RU2241655C1 - Device for winding cable on drum - Google Patents

Abstract

FIELD: electrical engineering.

SUBSTANCE: invention relates to devices for winding thread-like material on round drum, namely, to devices for compact automatic winding of electric cable of different size onto drums on any type-size. Proposed device for winding cable on drum consists on drum, drum mounting mechanism and crossmember to direct and tension the cable an it is provided additionally with controller, length meter, crossmember position coordinate pickup and device for measuring size of cable. Proposed device can be used with drums of any size for winding cable of any size, as signals from cable size measuring device, from crossmember position coordinates pickup and from length meter are delivered to controller which processes the data to set speed of rum rotation and movement of crossmember which lays the cable with due account of preset density and type of winding. Moreover, drum mounting mechanism contains horizontal beam whose axle passes through vertical post secured on support on which geared motor of horizontal beam angular displacement drive with horizontal beam angular displacement pickup is secured and also drum rotation electric drive. Drive chain with two sprockets is placed inside horizontal beam, drive sprocket being connected with drum rotation electric drive, and driven one, with spindle to fit drum. Thanks to it drum of any type-size can be lifted in initial position and lowered into preset position and can be mounted and removed from winding device without additional equipment.

EFFECT: enlarged operating capabilities.

2 cl, 3 dwg

Description

The invention relates to a device for winding filamentary material on a round drum, and in particular to devices for compact automatic winding of an electric cable having a thickness in a wide range of values.

A device for winding cable products according to the patent of the Russian Federation No. 2086494 is known. It has two coaxial bobbins with a drive for their rotation and a material spreader, the carriage of which is rigidly fixed to a power cylinder mounted with the possibility of reciprocating movement relative to a fixed rod mounted on the frame. There is also a material laying system with a carriage reverse, a meter meter for the material and a means for cutting it off. Parallel to the axis of the power cylinder there is a running spline shaft. The distributor carriage is made in the form of a composite structure consisting of two cheeks mounted on a splined shaft and placed between the cheeks of the bracket, made of a fork and connected to the splined shaft by means of a removable screw-nut gear.

This device provides convenient cable winding on a drum of a specific size, but does not provide optimal winding density.

Known winding machine with programmable control of the position of the traverse according to US patent No. 5499775. This machine includes: a spindle, a coil mounted on a spindle, a motor for rotating the spindle, a traverse, a cable guide, a motor driving a traverse, a means for determining the position of the traverse in relation to the spindle, namely, a device for storing the winding profile and determining the position of the traverse with respect to the angular position of the spindle, the spindle angular position sensor and the device supplying the signal to e traverses profile on a signal from the sensor.

The position of the spindle is determined by the sensor, which gives a signal to the controller about the angular position of the spindle. Moving the traverse produces an AC servomotor. A sensor is built into the engine, which gives a signal about the position of the beam to the controller. Two end sensors provide protection against the traverse beyond the specified limits. They are mounted on the traverse mounting lever, and upon their signal, the traverse movement stops immediately. The controller also maintains the gear ratio between the spindle and traverse.

This machine contains a programmable motion controller with a processor and works like an electronic pattern. It provides optimal winding of a cable of a given thickness on a drum of a given size due to the controller, which sets the winding profile and its length regardless of the length of the drum. The disadvantage is the lack of automatic determination of the thickness of the cable and the lack of devices for winding onto a large drum.

Known equipment for automatic cable winding according to US patent No. 3951355, taken by the authors as a prototype. It contains: a drum, a traverse base and a means for moving the traverse base (round-trip) along the winding direction, a traverse block having the ability to reciprocate relative to the traverse base, a traverse arm mounted on the traverse block to guide the cable when winding onto the drum and comprising cable support rollers at the top and bottom, a pinch roller for lateral clip and a device for providing pressing force. There is also a device that fixes the approach of the winded cable to the drum flange, means for changing the direction of the traverse when the cable approaches the drum flange, or for stopping the movement of the traverse, a drum rotation angle sensor, means for controlling the position of the traverse relative to the drum, connected to the angle sensor and which can quickly move the traverse along the drum, as well as means for raising the traverse lever, if the winding thickness is greater than the diameter of the drum flanges.

