Length quota automatic metering device for cable

Abstract

A length quota automatic metering device for a cable comprises a metering mechanism, a locking mechanism and a control mechanism. The metering mechanism is used for measuring the length of the cable and comprises a main body bracket, an upper roller, a lower roller, a second locking spring, an infrared generator and an infrared receiver; the locking mechanism is used for locking a cable and comprises a base, a locking pressing plate, a stand column, a positioning rod, a first locking spring, a clamping pin, a servo motor and a battery box. The control mechanism comprises a control chip, a calculation program is arranged in the control chip, a target value of the radius of the lower roller and the length of the cut cable can be input, the infrared receiver sends a signal of the number of rotation turns of the lower roller to the control chip during operation, and when the perimeter corresponding to the received signal reaches the target value of the length of the cable, the control chip is started. The control chip triggers the servo motor to rotate to drive the clamping pin to be separated from the positioning rod, and the first locking spring pulls down the locking pressing plate to lock the cable. The cable length quota and cutting automation is achieved, and the beneficial effects of being simple in structure, convenient to operate, accurate in metering, high in universality and capable of reducing the cost are achieved.

Description

Technical Field

[0001] The present invention relates to the processing of electrical cables, and particularly to an automatic metering device for the length quota of cables, belonging to the field of electrical technology. Background Art

[0002] In current industrial production and infrastructure construction, as a key medium for power transmission and signal transmission, the accurate control of the length of cables is of crucial importance. However, there are many problems with the existing methods for measuring and cutting the length of cables. Currently, the common measurement of cable length mainly relies on manual use of traditional measuring tools. This method not only has extremely low efficiency, requiring a large amount of time and labor costs, but also the measurement accuracy is difficult to guarantee and is easily interfered by human factors. When cutting cables, due to inaccurate length determination, it often leads to waste of materials or affects the progress of the project. In addition, traditional methods lack elements of intelligence and automation and cannot meet the requirements of modern industry for efficient and precise production. Therefore, there is an urgent need for a new device that can efficiently and accurately measure the length of cables and facilitate cutting. Summary of the Invention

[0003] The purpose of the present invention is to overcome the deficiencies in the existing cable length determination and cutting operations, provide an automatic metering device for the length quota of cables, transform the existing backward operation mode, realize the automation of cable length quota and cutting, and achieve the effects of simple structure, convenient operation, precise metering, and strong versatility.

[0004] Based on the above purpose, the present invention provides the following technical solutions:

[0005] An automatic metering device for the length quota of cables, characterized in that: the device includes a metering mechanism, a locking mechanism, and a control mechanism;

[0006] The metering mechanism is located at the front and is used for measuring the length of the cable. It includes a main body bracket, an upper roller, a lower roller, a second locking spring, an infrared generator, and an infrared receiver. Vertical through slots are provided on both sides of the main body bracket. The lower roller is horizontally mounted at the lower part of the through slot and is used for winding the cable whose length is to be measured. A light passing hole that penetrates the wheel body axially is provided on the radius line deviating from the wheel center of the lower roller for passing the infrared ray for detection. The upper roller is horizontally mounted at the lower part of the through slot and is used for pressing the cable. The second locking spring is connected between the upper roller and the lower roller, and the upper roller and the lower roller are pulled closer to each other by the spring tension, so that the upper roller tightly presses the cable to be measured onto the lower roller. The infrared generator and the infrared receiver are respectively installed on both sides of the main body bracket, opposite in position and corresponding to the light passing hole. The infrared ray emitted by the infrared generator passes through the light passing hole of the lower roller and reaches the infrared receiver on the other side. The number of times the infrared receiver receives the infrared ray is the number of turns of the lower roller, thereby determining the length of the cable that has been pulled out from the lower roller.

