CN118111296A - Preparation method of reverse order meter header and small-section long optical cable - Google Patents

Abstract

The invention discloses a reverse-order meter header and a preparation method of a small-section long optical cable, which belong to the technical field of optical cable preparation and comprise a rotating assembly and a stirring assembly, wherein the rotating assembly comprises a first rotating shaft, a first meter gear, a second meter gear and a third meter gear, a first transmission mechanism is arranged between the stirring assembly and the first meter gear, a second transmission mechanism is arranged between the stirring assembly and the second meter gear, and a third transmission mechanism is arranged between the second meter gear and the third meter gear. According to the reverse sequence rice header, the transmission mode between the original rice headers is changed, so that the number of teeth on the third rice counting gear can be unequal to 10, the number of teeth on the third rice counting gear is changed, the cable mark printing of hundred meters is realized, the application range of the reverse sequence rice header is greatly increased, meanwhile, the reverse sequence rice header can be used for production at a constant speed in the cable production process, the problems of continuous speed reduction, speed increase and the like in the production process are avoided, and the overall production efficiency of the cable is improved.

Description

Preparation method of reverse order meter header and small-section long optical cable

Technical Field

The invention belongs to the technical field of optical cable preparation, and particularly relates to a preparation method of a reverse order meter header and a small-section long optical cable.

Background

High degree of customization is one of the features of cable products and cable manufacturers often need to produce specific models, sizes, and segment lengths and numbers of cables according to customer needs. Meanwhile, in order to facilitate the use of the optical cable, the length of each cable is often limited. Common cable reels are 3km, 4km, 6km and the like.

The conventional cable production flow is as follows: starting up production, cutting off the cable for a period of time from the production to the set section length, replacing the reel, carrying out speed-up production to the next set section length, cutting off the cable, replacing the reel, and circulating until all cable production is completed. Meanwhile, after the production is finished, a tester performs test pretreatment on each optical cable, cleans redundant outer jackets, sleeves, ointments, ink and the like, exposes the end optical fibers, and performs attenuation test on each optical fiber.

When a customer is required to customize an optical cable with a 0.5km coil length, the total coil number under the same contract can be increased, so that continuous speed reduction, coil replacement, speed increase and the like in the production process are caused, fluctuation of the production diameter of the optical cable is increased, and continuous cable stripping, testing and the like are required. Meanwhile, in the testing process, the OTDR with the length below 1km is low in testing accuracy, and the production efficiency, the testing efficiency and the testing accuracy of the optical cable are seriously affected.

Disclosure of Invention

Aiming at one or more of the defects or improvement demands of the prior art, the invention provides a preparation method of a reverse order meter header and a small-section long optical cable, which is used for solving the problems that the production efficiency of the optical cable is influenced due to frequent speed reduction and speed increase when the small-section long optical cable is produced by the existing production mode.

To achieve the above object, the present invention provides a reverse order rice header comprising:

the rotating assembly and the poking assembly;

The rotating assembly comprises a first rotating shaft, and a first metering gear, a second metering gear and a third metering gear are rotatably arranged on the first rotating shaft;

The first transmission mechanism is arranged between the stirring component and the first metering gear, the second transmission mechanism is arranged between the stirring component and the second metering gear, the third transmission mechanism is arranged between the second metering gear and the third metering gear, and the transmission ratio of the third transmission mechanism is the same as the number of teeth on the third metering gear.

As a further improvement of the invention, the third transmission mechanism comprises a rotation bayonet lock and a transmission gear which are arranged on the second metering gear;

one end of the rotary bayonet lock is connected with the second metering gear, and the other end of the rotary bayonet lock extends out towards the radial direction of the second metering gear;

The transmission gear and the second metering gear are eccentrically arranged, a plurality of swinging grooves are uniformly distributed on the transmission gear along the radial direction of the transmission gear, at least part of the rotation bayonet lock and the transmission gear fall into the swinging grooves when intersecting, and the number of the swinging grooves is the same as the number of teeth on the third metering gear.

