Single-core wire coiling device

Abstract

The invention discloses a single-core wire looping device which comprises the components of a rotating central base which is provided with a cylindrical looping central column which is coaxially arranged at the upper end and is provided with a positioning block, and a first gap which is arranged between the positioning block and the looping central column and is used for clamping a metal conductor; the movable outer ring is coaxially and rotationally connected to the upper end of the rotating center seat and is provided with a winding ejector pin arranged in the radial direction, a second gap allowing a metal conductor to be inserted therein is formed between the looping center column and the winding ejector pin, and the positioning block is located on a moving path of the winding ejector pin; one end of the handheld handle is fixedly connected with the lower end of the rotating center seat; one end of the movable handle is fixedly connected with the movable outer ring, and the handheld handle and the movable handle are overlapped up and down in an initial state so as to facilitate storage. The winding device has the advantage that the winding size is consistent.

Description

Technical Field

[0001] The invention relates to the technical field of secondary joint manufacturing, in particular to a single-core wire looping device. Background Art

[0002] The production of single-core secondary wiring heads is very frequent in power field operations. When power personnel are wiring on site, they need to make secondary wiring heads to connect the wire cores to the terminal block. When using single-core hard wires to make secondary wiring heads, it is necessary to circle the metal conductor after stripping the insulation layer at the end of the single-core wire according to the diameter of the screw and insert it into the terminal for crimping. The common method is to use needle-nosed pliers to make a circle, but the size of the circle cannot be accurately controlled. Summary of the invention

[0003] In order to overcome the deficiencies in the prior art, the present invention provides a single-core wire looper having the advantage of a uniform coil size.

[0004] In order to achieve the above object, the present invention adopts the following technical solution:

[0005] A single-core wire looper, comprising:

[0006] The rotating center seat has a coaxially arranged cylindrical looping center column at the upper end, and is provided with a positioning block, wherein a first gap for clamping the metal conductor is provided between the positioning block and the looping center column;

[0007] The movable outer ring is coaxially connected to the upper end of the rotating center seat, and is provided with a radially arranged winding thimble. A second gap for inserting a metal conductor is provided between the circle center column and the winding thimble. The positioning block is located on the moving path of the winding thimble.

[0008] A hand-held handle, one end of which is fixedly connected to the lower end of the rotating center seat;

[0009] One end of the movable handle is fixedly connected to the movable outer ring. In the initial state, the hand-held handle and the movable handle overlap each other up and down for easy storage.

[0010] By adopting the above technical solution, the insulation layer of the end of the single-core wire is stripped, and then the exposed metal conductor is inserted into the first gap and the second gap, and then the movable handle drives the movable outer ring to rotate. During this process, the inner end of the winding thimble presses against the metal conductor so that the metal conductor wraps around the circle making center column until the hand-held handle and the movable handle overlap up and down. At this time, the exposed metal conductor forms a secondary joint in the shape of a sheep's eye ring. Since the inner end of the winding thimble always maintains the same distance with the circle making center column and rotates coaxially around the circle making center column, the size of the circle can be kept consistent. In addition, the hand-held handle and the movable handle can overlap up and down, which is convenient for the circle making device to be folded and stored.

[0011] Optionally, a limiting ring is provided on the movable outer ring; an end limiting piece is provided on the limiting ring; the end limiting piece is used to limit the end of the metal conductor to control the loop length of the metal conductor; before looping, the end of the metal conductor passes through the first gap and the second gap in sequence and then abuts against the end limiting piece.

[0012] By adopting the above technical solution, the end of the metal conductor is made to abut against the end limit piece before making a circle, so as to control the length of the wire wrapped around the center column of the circle, and it is less likely to have problems such as an incomplete circle shape and an end that is too long.

[0013] Optionally, the end limit member includes an end limit seat and an adjusting bolt; the adjusting bolt passes through and is screwed onto the end limit seat; and the end of the metal conductor abuts against the end of the adjusting bolt.

