JP3388447B2 - Coaxial cable terminal processing machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coaxial cable terminal processing machine, and more particularly to a mechanism for preventing the generation of defective products having a notch in the middle of a coaxial cable.

[0002]

2. Description of the Related Art The essential points of a conventional coaxial cable terminal processing machine will be described with reference to FIGS. The wound coaxial cable 1 is delivered by a pair of feed rollers 2 and is supplied to the main body 10 of the processing machine via an intermediate feed mechanism 32 and a pre-feeder 30.

The coaxial cable 1 is made up of a sheath, a shield wire, an inner sheath (the above is the contact side),
The inner cover, shield wire, and sheath (these are the spring side) are cut in this order.

Further, the coaxial cable 1 is cut and cut by a strip blade 4, and is stripped leftward in the order of an inner coat, a shield wire, and a sheath.
The shield wire and the sheath are stripped rightward in this order.

The operation of the sensor 31 for detecting the feeding error of the coaxial cable 1 mounted on the pre-feeder 30 will be described. The sensor 31 detects whether the coaxial cable 1 is tensioned or looser than a predetermined value between the intermediate feeding mechanism 32 and the main body 10 of the processing machine. Sensor 3
When 1 detects tension or looseness of the coaxial cable 1 exceeding the predetermined range, the processing machine stops.

Normal operation of the processing machine is performed as shown on the right side of FIG. 8, but in the following cases, the pair of feed rollers 2
Are separated (opened) as shown in the uppermost column on the left side of FIG. That is, the reel of the coaxial cable 1 is replaced, the rotary blade 3 or the cutting and strip blades 4 are replaced, the trouble of the processing machine (maintenance, failure, cleaning, etc.), the entanglement of the coaxial cable 1 (the coaxial cable is the supply device or the processing machine Entangled with the main body 10) and carelessness.

Due to the separation of the pair of feed rollers 2, the coaxial cable 1 slightly moves in the reverse feed direction (left side) as shown on the left side of FIG. Due to this movement, there is a possibility that a product having a cut in the middle of the coaxial cable 1 may flow out to the market. Therefore, at the inlet on the supply side of the coaxial cable 1 to the processing machine, the worker cuts the coaxial cable 1 using a nipper, or discards the first processed coaxial cable 1. However, if the worker neglects to dispose of the first processed coaxial cable 1, there is a problem that a product having a cut in the middle of the coaxial cable 1 may flow out to the market. For details of FIGS. 7 and 8, refer to the description of the embodiment of the invention.

The cutting and stripping blades of the coaxial cable terminal processing machine are described in Japanese Patent Application Laid-Open No. 5-91613 and Japanese Patent No. 3006390.

[0009]

Therefore, the present invention improves the drawbacks of the above-mentioned conventional techniques, and automatically prevents the generation of defective products having a notch in the middle of the coaxial cable.
It is an object of the present invention to provide a processing machine for a terminal of a coaxial cable, which can ensure safety when the coaxial cable is strained or loosened beyond a predetermined range.

[0010]

The present invention adopts the following means in order to solve the above problems.

1. In a coaxial cable terminal processing machine having a rotary blade for making a cut in a coaxial cable, a feed roller for feeding the coaxial cable, and a cutting and strip blade for cutting and stripping the coaxial cable, the cutting and stripping The blade is in front of the rotary blade
Located on the opposite side of the coaxial cable from the supply side,
Detects the presence of cables and whether they are being sent normally
A sensor is provided, and the sensor is different from the coaxial cable.
When it always detects, the processing machine for the terminal is stopped and the cutting
And a guide / clan arranged on one side of the strip blade
The clamping device arranged on the other side with the clamping device is the coaxial cable.
When the cable is clamped, the cutting and stripping
The cutting blade cuts the coaxial cable, and when the feed roller moves to a position separated from the coaxial cable, the switch is actuated to drive the cutting blade, thereby cutting the coaxial cable and cutting the cutting blade. Is a coaxial cable terminal processing machine disposed on the supply side of the coaxial cable with respect to the rotary blade.

2. The movement of the feed roller is transmitted to the switch via a driven roller that is in contact with the feed roller and a support member that supports the driven roller, and the switch drives the cutting blade by energizing a cylinder. Machine for terminal of the described coaxial cable.

3. A rotary blade for making a cut in a coaxial cable, a feed roller for feeding the coaxial cable, a cutting machine for cutting and stripping the coaxial cable, and a cutting and stripping blade for a coaxial cable, wherein the coaxial cable is When a sensor is installed to detect tension or looseness of the coaxial cable when it is supplied to the processing machine, and the sensor detects tension or looseness of the coaxial cable that exceeds a predetermined range, The processing machine is stopped, the switch is operated and the cutting blade is driven, whereby the coaxial cable is cut, the cutting blade is arranged on the supply side of the coaxial cable with respect to the rotary blade, and the sensor is A processing machine for a terminal of a coaxial cable arranged on the supply side of the coaxial cable with respect to the cutting blade.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION A coaxial cable terminal processing machine according to an embodiment of the present invention will be described with reference to FIGS.