As a further improvement of the invention, the rotary bayonet lock is in a shape of a Pi, the rotary bayonet lock comprises a first connecting part, a bearing part and a second connecting part, the first connecting part is connected with the second metering gear, the bearing part is exaggeratedly arranged on one side tooth surface of the transmission gear, and the second connecting part can partially extend into the swinging groove.

As a further improvement of the invention, the second metering gear is provided with a lap joint ring side by side, and the rotary bayonet lock is connected with the lap joint ring;

And a lap joint groove is formed in the tooth surface between every two adjacent swinging grooves, the periphery of the lap joint ring is in fit with the lap joint groove, and the cambered surface radius of the lap joint ring is the same as that of the lap joint groove.

As a further improvement of the invention, the poking assembly comprises a poking rod, wherein one end of the poking rod swings, the poking rod is connected with a poking claw, and the poking claw is arranged towards the rotating assembly;

The first transmission mechanism comprises a first poking tooth arranged on the poking claw, a first poking disc is arranged on one side of the first metering gear, and the first poking tooth extends towards the first poking disc;

The first poking disc is radially provided with a plurality of first poking grooves, and the first poking teeth are connected with the first poking grooves in a swinging mode.

As a further improvement of the invention, a pusher dog torsion spring is arranged between the pusher dog and the pusher dog, and the pusher dog torsion spring is arranged in a compression way.

As a further improvement of the invention, the second transmission mechanism comprises a second poking tooth arranged on the poking claw, one side of the second metering gear is provided with a second poking disc, and a plurality of second poking grooves are radially arranged on the second poking disc;

the second poking teeth extend towards the second poking disc, an absence groove is arranged between the two first poking grooves, and the extending length of the second poking teeth towards the second poking disc is smaller than that of the first poking teeth towards the first poking disc.

As a further improvement of the invention, the invention further comprises a mounting base, the rotating assembly and the stirring assembly are both arranged in the mounting base, a second rotating shaft is arranged on the mounting base, the stirring rod is connected with the second rotating shaft, and the second rotating shaft is connected with an external drive.

As a further improvement of the present invention, the teeth numbers on the first counter gear, the second counter gear and the third counter gear are arranged in reverse order.

As a further improvement of the invention, the first rotating shaft is also provided with a first locking mechanism and a first unlocking mechanism;

The deflector rod is provided with a crimping mechanism towards the first unlocking mechanism, and when the crimping mechanism presses down the first unlocking mechanism, the first locking mechanism is synchronously unlocked;

The first locking mechanism is used for synchronously locking the first metering wheel, the second metering wheel and the third metering wheel, the first locking mechanism is used for synchronously stretching and contracting with the first unlocking mechanism, and the first metering wheel, the second metering wheel and the third metering wheel are unlocked when the first locking mechanism is contracted.

The application also comprises a preparation method of the small-section long optical cable, which comprises the following steps:

S1, acquiring production requirements, and acquiring the cable length of each cable according to the production requirements;

s2, producing an optical cable, marking by using the reverse sequence meter header, selecting a third meter wheel with set tooth number according to the cable length of each cable, and coiling and rolling the cable;

s3, performing defect detection on the cable;

s4, rewinding the produced reverse sequence meter mark cables into sequence meter mark cables, coiling the sequence meter mark cables onto different reels according to the set cable length, and cutting the cables.

The above-mentioned improved technical features can be combined with each other as long as they do not collide with each other.

In general, the above technical solutions conceived by the present invention have the beneficial effects compared with the prior art including:

(1) According to the reverse sequence meter mark head, the transmission mode between the original meter mark heads is changed, the third transmission mechanism is arranged between the second meter counting gear and the third meter counting gear, the transmission ratio between the second meter counting gear and the third meter counting gear is changed by utilizing the third transmission mechanism, so that the number of teeth on the third meter counting gear can be unequal to 10, the wire mark of hundred-meter grade is realized by changing the number of teeth on the third meter counting gear, the mark printing process of a small-section long wire is completed, and the application range of the reverse sequence meter mark head is greatly increased. Meanwhile, the reverse sequence meter header can be used for production at a constant speed in the cable production process, and the cable is coiled according to the set cable length after the whole OTDR test is completed, so that the problems of continuous speed reduction, speed increase and the like in the production process are avoided, the accuracy of the OTDR test is improved, and the whole production efficiency of the cable is improved.

