JPH0349815A - Automatic wire cutting and peeling device - Google Patents

Abstract

PURPOSE:To cut a covered wire with its spreading straight and to prevent the terminals calked at both ends being disconnected by arranging 1st, 2nd cutting edges and a notching edge diagonally and sliding the 1st cutting edge and notching edge, the 2nd cutting edge and notching edge. CONSTITUTION:A cutting edge 5 and notching edge 6 are moved in -Y axial direction, a notching edge 8 and cutting edge 7 in +Y axial direction, the cutting edges 5, 7 are crossed on an X axis and the tip of a wire 3 is cut. Rollers 2a, 2b are then rotated positively, the wire 3 is fed in the peeling length, the rollers 2a, 2b are stopped, the cutting edge 5 and notching edge 6 are moved in +Y axial direction, the notching edge 8 and cutting edge 7 in -Y axial direction, the notching edges 8, 6 notch the covering of the wire 3, the wire 3 is drawn back with the reverse rotation of the rollers 2a, 2b and the peeling of the tip part is performed. Rollers 2a, 2b, 4a, 4b are then rotated positively, the wire 3 is fed in in the work length, the rollers 2a, 2b, 4a, 4b are stopped, the cutting edge 5 and notching edge 6 are moved in -Y axial direction, the notching edge 8 and cutting edge 7 in +Y axial direction, the cutting edges 5, 7 are crossed on the X axis and the wire 3 rear end part is cut.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an apparatus used for automatically cutting and stripping coated electrical wires.

(Prior art) Conventionally, as this type of device, the
The one disclosed in Japanese Patent No. 25283 is known. As shown in FIG. 13, this conventional device includes a pair of rollers 51a for feeding and pulling back the covered electric wire 50 by forward and reverse rotation.

51b, and a pair of rollers 52a52b for drawing out and feeding back the covered electric wire 50 by rotating in forward and reverse directions.
is provided between these two types of roller groups, and has a V at the tip.
A fixed blade 53 having a letter-shaped blade portion 53a, and the fixed blade 53
a movable blade 54 which is disposed opposite to the movable blade 54 and has a V-shaped blade portion 54a at its tip; a first transfer pipe 55 for guiding the covering vA50 between the pair of rollers 51a and 51b; A guide tube 56 for guiding the electric wire 50 between the fixed blade 53 and the movable blade 54, a second transfer tube 57 for guiding the covered electric wire 50 between the pair of rollers 52a, 52b, and each mechanism. Operation control computer (
The roller group (51a, 5
By appropriately rotating the wires 1b, 52a, and 52b in forward and reverse directions, the pair of blades cuts the wire 50 and peels the coating.

In addition, in the device configured in this way, the coating it
When feeding and pulling back the wire 50, the covered wire 50 passes through the center of the fixed blade 53 and the movable blade 54, and when cutting and cutting the covered wire 50, the wire 50 passes through the blade portion 53a of the fixed blade 53. It is necessary to make contact with the guide tube 56, and also to prevent the rear end of the covered wire 50 from hitting the guide tube 56 when feeding the covered wire 50 back.
To solve this problem, a mechanism disclosed in Japanese Unexamined Patent Publication No. 62-210817 is used to make the guide tube 56 horizontally tiltable (arrow A in FIG. 13).

(Problem to be Solved by the Invention) However, in the conventional device described above, by tilting the guide tube 56 toward the fixed blade 53 and moving the movable blade 54 toward the fixed blade 53, the coated T1 wire is removed. Since the wire 50 is cut in a bent state (see FIG. 14), the wire 50 is cut with the sheath bent.
Both ends of 0 will not be cut vertically but diagonally. As a result, when a terminal is caulked and fixed to a coated wire that has been stripped, there is a problem that the terminal may come off. In addition, the guide tube 56
During this tilting operation, the roller group (51a, 51b, 52g
, 52b) and the movable cutting blade 54 are in a stopped state, there is a problem that the processing speed is reduced accordingly.

