Cable stripping cutting parameter test platform based on force feedback and pressure test method

Abstract

The application provides a force feedback-based cable stripping cutting parameter test platform and a pressure test method. The cable comprises a first rubber layer, a stainless steel layer, a second rubber layer, a copper layer and a core. The test platform comprises a first cutting device, a second cutting device, a stepping motor, a sensor and a controller. The first cutting device comprises a pair of first cutting blades for cutting the first rubber layer of the cable. The second cutting device comprises a second cutting blade for cutting the stainless steel layer, the second rubber layer and the copper layer of the cable. The output end of the stepping motor is connected with the second cutting device for controlling the distance between the second cutting device and the cable. The sensor is connected with the second cutting device for obtaining the cutting pressure value of the second cutting device. The controller is connected with the sensor and the stepping motor for obtaining the feeding depth of the stepping motor and the cutting pressure value obtained by the sensor.

Description

Technical Field

[0001] This invention belongs to the field of cable recycling technology, and specifically relates to a cable stripping and cutting parameter testing platform and pressure testing method based on force feedback. Background Technology

[0002] Cables and wires are wire products used to transmit electrical energy, information, and realize electromagnetic energy conversion. With the rapid development of the communications industry, they have evolved from simple telephone and telegraph cables to multi-pair cables, coaxial cables, optical cables, data cables, and even composite communication cables, bringing great convenience to people's lives. However, with the widespread use of cables and wires, a large number of them need to be recycled. Recycling waste cables and wires can save a lot of resources. Cables and wires are covered with insulation and metal layers. During recycling, the insulation and metal layers need to be stripped to recover the cable core. The metal layer consists of a stainless steel layer and a copper sheath. The stainless steel layer exists in a spiral winding manner in the cable, and the copper sheath wraps around the inner cable core. Currently, the commonly used cutting methods are manual cutting and machine cutting. If these wires are all cut manually, the outer insulation of the cable must be cut first, then the stainless steel layer must be unscrewed, and then the cable core must be exposed by cutting. This method is labor-intensive due to the large number of cables and wires. At the same time, existing automatic wire cutting machines can only cut down to the insulation layer, and the blades cannot penetrate the metal layer, requiring multiple cutting steps, at least two processes. Currently, the inner stainless steel layer of cables can be manually unscrewed by workers using metal pliers or mechanically by using a rotating mechanism to fix both ends of the cable. However, both methods are inefficient, and due to the long length of the stainless steel layer, a more spacious working environment is required for mechanical unscrewing, while also posing a risk of breakage and injury. Furthermore, the irregular cross-section of cables, with variations between each section and even each layer, presents different challenges for manual stripping, requiring different stripping forces and depths for each worker. Because the magnitude of the cutting force and its characteristics during cable movement are uncertain, a cable cutting pressure testing platform needs to be designed.

[0003] In other words, current cable sheathing stripping still suffers from the following technical drawbacks: the inability to quickly unwind the outer metal layer of the cable, resulting in low stripping efficiency; and the lack of corresponding cutting pressure parameters for the cutting feed depth, which may cause damage to the wire core during cutting.

[0004] It is evident that, in cable recycling, improving the stripping efficiency of the cable's metal layers and providing a reference for the cutting pressure of different layers of the cable, thereby improving the recycling efficiency of the wire core, are technical problems that urgently need to be solved by those skilled in the art. Summary of the Invention

[0005] The cable stripping and cutting parameter testing platform based on force feedback provided by this invention at least solves the above-mentioned technical problems;

[0006] To address the aforementioned problems, a first aspect of the present invention provides a cable stripping and cutting parameter testing platform based on force feedback. The cable includes: a first rubber layer, a stainless steel layer, a second rubber layer, a copper sheath layer, and a wire core. The testing platform includes: a first cutting device comprising a pair of first cutting blades for cutting the first rubber layer of the cable; a second cutting device comprising a second cutting blade for cutting the stainless steel layer, the second rubber layer, and the copper sheath layer of the cable; a stepper motor, the output of which is connected to the second cutting device for controlling the distance between the second cutting device and the cable; a sensor connected to the second cutting device for acquiring the cutting pressure value of the second cutting device; and a controller connected to the sensor and the stepper motor for acquiring the feed depth of the stepper motor and the cutting pressure value acquired by the sensor.

[0007] In the first aspect, the test platform further includes a base and a support plate; the support plate is vertically disposed on the base; a wire feeding hole is disposed in the middle of the support plate for feeding the cable at a fixed frequency; a first cutting device is disposed on one side of the support plate at the inlet of the wire hole, and a pair of first cutting blades of the first cutting device are disposed opposite to each other on both sides of the inlet of the wire hole; a second cutting device is disposed on the other side of the support plate at the outlet of the wire hole.

