Hot stripping pliers for cutting belt wire

Abstract

The utility model belongs to the field of optical fiber stripping, and provides a pair of thermal stripping pliers for belt wire cutting, which comprises a pliers body, the pliers body comprises a base and a gland, one end of the gland is hinged with the base through a rotating shaft, a heating plate is arranged on one side, opposite to the gland, of the base, a heat insulation plate opposite to the heating plate is arranged on the gland, and the thermal stripping pliers further comprise a first knife group and a second knife group, the first knife set comprises a first leather knife and a second leather knife, the first leather knife is installed at the end, close to the rotating shaft, of the base, the second leather knife and the first leather knife are oppositely installed on the gland, and the extending direction of a cutting edge of the first leather knife is perpendicular to the axial direction of the rotating shaft; the second cutter set comprises a first-layer cutter and a second-layer cutter, the first-layer cutter is installed at the end, away from the rotating shaft, of the base, the second-layer cutter and the first-layer cutter are oppositely installed on the gland, and the extending direction of a cutting edge of the first-layer cutter is parallel to the axial direction of the rotating shaft. The pair of hot stripping pliers not only can remove a protective layer on the outermost layer of a rubber-insulated wire optical fiber, but also can remove a coating layer on the surface of a fiber core, and is convenient and practical.

Description

Technical Field

[0001] The utility model relates to the technical field of optical fiber stripping, in particular to a thermal stripping pliers for cutting sheathed wires. Background Art

[0002] Before the optical fiber is fused, it is necessary to cut the optical fiber and strip the coating, so a fiber stripping tool is needed. Traditional fiber stripping tools generally include Miller pliers and hot stripping pliers (clamps). When using Miller pliers for fiber stripping, Miller pliers can remove the outermost protective skin of the optical fiber and the coating coated on the surface of the fiber core. However, the use of Miller pliers requires high skills, otherwise it is easy to damage the fiber core and affect the fusion effect. In addition, Miller pliers have a good effect in stripping single-core optical fibers, but the stripping effect on ribbon optical fibers is not ideal. Due to defects in the structural design, the coating of the ribbon optical fiber cannot be completely stripped. Hot stripping pliers generally soften the coating on the surface of the fiber core by heating, and then strip the fiber core with a cutter. Because it is heated first and then removed, the hot stripping pliers have a good stripping effect and less damage to the fiber core. It is suitable for stripping the coating of a single fiber core and multiple fiber cores at the same time, and is particularly suitable for occasions with high fiber stripping requirements. However, the existing thermal stripping pliers can generally only remove the coating layer of the fiber core, and cannot remove the outermost protective layer of the optical fiber. The outermost protective layer of the optical fiber needs to be removed with the help of other tools, and the function is relatively simple. When working outdoors, additional tools and thermal stripping pliers are required to remove the protective layer, which is inconvenient to carry.

[0003] The technical problem to be solved by the utility model is: how to solve the problem that the existing thermal stripping pliers have a single function and cannot directly perform a fiber stripping operation on the covered optical fiber. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model aims to provide a thermal stripping pliers for cutting sheathed optical fibers, which can remove both the outermost protective sheath of the sheathed optical fiber and the coating layer wrapped around the surface of the fiber core, and is convenient and practical.

[0005] The technical solution adopted by the utility model is: a thermal stripping pliers for cutting leather wires, comprising a pliers body, the pliers body comprising a base and a gland, one end of the gland is hinged to the base through a rotating shaft, a heating plate is arranged on the side opposite to the base and the gland, an insulating plate opposite to the heating plate is arranged on the gland, and also comprises:

[0006] A first knife group, the first knife group includes a first dermatome and a second dermatome, the first dermatome is mounted on the base at one end close to the rotating shaft, the second dermatome is mounted on the gland opposite to the first dermatome, and the extending direction of the blade of the first dermatome is perpendicular to the axial direction of the rotating shaft;

[0007] The second knife group includes a first layer of knives and a second layer of knives. The first layer of knives is installed on the end of the base away from the rotating shaft, and the first layer of knives is located at one end of the heating plate. The second layer of knives and the first layer of knives are installed on the pressure cover opposite to each other. The extension direction of the cutting edge of the first layer of knives is parallel to the axial direction of the rotating shaft.

