JPS6328871Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is designed to attach a cord cut to a predetermined length, especially a parallel two-core cord, to a cord cutter member that is integrally formed with an insulator and a plug blade. The present invention relates to a cord feeding device that feeds long cords.

Conventionally, when fixing a cord cut to a predetermined length to a plug blade member that has an insulator and a plug blade integrally molded in advance, the cord wound around a bobbin is fed and cut by a predetermined length, and the cut cord is cut into a proper length. A cord of a predetermined length is manufactured from which the sheath is removed in advance using a device that removes the sheath of a length, and the cord is fixed to the blade member by crimping, soldering, or the like. An automatic cord fixing device that automatically performs this has been proposed, and will be explained based on FIGS. 1 and 2.

As shown in FIGS. 1 and 2, there is an endless cord conveying device 3 in which cord supports 2 that hold a predetermined length of cord 1 are attached at equal intervals, and a blade support that supports a blade member 4. 5 are installed at equal intervals with the cord support 2, and are installed parallel to and on the same horizontal plane.
6 are synchronously operated intermittently.

A code sending mechanism 7 for feeding the long cord 1a to the cord support 2 is provided in the vicinity of the cord conveying device 3, and the cord 1a fed from the code feeding mechanism 7 is sent to the cord support 2. When the cord 1a is clamped, a cord cutting mechanism 8 provided midway between the cord feeding mechanism 7 and the cord conveying device 3 cuts the cord 1a.
was disconnected. The cord support 2 holding the cut cord 1 is conveyed by the cord conveying device 3 to a sheathing removal mechanism 9 provided behind the cord cutting mechanism 8, and a predetermined length of the insulation sheath of the cord 1 is peeled off.
Then, the core wire of the cord 1 from which the sheath has been removed is twisted by a wire twisting mechanism 10 provided behind the sheath removal mechanism 9 so as not to come undone. Further, the blade member 4 is placed in a position close to the blade conveyor 6 using a blade support 5.
A blade delivery mechanism 11 is provided to send out and support the blade. The blade member 4 includes a pair of blades 4a, 4a.
The blades are fixed to the insulator 4b so that the blades are parallel to each other, and each blade is supplied to the blade delivery mechanism 11 by a vibrator 12 or the like.

The cord 1 from which the sheath has been removed and is held between the cord supports 2 and the blade member 4 supported by the blade support 5 are provided behind the sheath removal mechanism 9 by the respective conveying devices 3 and 6. The cord 1 is then conveyed to the cord insertion mechanism 13, where the cord 1 is inserted into the hole formed in the blade 4b of the blade member 4. The plug blade member 4 into which the cord 1 has been inserted is crimped and fixed to be integrated with the cord 1 by a crimping mechanism 14 provided at the rear of the cord insertion mechanism 13. The blade member 4 to which the cord 1 is fixed in this manner is separated from the blade support 5 before reaching the cord detachment mechanism 15, and then the cord 1 is removed from the cord clamp holder 2 by the cord detachment mechanism 15.

In the automatic cord fixing device as described above, when the cord sending mechanism 7 feeds the cord 1 to the cord support 2, when the cord support 2 reaches the position of the code sending mechanism 7, the cord support 2 is opened. Since the cord is fed to the open support portion, the longer the cord to be fed, the longer the feeding time will be, and the longer the feeding time will be, the longer the cord 1 and the blade member 4 will stick together. There is a problem that the cycle time is increased and production efficiency cannot be improved.

This invention solves the above problems, and its purpose is to provide a cord feeding device that can feed the cord regardless of the position of the cord support and improve production efficiency. It is in.

This invention will be described below based on embodiments shown in the accompanying drawings.

As shown in FIGS. 3 to 5, a cord feeding mechanism is provided on the side of the cord conveying device 3 and feeds out the long cord 1a wound around a bobbin 21 etc. intermittently by a set length via a cord cutting mechanism 20. 22 are provided. This cord feeding mechanism 20 includes a pair of rollers 23a and 23b that pinch and feed the cord 1a.
It is equipped with a guide plate 24 for a cord feeding mechanism that guides the cord 1a to the rollers 23a, 23b, and when the rollers 23a, 23b are rotated by a stepping motor 25, the cord 1a is guided to the rollers 23a, 23b.
23b and feeds out a length proportional to the number of rotations of the stepping motor 25. Therefore, by controlling the amount of rotation of the stepping motor 25, a set length of cord can be fed to the cord cutting mechanism 20.