(Means for Solving the Problems) The present invention aims to solve the above-mentioned problems of the prior art, and as a means thereof, cutting and incision mechanisms are arranged diagonally opposite each other. The blade is composed of a first dedicated cutting blade and a second dedicated cutting blade, and a first dedicated cutting blade and a second dedicated cutting blade, which are also arranged diagonally opposite each other. The cutting blade and the first cutting blade are brought into sliding contact, and the second cutting blade and the second cutting blade are brought into sliding contact.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

FIG. 1 is a perspective view showing the main parts of the cutting and incision mechanism, FIG. 2 is a sectional view taken along the line IT in FIG. 1, FIG. 3 is a plan view of the automatic wire cutting and stripping device according to the present invention, and FIG. 12 through 12 are plan views showing the cutting and stripping operations of the covered electric wire.

As shown in Figure 3, the mounting plate 1 has an X on the left side.
A pair of rollers ``la'' and ``2b'' are provided with the shaft in between, and the coated FI wire 3 can be fed in and pulled back by rotating the pair of rollers 2a and 2b in forward and reverse directions. Furthermore, a pair of rollers 4a and 4b are provided on the right side of the mounting plate 1, sandwiching the X-axis therebetween, and by rotating the 21-pair of rollers 4a and 4b in forward and reverse directions, the covered electric wire 3 can be pulled out. These roller groups (2a, 2b, 4a, 4b) are
It is rotated by a roller drive motor (not shown), and the roller drive motor is controlled by an operation control computer (not shown).

As shown in FIGS. 1 to 3, the mounting plate 1 includes:
A cutting and cutting mechanism A is installed between the two types of roller groups, and the cutting and cutting mechanism A cuts and cuts the covered electric wire 3. This cutting and incision mechanism A includes a first dedicated cutting blade 5. located on the +Y axis. A first dedicated cutting blade 8 and a second dedicated cutting blade 7 located on the -Y axis. It is composed of a second dedicated cutting blade 6. Here, the first dedicated cutting blade 5 and the second dedicated cutting blade 6 are integrated by connecting them by a plate 58 with the V-shaped blade portions 5a facing each other ( Hereinafter, this integrated unit will be referred to as the "first movable plate 9"), and similarly, the second cutting blade 7
and the first dedicated cutting blade 8 are V-shaped blade portions 7a, 8a.
The first movable plate 10 is integrated by being connected by a plate 58 in a state in which the first
By moving the movable plate 9 and the second movable plate 10 in mutually opposite directions on the Y-axis, the blade portion 5a of the first cutting blade 5 and the blade portion 7a of the second cutting blade 7 are separated. If they intersect on the X-axis, the insulated wire 3 can be cut, while the blade portion 8a of the first cutting blade 8 and the blade portion 6a of the second cutting blade 6 cross on the X-axis. When approached, a cut can be made into the sheath of the covered wire 3. In this way, the insulated wire 3 can be cut with the insulated wire 3 stretched straight on the There will be no problems such as the terminals caulked to both ends of the terminal coming off.

The first movable plate 9 has sliding plates 11 and 12 at both ends thereof.
is fixed to the second movable plate 10, and sliding plates 13 and 14 are fixed to both ends of the second movable plate 10.

The sliding plates 11 and 13 are provided with racks 11a and 13a on their opposing surfaces, and a pinion 15a is mounted between the ranks 11a and 13a.
, 13a are interposed in mesh with each other. Similarly, racks 12a and 14a are provided on opposing surfaces of the sliding plate 12 and the sliding plate 14, and 8 racks 1
A pinion 16a is connected between racks 12a and 14a.
It is interposed in a state in which it meshes with 4a. Said pinion 1
5a, 16a are each integrated with a gear 15.16, which is connected via tinning belts 17, 18 to a motor 19 for driving the cutting and notching mechanism. For this reason, the motor 1 for driving the cutting and notching mechanism
When 9 is rotated, this rotational force is applied to the tinning belt 17.
．． Pinion 15a integrated with gear 15.16 via 18
, 16a, this pinion 15a
, 16a can cause the sliding plates 11.12 and 13.14 to slide in opposite directions through the ranks lla, 13a and the racks 12a, 14a. The first movable plate 9 and the second movable plate 10 can be moved in opposite directions to each other as described above.

The cutting and incision mechanism drive motor 19 is controlled by the operation control computer.

