JP2001229753A - Marking device for cable identification - Google Patents

Abstract

(57) [Problem] To provide a marking device for cable identification that enables printing on various cables having different outer diameters. A marking device (10) includes a traveling guide (14) for guiding a communication cable (12), and a traveling guide (1).
A rotary encoder 16 for measuring an amount of movement of the communication cable 12 passing through the communication guide 4, and a printing unit 18 provided above the travel guide 14 for marking the communication cable 12.
And elevating means 20 for bringing the printing unit 18 into and out of contact with the communication cable 12. In such a marking device 10, even if the outer diameter of the communication cable 12 fluctuates and the contact pressure of the printing unit 18 on the communication cable 12 fluctuates, the coil spring 89 absorbs the excessive contact pressure, so that the marking quality can be stabilized. it can.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable identification marker device for marking communication cables at regular intervals when the communication cables are routed along an extended route to clarify the characteristics of the communication cables. In particular, the present invention relates to a cable identification marking device capable of reliably performing printing even when the outer diameter of a communication cable changes.

[0002]

2. Description of the Related Art In recent years, with the spread of mobile phones, many antennas have been installed. A coaxial cable for signal transmission is drawn out of such an antenna, and a connector for connection is attached to a distal end side of the coaxial cable. By connecting the above-mentioned coaxial cable to a communication device, a system for transmitting and receiving a communication signal is configured.

[0003] By the way, since many such coaxial cables are laid along the extension route, when the coaxial cable is connected to a communication device, there is a possibility that erroneous connection may occur if there is no display. For this reason, when laying the coaxial cable along the extension route, the coaxial cable is fed out at the start end side and various identification marks are attached to the surface of the coaxial cable using a tape or a tag, and these tapes and The display of the tag prevents erroneous connection to the communication device. Various displays attached to the coaxial cable are also used for asset management of the coaxial cable.

[0004]

However, in the method of attaching a tape or tag to the end of the coaxial cable as described above, the tape or tag may come off from the coaxial cable during the laying operation, and the There was a possibility that it would be unclear where to connect the cable to the communication device.

In a coaxial cable, when an inspection device is connected to both ends (connector portion) of the coaxial cable to check whether there is a defect in the middle of the cable, there is no indication of the length in the middle of the coaxial cable. It was difficult to locate the defect. Furthermore, if there is no indication of the length on the coaxial cable, it is not possible to know how much the coaxial cable has been extended along the extension route, so it is possible to know the remaining amount of coaxial cable wound around the cable drum was difficult.

[0006] In order to solve these problems, there is a method of marking a cable fed out using a marking device at a fixed interval at a cable laying site.
Some coaxial cables have different outer diameters and shapes depending on the intended use. For this reason, if the same device is used to perform marking on the surfaces of these coaxial cables having different outer diameters, the marking position fluctuates by the difference between the outer diameters. In some cases, the force was applied to the coaxial cable, and the marking was broken, making it impossible to see. In the coaxial cable, a constricted portion is formed continuously on the outer conductor, so that the strength of the coaxial cable itself is ensured. For this reason, when marking is performed along the extension direction of the coaxial cable, the unevenness due to the squeezed portion further changes the contact pressure, and there is a possibility that the deterioration of the printing quality of the coaxial cable is increased.

When an excessive force is applied to the coaxial cable, the coaxial cable may be defective. For this reason, it is conceivable to prepare a marking device for the number of types of outer diameters at the work site, and to switch the marking device as appropriate. However, a new problem arises in that carrying-in and management to the work site become complicated.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a cable identification marking device which enables printing on various cables having different outer diameters.

[0009]

According to the present invention, if a reaction force absorbing means is provided in a printing section or a lifting / lowering means, even if an excessive force is applied to the printing section when the printing section comes into contact with a communication cable, this force is absorbed. This is based on the finding that stable printing pressure can be obtained.

[0010] That is, a cable identification marking device according to the present invention comprises a travel guide capable of guiding a communication cable, travel distance detection means for detecting an amount of the communication cable passing through the travel guide, and the travel guide. A printing unit provided in the middle of the communication cable for making a print on the communication cable by contact, and an elevating means for moving the printing unit to and away from the communication cable in conjunction with the amount of passage of the communication cable detected by the movement amount detection means Having a reaction force absorbing means in the printing unit or the elevating means, absorbing the pressing reaction force generated when the printing unit comes into contact with the communication cable by the reaction force absorbing means to keep the contact pressure constant. I decided to keep it.

