阅读说明：本技术 椅具框体安装网状布的辅助装置和方法 (Auxiliary device and method for mounting net-shaped cloth on chair frame ) 是由 王江林 王郑兴 科斯塔斯·特斯迪斯 于 2020-12-22 设计创作，主要内容包括：本发明公开了一种椅具框体安装网状布的辅助装置和方法,该辅助装置包括一用于摆放网状布的台面和一用于夹持固定椅具框体的夹持机构,台面位于夹持机构的下方,台面和/或夹持机构上下升降以实现两者相互靠拢或相互分离,台面和夹持机构都能够水平转动并且两者具有相同的转动轴线；夹持机构安装在夹持座上,包括设置在夹持座上左右相对的两个夹持部,以及驱动两个夹持部打开或夹紧的夹持驱动装置；本方案机器结合人工操作,提高了椅具框体包制网状布的生产质量和生产效率。(The invention discloses an auxiliary device and a method for mounting reticular cloth on a chair frame, wherein the auxiliary device comprises a table top for placing the reticular cloth and a clamping mechanism for clamping and fixing the chair frame, the table top is positioned below the clamping mechanism, the table top and/or the clamping mechanism are lifted up and down to realize mutual approaching or mutual separation of the table top and the clamping mechanism, both the table top and the clamping mechanism can horizontally rotate and have the same rotation axis; the clamping mechanism is arranged on the clamping seat and comprises two clamping parts which are arranged on the clamping seat and are opposite to each other left and right, and a clamping driving device for driving the two clamping parts to open or clamp; the machine of the scheme combines manual operation, and improves the production quality and the production efficiency of the chair framework for wrapping the reticular cloth.)

1. An auxiliary device for mounting netted cloth on a chair frame comprises a rack (1) and is characterized in that a table top (3) for placing the netted cloth and a clamping mechanism for clamping and fixing the chair frame are mounted on the rack (1), the table top (3) is positioned below the clamping mechanism, and the table top (3) and/or the clamping mechanism are driven by a corresponding driving device to lift up and down, so that the table top (3) and the clamping mechanism are mutually closed or separated, both the table top (3) and the clamping mechanism can horizontally rotate and have the same rotation axis; the clamping mechanism is arranged on the clamping seat (8) and comprises two clamping parts which are arranged on the clamping seat (8) and are opposite to each other left and right, and a clamping driving device (7) for driving the two clamping parts to open or clamp.

2. The auxiliary device of claim 1 for mounting net-shaped cloth on a frame of a chair, it is characterized in that the clamping part comprises a first clamping jaw (9) and a second clamping jaw (10), the first clamping jaw (9) is positioned at the outer side of the second clamping jaw (10), the upper part of the first clamping jaw (9) is hinged with the clamping seat (8), the upper parts of the first clamping jaws (9) are respectively extended to form inner extending ends, the inner extending ends of the two first clamping jaws (9) are respectively movably connected with the moving end (71) of the clamping driving device (7), the clamping driving device (7) can drive the lower ends of the two first clamping jaws (9) to be inwards folded or outwards separated, the second clamping jaw (10) is located on the inner side of the first clamping jaw (9), and the upper end of the second clamping jaw (10) is hinged to the first clamping jaw (9) and gives the second clamping jaw (10) a tendency to clamp the first clamping jaw (9) through an elastic device.

3. The auxiliary device for mounting the mesh cloth on the chair frame body is characterized in that the inner extending ends of the two first clamping jaws (9) are movably connected with the moving end (71) of the clamping driving device (7) through movable connecting rods (15) respectively, one end of each movable connecting rod (15) is hinged with the moving end (71) of the clamping driving device (7), and the other end of each movable connecting rod (15) is hinged with the inner extending end of the first clamping jaw (9).

4. The auxiliary device for mounting the mesh cloth on the frame of the chair as claimed in claim 2, wherein the clamping portion further comprises a connecting member (13), one end of the connecting member (13) is hinged to the second clamping jaw (10), and the connecting member (13) is fixed with a positioning column (14): when the positioning column (14) is abutted against the inner side of the first clamping jaw (9), the first clamping jaw (9) is separated from the second clamping jaw (10) so as to be conveniently placed into the chair frame body; when the positioning column (14) is not abutted against the inner side of the first clamping jaw (9), the first clamping jaw (9) and the second clamping jaw (10) are clamped under the action of the elastic device.