Further, as shown in FIG. 3, the pair of rollers 2a,'
A guide tube 21 is disposed on the X-axis between lb and the cutting and notching mechanism A, and the covered electric wire 3 is guided to the cutting and notching mechanism A through the guide tube 21. Here, the guide tube 21 is formed by a known means (Japanese Patent Application Laid-Open No.
No. 210817), it can be tilted horizontally (as indicated by the arrow in Figure 3). Note that this guide tube 21 is controlled by the operation control computer.

Further, a transfer tube 20 is fixed on the X-axis near the left side of the rollers 2a, 2b, and the coating wire 3 is guided through the transfer tube 20 between the rollers 2a, 2b. Furthermore, the roller 4a.

A transfer tube 22 is fixed on the X-axis near the left side of 4b, and the covered electric wire 3 is passed through the transfer tube 22 to the roller 4.
It is designed to lead between a and 4b.

Next, the operation of this embodiment will be explained.

First, before cutting and peeling the coating tm3, the following operations are performed.

That is, the feed switch of the operation box (not shown) is turned on, the rollers 2a and 2b are rotated in the normal direction, and the tip of the coated wire 3 unwound from the winding drum (not shown) is inserted into the transfer pipe 20. The rollers 2a, 2 which are rotating
Supply between b. Then, the covered wire 3 is inserted into the guide tube 21, and the first cutting blade 5. is positioned on the +YX axis. A first cutting blade 8 and a second cutting blade 7 located on the -Y axis. It is moved between the blade 6 and the second cutting blade 6. In this way, the tip of the insulated wire 3 is connected to the blade part 5a of the first cutting blade 5, the blade part 8a of the first cutting blade 8, the blade part 7a of the second cutting blade 7, and the second blade part 5a of the first cutting blade 5. When the cutting blade 6 is brought into a state of slightly protruding from the gap between the cutting blade 6 and the blade portion 6a, the feed switch is automatically turned off and the roller 2a is turned off.

2b stops (see Figure 3).

After inserting the covered wire 3 as described above, when the start switch of the operation box is turned on, the covered wire 3 is automatically cut and stripped in the following steps under the control of the operation control computer. .

First, the first dedicated cutting blade 5 and the second dedicated cutting blade 6 move in the −Y-axis direction, and the first dedicated cutting blade 8 and the second dedicated cutting blade 7 move in the +Y-axis direction, respectively. When the first cutting blade 5 and the second cutting blade 7 intersect on the X axis, the tip of the covered wire 3 is cut (see Fig. 4).
First cutting blade 5. Second cutting blade 6. The first cutting blade 8 and the second cutting blade 7 are immediately returned to their original positions.Then, the rollers 2a and 2b are rotated in the normal direction, and the coating t&13 is fed by a predetermined path M (stripping length). (See Fig. 5), and the M electric wire 3 is routed along a predetermined path #(
When the peeling length is fed in, the roller 'la, 2
b is stopped 0 Next, the first dedicated cutting blade 5 and the second dedicated cutting blade 6 are moved in the +Y-axis direction, and the first dedicated cutting blade 8 and the second dedicated cutting blade 7 are moved in the -Y-axis direction. move in each direction,
The first cutting blade 8 and the second cutting blade 6 move to a position where the coating is cut into the coating of the wire 3 and are stopped (see FIG. 6). In this state, the roller 2a,
2b is reversed and the covered electric wire vA3 is pulled back, thereby stripping the tip of the covered electric wire 3 (7th
(see figure). When the peeling of the tip of the coated voltage vA3 is completed, the first cutting blade 5° and the second cutting blade 6. The first cutting blade 8 and the second cutting blade 7 are immediately returned to their original positions.

Next, the rollers 2a, 2b, 4a, and 4b are rotated in the normal direction, thereby feeding the sheath 1tvA3 a predetermined path j11 (processing length) (see FIG. 8), and the sheathed wire 3 is fed through the predetermined path 11i! ! When the rollers 2a, 2b, 4a, and 4b are fed by (machining length), the rollers 2a, 2b, 4a, and 4b stop.Next, the first cutting blade 5 and the second cutting blade 6 move in the -Y axis direction. The first cutting blade 8 and the second cutting blade 7 move in the +Y-axis direction, and the first cutting blade 5 and the second cutting blade 7 intersect on the X-axis. The rear end of the covered wire 3 is cut off (see Fig. 9) (hereinafter, the wire material cut into a predetermined length will be referred to as "processed wire material 3aj").
), the first cutting blade 5. Second cutting blade 6. The first cutting blade 8 and the second cutting blade 7 are immediately returned to their original positions.