(2) According to the reverse sequence rice marking head, the deflector rod and the deflector pawl are arranged, the first deflector tooth and the second deflector tooth are arranged on the deflector pawl, the lengths of the first deflector tooth and the second deflector tooth are correspondingly adjusted, meanwhile, the first deflector disc on one side of the first meter counting gear is arranged in a form with the first deflector groove and the position-lacking groove, when the first deflector tooth dials the first meter counting gear for one circle, the first deflector tooth falls into the position-lacking groove, and at the moment, the second deflector tooth contacts with the second deflector groove at the second meter counting gear, so that the rotation of the second meter counting gear is realized, the ten-bit system in one direction is realized, and the meter counting of a cable according to the production length is realized.

(3) According to the reverse order meter mark head, the rotary bayonet lock and the first transmission gear are arranged between the second meter counting gear and the third meter counting gear, the swinging grooves are formed in the first transmission gear, when the rotary bayonet lock rotates for one circle along with the second meter counting gear, the rotary bayonet lock can correspondingly fall into the swinging grooves in the first transmission gear, hundred-meter stirring on the third meter counting gear is achieved through the fact that the plurality of swinging grooves are uniformly formed in the first transmission gear, and meanwhile the swinging grooves in the first transmission gear can be adjusted according to requirements, so that a cable meter Mi Yinbiao with a small section length of 500 meters, 600 meters and the like is achieved.

(4) According to the reverse sequence meter mark head, through the transmission of the rotary bayonet lock, the first transmission gear, the second transmission gear and the transmission belt, the variable-speed transmission between the second meter counting gear and the second meter counting gear is realized by utilizing the eccentric cooperation of the rotary bayonet lock and the first transmission gear, the counting of the small sections of 500 meters, 600 meters and the like is realized, the change of the rotation center is realized through the transfer transmission of the second transmission gear and the transmission belt, the rotation of the third meter counting gear around the first rotation shaft is realized, the stable rotation of each meter counting gear is ensured, the alignment of units, tens and hundreds of digits to the cable outer sheath during the meter counting of a mark is ensured, and the accuracy and the definition of the mark of the cable mark are ensured.

(5) According to the reverse sequence meter mark head, the teeth on each meter gear are arranged in reverse sequence, so that marks are printed in reverse sequence modes of 500, 499, 498 and the like in the process of marking the cable, when the cable is produced and tested, the cable is rearranged on the disk according to the sequence of 0, 1 and 2 when the cable is divided according to the set length, the requirement of customers for arranging the meter marks from small to large is met, common construction habits are met, and the use requirement of customers is facilitated.

(6) According to the preparation method of the small-section long optical cable, the counter-sequence rice mark head is adopted to carry out counter-sequence mark printing in the production process of the cable, meanwhile, counter-sequence mark can be carried out according to the set cable length, after the production is completed, the cable can be subjected to OTDR test in a concentrated mode, the accuracy of OTDR detection is ensured, the segmented coiling is carried out after the whole test is completed, the problem that the disc needs to be replaced while production is carried out in the conventional production process is avoided, the problems of continuous speed rising and speed reducing in the production process are avoided, and the production efficiency and the production quality of the cable are ensured.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a reverse order rice header according to an embodiment of the present invention;

FIG. 2 is a schematic view of the overall structure of a lever according to an embodiment of the present invention;

FIG. 3 is a schematic view of the overall structure of a finger in an embodiment of the present invention;

FIG. 4 is a schematic view of a first counter gear according to an embodiment of the present invention;

FIG. 5 is a schematic view of a second counter gear according to an embodiment of the present invention;

FIG. 6 is a schematic view of a third counter gear according to an embodiment of the present invention;

FIG. 7 is a schematic side view of a second counter gear according to an embodiment of the present invention;

Fig. 8 is a diagram of a cable test prepared by the method of preparing a short length of fiber optic cable of the present invention.