The cord cutting mechanism 20 provided between the cord feeding mechanism 22 and the cord conveying device 3 is connected to a fixed plate 2 which is immovably attached to the automatic cord fixing device main body.
The cord guide plate 28 is fixed to the fixing plate 26 in parallel with the cutting cylinder 27 which guides the cord 1a to the cord conveying device 3. Rod 27 of the above cylinder 27
At the tip of a, there is a first cord holder 29a and a cutter 30 that move up and down between the fixed plate 26 and the cord guide plate 28.
is fixed, and the first cord holder 29a and the second cord holder 29b provided below hold the cord 1a.
The cutter 30 moves downward to cut the cord 1a into the cord 1 of a predetermined length. Further, the cord holding plate 31, which is interlocked with the rod 27a and located above the cord conveying device 3, is connected to the fixed plate 2.
An opening/closing member 3 is provided below the cord holding plate 31 to open and close the space between the fixed plate 26 and the cord guide plate 28.
2 is provided. The opening/closing member 32 is connected to the fixed plate 2
6 and is inserted through a shaft 33 that protrudes in the moving direction of the cord conveying device 3, and is biased by a spring 34 so as to be in a closed state. A control plate 35 fixed to the cord holding plate 31 is provided between the opening/closing member 32 and the fixed plate 26, and the tip of the control plate 35 is formed into a wedge shape. Therefore, when the cord holding plate 31 is moved downward together with the rod 27a of the cylinder 27, the opening/closing member 32 is moved by the control plate 35 in a direction opposite to the force of the spring 34 and is opened, so that the cord 1a is Pressing plate 31
is moved to the cord support 36 by.
Furthermore, below the cord holding plate 31, a cord support opening/closing mechanism 37 is provided which opens the cord support 36 that has been moved below the cord holding plate 31 to support the cord. The first and second cord holders 29a and 29b and the cord holding plate 31 are as follows:
The guide plates 29c, 29d, and 31a are inserted into the guide plates 29c, 29d, and 31a so as to be movable up and down, respectively, and the second holding body 29
b and the cord holding plate 31 are equipped with springs 29 to protect the equipment in the event of an inconvenience such as cord feeding.
c, 31b are provided.

The cord support 36 is supported by a shaft 39 inserted through two adjacent cylindrical shafts 38, 38 of the cord conveying device 3, as shown in FIGS. 6 to 8.
An upright piece 40a is provided at the end of the cord conveying device 3 in the moving direction.
A cord support substrate 40 formed with a
an inverted U-shaped cord support guide plate 42 fixed to the substrate 40 at a predetermined distance from the substrate 40, and forming a space 41 perpendicular to the upright piece 40a with the substrate 40;
A pin 43a is slidably inserted into the space 41 and protrudes from an elongated hole 40b at the center of the board 40, and a cord support groove 43b is provided at the opposite lower part of the upright piece 40a. 1
A movable plate 43 is provided between the guide plate 42 and the movable plate 43.
By attaching a spring 44 that presses the cord 1 toward the upright piece 40a, the movable plate 43 is urged against the upright piece 40a to support the cord 1, and the movable plate 43 is separated from the upright piece 40a by operating the pin 43a. Accordingly, the cord 1 is inserted and removed.

Further, as shown in FIG. 9, the cord support opening/closing mechanism 37 has a sliding base 45 fixed to the automatic cord fixing device, and a support opening/closing cylinder 46 is fixed to the rod 46a of the cylinder 46. Sliding table 4
A sliding body 47 that slides on the 5 is fixed. A pin pressing body 49 biased upward by a spring 48 is attached to the sliding body 47 so as to be movable up and down.
The pin pressing body 49 is a pin 43a of the cord support 36.
come into contact with. Since the tip of the pin pressing body 49 is inclined on the upstream side and vertical on the downstream side, when the cord support 36 moves from upstream to downstream together with the cord conveying device 3, a downward force is applied to the pin pressing body 49. to move the pin pressing body 49 down, and while it is in contact with the side of the pin 43a, the pin pressing body 49 is moved.
When the pin 43a is moved downstream together with the sliding body 47 by the rod 46a, the pin 43a moves together with the pin pressing body 49, and the cord support holding plate 43 is moved downstream by the upright piece 40.
The cord 1 is supported by the upright piece 40a and the holding plate 43.

