JPS6324893B2 - - Google Patents

Description

[Detailed Description of the Invention] [Objective of the Invention] Industrial Field of Application The present invention relates to a method and device for temporarily bundling electric wires, and relates to a method and device for temporarily bundling electric wires, which is installed in an automatic cutting and crimping machine for crimping terminal fittings to the ends of electric wires. The present invention relates to a temporary bundling method and device suitable for reliably bundling electric wires.

BACKGROUND TECHNOLOGY In a conventional automatic cutting and crimping machine, as shown in FIG.
The electric wire w crimped is held by the conveyor claw c on the chain b which is rotated by a sprocket etc. and moves in the direction A, and the conveyor claw c is released at the end and the electric wire w
The system was such that the product was simply left on the product holder d.

Therefore, it is not only necessary to take out the cut and crimped wires (products), but also it takes time to count the number of products because the wires are not bundled into a fixed number of wires, and the wires end up being mixed with the next lot. There were other problems.

Therefore, the present inventors (applicants) first installed a product receiver for receiving a predetermined number of electric wires, a pair of opposing adhesive tape drums, and a device located on the opposite side of the product receiver with respect to the tape drum. and a pair of pressing molds facing each other, and the product bundle supported by the product receiver is movable so as to be drawn between the pair of pressing molds across the adhesive tape stretched between the adhesive tape drums. At the same time, a cushion member having a recess corresponding to the product bundle is provided on the opposing surface of the pressing die,
Furthermore, we proposed a device equipped with a tape cutter for this pressing, and made it possible to automatically bundle the electric wires collected in the product receiver into predetermined numbers using adhesive tape (hereinafter simply referred to as the prior invention device). In the device of the previous invention, the ends of the wires before being bundled with adhesive tape are simply placed on the product holder, causing short objects to lose their balance and long objects to fall or shear due to their own weight. There were problems such as falling.

Problems to be Solved The purpose of the present invention was to solve the above problems, and the purpose of the present invention is to securely hold the twisted wires that are successively conveyed to the product receiver until they are bundled, thereby increasing the number of products. An object of the present invention is to provide a temporary bundling method and device that can prevent counting errors and improve labor savings.

[Structure of the invention]

Means for Solving the Problems In the method for temporarily bundling electric wires of the present invention, a set of product holding claws holds the electric wires that are sequentially conveyed and placed on a product receiver having an open upper end through the opening of the product receiver. Cross the formed virtual receiving space of the electric wire, partially close it, immediately escape from the partially closed position to the side where it intersects with the electric wire, rise away from the receiving space, and rise above the receiving space from the raised position. A device for carrying out this method is characterized in that the set of wire holding claws alternately press down the wire from above by approaching and descending operations to hold the wire in the product receiver, and the device for carrying out this method includes: It has a product receptacle, such as a substantially U-shape with an open upper end, arranged in the direction of extension of the electric wire to receive the electric wire, and a product pressing part located on the side of the product receptacle and at the upper part with one side open. and a set of product holding claws that have an operating section at the bottom and are driven by a rod or the like connected to the operating section, and during operation, the product pressing section is formed by the opening of the product receiver. A means is provided for traversing a virtual receiving space for electric wires, closing a portion thereof, and then immediately escaping to the side where the electric wire intersects and leaving the receiving space.

Function String-shaped products such as electric wires are transported to the product receiver.
A set of product holding claws that operate alternately ensure that each product is held down from above, so that the products will not fall off or shift from the product tray until they are finally bundled. As a result, it is possible to promote labor saving without causing errors in counting the number of products or requiring human labor. In addition, the product holding claw opens away from the virtual receiving space for the product formed by the opening of the product receiver, rises, approaches, and then descends to return to its original state. Since it uses a rotating motion, there are no problems such as tangling with the product or damage caused by pulling.

Embodiments Hereinafter, the present invention will be specifically described with reference to drawings showing embodiments thereof.

FIG. 1 is an explanatory diagram of a wire convergence device to which the device of the present invention is applied.