Like reference numerals denote like technical features throughout the drawings, in particular:

1. A mounting base; 2. a deflector rod; 3. a pusher dog; 4. a first set of teeth; 5. a second shifting tooth; 6. a first rotation shaft; 7. a first metering gear; 8. a second metering gear; 9. a third metering gear; 10. rotating the bayonet lock; 11. a first transmission gear; 12. a second transmission gear; 13. a drive belt; 14. a swinging groove; 15. a lap ring; 16. overlapping grooves; 17. a first dial; 18. a notch groove; 19. a second toggle plate; 20. and a second rotation shaft.

Detailed Description

The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples:

Referring to fig. 1 to 8, the reverse order meter header in the preferred embodiment of the present invention includes a rotating assembly and a stirring assembly, wherein the rotating assembly includes a first rotating shaft 6, a first metering gear 7, a second metering gear 8 and a third metering gear 9 are disposed on the first rotating shaft 6, a first transmission mechanism is disposed between the stirring assembly and the first metering gear 7, a second transmission mechanism is disposed between the stirring assembly and the second metering gear 8, a third transmission mechanism is disposed between the second metering gear 8 and the third metering gear 9, and the transmission ratio of the third transmission mechanism is the same as the number of teeth on the third metering gear 9.

Specifically, the first metering gear 7 is used for single-digit metering, the second metering gear 8 is used for tens metering, and the third metering gear 9 is used for hundreds metering. According to the reverse-order meter header, the transmission mode of the original meter header decimal is changed, the third transmission mechanism is arranged between the second meter gear 8 and the third meter gear 9, the transmission ratio between the second meter gear 8 and the third meter gear 9 is changed through the third transmission mechanism, so that the number on the third meter gear 9 can be changed according to the requirement, the decimal structure which is the same as that of the second meter gear 8 and the third meter gear 9 is not required, and the automatic meter Mi Yin standard of a small-section long optical cable is realized by setting the number of teeth on the third meter gear 9 to be 0-5, so that the application scope of the reverse-order meter header is greatly increased. Meanwhile, the reverse sequence meter header can realize automatic metering of the small section length without carrying out a slow disc changing process after reaching the set length, ensures that the cable production is carried out at a constant rate, and greatly improves the overall production efficiency of the cable.

Further, in the present application, the number of teeth on the first metering gear 7, the second metering gear 8 and the third metering gear 9 refers to the number printed on the circumference of each metering gear, and by rotating each metering gear, different numbers on the metering gears face the cable jacket, so as to implement the meter Mi Yinbiao on the cable jacket. Preferably, in the application, the first metering gear 7 is uniformly provided with 0-9 raised numbers, the second metering gear 8 is uniformly provided with 0-9 raised numbers, and the third metering gear 9 is uniformly provided with 0-5 raised numbers.

Further, as a preferred embodiment of the present application, the third transmission mechanism of the present application includes a rotation bayonet 10 provided on the second counter gear 8 and a first transmission gear 11; one end of the rotation bayonet lock 10 is connected with the second metering gear 8, and the other end extends out towards the radial direction of the second metering gear 8; the first transmission gear 11 and the second metering gear 8 are eccentrically arranged, a plurality of swinging grooves 14 are uniformly distributed along the radial direction of the transmission gear, at least part of the rotation bayonet lock 10 falls into the swinging grooves 14 when intersecting with the rotation gear, and the number of teeth on the swinging grooves 14 is the same as that on the third metering gear 9. When the second transmission mechanism drives the second metering gear 8 to rotate, the rotation bayonet lock 10 rotates one circle along with the rotation bayonet lock 10, when the rotation bayonet lock 10 falls into one swinging groove 14 of the first transmission gear 11 correspondingly, the rotation bayonet lock 10 drives the first transmission gear 11 to swing by a certain angle along with the rotation bayonet lock, and due to the eccentric arrangement of the first transmission gear 11, the rotation bayonet lock 10 can only drive the first transmission gear 11 to swing by a certain angle and then fall off from the swinging groove 14, at the moment, the rotation bayonet lock 10 rotates one circle, and the first transmission gear 11 rotates by a set angle; when the rotation bayonet lock 10 rotates the second circle, rotate bayonet lock 10 and fall into swing groove 14 once more, first drive gear 11 rotates the settlement angle again, through dividing into the many minutes with first drive gear 11, realizes rotating bayonet lock 10 and rotates round, and the purpose that the number of teeth of third meter counter gear 9 changes once.

