising coil 3 is the detection part 108 of the close contact detection device 105
, and the rod 107 is raised integrally against the spring 109.

When the rising rod 107 operates the limit switch 110, the rising by the lifting and rotating device 4 is stopped due to this detection, and the coil 3 is positioned as shown in the imaginary line in FIG. 6, and then the pulling back by the feeder 14 is stopped. Ru.

Next, the air cylinder 87 of the binding head 6 is contracted in a second stage, and the clamp rod 58 is lowered in a second stage.

As a result, the middle of the wire 13 is held between the movable clamping surface 73a and the fixed clamping surface 66b of the second clamping claw 73 that descends.

At this time, the first clamp claw 72 is not lowered any further because the compression coil spring 79 is compressed, and a suitable clamping state is maintained.

After the clamp claws 72 and 73 are in the clamping state, the passive gear 63 is rotated in the forward direction by the forward rotation of the air motor 91.
Thus, the twist rod 66 is rotated.

Franz at this time. The rod 68 is also rotated together, so that the tip and middle of the wire 13 are rotated while being held between them.

This cuts the middle and creates a twist.

When the air motor 91 is twisted by the set number of twisting rotations, the air motor 91 stops, and the twisting rotation of the twist shaft 66 is stopped.

At the same time, the air cylinder 87 extends and the clamp rod 6
8 to release the clamping by both clamp claws 72 and 73.

Next, the coil 3 is lowered to the intermediate position by the downward movement of the lifting and rotating device 4, and both the divided bodies 98A and 98B are closed, and the twisting mechanism 45 is tied and twisted as shown in solid lines in FIGS. 5 and 6. It is located above the section 13a.

In this state, the lifting and rotating device 4 is moved upward again.

Then, the binding twisting part 13a comes into contact with the pushing-down inclined surface 46, and the binding twisting part 13a is pushed down along this inclined direction, and is made to lie along the coil 3.

Next, the coil 3 is lowered to an intermediate position by the downward movement of the lifting and rotating device 4, and then rotated by 90° by the rotary movement to bring the next binding point to face the binding head 6.

At this time, the air motor 91 is reversely driven, and the stepped portion 94 comes into contact with the stopper 95, so that the binding head 6 returns to its normal working position.

This completes one round of binding, and the binding is performed at four locations in the same manner.

When this bundling is completed, the coil receiver part 39 is rotated by 45 degrees and then lowered to the lowest position to transfer the bound coils 3 to the conveyors 1 and 2, thereby completing all the work.

As described above, according to the present invention, the following effects can be expected.

In other words, since it straddles the end of the conveyor on the loading side of the bound objects at the binding position and the start end of the conveyor for carrying out, it is difficult to carry unbound bound objects into the binding position and to remove bound objects from the binding position. Unloading can be carried out efficiently and quickly through a series of flows.

In addition, by lifting the object to be bound at the binding position using the coil receiver and rotating it at a predetermined angle, it is possible to bind multiple locations with one binding head, which requires the installation of multiple complicated and expensive binding heads. Compared to the format
The whole can be provided compactly and at low cost.

In addition, since the rotated objects to be bound are positioned by the positioning device via rollers that contact the outer periphery of the objects, it is possible to prevent variations during the rotation, and
The binding heads can always be opposed to each other at a preferable position, so that reliable binding can be performed at all times.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a partially cutaway front view of the whole, Fig. 2 is a plan view of the same, Figs. 4 shows a partially cutaway front view, FIG. 4 shows a partially cutaway side view, and FIGS. 5 to 7 show the binding head,
5 is a partially cutaway rear view, FIG. 6 is a partially cutaway side view, FIG. 7 is a partially cutaway plan view, and FIG. 8 is a partially cutaway front view showing the guide track portion. 1... Carrying-in side conveyor, 2... Carrying-out side conveyor, 3... Coil before bundling, 4...
・Elevating and rotating device, 5...Positioning device, 6...
... Binding head, 11 ... Trolley, 13 ...
... wire, 13a ... binding twisting part,
14... Feeder, 15... Guide track, 21... Wire tie dispenser, 3
9...Coil holder part, 40...Drum-shaped roller, 45...Neshiri-me push down tool, 46...
... Slanted surface for pushing down, 66 ... Twist shaft, 68 ... Clamp rod, 72 ...
...First clamp claw, 73...Second clamp claw, 98...Wire guide, 105...
Close contact detection device.

Claims (1)

[Scope of utility model registration request] A binding machine that tightens and binds coiled objects to be bound at multiple locations in the circumferential direction with a binding wire using a single binding head, the binding machine comprising:
A pair of carry-in conveyors are arranged side by side at a predetermined interval, and a pair of carry-out conveyors facing the carry-in conveyors are arranged parallel to each other at a predetermined interval to form a conveyance route. , a coil receiver having a cross shape in a plan view that can be raised and lowered through a gap formed between each conveyor is provided, and the coil receiver has a part that is interlocked with a lifting and lowering rotation device;
A binding head that can approach and move away from the middle part of the transport path from the side is provided, and a pair of positioning devices each having a roller that can come into contact with the side surface of the part to be bound is provided on both sides of the middle part of the transport path. A binding machine characterized by: