Auxiliary bending device for folding chair production

Abstract

The utility model discloses an auxiliary bending device for folding chair production, which is characterized by comprising a base, a driving mechanism, a support frame, a U-shaped block and a positioning mechanism, the front side of a bending machine is connected with the base, the middle of the top of the base is provided with a sliding chute, the sliding chute is connected with the support frame in a sliding manner, the top of the base is provided with the driving mechanism, and the U-shaped block is connected with the U-shaped block. The supporting frame is connected with the driving mechanism, the rear side of the supporting frame is connected with two U-shaped blocks used for placing steel pipes, and the left side of the supporting frame is provided with a positioning mechanism used for positioning the placing positions of the steel pipes. The steel pipe bending device has the advantages that a steel pipe is supported and placed through the supporting frame and the U-shaped block, then the steel pipe is pushed to make contact with the baffle, and therefore it is guaranteed that the steel pipe bending position is fixed every time; the position of the baffle is adjusted by adjusting the position of the positioning frame, flexible positioning can be conducted according to the bending position of the steel pipe, the position of the positioning frame can be fixed through cooperation of a bolt strip and a limiting hole, and the positioning stability of the steel pipe is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of folding chair manufacturing technology, and in particular to an auxiliary bending device for folding chair manufacturing. Background Technology

[0002] A folding chair is a lightweight, stackable seat that is easy to move and saves space. Folding chairs are typically constructed from steel tubing and Oxford cloth or plastic. Taking a folding chair made of thickened steel tubing and Oxford cloth as an example, the steel tubing is powder-coated for rust prevention and a pleasing appearance, and structural mechanical treatments have been applied to key load-bearing areas, significantly enhancing its load-bearing capacity.

[0003] Bending the steel tubing for folding chairs is a crucial step in the manufacturing process. This requires specialized bending machinery with precise control systems and powerful motors to ensure the tubing is bent to the predetermined angle and shape. During bending, it's also essential to control the speed and force to avoid excessive damage or deformation to the tubing. However, existing bending machines generally only offer bending functionality and lack precise tubing positioning. The tubing's position is often inconsistent, relying on guesswork, which can lead to significant deviations in the bent length and negatively impact the overall quality of the folding chair production. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an auxiliary bending device for the production of folding chairs that can position and place steel pipes.

[0005] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: an auxiliary bending device for folding chair production, including a base, a drive mechanism, a support frame, U-shaped blocks and a positioning mechanism. The base is connected to the front side of the bending machine. A groove is opened in the middle of the top of the base. The support frame is slidably connected to the groove. The drive mechanism is set on the top of the base. The support frame is connected to the drive mechanism. Two U-shaped blocks for placing steel pipes are connected to the rear side of the support frame. A positioning mechanism for positioning the placement position of the steel pipe is set on the left side of the support frame.

[0006] A further preferred embodiment of this utility model is as follows: the drive mechanism includes a lead screw and a motor, the lead screw is rotatably connected in the slide groove, the motor is installed on the upper front side of the base, the output shaft of the motor is connected to the lead screw, and the support frame is threadedly connected to the lead screw.

[0007] A further preferred embodiment of this utility model is as follows: the positioning mechanism includes a positioning frame, a connecting plate and a baffle. The connecting plate is connected to the left side of the support frame, and the positioning frame is slidably connected to the connecting plate. The positioning frame is L-shaped, and the baffle is connected to the end of the positioning frame.

[0008] A further preferred embodiment of this utility model is as follows: it also includes a bolt and a return spring. Four limiting holes are evenly provided on the positioning frame. A bolt is slidably connected to the connecting plate. The bolt cooperates with the limiting holes. The bolt is inserted into the limiting holes to fix the position of the positioning frame. A return spring is connected between the bolt and the connecting plate.

[0009] A further preferred embodiment of this utility model is: it also includes an auxiliary roller, which is rotatably connected to the bottom of the U-shaped block, and the auxiliary roller enables the steel pipe to move smoothly.

[0010] A further preferred embodiment of this utility model is: it also includes an anti-slip pad, with the anti-slip pad connected to the bolt strip, and the anti-slip pad plays an anti-slip role.