According to the application, the rotary bayonet lock 10 and the first transmission gear 11 are arranged, so that the rotary bayonet lock 10 is intermittently matched with the first transmission gear 11 in the process of rotating for one circle, the first transmission gear 11 is not driven to move by the conventional rotation of the rotary bayonet lock 10, and the problem that marks cannot be printed due to random rotation of the third metering gear 9 is avoided. Only when the second metering gear 8 rotates for one circle, the first transmission gear 11 correspondingly rotates for a certain angle, so that the change of the number of teeth of the third metering gear 9 is realized, the ten-position hundred-position system is realized, and the number of teeth on the third metering gear 9 can be set to be different according to requirements.

Further preferably, the number of the swinging grooves 14 on the first transmission gear 11 is 6, and the rotation bayonet 10 rotates one turn to drive the first transmission gear 11 to rotate 60 degrees. In the application, the second metering gear 8 is shifted once, and the rotary bayonet 10 rotates 36 degrees. When the rotary bayonet lock 10 swings 36 degrees along with the second metering gear 8, the end part of the rotary bayonet lock 10 contacts with the opening of the swinging groove 14, and when the rotary bayonet lock 10 swings next 36 degrees along with the second metering gear 8, the end part of the rotary bayonet lock 10 contacts with the bottom of the swinging groove 14, and the first transmission gear 11 correspondingly rotates for a certain angle; when the rotation bayonet lock 10 swings by 36 degrees along with the second meter counting gear 8, the rotation bayonet lock 10 is separated from the swinging groove 14 and does not drive the first transmission gear 11 to rotate, only the last swinging of the rotation bayonet lock 10 along with the second meter counting gear 8 can realize one swinging of the first swinging gear through the setting mode, the final decimal swinging is guaranteed to be in a position of hundreds, random swinging of the third meter counting gear 9 caused by the second meter counting gear 8 in the swinging process is avoided, digital alignment cables on the third meter counting gear 9 are guaranteed, and accurate and clear marking of the cables is realized.

The dial is generally divided into different numbers by a conventional system wheel disc or a watch and the like, and the different system changes are realized through the different numbers, but the transmission modes can lead to ten hundred or second time sharing to follow up, the difference is only that the swing amplitude is different, the accuracy of the number of the mark is ensured by the cable mark printing in the application, and when the second meter gear 8 rotates, the third meter gear 9 does not rotate; only when the second metering gear 8 jumps from 0 to 9, the third metering gear 9 correspondingly shifts one position, so that the ten-position to hundred-position backset is realized. Specifically, the backset in the application means that ten digits are driven to rotate after one turn of the units, and ten digits are sequentially reduced from 9 to 8; and after ten-bit rotation for one circle, hundred bits are sequentially reduced.

Further preferably, in the present application, a second transmission gear 12 is disposed on the side of the third metering gear 9 facing the second metering gear 8, the second transmission gear 12 is coaxially connected with the third metering gear 9, and a transmission belt 13 is connected between the first transmission gear 11 and the second transmission gear 12. Because the first transmission gear 11 and the third metering gear 9 are eccentrically arranged, in order to ensure the normal rotation of the third metering gear 9, the application transmits the rotation of the first transmission gear 11 to the second transmission gear 12 through the transmission belt 13, and then drives the third metering gear 9 to rotate through the second transmission gear 12, so that the rotation of the third metering gear 9 around the first rotation shaft 6 is realized.

Further, as a preferred embodiment of the present application, the rotation bayonet 10 is in a shape of "pi", and the rotation bayonet 10 includes a first connection portion, a receiving portion and a second connection portion, which are sequentially connected, wherein the first connection portion is connected with the second metering gear 8, the receiving portion is straddled on one side of the tooth surface of the transmission gear, and the second connection portion can partially extend into the swinging groove 14. As described above, the rotation bayonet 10 in the present application cannot synchronously drive the first transmission gear 11 to rotate at any time during rotation, and only when the second metering gear 8 performs the jump from 0 to 9, the first transmission gear 11 rotates by an angle. Therefore, the rotary bayonet lock 10 is set as a 'II', when the rotary bayonet lock 10 swings along with the second metering gear 8, the second connecting part stretches into the swinging groove 14 and moves along the opening direction of the swinging groove 14, at the moment, the first transmission gear 11 does not rotate, when the rotary bayonet lock 10 rotates along with the swinging groove, the second connecting part falls on the bottom of the swinging groove 14, then the second connecting part drives the first transmission gear 11 to rotate by an angle, and then the second connecting part is separated from the first transmission gear 11 along the opening direction of the swinging groove 14, and the next circulation rotation is entered.