5. The auxiliary device for mounting the mesh cloth on the chair frame according to claim 1, wherein the clamping seat (8) is of a plate-shaped structure, the two clamping parts are respectively positioned at the left side and the right side of the bottom of the clamping seat (8), and a first positioning part (84) and a second positioning part (85) for positioning the chair frame are respectively arranged at the front side and the rear side of the bottom of the clamping seat (8).

6. The auxiliary device for installing the mesh cloth on the chair frame body according to the claim 1, characterized in that a fixed pulley (82) for steering the steel wire rope, a pull head (81) for pulling the end part of the steel wire rope and a pull rope cylinder (83) are arranged below the clamping seat (8), a T-shaped groove for clamping a positioning block at the end part of the steel wire rope is arranged on the pull head (81), and the pull head (81) is fixed at the moving end of the pull rope cylinder (83).

7. The auxiliary device for mounting the netted cloth for the frame body of the chair as claimed in claim 1, wherein the rotating base (4) is mounted on the upper portion of the frame (1) through a vertical rotating shaft, said holding means is mounted under the rotating base (4), correspondingly, the table top (3) is mounted on a lower rotating base, the lower rotating base is mounted on the frame (1) through a vertical rotating shaft, and the rotating base (4) and the table top (3) are horizontally rotated on the same axis.

8. The auxiliary device for mounting the mesh cloth on the chair frame body according to claim 7, wherein the rotating shaft of the rotating seat (4) and the rotating shaft of the table top (3) are respectively in transmission connection with the same transmission shaft (44) so as to realize synchronous rotation; the table top (3) is driven by the lifting driving device (2) to lift up and down; the clamping seat (8) is arranged at the lower end of the turning arm (6), and the turning arm (6) is arranged below the rotating seat (4) through a horizontal rotating shaft (61) and is driven by the turning driving mechanism to turn vertically.

9. The auxiliary device for mounting the mesh cloth on the chair frame according to claim 8, wherein the overturning driving mechanism comprises a sliding seat (41), an overturning cylinder (42), a rack (43) and a gear (63), the overturning arm (6) is fixed on a horizontal rotating shaft (61), the horizontal rotating shaft (61) is mounted on the rotating seat (4) through a bearing seat (62), the gear (63) is fixed on the horizontal rotating shaft (61), the sliding seat (41) is vertically and slidably connected with the rotating seat (4), and the rack (43) is fixed on the sliding seat (41) and is meshed with the gear (63) for transmission so as to drive the horizontal rotating shaft (61) and the overturning arm (6) to overturn. In the preferred embodiment, a guide sleeve is sleeved on the guide column of the rotating seat (4), and the guide sleeve is fixed on the sliding seat (41), so that the sliding seat (41) is connected with the rotating seat (4) in a vertical sliding manner.

10. A method for mounting a mesh cloth on a chair frame, characterized in that the method for mounting and fixing the mesh cloth on the chair frame (20) by using the auxiliary device as claimed in any one of claims 1 to 9 comprises the following steps:

1) laying mesh cloth on the table top (3), and installing and fixing the chair frame body (20) on the clamping mechanism;

2) the clamping mechanism and the table top (3) are mutually closed and press the chair frame body (20) and the reticular cloth up and down so as to fix the relative positions of the two;

3) the reticular cloth is wrapped and tightened on the chair frame body (20); a horizontal rotary table-board (3) and a chair frame body (20), wherein the peripheral edge part of the reticular cloth is fixed on the chair frame body (20) by nailing;

4) the clamping mechanism is opened, and the chair frame body (20) fixed with the reticular cloth is detached.

Technical Field

The invention relates to the technical field of furniture manufacturing, in particular to an auxiliary device and method for mounting mesh cloth on a chair frame.

Background

With the social progress, the quality requirements of the chairs are higher and higher, and chairs with various functions or required places are derived according to the requirements, while the chairs in the early stage only require practical functions for sitting, and besides the sitting function, the chairs also need to have unique appearance, ergonomic design, use of breathable materials, recumbent comfort and the like.