The elevating means comprises a slide mechanism mounted on the printing section and a first cam having a curved surface for bringing the printing section into and out of contact with the communication cable, and connecting the printing section to the communication cable. The curved surface range of the first cam to be contacted may be provided separately as a second cam, and the second cam may be swingably attached to the first cam as the reaction force absorbing means.

Preferably, the lifting means and the printing unit are mounted on a rotating body which rotates in synchronization with the moving speed of the communication cable. In addition, the traveling guide is configured by a pair of guide portions capable of sandwiching the communication cable,
The guide portion on the side where the printing portion is located is a fixed side,
It is desirable that the other side be a movable side, or that the moving amount detecting means include a direction detecting unit and output a total passing amount in the feeding direction.

[0013]

According to the above construction, if the communication cable is guided by the travel guide, the communication cable does not come off from the travel guide and passes through the travel guide in a stable position within a range where the travel guide is provided. be able to. Then, the movement amount of the communication cable that moves the travel guide is detected by the movement amount detection means, and if the movement amount is output from the movement amount detection means, the lifting means moves the printing unit up and down in conjunction with the movement amount, Marking can be performed at equal intervals (by the printing unit) on the communication cable. Here, even if the speed of the communication cable passing through the travel guide fluctuates and the amount of movement of the communication cable per unit time fluctuates, the amount of change is detected by the amount of movement detection means, and the amount of movement is raised and lowered according to the amount of change. Since the means adjusts the interval at which the printing unit moves up and down, that is, the timing at which the printing unit comes into contact with the communication cable, marking can be performed on the communication cable at equal intervals with certainty regardless of the passing speed of the communication cable.

Here, if the outer diameter of the communication cable changes, the distance from the printing section to the surface of the communication cable changes. Although the contact pressure of the printing portion with respect to the cable fluctuates, since the printing portion or the lifting / lowering means is provided with the reaction force absorbing means, the excessive contact pressure is absorbed by the reaction force absorbing means, and the printing portion of the communication cable with respect to the communication cable. The contact pressure is always within an appropriate range, and the printing quality can be stabilized. The amount of absorption by the reaction force absorbing means may be set with reference to the outer diameter and hardness of the cable used.

If the elevating means is constituted by a slide mechanism and a first cam, if the curved surface of the first cam is brought into contact with the printing section, the printing section approaches the communication cable by the slide mechanism along the cam surface. Can be done. If the second cam having a cam curved surface in a range where the printing portion contacts the communication cable is made swingable and this is used as a reaction force absorbing means,
When an excessive force is applied to the printing unit due to a difference in the outer diameter of the communication cable, the second cam swings according to the force and absorbs the excessive force. For this reason, the contact pressure of the printing unit to the communication cable is always within an appropriate range, and the printing quality can be stabilized. The swing amount of the second cam may be set with reference to the outer diameter and hardness of the cable used.

If the lifting means and the printing unit are mounted on a rotating body which rotates in synchronization with the moving speed of the communication cable, there is no relative speed difference when the printing unit comes into contact with the communication cable. Accordingly, it is possible to prevent the printing portion from being rubbed with the communication cable and the printing quality from being degraded.
Further, since the speed of the rotating body is synchronized with the communication cable, printing can be performed without being affected by the speed of the communication cable.

By the way, if the traveling guide is constituted by a pair of guide portions capable of sandwiching the communication cable and the guide portion on which the printing portion is located is fixed and the other side is the operating side, the communication cable is operated. The guide portion is pressed against the fixed-side guide portion. When such a structure is used, the variable factor of the distance between the communication cable and the printing unit is only the difference in the outer diameter of the communication cable, and the variable factor can be reduced.

If the moving amount detecting means is provided with a direction detecting section, even if the back tension is applied during the sending of the communication cable and the communication cable is pulled back, the amount of retraction is detected and the difference is calculated from the sent amount. Therefore, the amount of movement of the communication cable in the sending direction can be detected. For this reason, even if the communication cable is pulled back, it is possible to accurately perform marking at regular intervals by the printing unit.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the cable identification marking device according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a front view showing a form of a marking device for cable identification (hereinafter, referred to as a marking device) according to the present embodiment. FIG. 2 is an operation state diagram of a traveling guide constituting the marking device. FIG.
FIG. 3 is a top view of a traveling guide that constitutes the marking device.

