CN115256178A

CN115256178A - Cable cutting equipment

Info

Publication number: CN115256178A
Application number: CN202211211821.0A
Authority: CN
Inventors: 成骁; 陈成; 陆丹华; 刘小虎; 景红艳; 姜建梅; 王新峰
Original assignee: Jiangsu Baoyi Communication Technology Co ltd
Current assignee: Jiangsu Baoyi Communication Technology Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-11-01
Anticipated expiration: 2042-09-30
Also published as: CN115256178B

Abstract

The invention relates to the field of cable installation, in particular to a cable cutting device which is used for cutting a cable and comprises a fixing ring and a cutting and polishing mechanism, wherein the fixing ring is fixedly sleeved outside the cable; the cutting and polishing mechanism comprises a feeding piece, a rotating frame, an adjusting assembly and a cutter assembly, wherein the cutter assembly comprises a cutter bar and a cutter disc, the cutter disc is arranged on the cutter bar, and the axis of the cutter disc is parallel to the axis of the cable; the feeding piece controls the feeding amount of the cable cut by the cutter head; the rotating frame drives the cutter to rotate around the cable, so that the cutter head cuts the cable along the circumferential direction; when the cutter head cuts to the protective jacket layer, the filler and the insulating layer, the adjusting assembly allows the cutter head to rotate around the axis of the cutter head, so that the cutter head cuts in a rolling manner under the resistance of the cable; when the cutter disc cuts the conductor, the cutter disc is limited to rotate around the axis of the cutter disc, so that the cutter disc and the cable only slide relatively, and the cutter disc cuts in a sliding mode; and then make the cutting plane of cable more level and smooth.

Description

Cable cutting equipment

Technical Field

The invention relates to the field of cable installation, in particular to a cable cutting device.

Background

In the process of processing and using the cable, the cable is often required to be cut, and when the cable is cut by the existing cutting equipment, a mode of cutting off the cable with a smaller diameter by a knife is usually adopted, so that the deformation of a cut surface is easily caused; for cables with larger diameters, a circular cutting mode is adopted; because the cable is provided with the metal conductor with higher hardness and the non-metal parts such as rubber with lower hardness, the cutting machine tool often cuts the cable by single feeding amount and cutting force during circular cutting, and when the cutting machine tool encounters the non-metal parts such as rubber with lower hardness, the feeding amount of the cutter is suddenly increased under the same cutting force, so that the cutting position of the metal conductor is deformed during cutting of the metal conductor, the cutting surface is deformed, and subsequent use is influenced.

Disclosure of Invention

The inventor finds that in the cutting process, the cutting action force and the action effect on the workpiece are different when the cutter disc cuts the workpiece in a rolling mode and cuts the workpiece in a sliding mode, the cutting action force and the action effect on the workpiece are smaller when the cutter disc cuts the workpiece in a rolling mode through rotation, the cutting action force and the action effect on the workpiece are larger when the cutter disc fixes and cuts the workpiece in a relative sliding mode, different positions of the cable are cut by using the difference of the two modes, and the cutting surface of the cable can be more flat and smooth.

The invention provides cable cutting equipment, which aims to solve the problem that when the existing cutting equipment is used for cutting a cable, a cutting surface is easy to deform due to the fact that the cutting process is unstable.

The cable cutting equipment adopts the following technical scheme:

a cable cutting device is used for cutting a cable, wherein the cable comprises a plurality of protective jacket layers, fillers, insulating layers and conductors, the insulating layers wrap the conductors, the protective jacket layers wrap the conductors, and the fillers are arranged between the protective jacket layers and the insulating layers; a cable cutting device comprises a fixing ring and a cutting and polishing mechanism, wherein the fixing ring is sleeved outside a cable and is fixed with a protective sleeve layer of the cable; the cutting and polishing mechanism comprises a feeding piece, a rotating frame, an adjusting assembly and a cutter assembly, wherein the cutter assembly comprises a cutter bar and a cutter head, the cutter bar is radially and slidably mounted on the rotating frame along a cable, the cutter head is mounted at one end of the cutter bar close to the cable, and the axis of the cutter head is parallel to the axis of the cable; the feeding piece controls the cutter bar to move along the radial direction of the cable, so that the feed amount of the cutter disc for cutting the cable is controlled; the rotating frame can be rotatably arranged on the fixing ring around the axis of the cable, and the rotating frame drives the cutter head to rotate around the axis of the cable and cut the cable when the cutter assembly rotates around the cable; the adjustment assembly allows the cutter disc to rotate about its axis when the cutter disc cuts to the protective jacket layer, the filler and the insulating layer, and limits the cutter disc from rotating about its axis when the cutter disc cuts to the conductor.

