JPH0664943B2 - Automatic binding device for processed wires - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention bundles a desired number of processed electric wires cut into a desired length, which are used, for example, for wiring in an electronic device or an automobile, with a rubber band. The present invention relates to an automatic binding device for processed electric wires that automatically performs work.

(Prior Art) This type of processed electric wire is cut into a desired length while sequentially measuring a continuous long electric wire with a length measuring device to the dimensions to be separated, and if necessary, at its end. After the terminal treatment such as stripping the insulation coating or crimping the terminal to the exposed core wire is performed, the processed electric wires are bundled together by a desired number of rubber bands and shipped to the assembly maker.

In this series of operations, the steps of measuring the length of the electric wire and cutting the strip and crimping the terminals are continuously performed by the existing fully automatic crimping machine.

However, since the fully automatic crimping machine cannot bind the processed electric wires with the rubber bands, the actual situation is that the electric wires are manually bound with the rubber bands.

(Problems to be Solved by the Invention) When bundling with rubber bands is manually performed as described above, a lot of labor is required and work efficiency is reduced, which is not suitable for mass production, which causes a cost increase. It was an obstacle to labor saving.

Therefore, the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide an automatic binding device for a processed electric wire that automatically binds a desired number of processed electric wires with a desired number of rubber bands. And

(Means for Solving the Problem) In the automatic binding device for processed electric wires according to the present invention for solving the above problems, a concentrating portion on which a desired number of processed electric wires cut into a predetermined length are placed, and the concentrating portion A swivel arm that receives the processed electric wire in the state where it is held by the open / close fingers at the end and moves it to the bundling position, and a rubber band that is held and held in a looped state with at least three or more pins as a set turns. A large number of rubber band feeding parts are provided along the circumferential direction on the table, and a winding part for sequentially receiving the rubber bands from the rubber band feeding part and binding them to the processed electric wire gripped by the swivel arm. At least three claws that can be expanded and contracted in the radial direction by the expansion and contraction of the cylinder via the link mechanism in the attachment part, and after the claws are reduced in diameter and thrust into the inside of the pin of the rubber band feeding part, Radial direction The expansion and contraction mechanism that expands the diameter to receive the rubber band held by the pin and held by the claw, and with the rubber band held by this claw fitted around the processed wire, remove the claw from the rubber band. A detaching mechanism for operating and binding the processed electric wires with a rubber band was provided.

(Example) Below, the automatic binding device of the processed electric wire by this invention is demonstrated in detail based on the Example shown in figure.

FIG. 1 is an overall schematic view showing an electric wire automatic processing apparatus including a bundling device. This automatic processing apparatus sequentially measures a length to be cut and separated from an electric wire 1 continuously fed out. The long device 2 and the measured electric wire 1 are cut and separated at a predetermined position, and at the same time, the cutting and strip portion 3 for exposing the core wire by peeling off the insulating coating at the end thereof, and the electric wire 1 exposed by this cutting and peeling Alternatively, the first and second terminal crimping parts 5, which attach the terminal 4 to the core wire of the processed electric wire 1a,
6, and a concentrating device 7 on which the desired number of processed electric wires 1a are received from the second terminal crimping portion 6 while being counted,
A desired number of processed electric wires 1a are collectively received from the concentrating device 7, and a bundling device 9 for bundling a rubber band 8 around the bundling device 9 is provided. In addition, in front of the length measuring device 2, a habit removing roller group 2a for correcting the distortion of the electric wire 1 is provided.

Of the above, the length measuring device 2, the cutting and stripping portion 3, and the first and second terminal crimping portions 5 and 6 all have existing structures, but these will be schematically described.

The length measuring device 2 passes the electric wire 1 around a guide roller 2b driven by a pulse motor or the like with a predetermined diameter, and cuts and separates the guide roller 2b into desired lengths preset based on the number of rotations or the rotation angle of the guide roller 2b. In order to do so, the length of the electric wire 1 is measured.

