Chair, chair component, and assembly method and assembly apparatus thereof

Abstract

The application discloses a chair, a chair component, and an assembling method and equipment thereof. The chair component comprises a mesh frame and a frame body. When the mesh frame and the frame body are assembled, the frame body is first bent to change the shape of the top of the frame body and the opening direction of the embedding groove. Then, the embedding part of the annular support is inserted into the embedding groove after deformation, the four peripheral edges of the mesh are wrapped around the flange part of the frame body and enter the embedding groove, and the outer wrapping part of the annular support is wrapped outside the flange part of the frame body. Then, the frame body is released, and after the frame body returns to the original shape, the annular support is supported from inside to outside, and the outer wrapping part of the annular support and the outer mesh of the flange part of the frame body clamp the mesh passing between them. The above scheme can effectively improve the assembling efficiency and success rate of the chair component and reduce the assembling cost.

Description

Technical Field

[0001] This invention relates to the fields of furniture technology and assembly equipment technology, and in particular to a chair, chair components, assembly method and assembly equipment thereof. Background Technology

[0002] In existing chair structures, the chair components with mesh fabric are mainly attached to the frame by a groove on the surface of the frame, using only a strip or a clamping mechanism. As a result, the connection is not secure. When a user sits or leans against the mesh fabric, the mesh fabric will shift at the point of connection with the frame due to the weight. Consequently, the mesh fabric will loosen over time, reducing the comfort of sitting or leaning against it.

[0003] Patent document CN219845734U discloses a chair and its components and a mesh frame, including a mesh fabric, an annular support, and a frame. The annular support is integrally connected to the four edges of the mesh fabric by insert injection molding. The annular support has an integrally formed insert portion extending from the outside to the inside, which is annular. The top of the frame has an integrally formed flange portion extending from the inside to the outside, which is annular, thus forming an annular groove between the frame body and the flange portion. The insert portion of the annular support is embedded and fixed in the groove. The four edges of the mesh fabric wrap around the flange portion of the frame body and enter the groove. The outer part of the annular support surrounds the outside of the flange portion of the frame body, and the mesh fabric passes through the two and is clamped.

[0004] In the existing technology, since the insert of the ring bracket is inserted into the groove of the frame from the outside in, and since the mesh cloth tightens the ring bracket, the ring bracket and the frame must fit tightly to be combined into one unit to achieve the effect of using a headrest, backrest or seat; therefore, it is more difficult for workers to assemble chair parts, and it is time-consuming and inefficient. Summary of the Invention

[0005] To address the problem of difficult assembly of chair components in existing technologies, the present invention aims to provide a chair, chair components, assembly method and assembly equipment thereof. This solution can reduce the assembly difficulty of chair components, improve the assembly efficiency of chair components, effectively reduce assembly time, and reduce the cost of chair production.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a method for assembling a chair component, the chair component including a mesh frame and a frame body; the mesh frame including a mesh and an annular support, the annular support having an annular insert extending from the outside to the inside, and an annular outer covering extending from the bottom to the top; the four edges of the mesh are fixed to the insert, and the four edges of the mesh are located inside the outer covering; the top of the frame body has an annular flange extending from the inside to the outside, thereby forming an annular groove between the frame body and the flange; When assembling the mesh frame and the frame body, first bend the frame body to change the shape of the top of the frame body and the orientation of the slot opening; then insert the insert of the ring bracket into the deformed slot, the four edges of the mesh cloth wrap around the flange of the frame body and enter the slot, and the outer part of the ring bracket surrounds the outside of the flange of the frame body; then release the frame body, and after the frame body returns to its original shape, the ring bracket is supported from the inside out, and the outer part of the ring bracket and the outer mesh cloth of the flange of the frame body will be clamped by the mesh cloth passing between them.

[0007] Preferably, the lower surface of the ring bracket is provided with a locking protrusion, and the frame is provided with a locking hook in the groove; after the mesh frame and the frame are assembled, the flange pushes the outer wrapping part, so that the locking hook holds the locking protrusion located on its inner side.

[0008] An assembly device is provided to perform the assembly method of the chair components described above.

[0009] Preferably, the assembly includes a worktable and a locking plate and a first flap mounted on the worktable. The locking plate is positioned on the worktable and can fix the frame to the worktable during chair assembly. The first flap is symmetrically positioned on both sides of the locking plate and is mounted on the worktable at a variable angle. During chair assembly, the two first flaps can clamp the frame, causing the top of the frame to deform.

