Sofa chair steel wire bending equipment

Abstract

The utility model discloses a sofa chair steel wire bending device. The sofa chair steel wire bending device comprises a workbench, a profiling die, a press-fit machining assembly and a limiting bending assembly. The profiling die is fixed to the workbench, and the outer ring of the profiling die is provided with a machining edge corresponding to the radian curve of a needed finished product. The press-fit machining assembly is provided with an arc-shaped face matched with the middle of the machining edge. The arc-shaped face can be switched between the mode of being away from the machining edge and the mode of pressing the middle of the machining edge. And the limiting bending assembly comprises a roller and a displacement driving assembly. The rolling wheels can be driven by the displacement driving assembly to move along the side edge of the machining edge. According to the utility model, the profiling die is matched with the pressing die to bend the steel wire, so that the bending shape of the steel wire is perfectly fitted with a sofa chair product, the uneven phenomenon is eliminated, the groove broaching and wire drawing processes are uniform and attractive, the product quality is improved, the batch uniformity is ensured, and the rework and repair are reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of sofa chair production, and in particular relates to a steel wire bending device for sofa chairs. Background Art

[0002] Sofa chairs usually refer to single-seat sofas. In today's busy urban life, sofa chairs are everywhere, bringing people a comfortable and fashionable home experience. Sofa chairs with simple lines and smooth layers are becoming more and more popular.

[0003] In the processing of sofa chairs, the steel wire threading, grooving and wire drawing processes inside the sofa chairs are commonly used to create lines and three-dimensional shapes. Bending the steel wire into curves according to the backrest or seat cushion is a more tedious step in the process.

[0004] In the prior art, after employees manually pass straight steel wires through the cloth, they need to manually bend the steel wires into the curved arc of the sofa seat back. Since the bending needs to constantly compare the arc size to achieve the purpose of reducing errors, the efficiency of manual bending is low; secondly, bending the steel wires in batches for a long time and multiple times will cause employee fatigue and consume physical strength. At the same time, the sharp parts at both ends of the steel wires can easily cause scratches to operators; finally, the manual bending of steel wires has low precision, and the formed arc is difficult to achieve a perfect fit with the product, which leads to uneven grooving and wire pulling, and the finished product is not beautiful, affecting product quality, with a high rework rate and even causing customer complaints. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides a sofa chair steel wire bending device to solve the technical problems of low processing precision and high processing cost of the processed steel wire.

[0006] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0007] A sofa chair steel wire bending device, comprising a workbench;

[0008] The profiling die is fixed on a workbench and has an outer ring provided with a processing edge corresponding to the required finished product radian curve.

[0009] A pressing processing component; the pressing processing component is provided with an arc surface matching the middle of the processing edge; the arc surface can switch between being away from the processing edge and pressing with the middle of the processing edge;

[0010] The position-limiting bending assembly comprises a roller and a displacement driving assembly. The roller can move along the side of the processing edge under the drive of the displacement driving assembly.

[0011] Furthermore, the processed edge is divided into a middle pressing part and two bending parts at both sides. There are two limit bending components, which are symmetrically arranged on one side of the two bending parts.

[0012] Furthermore, the displacement drive assembly includes a second cylinder, a drive base and a drive motor. The roller is fixed to the end of the piston rod of the second cylinder. The second cylinder is slidably connected to the workbench through the drive base; the drive motor is fixed to the workbench, and a threaded rod is provided on the output shaft. The threaded rod is threadedly connected to the drive base.

[0013] Furthermore, an annular groove is provided on the roller.

[0014] Furthermore, the pressing processing assembly includes a pressing die and a first cylinder. The pressing die is mounted on the end of the piston rod of the first cylinder. The arc surface is arranged on a side surface of the pressing die facing the profiling die.

[0015] Furthermore, both ends of the pressing die are provided with clamping openings.

[0016] Furthermore, the workbench is divided into a support frame at the bottom and a work surface at the top. The bottom of the support frame is provided with universal wheels.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model adopts a profiling die and a pressing die to bend the steel wire, so that the bent shape of the steel wire fits perfectly with the sofa chair product, eliminating unevenness, and the grooving and wire drawing processes are uniform and beautiful, thereby improving product quality and ensuring batch uniformity, and reducing rework and repair.

