Portable cable sheath cutting device

Abstract

The utility model provides a portable cable sheath cutting device which comprises a semi-open type working support, and a wire feeding mechanism and a cutting mechanism are sequentially installed on the working support. The cutting mechanism comprises two line pressing rollers and a line lifting wheel, the two line pressing rollers are fixed to the upper portion of the working support side by side, the positions of the line pressing rollers are consistent with the line feeding height of the line feeding mechanism, the line lifting wheel is arranged below the line pressing rollers in a liftable mode, and the line lifting wheel and the two line pressing rollers are arranged in an isosceles triangle mode. A plurality of convex teeth for increasing friction are arranged on the wire lifting wheel, and a wheel shaft of the wire lifting wheel penetrates through the vertical mounting plate and then is connected with a second handle for driving; a blade used for cutting and tensioning the cable skin is arranged above the cable lifting wheel, the blade is fixed to the upper arc plate of the working support through a knife rest, and the edge portion of the blade faces downwards. According to the utility model, the cable sheath can be rapidly cut, the cable sheath cutting speed is obviously improved, and the risk that the blade hurts hands is avoided.

Description

Technical Field

[0001] The utility model relates to a cutting device, in particular to a portable cable sheath cutting device. Background Art

[0002] Cables are needed in various equipment, distribution cabinets and distribution boxes, etc., and are connected to the equipment through the copper nose at the end of the cable; if the cable contact is poor, the copper nose of the cable needs to be removed, the cable needs to be cut and peeled, and a new copper nose needs to be installed on the new wire core. Usually, after the electrician removes the copper nose, he needs to hold an electrician's knife or a paper cutter to make a longitudinal cut on the cable skin, and then carefully peel off the insulating outer skin of the cable head, insert a new copper nose, crimp it, and fix it with a screw cap, which is time-consuming and labor-intensive, and inefficient. The cutting process of the cable skin can easily scratch your fingers, and the controllability of the cutting depth is poor. Cutting too deep will scratch the wire core; especially in winter, the cable skin hardens at low temperatures, cutting is very laborious and more likely to hurt your hands, and you need to wear thick gloves for protection, but wearing gloves for cutting will significantly increase the chance of scratching the wire core. Utility Model Content

[0003] The utility model provides a convenient cable sheath cutting device to overcome the disadvantages of the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is:

[0005] A convenient cable sheath cutting device comprises a semi-open working support formed by a vertical mounting plate, an upper arc plate and a lower flat plate, a wire feeding mechanism for centering and continuous wire feeding and a cutting mechanism for cutting the cable sheath are sequentially mounted on the working support; the cutting mechanism comprises two wire pressing rollers and a wire lifting wheel, the two wire pressing rollers are fixed side by side on the upper part of the working support, and the positions of the wire pressing rollers are consistent with the wire feeding height of the wire feeding mechanism, the wire lifting wheel is arranged below the wire pressing roller in a liftable manner, and the wire lifting wheel and the two wire pressing rollers form an isosceles triangle arrangement; the wire lifting wheel is provided with a plurality of convex teeth for increasing friction, and the wheel axle of the wire lifting wheel passes through the vertical mounting plate and is connected to a second handle for driving; a blade for cutting the tensioned cable sheath is arranged above the wire lifting wheel, the blade is fixed to the upper arc plate of the working support through a blade holder, and the cutting edge of the blade faces downward.

[0006] A further improvement of the utility model is that a vertical adjustment groove is provided on the vertical mounting plate along the height direction, and a shaft tube which can slide in the groove is slidably installed in the adjustment groove. The shaft tube passes through the vertical mounting plate and is locked by a first locking nut; the axle of the wire lifting wheel passes through the shaft tube and is fixedly connected to the second handle.

[0007] A further improvement of the utility model is that: micro bearings are built into the two ends of the shaft-threading tube, and the wire-lifting wheel axle and the micro bearings are clearance-matched.

[0008] A further improvement of the utility model is that the wire feeding mechanism comprises a fixed clamping end and a movable clamping end which are used in conjunction with each other, the fixed clamping end and the movable clamping end are both V-shaped, and the opening directions of the clamping arms are arranged opposite to each other, and the openings enclose a cable accommodating area; the fixed clamping end is fixedly connected to the vertical mounting plate, and the movable clamping end realizes left and right translation through the meshing of gears and racks.

[0009] A further improvement of the utility model is that: the movable clamping end is fixedly connected to a rack, and the other end of the rack penetrates the vertical mounting plate and meshes with the gear; the gear is fixedly connected to the vertical mounting plate through a bearing seat, and the first handle is connected to the wheel axle of the gear.

