JPH0322206Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Background and purpose of the invention] The present invention is an automatic bundling device, more specifically, an automatic bundling device that automatically bundles continuously running wire materials such as thin metal wires and plastic insulated wires. This relates to improvements to the extraction device.

One method of winding wire rods such as thin metal wires and plastic insulated wires has traditionally been the so-called "bundling" method, in which the wire rods are wound into ring-shaped bundles without winding them around a take-up reel or drum. It has been adopted.

Here, a conventional example of an automatic bundling device will be explained based on FIG. 2. In FIG. 2, 1 is a wire rod;
Reference numeral 2 indicates a tensioning machine such as an accumulator that applies a constant tension to the running wire 1; 7 indicates a bundling drum that bundles the running wire 1; 100 indicates a product bundled on the drum 7; A chuck 3, a guide pipe 4, a cutter 5, and a traverser guide roller 6 are arranged between the tensioner 2 and the bundle drum 7 in order from the one closest to the tensioner 2.

In the above configuration, the running wire 1 to which a constant tension is always applied by the tensioner 2 is bundled onto the drum 7 via the guide pipe 4 and the traverser guide roller 6, and the drum 7 is used to hold wires of a specified length. When the wire rod 1 is bundled, the running of the wire rod 1 is automatically stopped, and then the chuck 3 grips a part of the wire rod 1, and the cutter 5 located between the chuck 3 and the bundler drum 7 bundles the wire rod 1. Cutting, discharging, and bundling of the products 100 are continuously and automatically performed.

The structure and operation of the conventional automatic bundling device are as described above, but when this automatic bundling device is used to bundle wire material 1, especially thin-sized wire material, such as electric wire for electronic equipment, the third As shown in the figure, the terminal 1a of the product 100 is easily disturbed, and when the above-mentioned outer terminal 1a is bitten by the binding machine during automatic binding of the bundled products 100, the product 100
This may cause bundling errors or malfunction of the bundling machine.

Outer terminal 1 of products 100 bundled on drum 7
The reason for the disturbance in a is as follows.

That is, in the conventional automatic bundling device shown in FIG. 2, when cutting the wire rod 1, tension is applied between the chuck 3 and the drum 7 that bundles the products 100. When the wire rod 1 under tension is cut through the cutter 5 located between the chuck 3 and the drum 7, the outer end 1a of the product 100 rebounds and cuts the wire rod 1 under tension, as shown in FIG. Disturbance occurs in the terminal 1a portion.

In addition, in the actual operation of this type of conventional equipment, the above-mentioned rebound phenomenon is caused by 20AWG (American
-wire gage (American wire number) and below.

If the outer terminal 1a of the products 100 bundled on the drum is disturbed and the terminal 1a is bitten by the binding machine and the binding machine malfunctions, the entire system including bundling and discharge may be damaged. In order to prevent the above-mentioned troubles, in the past, the products 1 bundled into the drum 7 had to be stopped, resulting in a decrease in operating efficiency.
A person was assigned exclusively to repair the disturbances in the outer terminal 1a of the 00.

The present invention has been devised in consideration of the above points, and its purpose is to prevent the outer end portion of the bundled product from rebounding when cutting the wire material to be bundled. Therefore, during the bundling work that follows the bundling work, troubles caused by the bundling machine biting the outer ends of the products can be prevented. It is an object of the present invention to provide an improved automatic bundling device that does not require the exclusive assignment of personnel to correct disturbances in the outer terminal portion of products.

[Summary of the idea]

In order to achieve the above object, the present invention includes a tensioning machine that applies a constant tension to the running wire, a bundling drum that bundles the running wire, and a bundling drum that cuts the running wire that has been bundled to a specified length. In an automatic bundling device comprising a cutter and a chuck that grips a part of the wire stretched between a bundling drum and a tensioning machine prior to cutting the running wire, at least one of the chuck and the bundling drum It is characterized in that either one of the wire rods is equipped with a wire tension removing mechanism that loosens the tension wire stretched between the chuck and the bundle drum before cutting the wire.