[0010] Preferably, the two first flaps are symmetrically arranged on both sides of the lock plate.

[0011] Preferably, a hinge shaft is installed on the worktable, and the hinge shaft is located between two first flaps, both of which are hinged to the hinge shaft.

[0012] Preferably, the system also includes a first positioning seat, a second positioning seat, a third positioning seat, and a fourth positioning seat, which are arranged sequentially and form a positioning space that matches the frame. The first and third positioning seats are fixed on the worktable, while the second and fourth positioning seats are fixed on the second flaps of the two sets of deformation mechanisms.

[0013] Preferably, the assembly also includes multiple pressure plates arranged around the positioning space; during chair component assembly, the pressure plates can move closer to the positioning space to press down the already inserted annular bracket.

[0014] A chair component includes a mesh frame and a frame body. The mesh frame includes an annular support and a mesh fabric. The four edges of the mesh fabric are embedded in the annular support, and the annular support is integrally and fixedly connected to the four edges of the mesh fabric by means of insert injection molding. The component also includes a frame body, which is a frame for a seat, backrest, lumbar support or headrest. The top of the frame body is covered by the mesh fabric, and the annular support is nested on the outer side of the top of the frame body.

[0015] A chair comprising the aforementioned chair components.

[0016] The beneficial effects of the technical solution of the present invention are as follows: the above solution changes the angle of the annular groove on the outer side of the frame by bending the frame, thereby making the annular frame easy to install on the frame, and the pressure plate can maintain the relative position between the annular bracket and the frame, ensuring that the annular bracket is always fastened to the frame during the frame restoration process, thereby improving the assembly efficiency and success rate of chair parts and reducing assembly costs. Attached Figure Description

[0017] Figure 1 Schematic diagram of the assembly equipment Figure 1 ; Figure 2 Schematic diagram of the assembly equipment Figure 2 ; Figure 3 Schematic diagram of the assembly equipment Figure 3 ; Figure 4 Schematic diagram of the assembly equipment Figure 4 ; Figure 5 Schematic diagram of the assembly equipment Figure 5 ; Figure 6 Schematic diagram of the connection structure of the deformation mechanism, clamping mechanism and locking mechanism Figure 1 ; Figure 7 Schematic diagram of the connection structure of the deformation mechanism, clamping mechanism and locking mechanism Figure 2 ; Figure 8 Schematic diagram of the locking mechanism Figure 1 ; Figure 9 Schematic diagram of the locking mechanism Figure 2 ; Figure 10 This is a schematic diagram of the structure of the first clamping block; Figure 11This is a schematic diagram of the second clamping block; Figure 12 This is a schematic diagram of the third clamping block; Figure 13 This is a schematic diagram of the fourth clamping block; Figure 14 This is a schematic diagram of the fifth clamping block; Figure 15 This is a schematic diagram of the sixth clamping block; Figure 16 This is a schematic diagram of the structure of the seventh clamping block; Figure 17 This is a schematic diagram of the eighth clamping block; Figure 18 This is a structural diagram of the chair components; Figure 19 for Figure 18 BB cross-sectional view; Figure 20 for Figure 19 Enlarged view of point I; Figure 21 This is a 3D view of the chair components.

[0018] Figure 22 An exploded view of the chair components; Figure 23 One of the three-dimensional views of the mesh frame; Figure 24 This is the second 3D view of the mesh frame.

[0019] Figure label: 1. Mesh fabric; 101. The four edges of the mesh fabric; 2. Ring bracket; 201. Outer part; 202. Embedded part; 203. Snap-fit ​​protrusion; 204. Groove; 3. Frame; 301. Frame body; 302. Flange; 303. Snap-fit ​​hook; 304. Slot; 305. Window; 51. Workbench; 511. First mounting plate; 512. Second mounting plate; 52. Deformation mechanism; 521. Second cylinder; 522. Hinge shaft; 523. First flap; 524. Slide rail; 525. Slider; 526. Second flap; 527. Second limiting plate; 528. Reset component; 529. Second connecting plate; 53. Locking mechanism; 531. First connecting plate; 532. First limiting plate; 5321. Sliding hole; 533. First cylinder; 536. Locking plate; 5361. Limiting part; 541. First positioning seat; 5411. First pad; 542. Second positioning seat; 5421. First mounting bracket; 543. Third positioning seat; 5431. Third pad; 544. Fourth positioning seat; 5441. Second mounting bracket; 551, First pressure plate; 5511, Third cylinder; 5512, First top plate; 5513, First pressing part; 552, Second pressure plate; 5521, Seventh cylinder; 5522, Second pressing part; 553, Third pressure plate; 5531, Fourth cylinder; 5532, Third pressing part; 554, Fourth pressure plate; 5541, Eighth cylinder; 5542, Fourth pressing part; 555, Fifth pressure plate; 5551, Fifth cylinder; 5552, Second top plate; 5553, Fifth pressing part; 556, Sixth pressure plate; 5561, Ninth cylinder; 5562, Sixth pressing part; 557, Seventh pressure plate; 5571, Sixth cylinder; 5572, Seventh pressing part; 558, Eighth pressure plate; 5581, Tenth cylinder; 5582, Eighth pressing part. Implementation