First, the overall construction of the coaxial cable terminal processing machine will be described with reference to FIG. Coaxial cable 1
Are sent from the left side to the right side by a pair of feed rollers 2. The coaxial cable 1 is cut into the sheath, the shield wire, and the inner cover from the outer peripheral surface by the rotary blade 3 (details will be described later), guided by the first guide 5, and passes between the pair of feed rollers 2. , Second guide and clamp device 6
The center conductor (described later) is cut by the cutting and strip blades 4, and the sheath, the shield wire and the inner sheath are stripped. The sensor 7 detects whether or not the coaxial cable 1 is present and whether or not the coaxial cable 1 is normally sent. When the sensor 7 detects an abnormality in the coaxial cable 1, the processing machine stops. The cutting and stripping blades 4 cut the coaxial cable 1 while the second guide and clamp device 6 and the clamp device 8 are clamping the coaxial cable 1.
Then, the cutting and stripping blade 4 moves to the vicinity of the clamp device 8 to strip the sheath, the shield wire, and the inner jacket on the left end side of the cut coaxial cable 1. Then, the cutting and stripping blade 4 moves to the vicinity of the second guide and clamp device 6 to cut the cut coaxial cable 1
Strip the sheath, shield wire and inner sheath on the right end side of. The stripped sheath, shield wire and inner sheath are
It is stored in the waste storage unit 9.

By the way, when the cable end processing machine is stopped, the pair of feed rollers 2 are separated (opened),
When the coaxial cable 1 is set again, the coaxial cable 1 is processed with the middle cut. In order to prevent such processing, the present invention is devised as follows.

The coaxial cable 1 in the main body 10 of the processing machine
The table 11 is installed on one side of the supply side of, and the cutting blade drive unit 12 is mounted on the table 11. The cutting blade drive unit 12 includes a cutting blade 13 and a safety cover 1 arranged on both sides of the cutting blade 13.
4, an air cylinder 15 that drives the cutting blade 13, and a holding member 16 that holds the cutting blade 13, the safety cover 14, and the air cylinder 15. Pair of feed rollers 2
The driven roller 17 comes into contact with the upper roller in
The center of the driven roller 17 is rotatably supported by the support member 18. The support member 18 is held by the switch 19 so as to be vertically movable. The switch 19 and the air cylinder 15 are connected by a lead wire 20.

When the upper roller of the pair of feed rollers 2 is separated from the lower roller, the driven roller 17 and the support member 18 are pushed up as shown in FIG. 1 (b). Then, the switch 19 turns on and the lead wire 20
Is energized and the air cylinder 15 is driven, so that the cutting blade 13 cuts the coaxial cable 1.

The design of the air cylinder 15 can be changed to a hydraulic cylinder or the like.

Next, the steps of the processing operation of the coaxial cable terminal processing machine will be sequentially described with reference to FIGS.

The coaxial cable 1 is fed by a pair of feed rollers 2 and is cut from the outer peripheral surface by a rotary blade 3 into a sheath, a shield wire and an inner jacket (described later), and further cut and stripped by a blade 4. The center conductor (described later) is cut, and the sheath, shield wire and inner coat are stripped.

Initial set state FIG. 2A shows an initial set state, that is, a coaxial cable.
The state at the time of setting of Rule 1 is shown. Rotary blade 3 and cutting and strike
Distance L from the lip blade 4₁Is 245 mm, coaxial
The tip of the cable 1 should be cut and stripped during normal work.
Up blade 4 to L _Two= Set to 50 mm
It

Notch (3 places) As shown in FIG. 2 (b), 3 places (FIG. 7) are prepared in order to prepare the terminal processing of the next crimp terminal side of the coaxial cable 1.
Make a notch in the inner jacket, shield wire, and sheath shown in. In this case, the coaxial cable 1 moves the terminal dimension L ₃ = 16 mm for three locations.

Movement of Notch Section As shown in FIG. 2 (c), the notch section moves from the rotary blade 3 to the cutting and strip blade 4. In this case, the moving distance is L ₄ = L ₁ −L ₃ = 229 mm.

Cutting and stripping coaxial cables As shown in FIG. 2D, the extra length portion of the coaxial cable 1
Minute L₅= L₁+ L _Two= Cut 295 mm. So
Then, make the notch at the terminal dimension L_Three= Don't move 16mm
It will be processed.