Furthermore, a mounting groove is formed in the cutter bar, a first avoidance groove and a second avoidance groove which are mutually communicated are formed in the lower side wall of the mounting groove, the first avoidance groove is positioned on one side, close to the cable, of the second avoidance groove, and the width of the first avoidance groove is larger than that of the second avoidance groove; the adjusting assembly comprises an elastic piece, a guide block, a rotating block and a limiting block, wherein the guide block and the elastic piece are both arranged in the mounting groove, and the guide block can slide along the radial direction of the cable and is abutted against the side wall of the mounting groove, close to one side of the cable, under the action of the elastic piece; the rotating block is rotatably arranged on the guide block around a vertical axis and is fixedly connected with the limiting block; the upper end of the limiting block is fixedly connected with the rotating block, and the lower end of the limiting block is fixedly connected with the circle center of the cutter head; when the limiting block is positioned in the second avoidance groove, the second avoidance groove limits the limiting block to rotate freely, and then the cutter is limited to rotate around the axis of the cutter; in an initial state, the limiting block is located in the first avoidance groove, and when the cutter disc cuts the protective jacket layer, the filler and the insulating layer, the limiting block is always located in the first avoidance groove under the action of the elastic piece; when the cutter head acts on the conductor, the guide block is driven by the limiting block and the rotating block to move in the direction away from the cable to extrude the elastic part under the extrusion of the conductor, and the limiting block is enabled to move from the first avoidance groove to the second avoidance groove.

Furthermore, the fixing ring is formed by hinging and enclosing two semicircular rings, one sides of the two semicircular rings are hinged, and the other sides of the two semicircular rings are fixedly connected through a bolt component after being sleeved on the cable.

Furthermore, the end faces of the two semicircular rings are provided with sliding rails coaxial with the cable, and the rotating frame is slidably mounted on the sliding rails and rotates around the cable along the sliding rails.

Further, be provided with a plurality of gyro wheels on the rotating turret, the gyro wheel is located deviating from blade disc one side and slidable mounting in the slide rail of cable.

Furthermore, both side surfaces of the cutter head are sand surfaces, and the sand surfaces are used for polishing cutting surfaces of the cable in the cable cutting process.

Furthermore, the feeding piece is rotatably arranged on the rotating frame, and the rotating frame limits the feeding piece to move along the radial direction of the cable; the feeding piece is coaxial with the cutter bar and is in threaded fit with the cutter bar, and the rotating frame limits the cutter bar to rotate around the axis of the rotating frame; the cutter bar is controlled to move along the radial direction of the cable by rotating the feeding piece.

The invention has the beneficial effects that: according to the cable cutting equipment, the rotating frame drives the cutter to rotate around the cable, so that the cutter head cuts the cable along the circumferential direction; the adjusting assembly allows the cutter head to rotate around the axis of the adjusting assembly when the cutter head cuts the protective sleeve layer, the filler and the insulating layer, so that the cutter head cuts in a rolling mode under the resistance of the cable, and the cutting acting force and the acting effect on the protective sleeve layer, the filler and the insulating layer are small; when the cutter disc cuts the conductor, the cutter disc is limited to rotate around the axis of the cutter disc, so that the cutter disc and the cable only slide relatively, the cutter disc cuts in a sliding mode, and the cutting acting force and the acting effect on the conductor are large; the phenomenon that the feeding amount of the cutter to the filler is suddenly increased under the same cutting force, so that the cutting position of the metal conductor is deformed due to the fact that the feeding amount is increased when the metal conductor is cut, and the cutting surface of the cable is smoother and smoother is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the description of the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of an embodiment of a cable cutting device according to the present invention;

