JPS60204206A - Automatic wire cutting and exfoliating machine - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to an automatic cutting and stripping device for coated wires used in various electrical devices.

BACKGROUND OF THE INVENTION In general, coated wires for wiring used in electronic and electrical products are used after the following processing. That is, Fig. 1 (a
), the length Ll and thickness of the covered wire 1 are 2.
and the exposed length of the core wire 2 and the stripped length of the sheathing 3) L3, 14
will be processed to suit each designated jurisdiction. Also, the first
Length L5 when the end portion 3a of the target 'ff13 is left without being completely removed as shown in Figure (b). L6 may also be specified.

In recent years, as the demand for electronic and electrical products has increased and diversified, the above-mentioned equipment for cutting and stripping the covered wire 1 has been used to clamp and convey the covered wire 1 to the Jζ guide support rod 4, which is not shown in FIG. The member 5.6 is attached, while the cutting member 7 and the coating cutting member 8.9 are provided corresponding to the coating electric current [ill]. There is one in which the cutting members 8 and 9 are set in advance so that they operate based on an operation command signal from an IC computer. However, in this automatic wire cutting/stripping device, when the length Ll of the covered wire 1 becomes long, it is necessary to reciprocate the clamp conveying member 5.6 multiple times, which not only reduces work efficiency but also makes the structure complicated. The problem was that the device became larger.

Purpose of the Invention The present invention has been made in order to eliminate the above-mentioned conventional defects, and its purpose is to simplify the structure, reduce size and weight, and improve work efficiency. The purpose of the present invention is to provide an automatic wire cutting and stripping device that can be used.

Structure of the Invention In order to achieve the above-mentioned object, the present invention provides a feeding and pulling mechanism that includes a pair of rollers for feeding and pulling back a covered electric wire by forward and reverse rotation, and a mechanism for pulling out and feeding a covered electric wire by forward and reverse rotation. a pull-out/send-back mechanism equipped with a pull-out/send-back roller for returning; a cutting/cutting mechanism installed between the two mechanisms for cutting the coated wire and cutting the sheath; It consists of an operation control mechanism equipped with a combination coater for controlling the operation of each mechanism.

EXAMPLE Below, an example embodying the present invention is shown in FIGS. 3 to 9 (
The explanation will be based on a) to ([).

The wire cutting/stripping device of this embodiment generally includes a feeding/pull-back mechanism 12 comprising a pair of rollers 20 and 21 for feeding and pulling back the coated wire 1 by forward and reverse rotation, and a feeding/pull-back mechanism 12 which also rotates in the forward and reverse directions. A pair of rollers 20' and 21 for pulling out and feeding back the covered wire 1.
'; a cutting/cutting mechanism 44 installed between the two mechanisms 12 and 43 for cutting the coated wire 1 and cutting the sheath 3; 43 and 44, and an operation control mechanism 73 equipped with an operation control computer.

Therefore, among the above-mentioned mechanisms, feeding and
The pull-back mechanism 12 will be explained based on FIGS. 3 to 6.
Then, a pair of mounting plates 13 are erected and fixed on the upper surface of the horizontal support plate 11 in parallel with each other at a constant interval. A pair of upper and lower bearings 14 and 15 are attached to the outer surface of the mounting plate 13, one end of the upper bearing is supported by a support shaft 16 so as to be rotatable in the vertical direction, and both ends of the lower bearing 15 are supported by bolts. 1
7 (= fixed to the J plate 13. The bearing 1
4.15, a pair of upper and lower rollers 20.21 is supported via a rotating shaft 18.19 so as to be actively rotatable. Roughly', a movable support shaft 22 is supported through the other end of the bearing 14, and a coil spring is installed between the support shaft 22 and a mounting bracket 23 hung between the upper end of the mounting plate 13. 24 is interposed to push the upper roller 20 against the lower roller 21. Note that an operating knob 25 is attached to the mounting bracket 23 so that the elasticity of the coil spring 24 can be adjusted. Further, a lifting lever 2 for lifting the movable support shaft 22 is rotatably supported on the mounting plate 13 by a support pin 26.