The mesh chair in the prior art comprises a frame body and mesh cloth, wherein the mesh cloth is tightly wrapped on the frame body and is fixed on the frame body through a pressing strip, a buckling piece or a fastening piece, but the manufacturing process of tightly fixing the mesh cloth on the frame body is generally finished manually and is limited by the operation experience and the operation level of workers, the tightness degree and the wrapping accuracy of the mesh cloth wrapped by the frame body are difficult to control, and the processing efficiency of the workers is low and greatly different.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide an auxiliary device and method for mounting mesh cloth on a chair frame, which combines manual operation to improve the production quality and production efficiency of the mesh cloth wrapped by the chair frame, and is convenient for improving the processing efficiency and quality of new employees.

In order to achieve the purpose, the invention adopts the following technical scheme:

an auxiliary device for mounting netted cloth on a chair frame comprises a rack (1), wherein a table top (3) for placing the netted cloth and a clamping mechanism for clamping and fixing the chair frame are mounted on the rack (1), the table top (3) is positioned below the clamping mechanism, and the table top (3) and/or the clamping mechanism are driven by a corresponding driving device to lift up and down, so that the table top (3) and the clamping mechanism are mutually closed or separated, the table top (3) and the clamping mechanism can horizontally rotate and have the same rotating axis; the clamping mechanism is arranged on the clamping seat (8) and comprises two clamping parts which are arranged on the clamping seat (8) and are opposite to each other left and right, and a clamping driving device (7) for driving the two clamping parts to open or clamp.

Preferably, the clamping part comprises a first clamping jaw (9) and a second clamping jaw (10), the first clamping jaw (9) is located on the outer side of the second clamping jaw (10), the upper portion of the first clamping jaw (9) is hinged to the clamping base (8), the upper portion of the first clamping jaw (9) extends inwards to form an inner extending end, the inner extending ends of the two first clamping jaws (9) are movably connected with a moving end (71) of the clamping driving device (7) respectively, so that the clamping driving device (7) can drive the lower ends of the two first clamping jaws (9) to be folded inwards or separated outwards, the second clamping jaw (10) is located on the inner side of the first clamping jaw (9), and the upper end of the second clamping jaw (10) is hinged to the first clamping jaw (9) and gives the second clamping jaw (10) a tendency of clamping the first clamping jaw (9) through an elastic device.

Preferably, the inner extending ends of the two first clamping jaws (9) are movably connected with the moving end (71) of the clamping driving device (7) through movable connecting rods (15), one end of each movable connecting rod (15) is hinged with the moving end (71) of the clamping driving device (7), and the other end of each movable connecting rod (15) is hinged with the inner extending end of the first clamping jaw (9).

Preferably, the clamping part further comprises a connecting piece (13), one end of the connecting piece (13) is hinged to the second clamping jaw (10), and a positioning column (14) is fixed on the connecting piece (13): when the positioning column (14) is abutted against the inner side of the first clamping jaw (9), the first clamping jaw (9) is separated from the second clamping jaw (10) so as to be conveniently placed into the chair frame body; when the positioning column (14) is not abutted against the inner side of the first clamping jaw (9), the first clamping jaw (9) and the second clamping jaw (10) are clamped under the action of the elastic device.

Preferably, the clamping seat (8) is of a plate-shaped structure, the two clamping parts are respectively positioned at the left side and the right side of the bottom of the clamping seat (8), and a first positioning component (84) and a second positioning component (85) for positioning the chair frame body are respectively arranged at the front side and the rear side of the bottom of the clamping seat (8).

Preferably, a fixed pulley (82) for steering the steel wire rope, a pull head (81) for pulling the end part of the steel wire rope and a rope pulling cylinder (83) are arranged below the clamping seat (8), a T-shaped groove for clamping a positioning block at the end part of the steel wire rope is formed in the pull head (81), and the pull head (81) is fixed at the moving end of the rope pulling cylinder (83).

Preferably, the upper part of the rack (1) is provided with a rotating seat (4) through a vertical rotating shaft, the clamping mechanism is arranged below the rotating seat (4), correspondingly, the table top (3) is arranged on a lower rotating seat, the lower rotating seat is arranged on the rack (1) through the vertical rotating shaft, and the rotating seat (4) and the table top (3) rotate horizontally along the same axis.

Preferably, the rotating shaft of the rotating seat (4) and the rotating shaft of the table top (3) are respectively in transmission connection with the same transmission shaft (44), so that synchronous rotation is realized; the table top (3) is driven by the lifting driving device (2) to lift up and down; the clamping seat (8) is arranged at the lower end of the turning arm (6), and the turning arm (6) is arranged below the rotating seat (4) through a horizontal rotating shaft (61) and is driven by the turning driving mechanism to turn vertically.