[0008] In the first aspect, the sensor is an S-shaped sensor; the upper part of the S-shaped sensor is connected to the output end of the stepper motor via an L-shaped bracket, and the lower part of the S-shaped sensor is connected to the second cutting device.

[0009] In the first aspect, the second cutting assembly includes a cutting motor, a timing belt, a timing pulley, and a bearing; one end of the bearing is connected to the axis of the timing pulley, and the other end of the bearing is connected to the second cutting blade; the cutting motor is mounted on the L-shaped bracket, and the output end of the cutting motor is connected to the timing pulley via the timing belt; wherein, when the cutting motor rotates, the timing belt drives the bearing to rotate synchronously, thereby causing the second cutting blade to rotate and cut.

[0010] In the first aspect, the output end of the stepper motor is provided with a lead screw and a slider that cooperates with the lead screw, the slider being connected to the L-shaped bracket.

[0011] In the first aspect, the bottom of the base is provided with a plurality of corner braces, and a rib is provided between the base and the support plate, and the corner braces are made of rubber material.

[0012] In the first aspect, a wire feeding tube is also provided in the wire feeding hole; the wire feeding tube is provided with a pair of opposing cutting slits on the side of the support plate near the first cutting device, and the pair of cutting slits corresponds to the pair of first cutting blades; the wire feeding tube is provided with a cutting slit on the side of the support plate near the second cutting device, and the cutting slit corresponds to the second cutting blade.

[0013] Secondly, the present invention provides a pressure testing method for a cable stripping and cutting parameter testing platform based on force feedback. The cable includes: a first rubber layer, a stainless steel layer, a second rubber layer, a copper sheath layer, and a wire core. The testing platform includes: a first cutting device, a second cutting device, a stepper motor, a sensor, and a controller. The controller is electrically connected to the second cutting device, the stepper motor, and the sensor. The testing method includes: cutting the first rubber layer of the cable using the first cutting device; cutting the stainless steel layer and the second rubber layer of the cable using the second cutting device; and recording the cutting pressure of the second cutting device when cutting the stainless steel layer and the second rubber layer.

[0014] In a second aspect, the second cutting device includes a second cutting blade, characterized in that cutting the stainless steel layer and the second rubber layer of the cable by the second cutting device includes: activating the second cutting device by means of the control to cause the second cutting blade to cut the cable; acquiring the current cutting pressure value of the second cutting device detected by the sensor by the controller; determining whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value; if so, controlling the stepper motor to perform a telescopic movement to cause the second cutting device to move towards or away from the cable.

[0015] In the second aspect, the controller determines whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value; if so, the controller controls the stepper motor to extend or retract to displace the second cutting device toward or away from the cable, including: if the controller determines that the cutting pressure value of the second cutting device is less than a preset pressure threshold based on the current cutting pressure value, the controller controls the stepper motor to extend to displace the second cutting device toward the cable; if the controller determines that the cutting pressure value of the second cutting device is greater than the preset pressure threshold based on the current cutting pressure value, the controller controls the stepper motor to retract to displace the second cutting device away from the cable.

[0016] Beneficial effects: This invention proposes a cable stripping and cutting parameter testing platform based on force feedback. The first rubber layer of the cable is fixedly cut by a first cutting device, and the stainless steel layer and the second rubber layer of the cable are cut by a second cutting device. During cutting, the controller controls the sensor to detect and record the cutting pressure value of the second cutting device, and controls the cutting device to cut to the designated layer of the cutting blade without damaging the wire core based on the feedback of the pressure value, so as to improve the cutting accuracy and cutting efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this specification or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A front view of a cable stripping and cutting parameter testing platform based on force feedback is provided for Embodiment 1 of the present invention;

[0019] Figure 2 A side view of a cable stripping and cutting parameter testing platform based on force feedback is provided for Embodiment 1 of the present invention;

[0020] Figure 3 An isometric view of a cable stripping and cutting parameter testing platform based on force feedback is provided for Embodiment 1 of the present invention;

[0021] Figure 4 This is a diagram of the cable structure of the present invention;

[0022] Figure 5 This is a flowchart of the pressure testing method of the cable stripping and cutting parameter testing platform based on force feedback, according to Embodiment 2 of the present invention.