[0007] The locking mechanism is located at the rear and is used for locking the cable whose measured length reaches a predetermined value. It includes a base, a locking pressing plate, a column, a positioning rod, a first locking spring, a retaining pin, a servo motor, and a battery box. The locking pressing plate is horizontally arranged above the base with a certain interval. The upper end of the column is fixedly connected to the locking pressing plate, and the lower end is inserted into the guide hole of the base and can move up and down along the guide hole. The upper end of the first locking spring is connected to the locking pressing plate, and the lower end is connected to the base. The locking pressing plate and the base are pulled closer to each other by the spring tension, thereby realizing the locking of the cable. The positioning rod is fixed to the side of the locking pressing plate and extends backward. The suspended end is provided with a hook with a pointed top upward. The battery box is vertically arranged behind the base. The servo motor is fixed on the battery box and is connected to the battery box. The retaining pin is connected to the output end of the servo motor and can rotate with the servo motor in the vertical plane. The front end of the retaining pin is provided with a toothed part downward, which is in tooth-shaped structure cooperation with the hook of the positioning rod. When the servo motor rotates to drive the retaining pin to be in a horizontal position, the retaining pin brackets the locking pressing plate in a suspended position through the positioning rod, with a certain interval from the upper part of the base, so that the cable can pass freely. When the servo motor rotates to drive the retaining pin to reach the vertical position, the retaining pin is disengaged from the positioning rod, and the locking pressing plate is pulled down by the first locking spring, thereby firmly clamping the cable.

[0008] The control mechanism includes a control chip which has a calculation program for calculating the length of the measured cable based on the radius of the roller, and is capable of inputting and setting the radius of the lower roller and the target value of the intercepted cable length. The control chip is respectively connected to the servo motor, the infrared generator and the infrared receiver. During operation, the infrared generator and the infrared receiver send signals of the number of rotations of the lower roller to the control chip. When the perimeter corresponding to the signal received by the control chip reaches the target value of the cable length, the control chip sends a start signal to the servo motor, triggering the servo motor to rotate and drive the detent to disengage from the positioning rod, and the first locking spring pulls down the locking pressure plate to lock the cable.

[0009] Further, the upper roller and the lower roller are arranged on the main body bracket through roller shafts, and an axial hole for passing the roller shafts is provided in the center, and the outer circle of the roller is saddle-shaped.

[0010] Further, the upper roller and the lower roller are made of wear-resistant high-strength engineering plastics.

[0011] Further, the locking pressure plate is a strip-shaped metal member, and a rubber anti-slip pad is provided on the lower side.

[0012] Further, a cable slot for passing the cable is provided in the upper part of the base, and a cable through window penetrating from front to back is provided in the upper part of the battery box for passing the cable.

[0013] Further, the servo motor is a DC reduction motor, and a motor junction box is provided on the upper side, and is connected to the battery box through a power cord.

[0014] Further, the control chip uses a microprocessor chip of PLC, which is integrated on a small circuit board.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] First, accurate measurement: Through the precise cooperation of infrared measurement technology and semiconductor chips, accurate measurement of the cable length is achieved; the infrared receiver can accurately capture the rotation signal of the roller, thereby accurately detecting the cable length, and the calculation program built in the chip can accurately calculate the cable length according to parameters such as the signal of the infrared receiver and the roller radius, thus greatly improving the cable measurement accuracy, far superior to the traditional method.

[0017] II. High efficiency and convenience: The metering device adopts infrared automatic measurement technology and equipment automatic control technology, realizing equipment automation and intelligence. During the operation process, workers only need to perform simple operations, such as turning the handle and setting the target value. The entire operation process is simple and convenient, saving a large amount of time and labor costs, and greatly improving the efficiency of cable length measurement and cutting.

[0018] III. Strong versatility: The metering device is small and lightweight, and is equipped with rollers of different specifications, capable of being applicable to different types of cables. Whether it is thick cables or thin cables, whether it is power cables or communication cables, accurate length measurement and cutting can be carried out on this device, improving the applicability and practicality of the device.

[0019] IV. Cost reduction: It reduces rework and material waste caused by inaccurate cable cutting lengths.