Preferably, the overturning driving mechanism comprises a sliding seat (41), an overturning cylinder (42), a rack (43) and a gear (63), the overturning arm (6) is fixed on a horizontal rotating shaft (61), the horizontal rotating shaft (61) is installed on a rotating seat (4) through a bearing seat (62), the gear (63) is fixed on the horizontal rotating shaft (61), the sliding seat (41) is connected with the rotating seat (4) in a vertical sliding mode, and the rack (43) is fixed on the sliding seat (41) and is in meshing transmission with the gear (63) so as to drive the horizontal rotating shaft (61) and the overturning arm (6) to overturn. In the preferred embodiment, a guide sleeve is sleeved on the guide column of the rotating seat (4), and the guide sleeve is fixed on the sliding seat (41), so that the sliding seat (41) is connected with the rotating seat (4) in a vertical sliding manner.

The method for installing the mesh cloth on the chair frame body (20) by adopting the auxiliary device comprises the following steps:

1) laying mesh cloth on the table top (3), and installing and fixing the chair frame body (20) on the clamping mechanism;

2) the clamping mechanism and the table top (3) are mutually closed and press the chair frame body (20) and the reticular cloth up and down so as to fix the relative positions of the two;

3) the reticular cloth is wrapped and tightened on the chair frame body (20); a horizontal rotary table-board (3) and a chair frame body (20), wherein the peripheral edge part of the reticular cloth is fixed on the chair frame body (20) by nailing;

4) the clamping mechanism is opened, and the chair frame body (20) fixed with the reticular cloth is detached.

The reticular cloth is woven reticular cloth, fibrous reticular cloth, non-fibrous reticular cloth, reticular leather, reticular cloth or synthetic cloth made of plastic material or rubber material, and corium cloth and various synthetic leathers. The seat frame may be a backrest frame, a cushion frame, an armrest frame, or any other frame structure used in a seat.

According to the technical scheme, the table board is used for placing and positioning the mesh-shaped cloth, the clamping mechanism is used for fixedly clamping and compressing the chair frame body, after the table board and the clamping mechanism are positioned, the table board and the clamping mechanism are close to each other so as to fix the relative positions of the mesh-shaped cloth and the chair frame body, and then the mesh-shaped cloth is wrapped and tightly fixed on the chair frame body.

Drawings

FIG. 1 is a schematic view of the structure of an auxiliary device according to embodiment 1;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

FIG. 3 is a schematic view of a structure of a chucking mechanism of embodiment 1;

FIG. 4 is a schematic view of the structure of an auxiliary device according to embodiment 2;

FIG. 5 is one of perspective views of the auxiliary device of embodiment 2 (with a frame removed);

FIG. 6 is a side view of the auxiliary device of embodiment 2 (with the frame removed);

FIG. 7 is a second perspective view of the auxiliary device of embodiment 2 (with the frame removed);

FIG. 8 is a partial structural view of an auxiliary device according to embodiment 2;

FIG. 9 is a side view of FIG. 8;

fig. 10 is a perspective view of fig. 8.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be considered as limiting the present invention.

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

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Example 1:

as shown in fig. 1 and 2, the auxiliary device for mounting the mesh cloth on the chair frame comprises a frame 1, wherein a table top 3 for placing the mesh cloth and a clamping mechanism for clamping and fixing the chair frame are mounted on the frame 1, the table top 3 is positioned below the clamping mechanism, and the table top 3 and/or the clamping mechanism are driven by a corresponding driving device to lift up and down, so that the table top 3 and the clamping mechanism are mutually closed or separated.

In this embodiment, mesa 3 is by the oscilaltion of lift drive arrangement 2 drive, and mesa 3 top is provided with grip slipper 8, upset arm 6 and rotates seat 4, rotates seat 4 and installs in frame 1 through vertical pivot and can the level rotate, and upset arm 6 passes through horizontal pivot to be installed and to rotate seat 4 below and can vertically overturn for the grip slipper 8 of the fixed chair framework of installation is fixed at upset arm 6 lower extreme, installs fixture on the grip slipper 8. Like this, grip slipper and fixture can outwards turn out so that the installation chair utensil framework, and fixture centre gripping chair utensil framework is inwards turned into behind the vertical setting, and fixture compresses tightly the location back with chair utensil framework and netted cloth and mesa, can synchronous revolution, and convenient manual work wraps up around the chair utensil framework and fixes.