[0010] A further improvement of the utility model is that a long strip-shaped limiting groove is opened on the fixed clamping arm of the fixed clamping end along the length direction, and the two movable clamping arms of the movable clamping end are respectively correspondingly inserted into the limiting grooves of the fixed clamping arm and translate in the limiting grooves.

[0011] A further improvement of the utility model is that: the roots of the fixed clamping arm and the movable clamping arm are both provided with a guide wheel, and the outer diameter of the guide wheel is larger than the outer diameter of the fixed clamping arm and the movable clamping arm.

[0012] The beneficial effects of the utility model are:

[0013] The utility model provides a convenient cable sheath cutting device, which can quickly cut the cable sheath through the centering and continuous feeding of the wire feeding mechanism and the cutting of the cutting mechanism, greatly improving the cutting speed and efficiency of the cable sheath, reducing the work intensity, and eliminating the risk of the blade hurting the hand. The utility model is small in size and flexible in use, and can be carried by electricians and operated on the spot, which is very convenient.

[0014] The utility model can be adapted to the cable peeling of different specifications and sizes; when in use, the position of the blade is adjusted through the blade holder so that the blade portion only cuts the cable skin without damaging the wire core.

[0015] The utility model adopts a V-shaped fixed clamping end and a movable clamping end to clamp the cable. Compared with the semicircular clamping end, the V-shaped clamping end can be suitable for cables of more sizes. By arranging the wire wheels on the fixed clamping arm and the movable clamping arm, the static friction is converted into dynamic friction, so that the wire feeding process is smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the wire feeding mechanism;

[0018] Figure 3 for Figure 2 A schematic diagram of the partially enlarged structure of part A;

[0019] Figure 4 is a schematic diagram of the structure of the cutting mechanism;

[0020] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure of part B;

[0021] Figure 6 Schematic diagram of the connection structure between the splint and the lower plate.

[0022] In the figure: 1-1, vertical mounting plate, 1-2, upper arc plate, 1-3, lower flat plate, 1-4, clamping plate, 1-5, screw, 1-6, clamping lock nut, 2, fixed clamping end, 2-1, fixed clamping arm, 2-2, fixed connecting rod, 2-3, limit groove, 3, mobile clamping end, 3-1, mobile clamping arm, 3-2, rack, 3-3, gear, 3-4, bearing seat, 3-5, first handle, 4, wire wheel, 5, wire lifting wheel, 5-1, second handle, 6, wire pressing roller, 7, adjustment groove, 8, shaft tube, 9, height locking nut, 10, blade, 11, tool holder, 12, tool holder lock nut, 13, blade lock nut, 14, cable. DETAILED DESCRIPTION

[0023] The utility model will be further described below in conjunction with the accompanying drawings.

[0024] A convenient cable sheath cutting device, such as Figure 1 to Figure 6 As shown, it includes a working support, a wire feeding mechanism and a cutting mechanism; the working support is a semi-open support with a nearly C-shaped cross section, including a vertical mounting plate 1-1, and an upper arc plate 1-2 and a lower flat plate 1-3 connected to the vertical mounting plate 1-1. The wire feeding mechanism and the cutting mechanism are installed on the working support, and the wire feeding mechanism is arranged upstream of the cutting mechanism.

[0025] like Figure 2 , Figure 3As shown, the wire feeding mechanism includes a fixed clamping end 2 and a movable clamping end 3 used in conjunction with each other. The fixed clamping end 2 and the movable clamping end 3 are both V-shaped, and the opening directions of the clamping arms are arranged oppositely, and the openings enclose a cable clamping area. The opening of the fixed clamping end 2 faces the direction of the vertical mounting plate 1-1, and the two fixed clamping arms 2-1 are fixedly connected to the vertical mounting plate 1-1 through a horizontally arranged fixed connecting rod 2-2. Correspondingly, the opening of the movable clamping end 3 deviates from the direction of the vertical mounting plate 1-1, and the movable clamping end 3 realizes left and right translation through the meshing transmission of the gear rack. Specifically, the movable clamping end 3 is fixedly connected to a rack 3-2, and the other end of the rack 3-2 penetrates the vertical mounting plate 1-1 and meshes with the gear 3-3; the gear 3-3 is fixedly connected to the vertical mounting plate 1-1 through the bearing seat 3-4, and the first handle 3-5 is connected to the axle of the gear 3-3. The first handle 3-5 drives the gear 3-3 to rotate, thereby driving the rack 3-2 to translate, so that the movable clamping end 3 can move left and right, so as to effectively clamp cables 14 of different specifications and align them with the cutting mechanism.