[0020] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0021] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more, unless explicitly defined otherwise.

[0023] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0024] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0025] For ease of description, this invention defines "upper, lower, inner, and outer" as the state in which the mesh fabric is installed on the frame of the chair component: The side of the mesh that comes into contact with the human body is defined as "upper," meaning the surface of the mesh that contacts the human body is the upper surface. Conversely, the back side of the mesh that is opposite the upper surface is defined as "lower." The four edges of the mesh fabric are defined as "outer", and the center of the mesh fabric is defined as "inner". Example

[0026] like Figures 18 to 24 The illustrated mesh frame for a chair includes a mesh 1 and an annular support 2. The four edges 101 of the mesh are embedded in the annular support 2, and the annular support 2 is integrally and fixedly connected to the four edges 101 of the mesh by means of insert injection molding.

[0027] In this embodiment, as Figure 18 , Figure 19 and Figure 22 As shown, the annular bracket 2 has an integrally formed insert portion 202 extending from the outside to the inside. The insert portion 202 is annular, and the four edges 101 of the mesh fabric are inserted and fixed in the insert portion 202. The lower surface of the annular bracket 2 has an integrally formed locking protrusion 203, which is annular. The lower surface of the annular bracket 2 also has an integrally formed groove 204, which is annular.

[0028] In this embodiment, the annular support 2 has an integrally formed outer covering 201 extending from bottom to top. The outer covering 201 is annular, and the junction of the four edges of the mesh 1 with the annular support 2 is located inside the outer covering 201.

[0029] In this embodiment, the mesh frame is in its natural state before installation and use, such as... Figure 18 As shown, the mesh fabric 1 is in a relaxed state.

[0030] like Figures 19 to 24 The chair component shown includes a frame 3, which serves as the frame for the seat, backrest, lumbar support, or headrest. It also includes a mesh frame for the chair as described above, with the mesh 1 covering the top of the frame 3, and an annular bracket 2 nested on the outer side of the top of the frame 3. In this embodiment, the frame is the frame for the seat.

[0031] The mesh fabric and the ring-shaped support are integrally molded using an insert injection molding process to form the mesh frame. This not only enables automated continuous production but also ensures the accurate positioning of the mesh fabric's edges, thus guaranteeing the appropriate slack. The mesh frame is then nested into the chair component's frame from the outside in. This ensures the mesh fabric is fully tensioned after installation, facilitating manufacturing and installation. Furthermore, when the mesh fabric supports a person, the force it bears is converted into a force that expands the ring-shaped support. The ring-shaped support itself is strong enough to withstand the mesh fabric's stress, further ensuring the mesh fabric's tension and lifespan. This reduces the workload and difficulty of mesh fabric installation, significantly lowers manufacturing costs, and fully guarantees production quality.

[0032] In this preferred embodiment, such as Figure 20 , Figure 22 , Figure 23 and Figure 24 As shown, the top of the frame 3 has an integrally formed flange portion 302 extending from the inside out. The flange portion 302 is annular, thus forming an annular groove 304 between the frame body 301 and the flange portion 302. The insert portion 202 of the annular bracket 2 is embedded and fixed in the groove 304. The four edges 101 of the mesh fabric wrap around the flange portion 302 of the frame 3 and enter the groove 304. The outer part 201 of the annular bracket 2 surrounds the outside of the flange portion 302 of the frame 3, and the mesh fabric 1 passes through the two and is clamped. In this way, the edge of the mesh fabric undergoes multiple bending and nesting clamping during the process of wrapping the top of the frame, which not only increases the tension of the mesh fabric, but also increases the structural strength of the annular bracket. Part of the force borne by the mesh fabric is borne by the flange portion of the frame, further ensuring the tension and service life of the mesh fabric.

