Auxiliary equipment for holding cloth on chair back screen cloth

Abstract

The utility model relates to auxiliary equipment for holding back mesh cloth, and belongs to the technical field of seat production equipment. Comprising a frame, a placing table is arranged in the frame, a fixing mechanism is arranged over the placing table, the upper end of the fixing mechanism is fixedly connected with the top of the frame, a plurality of limiting blocks are arranged at the lower end of the fixing mechanism, grooves are formed in the limiting blocks, and the limiting blocks abut against and are attached to a chair back frame through groove structures, so that the chair back frame is fixedly connected with the placing table; a steel rope for binding is arranged on the edge of the screen cloth, and a wire locking mechanism is arranged on the side edge of the frame; in the scheme, the fixing mechanism can help a worker to fix the chair back frame, and the wire locking mechanism can gather a steel rope to tension the mesh cloth, so that the worker can directly drive a screw and improve a cloth holding method, the working procedure is simplified, the production efficiency is improved, the held mesh cloth is very tight, and the comfort of a user is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of seat production equipment and relates to an auxiliary device for palpating a seat back mesh cloth. Background Art

[0002] Most common office chairs on the market are composed of a backrest and a seat. The backrest can provide support for the user's back, making the person sitting on the chair more comfortable. The structure of the backrest is usually composed of a layer of mesh fabric on the backrest frame. In the production process of the backrest, the production method in the prior art is mostly manual fabrication, firstly fitting one side of the mesh fabric with one side of the backrest, fixing the side with the backrest frame by screws, then tightening the mesh fabric on the opposite side, fixing it by screws, and finally fixing the other two sides in the same way to complete the fabrication of the backrest mesh fabric.

[0003] However, the production method of manually stretching the mesh in the prior art still has some shortcomings. During the stretching process, the mesh is subjected to uneven artificial stretching force, which makes the tension degree of the mesh different at different places after connection, affecting the service life of the chair back. In addition, due to the limited manual pulling force, the mesh on the chair back is very loose and cannot provide good support for the user, reducing the comfort of the chair back. The chair back frame cannot be fixed, resulting in easy shaking during the stretching process, reducing production efficiency and the quality of the chair back. Summary of the invention

[0004] The purpose of the utility model is to solve the problems existing in the prior art and to propose an auxiliary device for chair back mesh fabric. The technical problem to be solved by the utility model is: how to improve the production efficiency and the quality of chair back products at the same time.

[0005] The purpose of the utility model can be achieved through the following technical solutions: an auxiliary device for touching a chair back mesh cloth, comprising a frame, a placing table is provided inside the frame, a lifting mechanism for controlling the lifting of the placing table is provided at the bottom of the placing table, a chair back frame that needs to be touched is placed on the placing table, a mesh cloth is provided between the chair back frame and the placing table, a plurality of upward mounting holes are provided on the side of the chair back frame, a fixing mechanism is provided directly above the placing table, the upper end of the fixing mechanism is fixedly connected to the top of the frame, a plurality of limit blocks are provided at the lower end of the fixing mechanism, a groove is provided on the limit block, the limit block is abutted and fitted with the chair back frame through the groove structure, so that the chair back frame is fixedly connected to the placing table, a steel rope for tightening is provided at the edge of the mesh cloth, and a locking wire mechanism is provided on the side of the frame.