[0023] Numbering on the map:

[0024] 1. Stepper motor;

[0025] 2. Cutting motor;

[0026] 3. Bracket;

[0027] 4. Conduit;

[0028] 5. Support plate;

[0029] 6. Synchronous pulley;

[0030] 7. Synchronous belt;

[0031] 8. Motor support;

[0032] 9. S-type sensor;

[0033] 10. Second cutting blade;

[0034] 11. Ribs;

[0035] 12. Base;

[0036] 13. Corner brace;

[0037] 14. First cutting blade;

[0038] 15. Slider;

[0039] 16. First rubber layer;

[0040] 17. Stainless steel layer;

[0041] 18. Second rubber layer;

[0042] 19. Copper cladding;

[0043] 20. Core wire. Detailed Implementation

[0044] The technical solutions of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention are within the scope of protection of the present invention.

[0045] Furthermore, in the embodiments of this specification, when a component is referred to as being "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. When a component is considered to be "set on" another component, it can be directly set on the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in the embodiments of this specification are for illustrative purposes only and are not intended to limit the invention.

[0046] like Figure 3 As shown, it should be noted that the cable in this invention consists of: a first rubber layer 16, a stainless steel layer 17, a second rubber layer 18, a copper sheath layer 19, and a wire core 20. The metal layers are divided into a stainless steel layer and a copper sheath. The stainless steel layer exists in the cable in a spiral winding manner, and the copper sheath wraps around the wire core of the inner cable. The stainless steel layer is formed by multiple stainless steel wires winding and enveloping each other. Therefore, the stainless steel layer needs to be unwound before cutting and recycling. Thus, the feed depth generated when cutting each layer will affect the cutting accuracy. For example, if the feed depth is too large, it may damage the wire core; if the feed depth is too small, the cut will be incomplete. Based on this, this application solves the above problems through the solutions of Embodiment 1 and Embodiment 2:

[0047] Example 1:

[0048] like Figure 1-4 As shown, this embodiment provides a test platform for cable stripping and cutting parameters based on force feedback. The test platform includes: a first cutting device, a second cutting device, a stepper motor 1, a sensor, and a controller.

[0049] The first cutting device includes a pair of first cutting blades 14 for cutting the first rubber layer 16 of the cable; the second cutting device includes a second cutting blade 10 for cutting the stainless steel layer 17 and the second rubber layer 18 of the cable; the output end of the stepper motor 1 is connected to the second cutting device for controlling the distance between the second cutting device and the cable; a sensor is connected to the second cutting device for acquiring the cutting pressure value of the second cutting device; and a controller is connected to the sensor and the stepper motor 1 for acquiring the feed depth of the stepper motor 1 and the cutting pressure value acquired by the sensor.

[0050] Specifically, this invention proposes a cable stripping and cutting parameter testing platform based on force feedback. The first rubber layer 16 of the cable is fixedly cut by a first cutting device, and the stainless steel layer 17 and the second rubber layer 18 of the cable are cut by a second cutting device. During cutting, the controller controls the sensor to detect and record the cutting pressure value of the second cutting device, and controls the cutting device to cut to the designated layer of the cutting blade without damaging the wire core 20 based on the feedback of the pressure value, so as to improve the cutting accuracy and cutting efficiency.

[0051] In some possible implementations, the test platform further includes a base 12 and a support plate 5; the support plate 5 is vertically mounted on the base 12; a wire feeding hole is provided in the middle of the support plate 5 for transmitting cables at a fixed frequency; a first cutting device is provided on one side of the support plate 5 at the inlet of the wire hole, and a pair of first cutting blades 14 of the first cutting device are arranged opposite each other on both sides of the inlet of the wire hole; a second cutting device is provided on the other side of the support plate 5 at the outlet of the wire hole.

[0052] In the above embodiment 1, by setting through-holes in the support plate 5, a cable with a fixed frequency can be continuously fed by the cable feeding device. Then, a first cutting device and a second cutting device are set on both sides of the support plate 5 so that the base layer (first rubber layer 16) of the cable is cut by the first cutting device and the next target layer (metal layer and second rubber layer 18) is cut by the second cutting device.

[0053] In some possible implementations, the sensor is an S-type sensor 9; the upper part of the S-type sensor 9 is connected to the output end of the stepper motor 1 via an L-shaped bracket 3, and the lower part of the S-type sensor 9 is connected to the second cutting device.

[0054] In one embodiment of the above-described first embodiment, the S-type sensor 9 has a sensitive sensing efficiency, and the upper part of the S-type sensor is connected to the output end of the stepper motor 1 through the bracket 3, and the lower part of the S-type sensor 9 is connected to the second cutting device. This allows the cutting device to accurately feed the force back to the S-type sensor 9 during cutting, and the stepper motor 1 can adjust the force of the second cutting device in a timely manner to adjust the cutting pressure.

