A bending and shaping device for processing dining chairs

Abstract

This utility model discloses a bending and shaping device for processing dining chairs, comprising: a U-shaped base with legs fixedly connected to its four corners; two sets of U-shaped movable seats positioned above the U-shaped base, with two support rollers rotatably mounted on the rear inner wall of each U-shaped movable seat; and two sets of U-shaped lifting seats, each rotatably connected to the corresponding U-shaped movable seat, with two positioning pressure rollers rotatably mounted between the front and rear inner walls of each U-shaped lifting seat, positioned above the corresponding support rollers. This utility model, through a series of structures, can compress and bend the wood of dining chairs while protecting its sides from prying. It allows for convenient and quick adjustment of the bending spacing according to the bending width, simplifying operation and improving adjustment convenience and efficiency. Furthermore, it allows for flexible adjustment of the upper positioning limit height according to the thickness of the wood to be bent, facilitating stable side protection and pry prevention for wood of varying thicknesses, thus improving applicability.

Description

Technical Field

[0001] This utility model relates to the field of dining chair processing technology, specifically a bending and shaping device for dining chair processing. Background Technology

[0002] Wooden dining chair processing belongs to the wood processing industry. Wood processing uses wood as raw material and is mainly carried out by mechanical or chemical methods. The products still retain the basic characteristics of wood. Wood processing technology includes basic processing techniques such as wood cutting, wood drying, wood gluing, and wood surface decoration, as well as functional treatment techniques such as wood protection and wood modification. Cutting methods include sawing, planing, milling, drilling, and sanding.

[0003] Existing bending devices for dining chairs place the wood to be bent on a pad and then press down on the wood to bend it. For example, CN215423704U discloses a bending and shaping device for processing dining chairs, including a base, legs fixedly connected to the underside of the base, and a pressing mechanism on the base. Several sliding mechanisms are provided on the base, each with a mounting plate fixedly connected. Bolts are threadedly connected to the mounting plates, with the threaded shafts of the bolts pointing upwards. A connecting rod is fixedly connected to the upper end of each bolt. The connecting rod has a support block rotatably connected to its upper end. The support block has a first receiving groove and a second receiving groove on its side. A round rod is installed inside the first receiving groove, and an L-shaped rod is fixedly connected to the end of the round rod. The L-shaped rod extends into the second receiving groove. The support block has a through hole that communicates with the first receiving groove and the second receiving groove. When it is necessary to bend the wood into an S-shape, the L-shaped rod is moved to the upper side of the support block to hold the wood in place, preventing the held side of the wood from curling up, thus bending the wood into an S-shape.

[0004] The aforementioned technology discloses a bending and shaping device for processing dining chairs. It uses L-shaped rods on both sides to clamp the wood at the bending position, and drives the pressure blocks downwards to compress and bend the wood. However, it has the following shortcomings: 1. Adjusting the bending spacing requires disassembling and reassembling the tightening screws to move the two support blocks, which is cumbersome and makes it difficult to quickly and easily adjust the bending spacing according to the bending width, resulting in poor convenience and efficiency; 2. The width of the L-shaped rods' inner side for limiting the wood is fixed, lacking the flexibility to adjust the upper limit height according to different thicknesses of dining chair wood. This makes it difficult to apply to stable side limits and anti-prying for wood of different thicknesses, resulting in poor applicability. Therefore, this application proposes a bending and shaping device for processing dining chairs to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this utility model is to provide a bending and shaping device for processing dining chairs, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a bending and shaping device for processing dining chairs, comprising:

[0007] The base is shaped like a U-shape, with legs fixedly connected to each of its four bottom corners;

[0008] The U-shaped moving seat consists of two sets arranged above the U-shaped base, and two support rollers are rotatably mounted on the rear inner wall of the U-shaped moving seat.

