A multiple wire end wrapper

Abstract

The present invention discloses a multiple wire end winding device, including a rotor, a shell and a clamping device, wherein a cylinder is provided in the middle of the rotor, a chip storage chamber is provided in the cylinder, a plurality of longitudinal accommodating grooves for placing wires are provided on the inner wall of the chip storage chamber, one end of the opening of the chip storage chamber of the cylinder is screwed with the end cover, and the other end is provided with a rotating shaft, a center hole and a positioning hole connected with the longitudinal groove are provided on the end cover, the center hole is connected with the chip storage chamber, the outer end of the positioning hole is conical, the conical surface and the end surface of the end cover form a knife edge for stripping the insulation layer of the wire, the shell is slidable on the rotor, and the clamping device is arranged on the outer side of the end cover, and is flexibly matched with the guide hole on the shell wall through the support rod. By adopting the above structure, the clamping device clamps the inner side of the end of the wire to be wound and does not move, and the rotating rotor drives the end of the wire to be wound to rotate, and after the insulation layer is stripped, the multiple end wire cores are automatically wound into a rope shape.

Description

Technical Field

[0001] The invention relates to an electrician's tool, in particular to a multiple electric wire end wrapper. Background Art

[0002] In the process of house decoration construction or wire arrangement, wire joining is a very common and necessary electrical operation step. When doing wire joining, the usual practice is to first strip the insulation layer of the wire ends, then use one wire as the center conductor and wrap the other wires around the center conductor. This operation method is not only inefficient, but also the tightness of the wire winding is poor.

[0003] At present, in order to solve the above problems, a Chinese patent with announcement number CN207353630U discloses a portable BV line automatic stripping and wiring device, which includes a wiring device rotor. The wiring device rotor is a three-section integrated structure, which includes, from top to bottom, a regular quadrangular prism-shaped rotor lower section, a cylindrical rotor middle section and a regular polygonal prism-shaped rotor upper section. The diameter of the circumscribed circle of the cross section of the rotor upper section is smaller than the diameter of the cross section circle of the rotor middle section, and the diameter of the cross section circle of the rotor middle section is smaller than the side length of the square of the cross section of the rotor lower section. A rotor center hole passing through the upper and lower sections is provided in the center of the wiring device rotor. A wire pressing ring is fixed on the outer wall of the lower end of the rotor lower section. Axial wire threading grooves are respectively provided in the middle parts of the four outer side walls of the rotor lower section. A "cross"-shaped groove with the axis of the rotor center hole as the center is provided at the bottom end of the rotor lower section, and the four side openings of the "cross"-shaped groove are respectively connected to the four wire threading grooves in a one-to-one correspondence. A radial rotor through-hole is provided at the top of the rotor upper section.

[0004] This portable BV wire automatic stripping and wiring device has a simple structure, but in actual use, the wires are inserted into the wire threading slot and passed out of the wire threading slot for a long length, and multiple wires are spread out in a divergent shape; as the wire threading device rotor rotates, multiple wires rotate along the axis of the wire threading device, and the wire insulation layer is stripped from the wire and scattered on the ground. Workers need to clean the wire insulation layer later, and the operation is cumbersome; before the rotor rotates, the wires need to be clamped with tools such as wire cutters, and the wires are easily broken due to uneven manual force; the rotor is exposed to the outside and has no outer casing protection, which can easily hurt people when rotating. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a wire end wrapper, which provides a chip storage chamber inside a rotor and places the insulation layer of the wire in the chip storage chamber to facilitate cleaning; a clamping device that is stationary relative to the outer shell is provided, the force applied to the wires is uniform, the wires are not easily broken, and the device is easy to use; and an outer shell is provided outside the rotor to provide safety protection.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: comprising a rotor, an outer shell and a clamping device, a cylinder is provided in the middle of the rotor, a chip storage chamber is provided in the cylinder, a longitudinal accommodating groove for placing the wire is provided on the inner wall of the chip storage chamber, one end of the opening of the chip storage chamber of the cylinder is screwed with the end cover, and the other end is fixed with a rotating shaft, a central through hole and a wire positioning hole connected with the longitudinal groove are provided on the end cover, and the outer diameter is slightly smaller than the outer diameter of the cylinder, the central through hole is connected with the chip storage chamber, the outer end of the wire positioning hole is conical, and the conical surface and the end face of the end cover form a knife edge for stripping the insulation layer of the wire, the outer shell is looped on the rotor, and the clamping device is arranged on the outer side of the end cover. With the above-mentioned further arrangement, the number of the wire positioning holes of the end cover is the same as that of the longitudinal grooves, which can be three, four or more, and six are preferably used in the present invention, and are evenly distributed on the end face of the end cover.