[0011] A further preferred embodiment of this utility model is: it also includes a support rod, with the support rod connected to the left side of the positioning frame. The support rod is located on the right side of the baffle, and the support rod can support the left end of the steel pipe, increasing the stability of the steel pipe placement.

[0012] A further preferred embodiment of this utility model is: it also includes a rubber pad, and the right side of the baffle is connected to the rubber pad, which plays a buffering role to prevent the baffle from being damaged due to excessive force when the steel pipe moves.

[0013] Compared with the prior art, the advantages of this utility model are that the steel pipe is supported and placed by the support frame and U-shaped block, and then the steel pipe is pushed to contact the baffle, thereby ensuring that the position of the steel pipe is fixed each time it is bent; by adjusting the position of the positioning frame, the position of the baffle is adjusted, so that the steel pipe can be flexibly positioned according to the bending position of the steel pipe, and the cooperation between the bolt and the limiting hole can fix the position of the positioning frame, ensuring the stability of the steel pipe positioning. Attached Figure Description

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a three-dimensional structural diagram of the present invention from another angle;

[0017] Figure 3 This is a schematic diagram of the connection structure of the motor, lead screw and support frame of this utility model;

[0018] Figure 4 This is a three-dimensional structural diagram of the limiting hole, the return spring, and the bolt bar of this utility model;

[0019] Figure 5 This is a three-dimensional structural diagram of the positioning frame, support rod, and auxiliary roller of this utility model;

[0020] In the diagram: 1. Bending machine, 2. Base, 201. Slide groove, 3. Lead screw, 4. Motor, 5. Support frame, 6. U-block, 7. Positioning frame, 8. Connecting plate, 9. Baffle, 10. Limiting hole, 11. Bolt strip, 12. Return spring, 13. Auxiliary roller, 14. Anti-slip pad, 15. Support rod, 16. Rubber pad. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0022] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures.

[0023] This embodiment mainly describes the structure of the auxiliary bending device used in the production of folding chairs, as follows:

[0024] An auxiliary bending device for folding chair production, such as Figure 1-3 As shown, the machine includes a base 2, a lead screw 3, a motor 4, a support frame 5, a U-shaped block 6, a positioning frame 7, a connecting plate 8, and a baffle 9. The base 2 is connected to the front side of the bending machine 1. A groove 201 is opened in the middle of the top of the base 2. The support frame 5 is slidably connected to the groove 201. The lead screw 3 is rotatably connected inside the groove 201. The motor 4 is bolted to the upper front side of the base 2. The output shaft of the motor 4 is connected to the lead screw 3. The support frame 5 is threaded to the lead screw 3. Two U-shaped blocks 6 for placing steel pipes are connected to the rear side of the support frame 5. The connecting plate 8 is connected to the left side of the support frame 5. The positioning frame 7 is slidably connected to the connecting plate 8. The positioning frame 7 is L-shaped. The baffle 9 is connected to the end of the positioning frame 7.

[0025] like Figure 4 and Figure 5 As shown, it also includes a bolt 11 and a return spring 12. The positioning frame 7 has four limit holes 10 evenly distributed. The bolt 11 is slidably connected to the connecting plate 8. The bolt 11 cooperates with the limit hole 10. The bolt 11 is inserted into the limit hole 10 to fix the position of the positioning frame 7. The return spring 12 is connected between the bolt 11 and the connecting plate 8.

[0026] like Figure 5As shown, it also includes an auxiliary roller 13. The auxiliary roller 13 is rotatably connected to the bottom of the U-shaped block 6, and the auxiliary roller 13 enables the steel pipe to move smoothly.

[0027] like Figure 5 As shown, it also includes an anti-slip pad 14, which is connected to the bolt 11 and serves to prevent slipping.

[0028] like Figure 5 As shown, it also includes a support rod 15. The left side of the positioning frame 7 is connected to the support rod 15. The support rod 15 is located on the right side of the baffle 9. The support rod 15 can support the left end of the steel pipe and increase the stability of the steel pipe placement.

[0029] like Figure 5 As shown, it also includes a rubber pad 16. The right side of the baffle 9 is connected to the rubber pad 16, which serves as a buffer to prevent the baffle 9 from being damaged due to excessive force when the steel pipe moves.