As shown in these figures, the marking device 1
0 is a travel guide 14 for guiding the communication cable 12
A moving amount measuring means for measuring a moving amount of the communication cable 12 passing through the traveling guide 14; a printing unit 18 provided above the traveling guide 14 for marking the communication cable 12; The communication cable 12
And lifting means 20 for moving toward and away from.

The traveling guide 14 for guiding the communication cable 12 comprises an upper guide portion 22 and a lower guide portion 24 serving as guide portions. The upper guide portion 22 is fixed and the lower guide portion 24 is connected. The movable side is set so that the communication cable 12 can be pinched.

The upper guide portion 22, which is a fixed side, is provided with a pair of T-shaped arms 28 which are provided upright from the base 26 which forms the base of the marking device 10 so as to sandwich the printing portion 18.
And an upper guide roller 30 attached to both ends of the T-shaped arm 28 and having V-grooves on the surface thereof. The V-groove of the upper guide roller 30 supports the communication cable 12 and rolls the communication cable 12 while rolling. Twelve guides are provided.

On the other hand, the lower guide portion 24 on the movable side is also provided with a lower guide roller 32 having a V-groove on its surface, similarly to the upper guide roller 30, and these lower guide rollers 32 are provided on both sides of the roller. It is rotatably supported by the provided guide plate 34. The guide plate 34 constitutes a parallel link mechanism with respect to the base 26, and the link mechanism can approach or separate from the upper guide portion 22. The guide plate 34 is linked with a first swing arm 38 and a second swing arm 40 having a detachment prevention roller 36 attached to the tip thereof, and a pinch roller portion 42. The upper guide portion of the lower guide portion 24 is linked. The communication cable 12 can be guided in conjunction with the approach to the communication cable 22. The pinch roller section 42 is provided with a pair of pinch rollers 44 so as to straddle the communication cable 12 before and after the printing section 18.
4, a lower guide roller 32 is provided below the printing unit 18 to prevent the communication cable 12 from moving when the printing unit 18 comes into contact with the communication cable 12 so that the printing quality is not degraded. Like that.

The pinch roller 44 sandwiching the communication cable 12 can be expanded and contracted by rotating a handle 46. Therefore, when the marker device 10 is operated, the handle 46 may be rotated in accordance with the outer diameter of the communication cable 12 to be laid, and the pinch roller 44 may be set in advance so that the pinch roller 44 comes into contact with the communication cable 12. The rotation of the handle 46 causes the pinch roller 4 to rotate.
The mechanism for setting the interval of 4 is provided with a male screw on a rotation shaft extending from the center of rotation of the handle 46, a member on the pinch roller 44 side is screwed to the male screw, and the mechanism is generated by rotation of the handle 46. The distance between the pinch rollers 44 may be changed by the thrust.

In the T-shaped arm 28 disposed on the front side of the printing unit 18, between the upper guide rollers 30
A movement amount measuring means for detecting a movement amount of the communication cable 12 is attached. The movement amount measuring means is a two-phase rotary encoder 16 and a measuring and measuring device connected thereto.
And a control unit 48. Then, the rotary encoder 16 rotates as the communication cable 12 moves, and the amount of rotation (the number of pulses) is calculated by the measurement / control unit 48 to calculate the movement amount of the communication cable 12. Since the rotary encoder 16 is provided with a direction detecting unit to detect the rotation direction, even if an external force acts on the communication cable 12 and the communication cable 12 is pulled back, for example, the rotary encoder 16 detects the amount of retraction. can do. Then, the measurement / control unit 48 can calculate an accurate sending amount of the communication cable 12 by subtracting the retraction amount from the moving amount of the communication cable 12. The printing unit 18 and the lifting / lowering unit 20 that mark the communication cable 12 at regular intervals are provided between a pair of T-arms 28 that form the upper guide unit 22.

FIG. 4 is a front view and a side view of the printing unit and the lifting / lowering means, and FIG. 5 is an exploded view of parts of the lifting / lowering means. As shown in these figures, the printing unit 18 includes a fixed frame 50.
And a movable portion 52 that can move up and down with respect to the fixed frame 50. A printing belt is hung on the bottom surface of the movable portion 52 from above the movable portion 52, and the printing of the printing belt is performed. A surface (hereinafter, referred to as a belt printing surface) is pressed against the surface of the communication cable 12 so that marking can be performed.