[0007] The beneficial effects of the present invention are as follows: by adopting the above-mentioned structure, the clamping device clamps the inner sides of the ends of several wound electric wires and keeps them immobile, the ends of each electric wire respectively pass through a wire positioning hole on the end cover and are placed in a longitudinal accommodating groove in the chip storage chamber, the electric drill clamps the end of the rotating shaft, and the outer shell is grasped by hand. The drive of the electric drill drives the rotor to rotate in the outer shell, and then drives the end cover to rotate. The knife edge on the end cover peels off the insulation layer of the electric wire and stores it in the chip storage chamber, and the several end wire cores outside the end cover are twisted into a rope shape and automatically push the rotor inward, thereby achieving the purpose of winding the ends of several electric wires together, and the several electric wires inside the cylinder generate centrifugal force when the rotor rotates, and each of them is tightly attached to the longitudinal accommodating groove. Therefore, the structure is very reasonable, and the stripped insulation layer is automatically collected, and the wires are clamped evenly and are not easily broken; when the rotor rotates, the cores of the several terminal wires inside the cylinder 11 will not interfere with each other, and the safety and reliability are good; when the blade on the end cover is blunted, only the end cover needs to be replaced, thereby effectively reducing the cost of use; the number of wire positioning holes and longitudinal grooves of the end cover is preferably six, which can be used for the winding of 2 to 6 wire ends, and has good versatility.

[0008] The present invention is further configured as follows: a collar is provided at one end of the rotating shaft to abut against the end face of the cylinder and is connected by screws, a clamping block is provided at the end away from the collar, the outer diameter of the collar is slightly smaller than the outer diameter of the cylinder, and a boss is provided at the end opposite to the clamping block, and the clamping block is a cylinder cut into a polygon and retaining a circular arc segment of appropriate length.

[0009] By adopting the above structure, the rotating shaft and the cylinder can be processed separately, which simplifies the process and reduces the cost; the boss at the end of the shaft ring is matched with the inner hole of the cylinder for positioning, and the outer diameter of the shaft ring is slightly smaller than the outer diameter of the cylinder, which does not hinder the matching requirements between the cylinder and the outer shell, thereby improving the rotation accuracy; the clamping block is a cylinder composed of polygons and arc segments, so that it can be clamped by an electric drill and an auxiliary clamp.

[0010] The present invention is further configured as follows: the shell is provided with stepped large through holes and small through holes with different inner diameters, the inner diameter of the large through hole is flexibly matched with the outer diameter of the rotor cylinder, and the length of the large through hole is greater than the sum of the lengths of the end cover, the cylinder body and the shaft ring after assembly and the length of the wire end winding, the diameter of the small through hole is smaller than the diameter of the shaft ring and greater than the diameter of the shaft, and a guide hole is provided on the wall of the shell in the axial direction.

[0011] With the above structure, since the rotor can be rotated and moved in the shell, the small through hole step limit prevents the rotor from moving out of the shell when rotating, thereby ensuring the effective length of the wire end winding and improving safety; the guide hole on the shell wall allows the clamping device to move axially relative to the shell to adjust the position of the clamped wire.

[0012] The present invention is further configured as follows: the clamping device includes a support rod and a clamping assembly, one end of the support rod is provided with an external thread, and the inner side of the external thread is provided with a shoulder, the clamping assembly includes a clamp seat, a clamp cover and a positioning and clamping mechanism for the clamp cover and the clamp seat, the clamp cover is hinged to the clamp seat through a connecting sleeve, a first groove is provided on the clamp seat, a second groove is provided on the clamp cover, and the first groove and the second groove form a clamping long hole for clamping the wire.

[0013] The above structure is simple and easy to use. The clamp cover can rotate around the axis of the connecting sleeve to realize the open or closed state. When closed, the clamping long hole can clamp multiple wires side by side and is suitable for wires of different diameters with strong adaptability; when opened, the wires with the ends wound around can be easily taken out.