Then, when the lifting lever 27 is rotated in the direction of the arrow in FIG.
elasticity (= being able to resist and be lifted upwards)

As shown in FIG. 4, a pulse motor 28 is fixedly installed on the upper surface of the horizontal support plate 11, and a drive sprocket wheel 30.31 is fitted on its output shaft 29, while a drive sprocket wheel 30.31 is fitted on the rotation shaft 18.19. A driven sprocket wheel 32, 33 is fitted, and a chain 34 is attached to both sprocket wheels 30, 32. Moreover, the horizontal support a811
A bracket 35 stands 898 on the upper surface, and idler rollers 36 and 37 are rotatably supported at two positions above and below the bracket 35, and both idler rollers 36, 37 and the driving and driven sprocket wheels 31 and 33 are connected to each other. When the chain 38 is hung as shown in FIG. 6 and the output shaft 29 of the motor 28 is rotated clockwise in FIG. 6, the upper roller 20 is rotated in the same direction and the lower roller The roller 21 is rotated counterclockwise around h1.

As shown in FIG. 3, the mounting plate 1 on the rollers 20 and 21 side
A bracket 39 is supported horizontally on the outer surface of
A transfer pipe 40 is supported horizontally for guiding the material between the two. Further, a large beam portion 40a is provided in the middle portion of the transfer pipe 40, and a limit 1 to a switch LS for detecting the presence or absence of the covered electric wire 1 is attached in correspondence with the cutout portion 10a. A bracket 41 is erected on the upper surface of the horizontal support plate 11 as shown in FIG. A transfer tube 42 for transferring the covered wire 1 to the cutting/notching mechanism 44 side is supported horizontally. Next, a drawing/feeding mechanism 43 for the covered wire 1 will be explained. Since it is configured almost the same as the mechanism 12, the feeding/retracting mechanism 12
Components having the same functions as the components shown in FIG.

Next, a cutting/cutting mechanism 44 that is installed between the feeding/pull-back mechanism 12 and the pull-out/feed-back mechanism 43 and cuts the coated wire 1 and cuts the sheath 3 is shown in FIGS. This will be explained based on FIG.

As shown in FIG. 7, a support frame 45 is erected and fixed on the upper surface of the horizontal support plate 11, and a horizontally-shaped first actuating arm 47 is attached to the frame 45 on a support shaft 46. is rotatably supported. Also, the support I! A first solenoid 48 is fixedly installed on the upper surface of A11, and its movable iron core 49
A connecting link 51 is connected by a pin 50 between the lower end of the first actuating arm 47, and when the first solenoid 48 is operated and the movable iron core 49 is sucked to the left in FIG. The first actuating arm 47 is rotated about the support shaft 46 in the direction of the arrow in the figure via the link 51. Further, a horizontal fixed support arm 52 is fixed to the upper end of the support frame 45, and a coil spring 53 is hung between the tip of the support arm 52 and the tip of the horizontal portion 47a of the first actuating arm 47. The horizontal portion 47a is biased upward.

A second operating arm 55 having a horizontal shape is rotatably supported by a support shaft 54 at the upper end of the support frame 45;
The second actuating arm 55 is rotated by a coil spring 56 whose one end is fixed to the support frame 45, the other end is fixed to the second actuating arm 55, and whose middle part is wound around the support shaft 54. It is biased in the rotational direction. Further, the position of the tip of the horizontal portion 55a of the second actuating arm 55 is regulated by a stopper bolt 57 attached to the horizontal portion 47a of the first actuating arm 47. The stopper bolt 57 can be adjusted in two positions with respect to the bracket 58 and is pressed and held in a fixed position by a coil spring 59. On the other hand, an engagement pin 60 is protruded from the lower end of the vertical portion 55b of the second operating arm 55 and is movable back and forth within a guide hole 1a formed through the connecting link 51. Furthermore, a second solenoid 61 is fixedly installed on the upper surface of the first solenoid 48, and the movable iron core 62 and the second solenoid
A locking pin 63 fixed to one side of the operating arm 55 is connected by a coil spring 64 and a connecting link 65, and the hook 11 nib 63 is engaged with a guide hole 65a formed in the connecting link 65.