[0033] In this preferred embodiment, such as Figure 20As shown, the frame 3 has multiple hook parts 303 integrally formed in the groove 304. The hook parts 303 enter the groove 204 of the annular bracket 2 and are engaged with the protrusion 203. In this way, not only can the bonding and fixing strength between the annular bracket and the frame be increased, but the embedded part 202 of the annular bracket can also be prevented from falling out of the groove. This can also prevent the annular bracket from being stretched or twisted and deformed, so that the force on the mesh can be distributed by multiple buckle structures, further ensuring the tension and service life of the mesh.

[0034] In this preferred embodiment, the four edges of the mesh fabric 1 extend from the inner side of the embedding portion 202 into the groove 204. This not only strengthens the connection between the mesh fabric and the annular support, but also ensures that the edges of the mesh fabric are deeply embedded in the groove after the mesh fabric frame is installed onto the frame of the chair component, preventing the mesh fabric and the annular support from separating.

[0035] In this preferred embodiment, multiple hook portions 303 are evenly distributed on the lower side wall of the groove 304, and the flange portion 302 is provided with openings 305 corresponding to the positions of the hook portions 303, so as to facilitate the integral forming of the hook portions on the frame.

[0036] The present invention also discloses a chair, including a chair component as described above.

[0037] This invention also discloses a method for assembling a chair device. When assembling the mesh frame and the frame body, the frame body 3 is first bent to change the shape of its top and the orientation of the opening of the groove 304. Then, the insert portion 202 of the annular bracket 2 is inserted into the deformed groove 304. The four edges 101 of the mesh 1 wrap around the flange portion 302 of the frame body 3 and enter the groove 304. The outer covering portion 201 of the annular bracket 2 surrounds the outside of the flange portion 302 of the frame body 3. Then, the frame body 3 is released. After the frame body 3 returns to its original shape, the annular bracket 2 is raised from the inside out. The outer covering portion 201 of the annular bracket 2 and the outer mesh 1 of the flange portion 302 of the frame body 3 clamp the mesh 1 passing between them. After the mesh frame and the frame body 3 are assembled, the flange portion 302 pushes against the outer covering portion 201, causing the hook portion 303 to hold the hook protrusion 203 located inside it. The present invention also discloses an assembly device, such as Figures 1 to 9As shown, the assembly equipment uses the above-described assembly method to assemble chair components. The equipment includes a workbench 51, on which are mounted a first positioning seat 541, a second positioning seat 542, a third positioning seat 543, and a fourth positioning seat 544 arranged sequentially. These four positioning seats enclose the frame 3, forming a positioning space that matches the frame 3. Positioning seats 543 are positioned opposite each other and fixed on the workbench 51. A locking mechanism is provided between the first positioning seat 541 and the third positioning seat 543. The locking mechanism, the first positioning seat 541 and the third positioning seat 543 cooperate to fix the frame 3. The second positioning seat 542 and the fourth positioning seat 544 are positioned opposite each other. The second positioning seat 542 and the fourth positioning seat 544 are respectively installed on two oppositely positioned deformation mechanisms. The deformation mechanisms can drive the second positioning seat 542 and the fourth positioning seat 544 to flip, fold the frame 3 placed in the positioning space, and change the opening orientation of the annular groove 304 on the frame 3. With this configuration, the opening of the slot of the device faces in a direction that facilitates the insertion part 202 on the inner side of the annular bracket to be inserted into the annular slot of the frame 3 from the outside in, thereby improving the assembly efficiency of the chair parts, reducing the assembly cost and assembly difficulty of the chair parts, and improving the assembly accuracy of the chair parts.

