Pneumatic supporting roller line for seat backrest

Abstract

The utility model relates to the technical field of seat processing equipment, in particular to a seat backrest pneumatic supporting roller line which comprises a main body support, a roller conveying assembly and a pneumatic supporting assembly. The main support is fixed to the ground, and a roller conveying assembly is arranged at the upper end of the main support. The pneumatic supporting assembly comprises an air cylinder, a movable supporting frame and a fixed support. Two ends of the fixed bracket are fixedly mounted on the main body bracket; the near fixed end of the movable supporting frame is hinged to the fixed support, and the far fixed end of the movable supporting frame is hinged to the end of a piston rod of the air cylinder. The bottom of the air cylinder is hinged to the body support. The telescopic movement of the cylinder piston rod drives the movable support frame to rotate around the hinge point near the fixed end, so that the angle adjustment of the movable support frame is realized. According to the utility model, the seat backrest is turned over upwards from a lying flat state through the pneumatic supporting assembly, so that a worker can process the seat backrest without bending down, and physical fatigue and injury caused by long-time bending down for working are reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of seat processing equipment, specifically to a pneumatic support roller line for seat backrests. Background Technology

[0002] In the seating manufacturing industry, drilling holes and installing accessories on seat backs is a crucial step. Currently, workers typically need to bend over to process the seat backs lying flat on a conveyor belt. Maintaining this bent-over posture for extended periods easily leads to back pain and other physical discomfort, impacting both worker health and work efficiency.

[0003] Therefore, developing a pneumatic support roller line for seat backrests that can solve the above problems is of great practical significance. Utility Model Content

[0004] The purpose of this utility model is to provide a pneumatic support roller line for seat backs, which is particularly suitable for the processing of seat backs. Through the pneumatic support components, the seat backs are turned from a flat position to an upward flipped position, so that workers can process the seat backs without bending over, thus reducing the labor intensity of workers; thereby solving the technical problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pneumatic support roller line for a seat back, comprising a main support frame, a roller conveying assembly, and a pneumatic support assembly.

[0006] The main support is fixed to the ground, and a roller conveyor assembly is provided at the upper end of the main support.

[0007] The pneumatic support assembly includes a cylinder, a movable support frame, and a fixed bracket;

[0008] The two ends of the fixed bracket are fixedly installed on the main bracket; the near fixed end of the movable support frame is hinged to the fixed bracket, and the far fixed end of the movable support frame is hinged to the end of the cylinder piston rod; the bottom of the cylinder is hinged to the main bracket; the extension and retraction movement of the cylinder piston rod drives the movable support frame to rotate around the hinge point near the fixed end, thereby realizing the angle adjustment of the movable support frame.

[0009] Furthermore, the fixed support includes a fixed connecting rod, a first rotating shaft, and bearing seats; both ends of the fixed connecting rod are fixedly mounted on the main support; there are four bearing seats, which are spaced apart on the fixed connecting rod; the bottom of the bearing seats is fixedly connected to the fixed connecting rod; the four bearing seats are vertically upward, and the first rotating shaft passes through the bearings on the four bearing seats in sequence; the near-fixed end of the movable support frame is fixedly connected to the first rotating shaft; the first rotating shaft serves as the rotation axis for the movable support frame to rotate.

[0010] Furthermore, the roller conveying assembly is a roller conveyor belt; the roller conveying assembly includes multiple rollers arranged side by side and a transmission structure; both ends of the rollers are rotatably connected to the main support through bearings; one end of the roller is connected to the transmission structure.

[0011] Furthermore, the movable support frame includes multiple frame structures arranged side by side and a second rotating shaft, wherein the thickness of a single frame structure is less than the distance between adjacent rollers on the roller conveyor assembly.

[0012] The multiple side-by-side frame structures are perpendicular to the second rotating shaft, and the multiple side-by-side frame structures are connected in sequence through the second rotating shaft to form a whole.

