Insulated wire stripping tool and electric stripping device

Abstract

The present application relates to a kind of insulating conductor stripping cutter and electric stripping device, insulating conductor stripping cutter includes: conductor fixing seat, stripping cutter and cutter driving source, cutter driving source is connected with stripping cutter by conductive pull rope, after stripping cutter removes insulating layer, stripping cutter is contacted with conductor layer in insulating conductor, conductor layer is communicated with cutter driving source by conductive pull rope, and cutter driving source is triggered to open, stripping cutter is pulled by conductive pull rope, so that stripping cutter is separated from conductor layer, to ensure the accuracy of depth of cut, while ensuring that insulating layer is cut off and removed, conductor layer will not be damaged;Electric stripping device further includes electric gun that rotates conductor fixing seat, electric gun is electrically connected with stripping cutter, stripping cutter is contacted with conductor layer in insulating conductor, stripping cutter is communicated with electric gun, so that motor in electric gun is short-circuited, electric gun stops rotating, to further ensure that conductor layer will not be damaged.

Description

Technical Field

[0001] This invention relates to the field of cable stripping technology, and in particular to an insulated wire stripping tool and an electric stripping device. Background Technology

[0002] In the power and communications fields, cables are frequently used to transmit electrical and optical signals, including optical cables, electrical cables, and hybrid optical-electric cables. Most cables adopt a layered structure design, with a sheath covering the cable core to protect it. The sheath is generally made of PE or modified materials containing PE or insulating materials. The sheath provides flame retardant, fireproof, moisture-proof, pressure-resistant, and insulation protection for the cable core. However, under normal circumstances, the sheath needs to be removed before the cable is introduced or used.

[0003] Because the sheath is made of PE or modified materials containing PE, which is essentially a thermoplastic resin, a sharp knife can be used to cut open the sheath, and then the sheath can be peeled off along the cut. In actual operation, users are often accustomed to using common electrician's knives to strip the cable. When using an electrician's knife, the user needs to coordinate the tool with both hands. So, when cutting from one end of the cable to the other, it is often necessary to fix the cable, and the blade tip is often not in the correct position, resulting in the cutting going astray. When cutting the cable sheath, it is easy to go astray and accidentally injure the user's fingers or the back of the hand. In addition, manual stripping is inefficient, and some inexperienced workers find it difficult to use directly.

[0004] To avoid the aforementioned problems, existing technologies provide users with dedicated electric cable stripping devices. For example, the invention disclosed in publication number CN206947868U, entitled "An Electric Internal Rotation Cable Making Tool," is an electric cable stripping device that includes an electric drill, a connecting rod, a sleeve, a cutting tool, sandpaper, and a fixing component. It uses an electric drill for power, is fast, and saves time and effort. When using it, the operator simply places the tool on the cable and presses the power button to operate it, making it quick to learn and easy to use.

[0005] While the electric cable stripping device described above can quickly cut the insulation layer of cables, the depth of cut needs to be adjusted in advance, making the operation process complex. If the depth of cut is not adjusted accurately, the insulation layer cannot be cut off if the depth is too shallow, and the internal conductor will be damaged if the depth of cut is too deep. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the difficulty in controlling the cutting depth when stripping the insulation layer outside the insulated wire in the prior art, which causes the insulation layer to be unable to be cut off or to damage the inner conductor layer. The present invention provides an insulated wire stripping tool that can spring back after the stripping tool contacts the conductor layer, and also provides an electric stripping device that can stop working after the stripping tool contacts the conductor layer, thereby ensuring the accuracy of the cutting depth and ensuring that the insulation layer is cut off and removed without damaging the conductor layer.

[0007] To solve the above-mentioned technical problems, the present invention provides an insulated wire stripping tool for removing the insulation layer at the end of an insulated wire, comprising:

[0008] A wire fixing seat, wherein the wire fixing seat has a stripping hole for inserting the end of the insulated wire, and a receiving groove is provided on the side wall of the stripping hole;

[0009] A peeling tool is disposed in the receiving groove, and an elastic element is disposed between the peeling tool and the receiving groove. The elastic element supports the peeling tool and makes the cutting edge of the peeling tool protrude out of the receiving groove.