Further, as an alternative embodiment of the present application, the second connection part is an elastic member, and the first transmission gear 11 is provided with a damper, when the second connection part falls into the swinging groove 14, the rotation bayonet 10 swings 60 ° with the first connection part, the second connection part is blocked by the first transmission gear 11 to have a deformation force greater than the damper on the first transmission gear 11, and the first transmission gear 11 correspondingly rotates by an angle. In this way, the first transmission gear 11 can be ensured not to swing randomly in the swinging process of the rotary bayonet 10, and the rotation of the first transmission gear 11 can be realized only when the rotary bayonet 10 rotates with the second metering gear 8 for the last time, so that the one-hundred-position system is realized.

Further preferably, in the application, the second metering gear 8 is provided with a lap joint ring 15 side by side, and the rotary bayonet 10 is connected with the lap joint ring 15; meanwhile, a lap groove 16 is arranged at the tooth surface between two adjacent swinging grooves 14, the periphery of the lap ring 15 is adhered to the lap groove 16, and the cambered surface radius of the lap ring 15 is the same as the cambered surface radius of the lap groove 16. The lap ring 15 is used for driving the rotation bayonet lock 10 to rotate, and simultaneously the lap ring 15 and the lap groove 16 are matched to ensure that the rotation bayonet lock 10 stably drives the first transmission gear 11, ensure that the rotation bayonet lock 10 stably falls into the swinging groove 14 when rotating each time, and realize accurate transmission of the reverse order meter header.

Further preferably, as a preferred embodiment of the present application, the toggle assembly in the present application includes a toggle lever 2 with one end thereof being swingably disposed, and a toggle pawl 3 is provided on the toggle lever 2, the toggle pawl 3 being disposed toward the rotating assembly. This first drive mechanism is including setting up the first tooth 4 of dialling on the thumb 3, first meter rice gear 7 one side is equipped with first dial 17, first tooth 4 stretches out towards first dial 17, a plurality of first grooves of dialling of radial equipartition of this first dial 17, first tooth 4 is connected with a plurality of first groove wobbles of dialling, when the lifter 2 swings, first tooth 4 moves towards first dial 17, first tooth 4 swings and connects first groove of dialling, first dial 17 drives first meter rice gear 7 and rotates certain angle, realize the change of the number of teeth on the first meter rice gear 7.

Preferably, a torsion spring is further arranged between the deflector rod 2 and the deflector pawl 3, and the torsion spring is used for pressing the deflector pawl 3, so that the deflector pawl 3 is pressed down towards each metering gear when the deflector rod 2 swings.

Further, the second transmission mechanism comprises a second poking tooth 5 arranged on the poking claw 3, a second poking disc 19 is arranged on one side of the second metering gear 8, a plurality of second poking grooves are radially arranged on the second poking disc 19, the first poking tooth 4 stretches out towards the second poking disc 19, an absence groove 18 is arranged between the two first poking grooves, and the stretching length of the second poking tooth 5 towards the second poking disc 19 is smaller than that of the first poking tooth 4 towards the first poking disc 17. When the first metering gear 7 rotates for one circle, the first shifting tooth 4 swings and falls into the notch 18, the first shifting tooth 4 continuously moves towards the axis of the first shifting disc 17, at this time, the second shifting tooth 5 is connected with the second shifting groove on the surface of the second shifting disc 19, and the second shifting disc 19 is driven to rotate, so that the change of the number of teeth on the second metering gear 8 is realized.