In the figure, reference numeral 1 denotes a product transfer device having electric wire conveying claws 2, and one side of the device 1 (on the right side in the figure) includes a wire cutting device, a wire stripping device, a terminal crimping device, etc. The machine is equipped with an automatic cutting and crimping device (not shown). Reference numeral 3 denotes a product dispensing claw, which is provided above the transport claw 2 located at the leftmost end R in the figure, so that it can be raised and lowered and movable perpendicular to the moving direction of the transport claw 2. It has a gripper 3a. Reference numeral 4 denotes a product temporary bundling device, which is located in front of the conveying claw 2 at position R, and has a pair of U-shaped product receivers 4a with open upper ends.

Reference numeral 5 denotes a wire concentrator, in which a pair of upper and lower adhesive tape drums 7 and 8 are rotatably supported by pins 9 on the front surface of a device main body 6 located on the left side of the product conveyance device 1 . Reference numerals 10 and 10' are press molds for converging the products with adhesive tape T, which are raised and lowered by a cylinder 11. A cushion material 12, 12' made of an elastic material such as rubber is provided on the opposing surfaces of the upper and lower molds 10, 10', respectively. The cushion members 12 and 12' each have a recess 13 corresponding to the convergence diameter of the product, and the lower cushion member 12' is provided with a tape cutter 14, and the upper cushion member 12 is provided with a cutter receiver 15.
Note that the cutter is not a blade-like cutter, but may be one that cuts the tape by heat. Reference numeral 16 denotes a product bundle moving claw having a pair of grippers 17, 17, and its mounting board 18 is supported by a guide rod 20 installed horizontally in the upper head 19 of the main body 6 of the device, and is supported by left and right sprockets 21, 21'. It is fixed to a rotating chain 22 and reciprocates between it and the temporary bundling device 4. Further, the product bundle moving bundle 16 is transferred to the cylinder 23
The handles 17, 17 are opened and closed by a mechanism not shown. Note that 24 is a conveyor for conveying the bundled products.

The above is the same configuration as the previous invention device, but in this invention, a pair of U-shaped product receivers 4a, 4 facing each other are provided.
A pair of wire holding claws (product holding claws) 25, 25' are provided between the wires a and the wire W therebetween.

The wire holding claws 25, 25' are shown in FIGS. 2 and 3.
As shown in the figure, the upper part of the body part 25a has a horizontal electric wire pressing part (product pressing part) 25b, and the lower part has an operation part 2.
5c, and is formed in a U-shape or C-shape with one side open.

The wire pressing portion 25b extends in a direction that crosses the wire placed on the product receiver 4a, and substantially presses the product receiver 4a.
It is sufficient if the length is sufficient to close the upper end opening 4b. Further, the operating portion 25c has a distal end portion and an intermediate portion thereof connected to a fulcrum rod 26 and an actuation rod 2, respectively.
7 by pins 28, 28', and the rods 26, 27 are connected to a cam (not shown) via a guide rod 29, and are raised and lowered by rotation thereof.

Next, the operation of the wire holding claws 25, 25' will be explained (FIGS. 1 to 5).

(1) Standard closed state The wire holding claw (hereinafter simply referred to as the claw) 25 stands upright, and the wire pressing part 25b is in a horizontal state, and the virtual product is formed between the openings 4b, 4b of the product receivers 4a, 4a. It traverses the receiving space V and is in a partially closed state.

(2) Releasing the pawl The fulcrum rod 26 rises and the pawl 25 touches the pin 2.
The electric wire pressing portion 25b rotates and tilts away from the product receiver 4a around 8', and the wire pressing portion 25b that partially closes the space V immediately escapes to the side where it intersects with the product and opens, resulting in a fully open state.

(3) Raising the pawl The fulcrum rod 26 and the operating rod simultaneously rise, and the pawl 25 also moves upward.

(4) Approach of the claw The actuating rod 27 rises slightly, the claw 25 rotates around the pin 28 toward the product receiver 4a, approaches and stands upright, and the wire pressing part 25 returns to the horizontal state.
b partially closes the space V from above.

(5) Lowering of the pawl The fulcrum rod 26 and the operating rod are simultaneously lowered, and the pawl 25 returns to the standard state (1).

FIG. 5 schematically shows the operation of the claw 25. If the state in which the wire pressing portion 25b can close the space V is the standard (1), as shown by the solid line or dotted line, (2) →(3)→(4)→(5)→(2) It operates periodically in a parallelogram-shaped wheel motion.

Next, a method for temporarily bundling electric wires using the claws 25 will be explained (FIG. 6 A to E).