[0010] A tool drive source is connected to the stripping tool via a conductive pull rope. After the stripping tool cuts off the insulation layer, the stripping tool contacts the conductor layer inside the insulated wire. The conductor layer is connected to the tool drive source via the conductive pull rope, triggering the tool drive source to pull the stripping tool through the conductive pull rope, so that the cutting edge of the stripping tool is received into the receiving groove.

[0011] In one embodiment of the present invention, at least two receiving grooves are provided on the side wall of the stripping hole, the two receiving grooves are separated, and a stripping tool connected to the tool driving source via a conductive pull rope is provided in each receiving groove. When the stripping tool in each receiving groove contacts the conductor layer in the insulated wire, the tool driving source is triggered.

[0012] In one embodiment of the present invention, multiple sets of peeling blades are connected end to end, forming an annular peeling space within the multiple sets of peeling blades.

[0013] In one embodiment of the present invention, the elastic element is a compression spring, and the spring coil of the compression spring in its initial state is provided with an equal pitch gap. The compression spring is subjected to the load of the stripping tool driven by the conductive pull rope, and the compression spring can contract and deform to store elastic potential energy.

[0014] In one embodiment of the present invention, the tool drive source is disposed on the wire fixing seat, and the tool drive source is a winch mechanism, which is capable of winding the conductive rope.

[0015] In one embodiment of the present invention, the tool driving source is a delayed driving source, which is triggered to start and then delayed to shut down.

[0016] In one embodiment of the present invention, abrasive particles are further provided on the outer wall of the peeling hole.

[0017] To address the aforementioned technical problems, the present invention also provides an electric stripping device, comprising the aforementioned insulated wire stripping device, and further comprising:

[0018] An electric gun is mechanically connected to the wire fixing seat, which drives the wire fixing seat to rotate. The electric gun is electrically connected to the stripping tool. After the stripping tool removes the insulation layer, the stripping tool contacts the conductor layer inside the insulated wire, and the stripping tool is connected to the electric gun, causing the motor inside the electric gun to short-circuit, and the electric gun stops rotating.

[0019] In one embodiment of the present invention, a connecting rod is provided between the electric gun and the wire fixing seat. One end of the connecting rod is connected to the output end of the electric gun, and the other end of the connecting rod is connected to the wire fixing seat. The electric gun drives the wire fixing seat to rotate through the connecting rod.

[0020] In one embodiment of the present invention, both ends of the connecting rod are provided with elastic snap-fit ​​connectors, and the electric gun and the wire fixing seat are detachably connected to the connecting rod through the elastic snap-fit ​​connectors.

[0021] The technical solution of the present invention has the following advantages compared with the prior art:

[0022] The insulated wire stripping tool of the present invention has a wire fixing seat with a stripping hole for inserting the end of the insulated wire. The stripping tool is set in the wire fixing seat and is elastically set in a receiving groove in the wire fixing seat. In the initial state, the cutting edge of the stripping tool protrudes from the receiving groove. When the end of the insulated wire is inserted into the stripping hole, the elastic element is squeezed and deformed, causing the elastic element to compress and store energy. When the wire fixing seat is rotated, the elastic element gradually releases the stored energy, driving the stripping tool to remove the insulation layer of the insulated wire. By using an elastically set stripping tool instead of a fixed stripping tool, as long as the set stripping hole is large enough, it can be used to remove the insulation layer of the end of insulated wires of different sizes without the need to repeatedly adjust the position of the stripping tool.

[0023] Furthermore, the insulated wire stripping tool of the present invention is also equipped with a tool drive source, which is connected to the stripping tool via a conductive pull rope. When the stripping tool cuts the insulation layer, the tool drive source is in a closed state and does not provide power to the stripping tool, thus not affecting the cutting action of the stripping tool. After the stripping tool cuts the insulation layer, the stripping tool comes into contact with the conductor layer inside the insulated wire. The conductor layer is a metallic material with a certain degree of conductivity, thereby triggering the start of the tool drive source. The tool drive source pulls the stripping tool and the conductor layer through the conductive pull rope, which can prevent the stripping tool from cutting the conductor layer and causing damage to the conductor layer. At this time, the insulated wire can be taken out from the stripping hole, thus achieving the purpose of removing the end insulation layer.