[0030] When using the auxiliary bending device for folding chair production, first adjust the position of the baffle 9 according to the length of the steel pipe, pull the bolt 11 forward, deform the return spring 12, and then pull the positioning frame 7 to move, thereby driving the baffle 9 to move. After the baffle 9 moves to the appropriate position, release the bolt 11. Under the action of the return spring 12, the bolt 11 inserts into the corresponding limit hole 10 to fix the positioning frame 7. Then place the steel pipe on the two U-shaped blocks 6. The U-shaped blocks 6 can support the steel pipe. Then push the steel pipe to the left so that the left end of the steel pipe contacts the baffle 9. The auxiliary roller 13 can ensure the smooth movement of the steel pipe, while the rubber pad 16 can play a certain buffering role to prevent the baffle 9 from being damaged due to excessive force when the steel pipe moves. The support rod 15 can support the left end of the steel pipe. In this way, the position of the baffle 9 is adjusted according to the bending position of the steel pipe to ensure that the steel pipe is placed in a fixed position each time, thereby achieving the positioning of the steel pipe.

[0031] Then, start motor 4 to drive lead screw 3 to rotate, thereby moving support frame 5 backward. Support frame 5 moves steel pipe backward to the work position of bending machine 1. Turn off motor 4 and start bending machine 1. Bending machine 1 first lifts the steel pipe upward and moves it out of U-shaped block 6. Then, it bends both ends of the steel pipe. At this time, start motor 4 to drive lead screw 3 to reverse, thereby moving support frame 5 and its components forward to reset. In this way, the positioned steel pipe is sent to the work position of bending machine 1 through support frame 5 for bending operation, ensuring that the bending position of each steel pipe is fixed, thereby improving the production quality of folding chairs.

[0032] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] The above provides a detailed description of the auxiliary bending device for folding chair production provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand this utility model and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to this utility model without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. An auxiliary bending device for folding chair production, characterized in that: The invention comprises a base (2), a driving mechanism, a support frame (5), a U-shaped block (6) and a positioning mechanism. The front side of the bending machine (1) is connected to the base (2). A slide groove (201) is provided in the middle of the top of the base (2). The support frame (5) is slidably connected to the slide groove (201). The top of the base (2) is provided with a driving mechanism. The support frame (5) is connected to the driving mechanism. The support frame (5) is connected to a U-shaped block (6) for placing a steel pipe. The support frame (5) is provided with a positioning mechanism for positioning the placement position of the steel pipe.

2. The auxiliary bending device for folding chair production according to claim 1, characterized in that: The driving mechanism comprises a screw rod (3) and a motor (4); the screw rod (3) is rotatably connected in the slide groove (201); the motor (4) is mounted on the base (2); the output shaft of the motor (4) is connected to the screw rod (3); and the support frame (5) is threadedly connected to the screw rod (3).

3. The auxiliary bending device for folding chair production according to claim 1, characterized in that: The positioning mechanism comprises a positioning frame (7), a connecting plate (8) and a baffle (9); one side of the support frame (5) is connected to the connecting plate (8); the positioning frame (7) is slidably connected to the connecting plate (8); and the end of the positioning frame (7) is connected to the baffle (9).

4. The auxiliary bending device for folding chair production according to claim 3 is characterized in that: It also includes a bolt strip (11) and a reset spring (12); at least two limiting holes (10) are evenly arranged on the positioning frame (7); the bolt strip (11) is slidably connected to the connecting plate (8); the bolt strip (11) and the limiting holes (10) cooperate; and a reset spring (12) is connected between the bolt strip (11) and the connecting plate (8).

5. The auxiliary bending device for folding chair production according to claim 1, characterized in that: It also includes an auxiliary roller (13), and the bottom of the U-shaped block (6) is rotatably connected to the auxiliary roller (13).

6. The auxiliary bending device for producing folding chairs according to claim 4, characterized in that: It also includes an anti-skid pad (14), and the bolt strip (11) is connected with the anti-skid pad (14).

7. The auxiliary bending device for folding chair production according to claim 3, characterized in that: It also includes a support rod (15), and the positioning frame (7) is connected to the support rod (15).

8. The auxiliary bending device for folding chair production according to claim 3, characterized in that: It also includes a rubber pad (16), and the side of the baffle (9) is connected to the rubber pad (16).

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