In other embodiments, the invert arm and/or the swivel base may also be vertically movable to allow the tabletop 3 and the clamping mechanism to be moved toward or away from each other. Alternatively, in other embodiments, both the table 3 and the fixture may be raised and lowered to move toward and away from each other.

The rotating seat 4 can be driven by a motor or an air cylinder to horizontally rotate, or can be rotated by manual operation without a rotation driving device. The turnover arm 6 is driven by a motor or a cylinder to turn over vertically.

In order to facilitate the placing of the mesh cloth on the table top at the exact position, a light strip 11 is preferably arranged in the center of the table top 3; wherein, the center of the table-board 3 is provided with a cross-shaped through groove, and a lamp strip 11 is arranged in the through groove. And a standard frame line which is matched with the accurate placing position of the reticular cloth can be arranged on the table top.

In this embodiment, as shown in fig. 3, a clamping driving device 7 and two clamping portions opposite to each other on the left and right are disposed on the clamping base 8, each clamping portion includes a first clamping jaw 9 and a second clamping jaw 10, the first clamping jaw 9 is located on the outer side of the second clamping jaw 10, the upper portion of the first clamping jaw 9 is hinged to the clamping base 8, the upper portions of the first clamping jaws 9 extend to form inward extending ends, the inward extending ends of the two first clamping jaws 9 are respectively movably connected with a moving end 71 of the clamping driving device 7, so that the clamping driving device 7 can drive the lower ends of the two first clamping jaws 9 to inwardly close or outwardly separate, the second clamping jaw 10 is located on the inner side of the first clamping jaw 9, and the upper end of the second clamping jaw 10 is hinged to the first clamping jaw 9 and gives the second clamping jaw 10 a tendency to clamp the first clamping jaw 9 through an. Like this, rotate through centre gripping drive arrangement drive first clamping jaw and implement the centre gripping or loosen the chair framework, two first clamping jaws are used for centre gripping chair framework outside to compress the framework a small amount when the centre gripping, artifical parcel netted cloth is more laborsaving convenient like this, then, two second clamping jaws are used for centre gripping chair framework inboard, realize two clamping parts and do not centre gripping the both sides frame strip of framework, the centre gripping is firm difficult for shifting. When the chair frame is disassembled, the two second clamping jaws are firstly opened, the clamping driving device loosens the two first clamping jaws, and the frame is disassembled.

In this embodiment, the elastic device is a torsion spring 12, and in other embodiments, the elastic device may also be a compression spring, an elastic sheet, or another elastic object. The clamped driving device 7 is a cylinder or a motor. The inner extending ends of the two first clamping jaws 9 are movably connected with the moving end 71 of the clamping driving device 7 through a kidney-shaped hole and a pin respectively, for example, the moving end 71 of the clamping driving device 7 is provided with a pin, and the inner extending end of the first clamping jaw 9 is provided with a kidney-shaped hole which is sleeved on the pin, so that the movable connection is realized.

In this embodiment, the clamping portion further includes a connecting member 13, one end of the connecting member 13 is hinged to the second clamping jaw 10, and a positioning column 14 is fixed on the connecting member 13: when the positioning column 14 abuts against the inner side of the first clamping jaw 9, the first clamping jaw 9 and the second clamping jaw 10 are separated so as to clamp the chair frame body; when the positioning column 14 is not against the inner side of the first clamping jaw 9, the first clamping jaw 9 and the second clamping jaw 10 are clamped under the action of the elastic device. Thus, the chair frame is convenient to disassemble and assemble.

In the embodiment, the rack 1 is of a frame structure, the four sides of the table top 3 and the clamping seat 8 of the rack 1 are provided with stand columns, an operation area is formed between the four stand columns, and the four stand columns are provided with induction devices 5 for detecting whether objects or personnel are inserted into the operation area; the sensing device 5 is a correlation infrared sensor; the induction device 5 is in a strip shape; the induction device 5 is connected with a controller for controlling each cylinder and motor. Thus, when the sensing device 5 senses that an object or a human body enters the operation area, the controller prohibits the driving action of each cylinder and the motor so as to avoid personnel injury and production faults.