The cutting / strip portion 3 has a pair of upper and lower cutting blades 3a located in the center and two pairs of peeling blades 3b, 3b located on both sides, and the tip portion of the electric wire 1 is provided in front of these blades 3a, 3b. Three
b and the first terminal crimping portion 5 are provided with a moving tool 3c for guiding them as shown by an arrow, and the rear end of the processed electric wire 1a separated by the cutting blade 3a is provided behind each of the blades 3a and 3b. A moving tool 3d for guiding the portion between the blades 3a, 3b and the second terminal crimping portion 6 as shown by an arrow is provided.

The first terminal crimping portion 5 is provided with a terminal 4 at the tip of the processed electric wire 1a.
The second terminal crimping portion 6 is for attaching another terminal 4a to the rear end portion of the processed electric wire 1a. Note that at least one of the first and second terminal crimping portions 5 and 6 can be omitted depending on the number of terminals 4 and 4a to be attached. Further, when the terminals 4 and 4a are not attached to the processed electric wire 1a, the action of the peeling blade 3b of the cutting / strip portion 3 can be omitted.

Next, the concentrating device 7 and the bundling device 9 are novel constituent elements that have not existed in the past.

The concentrating device 7 includes a first swivel arm 10 that receives the processed electric wires 1a one by one while counting the processed electric wires 1a from the second terminal crimping part 6 or the cutting and stripping part 3, and the first swivel arm 10.
Of the processed electric wires 1a that have been moved together are placed on the collecting unit 11 in a desired number.

In addition, the bundling device 9 includes the bundling unit 11 in the bundling device 7.
A second swivel arm 12 that collectively receives a desired number of processed electric wires 1a from a plurality of processed electric wires 1a, and a winding portion 13 that winds a rubber band 8 that is a binding material around a large number of processed electric wires 1a held by the second swivel arm 12. It comprises a rubber band feeding unit 14 for supplying the rubber band 8 to the winding portion 13.

The gathering portion 11 of the gathering device 7 and the second gathering device 9 of the gathering device 9.
Details of the swivel arm 12 will be described with reference to FIGS. This gathering portion 11 is an electric wire receiver 1 having an opening / closing finger 11a.
1b and a fluid cylinder 11 for opening and closing the opening and closing fingers 11a
and c.

The second revolving arm 12 has, for example, an arm-like structure of an industrial robot, and includes a pair of open / close fingers 12a for gripping and receiving the processed electric wire in the electric wire receiver 11b, and the open / close fingers 12a. Fluid cylinder 12b to be opened and closed
It has and.

The operation of the gathering portion 11 and the second swivel arm 12 will be described. In FIGS. 2A to 2B, the processed electric wires 1a subjected to the terminal treatment are sequentially gathered on the electric wire receiver 11b. At this time, the opening / closing finger 11a is closed and the second swing arm 12 is waiting nearby. Next, FIG. 3 shows a state in which the second swivel arm 12 swivels and the open / close fingers 12a are positioned around the processed electric wire 1a in order to receive a predetermined number of processed electric wires 1a. Next, as shown in FIG. 4, the opening / closing finger 11a is once opened and the second swivel arm 12 grips the assembled processed electric wire 1a and separates it from the electric wire receiver 11b, and the rubber band 8 is wound around the processed electric wire 1a. Waiting until.

Although not shown in the figure, a detector such as a micro switch that is activated each time the first turning arm 10 is turned is provided in the passage of the first turning arm 10, and a counter that adds the detection signal is activated. I will let you. The count value of this counter is compared with the set value of a digital switch or the like that can be arbitrarily set to the desired number, and when the desired number is reached, the counted value is reset, and at the same time, the fluid cylinder 11c and the second swivel arm. 12 and the like are actuated to synchronously drive the concentrated processed electric wire 1a so as to transfer it to the next step.