[0006] In this solution, the lifting mechanism can control the rise and fall of the placement table. Before the work starts, the placement table is at the lowest point. The mesh cloth to be pressed is placed on the placement table first, and then the back of the chair back frame is placed on the mesh cloth with the back of the chair back frame facing upwards. After the structure of the chair back frame and the placement table are fitted and stabilized, the placement table is controlled to move up by the lifting mechanism to make the chair back frame fit with the groove on the limit block, and multiple limit blocks jointly support the chair back frame to fix the chair back frame on the placement table; then the chair back frame is wrapped inside with the mesh cloth, and the steel rope is pulled by the locking mechanism to shrink and tighten the mesh cloth, and then the screws are driven into the mounting holes by an electric screwdriver to fix the tightened mesh cloth to the chair back frame. After the pressing is completed, the placement table is lowered by the lifting mechanism to remove the chair back frame from the placement table. In this solution, an auxiliary device for making chair back mesh is provided. The fixing mechanism can help workers fix the chair back frame, and the locking mechanism can tighten the steel rope to tighten the mesh, so that workers can directly drive in screws. The method of making the mesh is improved, the process is simplified, and the production efficiency is improved. The chair back made by this method has a very tight mesh on it, which improves the comfort of the user.

[0007] In the above auxiliary device for the chair back mesh fabric, the thread locking mechanism includes a telescopic platform, a slide bar is provided on the telescopic platform, a slide plate is provided on the slide bar, and a ratchet device is fixedly connected to the slide plate. The slide plate extends from the telescopic platform along the direction of the slide bar, thereby driving the ratchet device to move closer to or away from the side close to the placement platform.

[0008] In the above auxiliary device for touching the back mesh cloth, the ratchet device includes handles on both sides and two rotating rods extending to one side of the back frame, the handles on both sides respectively control the rotation of a single rotating rod, and a reset rod is provided on the ratchet device. The ratchet device controls the rotation of the rotating rod by pressing the handles on both sides, and the rotating rod can be quickly reset by the reset rod.

[0009] In the above auxiliary device for the seat back mesh cloth, the end of the rotating rod is provided with an annular groove, and the steel rope is wound inside the annular groove. The two ends of the steel rope on the mesh cloth are respectively wound on two rotating rods, and the function of tightening the mesh cloth is replaced by manual work through the rotation of the rotating rod.

[0010] In the above auxiliary equipment for the seat back mesh cloth, the limit block is provided with a clamping piece, the seat back frame is provided with a fixing needle, and the top of the fixing needle is against the clamping piece. After the locking mechanism gathers the steel rope, a plurality of fixing needles are used to pass through the mesh cloth to tighten the sides of the mesh cloth, and then the bottom of the fixing needle is clamped with the seat back frame, and the top of the fixing needle is clamped with the clamping piece, so that the fixing needle does not need manual support, and the side mesh cloth can also be tightened at the same time.

[0011] In the above auxiliary equipment for the chair back mesh fabric, the lifting mechanism includes a hydraulic cylinder and a plurality of telescopic rods, the bottom ends of the hydraulic cylinder and the telescopic rods are fixedly connected to the frame. The specific function of the lifting mechanism is to push the hydraulic cylinder upward to drive the telescopic rods on the surrounding side to extend, thereby realizing the lifting function, and the lowering function is the opposite.

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] 1. In this solution, the fixing mechanism can help workers fix the chair back frame, and the locking wire mechanism can tighten the steel rope to tighten the mesh, so that workers can directly drive in screws, thereby improving the method of touching the cloth, simplifying the process, and improving production efficiency. The chair back made by this method has a very tight mesh on it, which improves the comfort of the user.

[0014] 2. In this solution, after the wire locking mechanism tightens the steel rope, multiple fixing needles are used to pass through the mesh cloth to tighten the sides of the mesh cloth. The bottom of the fixing needle is then clamped to the chair back frame, and the top of the fixing needle is clamped to the clamping piece, so that the fixing needle does not need manual support and can also tighten the side mesh cloth. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 This is a right-side half-section structural schematic diagram of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the chair back frame of the utility model;

[0018] Figure 4 It is a three-dimensional structural schematic diagram of the thread locking mechanism of the utility model.