[0008] The thermal stripping pliers with skinned wire cutting of the present application have the functions of removing the outermost protective layer of the skinned optical fiber and removing the coating layer on the surface of the core by providing a first knife group for removing the outermost protective layer of the skinned optical fiber and a second knife group cooperating with the heating plate for removing the coating layer on the surface of the core. There is no need to carry multiple fiber stripping tools when working outdoors, which is convenient and practical. The first knife group is arranged near the rotating shaft, so the protective layer can be cut with less force, which is more labor-saving and convenient for cutting the protective layer with higher hardness. In addition, the directions of the first knife group and the second knife group are arranged to be perpendicular to each other, which can make full use of the space and make the structure of the thermal stripping pliers more compact and easy to carry.

[0009] In some embodiments, the caliper body further includes an elastic member, and the elastic member is used to keep the pressure cover and the base in an open state.

[0010] By adopting the above technical solution, the elastic member can be set to keep the pressure cover and the base in an open state, which is convenient for placing the optical fiber into the first knife group or the second knife group. It can also improve safety and avoid injuries to the operator caused by the closing of the pressure cover and the base when placing the optical fiber. When the applied pressure is released, the first pressure arm and the second pressure arm automatically open and automatically reset to facilitate the removal of waste generated by cutting.

[0011] In some embodiments, the elastic body is a torsion spring, the spiral portion of the torsion spring is sleeved on the rotating shaft, and two arms of the torsion spring are respectively in contact with the pressure cover and the base.

[0012] In some embodiments, both the base and the pressure cover are provided with limiting grooves corresponding to the supporting arms.

[0013] By adopting the above technical solution, by setting the limit groove, the position of the torsion spring arm can be limited to prevent the torsion spring from shifting and causing the gland and the base to be unable to remain in an open state.

[0014] In some embodiments, the first dermatome is provided with a first accommodating groove connected to the cutting edge, and the second dermatome is provided with a second accommodating groove connected to the cutting edge. The first dermatome is docked with the second dermatome so that the first accommodating groove and the second accommodating groove form a protective groove for avoiding the empty fiber core.

[0015] By adopting the above technical solution, when the protective skin on the surface of the sheathed cable is cut, the fiber core will fall into the protective groove to prevent the fiber core from being cut, thereby reducing the waste of optical fiber and ensuring the subsequent optical fiber fusion effect.

[0016] In some embodiments, a positioning groove for positioning the cable is provided on the first dermatome, and the positioning groove is communicated with the first accommodating groove.

[0017] By adopting the above technical solution, the positioning groove can play the role of pre-positioning the optical fiber on the first dermatome, thereby preventing the optical fiber from slipping off the first dermatome before the first dermatome is connected to the second dermatome, thereby preventing empty cutting.

[0018] In some embodiments, the cutting edge of the second dermatome gradually extends toward the base from an end close to the rotating shaft to an end far away from the rotating shaft.

[0019] By adopting the above technical solution, the cutting edge of the second dermatome is set to an inclined structure, which can prevent the optical fiber of the dermatome from sliding along the cutting edge of the second dermatome when the second dermatome is pressed down toward the first dermatome, resulting in an uneven incision and affecting the cutting effect.

[0020] In some embodiments, a fine-tuning screw is provided on the pressure cover, and the fine-tuning screw corresponds to the second layer of knives and is used to adjust the distance between the first layer of knives and the second layer of knives.

[0021] By adopting the above technical solution, the distance between the first layer of knives and the second layer of knives can be finely adjusted, so that the first knife group can be suitable for fiber cores with different diameters, thereby expanding the application range.