Next, details of the winding portion 13 and the rubber band feeding portion 14 of the binding device 9 will be described with reference to FIGS. As shown in these drawings, the winding portion 13 has at least three (four in this embodiment) claws 13a that enter the inside of the rubber band 8 in order to spread and hold the rubber band 8 in an annular shape. Plunger 13b formed of a deer cylinder that movably holds 13a, link mechanism 13c that supports each plunger 13b so that they can approach and separate, and a plurality of fluid cylinders 13d that actuate this link mechanism 13c,
A frame 13e that carries the link mechanism 13c and the fluid cylinder 13d, and this frame 13e is attached to the vertical axis 1
It is provided with a bearing 13g that pivotally supports around 3f, and a fluid cylinder 13h that pivots the frame 13e.

In order to prepare the rubber band feeding section 14 in a state where the rubber band 8 is expanded in an annular shape, at least three rubber rubbers 8 are attached to the outside (four in this embodiment) to form one set. A circular turntable 14b in which a plurality of sets (8 sets in this embodiment) of pins 14a are planted, and this turntable 14
An arm 1 for carrying b rotatably around its central axis
4c, a bearing 14e that supports the base end of the arm 14c so as to be pivotable about a vertical axis 14d, and the arm 14c.
Cylinder 1 for rotating the cylinder about the vertical axis 14d
4f and. At least one rubber band 8 is hung around the pair of pins 14a by hand or by an automatic device.

Next, the operation of the winding portion 13 and the rubber band feeding portion 14
Description will be given in the order of FIG.

In FIGS. 5 to 6, the plungers 13b are brought closer to each other in order to bring the claws 13a of the winding portion 13 closer to each other, but the claws 13a are immersed in the plunger 13b. Further, the turntable 14b in the rubber band feeding unit 14 is shown in a state of approaching the claw 13a.

7 to 8 show a state in which the claw 13a projects to the outside and the rubber band 8 around the pin 14a reaches the periphery of the claw 13a.

Next, in FIGS. 9 to 10, the plungers 13b carrying the claws 13a are separated from each other by the link mechanism 13c, the rubber bands 8 are hooked around the claws 13 and the pins 14
It is in a state of receiving from a. At this time, the claws 13a and the pins 14a are displaced from each other so as not to interfere with each other.

Next, referring to FIGS. 11 to 12, the turntable 14b is attached to the nail 1.
3a, the claws 13a spread out from each other, and the rubber bands 8
Holding

Next, as shown in FIG. 13, the rubber band 8 held around the claw 13a is conveyed to the periphery of the processed electric wire 1a gripped by the second swivel arm 12 (see FIG. 4) by the action of the fluid cylinder 13h. To be done.

After that, as shown in FIG. 14, the claw 13a is retracted into the plunger 13b, so that the rubber band 8 is locked by the claw 13a.
The processed electric wire 1a is wound around the processed electric wire 1a, and its elasticity keeps the bound state to complete one binding of the processed electric wire 1a.

After this binding is completed, as shown in FIG.
a and the plunger 13b are returned to their original positions (the positions shown in FIGS. 5 and 6), and the turntable 14b moves to the next rubber band 8
In order to supply the claw 13a around the claw 13a, the claw 13a is rotated by a desired angle about the central axis and is again approached to the claw 13a. Then, the same operation is repeated. Two or more rubber bands 8 may be wound around the processed electric wire 1a.

By using the binding device 9 described above, since the worker only has to hang the rubber band 8 on the turntable 14b, the labor is greatly reduced, and if the rubber band hanging is also performed automatically, the labor is completely saved. be able to.