[0055] In some possible implementations, the second cutting assembly includes a cutting motor 2, a timing belt 7, a timing pulley 6, and a bearing component; one end of the bearing component is connected to the axis of the timing pulley 6, and the other end of the bearing component is connected to the second cutting blade 10. The cutting motor 2 is mounted on an L-shaped bracket 3, and the output end of the cutting motor 2 is connected to the timing pulley 6 via the timing belt 7. When the cutting motor 2 rotates, the timing belt 7 drives the bearing component to rotate synchronously, thereby causing the second cutting blade 10 to rotate and cut.

[0056] For the second cutting component in the above embodiment 1, power is provided by the cutting motor 2, and the power is transmitted through the synchronous pulley 6 connected to the output end of the cutting motor 2. The synchronous pulley 6 and the bearing are connected by the synchronous belt 7, so that the cutting blade connected to the bearing rotates synchronously to achieve the cutting purpose.

[0057] In some possible implementations, the output end of the stepper motor 1 is provided with a lead screw and a slider 15 that cooperates with the lead screw, and the slider 15 is connected to the L-shaped bracket 3.

[0058] In order to make the output of the stepper motor 1 linear motion, a lead screw is provided at the output end of the stepper motor 1, and a matching slider 15 is provided on the lead screw. The forward and reverse rotation of the stepper motor 1 drives the lead screw to rotate accordingly, causing the slider 15 to move relative to the lead screw, thereby adjusting the displacement of the L-shaped bracket 3.

[0059] In some possible implementations, the bottom of the base 12 is provided with a plurality of corner braces 13, and a rib plate 11 is provided between the base 12 and the support plate 5. The corner braces 13 are made of rubber material.

[0060] This is to make the connection between the base 12 and the support plate 5 more stable. The connection between the support plates 5 is strengthened by the rib plate 11, and then a rubber corner brace 13 is set at the bottom of the base plate to prevent the base plate from shaking.

[0061] In some possible implementations, a cable feed tube 4 is also provided inside the cable feed hole; the cable feed tube 4 has a pair of opposing cutting slits on the side of the support plate 5 near the first cutting device, the pair of cutting slits corresponding to a pair of first cutting blades 14; the cable feed tube 4 has a cutting slit on the side of the support plate 5 near the second cutting device, the cutting slit corresponding to the second cutting blade 10. The cable feed tube 4 can effectively guide and fix the cable.

[0062] Example 2:

[0063] like Figure 5 As shown, this invention provides a pressure testing method for a cable stripping and cutting parameter testing platform based on force feedback. The cable includes: a first rubber layer, a stainless steel layer, a second rubber layer, a copper sheath layer, and a wire core. The testing platform includes: a first cutting device, a second cutting device, a stepper motor, a sensor, and a controller. The controller is electrically connected to the second cutting device, the stepper motor, and the sensor. The testing method includes: cutting the first rubber layer of the cable using the first cutting device; cutting the stainless steel layer and the second rubber layer of the cable using the second cutting device; and recording the cutting pressure of the second cutting device when cutting the stainless steel layer and the second rubber layer.

[0064] It can be understood that in the method of this embodiment two, the cable is first fed to the underside of the blade through the cable feeding pipe, the blade is moved to a specified distance position above the cable by the motor screw, the motor screw slider is controlled to move downward at a constant speed, so that the blade cuts the cable, and the pressure value is tested by the S-type pressure sensor, thereby realizing the pressure test operation of the automatic wire stripper.

[0065] In other embodiments, the second cutting device includes a second cutting blade. Cutting the stainless steel layer and the second rubber layer of the cable by the second cutting device includes: controlling the activation of the second cutting device so that the second cutting blade cuts the cable; acquiring the current cutting pressure value of the second cutting device detected by the sensor through the controller; determining whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value; if so, controlling the stepper motor to perform a telescopic movement so that the second cutting device is displaced in the direction of approach or away from the cable.

[0066] Furthermore, the controller determines whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value. If so, the controller controls the stepper motor to extend or retract, causing the second cutting device to move towards or away from the cable. This includes: if the controller determines that the cutting pressure value of the second cutting device is less than a preset pressure threshold, the controller controls the stepper motor to extend, causing the second cutting device to move towards the cable; if the controller determines that the cutting pressure value of the second cutting device is greater than the preset pressure threshold, the controller controls the stepper motor to retract, causing the second cutting device to move away from the cable.