Movement of Coaxial Cable As shown in FIG. 3 (a), in order to process the end on the contact side of the coaxial cable 1, its end dimension L ₆ = 1.
The sheath cut position of 2.5 mm is moved to the rotary blade 3. The moving distance L ₇ is L ₇ = L ₈ −L, provided that the cutting dimension L ₈ of the coaxial cable 1 is 546.5 mm.
The ₆ -L ₁ -L ₃ = 273mm.

Notches (6 places) The rotating blade 3 makes 6 notches (see FIG. 7) from the contact side to the crimp terminal side as shown in FIG. 3 (b). Moving distance L ₉ = L ₆ + L ₃ = 28.5
mm.

Movement of the notch part The notch part moves from the rotary blade 3 to the cutting and strip blade 4 as shown in FIG. 3 (c). In this case, the moving distance is L ₄ = L ₁ −L ₃ = 229 mm.

Cutting and Stripping of Coaxial Cable As shown in FIG. 3 (d), the coaxial cable 1 is cut at the center of the cut portion, and the contact side and the crimp terminal side are stripped, respectively. At this time, the coaxial cable 1
The terminal size L ₃ = 16 mm is moved.

The process order is →→→→→→→
→→→→→→→→ ...

Next, the process of occurrence of the incision and the dimensions of the incision will be described with reference to FIG.

During the cutting process and stopping of the processing machine As shown in FIG. 4 (a), the processing machine is stopped when the rotary blade 3 makes a predetermined cut in the coaxial cable 1.

Resetting of the coaxial cable Here, unlike the normal operation, the pair of feed rollers 2 are opened and the coaxial cable 1 is reset. At this time,
Since the tip of the coaxial cable 1 is returned to the set position as shown in FIG.
A is returned to the supply side.

Re-operation As shown in FIG. 4 (c), when the processing machine is restarted,
The position of the rotary blade 3 at the set position is recognized as the next cutting position of the coaxial cable 1, and three cuts are made in order to prepare for the end processing of the crimp terminal side of the coaxial cable 1. In this case, the coaxial cable 1 has three terminal dimensions L ₃ =
Move 16 mm.

Movement of the cut portion, cutting of the coaxial cable and terminal processing As shown in FIG. 4 (d), the cut portion 1A is the rotary blade 3
To the cutting and strip blade 4. Then, the extra length portion L ₅ is cut, and the terminal dimension L ₃ on the clamp terminal side is processed while moving the coaxial cable 1. The moving distance L ₉ = L ₁ −L ₃ + L of the cut portion 1 </ b> A in this case
₃ = L ₁ = 245 mm.

Further, the description will be continued with reference to FIG.

Incision (6 places) As shown in FIG. 5 (a), in order to perform the terminal processing on the contact side of the coaxial cable 1, the sheath cut position having the terminal dimension L ₆ is moved to the rotary blade 3. In this case, the moving distance is L ₄ = L ₁ −L ₃ = 229 mm.
Next, the rotary blade 3 is used to make six cuts from the contact side to the crimp terminal side.

Cutting and Stripping of Coaxial Cable As shown in FIG. 5 (b), the notch 1A moves from the rotary blade 3 to the cutting and stripping blade 4. In this case, the moving distance is L ₁₀ = L ₁ + L ₃ = 261 mm. Then, the coaxial cable 1 is cut at the center of the cut portion, and the contact side and the crimp terminal side are stripped, respectively. Cut-out dimension L ₁₁ = L ₁ + L from the cutting position at the center of the cut-out portion of the coaxial cable 1 to the cut-out portion 1A
₂ = L ₅ = 295 mm. Even if the cut size L ₈ of the coaxial cable 1 changes, the cut portion size L ₁₁ does not change.

Assembly of coaxial cable connector and crimp terminal FIG. 5 (c) is a sectional view showing a state in which the contact side of the coaxial cable 1 is connected to the connector 21 and the crimp terminal side is connected to the harness 22.

FIG. 6 (a) is an enlarged view of the portion A in FIG. 5 (c). The contact-side ends of the two coaxial cables 1 are the two contacts held in the housing 21A of the connector 21. 21B is connected. Figure 6 (b)
5 is an enlarged view of a portion B in FIG. 5C, in which the terminal on the crimp terminal side of the coaxial cable 1 is connected to the contact 22A of the harness 22.

Next, the cutting, cutting and stripping of the coaxial cable 1 and the safety device for supplying the coaxial cable 1 to the processing machine will be described with reference to FIG.

The cutting of the coaxial cable 1 by the rotary blade 3 and the cutting and stripping by the cutting and stripping blade 4 are the same as in the prior art.

Explaining the safety device, an independent pre-feeder 30 is installed on the left side of the main body 10 of the processing machine.
The pre-feeder 30 is equipped with a sensor 31 that detects a feeding error of the coaxial cable 1. The coaxial cable 1 is supplied to the processing machine via the intermediate feeding mechanism 32 and the pre-feeder 30. The sensor 31 detects whether the coaxial cable 1 is tensioned or looser than a predetermined value between the intermediate feeding mechanism 32 and the main body 10 of the processing machine. When the sensor 31 detects the tension or looseness of the coaxial cable 1 beyond the predetermined range, the processing machine is stopped, the switch 19 is turned on, and the cutting blade 13 cuts the coaxial cable 1.

