Ring-forming plier

Abstract

A ring-forming plier, comprising: one end of a first plier arm is provided with a fixed plate, a plurality of forming columns having different diameters are connected to the fixed plate, a mounting plate is rotatably connected to each forming column, a forming protrusion is connected to each mounting plate, and a forming gap for forming a metal wire is formed between each forming protrusion and a corresponding forming column thereof; a second plier arm is rotatably connected to the first plier arm, the second plier arm is provided with a connecting portion, the connecting portion is rotatably switched between an initial position and a forming position, the connecting portion is transmittingly connected to a plurality of mounting plates by means of transmission assemblies, and in the process of the connecting portion rotating from the initial position to the forming position, each forming protrusion forms, on the corresponding forming column, a metal wire located in the corresponding forming gap, so as to form an O-shaped ring. The ring-forming plier can improve the working efficiency, and can bend the metal wire into O-shaped rings of various sizes.

Description

A looping pliers

[0001] Cross-reference to related applications

[0002] The present application claims priority to the Chinese patent application No. 202411140434.1, filed on August 19, 2024, and entitled "A Looping Pliers", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of looping equipment, in particular to a looping pliers. BACKGROUND

[0004] When connecting some hand strings, earrings, necklaces and other decorations, it is often necessary to manually connect various beads with aluminum wire or soft copper wire and the like, and after completion, the head or tail of the soft metal wire needs to be folded into an O-shaped loop to prevent the beads from falling off, and the O-shaped loop plays a role in limiting the beads or hanging.

[0005] In related technologies, an O-shaped loop can be bent by manually using a combination of several pliers such as needle-nose pliers, round-nose pliers, and cutting pliers, but the O-shaped loop produced is not only non-standard, but also slow, and it is not possible to use one tool to bend the metal wire into multiple sizes of O-shaped loops, resulting in low work efficiency.

[0006] SUMMARY

[0007] Therefore, the present application provides a looping pliers to improve work efficiency and bend metal wires into multiple sizes of O-shaped loops.

[0008] The present application provides a looping pliers, comprising:

[0009] A first plier arm is provided with a fixed plate at one end, a plurality of different diameter forming columns are connected to the fixed plate, an installation plate is rotatably connected to each forming column, a forming protrusion is connected to each installation plate, and a forming gap for forming a metal wire is provided between the forming protrusion and the corresponding forming column.

[0010] A second plier arm is rotatably connected to the first plier arm, the second plier arm is provided with a connecting portion adapted to be rotatably switched between an initial position and a forming position, the connecting portion is drivingly connected to the plurality of installation plates through a transmission assembly, and in the process of rotating the connecting portion from the initial position to the forming position, the forming protrusion forms an O-shaped loop on the forming column by forming the metal wire located in the forming gap.

[0011] Beneficial effects: The metal wire is placed in the forming gap, the first jaw arm and the second jaw arm are pulled, the connecting part on the second jaw arm is rotated from the initial position to the forming position, in the process of rotation, the connecting part drives the mounting plate to rotate through the transmission assembly, the forming protrusion rotates around the forming column, the metal wire in the forming gap is bent and formed on the forming column to form an O-shaped ring, multiple tools are not needed to operate at the same time, it is simpler, multiple forming columns with different diameters are installed on the fixed plate, multiple O-shaped rings with different diameters can be formed, and the working efficiency is improved.

[0012] In an optional implementation, the shearing piece further includes a first shearing part and a second shearing part, the first shearing part is connected to the fixed plate, the second shearing part is connected to the connecting part, and the first shearing part and the second shearing part form a shearing gap for shearing the metal wire when the connecting part is in the initial position.

[0013] Beneficial effects: When the connecting part is in the initial position, the metal wire is in the shearing gap, the shearing piece can shear off the excess metal wire, and the forming protrusion winds and forms the metal wire on the forming column.

[0014] In an optional implementation, the first shearing part includes multiple first shearing plates, the multiple first shearing plates are connected to the fixed plate and are arranged one by one corresponding to the multiple forming columns.

[0015] The second shearing part includes multiple second shearing plates, the multiple second shearing plates are connected to the connecting part and are arranged one by one corresponding to the multiple first shearing plates, and the first shearing plate and the second shearing plate arranged correspondingly form a shearing gap therebetween.

[0016] Beneficial effects: One first shearing plate and one second shearing plate corresponding thereto form a shearing knife, multiple shearing knives correspond to multiple forming columns and are arranged, and the metal wire with an excess length can be sheared off.

[0017] In an optional implementation, the distance between the shearing end of the first shearing plate and the corresponding forming protrusion is less than or equal to the cross-sectional circumference of the corresponding forming column.