[0067] This is because if the cable sheath is cut at a fixed feed depth, it may damage the core or the cut to the sheath may not be thorough. Therefore, this embodiment proposes to use a sensor to obtain the pressure value of the second cutting device to perform cutting tests on different layers of the cable sheath, so as to obtain and record the pressure value range of different layers when they are cut. When the actual cutting is performed, the pressure value is set with reference to this pressure value range.

[0068] Since Embodiment 2 and Embodiment 1 are embodiments under the same inventive concept and have some identical structures, the structures in Embodiment 2 that are substantially the same as those in Embodiment 1 will not be described in detail. For the parts not described in detail, please refer to Embodiment 1.

[0069] Finally, it should be noted that the above embodiments are merely specific implementations of the present invention, used to illustrate the technical solutions of the present invention, and not to limit it. The scope of protection of the present invention is not limited thereto. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that any person skilled in the art can still modify or easily conceive of changes to the technical solutions described in the foregoing embodiments within the scope of the technology disclosed in the present invention, or make equivalent substitutions for some of the technical features; and these modifications, changes, or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention. All should be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0070] Although embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for the present invention. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. A force feedback-based cable stripping and cutting parameter testing platform, wherein the cable includes: The test platform comprises: a first rubber layer, a stainless steel layer, a second rubber layer, a copper sheath layer, and a wire core. A first cutting device, comprising a pair of first cutting blades, for cutting the first rubber layer of the cable; The second cutting device includes a second cutting blade for cutting the stainless steel layer, the second rubber layer and the copper layer of the cable. A stepper motor, the output end of which is connected to the second cutting device, is used to control the distance between the second cutting device and the cable; The sensor is connected to the second cutting device and is used to obtain the cutting pressure value of the second cutting device; A controller, connected to the sensor and the stepper motor, is used to acquire the feed depth of the stepper motor and the cutting pressure value acquired by the sensor; The testing platform also includes a base and a support plate; The support plate is vertically mounted on the base; a wire feeding hole is provided in the middle of the support plate for feeding the cable at a fixed frequency; a first cutting device is provided on one side of the support plate at the inlet of the wire hole, and a pair of first cutting blades of the first cutting device are arranged opposite each other on both sides of the inlet of the wire hole; a second cutting device is provided on the other side of the support plate at the outlet of the wire hole. The sensor is an S-type sensor; The upper part of the S-shaped sensor is connected to the output end of the stepper motor via an L-shaped bracket, and the lower part of the S-shaped sensor is connected to the second cutting device. The second cutting device includes a cutting motor, a timing belt, a timing pulley, and bearing components; One end of the bearing is connected to the shaft of the synchronous pulley, and the other end of the bearing is connected to the second cutting blade. The cutting motor is mounted on the L-shaped bracket, and the output end of the cutting motor is connected to the synchronous pulley via the synchronous belt. When the cutting motor rotates, the bearing components are driven to rotate synchronously via the synchronous belt, so that the second cutting blade rotates and cuts. The output end of the stepper motor is provided with a lead screw and a slider that cooperates with the lead screw. The slider is connected to the L-shaped bracket. The base has several corner braces at its bottom, and a rib plate is provided between the base and the support plate. The corner braces are made of rubber material. A wire feeding tube is also provided inside the wire feeding hole; The wire feeding tube is provided with a pair of opposing cutting slits on the side of the support plate near the first cutting device, and the pair of cutting slits corresponds to the pair of first cutting blades; the wire feeding tube is provided with a cutting slit on the side of the support plate near the second cutting device, and the cutting slit corresponds to the second cutting blade; The pressure testing methods include: The first rubber layer of the cable is cut using the first cutting device; The stainless steel layer and the second rubber layer of the cable are cut using the second cutting device. Record the cutting pressure of the second cutting device when cutting the stainless steel layer and the second rubber layer; Cutting the stainless steel layer and the second rubber layer of the cable using the second cutting device includes: The controller activates the second cutting device to cause the second cutting blade to cut the cable. The controller obtains the current cutting pressure value of the second cutting device detected by the sensor; The controller determines whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value. If so, the controller controls the stepper motor to extend or retract, so that the second cutting device is displaced toward or away from the cable. The controller determines whether the feed depth of the second cutting device needs to be adjusted based on the current cutting pressure value; if so, the controller controls the stepper motor to extend or retract, causing the second cutting device to shift towards or away from the cable, including: If the controller determines that the cutting pressure of the second cutting device is less than a preset pressure threshold based on the current cutting pressure value, the controller controls the stepper motor to extend, so that the second cutting device moves toward the cable. If the controller determines that the cutting pressure value of the second cutting device is greater than the preset pressure threshold based on the current cutting pressure value, the controller controls the stepper motor to retract, so that the second cutting device is displaced away from the cable.

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