[0024] While pulling the stripping tool to separate from the conductor layer, the tool drive source compresses and deforms the elastic element, causing the elastic element to store energy. After the tool drive source no longer provides power to the stripping tool, the elastic element releases the stored energy and restores its deformation, thereby driving the stripping tool back to its initial position, completing one stripping action of the insulation layer at the end of the insulated wire.

[0025] The electric stripping device of this invention is equipped with an electric gun that can drive the guide fixing seat to rotate, which further improves the working efficiency of using the insulated wire stripping cutter. It can quickly strip the insulation layer at the end of the insulated wire. Furthermore, the electric stripping device of this invention is also equipped with an electric gun that is electrically connected to the stripping cutter. After the stripping cutter cuts off the insulation layer, the stripping cutter contacts the conductor layer inside the insulated wire. The conductor layer acts as a conductor, connecting the circuit between the stripping cutter and the electric gun, causing the electric gun motor to short-circuit and stop rotating. This prevents the electric gun from driving the guide fixing seat to rotate, further ensuring that the conductor layer is not damaged while the insulation layer is cut off and removed. Attached Figure Description

[0026] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0027] Figure 1 This is a schematic diagram of the internal cross-sectional structure of the insulated wire stripping tool of the present invention;

[0028] Figure 2 This is a schematic diagram of the cross-sectional structure of the insulated wire stripping tool of the present invention;

[0029] Figure 3 This is a schematic diagram of the equivalent circuit structure of the stripping tool triggering the tool drive source to turn on according to the present invention;

[0030] Figure 4 This is a schematic diagram of the structure of the electric peeling device of the present invention.

[0031] Figure 5 This is a schematic diagram of the equivalent circuit structure of the stripping tool triggering the electric gun to stop according to the present invention.

[0032] Explanation of the reference numerals in the instruction manual's attached diagrams: 1. Conductor fixing seat; 2. Stripping tool; 3. Elastic element; 4. Conductive pull rope; 5. Electric gun; 6. Connecting rod. Detailed Implementation

[0033] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0034] Insulated conductors are important carriers for transmitting electrical energy in power distribution network operations. An insulated conductor includes at least a conductor layer and an insulation layer covering the conductor layer. When using insulated conductors, the insulation layer needs to be peeled off to expose the conductor layer, which then undergoes further processing such as polishing and applying conductive paste. As mentioned earlier, when peeling off the insulation layer, the depth of cut using an electric peeling tool is extremely critical. If the cutting depth is too shallow, the insulation layer cannot be cut off; if the cutting depth is too deep, the internal conductor will be damaged. This invention addresses this need by providing the following two specific implementation methods.

[0035] Example 1

[0036] Reference Figure 1 and Figure 2 As shown, this embodiment discloses an insulated wire stripping tool for removing the insulation layer at the end of an insulated wire, comprising: a wire fixing seat 1, a stripping tool 2, and a tool driving source;

[0037] First, to cut the insulation layer of the insulated wire end, a suitable cutting mold is required. Therefore, in this embodiment, the wire fixing seat 1 is provided with a stripping hole. The stripping hole is provided along the axial extension direction of the wire fixing seat 1. The end of the insulated wire can be inserted into the stripping hole. A receiving groove is provided on the side wall of the stripping hole. The stripping cutter 2 is disposed in the receiving groove. In this way, as long as the end of the insulated wire is inserted into the stripping hole, rotating the wire fixing seat 1 with the center of the stripping hole as the axis can drive the stripping cutter 2 to cut the insulation layer outside the insulated wire.