[0013] Furthermore, it also includes a tilt angle limiting frame; the tilt angle limiting frame is disposed above the first rotating shaft and is arranged parallel to the first rotating shaft; the tilt angle limiting frame and the first rotating shaft are connected by several connecting pieces; the movable support frame is rotated upward under the drive of the cylinder, and one end of the movable support frame near the tilt angle limiting frame is attached to the tilt angle limiting frame.

[0014] Furthermore, it also includes a front limiting bracket for the seat back; the front limiting bracket is located on the top of the main support near the fixed bracket.

[0015] Beneficial effects

[0016] This invention uses a pneumatic support component to change the seat back from a flat position to an upward flip position, allowing workers to process the seat back without bending over. This greatly reduces the labor intensity of workers, reduces physical fatigue and injury caused by prolonged bending over, and improves workers' work comfort and efficiency.

[0017] This invention can change the maximum tilt angle of the movable support frame by adjusting the height of the connecting piece between the tilt angle limiting frame and the first rotating shaft, thereby meeting the requirements of different processing techniques for the tilt angle of the seat back, enhancing the adaptability of the equipment, and enabling it to be applied to various seat back processing scenarios. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is the overall structural diagram of the pneumatic support roller line for the seat back disclosed in this utility model;

[0020] Figure 2 yes Figure 1 Side view;

[0021] Figure 3 This is an internal structural diagram of the pneumatic support roller line for the seat back disclosed in this utility model;

[0022] Figure 4 This is a frontal view of the pneumatic support assembly of the pneumatic support roller line for the seat back disclosed in this utility model.

[0023] Figure 5 This is a reverse view of the pneumatic support assembly of the pneumatic support roller line for the seat back disclosed in this utility model.

[0024] Figure 6 This is a side view of the pneumatic support assembly of the pneumatic support roller line for the seat back disclosed in this utility model, in the pitch state.

[0025] Figure 7 This is a structural diagram of the movable support frame of the pneumatic support roller line for seat back disclosed in this utility model.

[0026] In the picture:

[0027] 1. Main support frame; 2. Roller conveyor assembly; 3. Pneumatic support assembly; 4. Cylinder; 5. Movable support frame; 501. Frame structure; 502. Second rotating shaft; 6. Fixed support frame; 601. Fixed connecting rod; 602. First rotating shaft; 603. Bearing seat; 7. Inclined angle limiting frame; 8. Front limiting frame. Detailed Implementation

[0028] 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.

[0029] To achieve the above objectives, this utility model provides the following technical solution, such as... Figure 1-7 As shown, a pneumatic support roller conveyor for a seat back includes a main support frame 1, a roller conveying assembly 2, and a pneumatic support assembly 3.

[0030] The main support 1 is fixed on the ground, and a roller conveyor assembly 2 is provided at the upper end of the main support 1;

[0031] The pneumatic support assembly 3 includes a cylinder 4, an air source, a movable support frame 5, and a fixed bracket 6;

[0032] like Figure 1-3As shown, the two ends of the fixed bracket 6 are fixedly installed on the main bracket 1; the near fixed end of the movable support frame 5 is hinged to the fixed bracket 6, and the far fixed end of the movable support frame 5 is hinged to the end of the piston rod of the cylinder 4; the bottom of the cylinder 4 is hinged to the main bracket 1; the extension and retraction movement of the piston rod of the cylinder 4 drives the movable support frame 5 to rotate around the hinge point near the fixed end, thereby realizing the angle adjustment of the movable support frame 5.

[0033] Cylinder 4 is connected to an air source, commonly an air pump, which provides compressed gas to cylinder 4 as its power source, ensuring that cylinder 4 can extend and retract normally. When cylinder 4 is in the retracted state, it drives the movable support frame 5 to flip downwards. The top of the movable support frame 5 is lower than the height of the roller conveyor assembly 2, so it will not interfere with the transmission of the seat back on the roller conveyor assembly 2. When the seat back is transmitted to the upper part of the movable support frame 5, the roller conveyor assembly 2 stops moving. Cylinder 4 extends, driving the movable support frame 5 to flip upwards, and the movable support frame 5 drives the seat back to flip upwards at the same time. The back of the seat back rests on the movable support frame 5. The lower end of the seat back is blocked by the front limiting bracket 8.