This equipment provides uniform winding of a cable of a given thickness on a drum of a given size, but it is not intended to automatically optimize parameters when using a cable of any size to wind on a drum of any size. There is a manual reconfiguration of the position of the switches that detect the presence of a cable near the flanges in case of changing the coil to a coil of other dimensions, in particular of a different width. It also requires reconfiguration of the means for controlling the position of the traverse block relative to the drum associated with the sensors of the angle of rotation of the drum during the transition from winding wires of one diameter to another diameter in order to withstand the step of moving the traverse one full revolution of the drum. In general, there is no automation of the process of determining parameters: the width of the winding field and the automatic measurement of the diameter of the winded cable and, as a result, the calculation of the step of moving the traverse for a full revolution of the drum.

The aim of the present invention is to provide the optimum density of the cable winding of any cross-sectional profile and thickness on coils (drums) of various sizes.

The essence of the invention lies in the fact that in the device for winding a cable onto a drum containing a drum, a drum mounting mechanism and a beam for guiding and tensioning the cable, a controller, a meter of a footage, a beam coordinate coordinate sensor and a cable thickness measuring device are additionally introduced.

The introduction of additional devices will allow the use of drums of any size for winding a cable having a thickness in a wide range of values.

Traverse is platform based. The platform has the ability to reciprocate with a drive screw, the rotation of which is provided by the drive. The traverse has end sensors that fix the extreme positions of the platform. On the platform, a device of lateral pre-tensioned cable with vertical pressure rollers and a cable pulling device, including horizontal support rollers from above and below, are fixed.

The platform has a two-tier structure with upper and lower flat bases. Moreover, a drive screw passes through the lower base, and a cable pulling device and a part of the side clamped cable device with one of the vertical pressure rollers are fixed on the upper base. Between the two tiers of the platform is a movable element that can be moved in the horizontal plane with a spindle. The axis of the first vertical pinch roller included in the lateral preloaded cable device is fixed on the movable element, and the axis of the second vertical pinch roller is rigidly fixed on the upper base of the platform. A device for measuring the thickness of a cable that measures the linear size of the cable along the traverse line includes, in addition to the lateral cable clamp device, a thickness sensor located at one end of the lead screw, and a cylindrical rotary handle for manual control is placed on the other end of this lead screw. Structurally, the mounting device of the vertical pinch rollers is designed in such a way that a cable of almost any thickness can be passed between them. The thickness of the cable corresponds to the linear movement of the first vertical roller relative to the second vertical roller when turning the cylindrical handle and the corresponding rotation of the lead screw, providing linear movement of the movable element. The signal from this thickness sensor, which is essentially a linear displacement sensor, is sent to the controller, and specifically to the analog-to-digital converter included in the controller, where it is converted to a digital value of the cable thickness.

A bracket for mounting horizontal rollers is also installed on the flat upper base of the platform. Two horizontal rollers for supporting the cable from below are located on both sides of the vertical pinch rollers. Above the horizontal support rollers below, there is one horizontal roller for supporting the cable from above, which is also a measuring roller and connected to the meter. The controller converts the signal from the meter to the length of the missed cable.

The transverse position coordinate sensor is located on the end of the transverse platform drive screw from the side opposite to the drive. It provides feedback signals for the angle of rotation of the drive screw to the controller.

In addition, the drum mounting mechanism comprises a horizontal beam, the axis of which passes through a vertical strut mounted on the lower support. It also has a gear motor for the drive of the angular displacements of the horizontal beam with a sensor for the angular displacements of the horizontal beam, as well as an electric drive for rotating the drum. The drive chain and two sprockets are located inside the horizontal beam. The drive sprocket is connected to the electric drum rotation drive, and the driven sprocket is connected to the drum nozzle spindle.

The drum mounting mechanism is a mechanism for lifting and setting the coil (drum) to its original position, and vice versa. It is equipped with a feedback sensor for the angle of rotation of the console mechanism (horizontal beam) relative to the vertical axis. The signal from the sensor goes to the analog-to-digital converter of the controller, where it is converted to digital form. When the value programmed by the controller is reached, a command is generated that stops the drive of the drum set mechanism.

The claimed technical solution allows the use of drums of any size (in our country, for example, according to GOST 5151-79) for tightly winding a cable on it. The signals from the measuring unit of the cable thickness, from the sensor of the coordinate of the position of the crosshead, from the meter of the meter, from the sensor of angular displacements of the console are fed to the controller, which recalculates these data to set the speed of rotation of the drum and the speed of the beam, laying out the cable, taking into account the predefined density and type winding.

The list of figures of graphic execution:

Figure 1. Device for winding a cable onto a drum. Kinematic scheme.

