Middle bending device for automobile seat backrest grid

Abstract

The utility model relates to a middle bending device for an automobile seat backrest grid, which comprises a rack, two groups of first bending mechanisms and two groups of second bending mechanisms, a first sliding rail is arranged on the rack, the two groups of first bending mechanisms are respectively and symmetrically arranged on the first sliding rail through first moving plates, a first cylinder is arranged on the rack, and a second cylinder is arranged on the rack. An output shaft of the first air cylinder is connected with the first moving plate, the second bending mechanism is connected with the first bending mechanisms through bolts, the first moving plate is driven by the first air cylinder to freely slide on a sliding way of the first sliding rail, the first moving plate drives the two first bending mechanisms to move, and therefore the distance between the two first bending mechanisms is adjusted. Therefore, the grid wire bending device can be used for bending the wires with different widths, and is wide in applicability.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile seat back mesh wire processing, in particular to an intermediate bending device for an automobile seat back mesh. Background Art

[0002] Mesh wires are important supporting components of car seat backs. Usually, car seat backs are bent according to the requirements of car models or installation locations. Different car models usually require different widths of mesh wires. Existing intermediate bending devices for car seat back meshes usually have a limiting mechanism and a mesh positioning mechanism. A plurality of folding arms, limiting columns, and folding columns are symmetrically arranged on both sides of the limiting mechanism, so that a plurality of wires can be folded at the same time. However, the distances between the folding arms, limiting columns, and folding columns on both sides cannot be adjusted, that is, the existing intermediate bending devices for car seat back meshes can only bend mesh wires of one width, so they have poor applicability. Utility Model Content

[0003] The purpose of the utility model is to design a middle bending device for a grid of a car seat backrest to solve the technical problems raised in the above-mentioned background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an intermediate bending device for a car seat back grid, comprising a frame, two groups of first bending mechanisms and a second bending mechanism, a first slide rail is installed on the frame, and the two groups of the first bending mechanisms are symmetrically installed on the first slide rail through a first movable plate, a first cylinder is installed on the frame, the output shaft of the first cylinder is connected to the first movable plate, and the second bending mechanism is connected to the first bending mechanism through bolts.

[0005] Furthermore, the first bending mechanism includes a fixed seat, a driving assembly, a plurality of formers and a limiting column, the limiting column corresponds to the former one by one, the former is connected to the driving assembly, the former is rotatably connected to the fixed seat, and the limiting column is fixedly connected to the fixed seat.

[0006] Furthermore, the driving assembly includes a second cylinder, a second movable plate, a second slide rail and a rack, the second movable plate is connected to the output shaft of the second cylinder, the second movable plate is slidably connected to the second slide rail, and the rack is fixedly connected to the second movable plate.

[0007] Furthermore, a gear is installed at the bottom of each former, and each gear is meshed with the rack.

[0008] Furthermore, the second bending mechanism includes a third cylinder, a push rod and a plurality of limit blocks, the plurality of limit blocks are arrayed on the push rod, and the push rod is connected to the output shaft of the third cylinder.

[0009] Furthermore, it also includes a positioning mechanism, which includes a fourth cylinder and a pressure block, and the pressure block is connected to the output shaft of the fourth cylinder.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model drives the first movable plate to slide arbitrarily on the slideway of the first slide rail through the first cylinder, and the first movable plate drives the two groups of first bending mechanisms to move respectively, thereby adjusting the distance between the two groups of first bending mechanisms to adapt to grid wires of different widths. Therefore, the utility model can bend wires of different widths and has a wide applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model of the present invention;

[0012] Figure 2 It is a partial structural schematic diagram of the utility model;

[0013] Figure 3 It is a schematic diagram of the structure of the unprocessed mesh wire;

[0014] Figure 4 Schematic diagram of the structure of the processed mesh wire.

[0015] The names of the components marked in the figure are as follows: 1. Frame; 2. First bending mechanism; 201. Fixed seat; 202. Driving assembly; 202a. Second cylinder; 202b. Second movable plate; 202c. Second slide rail; 202d. Rack; 203. Former; 204. Limiting column; 3. Second bending mechanism; 301. Third cylinder; 302. Push rod; 303. Limiting block; 4. First slide rail; 5. First movable plate; 6. First cylinder; 7. Gear; 8. Positioning mechanism; 801. Fourth cylinder; 802. Pressing block; 9. Mesh wire. DETAILED DESCRIPTION

[0016] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0017] Example: Please refer to Figure 1-4A middle bending device for a grid of a car seat backrest comprises a frame 1, two groups of first bending mechanisms 2 and a second bending mechanism 3, a first slide rail 4 is installed on the frame 1, and the two groups of first bending mechanisms 2 are symmetrically installed on the first slide rail 4 through first movable plates 5 respectively, a first cylinder 6 is installed on the frame 1, and the output shaft of the first cylinder 6 is connected to the first movable plate 5. The first cylinder 6 applies force to the first movable plate 5, so that the two first movable plates 5 can move arbitrarily within the slide range of the first slide rail 4, thereby driving the corresponding first bending mechanism 2 to move, and further realizing the adjustment of the distance between the two groups of first bending mechanisms 2; the second bending mechanism 3 is connected to the first bending mechanism 2 through bolts, and the position of the second bending mechanism 3 is adjusted by removing the bolts, so that the second bending mechanism 3 is located in the middle of the two groups of first bending mechanisms 2.