[0009] The U-shaped lifting seat consists of two sets, each connected to a corresponding U-shaped movable seat for lifting and lowering. Two positioning rollers, each located above a corresponding support roller, are rotatably installed between the front and rear inner walls of the U-shaped lifting seat. Four vertical guide rods are fixedly connected to the top of the U-shaped lifting seat in a rectangular shape. The U-shaped movable seat is slidably fitted onto the four vertical guide rods. The four support rollers are used to provide movable support for the bent dining chair wood, and the four positioning rollers are used to press and position the bent dining chair wood when the sides are tilted upwards.

[0010] The L-shaped support is fixedly connected to the top rear side of the U-shaped base;

[0011] The bidirectional threaded transverse guide drive assembly is installed inside the U-shaped base and fixedly connected to the bottom of the two U-shaped moving seats. The bidirectional threaded transverse guide drive assembly is used to drive the two U-shaped moving seats to move close to or repel each other, so as to drive the support rollers on both sides to move close to or repel each other, so as to flexibly adjust the bending spacing according to the bending width requirements.

[0012] A vertically driven extrusion assembly is mounted on an L-shaped support and located between two U-shaped movable seats; the vertically driven extrusion assembly is used for extruding and bending dining chair wood to be bent.

[0013] Preferably, the U-shaped lifting seat is threadedly connected to the corresponding U-shaped moving seat, and a T-shaped screw is rotatably installed on the top of the U-shaped lifting seat. The top of the U-shaped moving seat has a threaded hole that is threadedly connected to the corresponding T-shaped screw.

[0014] Preferably, the U-shaped lifting seat is electrically driven and connected within the corresponding U-shaped movable seat.

[0015] Preferably, an electric telescopic rod with its extended end fixedly connected to the top of the U-shaped movable seat is fixedly installed on the top of the U-shaped lifting seat. A synchronous control switch is fixedly installed on the front side of the electric telescopic rod located on the left side. Both electric telescopic rods are electrically connected to the synchronous control switch through wires.

[0016] Preferably, the bidirectional threaded transverse guide drive assembly includes eight transverse guide rods, two screws, a drive motor, and two transverse sliding seats. The eight transverse guide rods are rectangularly and fixedly connected between the inner walls of both sides of the U-shaped base. The two transverse sliding seats are slidably sleeved on the eight transverse guide rods and are respectively fixedly connected to the bottom of the corresponding U-shaped moving seat. The two screws are fixedly connected at their closest ends, and the screws have opposite thread directions. The right end of the right screw is rotatably connected to the right inner wall of the U-shaped base. The two transverse sliding seats are respectively threaded onto the corresponding screws. The drive motor is fixedly installed on the left side of the U-shaped base, and the output shaft of the drive motor is fixedly connected to the left end of the left screw.

[0017] Preferably, the vertical drive extrusion assembly includes an electric push rod, four L-shaped guide rods, and a pressure block. The electric push rod is embedded and fixed on the top inner wall of the L-shaped support. The pressure block is fixedly connected to the bottom of the extended end of the electric push rod. The bottom of the pressure block is set with an arc-shaped structure. The four L-shaped guide rods are fixedly connected to the top of both sides of the pressure block in pairs. The L-shaped support is slidably sleeved on the four L-shaped guide rods.

[0018] Preferably, threaded through holes are provided on the adjacent sides of the two transverse sliding seats, and the threaded through holes are threadedly connected to the corresponding screws.

[0019] Compared with the prior art, the beneficial effects of this utility model are:

[0020] 1. By using a U-shaped moving seat, support roller, U-shaped lifting seat, positioning pressure roller, L-shaped support and vertical drive extrusion assembly, the wood of the dining chair is extruded and bent, and its sides are shielded to prevent prying.

[0021] 2. With the cooperation of the U-shaped moving seat, support roller, U-shaped lifting seat, positioning pressure roller, bidirectional threaded transverse guide drive assembly and return base, the bending spacing can be adjusted flexibly and quickly according to the bending width, which is simple to operate and improves the convenience and efficiency of adjustment.