When the auxiliary device is used, the power supply of the lamp belt 11 is turned on, the mesh cloth is laid on the table top 3, the chair frame is installed and fixed on the clamping mechanism, the chair frame is slightly compressed, after the positions of the chair frame and the table top are positioned, the table top and the clamping seat are mutually closed, so that the relative positions of the mesh cloth and the chair frame are fixed, the mesh cloth is wrapped and tightened by manpower and fixed on the chair frame, then the clamping mechanism and the chair frame are turned out, the frame is detached, and the mesh cloth at the position of the clamping mechanism clamping frame is fixed by the manpower. The machine combines manual operation like this, can improve the production quality and the production efficiency of the netted cloth of chair framework package system greatly, is more convenient for improve new staff's machining efficiency and quality.

A method for installing netted cloth to the frame of chair, including the above-mentioned auxiliary device, the auxiliary device includes a mesa 3 used for putting netted cloth and a fixture used for grasping and fixing the frame of chair, the mesa 3 locates below fixture, mesa 3 and/or fixture go up and down to realize the mutual drawing together or mutual separation of the two; when the netted cloth is installed on the chair frame body, the netted cloth is laid on the table top 3, the chair frame body is installed and fixed on the clamping mechanism, then the clamping mechanism and the table top 3 are mutually closed and the chair frame body and the netted cloth are vertically compressed to fix the relative positions of the chair frame body and the netted cloth, then the netted cloth is wrapped and tightened by manpower and fixed on the chair frame body, then the clamping mechanism and the chair frame body are turned out, the chair frame body is detached, and then the netted cloth at the position of the clamping mechanism clamping frame body is fixed by the manpower.

Example 2:

as shown in fig. 4 to 7, the auxiliary device for mounting the mesh cloth on the chair frame comprises a frame 1, wherein a table top 3 for placing the mesh cloth and a clamping mechanism for clamping and fixing the chair frame are mounted on the frame 1, the table top 3 is positioned below the clamping mechanism, and the table top 3 and/or the clamping mechanism are driven by a corresponding driving device to lift up and down, so that the table top 3 and the clamping mechanism are mutually closed or separated, the table top 3 and the clamping mechanism can horizontally rotate and have the same rotation axis.

In this embodiment, as shown in fig. 5, a rotating base 4 is installed on the upper portion of the frame 1 through a vertical rotating shaft, the rotating base 4 includes an upper mounting plate and a lower mounting plate and a plurality of guide pillars fixed therebetween, and the clamping mechanism is installed below the rotating base 4. Correspondingly, the table top 3 is mounted on a lower rotary base comprising an upper and a lower mounting plate and a plurality of fixing columns fixed therebetween, the lower rotary base being mounted on the machine frame 1 by means of a vertical rotary shaft. Thus, the rotating seat 4 and the table board 3 rotate coaxially and horizontally, and workers can rotate the chair frame body to implement the installation and nailing operation of the reticular cloth. In the preferred embodiment, the rotating shaft of the rotating seat 4 and the rotating shaft of the table-board 3 are respectively in transmission connection with the same transmission shaft 44, so as to realize synchronous rotation to avoid displacement between the chair frame and the mesh cloth during horizontal rotation, and the rotating seat and the table-board are generally rotated manually or driven by a motor.

In this embodiment, as shown in fig. 6 and 7, the table top 3 is driven to move up and down by the lifting driving device 2, and the lifting driving device 2 is a cylinder. The lifting driving device 2 is fixed on the lower rotating seat, the moving end of the lifting driving device 2 is fixedly connected with the table top 3, a plurality of guide posts are arranged at the bottom of the table top 3, and correspondingly, guide sleeves which correspond to the guide posts one by one are arranged on the lower rotating seat.

In this embodiment, as shown in fig. 5 and 6, the clamping mechanism is installed on the clamping seat 8, the clamping seat 8 is installed at the lower end of the turning arm 6, and the turning arm 6 is installed below the rotating seat 4 through the horizontal rotating shaft 61 and is driven by the turning driving mechanism to turn vertically. Like this, grip slipper and fixture can outwards turn out so that the installation chair utensil framework, and fixture centre gripping chair utensil framework is inwards turned into behind the vertical setting, and fixture compresses tightly the location back with chair utensil framework and netted cloth and mesa, can also synchronous horizontal rotation, and convenient manual work wraps up around fixed to the chair utensil framework.