[0018] Beneficial effects: It can be ensured that the sheared metal wire can exactly wind around the forming column once, and the situation of being too long or too short does not occur, and the specification of the O-shaped ring is ensured.

[0019] In an optional implementation, the transmission assembly includes multiple gears and an arc-shaped toothed plate, the multiple gears are rotationally connected to the multiple forming columns, the multiple mounting plates are connected to the multiple gears, the arc-shaped toothed plate is connected to the connecting part and is engaged with the multiple gears, and the multiple second shearing plates are connected to the arc-shaped toothed plate.

[0020] Beneficial effects: the arc-shaped toothed plate can drive multiple gears to rotate at the same time, and the multiple gears can drive multiple mounting plates to rotate at the same time, forming multiple O-rings with different diameters, thereby improving production efficiency; through the transmission mode of the gear and the arc-shaped toothed plate, the transmission precision is high, and the specification of the O-ring is not affected.

[0021] In an optional embodiment, the multiple mounting plates are provided with mounting holes corresponding to the multiple forming columns, and the multiple mounting holes are rotationally connected to the multiple forming columns.

[0022] In an optional embodiment, the multiple limiting blocks are arranged on the fixing plate and correspond to the multiple forming columns one by one, and the limiting block and the corresponding forming column form a mounting gap therebetween, and the mounting gap is communicated with the forming gap.

[0023] Beneficial effects: the wire passes through the mounting gap, the forming gap and the shearing gap in sequence, and the corresponding first shearing plate and the second shearing plate cut the wire to a suitable length, the wire is provided with a first section between the forming protrusion and the shearing end of the first shearing plate, and the remaining part is a second section, the forming protrusion rotates with the mounting plate to wind the first section of the wire on the forming column, the second section of the wire abuts against the limiting block, the limiting block supports the second section of the wire, so that the first section of the wire forms an O-ring; the limiting block is away from the rotating path of the forming protrusion, and does not affect the rotation of the forming protrusion with the mounting plate.

[0024] In an optional embodiment, the limiting block is provided with a limiting surface, and the limiting surface is used for positioning the wire.

[0025] In an optional embodiment, the forming protrusion is provided with a guide surface, and the guide surface and the corresponding forming column form a forming gap therebetween.

[0026] In an optional embodiment, the elastic member is connected to the first jaw arm at one end and connected to the second jaw arm at the other end, and under the action of the elastic member, the connecting part has a tendency to rotate in the direction from the forming position to the initial position.

[0027] Beneficial effects: after the wire is processed, the first jaw arm and the second jaw arm are loosened, the connecting part rotates to the initial position under the action of the elastic member, and is ready for processing the next wire. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the specific embodiments or prior art of the present application, the drawings needed in the description of the specific embodiments or prior art will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0029] Fig. 1 is a structural schematic diagram of a coiling pliers according to an embodiment of the present application;

[0030] Fig. 2 is a partial enlarged schematic diagram of A in Fig. 1;

[0031] Fig. 3 is a structural schematic diagram of the coiling pliers according to another embodiment of the present application;

[0032] Fig. 4 is a partial enlarged schematic diagram of B in Fig. 3;

[0033] Fig. 5 is a top view of the coiling pliers according to an embodiment of the present application;

[0034] Fig. 6 is a partial enlarged schematic diagram of C in Fig. 5;

[0035] Fig. 7 is a partial structural schematic diagram of the coiling pliers according to an embodiment of the present application;

[0036] Fig. 8 is a partial enlarged schematic diagram of D in Fig. 7.

[0037] Explanation of reference signs:

[0038] 1, first plier arm; 2, fixed plate; 3, forming column; 4, mounting plate; 5, forming protrusion; 51, guide surface; 6, second plier arm; 7, connecting part; 8, transmission assembly; 81, gear; 82, arc-shaped toothed plate; 9, shearing piece; 91, first shearing plate; 92, second shearing plate; 10, forming gap; 11, shearing gap; 12, limiting block; 121, limiting surface; 13, mounting gap; 14, elastic piece; 15, connecting hole; 16, rotating connecting piece; 17, fixed connecting piece. DETAILED DESCRIPTION

[0039] In order to make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0040] The embodiments of the present application will be described below with reference to Figs. 1 to 8.

