Automatic winding and reel changing method

Abstract

The present invention discloses an automatic wire winding and reel changing method, which belongs to the field of cable winding technology. It is used to control a double-reel wire winding device to automatically wind up the wire. The double-reel wire winding device includes a first wire winding reel and a second wire winding reel spaced apart along a second direction. A traction mechanism is provided between the first wire winding reel and the second wire winding reel, and a cutting mechanism and a clamping mechanism are provided on the reel edge of at least one of the first wire winding reel and the second wire winding reel. The automatic wire winding and reel changing method in the present application sets the moving trajectory of the traction mechanism so that the moving distance and moving position of the traction mechanism are controllable. When the cable production rate is controllable, the time point of the first winding length and the moving time of the traction mechanism during the reel change can be clearly known, so as to calculate the traction length of the cable during the reel change process of the traction mechanism. In this way, the cable length on the reel during the reel change can be accurately controlled, thereby increasing the metering accuracy of the double-reel wire winding device.

Description

Technical Field

[0001] The invention belongs to the technical field of cable winding, and in particular relates to an automatic cable winding and reel changing method. Background Art

[0002] With the advent of the 5G era and the subsequent rapid development of mobile internet, the demand for information technology in households, businesses, and public facilities continues to grow, and the optical communications market remains robust. Major communications manufacturers both domestically and internationally are actively implementing expansion and international expansion strategies. With the advent of Industry 4.0 and rising labor costs, improving production efficiency and achieving highly automated production have become key areas of focus for optical cable equipment research and development.

[0003] During the production and processing of optical cables, they need to be wound and arranged. Currently, the most automated system is the dual-reel automatic winding and arrangement system. When the first reel is finished winding and arranging, it automatically switches to the second reel to take up the cable. However, the reel-changing mode of existing reel-changing equipment is unstable, and cable winding failures are prone to occur during the reel-changing process, requiring the production process to be restarted, affecting production efficiency. At the same time, the difficulty in determining the reel-changing node leads to inaccurate cable metering, affecting the actual winding length on the reel and affecting the delivery of cable products. Summary of the Invention

[0004] In response to one or more of the above-mentioned defects or improvement needs in the prior art, the present invention provides an automatic wire taking-up and reel changing method to solve the problem of inaccurate meter counting caused by uncontrollable wire taking-up distance in the existing double-reel automatic wire taking-up.

[0005] To achieve the above-mentioned object, the present invention provides an automatic wire take-up and reel-changing method, which is used to control a double-reel wire take-up device to automatically take up wire, wherein the double-reel wire take-up device includes a first wire take-up reel and a second wire take-up reel spaced apart along a second direction, a traction mechanism is provided between the first wire take-up reel and the second wire take-up reel, and a cutting mechanism and a clamping mechanism are provided on the reel edge of at least one of the first wire take-up reel and the second wire take-up reel; the automatic wire take-up and reel-changing method comprises the following steps:

[0006] S1. The traction mechanism is moved above the first take-up drum. The traction mechanism and the first take-up drum are arranged parallel to each other along a first direction. The traction mechanism pulls the cable to the first take-up drum. The first take-up drum reels and winds the cable.

[0007] S2. Obtaining a first winding length of the cable wound on the first take-up reel. When the first winding length is not less than a preset length, the traction mechanism moves along a first direction to an edge of the first take-up reel.

[0008] S3, the traction mechanism moves along the second direction to above the second take-up drum, and the traction mechanism moves along the first direction to the first set position while moving along the second direction;

[0009] S4. The traction mechanism moves along the first direction to the edge of the second take-up drum, the clamping mechanism clamps the cable, the cutter mechanism rotates and cuts the cable, and the cable is wound on the second take-up drum.

[0010] As a further improvement of the present invention, in step S1, the linear speed of the traction mechanism for winding on the first take-up reel is V1, in step S2, the preset linear speed of the traction mechanism when it reaches the first winding length and moves to the edge of the first take-up reel is V2, in step S3, the linear speed of the traction mechanism along the first direction when it moves above the second take-up reel is V1, and in step S4, the preset linear speed of the traction mechanism when it moves along the first direction to the edge of the second take-up reel is V2, wherein V1 is less than V2.