[0020] In summary, the present invention realizes the automation of cable length measurement and cutting, achieving the beneficial effects of simple structure, convenient operation, accurate measurement, strong versatility, and cost reduction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is one of the structural schematic diagrams of the present invention.

[0022] Figure 2 is the second structural schematic diagram of the present invention.

[0023] Figure 3 is Figure 1 the left view of

[0024] Figure 4 is the schematic diagram of the lower roller.

[0025] In the figure, 1 - servo motor, 2 - motor junction box, 3 - control chip, 4 - locking pressure plate, 5 - pin, 6 - positioning rod, 7 - first locking spring, 81 - upper roller, 82 - lower roller, 9 - main body bracket, 10 - second locking spring, 11 - infrared generator, 12 - column, 14 - roller rotating shaft, 15 - infrared receiver, 16 - battery box, 17 - base, 18 - card slot, 19 - cable passing window. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] The following further specifically describes the present invention in detail in conjunction with the drawings and embodiments, but the scope of protection required by the present invention cannot be limited thereby.

[0027] The present invention is used for cable length measurement and cutting, and has broad application potential in cable processing, installation, and various occasions involving cable use, providing an efficient and accurate solution for cable length control and processing.

[0028] Embodiment

[0029] Please refer to Figure 1 and Figure 2 , the automatic length quota measuring device for cables includes the following parts: a measuring mechanism 101, a locking mechanism 102, and a control mechanism 103.

[0030] The measuring mechanism 101 is located at the front of the entire device and is used for measuring the length of the cable. Please refer to Figure 1 , Figure 2 and Figure 3 , the measuring mechanism 101 includes a main body bracket 9, an upper roller 81, a lower roller 82, a second locking spring 10, an infrared generator 11, and an infrared receiver 15.

[0031] Vertical frames are provided on both sides of the main body bracket 9, and vertical straight-through grooves are provided on the frames. The lower roller 82 is horizontally mounted on the lower part of the straight-through groove of the main body bracket 9 through a roller rotating shaft 14 and is used for winding the cable whose length is to be measured, and it can be flexibly rotated manually or mechanically; please refer to Figure 4 , the outer circle of the lower roller 82 is saddle-shaped, with an overall diameter of 80.5 mm and a length of 100 mm, and is used for accommodating the cable to be measured. The lower roller 82 is made of wear-resistant high-strength engineering plastic, and its surface is smooth to reduce friction with the cable. An axial hole 821 for passing the roller rotating shaft 14 is provided at the center of the lower roller 82, and a light-passing hole 822 that penetrates the wheel body of the lower roller 82 along the axial direction is provided on the radius line on one side of the axial hole 821. The light-passing hole 822 is rectangular, with a length of 11.78 mm and a width of 5.5 mm, and is used for passing the infrared rays for detection. The upper roller 81 is horizontally mounted on the lower part of the straight-through groove of the main body bracket 9 through a roller rotating shaft 14 and is used for pressing the cable. Similar to the upper roller 81, the outer circle is saddle-shaped, and an axial hole for passing the roller rotating shaft 14 is provided at the center. Refer to Figure 3 , the second locking spring 10 is connected between the roller rotating shaft 14 of the upper roller 81 and the roller rotating shaft 14 of the lower roller 82, and the upper roller 81 and the lower roller 82 are pulled closer to each other through the spring tension, so that the upper roller 81 presses the cable to be measured tightly on the lower roller 82 to ensure the accuracy of cable measurement.

[0032] The infrared generator 11 and the infrared receiver 15 are respectively installed on the upright frames on both sides of the main body bracket 9 through precise positioning mounts, and their positions correspond to the light through holes 822 of the lower roller 82; both the infrared generator 11 and the infrared receiver 15 are miniature patch components, with a small volume and can be closely attached to the mounts. The infrared rays emitted by the infrared generator 11 can pass through the light through holes 822 of the lower roller 82 and reach the infrared receiver 15 on the other side. Each time the lower roller 82 makes one revolution, the infrared receiver 15 can receive the infrared rays emitted by the infrared generator 11 that pass through the light through holes 822 once. The number of times the infrared receiver 15 receives the infrared rays is the number of revolutions of the lower roller 82, so that the length of the cable pulled out on the lower roller 82 can be accurately determined.