[0022] In some embodiments, a first groove is provided on the base, and the first groove is located between the heating plate and the rotating shaft. A second groove is provided on the pressure cover, and the second groove is located between the insulation plate and the rotating shaft. The pressure cover covers the base so that the first groove and the second groove form a wire threading groove, and the wire threading groove passes through the pliers body. The first knife group is arranged at one end of the wire threading groove.

[0023] By adopting the above technical solution, by setting up a wire threading groove, it is possible to position the sheathed optical fiber when cutting, so that the sheathed optical fiber is placed more stably when placed on the reference, and it can also avoid the sheathed optical fiber from interfering with the pressure cover and the base cover. Setting the wire threading groove as a through groove can facilitate the discharge of the protective sheath after cutting.

[0024] In some embodiments, the clamp body further includes a controller connected to the base, a control panel is provided on the surface of the controller, a power supply is provided inside the controller, and the control panel is electrically connected to the heating plate and the power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a closed state of a heat stripping pliers for cutting a leather wire according to a preferred embodiment of the utility model;

[0026] Figure 2 for Figure 1 The schematic diagram of the structure of the thermal stripping pliers with leather wire cutting in the open state shown;

[0027] Figure 3for Figure 2 Another perspective structural schematic diagram of the thermal stripping pliers with leather wire cutting in an open state shown;

[0028] Figure 4 for Figure 1 The schematic diagram of the structure after the heat stripping pliers with leather wire cutting are removed;

[0029] Figure 5 for Figure 1 The schematic diagram of the structure of the gland in the hot stripping pliers with skin wire cutting shown;

[0030] Figure 6 for Figure 1 The schematic diagram of the structure of the first knife group in the hot stripping pliers for cutting leather wire is shown.

[0031] In the figure: 100, hot stripping pliers with leather wire cutting; 10, pliers body; 11, base; 12, pressure cover; 13, rotating shaft; 14, heating plate; 15, insulation plate; 16, elastic member; 17, controller; 171, control panel; 20, first knife group; 21, first leather knife; 210, first receiving groove; 211, positioning groove; 22, second leather knife; 220, second receiving groove; 30, second knife group; 31, first layer knife; 32, second layer knife. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. When the number of an element is referred to as "plurality", it may be any number of two or more. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only implementation method.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] See also Figures 1 to 6 , which is a preferred embodiment of the utility model, a thermal stripping pliers 100 for cutting a sheathed optical fiber, comprises a pliers body 10, and a first knife group 20 installed on the pliers body 10 for cutting the protective skin of the sheathed optical fiber and a second knife group 30 for cutting the coating wrapped on the surface of the fiber core. The thermal stripping pliers 100 for cutting a sheathed optical fiber of the present application can remove the outermost protective skin of the sheathed optical fiber and the coating wrapped on the surface of the fiber core. It is convenient and practical, reduces the number of tools carried for outdoor operations, and is easy to carry.

[0036] See also Figures 1 to 3 The clamp body 10 includes a base 11 and a pressure cover 12. One end of the pressure cover 12 is hinged to the base 11 through a rotating shaft 13. A heating plate 14 is arranged on the opposite side of the base 11 and the pressure cover 12. An insulating plate 15 opposite to the heating plate 14 is arranged on the pressure cover 12. The heating plate 14 is fixed to the base 11 through a first pressure plate, and a mark for prompting high temperature is arranged on the first pressure plate to avoid accidental touch by the user. Similarly, the insulating plate 15 is fixed to the pressure cover 12 through a second pressure plate. The insulating plate 15 cooperates with the heating plate 14 to heat the coating layer wrapped on the surface of the fiber core to soften it.