[0014] By adopting the above technical solution, the end of the metal conductor is made to abut against the end of the adjusting bolt before making a circle, so as to control the length of the wire around the center column of the circle. In addition, since the adjusting bolt is threadedly connected to the end limit seat, the position of the adjusting bolt can be changed by rotating the adjusting bolt. In this way, it can be adjusted according to the actual production situation to improve the quality of the secondary joint.

[0015] Optionally, the rotating center seat includes a fixed seat and an annular operating disk; the circling center column is fixed on the fixed seat; the circling center column coaxially passes through the operating disk; the fixed seat and the operating disk are detachably connected.

[0016] By adopting the above technical solution, if the number of circles is too many, the working surface of the rotating center seat is prone to damage, thus affecting the quality of subsequent circles. After the rotating center seat is split into a fixed seat and an operating disk, the top surface of the operating disk becomes the working surface. When damage occurs, the operating disk can be replaced, thereby increasing the overall service life.

[0017] Optionally, a positioning groove for inserting the bottom of the positioning block is formed on the upper end surface of the rotating center seat.

[0018] By adopting the above technical solution, the bottom of the positioning block is inserted into the positioning groove, so that the connection strength of the positioning block is greater and it is not easy to shift.

[0019] Optionally, a connection positioning block is formed on the outer side of the bottom surface of the winding ejector pin; and a connection positioning groove for inserting the connection positioning block is formed on the movable outer ring.

[0020] By adopting the above technical solution, the connection positioning block of the winding ejector pin is inserted into the connection positioning groove, so that the connection strength of the winding ejector pin is greater and it is not easy to shift.

[0021] Optionally, the winding pin has a first surface and a second surface; the positioning block has a first stop surface and a second stop surface; before making a circle, the first surface of the winding pin abuts against the first stop surface of the positioning block; after making a circle, a third gap is set between the second surface of the winding pin and the second stop surface of the positioning block for the metal conductor to pass radially.

[0022] By adopting the above technical solution, the first surface and the first stop surface cooperate so that the winding pin can make way for the wire placement path, and at the same time the winding pin and the positioning block are in contact through a plane, reducing the possibility of extrusion damage; a third gap is set between the second surface and the second stop surface for the metal conductor to pass radially, so that the secondary joint can form the required eyelet.

[0023] Optionally, the upper and lower end surfaces of the positioning block and the winding ejector pin are respectively flush; the thickness of the positioning block and the winding ejector pin is greater than twice the diameter of the metal conductor; and the upper end surface of the looping center column is higher than the positioning block and the winding ejector pin.

[0024] By adopting the above technical solution, the wire is not easy to escape from between the looping center column, the positioning block and the winding thimble, which is beneficial to improving the efficiency and quality of looping.

[0025] Optionally, the handheld handle is provided with laser engraved lines along its length direction.

[0026] By adopting the above technical solution, the laser marking line can be used as a detection device for the length of the insulation layer stripped off the single-core wire, which is convenient for subsequent looping. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention before circling.

[0028] Figure 2 It is a structural schematic diagram of the present invention before circling.

[0029] Figure 3 It is a structural schematic diagram of the present invention after the looping is completed.

[0030] Figure 4 It is a structural schematic diagram of the present invention after the looping is completed.

[0031] Figure 5 It is a structural schematic diagram of the present invention in which the positioning block is separated from the rotating center seat and the winding ejector pin is separated from the movable outer ring.

[0032] Figure 6 It is a structural schematic diagram of the cross section after the looping of the present invention is completed.

[0033] Description of reference numerals:

[0034] 10. Rotation center seat; 100. First gap; 101. Second gap; 102. Third gap; 103. Positioning groove; 11. Looping center column; 12. Positioning block; 121. First stop surface; 122. Second stop surface; 13. Operation panel; 14. Fixed seat; 141. Upper support ring; 142. Stop surface;

[0035] 20, movable outer ring; 200, connection positioning groove; 21, winding ejector pin; 211, first surface; 212, second surface; 213, connection positioning block;

[0036] 30. Handle; 300. Connection hole; 31. Laser engraving;

[0037] 40. Movable handle;

[0038] 50. Limiting ring sleeve; 51. End limiting seat; 52. Adjusting bolt; 53. Connecting bolt;

[0039] 60. Metal conductor;

[0040] 70. Secondary joint;

[0041] 80. Bearings. DETAILED DESCRIPTION

[0042] The following is combined with Figure 1-Figure 6 The present invention is described in further detail.