[0022] 3. Through the combination of the U-shaped moving seat, support roller, U-shaped lifting seat, positioning pressure roller, T-shaped screw and vertical guide rod, the height of the upper positioning limit can be flexibly adjusted according to the thickness of the dining chair wood to be bent, which is convenient for the side stabilization and anti-pry work of wood of different thicknesses and improves applicability.

[0023] 4. By using a U-shaped moving seat, support roller, U-shaped lifting seat, positioning pressure roller, vertical guide rod, two electric telescopic rods and synchronous control switch in combination, the positioning pressure height can be conveniently and quickly adjusted by synchronous electric drive from both sides, further improving the positioning efficiency and convenience of the pressure.

[0024] This utility model, through a series of structures, can compress and bend the wood of dining chairs and shield both sides to prevent prying. It allows for convenient and quick adjustment of the bending spacing according to the bending width, making operation simple, improving the convenience and efficiency of adjustment. Furthermore, it can flexibly adjust the height of the upper positioning stop according to the different thicknesses of the dining chair wood to be bent, making it convenient for stabilizing and preventing prying on the sides of wood of different thicknesses, thus improving its applicability. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of a bending and shaping device for processing dining chairs according to Embodiment 1 of this utility model;

[0026] Figure 2 This is a front sectional view of a bending and shaping device for processing dining chairs according to Embodiment 1 of this utility model;

[0027] Figure 3 This is a front sectional view of a bending and shaping device for processing dining chairs, as proposed in Embodiment 2 of this utility model.

[0028] In the diagram: 1. U-shaped base; 101. Horizontal guide rod; 102. Screw; 103. Horizontal sliding seat; 104. Drive motor; 2. U-shaped moving seat; 201. Support roller; 202. U-shaped lifting seat; 203. Positioning pressure roller; 204. Vertical guide rod; 205. T-shaped screw; 206. Electric telescopic rod; 3. L-shaped support; 301. Electric push rod; 302. Pressure block; 303. L-shaped guide rod. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] like Figures 1 to 2 As shown in this embodiment, a bending and shaping device for processing dining chairs includes:

[0032] The base 1 is shaped like a loop, with legs fixedly connected to its four bottom corners;

[0033] The U-shaped movable seat 2 consists of two sets and is set above the U-shaped base 1. Two support rollers 201 are rotatably installed on the inner rear wall of the U-shaped movable seat 2.

[0034] The U-shaped lifting seat 202 consists of two sets, each connected to the corresponding U-shaped movable seat 2 for lifting and lowering. Two positioning pressure rollers 203 are rotatably installed between the front and rear inner walls of the U-shaped lifting seat 202, each located above the corresponding support roller 201. The top of the U-shaped lifting seat 202 is rectangularly fixedly connected with four vertical guide rods 204. The U-shaped movable seat 2 is slidably sleeved on the corresponding four vertical guide rods 204. The four support rollers 201 are used to provide movable support for the dining chair wood to be bent, and the four positioning pressure rollers 203 are used to press and position the dining chair wood to be bent when the sides are tilted upwards.

[0035] L-shaped support 3 is fixedly connected to the top rear side of the U-shaped base 1;

[0036] The bidirectional threaded transverse guide drive assembly is installed inside the U-shaped base 1 and fixedly connected to the bottom of the two U-shaped moving seats 2. The bidirectional threaded transverse guide drive assembly is used to drive the two U-shaped moving seats 2 to move close to or repel each other, so as to drive the support rollers 201 on both sides to move close to or repel each other, so as to flexibly adjust the bending spacing according to the bending width requirements.

[0037] The vertical drive extrusion assembly is mounted on the L-shaped support 3 and located between the two U-shaped movable seats 2; the vertical drive extrusion assembly is used for extruding and bending the dining chair wood to be bent.