In the above embodiment, instead of the control plate 35 for moving the opening/closing member 32, a wire is used to connect the end of the opening/closing member 32 and the rod 27a, and when the rod 27a is lowered, the opening/closing member 32 is moved to the guide plate 27a.
The wire may be stretched so that the opening/closing member 32 approaches the guide plate 28 when it is moved away from the guide plate 8 and raised. In addition to the wire, the control plate 35 may be any control mechanism that moves the opening/closing member 32 so that the space between the guide plates is opened when the rod is lowered, and the space between the guide plates is closed when the rod is raised. In addition, in FIG. 3, S ₁ and S ₂ are the rods 27a of the cylinder 27.
Detects the raised and lowered positions of the cylinder 27.
This is a detector that stops the

This invention has the above configuration, and after controlling the rotation of the motor 25 to feed a set length of cord by the rollers 23a and 23b, regardless of the position of the cord support 2, the cord support 36 is moved to a predetermined position. When the cylinder 2 reaches the position (below the cord holding plate 31),
7 to lower the rod 27a. When the rod 27a descends, the cord 1a is held by the first and second cord holders 29a and 29b, and the cord 1a is cut by the cutter 30. Along with this, the cord holding plate 31 is also lowered, and the opening/closing member 32 is opened by the control plate 35, so that the cord 1a, which has descended while being held down by the cord holding plate 31, passes between the fixed plate 26 and the guide plate 28. It passes through and reaches the cord support 36. The cord 1a is then held between the cord supports 36.

As described above, this invention is provided with an opening/closing member below the cord holding plate that can open and close between the guide plates, so that the automatic cord fixing device can feed the cord regardless of the position of the cord support, and When the cord reaches a predetermined position, the rod can be lowered and the cord pressing plate can press the cord against the cord support, which has the advantage of improving the production efficiency of the automatic cord fixing device.

[Brief explanation of the drawing]

Fig. 1 is a plan view schematically showing an example of a device for fixing a blade member to a cord, Fig. 2 is a front view of Fig. 1, Fig. 3 is a front view showing an example of this invention, Fig. 4
The figure is a side view of Figure 3, Figure 5 is a plan view of Figure 3,
FIG. 6 is a perspective view showing an example of a cord support;
6 is a front sectional view of FIG. 6, FIG. 8 is a side sectional view of FIG. 6, and FIG. 9 is a front view showing an example of a cord support opening/closing mechanism. DESCRIPTION OF SYMBOLS 1, 1a... Cord, 2, 36... Cord support, 3, 6... Conveyance device, 4... Bungler member, 20
... Cord cutting mechanism, 22 ... Cord feeding mechanism,
23a, 23b...Roller, 25...Motor, 2
6...Fixing plate, 27...Cylinder, 27a...Rod, 28...Guide plate, 29a, 29b...Cord holder, 30...Cut, 31...Cord holding plate, 32...Opening/closing member, 35 ...control board.

Claims (1)

[Scope of utility model registration request] It consists of a cutting mechanism that cuts the fed cord, and a cord feeding mechanism that feeds the cord a predetermined length to the cutting mechanism, and the cord feeding mechanism includes a pair of rollers that pinch the cord and feed it to the cutting mechanism. and a motor that controls the rotation of the roller, and the cutting mechanism includes a pair of guide plates that guide the cord fed from the roller, and a first guide plate that is provided on a vertically movable rod and that moves vertically between the guide plates. A cord holder and a cutter, a second cord holder which is provided facing the first cord holder and which holds the cord between the first cord holder and the first cord holder; A cord holding plate that moves up and down between the guide plates, an opening/closing member that is provided below the cord holding plate and below the guide plate and opens and closes between the guide plates, and is connected to a rod and opens the space between the guide plates when the rod descends. and a control mechanism that moves the opening/closing member so as to close the space between the guide plates when raised.