[0011] As a further improvement of the present invention, in step S2, the first winding length is S2, the total winding length is set to S3, and the cable length in meters during the process of the traction mechanism switching from the first take-up reel to the second take-up reel and the cutter mechanism cutting the cable is S1. The calculation method of the first winding length S2 is:

[0012] S2=S3-S1 (Formula 1).

[0013] As a further improvement of the present invention, the calculation method of S1 is:

[0014] S1=((LM) / V2+(KM) / V1+(KM) / V2)*V (Formula 2)

[0015] The limit positions of the traction mechanism at both ends of the first take-up reel are L and M respectively, the first set position of the traction mechanism on the second take-up reel is K, and the transmission speed of the cable is V.

[0016] As a further improvement of the present invention, the linear speed of the traction mechanism winding on the first take-up drum is calculated as follows:

[0017] V1=(H*V* ) / π*D (Formula 3)

[0018] Wherein, H is the displacement distance of the cable along the first direction when it is wound around the first take-up drum for one circle; D is the diameter of the first take-up drum; and G is the angle between the cable and the second direction when the traction mechanism is wound at a linear speed of V1.

[0019] As a further improvement of the present invention, the calculation method of G is:

[0020] G= (Formula 4).

[0021] As a further improvement of the present invention, the actual position of the traction mechanism on the first take-up reel in step S2 is O, and the actual moving linear velocity of the traction mechanism on the first take-up reel and the second take-up reel along the first direction in steps S2 and S4 is V3, and the calculation method of V3 is:

[0022] V3= (O+K-2M) / ((KM) / V2+(LM) / V2) (Formula 5).

[0023] As a further improvement of the present invention, the cable winding distance F on the first take-up drum is obtained by a meter counter, and the calculation method of F is:

[0024] F=A+π*(B+C)*(D / E) (Formula 6)

[0025] Wherein, A is the distance from the cable pay-out to the meter wheel, B is the meter wheel diameter, C is the cable diameter, D is the pulse count, and E is the number of pulses in one rotation of the meter wheel.

[0026] As a further improvement of the present invention, the outlet end of the cable is further provided with a dancing wheel.

[0027] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0028] In general, the above technical solutions conceived by the present invention have the following beneficial effects compared with the prior art:

[0029] (1) The automatic winding and reel-changing method of the present invention sets the moving trajectory of the traction mechanism and controls the traction mechanism to move to the first set position on the second winding reel, so that the moving distance and moving position of the traction mechanism are controllable. When the cable production rate is controllable, the time point of the first winding length and the time when the traction mechanism moves to the first set position point can be clearly known. In this way, the time when the cable is at the cutter mechanism of the second winding reel can be clearly known, and the cable traction length during the movement of the traction mechanism can be calculated. When the cable length is known when the traction mechanism changes reels, the first winding length can be obtained by subtracting the cable winding length during the reel-changing process from the set winding length. When the cable is wound to the first winding length, the reel is changed accordingly, and the cutter mechanism cuts it off, and the remaining part is wound onto the first winding reel. At this time, the winding length on the first winding reel is the set total winding length. In this way, the cable length on the winding reel can be accurately controlled when changing reels, thereby increasing the metering accuracy of the double-reel winding device.

[0030] (2) The automatic winding and reel-changing method of the present invention increases the speed of the traction mechanism during reel-changing, so that even if there are fluctuations and errors in the cable length during reel-changing, the cable winding length can be reduced by shortening the reel-changing time, so that the final winding length is close to the set length, ensuring that the cable winding length is within the set error range, greatly improving the winding accuracy, and ensuring the accuracy of the produced cable length to meet order requirements.