Figure 2. Traverse. Design sketch.

Figure 3. The mechanism for installing the drum. Design sketch.

1-3, the numbers indicate the following positions:

1 - drum

2 - drum installation mechanism,

3 - traverse,

4 - controller

5 - cable

6 - platform

7 - drive screw

8 - drive

9 - end sensors,

10 - movable element

11 - lead screw

12 - thickness gauge,

13 - cylindrical rotary handle,

14 - the first vertical pinch roller,

15 - the second vertical pinch roller,

16 - an arm;

17 - horizontal cable support rollers from the bottom,

18 - measuring roller

19 - meter sensor

20 - sensor coordinates of the position of the beam,

21 - horizontal beam

22 - vertical stand

23 - lower support

24 - gear motor drive angular displacements,

25 - sensor angular displacement,

26 - electric drive rotation of the drum,

27 - drive circuit,

28 - a leading asterisk,

29 - driven sprocket,

30 - spindle

31 - guide platforms,

32 - guides of the movable element.

Design description

A device for winding a cable onto a drum is a combination of four main blocks (figure 1). The drum 1 rises and is brought into operation by the installation mechanism of the drum 2. The beam 3, which is a complex electromechanical device controlled by the controller 4, serves to guide and tension when winding the cable 5.

The controller 4 sets the distance over which the platform 6 (FIG. 2) can move parallel to the axis of the drum 1 along the drive screw 7. The rotation of the drive screw 7 provides the drive 8 located at the end of this screw. To limit the progress of the platform 6 are end sensors 9 (figure 1), the signal from which is fed to the controller 4. The platform 6 is made two-level. On the upper plane of the platform 6 is fixedly fixed device lateral preloaded cable, made in the form of a movable element 10 with a lead screw 11 located parallel to and above the drive screw. At one end of the lead screw 11 is a thickness gauge 12, and at the other is a cylindrical rotary knob 13. On the movable element 10, the axis of the first vertical pinch roller 14 is cylindrical. The axis of the second vertical pinch roller 15 is rigidly fixed on the upper plane of the platform 6. If there is no cable between these rollers, the angle of rotation of the cylindrical handle is 0. To place a cable of any thickness between them, turn the cylindrical rotary handle 13 to rotate the spindle 11 and move accordingly him of the movable element 10 at a distance that provides a fairly tight clamping of the cable between two vertical pressure rollers, but allows you to freely slide during winding. The thickness sensor 12 detects this angle of rotation of the lead screw 11 and transmits a signal to the controller, where the value of the angular rotation is converted to a linear value of the thickness of the cable, which is the value of the layout step during row layout.

On the upper plane of the platform 6 is also rigidly fixed bracket 16 for mounting the cable broaching device. On the bracket 16, the axes of two horizontal cable support rollers are rigidly fixed from the bottom 17, and they are located at the same level on both sides of the vertical pinch rollers 14 and 15. In the upper part of the bracket 16 there is a measuring roller 18 (which is also a horizontal support roller on top). The axis of rotation of this measuring roller 18 is connected to the meter 19. The signal from this meter 19 is fed to the controller 4, where the number of revolutions of the measuring roller 18 is converted to a linear value of the length of the missed cable.

At the end of the drive screw 7 of the platform 6 from the side opposite to the drive 8, there is a sensor for the coordinate of the position of the yoke 20. It provides feedback pulses to the controller by the angle of rotation of the drive screw 7 from the drive 8. That is, the controller receives information about the position traverse (and hence cable) at the beginning of winding on the drum.

The drum mounting mechanism comprises a horizontal beam 21, the axis of which passes through a vertical strut 22 fixed on the lower support 23. It also has a gear motor for the drive of angular displacements 24 of the horizontal beam 21 with an angular displacement sensor 25, as well as an electric drive for rotating the drum 26 The drive chain 27 and two sprockets 28.29 are located inside the horizontal beam 21. The drive sprocket 28 is connected to an electric drive for rotating the drum 26, and the driven sprocket 29 is connected to the spindle 30.

The movement of the platform 6 is carried out by the drive screw 7 and the guides of the platform 30, and the movement of the movable element 10 along the lead screw 11 and the guides of the movable element 32.

The device operates as follows.

The operator sets the type of drum, density and type of winding on the controller’s control panel, includes a drum installation mechanism.