[0038] In this embodiment, the top of the U-shaped movable seat 2 is provided with four vertical guide holes that are respectively slidably fitted to the outer side of the corresponding vertical guide rod 204, which serves to guide the vertical sliding of the vertical guide rod 204; two first stainless steel shafts are welded and fixed on the rear inner wall of the U-shaped movable seat 2 and between the front and rear inner walls of the U-shaped lifting seat 202; the front end of the support roller 201 and the front end of the positioning pressure roller 203 are provided with first circular through holes; two first bearings are fixedly fitted in the first circular through holes; the inner ring of the first bearing is fixedly fitted to the outer side of the corresponding first stainless steel shaft, which serves to rotate and install the support roller 201 and the positioning pressure roller 203.

[0039] Furthermore, such as Figure 2 As shown, the U-shaped lifting seat 202 is threadedly connected to the corresponding U-shaped movable seat 2. A T-shaped screw 205 is rotatably installed on the top of the U-shaped lifting seat 202. The top of the U-shaped movable seat 2 has a threaded hole that is threadedly connected to the corresponding T-shaped screw 205. A second bearing is fixedly connected to the top of the U-shaped lifting seat 202. The inner side of the inner ring of the second bearing is fixedly connected to the outer side of the corresponding T-shaped screw 205, which achieves the effect of rotatably installing the T-shaped screw 205.

[0040] In this embodiment, the T-shaped screw 205 is engaged with the threaded hole. When the T-shaped screw 205 is rotated, it rotates in the corresponding threaded hole and moves downward or upward. The T-shaped screw 205 drives the corresponding U-shaped lifting seat 202 to move downward or upward. The U-shaped lifting seat 202 drives the corresponding two positioning pressure rollers 203 to move up and down to adjust the positioning pressure height according to the different thicknesses of the dining chair wood to be bent.

[0041] Furthermore, such as Figure 1 and 2 As shown, the bidirectional threaded transverse guide drive assembly includes eight transverse guide rods 101, two screws 102, a drive motor 104, and two transverse shift seats 103. The eight transverse guide rods 101 are rectangularly and fixedly connected between the inner walls of both sides of the U-shaped base 1. The two transverse shift seats 103 are slidably sleeved on the eight transverse guide rods 101. The two transverse shift seats 103 are respectively fixedly connected to the bottom of the corresponding U-shaped moving seat 2. The two screws 102 are fixedly connected at their closest ends. The threads of the two screws 102 are opposite in direction. The right end of the right screw 102 is rotatably connected to the right inner wall of the U-shaped base 1. The two transverse shift seats 103 are respectively threadedly sleeved on the corresponding screws 102. The drive motor 104 is fixedly installed on the left side of the U-shaped base 1. The output shaft of the drive motor 104 is fixedly connected to the left end of the left screw 102.

[0042] In this embodiment, threaded through holes are provided on the adjacent sides of the two transverse sliding seats 103. The threaded through holes are threadedly connected to the corresponding screws 102. By utilizing the threaded connection between the screws 102 and the threaded through holes, and in combination with the opposite screw directions of the two screws 102, it is possible to drive the two transverse sliding seats 103 to move closer or further apart when the two screws 102 rotate. The right side of the transverse sliding seat 103 has eight transverse guide holes, which are respectively slidably fitted to the outer side of the corresponding transverse guide rod 101, thus providing a lateral sliding guide for the transverse sliding seat 103. The inner wall of the right side of the U-shaped base 1 is fixedly connected to a third bearing. The inner ring of the third bearing is fixedly fitted to the outer side of the right screw 102, thus providing a rotatable mounting effect for the screw 102.

[0043] In this embodiment, eight horizontal guide rods 101, two screws 102, a drive motor 104, and two horizontal sliding seats 103 work together. The drive motor 104 drives the two screws 102 to rotate. The rotation of the two screws 102 causes the two horizontal sliding seats 103 to slide close to or repel each other on the eight horizontal guide rods 101. The two horizontal sliding seats 103 drive the two U-shaped moving seats 2 to move close to or repel each other, thereby adjusting the bending distance formed between the support rollers 201 on both sides. This achieves the effect of conveniently and quickly adjusting the bending distance according to different bending widths, improving adjustment efficiency and convenience.

