Pipe bending apparatus for chair frame tubing

Abstract

The utility model discloses a kind of pipe bending equipment for chair framework pipe fittings, including rack, automatic double-bending machine body is equipped in the middle of the rack, the both sides of the rack are fixed with feeding box by fixed frame, the upper portion of the feeding box has opening, the lower portion of the feeding box has supply channel, cylinder one is horizontally fixed on the fixed frame, the piston rod end of the cylinder one and push head are fixedly connected, and push head can enter from one end of supply channel and exit from the other end of supply channel, limiting baffle is also arranged between the automatic double-bending machine body and feeding box, limiting baffle is also connected with a control mechanism that can make it move back and forth.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical technology and relates to a bending device for chair frame tubes. Background Technology

[0002] Chairs are a common type of furniture, primarily used to provide support for sitting or lying down. During the chair manufacturing process, various metal frame components are typically used as core support parts to ensure structural stability and load-bearing capacity. These frame components include, but are not limited to, steel pipes, aluminum pipes, and other alloy pipes. After processing, they are welded or assembled into the main frame structure of the chair, providing the necessary strength support and safety for the final product.

[0003] In the production and processing of chair frame tubing, double-bending equipment is an indispensable processing tool. While current double-bending equipment can automatically bend round tubing fed into the machine, its storage capacity is limited, requiring frequent replenishment and increasing the workload of operators. Therefore, designing a tubing bending machine for chair frame tubing to solve these problems is particularly necessary. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a bending device for chair frame tubing.

[0005] To achieve the above objectives, the technical solution of this utility model is: a bending device for chair frame tubing, comprising a frame, wherein an automatic double bending machine body is mounted in the middle of the frame, characterized in that a feeding box is fixed on both sides of the frame by a fixing bracket, the feeding box has an opening at the top and a feeding channel at the bottom, a cylinder is horizontally fixed on the fixing bracket, the piston rod end of the cylinder is fixedly connected to a push head, and the push head can pass through one end of the feeding channel and exit from the other end of the feeding channel, a limiting baffle is also arranged between the automatic double bending machine body and the feeding box, and the limiting baffle is also connected to a control mechanism that enables it to move back and forth.

[0006] The control mechanism includes a vertical plate, a guide rail, a slider, and a connecting seat. The vertical plate and the guide rail are both fixed on the frame, with the vertical plate close to one end of the guide rail. The slider is slidably connected to the guide rail. The connecting seat is fixedly connected to the slider. The limiting baffle is fixed on the connecting seat. The second cylinder is horizontally fixed on the vertical plate, and the piston rod end of the second cylinder is fixedly connected to the slider.

[0007] A limit block is also fixed at the other end of the guide rail.

[0008] The piston rod end of cylinder one is fixedly connected to the push head via an elastic element.

[0009] The push head is shaped like a frustum.

[0010] The feeding box is also fixed with a guide tube that cooperates with the feeding channel.

[0011] The feeding box also has an auxiliary insertion notch.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are: The innovation of this utility model lies in the ingenious design of a dual-feed box structure. This design allows round pipes to be fed into the automatic double bending machine body from both sides. This dual-side feeding method not only significantly increases the storage capacity of round pipes in the equipment, but more importantly, it greatly reduces the workload of operators who need to frequently replenish pipes in the equipment. Through this symmetrical layout of the dual-feed boxes, the equipment can achieve continuous operation for a longer period of time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the planar structure of this utility model; Figure 2 This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 1 ; Figure 3 This is a schematic diagram of the three-dimensional structure of the removed portion of this utility model. Figure 2 ; Figure 4 This is a schematic diagram of the planar structure of the removed portion of this utility model; In the diagram, 1 is the frame; 2 is the automatic double bending machine body; 3 is the limiting baffle; 4 is the guide rail; 5 is the feeding box; 5a is the insertion auxiliary notch; 6 is cylinder one; 7 is the slider; 8 is the upright plate; 9 is cylinder two; 11 is the connecting seat; 12 is the limit block; 13 is the guide cylinder; 14 is the fixing frame; 15 is the elastic element; and 16 is the pusher head. Detailed Implementation

[0014] To further explain the technical solution of this utility model, the following detailed description is provided through specific embodiments.

[0015] like Figure 1-4As shown, the bending equipment for the tubing of this chair frame includes a frame 1. An automatic double bending machine body 2 is mounted in the middle of the frame 1. In this embodiment, the automatic double bending machine body 2 is an existing product, capable of automatically bending circular tubing and automatically unloading the finished product. Feed boxes 5 are fixed to both sides of the frame 1 via fixing brackets 14. The feed boxes 5 have openings at the top and feeding channels at the bottom. A cylinder 6 is horizontally fixed to the fixing brackets 14. The piston rod end of the cylinder 6 is fixedly connected to a push head 16. The tube can pass through one end of the supply channel and exit through the other end. With this structure, the piston rod is extended by the cylinder 6, and the piston rod of the cylinder 6 drives the pusher head 16 to push the circular tube in the feed box 5 on one side to the automatic double bending machine body 2. This is an existing technology. Finally, the end of the circular tube abuts against the limiting baffle 3 located on the other side. The limiting baffle 3 is also arranged between the automatic double bending machine body 2 and the feed box 5. The limiting baffle 3 is also connected to a control mechanism that allows it to move back and forth.