FIG. 2 is a schematic cross-sectional view of a cable in an embodiment of a cable cutting apparatus of the present invention;

FIG. 3 is a schematic view of a retainer ring of an embodiment of a cable cutting device according to the present invention;

FIG. 4 is a schematic view of a cutting and grinding mechanism in an embodiment of a cable cutting apparatus of the present invention;

FIG. 5 is a schematic sectional view of a cutting and grinding mechanism in an embodiment of a cable cutting device according to the present invention;

FIG. 6 is an enlarged view of the point A in FIG. 5;

FIG. 7 is a schematic view of a tool bar of an embodiment of the cable cutting apparatus of the present invention;

FIG. 8 is a schematic view in partial cross-section of the end of a tool bar in an embodiment of a cable cutting apparatus of the present invention;

FIG. 9 is a schematic view of the construction of the resilient member and guide block in an embodiment of a cable cutting apparatus according to the present invention;

FIG. 10 is a schematic structural view of a rotating block, a limiting block and a cutter head in an embodiment of the cable cutting apparatus of the present invention;

in the figure: 100. a cable; 110. a protective jacket layer; 120. a filler; 130. an insulating layer; 140. a conductor; 200. a fixing ring; 210. a semicircular ring; 211. a slide rail; 300. a cutting and polishing mechanism; 310. a feeding member; 311. a circular truncated cone; 320. a rotating frame; 321. a roller; 330. an adjustment assembly; 331. an elastic member; 332. a guide block; 333. rotating the block; 334. a limiting block; 335. connecting columns; 340. a cutter assembly; 341. a cutter bar; 342. a cutter head; 343. mounting grooves; 344. a first avoidance slot; 345. and a second avoidance groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An embodiment of a cable cutting apparatus of the present invention, shown in fig. 1 to 10, for cutting a cable 100, includes a fixing ring 200 and a cutting grinder 300,

the cable 100 comprises a protection jacket layer 110, a filler 120, an insulation layer 130 and a plurality of conductors 140, wherein the insulation layer 130 wraps the conductors 140, the filler 120 is arranged between the protection jacket layer 110 and the insulation layer 130;

the fixing ring 200 is sleeved outside the cable 100 and fixed with the protective sheath 110 of the cable 100;

the cutting and grinding mechanism 300 includes a feed member 310, a turret 320, an adjustment assembly 330 and a cutter assembly 340,

the cutter assembly 340 comprises a cutter bar 341 and a cutter head 342, the cutter bar 341 is arranged on the rotating frame 320 in a sliding manner along the radial direction of the cable 100, the cutter head 342 is arranged at one end of the cutter bar 341 close to the cable 100, and the axis of the cutter head 342 is parallel to the axis of the cable 100; the feeding member 310 controls the cutter bar 341 to move along the cable 100 in the radial direction, thereby controlling the feed amount of the cutter head 342 for cutting the cable 100;

the rotating frame 320 is rotatably mounted on the fixing ring 200 around the axis of the cable 100, and when the rotating frame 320 drives the cutter assembly 340 to rotate around the cable 100, the cutter disc 342 rotates around the axis of the cable 100 and cuts the cable 100;

when the cutter disc 342 cuts the protective sleeve layer 110, the filler 120 and the insulating layer 130, the adjusting assembly 330 allows the cutter disc 342 to rotate around the axis of the cutter disc 342, so that the cutter disc 342 cuts in a rolling manner under the resistance of the cable 100, and the cutting action force and the action effect on the protective sleeve layer 110, the filler 120 and the insulating layer 130 are small; when the cutter head 342 cuts the conductor 140, the cutter head 342 is limited to rotate around the axis of the cutter head 342, so that the cutter head 342 and the cable 100 only slide relatively, the cutter head 342 cuts in a sliding mode, and the cutting acting force and the acting effect on the conductor 140 are large; thereby making the cutting surface of the cable 100 smoother and smoother.