[0031] (3) The automatic winding and reel changing method of the present invention is uncontrollable because the position of the cable when it is wound to the first preset length is impossible to be exactly at the edge of the reel, resulting in changes in the actual moving distance of the traction mechanism, which makes the distance of the traction mechanism during the reel changing uncontrollable; the present application first sets the traction mechanism to move to the edge to reach the first winding length, thereby calculating the production length of the cable during the reel changing of the traction mechanism; then, by judging the position when the first winding length is reached during the actual winding process, the moving linear speed V3 of the traction mechanism at the actual winding point is calculated according to the preset linear speed V2, so that the distance the traction mechanism moves to the edge of the second winding reel at any position is equal to S1, thereby ensuring that after the cutter mechanism cuts the cable, the length of the cable wound on the first winding reel is equal to the set total winding length, thereby ensuring the winding accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 2. It is a schematic diagram of the reel-changing structure of the double-reel take-up device in an embodiment of the present invention;

[0033] Figure 2 It is a flow chart of the automatic wire take-up and reel changing method in an embodiment of the present invention.

[0034] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0035] 1. First take-up reel; 2. Second take-up reel; 3. Pulling mechanism; 4. Clamping mechanism; 5. Cutter mechanism. DETAILED DESCRIPTION

[0036] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only intended to illustrate the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0039] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0040] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0041] Example:

[0042] See also Figure 1 、 Figure 2The automatic winding reel-changing method in a preferred embodiment of the present invention is used to control a dual-reel winding device to automatically wind up. Specifically, the winding reel-changing device includes a first winding reel 1 and a second winding reel 2 spaced apart along a second direction, a traction mechanism 3 is provided between the first winding reel 1 and the second winding reel 2, and a cutting mechanism 4 and a clamping mechanism 5 are provided at the edge of at least one of the first winding reel 1 and the second winding reel 2. The automatic winding reel-changing method includes the following steps:

[0043] Step S1: The traction mechanism 3 is moved to above the first take-up drum 1. The traction mechanism 3 and the first take-up drum 1 are arranged parallel to each other along a first direction. The traction mechanism 3 pulls the cable to the first take-up drum 1. The first take-up drum 1 reels and winds the cable.

[0044] Step S2: obtaining a first winding length of the cable wound on the first take-up drum 1. When the first winding length is not less than a preset length, the traction mechanism 3 moves along a first direction to the edge of the first take-up drum 1.

[0045] Step S3: The traction mechanism 3 moves along the second direction to above the second take-up drum 2, and the traction mechanism 3 moves along the first direction to the first set position while moving along the second direction;

[0046] In step S4 , the traction mechanism 3 moves along the first direction to the edge of the second take-up drum 2 , the clamping mechanism 4 clamps the cable, the cutter mechanism 5 rotates and cuts the cable, and the cable is wound on the second take-up drum 2 .

[0047] The automatic wire winding and reel changing method of the present invention sets the movement trajectory of the traction mechanism 3 and controls the traction mechanism 3 to move to the first set position on the second take-up reel 2, so that the movement distance and movement position of the traction mechanism 3 are controllable. When the cable production rate is controllable, the time node of the first winding length and the time when the traction mechanism 3 moves to the first set position can be clearly known. In this way, the time when the cable moves to the cutter mechanism of the second take-up reel 2 can be clearly known, and the traction length of the cable during the movement of the traction mechanism 3 can be calculated. When the cable production length of the traction mechanism 3 is known during the preparation for reel change, the specific value of the first winding length can be obtained by subtracting the winding length of the cable during the reel change from the set winding length. When the cable is wound to the first winding length, the reel change process is carried out accordingly. When the cutter mechanism cuts, the remaining cable is wound onto the first take-up reel 1. At this time, the length of the wound cable on the first take-up reel 1 is exactly equal to the set total winding length. In this way, the cable length on the take-up reel during reel change can be accurately controlled, thereby increasing the metering accuracy of the double-reel take-up device.

[0048] Preferably, both the first and second take-up reels 1 and 2 are equipped with a cutting mechanism 4 and a clamping mechanism 5, allowing the cable to be wound back and forth between the first and second take-up reels 1 and 2. Winding on one reel only requires replacing the other. The traction mechanism 3 being located above the first or second take-up reel 1 or 2 indicates that the cable on the traction mechanism can be pulled normally onto both reels.