[0033] Please refer to Figure 1 , Figure 2 and Figure 3 , the locking mechanism 102 is located at the rear of the entire device and is close to the metering mechanism 101, and is used to lock the cable whose metered length reaches a predetermined value, and includes a base 17, a locking pressure plate 4, a column 12, a positioning rod 6, a first locking spring 7, a pin 5, a servo motor 1 and a battery box 16.

[0034] The base 17 is located below, and a cable passing slot 18 is provided on the upper part. Please refer to Figure 1 and Figure 2 , the locking pressure plate 4 is a strip-shaped metal member, with a length of 70 mm, a width of 45 mm, and a thickness of 10 mm. It is horizontally arranged above the base 17 with a certain interval, as shown in Figure 3 . A rubber anti-slip pad is provided on the lower side of the locking pressure plate 4, and the thickness of the rubber anti-slip pad is 2 mm to increase the friction on the cable and protect the cable surface. The upper end of the column 12 is fixedly connected to the locking pressure plate 4, and the lower end is inserted into the guide hole of the base 17 and can drive the locking pressure plate 4 to move up and down along the guide hole. The upper end of the first locking spring 7 is connected to the locking pressure plate 4, and the lower end is connected to the base 17. The locking pressure plate 4 and the base 17 are pulled closer to each other through the spring tension, so that the locking pressure plate 4 tightly clamps the cable passing through the slot 18 on the base 17. Please refer to Figure 1 , the positioning rod 6 is fixed to the side of the locking pressure plate 4 and extends backward, and a hook with a pointed top upward is provided at the suspended end.

[0035] The battery box 16 is vertically arranged behind the base 17, and a cable passing window 19 penetrating through the front and rear is provided at the upper part for passing cables. The servo motor 1 is horizontally fixed on the battery box 16 axially. The latch 5 is connected to the output end of the servo motor 1 and can rotate with the servo motor 1 on a vertical plane. A downward tooth-shaped part is provided at the front end of the latch 5, which is engaged with the hook of the positioning rod 6 through a tooth-shaped structure. When the servo motor 1 rotates to drive the latch 5 to be in a horizontal position, the latch 5 locks the locking pressure plate 4 in a suspended position through the cooperation of the tooth-shaped part and the hook of the positioning rod 6, leaving a gap from the upper part of the base 17 so that the cable can pass freely; when the servo motor 1 rotates to drive the latch 5 to reach a vertical position, the latch 5 is disengaged from the positioning rod 6, and the locking pressure plate 4 is pulled down by the spring restoring force of the first locking spring 7, thereby firmly locking and clamping the cable. The servo motor 1 is a DC reduction motor, which is connected to the battery box 16 to provide stable torque; a motor junction box 2 is provided on the upper side of the servo motor 1 and is connected to the battery box 16 through a power cord.

[0036] Please refer to Figure 1 , Figure 2 and Figure 3 , the control mechanism 103 includes a control chip 3, and a microprocessor chip using a PLC is integrated on a small circuit board. The circuit board is fixed in the control box by screws. The control box is a rectangular metal box, which plays a role in protecting the circuit board and the internal circuit. The control chip 3 has a built-in precise calculation formula program, which can calculate the length of the measured cable according to different roller radii to meet the measurement requirements of different specifications of cables; at the same time, the control chip 3 is respectively connected to the servo motor 1, the infrared generator 11 and the infrared receiver 15 through an operation panel; during operation, the infrared generator 11 and the infrared receiver 15 send signals of the number of rotations of the lower roller 82 to the control chip 3, and the control chip 3 sends start or stop signals to the servo motor 1. The operation panel is embedded on the surface of the device shell for the convenience of users to operate. Users can input the target values of setting the radius of the lower roller 82 and the intercepted cable length into the control chip 3 through the numeric keys and confirmation buttons on the operation panel. When the circumference corresponding to the number of rotations of the lower roller 82 received by the control chip 3 reaches the target value, the control chip 3 can quickly respond, send a start signal to the servo motor 1, trigger the servo motor 1 to rotate to drive the latch 5 to reach a vertical position, the latch 5 is disengaged from the positioning rod 6, and the locking pressure plate 4 is pulled down by the spring restoring force of the first locking spring 7, thereby firmly locking and clamping the cable to complete the locking of the cable.