Still preferably, the inverted rice header further comprises a mounting base 1, and the rotating component and the stirring component are both arranged in the mounting base 1. Specifically, the second rotating shaft 20 is provided on the mounting base 1, the lever 2 is rotatably connected to the second rotating shaft 20, and the second rotating shaft 20 is connected to an external drive. When an external cable is used for producing one meter, the external drive correspondingly drives the second rotating shaft 20 to rotate, the deflector rod 2 swings once, and the second deflector tooth 5 correspondingly dials the first meter gear 7 to rotate once, so that the change of meter mark on the surface of the cable is realized.

Further, the teeth numbers on the first counter gear 7, the second counter gear 8 and the third counter gear 9 are arranged in reverse order in the present application. Specifically, taking the first metering gear 7 as an example, the numbers of teeth on the first metering gear 7 are arranged in the order of 9~0 anticlockwise, and when the first poking tooth 4 moves towards the first poking disc 17, the numbers on the first metering gear 7 are changed in the order of 9, 8 and 7, so as to realize reverse sequence marking on a cable.

Further, as a preferred embodiment of the present application, the first rotating shaft 6 is further provided with a first locking mechanism and a first unlocking mechanism, the deflector rod 2 is provided with a pressing mechanism towards the first unlocking mechanism, and when the pressing mechanism presses down the first unlocking mechanism, the first locking mechanism is synchronously unlocked; the first locking mechanism synchronously locks the first meter wheel, the second meter wheel and the third meter wheel, and the first locking mechanism and the first unlocking mechanism are synchronously telescopic, and unlock the first meter wheel, the second meter wheel and the third meter wheel when the first locking mechanism is contracted. In order to ensure that the standard of the reverse order meter mark head is correct, the numbers on the reverse order meter mark head cannot be changed randomly when the conventional number of teeth is unchanged, when the deflector rod 2 swings, the first unlocking mechanism correspondingly presses down, the first locking mechanism correspondingly unlocks, and the first meter wheel, the second meter wheel and the third meter wheel can rotate around the first rotating shaft 6 so as to realize the change of the numbers of teeth on each meter wheel.

Further, aiming at the reverse order meter header in the application, the application comprises a preparation method of a small-section long optical cable, which comprises the following steps:

s1, acquiring production requirements, and acquiring the cable length of each cable according to the production requirements; in particular, the production requirements include the type, size, configuration of the cable required, the length of the split cable on each reel, etc.

S2, producing an optical cable, marking by using the reverse sequence meter header, selecting a third meter wheel with set tooth number according to the cable length of each cable, and coiling and rolling the cable; when a customer needs to take 500 meters as a disc, correspondingly selecting a third meter wheel of 0-4, and printing meter figures of 499-0 on the cable.

S3, performing defect detection on the cable; before defect detection is carried out on the cable, redundant sheaths, sleeves, ointments, printing ink and the like are cleaned, then the optical fiber is exposed, and the uniformity, defects, fracture, joint coupling and the like of the optical fiber are tested through an OTDR technology; and meanwhile, the comprehensive defect detection of the cable is realized by detecting the outer diameter, bulge, spark and the like of the sheath.

S4, rewinding the produced reverse sequence meter mark cables into sequence meter mark cables, coiling the sequence meter mark cables onto different reels according to the set cable length, and cutting the cables.

Specifically, the preparation method of the small-section long optical cable realizes the reverse sequence marking of the cable in the production process by adopting the reverse sequence meter marking head to meter the meter mark, and can meter the meter according to the set cable length at the same time.

The cable production is carried out in a conventional production mode and the preparation method of the small-section long optical cable in the application, and the test time of each type of optical cable is respectively obtained, as shown in fig. 8. From the data in the figure, it can be seen that when the cable with a longer commercial section (length of each cable) is produced, such as 4000m and 2000m, the total test time of the preparation method in the application is not significantly improved compared with the conventional test mode, and when the cable with a shorter commercial section is produced, such as 500m, the preparation method in the application can significantly improve the test efficiency of the cable; particularly, when cables with large cores are used, the test time can be obviously increased by frequent disc replacement and multiple tests, and the overall production efficiency of the cables is affected.

It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.