[0041] According to the embodiments of the present application, a coiling pliers is provided, comprising:

[0042] The first clamp arm 1 is provided with a fixed plate 2 at one end, a plurality of forming columns 3 with different diameters are connected to the fixed plate 2, each forming column 3 is rotatably connected with a mounting plate 4, each mounting plate 4 is connected with a forming protrusion 5, and a forming gap 10 for forming a metal wire is arranged between each forming protrusion 5 and the corresponding forming column 3;

[0043] The second clamp arm 6 is rotatably connected with the first clamp arm 1, and the second clamp arm 6 is provided with a connecting part 7 which is adapted to be rotatably switched between an initial position and a forming position. The connecting part 7 is drivingly connected with the plurality of mounting plates 4 through a transmission assembly 8. In the process of rotating the connecting part 7 from the initial position to the forming position, the forming protrusions 5 form the metal wire located in the forming gap 10 on the forming columns 3 to form an O-shaped ring.

[0044] The metal wire is placed in the forming gap 10, the first clamp arm 1 and the second clamp arm 6 are pulled, so that the connecting part 7 on the second clamp arm 6 is rotated from the initial position to the forming position. In the process of rotation, the connecting part 7 drives the mounting plate 4 to rotate through the transmission assembly 8, so that the forming protrusion 5 rotates around the forming column 3 as the axis. The forming protrusion 5 bends the metal wire located in the forming gap 10 on the forming column 3 to form an O-shaped ring. This method does not need to use multiple tools at the same time, and is simpler. The fixed plate 2 is provided with a plurality of forming columns 3 with different diameters, so that O-shaped rings with different diameters can be formed, thereby improving the work efficiency.

[0045] In some embodiments, as shown in FIGS. 5 and 7, the connecting part 7 is fixedly connected with the second clamp arm 6 through a fixed connecting piece.

[0046] In some specific embodiments, a fixing hole is correspondingly formed on the connecting part 7 and the second clamp arm 6, and the fixed connecting piece 17 is correspondingly inserted into the fixing hole to fixedly connect the connecting part 7 and the second clamp arm 6.

[0047] In some specific embodiments, the fixed connecting piece 17 can be selected from a bolt, a threaded rivet or an expansion rivet.

[0048] In some embodiments, a connecting hole 15 is correspondingly arranged on each of the first clamp arm 1, the second clamp arm 6 and the connecting part 7, and the first clamp arm 1, the second clamp arm 6 and the connecting part 7 are rotatably connected through a rotating connecting piece 16 inserted into the connecting hole 15.

[0049] In some specific embodiments, the rotating connecting piece 16 can be selected from a pin shaft, a threaded rivet or an expansion rivet.

[0050] In some embodiments, a plurality of forming columns 3 with different diameters are fixed on the fixed plate 2.

[0051] In some embodiments, the forming protrusions 5 are fixed on the mounting plates 4.

[0052] In some embodiments, the fixed plate 2 is fixed at one end of the first plier arm 1.

[0053] In one embodiment, as shown in FIG. 4, FIG. 6 and FIG. 7, the cutting member 9 further comprises a first cutting part and a second cutting part, the first cutting part is connected to the fixed plate 2, and the second cutting part is connected to the connecting part 7, when the connecting part 7 is in the initial position, the first cutting part and the second cutting part form a cutting gap 11 for cutting the metal wire, and during the switching process of the connecting part 7 from the initial position to the forming position, the first cutting part and the second cutting part cut off the metal wire.

[0054] As shown in FIG. 4, when the connecting part 7 is in the initial position, the metal wire is located in the cutting gap 11, and the cutting member 9 can cut off the excess metal wire, while the forming protrusion 5 winds and forms the metal wire on the forming column 3.

[0055] In one specific embodiment, the first cutting part is fixed to the fixed plate 2, and the second cutting part is fixedly connected to the connecting part 7.

[0056] In one specific embodiment, the first cutting part is fixedly connected to the fixed plate 2 by welding or bonding; and the second cutting part is fixedly connected to the connecting part 7 by welding or bonding.

[0057] In one embodiment, the first cutting part comprises a plurality of first cutting plates 91, the plurality of first cutting plates 91 are connected to the fixed plate 2 and arranged one-to-one corresponding to the plurality of forming columns 3; and the second cutting part comprises a plurality of second cutting plates 92, the plurality of second cutting plates 92 are connected to the connecting part 7 and arranged one-to-one corresponding to the plurality of first cutting plates 91, and the first cutting plate 91 and the second cutting plate 92 arranged corresponding to each other form the cutting gap 11.

[0058] One first cutting plate 91 and one second cutting plate 92 corresponding thereto form a group of cutting knives, and a plurality of groups of cutting knives are arranged corresponding to a plurality of forming columns 3, which can cut off the metal wire of excess length.

[0059] In one specific embodiment, the plurality of first cutting plates 91 are fixed to the fixed plate 2, and the plurality of second cutting plates 92 are fixedly connected to the connecting part 7.