In this embodiment, a mounting groove 343 is disposed in the cutter bar 341, a first avoidance groove 344 and a second avoidance groove 345 that are mutually communicated are disposed on a lower side wall of the mounting groove 343, the first avoidance groove 344 is located on one side of the second avoidance groove 345 close to the cable 100, and a width of the first avoidance groove 344 is greater than a width of the second avoidance groove 345; the adjusting assembly 330 includes an elastic member 331, a guide block 332, a rotating block 333 and a limiting block 334, the guide block 332 and the elastic member 331 are both mounted in the mounting groove 343, and the guide block 332 can slide along the radial direction of the cable 100 and abut against the side wall of the mounting groove 343 near the cable 100 side under the action of the elastic member 331; the rotating block 333 is rotatably arranged on the guide block 332 around a vertical axis, and the rotating block 333 is fixedly connected with the limiting block 334 through a connecting column 335; the upper end of the limiting block 334 is fixedly connected with the rotating block 333, and the lower end of the limiting block 334 is fixedly connected with the circle center of the cutter head 342; and when the limiting block 334 is located in the first avoiding groove 344, the limiting block 334 can rotate in the first avoiding groove 344, so that the cutter head 342 is allowed to rotate around the axis of the cutter head, and when the limiting block 334 is located in the second avoiding groove 345, the second avoiding groove 345 limits the limiting block 334 to rotate freely, so that the cutter head 342 is limited to rotate around the axis of the cutter head. Specifically, the four side surfaces of the limiting block 334 are respectively two first planes and two first arc surfaces, the two planes are opposite, the two first arc surfaces are opposite, and the distance between the two first arc surfaces is greater than the distance between the two first planes; the first avoidance groove 344 and the second avoidance groove 345 are symmetrical about the first axis, the side wall of the first avoidance groove 344 is a second arc surface, the diameter of the second arc surface is greater than or equal to the distance between the two first arc surfaces, and the width of the first avoidance groove 344 along the first axis direction is greater than the distance between the two first arc surfaces, so that the limiting block 334 can freely rotate in the first avoidance groove 344 when positioned in the first avoidance groove 344; two side surfaces of the second avoidance groove 345, which are parallel to the first axis, are second straight surfaces, the distance between the two second straight surfaces is greater than or equal to the distance between the two first straight surfaces and smaller than the distance between the two first arc surfaces, when the limiting block 334 is positioned in the second avoidance groove 345, the two first straight surfaces are opposite to the two second straight surfaces, and the two second straight surfaces limit the limiting block 334 to rotate freely; wherein the first axis extends in a radial direction of the cable 100. In an initial state, the limiting block 334 is located in the first avoiding groove 344, and when the cutter head 342 cuts the protective sheath layer 110, the filler 120 and the insulating layer 130, the limiting block 334 is located in the first avoiding groove 344 all the time under the action of the elastic member 331; when the cutter 342 acts on the conductor 140, the guide block 332 is driven by the limiting block 334 and the rotating block 333 to move the extrusion elastic member 331 in a direction away from the cable 100 under the extrusion of the conductor 140, and the limiting block 334 moves from the first avoiding groove 344 to the second avoiding groove 345.

In this embodiment, the fixing ring 200 is formed by two semicircular rings 210 hinged together, one sides of the two semicircular rings 210 are hinged, and the other sides of the two semicircular rings 210 are fixedly connected by a bolt assembly after being sleeved on the cable 100.

In this embodiment, the end surfaces of the two semicircular rings 210 are both provided with a sliding rail 211 coaxial with the cable 100, and the rotating frame 320 is slidably mounted on the sliding rail 211 and rotates around the cable 100 along the sliding rail 211.

In this embodiment, the rotating frame 320 is provided with a plurality of rollers 321, and the rollers 321 are located on a side of the cable 100 away from the cutter head 342 and slidably mounted on the sliding rail 211.

In this embodiment, both side surfaces of the cutter head 342 are sand surfaces for polishing the cut surface of the cable 100 in the process of cutting the cable 100.