[0049] Preferably, the first direction in the present application is the axial direction of the first take-up reel 1 and the second take-up reel 2, and the second direction is the arrangement direction of the first take-up reel 1 and the second take-up reel 2. Optionally, the double-reel take-up device in the present application can be used for winding cables, casings, and other linear products or tubular products that need to be measured in meters. Furthermore, the traction mechanism 3 in the present application is installed above the first take-up reel 1 and the second take-up reel 2 through a gantry, and the movement of the traction mechanism 3 along the first direction and the second direction can be completed by the gantry. It is worth noting that when the cable is wound, the cable can be wound to the edge of the reel. When changing the reel, the limit positions L and M of the reel change are not the actual edges of the reel. It is necessary to reserve space for the clamping mechanism 4 and the cutting mechanism 5 to avoid accidental interference between the cable pulled on the traction mechanism 3 and the clamping mechanism 4 or the cutting mechanism 5.

[0050] Furthermore, in step S1 of the present application, the linear speed of the traction mechanism 3 when winding on the first take-up reel 1 is V1, in step S2, the preset linear speed of the traction mechanism 3 when moving to the edge of the first take-up reel 1 when reaching the first winding length is V2, in step S3, when the traction mechanism 3 moves to above the second take-up reel 2, the linear speed of the traction mechanism 3 along the first direction is V1, and in step S4, the preset linear speed of the traction mechanism 3 when moving along the first direction to the edge of the second take-up reel 2 is V2, and V1<V2. In the actual cable winding process, the cable winding process on the reel is relatively stable, while the traction mechanism 3 needs to move in the first direction and the second direction during the reel changing process, and needs to undergo clamping and cutting processes, which causes the cable winding at this time end to fluctuate easily. Therefore, the present application sets the moving linear speed of the traction mechanism 3 along the first direction during the reel changing to V2, so that the reel changing period lasts for a shorter time. When the cable production speed is constant, the cable production length during the reel changing period is shorter, so that the final winding length is closer to the set length, ensuring that the cable winding length is within the set error range, and greatly improving the winding accuracy. It is worth noting that when the traction mechanism 3 moves along the second direction to the second take-up reel 2, since there is a certain distance between the first take-up reel 1 and the second take-up reel 2, when moving along the first direction at a speed of V2, the traction mechanism 3 will cause the edge of the reel of the second take-up reel 2 to touch. Therefore, during this process, the traction mechanism moves along the first direction at a speed of V1 to ensure that the traction mechanism 3 is located in the winding area of ​​the second take-up reel 2 and will not contact the cutting mechanism 5 and the clamping mechanism 4 on the edge of the reel of the second take-up reel 2.

[0051] Furthermore, as a preferred embodiment of the present invention, in step S2 of the present application, the first winding length is S2, the total winding length is set to S3, and the cable length in meters during the process of the traction mechanism 3 switching from the first take-up drum 1 to the second take-up drum 2 and the cutter mechanism 5 cutting the cable is S1. The calculation method of the first winding length S2 is:

[0052] S2=S3-S1 (Formula 1).

[0053] During the actual winding process, the total winding length S3 will be set accordingly according to different customer needs. Without changing the winding drum size, cable production speed and traction mechanism movement speed, S1 is usually the set value. It is only necessary to adjust the first winding length S2 accordingly to ensure that the final length of the wound cable on the first winding drum 1 is equal to the set total winding length S3.

[0054] Furthermore, as a preferred embodiment of the present invention, the calculation method of S1 in this application is specifically as follows:

[0055] S1=((LM) / V2+(KM) / V1+(KM) / V2)*V (Formula 2)