[0060] In one specific embodiment, the plurality of first cutting plates 91 are fixed to the fixed plate 2 by welding.

[0061] In one embodiment, the distance between the cutting end of the first cutting plate 91 and the corresponding forming protrusion 5 is less than or equal to the cross-sectional circumference of the corresponding forming column 3. It can ensure that the cut metal wire can exactly wrap around the forming column 3 once, without being too long or too short, and ensure the specification of the O-ring.

[0062] In one embodiment, the transmission assembly 8 comprises a plurality of gears 81 and an arc-shaped gear plate 82, the plurality of gears 81 are correspondingly rotationally connected to the plurality of forming columns 3, the plurality of mounting plates 4 are correspondingly connected to the plurality of gears 81, the arc-shaped gear plate 82 is connected to the connecting portion 7 and is engaged with the plurality of gears 81, and the plurality of second shearing plates 92 are connected to the arc-shaped gear plate 82.

[0063] The arc-shaped gear plate 82 is fixedly connected to the connecting portion 7, the plurality of second shearing plates 92 are fixedly connected to the arc-shaped gear plate 82, the arc-shaped gear plate 82 can simultaneously drive the plurality of gears 81 to rotate, the plurality of gears 81 can simultaneously drive the plurality of mounting plates 4 to rotate, a plurality of O-rings with different diameters are formed, and the production efficiency is improved; through the transmission mode of the gears 81 and the arc-shaped gear plate 82, the transmission precision is high, and the specifications of the O-rings are not affected.

[0064] In one specific embodiment, the gear 81 and the corresponding mounting plate 4 are integrally formed.

[0065] In one specific embodiment, the arc-shaped gear plate 82 is welded to the connecting portion 7 or is integrally formed.

[0066] In one specific embodiment, the plurality of second shearing plates 92 are fixedly connected to the arc-shaped gear plate 82 by welding or the plurality of second shearing plates 92 are integrally formed with the arc-shaped gear plate 82.

[0067] In some embodiments, the plurality of forming columns 3 are arranged along the arc direction of the arc-shaped gear plate 82 and are perpendicularly fixed to the fixing plate 2.

[0068] In one embodiment, the plurality of mounting plates 4 are provided with mounting holes corresponding to the plurality of forming columns 3, and the plurality of mounting holes are correspondingly rotationally connected to the plurality of forming columns 3.

[0069] In some embodiments, the mounting plate 4 is a circular plate.

[0070] In one embodiment, as shown in FIG. 6, the fixing plate 2 further comprises a plurality of limiting blocks 12, the plurality of limiting blocks 12 are connected to the fixing plate 2 and are arranged one-to-one corresponding to the plurality of forming columns 3, the limiting block 12 and the corresponding forming column 3 form an installation gap 13 therebetween, and the installation gap 13 is in communication with the forming gap 10.

[0071] As shown in FIG. 6, the wire is sequentially threaded through the installation gap 13, the forming gap 10 and the shearing gap 11, and the corresponding first shearing plate 91 and second shearing plate 92 cut the wire into appropriate lengths. The wire is provided with a first section between the shearing end of the first shearing plate 91 and the forming protrusion 5, and a second section. The forming protrusion 5 rotates with the mounting plate 4 to form the first section of the wire around the forming column 3. The second section of the wire abuts against the limiting block 12, which provides support for the second section of the wire, so that the first section of the wire forms an O-shaped ring. The limiting block 12 is away from the rotating path of the forming protrusion 5, and does not affect the rotation of the forming protrusion 5 with the mounting plate 4.

[0072] In some embodiments, a plurality of limiting blocks 12 are fixedly connected to the fixed plate 2.

[0073] In some embodiments, a plurality of forming columns 3, a fixed plate 2, a plurality of first shearing plates 91 and a plurality of limiting blocks 12 are integrally formed.

[0074] In one embodiment, the limiting block 12 is provided with a limiting surface 121 for positioning the wire.

[0075] In some embodiments, the limiting surface 121 and the axis of the forming column 3 are located in the same plane. The second section of the wire is tightly attached to the limiting surface 121, so that the straight line where the second section is located coincides with the diameter of the O-shaped ring formed by the first section, improving the aesthetic appearance.

[0076] In some embodiments, the limiting surface 121 and the axis of the forming column 3 can also be located in different planes.

[0077] In one embodiment, the forming protrusion 5 is provided with a guide surface 51, and the guide surface 51 and the corresponding forming column 3 form the forming gap 10.

[0078] In some embodiments, the guide surface 51 is an inclined surface, which is arranged to be inclined from the edge of the mounting plate 4 towards the forming column 3, so that the forming gap 10 formed between the guide surface 51 and the forming column 3 gradually narrows in the opposite direction of the rotation of the mounting plate 4.