The printing belt has a form in which letters and numbers are formed in a convex shape along its annular outer peripheral surface. By rotating the printing belt, letters or numbers are selected, and an arbitrary letter or number is selected. Marking can be performed on the surface of the communication cable 12. For this reason, the marking display (see FIG. 6C) is set to two types of rod information (for example, columns a to c) and elapsed length information (for example, columns d to f). If the printing belt is rotated for each printing in the length information column, a number can be added for each printing in the elapsed length information column, and the middle of the communication cable 12 can be added based on this display. Even if it is, the length from the end can be known.

The printing belt is preferably made of an elastic material such as rubber so as not to damage the cable surface when the printing belt comes into contact with the communication cable 12. Further, the paint for marking the communication cable 12 is applied to the marking device 1 after the marking is applied.
Because of the possibility of contact with the rollers provided on the belt, it is desirable that the belt has a quick-drying property. Is preferably applied (in the present embodiment, the solvent is applied every ten printings).

The fixed frame 50 is provided with a mounting block 56 constituting a slide mechanism, which allows the fixed frame 50 to be mounted on a rotating portion described later. On the other hand, from the upper part of the movable part 52, a roller 54 that makes a rolling contact with a cam described later is provided, and the movable part 52 can be moved up and down by making a rolling contact along the cam curved surface.

The lifting / lowering means 20 is provided with a drive motor 58 that rotates in accordance with the result of calculation in the measurement / control unit 48, that is, the amount of movement of the communication cable 12, and the mounting plate 60 is moved from the flange surface of the drive motor 58. The rotation part 62 is mounted via the drive chain 64 so that the rotation of the drive motor 58 can be transmitted to the rotation part 62 via the drive chain 64.

The rotating portion 62 includes a rotating plate 66 and a rotating plate 68
And a gear mechanism configured to be sandwiched between these rotating plates. A fixed shaft 70 for supporting the rotating plate is provided at the center of the pair of rotating plates, and a driving force from a driving motor 58 is transmitted to an end of the fixed shaft 70 via a driving chain 64. Sprocket 7
1 is rotatably mounted. Note that the sprocket 71 is fixed to a rotating plate 68, and the rotating plate 68 can also rotate together with the rotation of the sprocket 71.

Outside the fixed shaft 70, an intermediate shaft 72 and a rotating shaft 75 arranged in parallel with the fixed shaft 70 are rotatably provided. A fixed gear 74 is attached to the fixed shaft 70, and rotation can be transmitted to a rotating gear 78 attached to the rotating shaft 75 via an intermediate gear 76 attached to the intermediate shaft 72. The fixed gear 74 and the rotating gear 78 have the same shape (the same outer diameter and the same number of teeth). Therefore, when the drive motor 58 is driven, the rotating portion 62 rotates via the drive chain 64. Here, since the rotating gear 78 meshes with the fixed gear 74 via the intermediate gear 76, reverse rotation is given. It rotates while maintaining a certain posture. Therefore, a mounting block 80 that protrudes from the rotary plate 66 and forms a slide mechanism is mounted at the end of the rotary shaft 75 to which the rotary gear 78 is mounted. The mounting block 80 is mounted on the printing unit 18 side. Mounting block 5
6, the printing unit 18 can be rotated about the fixed shaft 70 while maintaining the same posture.

A first cam 82 is provided on the side of the rotary plate 66 where the rotary shaft 75 projects. The first cam 82 is fixed to the rotary plate 66 with bolts, and can be rotated together with the rotary plate 66 about the rotary shaft 72. The cam curved surface 84 of the first cam 82 is capable of rolling contact with the roller 54 described above, and pushes down the rolled roller 54 along the cam curved surface 84 to communicate with the belt printing surface by lowering the movable portion 52. The cable 12 is brought into contact with the cable 12. In the cam curved surface 84, the belt printing surface is connected to the communication cable 12.
The curved area of the first cam 82 to be brought into contact with the second cam 86 is separately provided as the second cam 86, and the second cam 86 is swingably attached to the first cam 82. A coil spring 89 is provided between the first cam 82 and the second cam 86,
The cam 86 applies a biasing force in a direction protruding from the first cam 82.