[0037] Please continue reading Figure 1 and Figure 2 The first knife group 20 includes a first skin knife 21 and a second skin knife 22. The first skin knife 21 is installed on one end of the base 11 close to the rotating shaft 13, and the second skin knife 22 is installed on the pressure cover 12 relative to the first skin knife 21. The extension direction of the blade of the first skin knife 21 is perpendicular to the axial direction of the rotating shaft 13. The first knife group 20 is set at a position close to the rotating shaft 13. According to the lever principle, a smaller force can be used to cut off the protective skin with higher hardness, which is convenient for the cutting operation of the protective skin. The second knife group 30 includes a first knife layer 31 and a second knife layer 32. The first knife layer 31 is installed on the end of the base 11 away from the rotating shaft 13, and the first knife layer 31 is located at one end of the heating plate 14. The second knife layer 32 is installed on the pressure cover 12 relative to the first knife layer 31. The extension direction of the cutting edge of the first knife layer 31 is parallel to the axial direction of the rotating shaft 13. The first knife group 20 and the second knife group 30 are arranged perpendicular to each other, so that the first knife group 20 and the second knife group 30 do not interfere with each other when working, and can make full use of the space of the pliers body 10, so that the structure of the hot stripping pliers is more compact and easy to carry.

[0038] Preferably, the clamp body 10 further includes an elastic member 16, and the elastic member 16 is used to keep the gland 12 and the base 11 in an open state. By providing the elastic member 16, the gland 12 and the base 11 can be kept in an open state, which is convenient for placing the optical fiber into the first knife group 20 or the second knife group 30, and can also improve safety, so as to avoid the gland 12 and the base 11 closing when placing the optical fiber, causing harm to the operator. When the applied pressure is released, the first pressing arm and the second pressing arm automatically open, and automatically reset to facilitate the removal of waste generated by cutting. In this embodiment, the elastic body is a torsion spring, and the spiral part of the torsion spring is sleeved on the rotating shaft 13. The two arms of the torsion spring are respectively in contact with the gland 12 and the base 11, and the base 11 and the gland 12 are both provided with limit grooves corresponding to the arms. By providing the limit grooves, the position of the torsion spring arm can be limited to prevent the torsion spring from shifting and failing to keep the gland 12 and the base 11 in an open state. In other embodiments, the elastic member 16 may also be a helical compression spring, a spring, a pneumatic spring, or a hydraulic spring.

[0039] Please also read Figure 3 and Figure 6 The first dermatome 21 is provided with a first receiving groove 210 connected to the cutting edge, and the second dermatome 22 is provided with a second receiving groove 220 connected to the cutting edge. The first dermatome 21 and the second dermatome 22 are butted together, so that the first receiving groove 210 and the second receiving groove 220 form a protective groove to avoid the empty fiber core. When cutting the protective skin on the surface of the sheathed wire, the fiber core will fall into the protective groove to prevent cutting the fiber core, thereby reducing the waste of optical fiber and ensuring the subsequent fiber fusion effect. In order to avoid scratching the fiber core, the diameter of the protective groove should be slightly larger than the diameter of the fiber core.

[0040] In one embodiment, the first dermatome 21 is further provided with a positioning groove 211 for positioning the cable, and the positioning groove 211 is connected to the first receiving groove 210. The positioning groove 211 can play a role in pre-positioning the sheathed optical fiber on the first dermatome 21, so as to prevent the sheathed optical fiber from slipping off the first dermatome 21 before the first dermatome 21 is docked with the second dermatome 22, thereby causing empty cutting.

[0041] like Figure 5 and Figure 6As shown, the cutting edge of the second dermatome 22 gradually extends toward the base 11 from one end close to the rotating shaft 13 to the end away from the rotating shaft 13. The cutting edge of the second dermatome 22 is set as an inclined structure, which can prevent the skin line optical fiber from sliding along the cutting edge of the second dermatome 22 when the second dermatome 22 is pressed down toward the first dermatome 21, resulting in an uneven incision and affecting the cutting effect, because when the pressure cover 12 drives the second dermatome 22 to dock with the first dermatome 21, the first dermatome 21 and the second dermatome 22 are connected in a scissor-like manner, that is, the cutting edge close to the rotating shaft 13 will contact first, and the cutting edge away from the rotating shaft 13 will contact later. If the cutting edge of the second dermatome 22 is flat, when the pressure cover 12 drives the second dermatome 22 to be pressed down, the cutting edge of the second dermatome 22 will push the skin line optical fiber in the direction away from the rotating shaft 13, resulting in an oblique incision, affecting the cutting accuracy.