〔Example〕

Hereinafter, the present invention will be explained based on FIG. 1. The figure is a perspective view of the main parts showing an embodiment of the automatic bundling device according to the present invention, and the same reference numerals as in FIG. 2 indicate the same parts. 3 indicates a wire rod to be bundled, and 3 indicates a chuck. A slide base 8 is attached to the chuck 3 for moving the chuck 3 in the front and back direction (running direction of the wire rod 1) by an air cylinder 9.

In the above configuration, the running wire 1, which is constantly given a constant tension by a tensioner (not shown), is bundled onto a drum via a guide pipe and a driver guide roller, as in the conventional case.

When the drum bundles the wire rod 1 of a specified length, the running of the wire rod 1 is automatically stopped, and then the chuck 3 grips a part of the wire rod 1 and is positioned between the chuck 3 and the bundle collecting drum. A cutter cuts the wire rod 1, and the bundled products are discharged and bundled continuously and automatically. In the embodiment shown in FIG. Since a slide base 8 is attached to move the chuck 3 in the running direction of the wire rod 1, before the cutter cuts the wire rod 1, the air cylinder 9 is activated to move the chuck 3 in the direction of the bundle collecting drum. , the wire 1 between the chuck 3 and the bundle drum, which had been under tension, becomes loose.

Therefore, in this state, if the wire rod 1 is cut by the cutter located between the chuck 3 and the bundling drum, the outer end portion of the product bundled on the drum will bounce back and cause disturbance to the end portion. Problems that occur can be eliminated.

It has been confirmed through experiments that a short distance of about 20 mm is sufficient for moving the chuck 3 in the direction of the bundle drum before cutting the wire rod 1.

Further, the driving source for moving the chuck 3 in the running direction of the wire rod 1 may be, for example, a solenoid, a motor, etc., instead of the air cylinder 9 shown in the illustrated embodiment.

Furthermore, in the illustrated embodiment, before cutting the wire rod 1 with the cutter, the chuck 3 is moved in the direction of the bundle-taking drum to loosen the wire rod 1 between the chuck 3 and the bundle-taking drum. However, instead of this, the same effect can be obtained by equipping the bundle drum with a reversing mechanism, or by providing the bundle drum with a slide base that reciprocates the drum in the direction of the tensioner. can be obtained.

[Effect of idea]

The present invention is as described above, and as is clear from the explanation of the illustrated embodiments, according to the present invention, when cutting the wire material to be bundled, the outer end portion of the bundled product bounces back and There is no disturbance in the end portion, and therefore, during the bundling work that follows the bundling work, troubles caused by the bundling machine biting the outer ends of the products can be prevented. It is possible to obtain an improved automatic bundling device that does not require dedicated personnel to correct disturbances in the outer end portions of finished products.

[Brief explanation of drawings]

Fig. 1 is a perspective view of the main parts of an embodiment of an automatic bundling device according to the present invention, Fig. 2 is an explanatory diagram of the entire bundling line of a conventional automatic bundling device, and Fig. 3 is a perspective view of the main parts of an automatic bundling device according to the present invention. FIG. 2 is a plan view of a state in which the outer end of the product bundled using the conventional device shown in the figure is disordered; 1... wire rod, 2... tension machine, 3... chuck,
4... Guide pipe, 5... Cutter, 6... Troversa guide roller, 7... Bundling drum, 8...
Slide base, 9...Air cylinder, 11
0...Bundle product.

Claims (1)

[Scope of utility model registration request] A tensioner applies a constant tension to the running wire; a bundle drum that bundles the running wire; a cutter that cuts the running wire bundled into a specified length on the bundling drum; In an automatic bundling device comprising a chuck for gripping a part of the wire stretched between a picking drum and a tensioning machine, a chuck is installed on at least one of the chuck and the bundling drum prior to cutting the wire. An automatic bundling device characterized in that it is equipped with a wire tension removal mechanism that loosens the tension wire stretched between the wire rod and the bundling drum.