[0079] In one embodiment, an elastic member 14 is further included, one end of which is connected to the first jaw arm 1 and the other end of which is connected to the second jaw arm 6. Under the action of the elastic member 14, the connecting portion 7 has a tendency to rotate in the direction from the forming position to the initial position.

[0080] After the wire is processed, the first jaw arm 1 and the second jaw arm 6 are loosened, and under the action of the elastic member 14, the connecting portion 7 rotates to the initial position, preparing for the processing of the next wire.

[0081] In a specific embodiment, the elastic member 14 can be selected from a torsional spring, a spring piece or a component with elasticity.

[0082] While embodiments of the application have been described in connection with the preferred embodiments of the application, it will be understood that various modifications and variations will be utilised in carrying out the application by those skilled in the art. Such modifications and variations are to be considered as falling within the scope of the application as defined by the appended claims.

Claims

1. A looping forceps, characterized by, The utility model relates to a wire forming device, including: First jaw arm (1), one end is equipped with fixed plate (2), be connected with a plurality of different diameter forming post (3) on fixed plate (2), each forming post (3) is rotatably connected with mounting plate (4), each mounting plate (4) is connected with forming convex (5), and the forming gap (10) for forming metal wire is arranged between forming convex (5) and its corresponding forming post (3); Second jaw arm (6) is rotatably connected with first jaw arm (1), and second jaw arm (6) is provided with connecting portion (7), and connecting portion (7) is suitable for rotating switching between initial position and forming position, and connecting portion (7) is drivenly connected with a plurality of mounting plate (4) through transmission assembly (8), and the metal wire in forming gap (10) is formed on forming post (3) to form O type ring in the process that connecting portion (7) rotates from initial position to forming position.

2. The crimping pincer according to claim 1, characterized in that, Also including shearing piece (9), first shearing part and second shearing part are connected on fixed plate (2), and the shearing gap (11) for shearing metal wire is formed between first shearing part and second shearing part when connecting portion (7) is located in initial position, and first shearing part and second shearing part cut off metal wire in the process that connecting portion (7) rotates and switches from initial position to forming position.

3. The crimping pincer according to claim 2, wherein The first shearing part includes a plurality of first shearing plates (91), and a plurality of first shearing plates (91) are connected to the fixed plate (2) and arranged one-to-one with a plurality of forming posts (3); The second shearing part includes a plurality of second shearing plates (92), and a plurality of second shearing plates (92) are connected to the connecting portion (7) and arranged one-to-one with a plurality of first shearing plates (91), and the shearing gap (11) is formed between the corresponding first shearing plate (91) and the second shearing plate (92).

4. The crimping pincer according to claim 3, wherein The distance between the shearing end of the first shearing plate (91) and the corresponding forming convex (5) is less than or equal to the cross-sectional circumference of the corresponding forming post (3).

5. The crimping pincer according to claim 3, wherein The transmission assembly (8) includes a plurality of gears (81) and an arc-shaped tooth plate (82), a plurality of gears (81) are rotatably connected to a plurality of forming posts (3), a plurality of mounting plates (4) are connected to a plurality of gears (81), the arc-shaped tooth plate (82) is connected to the connecting portion (7) and engaged with a plurality of gears (81), and a plurality of second shearing plates (92) are connected to the arc-shaped tooth plate (82).

6. The twist-on pliers of any one of claims 1 to 5, wherein, A plurality of mounting holes are provided on a plurality of mounting plates (4) corresponding to a plurality of forming posts (3), and a plurality of mounting holes are rotatably connected to a plurality of forming posts (3).

7. The loop clamp according to any one of claims 1 to 5, wherein A plurality of limiting blocks (12) are further included, which are connected to the fixing plate (2) and arranged one-to-one with the plurality of shaped columns (3), and an installation gap (13) is formed between the limiting block (12) and the corresponding shaped column (3), and the installation gap (13) is communicated with the shaping gap (10).

8. The crimping pincer according to claim 7, characterized in that The limiting block (12) is provided with a limiting surface (121) for positioning the metal wire.

9. The twist-on pliers of any one of claims 1 to 5, wherein, The shaped protrusion (5) is provided with a guide surface (51), which forms the shaping gap (10) with the corresponding shaped column (3).

10. The crimping pincer according to claim 1, wherein An elastic member (14) is further included, one end of which is connected to the first jaw arm (1), and the other end is connected to the second jaw arm (6), and under the action of the elastic member (14), the connecting part (7) has a tendency to rotate in the direction from the shaping position to the initial position.

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