The claws 13a are described as being retracted into the plunger 13b when the rubber band 8 is removed, but they may be inclined inward with respect to each other as shown in FIG. Further, in the above-described embodiment, the processed electric wires 1a having a predetermined size, which are processed by the second terminal crimping portion 6 or the cutting and stripping portion 3, are counted one by one through the first swivel arm 10, and the electric wires of the collecting portion 11 are counted. The processed electric wires 1a transferred by the first swivel arm 10 are temporarily stored in another place for each desired number of wires, and are manually transferred to the electric wire of the concentrating portion 11. You may make it mount in the receptacle 11b.

(Effects of the Invention) As is apparent from the above embodiments, the device for binding processed wires according to the present invention automatically binds the processed wires cut into a desired length with a desired number of rubber bands. I chose

Therefore, as compared with the conventional bundling of rubber bands, the bundling work is efficiently performed without requiring much labor, which is suitable for mass production, and cost reduction and labor saving can be achieved.

Also, in this binding device, a rubber band hooked and held in an annularly spread state on a pin on a turntable is radially expanded as it is with a pawl that can be expanded and contracted in the radial direction thrust into the inside of the pin with the diameter reduced. The processed electric wire can be bound with the rubber band by receiving it by making the diameter and by removing the rubber band from the pawl while the rubber band held by the claw is fitted around the processed electric wire. Therefore, since there is no complicated operation, the device is highly reliable and a reliable binding work can be performed.

[Brief description of drawings]

FIG. 1 is an overall schematic explanatory view of an electric wire automatic processing apparatus including a processed electric wire binding device according to an embodiment of the present invention.
1A is a detailed view of a main part of the concentrating device in FIG. 1, FIG. 2B is a sectional view taken along the line BB of FIG. 1A, and FIGS. ) Is an operation explanatory view of the concentrating device, FIG. 5 is a plan view of a main part of the binding device in the device of FIG. 1, and FIG.
FIG. 7 is a front view of the figure, FIGS. 7 to 15 are operation explanatory views of the binding device of FIGS. 5 and 6, and FIG. 16 is FIGS.
It is a principal part schematic perspective view which shows other Examples of the binding device of a figure. DESCRIPTION OF SYMBOLS 1 ... Electric wire, 1a ... Processed electric wire 2 ... Length measuring device, 3 ... Cutting and strip section 4, 4a ... Terminal, 5 ... First terminal crimping section 6 ... Second terminal crimping section, 7 ... Concentrator 8 ... Rubber bands, 9 ... Bundling device 10 ... 1st turning arm, 11 ... Converging part 12 ... 2nd turning arm, 13 ... Wrapping part 13a ... Claw, 13b ... Plunger 14 ... Rubber band feeding part, 14a ... Pin 14b ... Turn table

 ─────────────────────────────────────────────────── ─── Continuation of front page (56) Reference JP-A-51-77496 (JP, A) JP-A-55-102118 (JP, A) JP-A-53-90587 (JP, A) JP-A-58- 100316 (JP, A)

Claims (1)

[Claims] 1. A concentrating part on which a desired number of processed electric wires cut into a predetermined length are placed, and the processed electric wires of the converging part are received and moved to a bundling position in a state of being collectively gripped by the opening and closing fingers. A rubber band feeding section in which a large number of rubber bands are provided along the circumferential direction on a turntable, which are held in a state of being unfolded in an annular shape by a swivel arm and at least three or more pins as a set, and this rubber band. And a winding part for sequentially receiving the rubber bands from the feeding part and binding the processed rubber wire to the processed electric wire gripped by the swivel arm. The winding part is at least 3 expandable and contractible in the radial direction by expansion and contraction of the cylinder through a link mechanism. More than one claw, and after the claws are reduced in diameter and thrust into the inside of the pin of the rubber band feeding section, the claws that have been radially expanded and retained by the pin are received by the claw. Expansion and contraction mechanism and this claw An automatic bundling of processed electric wires, characterized in that, with the held rubber band fitted around the processed electric wire, there is provided a detaching mechanism for operating the claw to separate the processed electric wire from the rubber band and binding the processed electric wire with the rubber band. apparatus.