[0038] Secondly, the placement of the stripping tool 2 in the receiving groove needs to be considered. Since the stripping tool 2 is used to cut the insulation layer, its cutting edge needs to protrude beyond the receiving groove. When the insulated wire is inserted into the stripping hole, the protruding stripping tool 2 will interfere with the insertion of the insulated wire. To avoid affecting the insertion of the insulated wire while ensuring that the cutting edge of the stripping tool 2 protrudes beyond the receiving groove, the stripping tool 2 needs to be movably positioned within the receiving groove. Referring to the prior art in the background section, a threaded connection is readily conceived. When the insulated wire is inserted into the stripping hole, the stripping tool 2 is rotated back into the receiving groove, and after the insulated wire is inserted into the stripping hole, the stripping tool 2 is rotated again to protrude beyond the receiving groove. However, as analyzed above, such prior art is complex to operate and requires adjustment of the insertion depth according to the insulation layer thickness of different insulated wires. Therefore, a flexible connection method is provided, in which the stripping tool... An elastic element 3 is provided between the fixture 2 and the receiving groove. In this embodiment, the elastic element 3 is a compression spring. The coil of the compression spring is set with an equal pitch gap in its initial state. When the insulation wire is inserted, the compression spring pushes the stripping tool 2 under load. The compression spring can contract and deform to store elastic potential energy. In its initial state, the compression spring supports the stripping tool 2 and makes the cutting edge of the stripping tool 2 protrude from the receiving groove. When the end of the insulation wire is inserted into the stripping hole, the compression spring is squeezed and deformed, so that the compression spring is compressed and stores energy. The wire fixing seat 1 is rotated, and the stripping tool 2 gradually cuts the insulation layer. The compression spring gradually releases the stored energy, driving the stripping tool 2 to remove the insulation layer of the insulation wire. The elastic stripping tool 2 is used instead of the fixed stripping tool 2. As long as the stripping hole is large enough, it can be used to remove the insulation layer of the end of insulation wires of different sizes without repeatedly adjusting the position of the stripping tool 2.

[0039] Finally, the control of the cutting accuracy needs to be considered. The elastically connected stripping tool 2 can be used to cut insulation layers of different thicknesses. However, due to its constant elastic change, after the insulation layer is removed, it will continue to release elastic potential energy, causing damage to the conductor layer inside the insulation layer. In this embodiment, to solve this problem, a tool drive source is also provided to control the cutting accuracy of the stripping tool 2. The tool drive source is set on the wire fixing seat 1. The tool drive source and the stripping tool 2 are connected by a conductive pull rope 4. The tool drive source is a hoisting mechanism that can wind up the conductive pull rope 4. After the stripping tool 2 removes the insulation layer, the stripping tool 2 contacts the conductor layer inside the insulated wire. The conductor layer is connected to the conductor layer through the conductive pull rope 4. The tool drive source is connected and triggered to pull the stripping tool 2 through the conductive pull rope 4, so that the blade of the stripping tool 2 is received in the receiving groove. The tool drive source pulls the stripping tool 2 to separate it from the conductor layer through the conductive pull rope 4, which can prevent the stripping tool 2 from cutting the conductor layer and causing damage to the conductor layer. At this time, the insulated wire can be taken out from the stripping hole, which can achieve the purpose of removing the end insulation layer. In addition, while pulling the stripping tool 2 to separate it from the conductor layer, the tool drive source squeezes the elastic element 3 to deform, so that the elastic element 3 is compressed and stores energy. After the tool drive source no longer provides power to the stripping tool 2, the elastic element 3 releases the stored energy and restores its deformation, thereby driving the stripping tool 2 back to the initial position, completing one stripping action of the end insulation layer of the insulated wire.

[0040] Specifically, based on the above requirements, in order to achieve the purpose of triggering the tool drive source after the stripping tool 2 contacts the conductor layer inside the insulated wire, refer to Figure 3 As shown, converting the stripping tool 2 to trigger the tool drive source to turn on into an equivalent circuit requires at least two conductive pull ropes 4. The two conductive pull ropes 4 are respectively connected to the positive and negative terminals of the tool drive source. Initially, the two conductive pull ropes 4 are disconnected, which is equivalent to the switch in the circuit being open. At this time, the tool drive source cannot work. When the stripping tool 2 removes the insulating layer, the end of the conductive pull rope 4 contacts the conductor layer. The conductor layer is equivalent to the dielectric. Connecting the two conductive pull ropes 4, which are respectively connected to the positive and negative terminals of the tool drive source, is equivalent to the switch in the circuit being closed. Thus, the tool drive source is turned on and can start working.