Next, the guide tube 21 is shifted from the X-axis and prepared for feeding back the processed wire 3a. And the roller 4a
, 4b are reversed and the processed wire 3a is sent back by a predetermined distance (stripping length) (see Fig. 10) Next, the first cutting blade 5 and the second cutting blade 6 are moved along the +Y axis. in the direction of
The first cutting blade 8 and the second cutting blade 7 move in the −Y-axis direction, and the first cutting blade 8 and the second cutting blade 7 move in the −Y-axis direction.
The dedicated cutting blade 6 is moved to a position where it cuts into the coating of the processed wire 3a and is stopped (see FIG. 11).
In this state, the rollers 4a and 4b are rotated normally to pull out the processed wire 3a, thereby stripping the rear end of the processed wire 3a (see FIG. 12). In this way, the east inner tube 21 is tilted only when processing the rear end of the processed wire 3a, and there is no need to tilt it as frequently as in the past, so other members such as the rollers 2a, 2b, etc. The stop time can be significantly reduced compared to the conventional method, and as a result, the processing speed can be improved.

When the processing of one piece of processed wire 3a is completed as described above, the guide vibrator 21 is returned to its original position (on the X axis), and the roller 2a is returned to its original position (on the X axis).

2b is rotated in the normal direction, and processing proceeds to the processed wire rod 3a with the second grain (see FIG. 3).

(Effects of the Invention) In the present invention, by configuring the automatic wire cutting and stripping device as described above, it is possible to cut the covered IT wire while the covered wire is stretched straight. ! Both ends of the wire are always cut in a perpendicular state, and this has an excellent effect in that problems such as terminals crimped and fixed to both ends of the processed covered wire do not come off. In addition, the guide tube only needs to be tilted when processing the rear end of the RgI electric wire, and there is no need to tilt it as frequently as in the past, so the stopping time of other members such as rollers is reduced compared to the past. can be significantly reduced,
As a result, it has the excellent effect of improving processing speed.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the main parts of the cutting and incision mechanism, FIG. 2 is a sectional view taken along line I-1 in FIG. 1, FIG. 3 is a plan view of the automatic wire cutting and stripping device according to the present invention, and FIG. Figures 1 to 12 are plan views showing the cutting and stripping operations of the covered electric wire;
FIGS. 13 and 14 are plan views showing the prior art. A...Cutting and incision mechanism 5...First cutting blade 6...Second cutting blade 7...Second cutting blade 8...First blade Special cutting blades 11, 12, 13, 14...Sliding plates 11a, 12a
, 13a, 14a... Rack 15, 16... Gear 15a, 16a... Binion 17, 18
... Tinning belt 19 ... Motor for driving cutting and incision mechanism Fig. 10 Fig. 13 Fig. 14

Claims (1)

[Claims] (1) A feeding and pulling mechanism equipped with a pair of rollers for feeding and pulling back the covered wire through forward and reverse rotation, and a pair of rollers for pulling out and feeding back the covered wire through forward and reverse rotation. a drawer and feed-back mechanism installed between the two mechanisms,
An automatic wire cutting and stripping device comprising a cutting and cutting mechanism for cutting the covered wire and notching the coating, and an operation control mechanism equipped with a computer for controlling the operation of each of the mechanisms, wherein the cutting and cutting mechanism includes: Consisting of a first dedicated cutting blade and a second dedicated cutting blade that are arranged diagonally opposite each other, and a first dedicated cutting blade and a second dedicated cutting blade that are also arranged diagonally opposite each other. The automatic electric wire is characterized in that the first blade exclusively for cutting and the first blade exclusively for cutting are in sliding contact, and the second blade exclusively for cutting and the second blade exclusively for cutting are in sliding contact. Cutting and peeling equipment.