Initially, the horizontal beam 21 was in the initial position at which the signal from the angular displacement sensor 25 corresponds to zero. From the output of the controller 4, the calculated signal is fed to the gear motor of the drive of angular displacements 25, which first moves the horizontal beam to its original position for this drum. Then manually the drum 1 is fixed on the spindle 30. After that, the end of the cable is fixed on the flange of the drum, after passing it between the vertical rollers 14 and 15. Then the thickness sensor 12 is turned on. The signals from the thickness sensor 12, from the coordinate sensor of the position of the crosshead 20, from the meter 19 are supplied to the controller 4, which recounts this data to set the speed of rotation of the drum and the speed of the traverse, laying out the cable. Subsequently, the cable is wound on the drum in accordance with the specified parameters (type of coil, type of winding, linear speed of winding) with the calculated pitch of the layout equal to the thickness of the cable.

An electric drive for rotating the drum 26 drives the spindle 30 and, accordingly, the drum 1 in rotational motion at a given speed. At the same time, the drive 8 begins to rotate the drive screw 7, and the platform 3 begins to move along it. When the platform reaches the extreme position specified by the program, traverse occurs, and the platform begins to move in the opposite direction. The end sensors 9 are triggered in the event of an unexpected exit of the beam beyond the specified coordinate field and give a signal to stop the movement of the beam. The meter sensor 19 fixes the length of the missed cable, when the desired specified length is reached, they give a signal to stop the winding process. After winding, the horizontal beam 21, using the gear motor drive of the angular displacement drive 24, is moved to the lower position, the drum is removed from the spindle and rolled back to the desired location.

Industrial applicability

The main nodes of the inventive device for winding a cable onto a drum can be implemented using known technical means.

A cable thickness measuring device introduced into the device for winding a cable onto a drum (for example, with a thickness sensor in the form of a RP1-4be-10 K potentiometric sensor) allows you to automate the calculation of the step and density of cable winding on a drum based on its actual thickness (analog form of thickness measurement).

The single feedback sensor along the coordinate of the crosshead (the sensor of the coordinate of the position of the crosshead) is an E6C2 - CWZ module (Omron company) and allows you to automatically calculate the length of the layout field (neck length L according to GOST 5151-79) on the one hand, as well as programmatically organize any winding profile the angle of rotation of the screw drive traverse.

The meter may be, for example, an incremental encoder E6C2-CWZ (Omron), rigidly connected to the axis of rotation of the measuring roller. It converts the number of revolutions of the roller into the length of the cable passed through it.

The introduction of the drum installation mechanism in the form of an electromechanical lifting unit to its initial state for winding and lowering the drum to a predetermined position depending on the diameter of the drum makes it easy to install and remove drums from the winder without any additional equipment throughout the entire range of drum numbers (GOST 5151-79). It is equipped with a potentiometric sensor RP1 - 4be - 10K as a sensor for the angular displacements of a horizontal beam.

Claims (2)

1. A device for winding a cable onto a drum containing a drum, a drum mounting mechanism and a traverse for guiding and tensioning the cable, based on a platform with a drive screw, the rotation of which is provided by the drive, and having end sensors on which the lateral cable clamping device is rigidly fixed, including includes vertical pinch rollers and a cable pulling device, which includes horizontal support rollers above and below, characterized in that it contains a controller, a meter, a sensor for coordinate In this case, a traverse and a cable thickness measuring device, which includes a movable element with a lead screw, at one end of which there is a thickness sensor and a cylindrical rotary handle at the other end, the axis of the first of two vertical pressing cylindrical rollers fixed to the movable element and the axis of the second mounted on the platform of the traverse, on which the bracket for mounting the cable broaching device is also rigidly fixed, and the two horizontal support rollers included in it are located on both sides of the bottom ikalnyh cylindrical nip rollers and above the horizontal support rollers located below the top horizontal support roller, which measuring rollers associated with a sensor footage, in addition, the sensor position coordinates crosspiece connected to the end of the drive screw platform on the opposite side from the drive. 2. The device for winding a cable onto a drum according to claim 1, characterized in that the drum mounting mechanism comprises a horizontal beam, the axis of which passes through a vertical rack mounted on a support, on which a geared motor of a horizontal beam with a corner sensor is also fixed horizontal beam movements, as well as an electric drum rotation drive, the drive chain and two sprockets being located inside the horizontal beam, with the drive sprocket connected to the electric drive eniya drum and driven - with the spindle drum heads.

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