[0034] It should be noted that a sensor is installed on the main support 1 near the pneumatic support assembly 3. When the sensor detects that the seat back has been conveyed above the movable support frame 5, the roller conveyor assembly 2 stops moving, and the cylinder 4 starts working to drive the movable support frame 5 to rotate. The specific principle of the sensor, as prior art, will not be elaborated in this application.

[0035] Furthermore, such as Figure 3-5 As shown, the fixed bracket 6 includes a fixed connecting rod 601, a first rotating shaft 602, and bearing seats 603. Both ends of the fixed connecting rod 601 are fixedly mounted on the main bracket 1. Four bearing seats 603 are spaced apart on the fixed connecting rod 601. The bottom of each bearing seat 603 is fixedly connected to the fixed connecting rod 601, and bearings are installed inside each bearing seat 603. The four bearing seats 603 are vertically upward-facing, and the first rotating shaft 602 passes through the bearings in the four bearing seats 603 sequentially. The near-fixed end of the movable support frame 5 is fixedly connected to the first rotating shaft 602. The first rotating shaft 602 serves as the rotation axis for the movable support frame 5. The fixed connecting rod 601 provides stable support for the first rotating shaft 602, ensuring that the movable support frame 5 can rotate smoothly around the first rotating shaft 602.

[0036] Furthermore, the roller conveyor assembly 2 is a common roller conveyor belt; it includes rollers arranged side by side, a transmission structure, and a power source; both ends of the rollers are rotatably connected to the main support 1 via bearings; one end of the roller is connected to the transmission structure; the transmission structure is connected to the power source to provide power for the rotation of the rollers; the rollers are cylindrical in shape, and their rotation drives the horizontal transmission of the seat, moving the seat back from its initial position to the designated processing position. The transmission structure varies in shape depending on the selected transmission method. For example, in chain drive, the chain is wrapped around the sprocket; the sprocket is connected to one end of the roller for transmission; in belt drive, the belt is a long strip wrapped around the pulley, and the pulley is connected to one end of the roller for transmission.

[0037] Furthermore, the movable support frame 5 includes multiple frame structures 501 arranged side by side and a second rotating shaft 502. In this embodiment, there are three frame structures 501; the thickness of a single frame structure 501 is less than the distance between adjacent rollers on the roller conveying assembly 2.

[0038] Three side-by-side frame structures 501 are perpendicularly arranged to the second rotating shaft 502. The side-by-side frame structures 501 are connected sequentially through the second rotating shaft 502 to form a whole that works together, enhancing the integrity and stability of the entire structure and enabling the three frame structures 501 to move synchronously.

[0039] Furthermore, such as Figure 3-5 As shown, it also includes a tilt angle limiting frame 7; the tilt angle limiting frame 7 is set above the first rotating shaft 602 and is parallel to the first rotating shaft 602; the tilt angle limiting frame 7 and the first rotating shaft 602 are connected by several connectors; when the movable support frame 5 is rotated upward under the drive of the cylinder 4, the end of the movable support frame 5 near the tilt angle limiting frame 7 finally overlaps the tilt angle limiting frame 7, at which time the movable support frame 5 reaches the maximum tilt angle; by selecting connectors of different heights to adjust the height of the tilt angle limiting frame 7, the final tilt angle of the movable support frame 5 is limited.

[0040] Furthermore, such as Figure 1-3 As shown, it also includes a front limiting frame 8; the front limiting frame 8 is located on the top of the main support 1 near the fixed support 6; the front limiting frame 8 is a rod-shaped structure or a plate-shaped structure; it has a certain height and length to effectively block the seat back;

[0041] When the movable support frame 5 flips upward, it causes the seat back on the movable support frame 5 to gradually stand up. The lower end of the seat back is blocked by the front limit frame 8 to prevent the seat back from sliding forward and falling outside the fixed bracket 6 during the process of gradually standing up, thus ensuring the stability and safety of the seat back during the processing.