[0019] In the figure, 1, frame; 2, placement table; 3, chair back frame; 3a, mounting hole; 4, lifting mechanism; 4a, telescopic rod; 4b, hydraulic cylinder; 5, fixing mechanism; 5a, limit block; 5b, groove; 5c, clamping part; 6, locking mechanism; 6a, telescopic table; 6b, sliding rod; 6c, sliding plate; 7, fixing needle; 8, mesh; 8a, steel rope; 9, ratchet device; 9a, handle; 9b, rotating rod; 9c, reset rod; 9d, annular groove. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] Example

[0022] like Figure 1As shown, the auxiliary equipment for touching the seat back mesh cloth includes a frame 1, four telescopic rods 4a are provided at the bottom of the frame 1, a fixed placement platform 2 is provided at the top of the telescopic rods 4a, a hydraulic cylinder 4b is provided at the bottom center of the placement platform 2, a seat back frame 3 is provided above the placement platform 2, a fixed fixing mechanism 5 is provided at the top of the frame 1, and the fixing mechanism 5 is provided directly above the placement platform 2, and a locking wire mechanism 6 is provided on the side of the frame 1.

[0023] like Figure 2 As shown, the fixing mechanism 5 includes a plurality of limit blocks 5a, each of which has a groove 5b at its bottom. The limit blocks 5a abut against the seat back frame 3 through the groove 5b structure, so that the seat back frame 3 is fixed on the placement table 2. The limit blocks 5a are each provided with a clamping piece 5c with different directions. The seat back frame 3 is provided with a clamping fixing pin 7, and the top of the fixing pin 7 abuts against the clamping piece 5c.

[0024] like Figure 3 As shown, a plurality of mounting holes are provided on the side of the seat back frame 3, and the side of the seat back frame 3 with the mounting holes is placed on the placement table 2, a mesh cloth 8 is provided between the seat back frame 3 and the placement table 2, and a circle of steel rope 8a is provided on the surrounding side of the mesh cloth 8, and both ends of the steel rope 8a extend from one side of the mesh cloth 8.

[0025] like Figure 4 As shown, the locking mechanism 6 includes a telescopic platform 6a, a sliding rod 6b is provided on the telescopic platform 6a, a sliding rod 6c is provided on the sliding rod 6b for sliding connection, a ratchet device 9 is fixedly provided on the sliding plate 6c, and the ratchet device 9 includes handles 9a on both sides and two rotating rods 9b extending to one side of the chair back frame 3, the handles 9a on both sides respectively control the rotation of a single rotating rod 9b, a reset rod 9c is provided on the ratchet device 9, an annular groove 9d is provided at the end of the rotating rod 9b, and the steel rope 8a is wound inside the annular groove 9d.

[0026] The working principle of this scheme is as follows: before the control begins, the hydraulic cylinder 4b is in a retracted state, the placement table 2 is located at a lower position, the mesh cloth 8 to be controlled is placed on the placement table 2, and then the side of the mounting hole of the seat back frame 3 is placed on the top of the mesh cloth 8, so that the seat back frame 3 and the placement table 2 are in a stable fit, the telescopic rod 4a is extended by the hydraulic cylinder 4b, and the placement table 2 moves up to make the seat back frame 3 fit with the groove 5b on the limit block 5a, and the multiple limit blocks 5a jointly support the seat back frame 3, so that the seat back frame 3 is fixed on the placement table 2; then the seat back frame 3 is wrapped inside with the mesh cloth 8, and the seat back frame 3 is fixed on the placement table 2. A plurality of fixing needles 7 are inserted into the mesh 8, which is tightened by the fixing needles 7 and then clamped with the backrest frame 3 and the clamping piece 5c, and then the initially tightened steel rope 8a is wound in the annular groove 9d, and the handle 9a is pulled to drive the rotating shaft to rotate, so that the mesh 8 is tightened again when the steel rope 8a is tightened, and then the screws are driven into the mounting holes by an electric screwdriver to fix the tightened mesh 8 to the backrest frame. After the control is completed, the wound steel rope 8a is loosened by the reset rod 9c, and the excess part of the steel rope 8a is cut off, and finally the placement table 2 is lowered by the hydraulic cylinder 4b to remove the backrest frame 3 from the placement table 2.