[0014] The present invention is further configured as follows: the positioning and clamping mechanism includes a support ear, a lifting ear, a handle and a U-shaped buckle, the support ear is fixed on the clamp seat, the lifting ear is fixed on the clamp cover, the handle is hinged to the support ear, and a spindle is provided at a certain distance from the center of the hinge, radial through holes are provided at both ends of the spindle, and the two ends of the externally threaded opening of the U-shaped buckle respectively pass through the radial through holes of the spindle and are fastened with nuts.

[0015] With the above structure, the electric wire can be clamped and released by only pulling or pushing the handle, which is convenient to use and has high working efficiency.

[0016] The present invention is further configured as follows: a limiting groove is provided on a side of the lifting ear facing away from the supporting ear, and the U-shaped buckle contacts the inner wall of the limiting groove when clamping the wire.

[0017] With the above structure, when the handle is pulled to clamp the wire, the U-shaped draw buckle is prevented from being separated from the lifting ear.

[0018] The present invention is further configured as follows: the clamp seat sleeve is arranged at one end of the support rod with an external thread, one end face of the clamp seat is in contact with the shaft shoulder for positioning, a nut is provided on the outer side of the other end face and is screwed and fixed with the external thread of the support rod, and the end of the support rod opposite to the external thread is a smooth rod that is loosely sleeved in the guide hole of the outer shell.

[0019] With the above structure, the clamping assembly is positioned by the shaft shoulder and fixed by screw connection, which is simple in structure and easy to install. One end of the bare rod of the support rod can move axially in the guide hole, which is conducive to adjusting the position of the clamping assembly to adapt to wires of different thicknesses. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional diagram of the appearance structure of a specific embodiment of the present invention;

[0021] Figure 2 It is an assembly front view of a specific embodiment of the present invention;

[0022] Figure 3 It is an assembly left view of a specific embodiment of the present invention;

[0023] Figure 4 This is a diagram of the clamping assembly in an open state in a specific embodiment of the present invention;

[0024] Figure 5 This is a structural diagram of the end cover of the rotor in a specific embodiment of the present invention;

[0025] Figure 6 It is a cylinder structure diagram of a rotor in a specific embodiment of the present invention;

[0026] Figure 7 It is a structural diagram of the rotating shaft of the rotor in a specific embodiment of the present invention;

[0027] Figure 8 It is a structural diagram of the shell in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0028] like Figure 1 , 2, 3, 4, 5, 6, 7, and 8, comprising a rotor 1, a housing 2, and a clamping device 3, wherein a barrel 11 is provided in the middle of the rotor 1, a chip storage chamber 111 is provided in the barrel 11, a longitudinal accommodating groove 112 for placing the wire is provided on the inner wall of the chip storage chamber 111, one end of the opening of the chip storage chamber 111 of the barrel 11 is screwed with an end cover 13, and a rotating shaft 12 is fixedly provided at the other end, a central through hole 131 and a wire positioning hole 132 communicating with the longitudinal groove 112 are provided on the end cover 13, and the outer diameter of the end cover 13 is slightly smaller than the outer diameter of the barrel 11, The central through hole 131 is connected to the chip storage chamber 111, the outer end of the wire positioning hole 132 is a conical surface 133, and the conical surface 133 and the end surface 134 of the end cover 13 form a knife edge 135 for stripping the insulation layer of the wire. The shell 2 is looped on the rotor 1, and the clamping device 3 is arranged on the outside of the end cover 13. With the above further arrangement, the number of the wire positioning holes 132 of the end cover 13 is the same as that of the longitudinal grooves 112, which can be three, four or more. Six are preferred in the present invention, and are evenly distributed on the end surface 134 of the end cover 13. With the above structure, the clamping device 3 clamps the inner sides of the ends of the several wires to be wound and keeps them stationary. The ends of each wire pass through a wire positioning hole 132 on the end cover 13 and are placed in a longitudinal accommodating groove 112 in the chip storage chamber 111. The electric drill clamps the end of the rotating shaft 12, and the outer shell 2 is grasped by hand. The drive of the electric drill drives the rotor 1 to rotate in the outer shell 2, and then drives the end cover 13 to rotate. The blade 135 on the end cover 13 peels off the insulation layer of the wire and stores it in the chip storage chamber 111. The several end wire cores outside the end cover 13 are twisted into a rope shape and automatically push the rotor 1 inward, thereby achieving the purpose of winding the ends of the several wires together, and the several wires inside the cylinder 11 generate centrifugal force when the rotor 1 rotates, and each of them is tightly attached to the longitudinal accommodating groove 112. Therefore, the structure is very reasonable, and the stripped insulation layer is automatically collected, and the wires are clamped evenly and are not easily broken; when the rotor rotates, the cores of the several terminal wires inside the cylinder 11 will not interfere with each other, and the safety and reliability are good; when the blade 135 on the end cover 13 is passivated, only the end cover 13 needs to be replaced, thereby effectively reducing the cost of use; the number of the wire positioning holes 132 and the longitudinal grooves 112 of the end cover 13 is preferably six, which can be used for the winding of 2 to 6 wire ends, and has good versatility.