Claims (10)

1. A reverse order rice header, comprising:

the rotating assembly and the poking assembly;

The rotating assembly comprises a first rotating shaft, and a first metering gear, a second metering gear and a third metering gear are rotatably arranged on the first rotating shaft;

The first transmission mechanism is arranged between the stirring component and the first metering gear, the second transmission mechanism is arranged between the stirring component and the second metering gear, the third transmission mechanism is arranged between the second metering gear and the third metering gear, and the transmission ratio of the third transmission mechanism is the same as the number of teeth on the third metering gear.

2. The reverse order meter header of claim 1, wherein the third transmission mechanism comprises a rotation bayonet and a first transmission gear provided on the second meter gear;

one end of the rotary bayonet lock is connected with the second metering gear, and the other end of the rotary bayonet lock extends out towards the radial direction of the second metering gear;

The first transmission gear and the second metering gear are eccentrically arranged, the transmission gear is uniformly provided with a plurality of swinging grooves along the radial direction of the transmission gear, at least part of the rotation bayonet lock and the transmission gear fall into the swinging grooves when intersecting, and the number of the swinging grooves is the same as the number of teeth on the third metering gear.

3. The reverse order meter header of claim 2, wherein a second transmission gear is arranged on one side of the third meter gear facing the second meter gear, the second transmission gear is coaxially connected with the third meter gear, and a transmission belt is connected between the first transmission gear and the second transmission gear.

4. The reverse order meter head according to claim 2, wherein the rotation bayonet comprises a first connecting portion, a receiving portion and a second connecting portion, the first connecting portion is connected with the second meter gear, the receiving portion is arranged on one side of the tooth surface of the transmission gear in a straddling manner, and the second connecting portion can partially extend into the swinging groove.

5. The reverse order meter header according to any one of claims 2 to 4, wherein a lap joint ring is arranged on the second meter gear side by side, and the rotation bayonet lock is connected with the lap joint ring;

And a lap joint groove is formed in the tooth surface between every two adjacent swinging grooves, the periphery of the lap joint ring is in fit with the lap joint groove, and the cambered surface radius of the lap joint ring is the same as that of the lap joint groove.

6. The reverse sequence rice header according to any one of claims 1 to 4, wherein the toggle assembly comprises a toggle lever, the toggle lever is arranged in a swinging manner at one end of the toggle lever, a toggle claw is connected to the toggle lever, and the toggle claw is arranged towards the rotating assembly;

The first transmission mechanism comprises a first poking tooth arranged on the poking claw, a first poking disc is arranged on one side of the first metering gear, and the first poking tooth extends towards the first poking disc;

The first poking disc is radially provided with a plurality of first poking grooves, and the first poking teeth are connected with the first poking grooves in a swinging mode.

7. The reverse sequence rice header of claim 6, wherein the second transmission mechanism comprises a second poking tooth arranged on the poking claw, a second poking disc is arranged on one side of the second rice poking tooth, and a plurality of second poking grooves are radially arranged on the second poking disc;

the second poking teeth extend towards the second poking disc, an absence groove is arranged between the two first poking grooves, and the extending length of the second poking teeth towards the second poking disc is smaller than that of the first poking teeth towards the first poking disc.

8. The reverse sequence rice head according to claim 6, further comprising a mounting base, wherein the rotating assembly and the poking assembly are both arranged in the mounting base, a second rotating shaft is arranged on the mounting base, the poking rod is connected with the second rotating shaft, and the second rotating shaft is connected with an external drive.

9. The reverse order meter header of claim 1, wherein the number of teeth on the first meter gear, the second meter gear, and the third meter gear are arranged in reverse order.

10. The preparation method of the small-section long optical cable is characterized by comprising the following steps of:

S1, acquiring production requirements, and acquiring the cable length of each cable according to the production requirements;

s2, producing an optical cable, marking by using the reverse sequence meter mark head in any one of claims 1-9, selecting a third meter wheel with set tooth number according to the cable length of each cable, and coiling and winding the cable;

s3, performing defect detection on the cable;

s4, rewinding the produced reverse sequence meter mark cables into sequence meter mark cables, coiling the sequence meter mark cables onto different reels according to the set cable length, and cutting the cables.