[0044] Furthermore, such as Figure 1and 2 As shown, the vertical drive extrusion assembly includes an electric push rod 301, four L-shaped guide rods 303, and a pressure block 302. The electric push rod 301 is embedded and fixed on the top inner wall of the L-shaped support 3. The pressure block 302 is fixedly connected to the bottom of the extended end of the electric push rod 301. The bottom of the pressure block 302 is set with an arc-shaped structure. The four L-shaped guide rods 303 are fixedly connected to the top of both sides of the pressure block 302 in pairs. The L-shaped support 3 is slidably sleeved on the four L-shaped guide rods 303.

[0045] In this embodiment, the electric push rod 301, four L-shaped guide rods 303, and pressure block 302 work together. The electric push rod 301 drives the pressure block 302 to move downward, and the pressure block 302 drives the four L-shaped guide rods 303 to move downward to perform vertical guiding work. The pressure block 302 compresses and bends the wood of the dining chair to be bent. By using the rotating installation of positioning pressure roller 203 and support roller 201, during the compression and bending process, when the two sides of the wood of the dining chair to be bent shrink towards the middle, the multiple support rollers 201 and positioning pressure roller 203 rotate adaptively to perform adaptive feeding work during bending.

[0046] It should be noted that the top of the L-shaped support 3 is provided with a guide hole for the L-shaped guide rod 303 to pass through vertically. The L-shaped support 3 is slidably fitted onto the corresponding L-shaped guide rod 303 through the guide hole.

[0047] It should be noted that: screw 102, horizontal guide rod 101, horizontal sliding seat 103, U-shaped sliding seat 2 and T-shaped screw 205 are all made of stainless steel. The outer thread clearance of screw 102 and T-shaped screw 205 is a high wear-resistant and load-bearing specification of 0.2-0.35mm. The stainless steel material has the advantages of high hardness, high wear resistance and good maintenance-free effect, which ensures the stability of connection and drive support.

[0048] In addition, both the drive motor 104 and the electric push rod 301 are equipped with switches and are directly electrically connected via flexible wires. Regarding power supply, given that the dining chair production and processing site has various electrical devices and complete power supply conditions, the electrical components of this device can be connected to the mains power on site. Specifically, they are connected to the power input interfaces of each device through conventional power distribution devices such as circuit breakers, contactors, and power modules (not marked in the figure) to form a complete power supply circuit. This power supply scheme adopts the conventional power distribution and switch operation wiring method of industrial equipment, which is a conventional and mature known technology in this field and will not be described in detail here.

[0049] This embodiment can compress and bend the wood of the dining chair and block its sides to prevent prying. It is convenient and quick to adjust the bending spacing according to the bending width. The operation is simple and improves the convenience and efficiency of adjustment. It can also flexibly adjust the height of the upper positioning limit according to the different thicknesses of the dining chair wood to be bent, which is convenient for the side stabilization and anti-prying work of wood of different thicknesses, thus improving applicability.

[0050] The method of use in this embodiment is as follows: When using the bending and shaping device for dining chair processing, place the dining chair wood to be bent backward on top of the four support rollers 201, so that the position of the wood to be bent is below the pressure block 302. The four positioning pressure rollers 203 block and restrict the wood on both sides of the bending position to prevent the wood from warping upward when bending in the middle. Before pressing, hold the wood on one side by hand to keep it in place. Then, start the electric push rod 301 in the forward direction to drive the pressure block 302 to move downward. The pressure block 302 drives the four L-shaped guide rods 303 to move downward to perform vertical guiding work. The pressure block 302 presses and bends the dining chair wood to be bent downward. When pressing, the support on one side can be released. During pressing, the pressing friction between the pressure block 302 and the wood maintains the positioning effect, realizing the bending of the dining chair wood. The effect of bending the wood is that after bending, the electric push rod 301 is activated in the reverse direction to drive the pressure block 302 to move upward and reset. When it is necessary to bend the wood into an S-shape, the wood that has been initially bent is taken out forward, the wood is flipped over, and one side of the bent wood is placed outside one of the U-shaped moving seats 2. Then it is placed backward on top of the four support rollers 201. The electric push rod 301 can be activated in the forward direction again to drive the pressure block 302 to press down and bend. Under the two pressing and bending, an S-shaped bending effect is formed. In addition, by using the rotating installation of the positioning pressure roller 203 and the support roller 201, when the wood of the dining chair to be bent shrinks towards the middle on both sides during the pressing and bending, the multiple support rollers 201 and the positioning pressure roller 203 rotate adaptively to perform adaptive feeding during the bending process, ensuring stable pressing and bending of the wood of the dining chair.