[0029] The present invention is further configured as follows: a collar 122 is provided at one end of the rotating shaft 12 to contact the end surface of the cylinder 11 and is connected by a screw 14, a clamping block 121 is provided at the end away from the collar 122, the outer diameter of the collar 122 is slightly smaller than the outer diameter of the cylinder 11, and a boss 123 is provided at the end opposite to the clamping block 121, and the clamping block 121 is a column formed by cutting a cylindrical body into a polygon 1211 and retaining a circular arc segment 1212 of appropriate length. With the above structure, the rotating shaft 12 and the cylinder 11 can be processed separately, the process is simple, and the cost is reduced; the boss 123 at the end of the collar 122 cooperates with the inner hole 113 of the cylinder 11 for positioning, the outer diameter of the collar 122 is slightly smaller than the outer diameter of the cylinder 11, which does not hinder the matching requirements of the cylinder 11 and the shell 2, and improves the rotation accuracy; the clamping block 121 is a column composed of a polygon 1211 and a circular arc segment 1212, so that it can be clamped by an electric drill and an auxiliary clamp.

[0030] The present invention is further configured as follows: the shell 2 is provided with a stepped large through hole 21 and a small through hole 22 with different inner diameters, the inner diameter of the large through hole 21 is flexible with the outer diameter of the barrel 11 of the rotor 1, and the length of the large through hole 21 is greater than the sum of the length of the end cover 13, the barrel 11, and the shaft ring 122 after assembly and the length of the wire end winding, the diameter of the small through hole 22 is smaller than the diameter of the shaft ring 122 of the rotating shaft 12, and is greater than the diameter of the rotating shaft 12, and a guide hole 23 is provided on the wall of the shell 2 in the axial direction. With the above structure, since the rotor 1 can be rotated and moved in the shell 2, the stepped limit of the small through hole 22 prevents the rotor 1 from moving out of the shell 2 when rotating, thereby ensuring the effective length of the wire end winding and improving safety at the same time; the guide hole 23 on the wall of the shell 2 can make the clamping device 3 move axially relative to the shell 2 to adjust the position of the clamped wire.

[0031] The present invention is further configured as follows: the clamping device 3 includes a support rod 31 and a clamping assembly 32, one end of the support rod 31 is provided with an external thread, and the inner side of the external thread is provided with a shaft shoulder 311, the clamping assembly 32 includes a clamp seat 321, a clamp cover 322, and a positioning clamping mechanism 323 for the clamp cover 322 and the clamp seat 321, the clamp cover 322 is hinged to the clamp seat 321 through a connecting sleeve 323, the clamp seat 321 is provided with a first groove 3211, the clamp cover 322 is provided with a second groove 3221, and the first groove 3211 and the second groove 3221 form a clamping slot for clamping the wire. The above structure is simple in structure and easy to use. The clamp cover 322 can rotate around the axis of the connecting sleeve 323 to achieve an open or closed state. When closed, the clamping long hole can clamp multiple wires side by side and is suitable for wires of different diameters with strong adaptability. When opened, the wires with the ends wrapped around can be easily taken out.

[0032] The present invention is further configured as follows: the positioning clamping mechanism 323 includes a support ear 3211, a lifting ear 3221, a handle 3231 and a U-shaped buckle 3232, the support ear 3211 is fixed on the clamp seat 321, the lifting ear 3221 is fixed on the clamp cover 322, the handle 3231 is hingedly connected to the support ear 3211, and a spindle 3233 is provided at a certain distance from the hinge center, the spindle 3233 has radial through holes at both ends, and the two ends of the U-shaped buckle 3232 with external thread openings pass through the radial through holes of the spindle 3233 respectively and are fastened with nuts 3234. With the above structure, the wire can be clamped and released by only pulling and pushing the handle 3231, which is convenient to use and has high work efficiency.