[0044]

As is apparent from the above description, according to the present invention, the following effects can be obtained.

1. The occurrence of defective products with cuts in the middle of the coaxial cable is prevented.

2. When moving the feed roller to a position separated from the coaxial cable, the operator can save the troublesome work of cutting the coaxial cable with a nipper or the like.

3. There is no need to discard the first processed coaxial cable.

4. When the coaxial cable is supplied to the processing machine, if the sensor detects tension or looseness of the coaxial cable beyond a predetermined range, the coaxial cable is automatically disconnected. Therefore, safety measures are taken.

[Brief description of drawings]

FIG. 1 is a front view of an entire coaxial cable terminal processing machine according to an embodiment of the present invention, in which (a) is a state during normal work, and (b) is a separation (open) of a pair of feed rollers. ) Hour, respectively.

2A to 2D are explanatory views of first to fourth steps of the processing operation of the processing machine in sequence.

3A to 3D are explanatory views of fifth to eighth steps of the processing operation of the processing machine in sequence.

4A to 4D are explanatory views of the first to fourth generation processes of incisions and the dimensions of the incisions by the processing machine in sequence.

5 (a) to (c) are explanatory views of fifth to seventh generation processes of incisions and dimensions of the incisions by the processing machine in order.

6A is an enlarged cross-sectional view of a portion A in FIG. 5C, and FIG. 6B is an enlarged cross-sectional view of a portion B in FIG. 5C.
Shown respectively.

FIG. 7 is an overall schematic view of a conventional coaxial cable terminal processing machine, and an explanatory view of cutting, cutting and stripping of the coaxial cable.

FIG. 8 is an explanatory diagram of normal work and irregular work of a conventional coaxial cable terminal processing machine.

[Explanation of symbols]

1 coaxial cable 2 Feed roller 3 rotary blades 4 Cutting and strip blades 5 First Guide 6 Second guide and clamp device 7 sensors 8 Clamp device 9 Waste storage section 10 body 11 units 12 Cutting blade drive 13 cutting blade 14 Safety cover 15 Air cylinder 16 Holding member 17 Driven roller 18 Support members 19 switch 20 lead wires 21 connector 21A housing 21B contact 22 harness 22A contact 30 pre-feeder 31 sensor 32 Intermediate feed mechanism

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H02G 1/14 H02G 1/14 C (56) Reference JP-A-7-63684 (JP, A) JP-A-5-91613 ( JP, A) JP-A-7-211427 (JP, A) Actual development Sho 57-34108 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) H02G 1/12 H01R 43/00 H02G 1/14

Claims (3)

(57) [Claims] 1. A processing machine for a terminal of a coaxial cable, comprising: a rotary blade for cutting a coaxial cable; a feed roller for feeding the coaxial cable; and a cutting and stripping blade for cutting and stripping the coaxial cable. , The cutting and strip blades are the same as the rotary blades.
It is arranged on the opposite side to the supply side of the axial cable, and determines whether the coaxial cable exists and whether it is sent normally.
A sensor for detecting is provided, and the sensor is the coaxial cable.
When the bull's abnormality is detected, the terminal processing machine stops,
Guides arranged on one side of the cutting and strip blades
The combined clamp device and the clamp device arranged on the other side
When cutting the coaxial cable,
The strip blade cuts the coaxial cable, and when the feed roller moves to a position separated from the coaxial cable, a switch is actuated to drive the cutting blade, thereby cutting the coaxial cable and cutting the cutting blade. Is disposed on the supply side of the coaxial cable with respect to the rotary blade. 2. The movement of the feed roller is transmitted to the switch via a driven roller that comes into contact with the feed roller and a support member that supports the driven roller, and the switch cuts the cutting blade by energizing a cylinder. The coaxial cable terminal processing machine according to claim 1, which is driven. 3. A processing machine for a terminal of a coaxial cable, comprising: a rotary blade for cutting a coaxial cable; a feed roller for feeding the coaxial cable; and a cutting and stripping blade for cutting and stripping the coaxial cable. When the coaxial cable is supplied to the processing machine, a sensor is installed to detect whether the coaxial cable is tensioned or looser than a predetermined value, and the tension or looseness of the coaxial cable exceeds a predetermined range by the sensor. When the processing machine is stopped, the switch is operated and the cutting blade is driven to cut the coaxial cable, and the cutting blade is disposed on the supply side of the coaxial cable with respect to the rotary blade. And the sensor is arranged on the supply side of the coaxial cable with respect to the cutting blade.