[0056] The traction mechanism 3 has two end positions L and M on the first take-up reel 1, respectively; the traction mechanism 3 has a first set position K on the second take-up reel 2; and the cable transmission speed is V. To calculate the cable length S1 in meters during the period from when the traction mechanism 3 is moved from the first take-up reel 1 to when the cutter mechanism 5 on the second take-up reel 2 cuts the cable, one only needs to know the movement time of the traction mechanism 3 during this period. Multiplying this by the cable production speed yields the cable output length during this period. During the traction process, we first estimate that the cable reaches the first winding length at the edge of the first take-up reel 1. When it reaches the edge of the reel of the second take-up reel 2, the traction mechanism 3 moves three sections along the first direction, namely LM (the traction mechanism 3 moves from one end of the first take-up reel 1 to the other end); KM (the traction mechanism 3 moves to the first set position of the second take-up reel 2); KM (the traction mechanism 3 moves from the first set position of the second take-up reel 2 to the edge where the cutter mechanism 4 and the clamping mechanism 5 of the second take-up reel 2 are located). By matching the movement rate of each section of the traction mechanism 3 along the first direction, the specific time of the movement process can be obtained, and finally multiplied by the transmission speed of the cable to obtain S1.

[0057] It is worth noting that the distance references in the above formula 2 are all distances along the first direction, so the linear speeds of the traction mechanism 3 are all moving speeds along the first direction.

[0058] Specifically, L and M are set based on the specific dimensions of the first and second take-up reels 1 and 2. When the speed of the traction mechanism 3 in the second direction is known and the distance between the first and second take-up reels 1 and 2 in the second direction is known, the position of point K is also known. V2 is the preset linear velocity. Typically, S1 is kept around 200 m, which allows the specific value of V2 to be determined.

[0059] Further preferably, the linear speed of the traction mechanism 3 winding on the first take-up drum 1 is calculated as follows:

[0060] V1=(H*V* ) / π*D (Formula 3)

[0061] Where H is the distance the cable is displaced in the first direction when it is wound around the first take-up drum 1; D is the diameter of the first take-up drum 1; and G is the angle between the cable and the second direction when the traction mechanism 3 is winding the cable at a linear velocity of V1. Both H and D can be acquired directly or using an image acquisition device, thereby clearly determining the linear velocity V1 of the traction mechanism 3 in the first direction during normal cable winding.

[0062] Furthermore, the calculation method of the above G is:

[0063] G= (Formula 4)

[0064] By combining Formula 3 and Formula 4, the linear velocity V1 of the traction mechanism 3 winding on the first take-up drum 1 can be clearly known.

[0065] Further preferably, the above formula 2 calculates the winding situation under ideal conditions (when the first winding length is reached, the winding mechanism 3 just moves to the edge of the first take-up drum 1). In actual practice, when the cable is wound to the first winding length, the traction mechanism 3 may be located in the middle of the first take-up drum 1. Therefore, it is necessary to calculate the actual moving linear speed V3 of the traction mechanism 3 along the first direction on the first take-up drum 1 and the second take-up drum 2 in steps S2 and S4 according to the actual position of the traction mechanism 3 at this time. By adjusting the linear speed V3 accordingly, when any point on the first take-up drum 1 moves to the edge of the drum of the second take-up drum 2, its moving time is equal to the moving time in formula 2, thereby ensuring that the cable output length within this time period is equal to S1, and ensuring that the length of the cable wound on the first take-up drum 1 is just equal to S3.

[0066] Specifically, in the above step S2, the actual position of the traction mechanism on the first take-up drum 1 is 0, and the calculation method of V3 is:

[0067] V3= (O+K-2M) / ((KM) / V2+(LM) / V2) (Formula 5).

[0068] Here, the actual position O of the traction mechanism 3 on the first take-up drum 1 can be obtained by an image acquisition device; and O, K, L, and M are all positions along the first direction in the same coordinate system.

[0069] Furthermore, the winding distance F of the cable on the first take-up drum 1 can be obtained by a meter counter, and the calculation method of F is:

[0070] F=A+π*(B+C)*(D / E) (Formula 6)

[0071] Where A is the distance from the cable payout to the meter wheel, B is the meter wheel diameter, C is the cable diameter, D is the pulse count, and E is the number of pulses per meter wheel rotation. The meter wheel provides real-time information on the length of the cable passing through the meter wheel, providing a clear understanding of the cable length wound on the first take-up reel 1. When the winding length F equals S2, the reel change process can be performed. V3 is then calculated from the actual position O of the traction mechanism on the first take-up reel 1, and the reel change process is then performed. When the cutter mechanism 5 cuts the cable, the cable production length from the reel change point to the cable cutting point is exactly S1. At this point, the length of cable wound on the first take-up reel 1 is exactly S3.