In the present embodiment, the feeding member 310 is rotatably mounted to the rotating frame 320, and the rotating frame 320 limits the feeding member 310 from moving along the radial direction of the cable 100; specifically, the end of the feeding member 310 is provided with a circular truncated cone 311, and the circular truncated cone 311 is located outside the rotating frame 320 and is rotationally connected with the rotating frame 320, so as to prevent the feeding member 310 from moving along the radial direction of the cable 100. The feeding piece 310 is coaxial and in threaded fit with the cutter rod 341, and the rotating frame 320 limits the cutter rod 341 to rotate around the axis of the cutter rod 341; specifically, part of the rod section of the cutter bar 341 is in a square structure, and the rod section of the square structure of the cutter bar 341 is matched with the rotating rack 320, so that the rotating rack 320 limits the cutter bar 341 to rotate around the axis thereof; the movement of the tool bar 341 in the radial direction of the cable 100 is controlled by rotating the feeding member 310.

When the cable cutting equipment is used, the fixing ring 200 is fixedly sleeved on the cable 100 to be cut; the feeding member 310 is rotated to move the cutter bar 341 towards the direction close to the cable 100, so that the cutter disc 342 abuts against the cable 100 and is inserted into the protective sheath layer 110 of the cable 100, at this time, the reaction force of the protective sheath layer 110 of the cable 100 on the cutter disc 342 is not enough to overcome the elasticity of the elastic member 331, so that the limiting block 334 can freely rotate in the first avoiding groove 344, and further, when the rotating frame 320 slides along the sliding rail 211 and revolves around the axis of the cable 100, the cutter disc 342 can rotate around the axis of the cutter disc 342, so that the acting force of the cutter disc 342 on the protective sheath layer 110 is relatively small; when the rotating frame 320 rotates, the feeding member 310 is rotated to move the cutter bar 341 in a direction approaching the cable 100, thereby increasing the feeding amount of the cutter head 342. The cutter head 342 is fed to contact with the conductor 140, and the cutter head 342 is sequentially and alternately contacted with the conductor 140 and the filler 120 while revolving around the axis of the cable 100 along with the turret 320; because the hardness of the conductor 140 is higher than that of the filler 120, when the conductor 140 is cut, the cutter head 342 moves away from the conductor 140 under the reaction force of the conductor 140, and drives the limiting block 334 to move from the first avoiding groove 344 to the second avoiding groove 345, and meanwhile, the elastic piece 331 is extruded, the second avoiding groove 345 limits the rotation of the limiting block 334 so as to limit the rotation of the cutter head 342 around the axis of the cutter head 342, and therefore, the action force of the cutter head 342 on cutting of the conductor 140 is increased; when the rotating frame 320 rotates to the cutter disc 342 to cut the filler 120, the cutter disc 342 moves from the second avoiding groove 345 to the first avoiding groove 344 under the action of the elastic member 331, and the first avoiding groove 344 allows the limiting block 334 to rotate and further allows the cutter disc 342 to rotate around the axis of the cutter disc 342, so that the acting force of the cutter disc 342 on cutting of the filler 120 is reduced; because the cutting acting force of the cutter disc 342 on the workpiece when rotating around the cutter disc 342 is smaller than the cutting acting force of the cutter disc 342 on the workpiece when being limited to rotate around the cutter disc, the cutting acting force of the cutter disc 342 on the workpiece is increased by limiting the cutter disc 342 to rotate around the axis of the cutter disc when cutting the conductor 140 with higher hardness, and the cutting acting force of the cutter disc 342 on the filler 120 is reduced by allowing the cutter disc 342 to rotate around the axis of the cutter disc 342 when cutting the filler 120 with lower hardness, the phenomenon that the feeding amount of the cutter disc 342 on the filler 120 is larger due to the larger acting force of the cutter disc 342 on the filler 120 when cutting the filler 120 is avoided, and further the feeding depths are different during cutting, so that the cutting surface of the cable 100 is uneven.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A cable cutting device is used for cutting a cable, wherein the cable comprises a plurality of protective jacket layers, fillers, insulating layers and conductors, the insulating layers wrap the conductors, the protective jacket layers wrap the conductors, and the fillers are arranged between the protective jacket layers and the insulating layers; the method is characterized in that: the cutting and polishing device comprises a fixing ring and a cutting and polishing mechanism, wherein the fixing ring is sleeved outside a cable and is fixed with a protective sleeve layer of the cable; the cutting and polishing mechanism comprises a feeding piece, a rotating frame, an adjusting assembly and a cutter assembly, wherein the cutter assembly comprises a cutter bar and a cutter head, the cutter bar is arranged on the rotating frame in a sliding manner along the radial direction of the cable, the cutter head is arranged at one end of the cutter bar close to the cable, and the axis of the cutter head is parallel to the axis of the cable; the feeding piece controls the cutter bar to move along the radial direction of the cable, so that the feed amount of the cutter disc for cutting the cable is controlled; the rotating frame can be rotatably arranged on the fixing ring around the axis of the cable, and the rotating frame drives the cutter head to rotate around the axis of the cable and cut the cable when the cutter assembly rotates around the cable; the adjustment assembly allows the cutter disc to rotate about its axis when the cutter disc cuts to the protective jacket layer, the filler and the insulating layer, and limits the cutter disc from rotating about its axis when the cutter disc cuts to the conductor.