[0041] Specifically, depending on the actual use, the two conductive pull ropes 4 can be connected to the two stripping blades 2 respectively. At least two receiving slots need to be opened on the side wall of the stripping hole. The two receiving slots are separated. Each receiving slot is provided with a stripping blade 2 connected to the blade driving source through the conductive pull rope 4. Alternatively, the two conductive pull ropes 4 can be connected to one stripping blade 2, with only one receiving slot and one stripping blade 2. In this case, the two conductive pull ropes 4 need to be insulated on the same stripping blade 2. After the stripping blade 2 cuts off the insulation layer, both conductive pull ropes 4 are in contact with the conductor layer, which can also form the conduction of the blade driving source circuit.

[0042] In this embodiment, since the insulating layer is removed by rotating circumferential cutting, a large number of cutting tools are needed to improve the efficiency of circumferential cutting. Therefore, multiple end-to-end receiving grooves are formed around the peeling hole on the side wall of the peeling hole, and a peeling tool 2 is provided in each receiving groove. In this way, the multiple peeling tools 2 form a ring structure, creating a ring-shaped peeling space within the multiple peeling tools 2, which makes it easier to achieve circumferential cutting of the insulating layer. (Refer to...) Figure 2 As shown, in this embodiment, four peeling blades 2 are set up and divided into two groups of two. The two peeling blades 2 in each group are connected to the same conductive pull rope 4.

[0043] In this embodiment, based on actual usage requirements, after the tool drive source is triggered and turned on, the conductive pull rope 4 pulls the stripping tool 2 to separate from the conductor layer. To prevent the stripping tool 2 from contacting the conductor layer again, the tool drive source needs to continuously apply tension to pull the stripping tool 2, preventing the stripping tool 2 from resetting under the pressure of the elastic element 3. However, in order to ensure normal continuous operation, after the insulated wire is removed from the stripping hole, the tool drive source needs to stop applying tension to pull the stripping tool 2, so that the stripping tool 2 can automatically reset and prepare for the next operation. Therefore, in this embodiment, the tool drive source is set as a delayed drive source, referring to... Figure 3 As shown, a delay switch is set on the circuit where the tool drive source is turned on, which enables the tool drive source to be turned off after a delay after being triggered to start. The delay time can be set from 1 to 30 seconds as required.

[0044] Specifically, as mentioned above, when using insulated wires, after the insulation layer is peeled off, the conductor layer needs to be further polished. In this embodiment, abrasive particles are also provided on the outer wall of the peeling hole. After the insulation layer is removed by the peeling tool 2, the conductor layer can be directly polished.

[0045] Example 2

[0046] Based on the above embodiment 1, in order to drive the wire fixing seat 1 to rotate and achieve rapid cutting of the insulation layer, in this embodiment, referring to Figure 4 As shown, an electric stripping device is disclosed, which is equipped with an electric gun 5 that can drive the guide fixing seat to rotate, further improving the working efficiency of the insulated wire stripping cutter and enabling the rapid stripping of the insulation layer at the end of the insulated wire.

[0047] Specifically, a connecting rod 6 is provided between the electric gun 5 and the wire fixing seat 1. One end of the connecting rod 6 is connected to the output end of the electric gun 5, and the other end of the connecting rod 6 is connected to the wire fixing seat 1. The electric gun 5 drives the wire fixing seat 1 to rotate through the connecting rod 6.

[0048] Both ends of the connecting rod 6 are provided with elastic snap-fit ​​connectors, and the electric gun 5 and the wire fixing seat 1 are detachably connected to the connecting rod 6 through the elastic snap-fit ​​connectors.