[0042] In this embodiment, a fine-tuning screw (not shown) is provided on the gland 12, and the fine-tuning screw corresponds to the second layer of cutters 32. By adjusting the depth of the fine-tuning screw screwed into the gland 12, the distance between the first layer of cutters 31 and the second layer of cutters 32 can be adjusted. The distance between the first layer of cutters 31 and the second layer of cutters 32 can be fine-tuned, so that the first cutter group 20 can be applied to fiber cores of different diameters, thereby expanding the scope of application.

[0043] like Figure 4 and Figure 5 As shown, the base 11 is provided with a first groove (not marked in the figure), the first groove is located between the heating plate 14 and the rotating shaft 13, the pressure cover 12 is provided with a second groove (not marked in the figure), the second groove is located between the insulation plate 15 and the rotating shaft 13, the pressure cover 12 covers the base 11 so that the first groove and the second groove form a threading groove (not marked in the figure), the threading groove runs through the pliers body 10, and the first knife group 20 is arranged at one end of the threading groove. By setting the threading groove, the sheathed optical fiber can be positioned when cutting, so that the sheathed optical fiber is placed more stably when it is referenced, and it can also avoid the interference of the sheathed optical fiber on the covering of the pressure cover 12 and the base 11. Setting the threading groove as a through groove can facilitate the discharge of the protective skin after cutting.

[0044] In this embodiment, the clamp body 10 also includes a controller 17 connected to the base 11. A control panel 171 is provided on the surface of the controller 17. A power supply (not shown) is provided inside the controller 17. The control panel 171 is electrically connected to the heating plate 14 and the power supply. The control panel is used to control the operation of the heating plate 14. The power supply is used to provide electrical energy to the heating plate 14. A charging port (not shown) for replenishing electrical energy for the power supply is also provided on the side of the controller 17.

[0045] When stripping the protective sheath of the sheathed optical fiber, place the sheathed optical fiber flatly along the first groove on the base 11, and make the sheathed optical fiber fall into the positioning groove 211, and then press the pressure cover 12 up and down toward the base 11. After being pressed down into place, one hand keeps the pressure cover 12 and the base 11 pressed together, and the other hand pulls the sheathed optical fiber toward the outside of the pliers body 10 in a direction perpendicular to the first knife group 20 to strip off the protective sheath, and then release the pressure cover 12. Under the action of the elastic member 16, the pressure cover 12 automatically pops up, and the protective sheath after being removed is poured out, completing the protective sheath cutting operation.

[0046] To strip off the coating wrapped on the surface of the fiber core, first set the relevant parameters on the control panel 171, then place the fiber core with the protective skin removed on the heating plate 14, and transfer the fiber core to the first layer of knife 31 in a direction perpendicular to the axial direction of the rotating shaft 13, then press the pressure cover 12 toward the base 11, and after heating to the specified time and temperature, one hand continues to keep the pressure cover 12 and the base 11 pressed together, and the other hand pulls the fiber core toward the outside of the clamp body 10 in a direction perpendicular to the second knife group 30 to remove the coating, loosen the pressure cover 12, and the pressure cover 12 automatically pops up under the action of the elastic member 16, pours out the removed coating, and completes the coating cutting operation.

[0047] The thermal stripping pliers 100 with skinned wire cutting of the present application has the functions of removing the outermost protective layer of the skinned optical fiber and removing the coating layer on the surface of the core by providing a first knife group 20 for removing the outermost protective layer of the skinned optical fiber and a second knife group 30 for cooperating with the heating plate 14 for removing the coating layer on the surface of the core. There is no need to carry multiple fiber stripping tools when working outdoors, which is convenient and practical. The first knife group 20 is arranged near the rotating shaft 13, so that the protective layer can be cut with less force, which is more labor-saving and convenient for cutting the protective layer with higher hardness. In addition, the directions of the first knife group 20 and the second knife group 30 are arranged to be perpendicular to each other, which can make full use of the space and make the structure of the thermal stripping pliers more compact and easy to carry.