(a) First, a pair of opposing claws 25, 25' located between the product receivers 4a, 4a
At b, a plurality of electric wires W are pressed against the product receiver 4a.

(b) One claw 25' opens as in (2) above.

(c) The claw 25' rises as shown in (3), and the new next electric wire _W1 carried by the gripper 3a is placed on the other claw 25 (wire pressing part 25b) in the product receiver 4a. .

(d) The claw 25' approaches and descends as shown in (4) and (5) to remove the wire.
Press down W ₁ from above and temporarily bundle.

(E) The other claw 25 performs operations A to D in sequence.

In this way, the pair of claws 25, 25' alternately repeats the operations A to D, temporarily binding the electric wires W ₁ , . . . to the product receivers 4a, 4a one after another.
Can be held securely.

Note that by constantly urging the product receiver 4a upwardly by the spring 30, the electric wire can be held even more reliably.

FIGS. 7A and 7B show other examples of mounting the claws 25 and 25', respectively. That is, in (a), two product receivers 4a are installed at a considerable distance, and a pair of opposing claws 25, 25' are provided on both the front and rear sides of each product receiver 4a;
In B, claws 25 are provided in the same direction at the front and rear of the product receiver 4a.

Above, the pawls 25, 25' are raised and lowered by a cam.
An example of operation using two fulcrum rods 26 and an operating rod 27 has been described, but for example, hydraulic pressure (air pressure)
The operations (1) to (5) may be performed using a cylinder or other means.

Electric wires (products) temporarily bundled as above
are conveyed by the grippers 17, 17 shown in FIG.
10', the press die 10,
10', the adhesive tape T is surrounded and converged and at the same time cut by the tape cutter 11,
It is conveyed again by the grippers 17, 17 onto the conveyor 24.

[Effects of the Invention] As described above, the present invention alternately uses a set of product holding claws that press down the electric wire being transferred and placed on the product receiver and then immediately escape to the side where it intersects with the wire. Because it is designed to restrain the wires, it is possible to continuously supply the wires to the product receiver from above, and it is also possible to press down the wires without interruption to completely prevent the wires from falling off, thereby reducing errors in counting the number of wires. It has the feature that it can be eliminated.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram of a wire bundling device to which the present invention is applied, FIG. 2 is an explanatory diagram showing the mutual relationship between a product temporary bundling device and a gripper 3a showing an embodiment of the device of the present invention, and FIG. Enlarged explanatory diagram of main parts of the device of the present invention, No. 4
1 to 5 are respectively explanatory diagrams of the operation of the device of the present invention, and FIG. 5 is an explanatory diagram schematically showing the operating state,
Figures 6A to 6E are explanatory diagrams of the temporary bundling process of products according to the present invention, Figures 7A to 7B are explanatory diagrams showing other embodiments of the apparatus of the present invention, and Figure 8 is an explanatory diagram of the conventional method. It is. 4...Product temporary bundling device, 4a...Product receiver, 4
b...Opening part, 25...Wire holding claw (product holding claw), 25a...Body part, 25b...Wire pressing part (product pressing part), 25c...Operation part, 26...Fully point rod, 27... ...Operating rod, 28, 28'...
Pin, 29...Guidance rod.

Claims (1)

[Scope of Claims] 1. A set of product holding claws crosses a virtual receiving space for the wires formed by the opening of the product receiver, so that the wires are sequentially transferred and placed in a product receiver whose upper end is open. The part of the set of wires is partially closed, and immediately escapes from the partially closed position to the side where it intersects with the electric wire, thereby rising away from the receiving space, and approaching the upper part of the receiving space from the raised position and descending. A method for temporarily bundling electric wires, characterized in that wire holding claws alternately press down the electric wires from above and hold the electric wires in a product receiver. 2. A substantially U-shaped product receiver with an open upper end arranged in the direction of extension of the wire for receiving the wire;
A set of product holding claws located on the side of the product receiver, having a product pressing part at the top with an open side and an operating part at the lower part, and driven by a rod or the like connected to the operating part. During operation, the product pressing part crosses the virtual receiving space for the electric wire formed by the opening of the product receiver, partially closes it, and then immediately escapes to the side where it intersects with the electric wire and receives the electric wire. A device for temporarily bundling electric wires that is characterized by leaving a space.