[0038] In this preferred embodiment, such as Figure 22 As shown, the frame 3 has crisscrossing connecting ribs 306 inside; as Figure 8 and Figure 9As shown, the locking mechanism 53 includes a locking plate 536 that is slidably mounted on the worktable 51. The locking plate 536 has a hook-shaped limiting part 5361 protruding from it. The limiting part 5361 can pass through the gap between the multiple connecting ribs 306. After the locking plate 536 is moved, the limiting part 5361 can hook the connecting ribs 306 of the frame 3 in the positioning space, thereby preventing the frame 3 from moving up and down. Specifically, a first mounting plate 511 is fixed to the top of the workbench 51. Both the first positioning seat 541 and the third positioning seat 543 are fixed to the first mounting plate 511. A first connecting plate 531 is also fixed to the first mounting plate 511, located between the first positioning seat 541 and the third positioning seat 543. A first limiting plate 532 is fixed to the first connecting plate 531. A sliding hole 5321 is provided on the first limiting plate 532. A locking plate 536 slides into the sliding hole 5321. A limiting part 5361 extends out from the sliding hole 5321. The bottom of the locking plate 536 is connected to the cylinder body of the first cylinder 533. The telescopic rod of the first cylinder 533 is connected to the first connecting plate 531. With this configuration, the locking plate 536 can be driven by the first cylinder 533 to adjust the position of the limiting part 5361, thereby hooking the frame 3.

[0039] In this preferred embodiment, the locking plate 536 is located in the center of the positioning space, and the second positioning seat 542 and the fourth positioning seat 544 are symmetrically located on both sides of the locking plate 536. With this arrangement, the first positioning seat 541, the third positioning seat 543 and the locking plate 536 fix the middle part of the frame 3, thereby making the bent part of the frame 3 symmetrically arranged.

[0040] To facilitate bending of frame 3, in this embodiment, as follows: Figures 3 to 5 As shown, the deformation mechanism includes a first flap 523 and a second cylinder 521 for driving the first flap 523 to flip. The first flaps 523 of the two deformation mechanisms are symmetrically arranged on both sides of the locking plate 536. The first flap 523 is hinged to the first mounting plate 511. The second positioning seat 542 and the fourth positioning seat 544 are respectively mounted on the two first flaps 523.

[0041] In this preferred embodiment, a second mounting plate 512 is also fixed on the workbench 51. The second mounting plate 512 is located below the first mounting plate 511. One end of the second cylinder 521 extends from the side of the first mounting plate 511 and is hinged to the first flip plate 523 through the first connecting seat. The other end of the second cylinder 521 is hinged to the second mounting plate 512 through the second connecting seat. Further preferred, such as Figure 8 and Figure 9As shown, a second connecting plate 529 is fixed on the first mounting plate 511, and a hinge shaft 522 is mounted on the second connecting plate 529. The hinge shaft 522 is located below the locking plate 536, and the first flap 523 is hinged to the hinge shaft 522 through a hinge lug. This arrangement allows the frame 3 to bend symmetrically.

[0042] To better improve the adaptability of the assembly equipment and the frame 3, and to prevent the frame 3 from breaking due to excessive flipping angle; in this embodiment, as follows: Figures 1 to 7 As shown, a second flap 526 is slidably mounted on the first flap 523. A second positioning seat 542 and a fourth positioning seat 544 are respectively fixed to the second flap 526 of the two deformation mechanisms. The first flap 523 and the second flap 526 are connected by a reset component 528, allowing the second flap 526 to automatically reset after the chair components are assembled. Specifically, two front-to-back slide rails 524 are mounted on the first flap 523, and two front-to-back sliders 525 are mounted on the second flap 526. The slide rails 524 and sliders 525 are slidably connected. More preferably, the reset component 528 includes a gas spring and a tension spring, etc.

[0043] To ensure the accuracy of the connection between the annular bracket and the frame 3, in this embodiment, as follows: Figures 1 to 7 As shown, a clamping mechanism is also installed on the workbench 51. The clamping mechanism includes multiple pressure plates arranged around the positioning space. The pressure plates are movably installed on the workbench 51. After the insert 202 of the ring bracket 2 is inserted into the groove 304 of the bent frame 3, the pressure plate can move towards the ring bracket 2, thereby clamping the assembled chair parts. This improves the positioning accuracy of the ring bracket 2 and the frame 3. Furthermore, the actions of the multiple pressure plates can be sequential, ensuring that the connected parts disengage during the connection process of the ring bracket 2 and the frame 3, making the assembly process of the chair parts smoother and more stable.