[0051] In addition, when it is necessary to adjust the bending spacing according to different bending width requirements, the drive motor 104 is started to drive the two screws 102 to rotate. Under the action of the opposite screw threads, the two screws 102 rotate and drive the two transverse sliding seats 103 to slide close to or repel each other on the eight transverse guide rods 101. The two transverse sliding seats 103 drive the two U-shaped moving seats 2 to move close to or repel each other. The two U-shaped moving seats 2 drive the support rollers 201 on both sides to move close to or repel each other, thereby adjusting the bending spacing in the middle. By using electric direct drive to move the support structures on both sides close to or repel each other, the bending spacing can be adjusted flexibly and quickly according to the bending width. The operation is simple and improves the convenience and efficiency of adjustment.

[0052] Before bending, when adjusting the positioning stop position of the positioning pressure roller 203 according to different wood thicknesses, rotate the T-shaped screw 205. It rotates in the corresponding threaded hole and moves downward or upward. The T-shaped screw 205 drives the corresponding U-shaped lifting seat 202 to move downward or upward. The U-shaped lifting seat 202 drives the corresponding four vertical guide rods 204 to move vertically for vertical guidance. The U-shaped lifting seat 202 drives the corresponding two positioning pressure rollers 203 to move, changing the distance between them and the support roller 201. This achieves the effect of flexibly adjusting the upper positioning stop height according to different thicknesses of dining chair wood to be bent, which is convenient for stabilizing the side stops and preventing prying of wood of different thicknesses, thus improving applicability.

[0053] Example 2

[0054] Reference Figure 3 As shown, this embodiment differs from Embodiment 1 in that: the U-shaped lifting seat 202 is electrically driven and connected to the corresponding U-shaped moving seat 2. An electric telescopic rod 206 with its extended end fixedly connected to the top of the U-shaped moving seat 2 is fixedly installed on the top of the U-shaped moving seat 2. A synchronous control switch is fixedly installed on the front side of the electric telescopic rod 206 on the left side. Both electric telescopic rods 206 are electrically connected to the synchronous control switch through wires.

[0055] This embodiment can conveniently and quickly adjust the positioning pressure height through synchronous electric drive on both sides, further improving the positioning efficiency and convenience of the pressure.

[0056] The method of use in this embodiment is as follows: Unlike Embodiment 1, it also has the following functions: Using the two electric telescopic rods 206 and a synchronous control switch, personnel can directly operate and control the two electric telescopic rods 206 to start forward or in reverse via the synchronous switch. The electric telescopic rods 206 directly drive the corresponding U-shaped lifting seat 202 to move downward or upward. The U-shaped lifting seat 202 drives the corresponding two positioning pressure rollers 203 to move up and down, adjusting the positioning pressure height according to the different thicknesses of the dining chair wood to be bent. By directly and synchronously adjusting the positioning pressure height from both sides, the efficiency and convenience of the pressure positioning are further improved.

[0057] It should be noted that personnel use a synchronous switch to control the two electric telescopic rods 206 to start in the forward or reverse direction, which is a control method known to those skilled in the art.