[0037] The usage process of the present invention is as follows:

[0038] Please refer to Figure 1 , Figure 2 and Figure 3 together. First, according to the production requirements, the operator inputs the corresponding program, the radius of the lower roller 82, and the target value of the cable length to be intercepted into the control chip 3 through the operation panel. Then, the positioning rod 6 is pulled up and clamped by the pin 5 to maintain a mutually limited state. At this time, the first locking spring 7 is in a stretched state. Then, the cable to be measured and cut is wound around the lower roller 82, and the other end of the cable is passed through the space between the locking pressing plate 4 and the upper part of the base 17 and the cable passing window 19 and connected to an external general cable storage disc. Next, the lower roller 82 is rotated by shaking the handle. The handle is of a crank-shaped structure and is connected to the roller rotating shaft 14 of the lower roller 82 through a gear, which can easily drive the lower roller 82 to rotate. At the same time, the infrared generator 11 and the infrared receiver 15 start to work: every time the lower roller 82 rotates one circle, the infrared receiver 15 receives a signal and transmits the signal to the control chip 3, so as to determine the number of rotations of the lower roller 82. The control chip 3 accurately calculates the length of the measured cable according to the received number of rotations, the preset roller radius, and the calculation formula. When the calculation result reaches the set target value, the control chip 3 sends a control signal to the servo motor 1 to drive the servo motor 1 to start, and then drives the pin 5 to rotate to the vertical position and disengage from the positioning rod 6. Then, the locking pressing plate 4 is pulled down by the spring restoring force of the first locking spring 7, so as to firmly clamp the cable and complete the locking of the cable. At this time, the operator can use a suitable tool to cut the cable.

[0039] In both the cable production workshop and the cable installation site, the automatic cable length quota measuring device of the present invention can be used. The cable to be measured and cut is placed into the device, and the operator can flexibly adjust the setting parameters according to the actual requirements. Then, as the roller rotates, the infrared receiver 15 feeds back the real-time number of rotations signal to the control chip 3. When the cable length calculated by the control chip 3 reaches the target value, the locking mechanism 102 quickly clamps the cable. At this time, the worker can use professional cutting tools, such as cable cutters, to accurately cut the cable.

[0040] The convenience and high precision of the present invention bring great convenience to cable installation work. In a narrow installation space or a complex construction environment, the small volume and simple operation of the device make the cable length quota and cutting easy to perform. At the same time, it reduces rework and material waste caused by inaccurate length, ensuring the project progress and quality.

[0041] The scope of protection claimed by the present invention is not limited to the above embodiments, but should also include other obvious variations and alternative solutions to the present invention.