[0044] In this preferred embodiment, such as Figures 1 to 7As shown, the pressure plate includes a first pressure plate 551, a third pressure plate 553, a fifth pressure plate 555, and a seventh pressure plate 557. The first pressure plate 551, the third pressure plate 553, the fifth pressure plate 555, and the seventh pressure plate 557 are arranged around the positioning space. The first pressure plate 551 is slidably mounted on the first positioning seat 541, the third pressure plate 553 is slidably mounted on the second positioning seat 542, the fifth pressure plate 555 is slidably mounted on the third positioning seat 543, and the seventh pressure plate 557 is slidably mounted on the fourth positioning seat 544. When assembling the chair components, the pressure plate can move from the outside to the inside to press the annular bracket 2 and the frame 3 together. Specifically, the first positioning seat 541 is fixed to the worktable 51 by a first pad 5411. A third cylinder 5511 is mounted on the first pad 5411, and the telescopic end of the third cylinder 5511 extends from the first pad 5411. A first top plate 5512 is fixed to the telescopic end of the third cylinder 5511, and a first pressure plate 551 is fixed to the first top plate 5512. A first mounting bracket 5421 is fixed to the second positioning seat 542, and a fourth cylinder 5531 is mounted on the first mounting bracket 5421. A third pressure plate 553 is fixed to the telescopic end of the fourth cylinder 5531. Above; the third positioning seat 543 is fixed to the worktable 51 by the third pad 5431. The fifth cylinder 5551 is installed on the third pad 5431. The telescopic end of the fifth cylinder 5551 extends from the third pad 5431. The second top plate 5552 is fixed on the telescopic end of the fifth cylinder 5551. The fifth pressure plate 555 is fixed on the second top plate 5552. The fourth positioning seat 544 is fixed with the second mounting bracket 5441. The sixth cylinder 5571 is installed on the second mounting bracket 5441. The seventh pressure plate 557 is fixed on the telescopic end of the sixth cylinder 5571.

[0045] In this preferred embodiment, such as Figure 6 As shown, the pressure plate also includes a second pressure plate 552, a fourth pressure plate 554, a sixth pressure plate 556, and an eighth pressure plate 558. The second pressure plate 552, fourth pressure plate 554, sixth pressure plate 556, and eighth pressure plate 558 are all arc-shaped. The second pressure plate 552 and fourth pressure plate 554 are both mounted on a first mounting bracket 5421 that is swayably mounted on the second positioning seat 542. A third pressure plate 553 is located between the second pressure plate 552 and the fourth pressure plate 554. The sixth pressure plate 556 and eighth pressure plate 558 are both mounted on a second mounting bracket 5441 that is swayably mounted on the fourth positioning seat 544. A seventh pressure plate 557 is located between the sixth pressure plate 556 and the eighth pressure plate 558. This arrangement allows the arc-shaped pressure plates to press against the connecting structure at the corner of the chair component. Specifically, as shown... Figure 3 , Figure 4 and Figure 5As shown, a seventh cylinder 5521 is mounted on the first mounting bracket 5421. The telescopic end of the seventh cylinder 5521 moves up and down. The second pressure plate 552 is hinged to the telescopic end of the seventh cylinder 5521. The two ends of the first connecting rod are respectively hinged to the second pressure plate 552 and the cylinder body of the seventh cylinder 5521. An eighth cylinder 5541 is mounted on the first mounting bracket 5421. The telescopic end of the eighth cylinder 5541 moves up and down. The fourth pressure plate 554 is hinged to the telescopic end of the eighth cylinder 5541. The two ends of the second connecting rod are respectively hinged to the fourth pressure plate 554 and the cylinder body of the eighth cylinder 5541. The second mounting bracket 5441 is equipped with a ninth cylinder 5561. The telescopic end of the ninth cylinder 5561 moves up and down. The sixth pressure plate 556 is hinged to the telescopic end of the ninth cylinder 5561. The two ends of the third connecting rod are respectively hinged to the cylinder body of the sixth pressure plate 556 and the cylinder body of the ninth cylinder 5561. The second mounting bracket 5441 is equipped with a tenth cylinder 5581. The telescopic end of the tenth cylinder 5581 moves up and down. The eighth pressure plate 558 is hinged to the telescopic end of the tenth cylinder 5581. The two ends of the fourth connecting rod are respectively hinged to the cylinder body of the eighth pressure plate 558 and the cylinder body of the tenth cylinder 5581.

[0046] Further preferred, such as Figures 10 to 17 As shown, a first pressing part 5513 protrudes from the first pressure plate 551, and the first pressing part 5513 forms an angle with the first pressure plate 551, thereby pressing the annular bracket 2 tightly from the outside and top of the first pressure plate 551. Furthermore, the bottom surface of the first pressing part 5513 is an upward-opening arc shape, which can better match the frame 3 and the ring during the bending process.