[0058] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bending and shaping device for processing dining chairs, comprising a U-shaped base (1), characterized in that: include: The base is shaped like a U-shape (1), and its four bottom corners are fixedly connected with support legs; The U-shaped moving seat (2) consists of two sets and is set above the U-shaped base (1). Two support rollers (201) are rotatably installed on the rear inner wall of the U-shaped moving seat (2). The U-shaped lifting seat (202) consists of two sets that are respectively connected to the corresponding U-shaped moving seat (2) for lifting and lowering. Two positioning pressure rollers (203) are rotatably installed between the front and rear inner walls of the U-shaped lifting seat (202) and are respectively located above the corresponding support rollers (201). The top of the U-shaped lifting seat (202) is rectangular and fixedly connected with four vertical guide rods (204). The U-shaped moving seat (2) is slidably sleeved on the corresponding four vertical guide rods (204). The L-shaped support (3) is fixedly connected to the top rear side of the U-shaped base (1); A bidirectional threaded transverse guide drive assembly is installed inside the U-shaped base (1) and fixedly connected to the bottom of two U-shaped movable seats (2); The vertical drive extrusion assembly is mounted on the L-shaped support (3) and located between the two U-shaped moving seats (2).

2. The bending and shaping device for processing dining chairs according to claim 1, characterized in that: The U-shaped lifting seat (202) is threadedly lifted and lowered within the corresponding U-shaped moving seat (2). A T-shaped screw (205) is rotatably mounted on the top of the U-shaped lifting seat (202), and a threaded hole is provided on the top of the U-shaped moving seat (2) for threaded connection with the corresponding T-shaped screw (205).

3. The bending and shaping device for processing dining chairs according to claim 1, characterized in that: The U-shaped lifting seat (202) is electrically driven and lifted within the corresponding U-shaped moving seat (2).

4. The bending and shaping device for processing dining chairs according to claim 3, characterized in that: The top of the U-shaped movable seat (2) is fixedly equipped with an electric telescopic rod (206) whose extended end is fixedly connected to the top of the U-shaped lifting seat (202). A synchronous control switch is fixedly installed on the front side of the electric telescopic rod (206) on the left side. Both electric telescopic rods (206) are electrically connected to the synchronous control switch through wires.

5. The bending and shaping device for processing dining chairs according to claim 1, characterized in that: The bidirectional threaded transverse guide drive assembly includes eight transverse guide rods (101), two screws (102), a drive motor (104), and two transverse shift seats (103). The eight transverse guide rods (101) are fixedly connected in a rectangular shape between the inner walls of the two sides of the U-shaped base (1). The two transverse shift seats (103) are slidably sleeved on the eight transverse guide rods (101). The two transverse shift seats (103) are fixedly connected to the bottom of the corresponding U-shaped moving seat (2). The two screws (102) are fixedly connected at their closest ends. The threads of the two screws (102) are opposite. The right end of the right screw (102) is rotatably connected to the right inner wall of the U-shaped base (1). The two transverse shift seats (103) are threadedly sleeved on the corresponding screws (102). The drive motor (104) is fixedly installed on the left side of the U-shaped base (1). The output shaft of the drive motor (104) is fixedly connected to the left end of the left screw (102).

6. The bending and shaping device for processing dining chairs according to claim 1, characterized in that: The vertical drive extrusion assembly includes an electric push rod (301), four L-shaped guide rods (303), and a pressure block (302). The electric push rod (301) is embedded and fixed on the top inner wall of the L-shaped support (3). The pressure block (302) is fixedly connected to the bottom of the extended end of the electric push rod (301). The bottom of the pressure block (302) is set as an arc structure. The four L-shaped guide rods (303) are fixedly connected to the top of the two sides of the pressure block (302) respectively. The L-shaped support (3) is slidably sleeved on the four L-shaped guide rods (303).

7. The bending and shaping device for processing dining chairs according to claim 5, characterized in that: Both of the two transverse sliding seats (103) have threaded through holes on their adjacent sides, and the threaded through holes are threadedly connected to the corresponding screws (102).

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