2. A cable cutting device according to claim 1, characterized in that: the cutter bar is internally provided with a mounting groove, the lower side wall of the mounting groove is provided with a first avoidance groove and a second avoidance groove which are mutually communicated, the first avoidance groove is positioned on one side, close to the cable, of the second avoidance groove, and the width of the first avoidance groove is larger than that of the second avoidance groove; the adjusting assembly comprises an elastic piece, a guide block, a rotating block and a limiting block, wherein the guide block and the elastic piece are both arranged in the mounting groove, and the guide block can slide along the radial direction of the cable and is abutted against the side wall of the mounting groove, close to one side of the cable, under the action of the elastic piece; the rotating block is rotatably arranged on the guide block around a vertical axis and is fixedly connected with the limiting block; the upper end of the limiting block is fixedly connected with the rotating block, and the lower end of the limiting block is fixedly connected with the circle center of the cutter head; when the limiting block is positioned in the second avoidance groove, the second avoidance groove limits the limiting block to rotate freely, and then the cutter is limited to rotate around the axis of the cutter; in an initial state, the limiting block is located in the first avoidance groove, and when the cutter disc cuts the protective jacket layer, the filler and the insulating layer, the limiting block is always located in the first avoidance groove under the action of the elastic piece; when the cutter head acts on the conductor, the guide block is driven by the limiting block and the rotating block to move in the direction away from the cable to extrude the elastic part under the extrusion of the conductor, and the limiting block moves from the first avoiding groove to the second avoiding groove.

3. A cable cutting device according to claim 1, characterized in that: the fixed ring is formed by hinging and enclosing two semicircular rings, one sides of the two semicircular rings are hinged, and the other sides of the two semicircular rings are fixedly connected through a bolt component after being sleeved on the cable.

4. A cable cutting device according to claim 3, characterized in that: the end faces of the two semicircular rings are provided with sliding rails coaxial with the cable, and the rotating frame is slidably mounted on the sliding rails and rotates around the cable along the sliding rails.

5. A cable cutting device according to claim 4, characterized in that: be provided with a plurality of gyro wheels on the rotating turret, the gyro wheel is located deviating from blade disc one side and slidable mounting in the slide rail of cable.

6. A cable cutting device according to claim 1, characterized in that: and two side surfaces of the cutter head are sand surfaces and are used for polishing cutting surfaces of the cable in the process of cutting the cable.

7. A cable cutting device according to claim 1, characterized in that: the feeding piece is rotatably arranged on the rotating frame, and the rotating frame limits the feeding piece to move along the radial direction of the cable; the feeding piece is coaxial with the cutter bar and is in threaded fit with the cutter bar, and the rotating frame limits the cutter bar to rotate around the axis of the rotating frame; the cutter bar is controlled to move along the radial direction of the cable by rotating the feeding piece.