[0049] In this embodiment, in order to control the cutting accuracy in conjunction with the insulation wire stripping tool of Embodiment 1, the characteristic that the stripping tool 2 is conductive with the conductor layer is also utilized to control the operation of the electric gun 5, referring to... Figure 5 As shown, the operation of the stripping tool 2 triggering the electric gun 5 is converted into an equivalent circuit. Similarly, two wires are set to connect the positive and negative terminals of the stripping tool 2 and the electric gun 5. Initially, the two wires are disconnected, which is equivalent to the switch in the circuit being open. At this time, the electric gun 5 can work normally. When the stripping tool 2 removes the insulation layer, the end of the wire contacts the conductor layer. The conductor layer is equivalent to the dielectric. The conductor layer, as a conductor, connects the circuit between the stripping tool 2 and the electric gun 5, which is equivalent to the switch in the circuit being closed. This causes the motor in the electric gun 5 to short-circuit, and the electric gun 5 stops rotating, thus no longer driving the guide fixing seat to rotate. This further ensures that the insulation layer is cut off and removed without damaging the conductor layer.

[0050] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. An insulated wire stripping tool for removing the insulation layer from the end of an insulated wire, characterized in that, include: A wire fixing seat, wherein the wire fixing seat has a stripping hole for inserting the end of the insulated wire, and a receiving groove is provided on the side wall of the stripping hole; A peeling tool is disposed in the receiving groove, and an elastic element is disposed between the peeling tool and the receiving groove. The elastic element supports the peeling tool and makes the cutting edge of the peeling tool protrude out of the receiving groove. A tool drive source is connected to the stripping tool via a conductive pull rope. After the stripping tool cuts off the insulation layer, the stripping tool contacts the conductor layer inside the insulated wire. The conductor layer is connected to the tool drive source via the conductive pull rope, triggering the tool drive source to pull the stripping tool through the conductive pull rope, so that the cutting edge of the stripping tool is received into the receiving groove.

2. The insulated wire stripping tool according to claim 1, characterized in that: At least two receiving slots are provided on the side wall of the stripping hole, and the two receiving slots are separated. Each receiving slot is provided with a stripping tool connected to the tool drive source by a conductive pull rope. When the stripping tool in each receiving slot contacts the conductor layer in the insulated wire, the tool drive source is triggered.

3. The insulated wire stripping tool according to claim 2, characterized in that: The multiple sets of peeling blades are connected end to end, forming an annular peeling space within the multiple sets of peeling blades.

4. The insulated wire stripping tool according to claim 2, characterized in that: The elastic element is a compression spring. The spring coil of the compression spring in its initial state is set with an equal pitch gap. The compression spring is subjected to the load of the stripping tool driven by the conductive pull rope. The compression spring can contract and deform to store elastic potential energy.

5. The insulated wire stripping tool according to claim 1, characterized in that: The tool drive source is mounted on the wire fixing seat. The tool drive source is a winch mechanism, which can wind up the conductive rope.

6. The insulated wire stripping tool according to claim 1, characterized in that: The tool drive source is a delayed drive source, which is triggered to start and then delayed to shut down.

7. The insulated wire stripping tool according to claim 1, characterized in that: Abrasive particles are also provided on the outer wall of the peeling hole.

8. An electric stripping device, comprising the insulating wire stripping blade according to any one of claims 1 to 7, characterized in that: Also includes: An electric gun is mechanically connected to the wire fixing seat, which drives the wire fixing seat to rotate. The electric gun is electrically connected to the stripping tool. After the stripping tool removes the insulation layer, the stripping tool contacts the conductor layer inside the insulated wire, and the stripping tool is connected to the electric gun, causing the motor inside the electric gun to short-circuit, and the electric gun stops rotating.

9. The electric stripping device according to claim 8, characterized in that: A connecting rod is provided between the electric gun and the wire fixing seat. One end of the connecting rod is connected to the output end of the electric gun, and the other end of the connecting rod is connected to the wire fixing seat. The electric gun drives the wire fixing seat to rotate through the connecting rod.

10. The electric peeling device according to claim 9, characterized in that: Both ends of the connecting rod are provided with elastic snap-fit ​​connectors, and the electric gun and the wire fixing seat are detachably connected to the connecting rod through the elastic snap-fit ​​connectors.

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