[0016] The control mechanism includes a vertical plate 8, a guide rail 4, a slider 7, and a connecting seat 11. The vertical plate 8 and the guide rail 4 are both fixed on the frame 1, with the vertical plate 8 close to one end of the guide rail 4. Specifically, a limit block 12 is also fixed to the other end of the guide rail 4. The slider 7 is slidably connected to the guide rail 4, and the connecting seat 11 is fixedly connected to the slider 7. The limiting baffle 3 is fixed to the connecting seat 11. The second cylinder 9 is horizontally fixed to the vertical plate 8, and the piston rod end of the second cylinder 9 is fixedly connected to the slider 7. With this structure, the piston rod of the second cylinder 9 drives the slider 7 to move along the guide rail 4, the slider 7 drives the connecting seat 11 to move, and the connecting seat 11 drives the limiting baffle 3 to move, thereby causing the limiting baffle 3 to work alternately.

[0017] The piston rod end of cylinder 6 is fixedly connected to push head 16 via elastic element 15; push head 16 is shaped like a frustum.

[0018] The feeding box 5 is also fixed with a guide cylinder 13 that cooperates with the supply channel. With this structure, the circular tube can be smoothly entered into the body 2 of the automatic double bending machine through the guide cylinder 13.

[0019] The feeding box 5 is also provided with an auxiliary insertion notch 5a. With this structure, it is convenient to put the round tube into the feeding box 5.

[0020] The innovation of this utility model lies in the ingenious design of a dual-feed box structure. This design allows circular tubes to be fed into the automatic double bending machine body 2 from both sides. This dual-side feeding method not only significantly increases the storage capacity of circular tubes in the equipment, but more importantly, it greatly reduces the workload of operators who need to frequently replenish tubes in the equipment. Through this symmetrical layout of the dual-feed boxes, the equipment can achieve continuous operation for a longer period of time.

[0021] The presence or absence of round tubular material in the feed box 5 is achieved using existing technology; meanwhile, the actions of cylinders 6 and 9 are all implemented using existing control modules.

[0022] In this embodiment, after all the circular tubes in the feed box 5 on one side have been fed, the feed box 5 on the other side can continue to feed.

[0023] All of the above components are general standard parts or components known to those skilled in the art. Their structure and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0024] The above embodiments and figures are not intended to limit the product form and style of this utility model. Any appropriate changes or modifications made by those skilled in the art should be considered as not departing from the patent scope of this utility model.

Claims

1. A bending device for chair frame tubing, comprising a frame (1), wherein an automatic double bending machine body (2) is mounted in the middle of the frame (1), characterized in that, The machine frame (1) has a feeding box (5) fixed on both sides by a fixing frame (14). The feeding box (5) has an opening at the top and a supply channel at the bottom. A cylinder (6) is horizontally fixed on the fixing frame (14). The piston rod end of the cylinder (6) is fixedly connected to the push head (16). The push head (16) can pass through one end of the supply channel and exit from the other end of the supply channel. A limiting baffle (3) is also arranged between the automatic double bending machine body (2) and the feeding box (5). The limiting baffle (3) is also connected to a control mechanism that can make it move back and forth.

2. The bending device for chair frame tubing according to claim 1, characterized in that, The control mechanism includes a vertical plate (8), a guide rail (4), a slider (7), and a connecting seat (11). The vertical plate (8) and the guide rail (4) are both fixed on the frame (1), and the vertical plate (8) is close to one end of the guide rail (4). The slider (7) is slidably connected to the guide rail (4). The connecting seat (11) and the slider (7) are fixedly connected. The limiting baffle (3) is fixed on the connecting seat (11). The second cylinder (9) is horizontally fixed on the vertical plate (8). The piston rod end of the second cylinder (9) is fixedly connected to the slider (7).

3. The bending device for chair frame tubing according to claim 2, characterized in that, The guide rail (4) is also fixed at the other end with a limit block (12).

4. The bending device for chair frame tubing according to claim 1, characterized in that, The piston rod end of the cylinder (6) is fixedly connected to the push head (16) by an elastic element (15).

5. The bending device for chair frame tubing according to claim 4, characterized in that, The push head (16) is shaped like a frustum.

6. The bending device for chair frame tubing according to claim 1, characterized in that, The feed box (5) is also fixed with a guide tube (13) that cooperates with the feed channel.

7. The bending device for chair frame tubing according to claim 1, characterized in that, The feeding box (5) is also provided with an auxiliary insertion notch (5a).

Images