[0043] Embodiment 1: A single-core wire looper is disclosed, referring to Figure 1-Figure 4 and Figure 6 , including a rotating center seat 10, a movable outer ring 20, a hand-held handle 30, a movable handle 40 and a limiting ring sleeve 50; the movable outer ring 20 is rotatably connected to the upper end of the rotating center seat 10 through a bearing 80; a connecting plate 22 extends from one end of the movable outer ring 20; the connecting plate 22 and the movable handle 40 are connected as a whole by bolts; one end of the hand-held handle 30 is connected to the lower part of the rotating center seat 10 by bolts; a radially arranged winding thimble 21 is fixed to the movable outer ring 20 by bolts; a positioning block 12 is fixed to the rotating center seat 10 by bolts; The core seat 10 has a coaxially arranged looping center column 11; the winding ejector pin 21 radially points to the looping center column 11; the positioning block 12 and the winding ejector pin 21 are on the same horizontal plane and the upper and lower end surfaces of the two are flush; the upper end surface of the looping center column 11 is higher than the positioning block 12 and the winding ejector pin 21. In order to reduce the possibility of accidental escape of the metal conductor 60 during looping, the thickness of the positioning block 12 and the winding ejector pin 21 is greater than twice the diameter of the metal conductor 60; the limiting ring sleeve 50 is installed on the rotating center seat 10 and is used to limit the end position of the metal conductor 60.

[0044] refer to Figure 1-Figure 4 and Figure 6The rotating center seat 10 includes a cylindrical fixing seat 14 with an opening at the lower end and a ring-shaped operating disk 13; the operating disk 13 is coaxially sleeved on the circle center column 11 and fixed to the upper end surface of the fixing seat 14 by a plurality of first bolts; in order to hide the first bolt, a first hole for the first bolt to pass vertically is formed on the top of the fixing seat 14, and a first threaded hole matching the first bolt is formed on the operating disk 13, and the first bolt passes through the hole of the fixing seat 14 and is screwed into the threaded hole of the operating disk 13.

[0045] refer to Figure 6 The upper end of the outer cylindrical surface of the fixed seat 14 is formed with a coaxially arranged upper support ring 141; the inner surface of the movable outer ring 20 is composed of a first inner cylindrical surface, a second inner cylindrical surface and a third inner cylindrical surface which are distributed from top to bottom and coaxially arranged; the diameter of the first inner cylindrical surface is greater than the diameter of the second inner cylindrical surface; the diameter of the second inner cylindrical surface is greater than the diameter of the third inner cylinder; the outer ring of the bearing 80 is interference fit with the third inner cylindrical surface of the movable outer ring 20, and the inner ring is interference fit with the fixed seat 14; the upper support ring 141 is located in the second inner cylindrical surface and its diameter is greater than the diameter of the first inner cylindrical surface and smaller than the diameter of the second inner cylindrical surface; the operating panel 13 is located in the first inner cylindrical surface and its diameter is slightly smaller than the diameter of the first inner cylindrical surface.

[0046] refer to Figure 6 A rotation-stopping surface 142 parallel to the axial direction is formed on the outer cylindrical surface of the lower part of the fixing seat 14; a connecting hole 300 is formed at one end of the hand-held handle 30 for the lower part of the fixing seat 14 to vertically pass through; the bolt radially passes through the side wall of the connecting hole 300 of the hand-held handle 30 and the inner end abuts against the outer cylindrical surface of the fixing seat 14.

[0047] refer to Figure 5 In order to improve the connection strength of the positioning block 12, a positioning groove 103 is formed on the operating panel 13 for vertical insertion of the bottom of the positioning block 12; the installation method of the bolt used to connect the positioning block 213 refers to the first bolt, and can also be hidden in the fixing seat 14; in order to facilitate the clamping of the metal conductor 60, refer to Figure 2 A first gap 100 is provided between the inner end of the positioning block 12 and the circle center column 11 .