[0027] In this solution, the fixing mechanism 5 can help workers fix the chair back frame 3, and the locking mechanism 6 can tighten the steel rope 8a to tighten the mesh 8, so that workers can directly drive in screws. The method of tightening the mesh 8 is improved. The mesh 8 is tightened and fixed before screws are driven in to fix it, making the tightening operation easier, simplifying the process, and improving production efficiency. The chair back made by this method has a very tight mesh 8, which improves the comfort of the user.

[0028] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0029] Although this article uses more terms such as 1, frame; 2, placement table; 3, chair back frame; 3a, mounting hole; 4, lifting mechanism; 4a, telescopic rod; 4b, hydraulic cylinder; 5, fixing mechanism; 5a, limit block; 5b, groove; 5c, clamping piece; 6, locking mechanism; 6a, telescopic table; 6b, slide bar; 6c, slide plate; 7, fixing needle; 8, mesh; 8a, steel rope; 9, ratchet device; 9a, handle; 9b, rotating rod; 9c, reset rod; 9d, annular groove, etc., it does not exclude the possibility of using other terms. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. An auxiliary device for touching a seat back mesh cloth, comprising a frame (1), a placing platform (2) is provided inside the frame (1), a lifting mechanism (4) for controlling the lifting of the placing platform (2) is provided at the bottom of the placing platform (2), a seat back frame (3) to be touched is placed on the placing platform (2), a mesh cloth (8) is provided between the seat back frame (3) and the placing platform (2), a plurality of upward mounting holes (3a) are provided on the side of the seat back frame (3), and the characteristics are as follows: A fixing mechanism (5) is provided directly above the placement platform (2), the upper end of the fixing mechanism (5) is fixedly connected to the top of the frame (1), a plurality of limit blocks (5a) are provided at the lower end of the fixing mechanism (5), the limit blocks (5a) are provided with grooves (5b), the limit blocks (5a) are abutted against the chair back frame (3) through the groove (5b) structure, so that the chair back frame (3) is fixedly connected to the placement platform (2), the edge of the mesh cloth (8) is provided with a steel rope (8a) for bundling, and a locking mechanism (6) is provided on the side of the frame (1).

2. The auxiliary device for touching the mesh cloth of the chair back according to claim 1, characterized in that: The thread locking mechanism (6) comprises a telescopic platform (6a), a sliding rod (6b) is provided on the telescopic platform (6a), a sliding plate (6c) slidably connected to the sliding rod (6b), and a ratchet device (9) fixedly connected to the sliding plate (6c) is provided on the sliding plate (6c).

3. The auxiliary device for touching the mesh cloth of the chair back according to claim 2, characterized in that: The ratchet device (9) comprises handles (9a) on two sides and two rotating rods (9b) extending toward one side of the chair back frame (3), the handles (9a) on two sides respectively control the rotation of a single rotating rod (9b), and a reset rod (9c) is provided on the ratchet device (9).

4. The auxiliary device for touching the mesh cloth of the chair back according to claim 3, characterized in that: An annular groove (9d) is provided at the end of the rotating rod (9b), and the steel rope (8a) is wound inside the annular groove (9d).

5. The auxiliary device for touching the mesh cloth of the chair back according to claim 1, characterized in that: The limit block (5a) is provided with a clamping piece (5c), the chair back frame (3) is provided with a fixing pin (7), and the top of the fixing pin (7) abuts against the clamping piece (5c).

6. The auxiliary device for touching the mesh cloth of the chair back according to claim 1, characterized in that: The lifting mechanism (4) comprises a hydraulic cylinder (4b) and a plurality of telescopic rods (4a), and the bottom ends of the hydraulic cylinder (4b) and the telescopic rods (4a) are fixedly connected to the frame (1).

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