A holder 67 is erected on the upper surface of the horizontal support plate 11 via a mounting block 66, and a fixed cutting blade 68 is accommodated and fixed in an accommodation groove 67a formed on the negative side of the holder 67.
A V-shaped blade portion 68a is formed at the upper end of the blade 8.

A guide member 69 is fixed to one side of the holder 67, and a movable cutting blade 70 is supported between it and the boulder 67 so as to be able to slide back and forth in the vertical direction. An eggplant blade portion 70a is formed. Further, a connecting link 71 is connected by a pin 72 between the movable cutting blade 70 and the horizontal portion 55a of the second operating arm 55.

Note that shooters 83 are provided on both sides of both cutting blades 68 and 70, so that the end portion 3a of the covering 3 can be collected.

Therefore, the younger brother 1 solenoid 48 is operated and the movable iron core 4
9, when the connecting link 51 is moved to the left in FIG.
The movable cutting blade 70 is moved downward via the connecting link 71, and the blade portions 68a and 70a of both cutting blades 68 and 70 are rotated synchronously in the direction of 31 in the figure with the center being 1.
The covered electric wire' inserted between the blade portions 68a and 70'a
1 is disconnected. Furthermore, when the second solenoid 61 is operated while the first solenoid 48 is stopped, the second operating arm 55 moves around the support shaft 54 via the movable iron core 62, the coil spring 64, and the connecting link 65. When the tip of the horizontal portion 55a comes into contact with the stopper bolt 57 while being rotated clockwise in FIG. A cut is made into the covered wire 1 by the blade portion 688.7Qa.

Next, various operation signals are outputted to the above-mentioned feed/pull-back 184M12, pull-out/feed-back mechanism 43, cutting/notch mechanism 44, etc. based on preset programs, or to newly set setting signals. The operation control mechanism 73 outputs an operation signal based on the
This will be explained based on the diagram.

The pulse motor 28, 28', the first. The second solenoid 48.61 and the limit switch LS are each connected to the computer 75 via a lead wire 74. Further, an operation box 77 is connected to the computer 75 via a lead wire 76.

A length setting display 78 of a digit switch type is provided on the surface of the operation box 77 for setting and displaying the cutting length Ll of the covered electric wire 1. Further, on the right side of the length setting display 78, there is a digit switch type number setting display 79 for setting and displaying the number of cut pieces of the covered electric wire 1.
is provided. Approximately in the center of the operation box 77, there is an exposed length 13. L4 and the moving length L5 of the end portion 3a. There are provided peeling length setting indicators 80 and 81 at the leading and trailing ends for respectively displaying the setting of L6.

On the T side of the operation box 77, there is a start switch SW1,
A stop switch SW2, a sending switch SW3, and a sending back switch SW4 are provided. In addition, there is a water number display 'a82 for displaying the number of covered wires actually cut, a switch SW5 for displaying the display 82, a reset switch SW6, and a counter for counting when a cutting error occurs. A switch SW7 for subtracting the number is provided respectively.

Next, the operation of the automatic wire cutting/stripping device with the groove bottom as described above will be explained with reference to FIGS. 9(a) to 9(f).

First, before cutting and stripping the insulated wire, the insulated wire 1 is unwound from a winding drum (not shown) and the operation box 7
7, turn on the feed switch SW3, and turn the O-ra 20.
21.20-. 21 = (refer to the J: normal rotation arrow shown in FIG. 9(a)), insert the tip of the covered wire into the transfer tube 40, and insert the tip of the coated wire into the transfer tube 40,
1, the coated wire 1 is moved into the transfer collar 42, further moved between the fixed and movable cutting blades 68, 70, and further moved into the transfer tube 40- to the roller 20'.