[0026] In order to ensure the horizontal movement of the movable clamping end 3, a long strip-shaped limiting groove 2-3 is opened on the fixed clamping arm 2-1 along the length direction. The two movable clamping arms 3-1 of the movable clamping end 3 are respectively correspondingly inserted into the limiting groove 2-3 of the fixed clamping arm 2-1 and translate in the limiting groove 2-3.

[0027] Furthermore, the fixed clamp arm 2-1 and the movable clamp arm 3-1 are both provided with a wire wheel 4 at their roots, and the outer diameter of the wire wheel 4 is larger than the outer diameter of the clamp arm of the fixed clamp end 2 / movable clamp end 3; after the cable 14 is inserted, the wire wheel 4 is the actual contact component, and when the cable 14 passes through, the wire feeding wheel converts static friction into dynamic friction, making the wire feeding process smoother. It should be emphasized that the wire wheel 4 of the fixed clamp arm 2-1 should be set below the limit groove 2-3, and the wire wheel 4 cannot affect the movement of the movable clamp end 3.

[0028] The cutting mechanism, such as Figure 4 , Figure 5 As shown, it includes a blade 10, a wire lifting wheel 5 and two wire pressing rollers 6. The two wire pressing rollers 6 are fixed side by side on the upper part of the vertical mounting plate 1-1, and the wire lifting wheel 5 can be raised and lowered below the wire pressing rollers 6. The wire lifting wheel 5 and the two wire pressing rollers 6 form an isosceles triangle arrangement, and the cable 14 passes between the wire lifting wheel 5 and the wire pressing rollers 6. The position of the wire pressing roller 6 is consistent with the wire feeding height of the wire feeding mechanism, so that the cable 14 can enter the cutting mechanism from the wire feeding mechanism in a horizontal tension state. The wire lifting wheel 5 is provided with a plurality of convex teeth to increase the friction with the cable 14. The wheel axle of the wire lifting wheel 5 passes through the vertical mounting plate 1-1 and is connected to the second handle 5-1. The wire lifting wheel 5 is driven to rotate by the second handle 5-1, and the cable 14 is conveyed forward by the friction of the convex teeth on the wire lifting wheel 5.

[0029] In order to realize the lifting and lowering of the wire lifting wheel 5, a vertical adjustment groove 7 is provided on the vertical mounting plate 1-1 along the height direction, and a through-axle tube 8 which can be flexibly lifted and lowered in the groove is slidably installed in the adjustment groove 7. A limit plate is provided at one end of the through-axle tube 8 close to the wire lifting wheel 5, and an external thread is provided after the other end of the through-axle tube 8 passes through the vertical mounting plate 1-1, and the position of the through-axle tube 8 is locked by a height locking nut 9. The axle of the wire lifting wheel 5 passes through the through-axle tube 8 and is fixedly connected to the second handle 5-1. The lifting and lowering of the through-axle tube 8 in the adjustment groove 7 drives the wire lifting wheel 5 to rise and fall, thereby realizing effective clamping of the cable 14.

[0030] In order to improve the rotation flexibility of the wire lifting wheel 5, miniature bearings are built into both ends of the shaft tube 8, and the axle of the wire lifting wheel 5 and the miniature bearings are clearance-matched.

[0031] A blade 10 for cutting the tension cable skin is arranged above the wire lifting wheel 5, and the blade 10 is fixed on the working support through a blade holder 11. A blade groove is arranged at the bottom of the blade holder 11, and the blade 10 is locked with a blade lock nut 13 after being inserted into the blade groove; the upper end of the blade holder 11 passes through the arc plate 1-2 on the working support and is fixed with a blade holder lock nut 12. The height of the blade 10 can be adjusted through the blade holder 11, so that it is suitable for stripping the cable skin without damaging the wire core.

[0032] In order to facilitate fixation and use, a clamping plate 1-4 is also detachably provided under the working bracket. Specifically, stepped holes are provided at the front and rear ends of the lower plate 1-3, and through holes are provided at the positions of the clamping plates 1-4 corresponding to the stepped holes. Two screws 1-5 penetrate downward through the stepped holes of the lower plate 1-3 and the through holes of the clamping plates 1-4 and are locked with clamping lock nuts 1-6, and the screws 1-5 are in gap with the through holes. When the cutting length of the cable 14 is short, the cable 14 is small in size and light in weight, the clamping plate 1-4 can be removed, and the working bracket can be placed on a horizontal surface for direct operation; when the cutting length of the cable 14 is long, or the cable 14 is large in size and light in weight, the working bracket can be clamped and fixed on one side of the horizontal surface by the clamping plate 1-4, and the operation can be performed after it is stabilized.