Claims

1. An automatic metering device for cable length quota, characterized in that: The device includes a metering mechanism, a locking mechanism and a control mechanism; The metering mechanism is located at the front and is used for measuring the length of the cable. It includes a main body bracket, an upper roller, a lower roller, a second locking spring, an infrared generator and an infrared receiver. Vertical straight-through slots are provided on both sides of the main body bracket. The lower roller is horizontally mounted at the lower part of the straight-through slot and is used for winding the cable whose length is to be measured. A light-passing hole that penetrates the wheel body axially is provided on the radius line offset from the center of the wheel of the lower roller for passing the infrared rays for detection. The upper roller is horizontally mounted at the lower part of the straight-through slot and is used for pressing the cable. The second locking spring is connected between the upper roller and the lower roller, and the upper roller and the lower roller are pulled closer to each other by the spring tension, so that the upper roller tightly presses the cable to be measured onto the lower roller. The infrared generator and the infrared receiver are respectively installed on both sides of the main body bracket, opposite in position and corresponding to the light-passing hole. The infrared rays emitted by the infrared generator pass through the light-passing hole of the lower roller and reach the infrared receiver on the other side. The number of times the infrared receiver receives the infrared rays is the number of turns of the lower roller, so as to determine the length of the cable that has been pulled out from the lower roller; The locking mechanism is located at the rear and is used for locking the cable whose measured length reaches a predetermined value. It includes a base, a locking pressure plate, a column, a positioning rod, a first locking spring, a retaining pin, a servo motor and a battery box. The locking pressure plate is horizontally arranged above the base and at a certain interval. The upper end of the column is fixedly connected to the locking pressure plate, and the lower end is inserted into the guide hole of the base and can move up and down along the guide hole. The upper end of the first locking spring is connected to the locking pressure plate, and the lower end is connected to the base. The locking pressure plate and the base are pulled closer to each other by the spring tension, so as to lock the cable. The positioning rod is fixed to the side of the locking pressure plate and extends backward. The suspended end is provided with a hook with a pointed top upward. The battery box is vertically arranged behind the base. The servo motor is fixed on the battery box and is connected to the battery box. The retaining pin is connected to the output end of the servo motor and can rotate with the servo motor in the vertical plane. The front end of the retaining pin is provided with a downward tooth-shaped part, which is engaged with the hook of the positioning rod through a tooth-shaped structure. When the servo motor rotates to drive the retaining pin to be in a horizontal position, the retaining pin brackets the locking pressure plate in a suspended position through the positioning rod, at an interval from the upper part of the base, so that the cable can pass freely. When the servo motor rotates to drive the retaining pin to reach the vertical position, the retaining pin is disengaged from the positioning rod, and the locking pressure plate is pulled down by the first locking spring, so as to firmly clamp the cable; The control mechanism includes a control chip which has a calculation program built therein for calculating the length of the measured cable based on the radius of the roller, and is capable of inputting and setting the radius of the lower roller and the target value of the intercepted cable length. The control chip is respectively connected to the servo motor, the infrared generator and the infrared receiver. During operation, the infrared generator and the infrared receiver send signals of the number of rotations of the lower roller to the control chip. When the circumference corresponding to the signal received by the control chip reaches the target value of the cable length, the control chip sends a start signal to the servo motor to trigger the rotation of the servo motor to drive the detaching of the latch pin from the positioning rod, and the first locking spring pulls down the locking pressing plate to lock the cable.

2. The automatic length quota measuring device for cables according to claim 1, characterized in that: The upper roller and the lower roller are arranged on the main body bracket through roller shafts, and an axial hole for passing the roller shafts is provided in the center, and the outer circle of the roller is saddle-shaped.

3. The automatic length quota measuring device for cables according to claim 1, wherein: The upper roller and the lower roller are made of wear-resistant high-strength engineering plastics.

4. The automatic length quota measuring device for cables according to claim 1, characterized in that: The locking pressing plate is a strip-shaped metal member, and a rubber anti-slip pad is provided on the lower side.

5. The automatic length quota measuring device for cables according to claim 1, characterized in that: A cable slot for passing the cable is provided in the upper part of the base, and a cable through window penetrating through the front and back is provided in the upper part of the battery box for passing the cable.

6. The automatic length quota measuring device for cables according to claim 1, characterized in that: The servo motor is a DC reduction motor, and a motor junction box is provided on the upper side and is connected to the battery box through a power cord.

7. The automatic length quota measuring device for cables according to claim 1, characterized in that: The control chip uses a microprocessor chip of PLC and is integrated on a small circuit board.

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