A procedure for performing a marking process on the communication cable 12 using the marking device configured as described above will be described. FIG. 6 is an explanatory diagram illustrating a form of a communication cable to be marked. As shown in the figure, the communication cable 12 is wound around a large-sized drum 88 many times. In the cable drawing work, the tip of the communication cable 12 is pulled out from the drum 88 and the communication cable 12 is drawn out. Like that. Communication cable 12
Has a configuration in which tubular conductors 90 are doubly arranged, a space between these conductors 90 is filled with an insulating material 92, and an outer surface of the outer conductor 90 is covered with polyethylene 9.
4 are provided to prevent the conductor 90 from being damaged by external force. An aperture is provided intermittently in the outer conductor 90 of the communication cable 12 along the extension direction thereof, so that the strength of the communication cable 12 itself can be secured.

The communication cable 12 having such a structure
In order to attach the communication cable 12 to the marking device 10, first, the lower guide 24 is pushed down from the upper guide 22, and a gap is formed between the upper guide 22 and the lower guide 24 so that the communication cable 12 can be inserted.

The communication cable 12 is connected to the upper guide 2
After being inserted between the lower guide portion 24 and the lower guide portion 24, the lower guide portion 24 is moved closer to the upper guide portion 22 side by using a link mechanism, and the upper guide roller 30 and the lower guide roller 32 are moved.
And the communication cable 12 is sandwiched. If the communication cable 12 is sandwiched between the upper guide portion 22 and the lower guide portion 24 in this manner, the communication cable 12 is guided by a guide roller, a pinch roller, and a separation prevention roller. Even if you join
The communication cable 1 is located in a range that passes through the marking device 10.
2 can run stably.

Here, when the communication cable 12 is sent out so as to pass through the marking device 10, the rotary encoder 16 rotates with this sending out, and the sending amount of the communication cable 12 is calculated by the measurement / control unit 48. The drive motor 58 is linked with the sending amount of the communication cable 12 calculated by the measurement / control unit 48.
Rotates, and transmits this power to the rotating unit 62 via the drive chain 64.

FIG. 7 is an explanatory diagram showing a rotating state of the rotating unit 62. As shown in FIG.
2 starts to rotate in the direction of arrow 96 in the figure. Note that the printing section 18 is omitted in the figure, and the mounting block 80 and the rollers 54 are illustrated.

First, as shown in FIG. 1A, when the rotating plate 66 rotates, the cam curved surface 84 of the first cam 82 comes into contact with the roller 54. Then, as shown in FIG. 2B, when the rotation of the rotary plate 66 advances, the roller 54 descends following the cam curved surface 84,
The movable part 52 (not shown) is moved to the communication cable 12 side. The roller 54 moves from the first cam 82 to the second cam 86 with the rotation of the rotating plate 66. When the cam curved surface 84 pushes the roller 54 down to the lowest point as shown in FIG. 3C, the belt printing surface attached to the lower end of the movable part 52 comes into contact with the surface of the communication cable 12, and Marking can be applied to the surface.

By the way, the communication cable 12 may have various outer diameters. Even in such a case, the second cam 86 can swing with respect to the first cam 82. As described above, since the coil spring 89 serving as the reaction force absorbing means is provided, the difference in the outer diameter of the communication cable 12 can be absorbed by the swing of the second cam 86 (see the dimension A in the figure). Therefore, even if the outer diameter of the communication cable 12 is different and the pressing force of the belt printing surface against the communication cable 12 increases, the increased amount is absorbed by the coil spring 89, so that an excessive force is applied to the communication cable 12. Can be prevented, and the quality of the marking can be prevented from deteriorating. Then, even after the belt printing surface comes into contact with the communication cable 12, the roller 54 moves along the cam curved surface 84 as shown in FIG.

By repeating the operations shown in FIGS. 1A to 1D and rolling the roller 54 along the cam curved surface 84, the communication cable 12 having a different outer diameter can be fixed. Marking can be performed at intervals of.

Since the printing section 18 is attached to the rotating section 62, the printing section 18 comes into contact with the communication cable 12 in synchronization with the moving speed of the communication cable 12 during printing. For this reason, even if the feed speed of the communication cable 12 is increased, the printing unit 18 is synchronized with the feed speed, so that there is no difference in the relative speed, and it is possible to prevent the quality of the marking from deteriorating.