21'. When the tip of the covered wire 1 is moved from the rollers 20, 21' to a state where it slightly protrudes by 1" as shown in FIG. 9(a), the feed switch SW
3 is turned off to avoid stopping the rollers 20.21.2CI, 21=.

In this state, operate the covered wire length setting display 78 to set and display the length 11, operate the number setting display 79 to set and display the number of wires to be cut, and then set and display the first and second stripping lengths. 3. Operate the setting displays 80 and 81 to determine the exposed length of the core wire 2 to be applied to the tip of the cut insulated wire 1. L
, 4 and the moving length L5 of the end portion 3a. L6 (in this embodiment, the case of L3=L4=L5=L6 will be described) is set and displayed. When the start switch SW1 is turned on in this state, the covered wire is automatically cut and the stripping operation is performed as follows.

That is, by operating the first solenoid 48, the movable cutting blade 70 is moved downward as shown by the two-dot chain line in FIG. is returned to the retracted position shown by the solid line. Next, rollers 20.21.20'.

27' is rotated in the normal direction, and the covered electric wire 1 and the cut covered electric wire 1' are moved from the cutting blades 68, 70 by predetermined distances L3 and 2-3 and then stopped, as shown in FIG. 9(b). In this state, the second solenoid 61 is operated and the movable cutting blade 70
is the position shown by the two-dot chain line in the figure, that is, the covering 3 of the covered wire 1.
It moves to the position where the cut is made and then stops. Then, the rollers 20, 21, 20', 21' are
When the wires 1 and 1' are reversed as shown in m, each of the covered wires 1 and 1' is sent back a predetermined length L3.
A is taken off from the tip of the covered electric wire 1, and f++ skin of jj31 is applied to the tip of the covering ff1l. Furthermore, when the stripping operation at the tip of the covered wire 1 is completed J', the movable cutting blade 70 is moved and stopped to the retracted position shown by the solid line in FIG. 9(d), and the rollers 20, 21, 20', 21' is rotated forward. Then, the covered wire 1' is moved by rollers 20=, 21
', and is dropped onto the horizontal support plate 1-1, and the tip of the covered wire 1 is supplied between the rollers 20' and 21-, and the covered wire 1 is separated from the cutting blades 68.7'O by a predetermined distance TJ. When the rollers 20 and 21.2 are fed in, the difference is 1.1.
0′.

21' is stopped. Next, as shown by the two-dot chain line in the figure, the movable cutting blade 7o is moved down to the cutting position to cut the covered electric wire '1, and then the rollers 20, 21 . 20' and 21' are respectively reversed,
The cut covered electric wire 1'' and the covered electric wire 1 are cut by the cutting blade 68.
It is sent back from 70 to predetermined distances L4 and 2L4 and stopped. In this state, the movable cutting blade 70 moves 17 times to the cutting position and stops as shown by the two-dot chain line in the same figure, and then the J: sea urchin roller 20, 21, 20' shown in FIG.
21 = is rotated in the normal direction, and the covered wires '1'' and 1 are transferred from both cutting blades 68.70 to predetermined paths 1!t2L4 and 24, and the peeled wires that fall on the rear end of the covered wires 1'' are removed. will be held. Then, during the peeling operation, the movable cutting blade 7
0 is moved from the 1' cut position shown by the two-dot chain line in the same figure to the retracted position shown by the solid line in the figure, and the tip of the gri wire 1 is inserted between the two opening cutting blades 68 and 70,
Thereafter, in accordance with the operations described above and not shown in FIGS. 9(b) to 9('), the covered electric wire I, l]@@peeling operation is performed, and a predetermined number of desired covered electric wires '1'' are processed.

Now, in the embodiment of the present invention, 1, 1--
A cutting method in which fixed and movable cutting blades 68.70 are installed between 20.21.20'- and 21=, and both cutting blades 68.70 cut the insulated wire and cut into the sheathing 3.・Since the notches (44) are installed, the structure can be simplified and the device can be made into a single unit, and the coated wire can be freely fed in and returned out by forward and reverse rotation of the rollers. It is possible to cut and peel long products, thus improving work efficiency.