[0047] The second pressure plate 552 has a protruding second pressing part 5522. The second pressing part 5522 forms an angle with the second pressure plate 552, thereby enabling the second pressure plate 552 to press the annular bracket 2 from the outside and the top of the annular bracket 2.

[0048] The third pressure plate 553 has a protruding third pressing part 5532, which is arc-shaped and forms an angle with the third pressure plate 553, thereby pressing the annular bracket 2 tightly from the outside and top of the third pressure plate 553. Furthermore, the bottom surface of the third pressing part 5532 is an upward-opening arc shape, which can better match the frame 3 and the ring during the bending process.

[0049] The fourth pressure plate 554 has a protruding fourth pressing part 5542. The fourth pressing part 5542 is arc-shaped and forms an angle with the fourth pressure plate 554, thereby causing the fourth pressure plate 554 to press the annular bracket 2 from the outside and the top of the annular bracket 2.

[0050] The fifth pressure plate 555 has a protruding fifth pressing part 5553, which is arc-shaped and forms an angle with the fifth pressure plate 555, thereby pressing the ring bracket 2 from the outside and top of the ring bracket 2. Furthermore, the bottom surface of the fifth pressing part 5553 is an arc shape with an opening facing upward, which can better match the frame 3 and the ring during the bending process.

[0051] The sixth pressure plate 556 has a protruding sixth pressing part 5562. The sixth pressing part 5562 is arc-shaped and forms an angle with the sixth pressure plate 556, thereby causing the sixth pressure plate 556 to press the annular bracket 2 from the outside and the top of the annular bracket 2. The seventh pressure plate 557 has a protruding seventh pressing part 5572, which is arc-shaped and forms an angle with the seventh pressure plate 557, thereby pressing the annular bracket 2 from the outside and top of the seventh pressure plate 557. Furthermore, the bottom surface of the seventh pressing part 5572 is an arc shape with an upward opening, which can better match the frame 3 and the ring during the bending process.

[0052] The eighth pressure plate 558 has an eighth pressing part 5582 protruding from it. The eighth pressing part 5582 is arc-shaped and forms an angle with the eighth pressure plate 558, thereby causing the eighth pressure plate 558 to press the annular bracket 2 from the outside and the top of the annular bracket 2.

[0053] The present invention also discloses a method for assembling chair components using the above-mentioned assembly equipment. When assembling the annular support 2 and the frame 3 using the above-mentioned equipment, Step 1): Fix the middle part of the frame 3 to the workbench 51 using the locking plate 536; wherein the frame 3 is located between the two top plates, and the two flip plates are symmetrically arranged below the frame 3; Step 2): The two flaps flip up to form an angle with the opening facing upwards and bend the frame 3 to change the opening of the groove 304; Step 3): Insert all the embedding parts 202 on the ring bracket 2 into the groove 304 of the frame 3; as the embedding parts 202 are gradually inserted into the groove 304, multiple pressure plates press down on the outside of the ring bracket 2 one by one, pressing the already assembled embedding parts 202 into the groove 304. Step 4): The flip plate is reset, the frame 3 returns to its original state and the ring bracket 2 is tightened; then the pressure plate and top plate are reset, and the assembled chair parts are taken out.

[0054] Specifically, in step 1) above, the frame 3 is first placed in the 60 positioning space. The first positioning seat 541, the second positioning seat 542, the third positioning seat 543 and the fourth positioning seat 544 support the frame 3. The limiting part 5361 on the locking plate 536 extends out from between the connecting ribs 306 in the frame 3. The first cylinder 533 drives the locking plate 536 to move so that the limiting part 5361 hooks the connecting ribs 306 of the frame 3, thereby raising the height of the frame 3 on the worktable 51. In step 2) above, the second cylinder 521 drives the first flap 523 to rotate around the hinge shaft 522. The first flap 523 drives the second positioning seat 542 and the fourth positioning seat 544 mounted on it to move, thereby bending the left and right sides of the frame 3 upward and changing the orientation of the opening of the outer groove 304 of the frame 3. During the deformation of the frame 3, the second flap 526 can slide on the first flap 523 by pushing it through the positioning seat. When the second flap 526 slides, it compresses the reset piece 528. In step 3) above, during the process of inserting the insert 202 into the groove 304, the cylinder drives the pressure plate to press the part of the annular bracket 2 that has been inserted into the groove 304, and then the assembly of the annular bracket 2 and the frame 3 is completed; wherein, the pressure plate and the protruding pressing part on it can press the outer side and the upper side of the annular bracket 2. In step 4) above, the second cylinder 521 drives the first flip plate 523 to reset, the reset component 528 drives the second flip plate 526 to reset, the cylinder drives the pressure plate away from the positioning seat, the first cylinder 533 drives the locking plate to move and release the frame 3, and then the assembled chair parts are taken out.