[0072] Furthermore, the present invention also includes a dancer wheel at the cable outlet to adjust the cable's pulling tension. When the dancer wheel is in the highest or lowest position, the cable may break or collapse, ultimately leading to a reeling failure. The dancer wheel controls the cable's pulling tension, ensuring proper cable reeling and traction.

[0073] It will be easily understood by those skilled in the art that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic wire take-up and reel changing method for controlling a double-reel wire take-up device to automatically take up wire, wherein the double-reel wire take-up device comprises a first wire take-up reel and a second wire take-up reel spaced apart along a second direction, a traction mechanism is provided between the first wire take-up reel and the second wire take-up reel, and a cutting mechanism and a clamping mechanism are provided on the reel edge of at least one of the first wire take-up reel and the second wire take-up reel; characterized in that: The automatic winding and reel changing method comprises the following steps: Step S1: The traction mechanism is moved to above the first take-up drum. The traction mechanism and the first take-up drum are arranged parallel to each other along a first direction. The traction mechanism pulls the cable to the first take-up drum. The first take-up drum reels and winds the cable. Step S2: obtaining a first winding length of the cable wound on the first take-up drum, and when the first winding length is equal to a preset length, moving the traction mechanism along a first direction to an edge of the first take-up drum; Step S3: the traction mechanism moves along the second direction to above the second take-up drum, and the traction mechanism moves along the first direction to a first set position while moving along the second direction; Step S4: the traction mechanism moves along the first direction to the edge of the second take-up drum, the clamping mechanism clamps the cable, the cutter mechanism rotates and cuts the cable, and the cable is wound on the second take-up drum; Wherein, in step S1, the linear speed of the traction mechanism winding on the first take-up reel is V1, in step S2, the preset linear speed of the traction mechanism moving to the edge of the first take-up reel when reaching the first winding length is V2, in step S3, the linear speed of the traction mechanism along the first direction when moving above the second take-up reel is V1, and in step S4, the preset linear speed of the traction mechanism moving along the first direction to the edge of the second take-up reel is V2, where V1<V2; In step S2, the first winding length is S2, the total winding length is S3, and the cable length in meters during the process of the traction mechanism switching from the first take-up reel to the second take-up reel and the cutter mechanism cutting the cable is S1; S1=((LM) / V2+(KM) / V1+(KM) / V2)*V (Formula 2); The limit positions of the traction mechanism at both ends of the first take-up reel are L and M respectively, the first set position of the traction mechanism on the second take-up reel is K, and the transmission speed of the cable is V; The actual position of the traction mechanism on the first take-up reel in step S2 is 0, and the actual linear speed of the traction mechanism moving along the first direction on the first take-up reel and the second take-up reel in steps S2 and S4 is V3. The calculation method of V3 is: V3= (O+K-2M) / ((KM) / V2+(LM) / V2) (Formula 5).

2. The automatic winding and reel changing method according to claim 1, characterized in that: The linear speed of the traction mechanism winding on the first take-up drum is calculated as follows: V1=(H*V* ) / π*D (Formula 3) Wherein, H is the displacement distance of the cable along the first direction when it is wound around the first take-up drum for one circle; D is the diameter of the first take-up drum; and G is the angle between the cable and the second direction when the traction mechanism is wound at a linear speed of V1.

3. The automatic winding and reel changing method according to claim 2, characterized in that: The calculation method of G is: G= (Formula 4).

4. The automatic winding and reel changing method according to claim 1, characterized in that: The cable winding distance F on the first take-up drum is obtained by a meter counter, and the calculation method of F is: F=A+π*(B+C)*(D / E) (Formula 6) Wherein, A is the distance from the cable pay-out to the meter wheel, B is the meter wheel diameter, C is the cable diameter, D is the pulse count, and E is the number of pulses in one rotation of the meter wheel.

5. The automatic winding and reel changing method according to claim 1, characterized in that: The outlet end of the cable is also provided with a dancing wheel.

Images