[0048] Finally, it should be noted that the above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thermal stripping pliers (100) for cutting a stripped wire, comprising a pliers body (10), the pliers body (10) comprising a base (11) and a gland (12), one end of the gland (12) being hinged to the base (11) via a rotating shaft (13), a heating plate (14) being arranged on a side opposite to the base (11) and the gland (12), and an insulating plate (15) being arranged on the gland (12) opposite to the heating plate (14), wherein: Also includes: A first knife group (20), the first knife group (20) comprising a first dermatome (21) and a second dermatome (22), the first dermatome (21) being mounted on an end of the base (11) close to the rotating shaft (13), the second dermatome (22) being mounted on the pressure cover (12) opposite to the first dermatome (21), the cutting edge of the first dermatome (21) extending in a direction perpendicular to the axial direction of the rotating shaft (13); A second knife group (30), the second knife group (30) comprises a first layer of knives (31) and a second layer of knives (32), the first layer of knives (31) being mounted on an end of the base (11) away from the rotating shaft (13), and the first layer of knives (31) being located at one end of the heating plate (14), the second layer of knives (32) being mounted on the pressure cover (12) relative to the first layer of knives (31), and the extending direction of the cutting edge of the first layer of knives (31) being parallel to the axial direction of the rotating shaft (13).

2. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The pliers body (10) further comprises an elastic member (16), wherein the elastic member (16) is used to keep the pressure cover (12) and the base (11) in an open state.

3. The thermal stripping pliers (100) for cutting leather wire according to claim 2, characterized in that: The elastic member is a torsion spring, the spiral portion of the torsion spring is sleeved on the rotating shaft (13), and the two arms of the torsion spring are respectively in contact with the pressure cover (12) and the base (11).

4. The thermal stripping pliers (100) for cutting leather wire according to claim 3, characterized in that: The base (11) and the pressure cover (12) are both provided with limiting grooves corresponding to the support arms.

5. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The first dermatome (21) is provided with a first receiving groove (210) connected to the cutting edge, and the second dermatome (22) is provided with a second receiving groove (220) connected to the cutting edge. The first dermatome (21) and the second dermatome (22) are butt-jointed so that the first receiving groove (210) and the second receiving groove (220) form a protective groove for avoiding an empty fiber core.

6. The thermal stripping pliers (100) for cutting leather wire according to claim 5, characterized in that: The first dermatome (21) is provided with a positioning groove (211) for positioning the cable, and the positioning groove (211) is communicated with the first accommodating groove (210).

7. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The cutting edge of the second dermatome (22) gradually extends toward the base (11) from an end close to the rotating shaft (13) to an end far away from the rotating shaft (13).

8. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The pressure cover (12) is provided with a fine-tuning screw rod, which corresponds to the second layer of knives (32) and is used to adjust the distance between the first layer of knives (31) and the second layer of knives (32).

9. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The base (11) is provided with a first groove, the first groove is located between the heating plate (14) and the rotating shaft (13), the pressure cover (12) is provided with a second groove, the second groove is located between the insulation plate (15) and the rotating shaft (13), the pressure cover (12) covers the base (11) so that the first groove and the second groove form a threading groove, the threading groove passes through the pliers body (10), and the first knife group (20) is arranged at one end of the threading groove.

10. The thermal stripping pliers (100) for cutting leather wire according to claim 1, characterized in that: The clamp body (10) further comprises a controller (17) connected to the base (11); a control panel (171) is arranged on the surface of the controller (17); a power supply is arranged inside the controller (17); and the control panel (171) is electrically connected to the heating plate (14) and the power supply.

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