[0048] refer to Figure 5 In order to improve the connection strength of the winding ejector pin 21, a connection positioning block 213 is formed on the outer side of the bottom surface of the winding ejector pin 21; a connection positioning groove 200 for inserting the connection positioning block 213 is formed on the movable outer ring 20; when connecting, the bolt passes through the winding ejector pin 21 and is screwed on the bottom surface of the connection positioning groove 200; in order to drive the metal conductor 60 to move along the cylindrical surface of the looping center column 11 to achieve looping, refer to Figure 2 A second gap 101 is provided between the inner end of the winding ejector pin 21 and the looping center column 11 .

[0049] refer to Figure 2 and Figure 4 The inner side end of the winding ejector pin 21 is formed with a first surface 211 and a second surface 212 so that the inner side end of the winding ejector pin 21 is sharp-angled; the circumferential ends of the positioning block 12 are respectively formed with a first stop surface 121 and a second stop surface 122; before making a circle, refer to Figure 2 The first surface 211 of the winding ejector 21 abuts against the first stop surface 121 of the positioning block 12; after the circle is completed, refer to Figure 4 A third gap 102 for the metal conductor 60 to radially pass through is provided between the second surface 212 of the winding ejector pin 21 and the second stop surface 122 of the positioning block 12 .

[0050] refer to Figure 1-Figure 4 and Figure 6 , the limiting ring sleeve 50 is made of nylon material, and the inner surface of the limiting ring sleeve 50 is composed of a fourth inner cylindrical surface and a fifth inner cylindrical surface which are distributed from top to bottom and are coaxially arranged; the diameter of the fourth inner cylindrical surface is smaller than the diameter of the fifth inner cylindrical surface; the diameter of the fourth inner cylindrical surface is larger than the diameter of the operating panel 13 and smaller than the outer diameter of the movable outer ring 20; the diameter of the fifth inner cylindrical surface is equal to the diameter of the movable outer ring 20; a radially penetrating connecting threaded hole is formed on the limiting ring sleeve 50; a connecting bolt 53 is screwed in the connecting threaded hole; when the limiting ring sleeve 50 is installed, the limiting ring sleeve 50 is sleeved on the movable outer ring 20 from top to bottom, and the connecting bolt 53 is screwed so that the inner side end of the connecting bolt 53 abuts against the outer cylindrical surface of the movable outer ring 20, so that the positions of the movable outer ring 20 and the limiting ring sleeve 50 are relatively fixed; in order to make the installation position of the limiting ring sleeve 50 accurate, a limiting notch for the movable handle 40 to enter is formed on the limiting ring sleeve 50.

[0051] refer to Figure 1-Figure 4 In order to limit the end position of the metal conductor 60, an end limit piece is provided on the limit ring sleeve 50; the end limit piece includes an end limit seat 51 integrally formed with the limit ring sleeve 50 and an adjusting bolt 52 horizontally passing through and screwed on the end limit seat 51.

[0052] Working principle of embodiment 1: The initial state is as follows Figure 3 and Figure 4 As shown, at this time, the hand-held handle 30 and the movable handle 40 overlap each other, which is convenient for storage; before making a circle, the movable handle 40 is rotated counterclockwise to drive the movable outer ring 20, the winding thimble 21 and the limiting ring 50 to rotate counterclockwise together until the circle is reached. Figure 2As shown in the figure, the first surface 211 of the winding ejector 21 abuts against the first stop surface 121 of the positioning block 12. At this time, the first gap 100, the second gap 101 and the adjusting bolt 52 are roughly in a straight line. Then, the end of the single-core wire is stripped of the insulation layer to expose the metal conductor 60. The metal conductor 60 is inserted into the first gap 100 and the second gap 101 and its end abuts against the end of the adjusting bolt 52. Then, the movable handle 40 is rotated clockwise to drive the movable outer ring 20, the winding ejector 21, and the limiting ring 50 to rotate counterclockwise together until the movable outer ring 20, the winding ejector 21, and the limiting ring 50 are rotated counterclockwise. Figure 3 and Figure 4 As shown, the hand-held handle 30 and the movable handle 40 overlap each other, and the end of the metal conductor 60 is formed as shown. Figure 4 The sheep eye ring-shaped secondary joint 70 shown in the figure. Since the adjusting bolt 52 can be moved forward and backward by rotating, if the coil shape of the previous secondary joint 70 is not closed or the end is too long, the adjusting bolt 52 can be rotated to move forward and backward, thereby improving the quality of the secondary joint 70.