[0055] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0056] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.

Claims

1. An assembly device, characterized in that: Includes a workbench (51) and a locking plate (536) and a first flap (523) mounted on the workbench (51), with a second flap (526) slidably mounted on the first flap (523); The locking plate (536) is set on the workbench (51) and can fix the frame (3) on the workbench (51) during the assembly of the chair parts; Two first flaps (523) are symmetrically arranged on both sides of the lock plate (536) and are mounted on the workbench (51) at a variable angle; when the chair parts are assembled, the two first flaps (523) can clamp the frame (3) so that the top of the frame (3) deforms; It also includes a first positioning seat (541), a second positioning seat (542), a third positioning seat (543), and a fourth positioning seat (544). The first positioning seat (541), the second positioning seat (542), the third positioning seat (543), and the fourth positioning seat (544) are arranged sequentially, and the first positioning seat (541), the second positioning seat (542), the third positioning seat (543), and the fourth positioning seat (544) enclose a positioning space that matches the frame (3); wherein the first positioning seat (541) and the third positioning seat (544) (543) is fixed on the workbench (51). The second positioning seat (542) and the fourth positioning seat (544) are respectively fixed on the two second flip plates (526). The two second flip plates (526) can drive the second positioning seat (542) and the fourth positioning seat (544) to flip, fold the frame (3) placed in the positioning space, and change the opening orientation of the annular groove (304) on the frame (3) so that the embedding part (202) on the inner side of the annular bracket can be inserted into the annular groove (304) of the frame (3) from the outside to the inside.

2. The assembly equipment according to claim 1, characterized in that: A hinge shaft (522) is installed on the workbench (51). The hinge shaft (522) is located between two first flaps (523), and both first flaps (523) are hinged to the hinge shaft (522).

3. The assembly equipment according to claim 1, characterized in that: It also includes multiple pressure plates, which are arranged around the positioning space; when the chair parts are assembled, the pressure plates can move closer to the positioning space to press down the already inserted ring bracket.

4. A method for assembling chair components, characterized in that: The chair component, using an assembly device as described in any one of claims 1 to 3, comprises a mesh frame and a frame body; The mesh frame includes a mesh (1) and an annular bracket (2). The four edges (101) of the mesh (1) are embedded in the annular bracket (2). The annular bracket (2) is fixedly connected to the four edges (101) of the mesh (1) by means of insert injection molding. The annular bracket (2) has an annular insert (202) extending from the outside to the inside and an annular outer covering (201) extending from the bottom to the top. The four edges (101) of the mesh (1) are fixed in the insert (202), and the four edges (101) of the mesh (1) are located inside the outer covering (201). The top of the frame (3) is provided with an annular flange (302) extending from the inside to the outside, thereby forming an annular groove (304) between the frame body (301) and the flange (302). When assembling the mesh frame and the frame body, first bend the frame body (3) to change the shape of the top of the frame body (3) and the orientation of the opening of the groove (304); then insert the embedding part (202) of the ring bracket (2) into the deformed groove (304), the four edges (101) of the mesh (1) wrap around the flange part (302) of the frame body (3) and enter the groove (304), and the outer part (201) of the ring bracket (2) surrounds the outside of the flange part (302) of the frame body (3); then release the frame body (3), and after the frame body (3) returns to its original shape, the ring bracket (2) is supported from the inside out, and the outer part (201) of the ring bracket (2) and the outer mesh (1) of the flange part (302) of the frame body (3) will clamp the mesh (1) passing between them.

5. The method for assembling a chair component according to claim 4, characterized in that: The lower surface of the ring bracket (2) is provided with a protrusion (203), and the frame (3) is provided with a hook (303) in the groove (304); after the mesh frame and the frame (3) are assembled, the flange (302) pushes the outer wrapping part (201) so that the hook (303) holds the protrusion (203) located inside it.

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