In this embodiment, as shown in fig. 8 to 10, the turnover driving mechanism includes a sliding seat 41, a turnover cylinder 42, a rack 43, and a gear 63, the turnover arm 6 is fixed on a horizontal rotating shaft 61, the horizontal rotating shaft 61 is installed on the rotating seat 4 through a bearing seat 62, the gear 63 is fixed on the horizontal rotating shaft 61, the sliding seat 41 and the rotating seat 4 are connected in a vertical sliding manner, and the rack 43 is fixed on the sliding seat 41 and is engaged with the gear 63 for transmission, so as to drive the horizontal rotating shaft 61 and the turnover arm 6 to turn over. In the preferred embodiment, the guide sleeve is sleeved on the guide post of the rotating seat 4 and fixed on the sliding seat 41, so that the sliding seat 41 and the rotating seat 4 are connected in a vertical sliding manner.

In other embodiments, the invert arm and/or the swivel base may also be vertically movable to allow the tabletop 3 and the clamping mechanism to be moved toward or away from each other. Alternatively, in other embodiments, both the table 3 and the fixture may be raised and lowered to move toward and away from each other.

In other embodiments, the rotary base 4 may be driven to rotate horizontally by a motor or an air cylinder, or may be rotated by manual operation without providing a rotation driving device. The turnover arm 6 is driven by a motor or a cylinder to turn over vertically.

In order to facilitate the placing of the mesh cloth on the table top at the exact position, a light strip 11 is preferably arranged in the center of the table top 3; wherein, the center of the table-board 3 is provided with a cross-shaped through groove, and a lamp strip 11 is arranged in the through groove. And a standard frame line which is matched with the accurate placing position of the reticular cloth can be arranged on the table top.

In this embodiment, as shown in fig. 8 and 10, a clamping driving device 7 and two clamping portions opposite to each other on the left and right are disposed on the clamping base 8, each clamping portion includes a first clamping jaw 9 and a second clamping jaw 10, the first clamping jaw 9 is located on the outer side of the second clamping jaw 10, the upper portion of the first clamping jaw 9 is hinged to the clamping base 8, the upper portions of the first clamping jaws 9 extend inward to form inward extending ends, the inward extending ends of the two first clamping jaws 9 are movably connected to the moving end 71 of the clamping driving device 7, so that the clamping driving device 7 can drive the lower ends of the two first clamping jaws 9 to inwardly close or outwardly separate, the second clamping jaw 10 is located on the inner side of the first clamping jaw 9, and the upper end of the second clamping jaw 10 is hinged to the first clamping jaw 9 and gives the second clamping jaw 10 a tendency to clamp the first clamping jaw 9 through an elastic. Like this, rotate through centre gripping drive arrangement drive first clamping jaw and implement the centre gripping or loosen the chair framework, two first clamping jaws are used for centre gripping chair framework outside to compress the framework a small amount when the centre gripping, artifical parcel netted cloth is more laborsaving convenient like this, then, two second clamping jaws are used for centre gripping chair framework inboard, realize two clamping parts and do not centre gripping the both sides frame strip of framework, the centre gripping is firm difficult for shifting. When the chair frame is disassembled, the two second clamping jaws are firstly opened, the clamping driving device loosens the two first clamping jaws, and the frame is disassembled.

In order to position the chair frame and control the elastic deformation, as shown in fig. 9 and 10, the holder 8 has a plate-like structure, two holding portions are respectively located at the left and right sides of the bottom of the holder 8, a first positioning member 84 and a second positioning member 85 for positioning the chair frame are respectively provided at the front and rear sides of the bottom of the holder 8, the first positioning member 84 and the second positioning member 85 may be in the form of a column, a block, a rod, a bar, or a bar, and in a preferred embodiment, a plurality of first positioning members 84 and second positioning members 85 may be provided.

In this embodiment, the elastic device is a torsion spring, and in other embodiments, the elastic device may also be a compression spring, an elastic sheet, or another elastic object. The clamped driving device 7 is a cylinder or a motor. In this embodiment, the inner extending ends of the two first clamping jaws 9 are movably connected with the moving end 71 of the clamping driving device 7 through movable connecting rods 15, one end of each movable connecting rod 15 is hinged with the moving end 71 of the clamping driving device 7, and the other end of each movable connecting rod 15 is hinged with the inner extending end of the first clamping jaw 9.