Note that the present invention can also be embodied in the following embodiments.

(1) In the above embodiment, the fixed and movable cutting blades are 68° and 70°.
The function of cutting the insulated wire 1 and cutting into the sheathing 3 was added to the insulated wire 1, but instead of this, a cutting blade dedicated to cutting the insulated wire 1 and a cutting blade dedicated to cutting into the sheathing 3 were provided.
), one cutting blade and two cutting blades on both sides, and various other combinations of rollers 20.21
．． Cutting and stripping the covering mold 11 is performed between 20' and 21'.

(2) In the above embodiment, the fixed and movable cutting blades are 68° and 70°.
Although the shape of the blade is V-shaped, it can be made into an arc, a straight line, or any other shape.

(3) A plurality of pairs of rollers 20, 21, 20', 21', cutting blades 68, 70, transfer pipes 40, 42, etc. are provided so that a plurality of coated wires 1 can be cut and stripped at the same time.

By the way, in the above-mentioned cutting and stripping work, the end portion 3a of the sheathing 3 was removed from both the front and rear ends of the sheathed wire 1'', but in order to leave it, the length of movement of the end portion 3a was 5.16. It is sufficient to set the setting value of to be smaller than the setting value of the exposed length L3 and L4 of the core wire 2.Also, by setting all the first and second peeling length setting indicators 8'0.81 to 0. It is also possible to use it as a working machine that simply cuts the covered wire into a predetermined length Ll.

Effects of the Invention As described in detail above, the present invention has the effect of simplifying the structure and making it more compact, as well as improving the efficiency of one operation.

[Brief explanation of the drawing]

Figures 1 (a) and (b) are front views showing various dimensions of the cut insulated wire, Figure 2 is a road body plan view of a conventional automatic wire cutting and stripping device, and Figure 3 is the invention of the present invention. 4 is a plan view, FIG. 5 is a sectional view taken along line A-A in FIG. 4, and FIG. 6 is a road view showing the roller drive mechanism. Figure 7 is a left side view showing the cutting/cutting mechanism for the covered wire, Figure 8 is a front view showing the operation control mechanism, and Figures 9 (a) to (') are the cutting and stripping of the covered wire. It is a front view for explaining the operation. Wandering electric wire 1, core wire 2, covering 3, feeding/retracting machine 1
112, D-720, 21, 20', 21-1 transfer pipe 4
0,42.40', pull-out/send-back i mechanism 43, cutting/notching mechanism 44, fixed cutting blade 68, movable cutting blade 70,
Operation control mechanism 73, computer 75, operation box 7
7. Length setting display 78, number setting display 79, first and second stripping length setting display 80.81, covered wire length Ll, exposed core wire length L3. L4, moving length of end 3a L5.16゜Patent applicant Kodera Electronics Manufacturing Co., Ltd. Agent Patent attorney On 1) Hironobu Figure 8

Claims (1)

[Scope of Claims] 1. A feeding/pull-back mechanism equipped with a pair of rollers for feeding/pulling back a covered electric wire by forward/reverse rotation; It is equipped with a pull-out/send-back mechanism equipped with a pair of rollers, a cutting/slitting mechanism installed between the cylinder mechanism for cutting the covered wire and cutting the covering, and a computer for controlling the operation of each of the 1fi structures. An automatic wire/stripping device characterized by comprising an operation control mechanism that 2. The covered electric wire cutting/cutting mechanism includes a fixed and movable cutting blade, and a mechanism for selectively switching the movable cutting blade between two positions: a wire cutting position and a coating cutting position. An automatic wire cutting and stripping device according to claim 1, characterized in that: 3. The operation box constituting the operation control mechanism is provided with a covered wire length setting display, a number setting display, and a core wire exposed length setting display. The automatic wire cutting and stripping device described.