[0019] 2. The utility model controls the pressing die and roller to bend the wire by the first cylinder and the second cylinder, which can effectively reduce the difficulty of operation for employees, is not easy to get tired, is easier, and has greatly improved efficiency compared with traditional manual bending, and has a lower probability of work-related injuries.

[0020] 3. The utility model can meet the needs of different types of products by replacing and assembling profiling dies and pressing dies of different shapes, so that it can be applied to the processing of steel wire products with different sizes and curvatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 It is a schematic diagram of the relative positions of the profiling die, the pressing processing component, and the limiting bending component in the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the pressing processing assembly in the utility model ( Figure 1 Partial enlarged view of part A in the middle);

[0024] Figure 4 It is a structural schematic diagram of the position-limiting bending assembly in the utility model;

[0025] Figure 5 It is a structural schematic diagram of the displacement drive component in the utility model.

[0026] Figure numerals: 1, workbench; 1-1, support frame; 1-2, work table surface; 2, profiling mold; 2-1, pressing part; 2-2, bending part; 3, pressing processing assembly; 3-1, pressing mold; 3-2, first cylinder; 3-3, arc surface; 3-4, clamping mouth; 4, limit bending assembly; 4-1, second cylinder; 4-2, mounting base; 4-3, roller; 4-4, sliding base; 4-5, driving base; 4-6, threaded rod. DETAILED DESCRIPTION

[0027] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] The utility model will be further described below in conjunction with the accompanying drawings.

[0029] like Figure 1 and 2 As shown, a sofa chair steel wire bending device includes a workbench 1, a profiling die 2, a pressing processing assembly 3 and a limit bending assembly 4. The workbench 1 is divided into a support frame 1-1 at the bottom and a workbench 1 surface at the top. The profiling die 2, the pressing processing assembly 3 and the limit bending assembly 4 are all arranged on the workbench 1 surface, and are used to process the processed steel wire into the shape of the corresponding finished product.

[0030] like Figure 2 As shown, the outer ring of the profiling die 2 is provided with a processing edge corresponding to the desired finished product curvature curve. The processing edge is divided into a middle pressing part 2-1 and a bending part 2-2 on both sides. The pressing processing assembly 3 is used to clamp and limit the processed steel wire, and cooperate with the pressing part 2-1 of the processing edge to press and bend the middle part of the processed steel wire.

[0031] like Figure 3As shown, the pressing processing assembly 3 includes a pressing die 3-1 and a first cylinder 3-2. The pressing die 3-1 is installed at the end of the piston rod of the first cylinder 3-2, and can be driven by the first cylinder 3-2 to move closer to or away from the profiling die 2.

[0032] The side surface of the pressing die 3-1 facing the pressing part 2-1 is provided with an arc surface 3-3 which matches with the pressing part 2-1. During processing, the pressing die 3-1 moves downward under the drive of the first cylinder 3-2 until the arc surface 3-3 of the pressing die 3-1 is pressed on the pressing part 2-1, and the pressing and bending of the middle part of the processed steel wire is completed through the mutual cooperation between the arc surface 3-3 and the pressing part 2-1.

[0033] Furthermore, both ends of the pressing die 3-1 are provided with clamping openings 3-4. During processing, the processed steel wire is limited and fixed by the two clamping openings 3-4 to ensure that the processed steel wire is parallel to the pressing part 2-1.

[0034] like Figure 2 and 4 As shown, there are two limit bending assemblies 4, which are symmetrically arranged on both sides of the profiling die 2, and are used to cooperate with the bending portion 2-2 of the processing edge to bend the two ends of the processed steel wire.

[0035] The position-limiting bending assembly 4 comprises a roller 4-3 and a displacement driving assembly. The roller 4-3 can move along the bending portion 2-2 of the processing edge under the drive of the displacement driving assembly.