In this embodiment, the clamping portion further includes a connecting member 13, one end of the connecting member 13 is hinged to the second clamping jaw 10, and a positioning column 14 is fixed on the connecting member 13: when the positioning column 14 abuts against the inner side of the first clamping jaw 9, the first clamping jaw 9 and the second clamping jaw 10 are separated so as to be conveniently placed into the chair frame; when the positioning column 14 is not against the inner side of the first clamping jaw 9, the first clamping jaw 9 and the second clamping jaw 10 are clamped under the action of the elastic device. Thus, the chair frame is convenient to disassemble and assemble.

In this embodiment, as shown in fig. 4, the frame of the rack 1 is C-shaped, the front of the rack 1 is open and the back is closed, and the sensing devices 5 for detecting whether objects or people are inserted into the operation area are correspondingly arranged above and below the front of the rack 1; the sensing device 5 is a correlation infrared sensor; the induction device 5 is in a strip shape; the induction device 5 is connected with a controller for controlling each cylinder and motor. Thus, when the sensing device 5 senses that an object or a human body enters the operation area, the controller prohibits the driving action of each cylinder and the motor so as to avoid personnel injury and production faults.

When the auxiliary device is used, the reticular cloth is laid on the table top 3, the chair frame body is clamped and fixed on the clamping mechanism, the chair frame body is slightly compressed, after the positions of the table top and the clamping seat are positioned, the table top and the clamping seat are mutually closed, so that the relative position of the reticular cloth and the chair frame body is fixed, the reticular cloth is wrapped and tightened by manpower and fixed on the chair frame body, then the clamping mechanism and the chair frame body are turned out, the frame body is detached, and the reticular cloth at the position of the clamping mechanism clamping frame body is fixed by manpower. The machine combines manual operation like this, can improve the production quality and the production efficiency of the netted cloth of chair framework package system greatly, is more convenient for improve new staff's machining efficiency and quality. In the prior art, generally, the mesh cloth is nailed and fixed on the chair frame body at the edge of the mesh cloth, in this embodiment, in order to facilitate nailing and fixing, a steel wire rope is penetrated through the edge of the mesh cloth, and the mesh cloth is wrapped and tightened on the chair frame body by tightening the steel wire rope, as shown in fig. 9 and 10, therefore, a fixed pulley 82 for steering the steel wire rope, a pull head 81 for pulling the end part of the steel wire rope and a pull rope cylinder 83 are arranged below the clamping seat 8, a T-shaped groove for clamping a positioning block at the end part of the steel wire rope is arranged on the pull head 81, and the pull head 81 is fixed.

A method for installing netted cloth to the frame of chair, adopt the above-mentioned auxiliary device, this auxiliary device includes a mesa 3 used for putting netted cloth and a fixture used for holding and fixing the frame 20 of chair, the mesa 3 locates under fixture, mesa 3 and/or fixture go up and down to realize the mutual close or mutual separation of the two, mesa 3 and fixture can both rotate horizontally and both have the same axis of rotation; the step of installing and fixing the mesh cloth on the chair frame 20 comprises the following steps:

5) laying mesh cloth on the table top 3, and installing and fixing the chair frame body 20 on the clamping mechanism;

6) the clamping mechanism and the table top 3 are mutually closed and the chair frame body 20 and the reticular cloth are pressed up and down so as to fix the relative positions of the two;

7) the reticular cloth is wrapped and tightened on the chair frame body 20; a horizontal rotation table 3 and a chair frame 20, wherein the peripheral edge part of the reticular cloth is fixed on the chair frame 20 by nailing;

8) the holding mechanism is opened, and the chair frame 20 to which the mesh cloth is fixed is detached.

In a preferred embodiment, in the step 3), the mesh cloth is wrapped and tightened on the chair frame 20 by tightening the wire rope inserted into the edge of the mesh cloth.

In a preferred embodiment, in step 4), after the chair frame 20 is removed, the mesh cloth at the position where the frame is clamped by the clamping mechanism is nailed and fixed manually.

All features described in the description, the appended claims and the drawings, either individually or in any combination thereof, are essential features of the invention.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "one implementation," "a specific implementation," "other implementations," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment, implementation, or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described above may also be combined in any suitable manner in any one or more of the embodiments, examples, or examples. The invention also includes any one or more of the specific features, structures, materials, or characteristics described above, taken alone or in combination.

Although the embodiments of the present invention have been shown and described, it is understood that the embodiments are illustrative and not restrictive, and that those skilled in the art can make changes, modifications, substitutions, variations, deletions, additions or rearrangements of features and elements within the scope of the invention without departing from the spirit and scope of the invention.