[0018] It also includes a positioning mechanism 8. In order to achieve a good positioning effect, two groups of positioning mechanisms 8 are respectively provided on both sides of the grid wire 9. The positioning mechanism 8 includes a fourth cylinder 801 and a pressure block 802. The fourth cylinder 801 is fixedly installed on the fixed seat 201 through a mounting plate. The pressure block 802 is connected to the output shaft of the fourth cylinder 801. The fourth cylinder 801 applies force to the pressure block 802, so that the pressure block 802 can fix the processing position of the grid wire 9; the first bending mechanism 2 includes a fixed seat 201, a driving assembly 202, a plurality of formers 203 and a limiting column 204. The fixed seat 201 is fixedly installed on the first movable plate 5. The limiting column 204 corresponds to the former 203 one by one, the former 203 is rotatably connected to the fixed seat 201, the limiting column 204 is fixedly connected to the fixed seat 201, the former 203 is connected to the driving assembly 202, and the former 203 is driven to rotate by the driving assembly 202, so that the former 203 bends the grid wire 9; specifically, the former 203 is a prior art and will not be described in detail here. The driving assembly 202 includes a second cylinder 202a, a second movable plate 202b, a second slide rail 202c and a rack 202d, the second movable plate 202b is connected to the output shaft of the second cylinder 202a, and the second movable plate 202 b is slidably connected with the second slide rail 202c. More specifically, a slider adapted to the second slide rail 202c is provided at the bottom of the second movable plate 202b, and the rack 202d is fixedly connected with the second movable plate 202b. A force is applied to the second movable plate 202b by the second cylinder 202a, so that the second movable plate 202b slides on the second slide rail 202c, and the second movable plate 202b drives the rack 202d to move, so that the former 203 rotates; more specifically, a gear 7 is installed at the bottom of each former 203, wherein the former 203 passes through the fixed seat 201 and is fixedly connected with the gear 7, and each gear 7 is connected to the rack 202d is meshed, and under the action of the fixed seat 201 and the gear 7, the rack 202d moves to rotate the gear 7, thereby realizing the automatic rotation of the former 203; the second bending mechanism 3 includes a third cylinder 301, a push rod 302 and a plurality of limit blocks 303, the plurality of limit blocks 303 are arrayed on the push rod 302, and the limit blocks 303 correspond to the former 203 one by one, the push rod 302 is connected to the output shaft of the third cylinder 301, and the third cylinder 301 applies force to the push rod 302, so that the limit block 303 is tightly attached to the outer wall of the grid wire 9, thereby limiting the middle part of the grid wire 9, which is convenient for the subsequent bending process.

[0019] The working principle of this embodiment is as follows: when in use, the mesh wire 9 to be processed is placed on the former 203, the third cylinder 301 is started, the third cylinder 301 pushes the push rod 302 to move, so that the limit block 303 is close to the outer wall of the mesh wire 9, and then the four fourth cylinders 801 are started at the same time, so that the pressing block 802 pushes the mesh wire 9, so that the middle part of the mesh wire 9 is aligned with the limit block 303, and then the fourth cylinder 801 is contracted, and the two second cylinders 202a are started at the same time, and the second cylinders 202a drive the corresponding former 203 to rotate, so that the former 203 bends the mesh wire 9 , then the two second cylinders 202a contract simultaneously, so that the former 203 returns to its original position, and then the third cylinder 301 contracts, so that the limit block 303 returns to its original position, and then the grid wire 9 is taken out to complete the bending process of the grid wire 9; wherein, for grid wires 9 of different widths, the distance between the two first movable plates 5 is adjusted by the first cylinder 6, and the two movable plates drive the corresponding first bending mechanisms 2 to move, thereby realizing the adjustment of the distance between the two groups of first bending mechanisms 2, so as to adapt to grid wires 9 of different widths. Therefore, the utility model can bend wires of different widths and has a wide applicability.

[0020] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. An intermediate bending device for a car seat back mesh, comprising a frame (1), two sets of first bending mechanisms (2) and a second bending mechanism (3), characterized in that: A first slide rail (4) is installed on the frame (1), and two groups of the first bending mechanisms (2) are symmetrically installed on the first slide rail (4) through first movable plates (5), respectively. A first cylinder (6) is installed on the frame (1), and the output shaft of the first cylinder (6) is connected to the first movable plate (5), and the second bending mechanism (3) is connected to the first bending mechanism (2) through bolts.

2. The intermediate bending device for the automobile seat back mesh according to claim 1, characterized in that: The first bending mechanism (2) comprises a fixed seat (201), a driving assembly (202), a plurality of formers (203) and a limiting column (204), wherein the limiting column (204) corresponds to the formers (203) one by one, the formers (203) are connected to the driving assembly (202), the formers (203) are rotatably connected to the fixed seat (201), and the limiting column (204) is fixedly connected to the fixed seat (201).

3. The intermediate bending device for the automobile seat back mesh according to claim 2, characterized in that: The driving assembly (202) comprises a second cylinder (202a), a second movable plate (202b), a second slide rail (202c) and a rack (202d); the second movable plate (202b) is connected to the output shaft of the second cylinder (202a); the second movable plate (202b) is slidably connected to the second slide rail (202c); and the rack (202d) is fixedly connected to the second movable plate (202b).

4. The intermediate bending device for the automobile seat back mesh according to claim 3, characterized in that: A gear (7) is installed at the bottom of each former (203), and each gear (7) is meshed with the rack (202d).

5. The intermediate bending device for the grid of the automobile seat back according to claim 1, characterized in that: The second bending mechanism (3) comprises a third cylinder (301), a push rod (302) and a plurality of limit blocks (303); the plurality of limit blocks (303) are arranged in an array on the push rod (302); and the push rod (302) is connected to an output shaft of the third cylinder (301).

6. The intermediate bending device for the automobile seat back mesh according to claim 1, characterized in that: It also includes a positioning mechanism (8), the positioning mechanism (8) including a fourth cylinder (801) and a pressure block (802), the pressure block (802) being connected to the output shaft of the fourth cylinder (801).

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