[0036] Specifically, the displacement drive assembly includes a second cylinder 4-1, a mounting base 4-2, a sliding base 4-4, a driving base 4-5 and a driving motor. The second cylinder 4-1 is slidably connected to the workbench 1 through the sliding base 4-4, and reciprocates along the edge direction of the processed edge bending portion 2-2. The roller 4-3 is fixed to the end of the piston rod of the second cylinder 4-1 through the mounting base 4-2, and can move closer to or away from the bending portion 2-2 of the profiling mold 2 under the drive of the second cylinder 4-1. The roller 4-3 is provided with an annular groove adapted to the diameter of the processed steel wire, which is used to limit the processed steel wire during the bending process, effectively avoiding the deviation of the processed steel wire.

[0037] Further, such as Figure 5 As shown, the driving base 4-5 is arranged on the bottom surface of the workbench 1, and the top passes through the slide rail and is fixed to the sliding base 4-4. The driving motor is fixed on the bottom surface of the workbench 1, and a threaded rod 4-6 is arranged on the output shaft. The threaded rod 4-6 is threadedly connected with the driving base 4-5. When the driving motor drives the threaded rod 4-6 to rotate, it will drive the driving base 4-5 to move, and then drive the second cylinder 4-1 to slide along the slide path.

[0038] In the initial state, the bottoms of the rollers 4-3 on the two second cylinders 4-1 are flush with the clamping openings 3-4 on the pressing die 3-1, thereby defining the positions of the two ends of the processed steel wire. When the pressing die 3-1 completes the pressing and bending of the middle part of the processed steel wire. Through the cooperation of the second cylinder 4-1 and the driving motor, the driving roller 4-3 moves along the edge of the bending part 2-2. Under the cooperation of the roller 4-3 and the bending part 2-2, the bending of both sides of the processed steel wire is completed to produce the shape of the desired product.

[0039] In addition, in this embodiment, universal wheels are provided at the bottom of the support frame 1-1. The support frame 1-1 can be moved to a designated processing station via the universal wheels, and the universal wheels are locked after reaching the processing station.

[0040] A control switch is provided on the side of the workbench 1. The control buttons on the control switch are used to control the movement and reset of the first cylinder 3-2 and the second cylinder 4-1 respectively.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A steel wire bending device for a sofa chair, comprising a workbench (1); characterized in that: Also includes A profiling die (2), wherein the profiling die (2) is fixed on the workbench (1) and has an outer ring provided with a processing edge corresponding to a desired finished product radian curve; A pressing processing component (3); the pressing processing component (3) is provided with an arcuate surface (3-3) matching with the middle of the processing edge; the arcuate surface (3-3) can switch between being away from the processing edge and pressing with the middle of the processing edge; A position-limiting bending assembly (4); the position-limiting bending assembly (4) comprises a roller (4-3) and a displacement drive assembly; the roller (4-3) can move along the side of the processing edge under the drive of the displacement drive assembly.

2. The sofa chair steel wire bending device according to claim 1, characterized in that: The processed edge is divided into a middle pressing portion (2-1) and bending portions (2-2) on both sides; there are two limit bending components (4) in total, which are symmetrically arranged on one side of the two bending portions (2-2).

3. The sofa chair steel wire bending device according to claim 2, characterized in that: The displacement drive assembly comprises a second cylinder (4-1), a drive base (4-5) and a drive motor; the roller (4-3) is fixed to the end of the piston rod of the second cylinder (4-1); the second cylinder (4-1) is slidably connected to the workbench (1) via the drive base (4-5); the drive motor is fixed to the workbench (1), and a threaded rod (4-6) is provided on the output shaft; the threaded rod (4-6) is threadedly connected to the drive base (4-5).

4. The sofa chair steel wire bending device according to claim 1, characterized in that: The roller (4-3) is provided with an annular groove.

5. The sofa chair steel wire bending device according to claim 1, characterized in that: The pressing processing assembly (3) comprises a pressing die (3-1) and a first cylinder (3-2); the pressing die (3-1) is mounted on the end of the piston rod of the first cylinder (3-2); and the arc surface (3-3) is arranged on a side surface of the pressing die (3-1) facing the profiling die (2).

6. The sofa chair steel wire bending device according to claim 5, characterized in that: Both ends of the pressing mold (3-1) are provided with clamping openings (3-4).

7. The sofa chair steel wire bending device according to claim 1, characterized in that: The workbench (1) is divided into a support frame (1-1) at the bottom and a work surface at the top; the bottom of the support frame (1-1) is provided with universal wheels.

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