In this embodiment, the marking interval is set to 1 meter, and the rod information and the elapsed length information of the cable are marked in the columns a to f as shown in FIG. However, the present invention is not limited to this mode, and the marking interval may be widened, and rod information may be displayed by a barcode or the like.

[0044]

As described above, according to the present invention, a travel guide capable of guiding a communication cable, travel distance detecting means for detecting an amount of sending out of the communication cable passing through the travel guide, A printing unit provided in the middle of the guide to print on the communication cable by contact,
Lifting means for moving the printing unit into and out of contact with the communication cable in conjunction with the passage amount of the communication cable detected by the movement amount detection means, and providing a reaction force absorbing means in the printing unit or the lifting means Since the pressing reaction force generated when the printing unit comes into contact with the communication cable is absorbed by the reaction force absorbing means so as to keep the contact pressure constant, various cables having different outer diameters can be formed by a single device. Can be printed.

[Brief description of the drawings]

FIG. 1 is a front view showing a form of a cable identification marking device according to the present embodiment.

FIG. 2 is an operation state diagram of a traveling guide constituting the marking device.

FIG. 3 is a top view of a traveling guide constituting the marking device.

FIG. 4 is a front view and a side view of a printing unit and a lifting / lowering unit.

FIG. 5 is an exploded view of parts of the elevating means.

FIG. 6 is an explanatory diagram showing a form of a communication cable to be marked.

FIG. 7 is an explanatory diagram illustrating a rotating state of a rotating unit.

[Explanation of symbols]

10 marking device, 12 communication cable, 14 traveling guide, 16 rotary encoder, 18 printing section, 20 lifting / lowering means, 22
……… Upper guide part, 24 ……… Lower guide part, 26…
... Base, 28 T-arm 30 Upper guide roller 32 Lower guide roller 34
Guide plate, 36 外 外 れ 防止 防止 防止 ３８ ３８, 38…
... First swing arm, 40 ... Second swing arm, 42 ...
… Pinch roller part, 44… Pinch roller, 46…
… Handle, 48… Measurement / control unit, 50… Fixed frame, 52… Movable unit, 54… Roller, 56…
... Mounting block, 58 ... Drive motor, 60 ...
Mounting plate 62, rotating part 64 drive chain
66 ... rotating plate, 68 ... rotating plate, 70 ... fixed shaft, 72 ... intermediate shaft, 74 ... fixed gear, 75 ...
... Rotating shaft, 76 ... Middle gear, 78 ... Rotating gear,
80 mounting block 82 first cam 84
...... cam curved surface, 86 ... second cam, 88 ... drum, 89 ... coil spring, 90 ... conductor, 92 ...
... insulating material, 94 ... rubber, 96 ... arrow

Claims (5)

[Claims] 1. A travel guide capable of guiding a communication cable, travel distance detection means for detecting a feed amount of the communication cable passing through the travel guide, and the communication cable provided in the middle of the travel guide by contact. A printing unit that performs printing on the communication cable, and a lifting unit that moves the printing unit toward and away from the communication cable in conjunction with the amount of passage of the communication cable detected by the movement amount detection unit. A marking for identifying a cable, wherein a reaction force absorbing means is provided in the lifting / lowering means, and a pressing reaction force generated when the printing unit comes into contact with the communication cable is absorbed by the reaction force absorbing means to keep the contact pressure constant. apparatus. 2. The communication device according to claim 1, wherein the lifting unit includes a slide mechanism mounted on the printing unit and a first cam having a curved surface for connecting and disconnecting the printing unit to and from the communication cable. 2. A curved surface area of the first cam to be brought into contact with the first cam is provided separately as a second cam, and the second cam is swingably attached to the first cam to serve as the reaction force absorbing means. 2. A marking device for cable identification according to claim 1. 3. The cable identification marking device according to claim 1, wherein the lifting unit and the printing unit are mounted on a rotating body that rotates in synchronization with a moving speed of the communication cable. . 4. The travel guide comprises a pair of guide portions capable of sandwiching the communication cable, wherein the guide portion on which the printing portion is located is a fixed side, and the other side is a movable side. The cable identification marking device according to claim 1, wherein: 5. The marking apparatus according to claim 1, wherein the moving amount detecting means includes a direction detecting unit, and outputs a total passing amount in a sending direction.