[0033] The present invention is further configured as follows: a limiting groove 3222 is provided on the side of the ear 3221 facing away from the support ear 3211, and the U-shaped buckle 3232 abuts against the inner wall of the limiting groove 3222 when clamping the wire. With the above structure, when the handle 3231 is pulled to clamp the wire, the U-shaped buckle 3232 is prevented from being separated from the ear 3221.

[0034] The present invention is further configured as follows: the clamp seat 321 is sleeved on one end of the support rod 31 with external threads, one end face of the clamp seat 321 is in contact with the shaft shoulder 311 for positioning, a nut 312 is provided on the outer side of the other end face for screwing and fixing with the external threads of the support rod 31, and the end of the support rod 31 opposite to the external threads is a smooth rod that is looped in the guide hole 23 of the housing 2. With the above structure, the clamping assembly 32 is positioned and screwed by the shaft shoulder 311, with a simple structure and convenient installation. One end of the smooth rod of the support rod 31 can move axially in the guide hole 23, which is conducive to adjusting the position of the clamping assembly 32 to adapt to wires of different thicknesses.

Claims

1. A wire end wrapper, characterized in that: The invention comprises a rotor, a shell and a clamping device, wherein a cylinder is provided in the middle of the rotor, a chip storage chamber is provided in the cylinder, a plurality of longitudinal accommodating grooves for placing electric wires are provided on the inner wall of the chip storage chamber, one end of the opening of the chip storage chamber of the cylinder is screwed with the end cover, and a rotating shaft is fixedly provided at the other end, a central through hole and a wire positioning hole connected with the longitudinal groove are provided on the end cover, and the outer diameter of the end cover is slightly smaller than the outer diameter of the cylinder, the central through hole is connected with the chip storage chamber, the outer end of the wire positioning hole is a conical surface, and the conical surface and the end surface of the end cover form a hole for stripping the insulation layer of the electric wire. The blade of the shell is slidably mounted on the rotor, the clamping device is arranged on the outside of the end cover, one end of the rotating shaft is provided with a collar that contacts the end face of the cylinder and is connected by screws, and the end away from the collar is provided with a clamping block, the outer diameter of the collar is slightly smaller than the outer diameter of the cylinder, and a boss is provided at the end opposite to the clamping block, the clamping block is a column cut into a polygon with an arc segment of appropriate length, the shell is provided with stepped large through holes and small through holes with different inner diameters, and the inner diameter of the large through hole is flexibly matched with the outer diameter of the rotor cylinder. , and the length of the large through hole is greater than the sum of the length of the end cover, the cylinder, and the shaft ring after assembly and the length of the wire end winding, the diameter of the small through hole is smaller than the shaft ring diameter of the rotating shaft, and greater than the diameter of the rotating shaft, a guide hole is provided on the wall of the shell in the axial direction, the clamping device includes a support rod and a clamping assembly, one end of the support rod is provided with an external thread, and the inner side of the external thread is provided with a shaft shoulder, the clamping assembly includes a clamp seat, a clamp cover and a positioning and clamping mechanism for the clamp cover and the clamp seat, the clamp cover is hinged to the clamp seat through a connecting sleeve, the A first groove is provided on the clamp seat, a second groove is provided on the clamp cover, the first groove and the second groove form a long clamping hole for clamping the wire, the positioning clamping mechanism includes a support ear, a lifting ear, a handle and a U-shaped buckle, the support ear is fixed on the clamp seat, the lifting ear is fixed on the clamp cover, the handle is hinged to the support ear, and a spindle is provided at a certain distance from the center of the hinge, radial through holes are provided at both ends of the spindle, and both ends of the externally threaded opening of the U-shaped buckle pass through the radial through holes of the spindle respectively and are fastened with nuts.

2. A wire end wrapper according to claim 1, characterized in that: A limiting groove is provided on a side of the lifting ear facing away from the supporting ear, and the U-shaped buckle contacts the inner wall of the limiting groove when clamping the electric wire.

3. A wire end wrapper according to claim 1, characterized in that: The clamp seat sleeve is arranged at one end of the support rod with external thread, one end face of the clamp seat is in contact with the shaft shoulder for positioning, and a nut is provided on the outer side of the other end face to be screwed and fixed with the external thread of the support rod, and the end of the support rod opposite to the external thread is a smooth rod that is loosely sleeved in the guide hole of the outer shell.

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