[0033] The working process of the utility model is:

[0034] Place the work stand horizontally, insert the cable to be cut into the clamping area of ​​the fixed clamping end and the movable clamping end, between the wire lifting wheel and the wire pressing roller in sequence, so that the starting part of the cable cutting overlaps the upstream of the wire lifting wheel, loosen the height locking nut, adjust the height of the spool tube, clamp the cable between the wire pressing roller and the wire lifting wheel, and then lock it. Shake the first handle to make the movable clamping end move horizontally to achieve cable clamping, and then adjust the blade height so that it can cut the cable sheath without scratching the wire core. Shake the second handle, the wire lifting wheel rotates to realize the forward conveyance of the cable. During the cable conveyance process, the blade cuts the cable sheath, thereby achieving cable stripping.

[0035] The above description is only a preferred embodiment of the present invention. All equivalent changes and modifications made according to the scope of the patent application of the present invention should fall within the scope of the present invention.

Claims

1. A portable cable sheath cutting device, characterized in that: The invention comprises a semi-open work support formed by a vertical mounting plate (1-1), an upper arc plate (1-2) and a lower flat plate (1-3), wherein a wire feeding mechanism for centering and continuous wire feeding and a cutting mechanism for cutting the cable sheath are sequentially installed on the work support; the cutting mechanism comprises two wire pressing rollers (6) and a wire lifting wheel (5), wherein the two wire pressing rollers (6) are fixed side by side on the upper part of the work support, and the positions of the wire pressing rollers (6) are consistent with the wire feeding height of the wire feeding mechanism, and the wire lifting wheel (5) is arranged on the wire pressing rollers in a manner that can be raised and lowered. (6), the wire lifting wheel (5) and the two wire pressing rollers (6) are arranged in an isosceles triangle; the wire lifting wheel (5) is provided with a plurality of convex teeth for increasing friction, and the wheel axle of the wire lifting wheel (5) passes through the vertical mounting plate (1-1) and is connected to a second handle (5-1) for driving; a blade (10) for cutting the skin of the tensioning cable (14) is arranged above the wire lifting wheel (5), and the blade (10) is fixed to the upper arc plate (1-2) of the working bracket through a blade holder (11), and the cutting edge of the blade (10) faces downward.

2. A portable cable sheath cutting device according to claim 1, characterized in that: The vertical mounting plate (1-1) is provided with a vertical adjustment groove (7) along the height direction, and a through-axle tube (8) which can slide in the groove is slidably installed in the adjustment groove (7). The through-axle tube (8) penetrates the vertical mounting plate (1-1) and is locked by a first locking nut; the wheel axle of the wire lifting wheel (5) penetrates the through-axle tube (8) and is fixedly connected to the second handle (5-1).

3. A portable cable sheath cutting device according to claim 2, characterized in that: Miniature bearings are built into the two ends of the shaft-threading tube (8), and the wire-lifting wheel axle and the miniature bearings are clearance-matched.

4. A portable cable sheath cutting device according to claim 1, characterized in that: The wire feeding mechanism comprises a fixed clamping end (2) and a movable clamping end (3) for use together, the fixed clamping end (2) and the movable clamping end (3) are both V-shaped, and the clamping arm openings are arranged in opposite directions, and the openings are enclosed to form a cable accommodating area; the fixed clamping end (2) is fixedly connected to the vertical mounting plate (1-1), and the movable clamping end (3) is translated left and right by meshing of a gear rack.

5. A portable cable sheath cutting device according to claim 4, characterized in that: The movable clamping end (3) is fixedly connected to a rack (3-2), and the other end of the rack (3-2) penetrates the vertical mounting plate (1-1) and meshes with the gear (3-3); the gear (3-3) is fixedly connected to the vertical mounting plate (1-1) via a bearing seat (3-4), and a first handle (3-5) is connected to the wheel axle of the gear (3-3).

6. A portable cable sheath cutting device according to claim 4, characterized in that: A long strip-shaped limiting groove (2-3) is provided on the fixed clamping arm (2-1) of the fixed clamping end (2) along the length direction, and two movable clamping arms (3-1) of the movable clamping end (3) are respectively correspondingly inserted into the limiting grooves (2-3) of the fixed clamping arm (2-1) and translate in the limiting grooves (2-3).

7. A portable cable sheath cutting device according to claim 6, characterized in that: The roots of the fixed clamp arm (2-1) and the movable clamp arm (3-1) are both provided with a guide wheel (4), and the outer diameter of the guide wheel (4) is larger than the outer diameters of the fixed clamp arm (2-1) and the movable clamp arm (3-1).

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