[0053] Embodiment 2: The difference between Embodiment 2 and Embodiment 1 is that: in order to increase the function of the circle making device, reference Figure 1 and Figure 2 The handheld handle 30 is provided with laser marking lines 31 arranged along the length direction thereof. When the insulation layer of a single-core conductor is stripped, the stripping length can be confirmed with the aid of the laser marking lines 31 .

[0054] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-core wire looper, characterized in that: include: A rotating center seat (10) has a coaxially arranged cylindrical looping center column (11) at the upper end, and is provided with a positioning block (12), wherein a first gap (100) for clamping a metal conductor (60) is provided between the positioning block (12) and the looping center column (11); The movable outer ring (20) is coaxially rotatably connected to the upper end of the rotating center seat (10), and is provided with a radially arranged winding thimble (21). A second gap (101) for inserting a metal conductor (60) is provided between the looping center column (11) and the winding thimble (21), and the positioning block (12) is located on the moving path of the winding thimble (21); A hand-held handle (30), one end of which is fixedly connected to the lower end of the rotating center seat (10); One end of the movable handle (40) is fixedly connected to the movable outer ring (20); in an initial state, the hand-held handle (30) and the movable handle (40) overlap each other for easy storage.

2. A single-core wire looper according to claim 1, characterized in that: A limiting ring sleeve (50) is provided on the movable outer ring (20); an end limiting piece is provided on the limiting ring sleeve (50); the end limiting piece is used to limit the end of the metal conductor (60) to control the loop length of the metal conductor (60); before looping, the end of the metal conductor (60) passes through the first gap (100) and the second gap (101) in sequence and then abuts against the end limiting piece.

3. A single-core wire looper according to claim 2, characterized in that: The end stopper comprises an end stopper seat (51) and an adjusting bolt (52); the adjusting bolt (52) passes through and is screwed onto the end stopper seat (51); and the end of the metal conductor (60) abuts against the end of the adjusting bolt (52).

4. A single-core wire looper according to claim 1, characterized in that: The rotating center seat (10) comprises a fixed seat (12) and a circular operating disk (13); the circling center column (11) is fixed on the fixed seat (12); the circling center column (11) coaxially passes through the operating disk (13); the fixed seat (12) and the operating disk (13) are detachably connected.

5. The single-core wire looper according to claim 1, characterized in that: A positioning groove (103) for inserting the bottom of the positioning block (12) is formed on the upper end surface of the rotating center seat (10).

6. A single-core wire looper according to claim 1, characterized in that: A connection positioning block (213) is formed on the outer side of the bottom surface of the winding ejector pin (21); and a connection positioning groove (200) for inserting the connection positioning block (213) is formed on the movable outer ring (20).

7. The single-core wire looper according to claim 1, characterized in that: The winding pin (21) has a first surface (211) and a second surface (212); the positioning block (12) has a first stop surface (121) and a second stop surface (122); before making a circle, the first surface (211) of the winding pin (21) abuts against the first stop surface (121) of the positioning block (12); after making a circle, a third gap (102) is provided between the second surface (212) of the winding pin (21) and the second stop surface (122) of the positioning block (12) for the metal conductor (60) to pass radially.

8. The single-core wire looper according to claim 1, characterized in that: The upper and lower end surfaces of the positioning block (12) and the winding ejector pin (21) are respectively flush; the thickness of the positioning block (12) and the winding ejector pin (21) is greater than twice the diameter of the metal conductor (60); and the upper end surface of the looping center column (11) is higher than the positioning block (12) and the winding ejector pin (21).

9. The single-core wire looper according to claim 1, characterized in that: The handheld handle (30) is provided with laser engraved lines (31) arranged along the length direction thereof.

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