[0042] The working principle and process are as follows:

[0043] The pneumatic support roller line for the seat back of this application provides the power for the seat back to move by the rotation of the rollers in the roller conveyor assembly 2, so that it can move stably from the starting position to the target position on the roller conveyor assembly 2.

[0044] The pneumatic support assembly 3 allows for adjustment of the seat back's working angle. An air source provides compressed gas to the cylinder 4, causing it to operate. When the piston rod of the cylinder 4 extends or retracts, it drives the movable support frame 5, which is hinged to it, to move. The near-fixed end of the movable support frame 5 is connected to the fixed bracket 6 via a first rotating shaft 602. When the piston rod of the cylinder 4 extends, the movable support frame 5 flips upward; when the piston rod retracts, the movable support frame 5 flips downward. This design allows the movable support frame 5 to flexibly change its angle under the drive of the cylinder 4, thereby causing the seat back placed on it to change its posture.

[0045] The tilt angle limiting bracket 7 and the front limiting bracket 8 serve to limit and control movement, providing protection. The tilt angle limiting bracket 7, through a connector with the first rotating shaft 602, restricts the maximum tilt angle of the movable support bracket 5. When the movable support bracket 5 tilts upwards to a position adjacent to the tilt angle limiting bracket 7, one end of it will overlap the limiting bracket, reaching the maximum tilt angle. By replacing connectors of different heights, the final tilt angle of the movable support bracket 5 can be adjusted to meet the specific requirements of different processing techniques for the seat back tilt angle. The front limiting bracket 8 is located at the top of the fixed bracket 6. When the movable support bracket 5 drives the seat back to tilt upwards, the front limiting bracket 8 can block the lower end of the seat back, preventing it from sliding forward during the standing process, thus avoiding the seat back exceeding its working range and ensuring the stability and safety of the seat back during processing.

[0046] Usage process

[0047] First, the power source is started, and the transmission structure drives the rollers to rotate. The seat backrest begins to move horizontally as the rollers rotate. When the sensor detects that the seat backrest has been moved above the movable support frame 5, the roller conveyor assembly 2 stops moving.

[0048] Then, the air source supplies air to cylinder 4, causing the piston rod of cylinder 4 to extend and push the movable support frame 5 to rotate upward around the first pivot 602. The movable support frame 5 drives the seat back to rotate upward synchronously until the movable support frame 5 reaches the maximum tilt angle limited by the tilt angle limit frame 7. During this process, the back of the seat back rests against the movable support frame 5, and the lower end of the seat back is blocked by the front limit frame 8, keeping the seat back stable in a tilted state.

[0049] Subsequently, workers can perform processing operations such as drilling and installing parts while the seat back is tilted. Because the seat back is at a suitable tilt angle, workers do not need to bend over, allowing them to complete processing tasks more conveniently and efficiently, thus improving processing quality.

[0050] Finally, after processing is complete, the piston rod of cylinder 4 retracts, the movable support frame 5 flips downward, and the seat back returns to a near-flat position. Subsequently, the roller conveyor assembly 2 restarts, conveying the processed seat back to the next process.

[0051] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A pneumatic support roller conveyor for a seat back, characterized in that: It includes a main support frame (1), a roller conveyor assembly (2), and a pneumatic support assembly (3); The main support (1) is fixed on the ground, and a roller conveyor assembly (2) is provided at the upper end of the main support (1); The pneumatic support assembly (3) includes a cylinder (4), a movable support frame (5), and a fixed bracket (6); The two ends of the fixed bracket (6) are fixedly installed on the main bracket (1); the near fixed end of the movable support frame (5) is hinged to the fixed bracket (6), and the far fixed end of the movable support frame (5) is hinged to the end of the piston rod of the cylinder (4); the bottom of the cylinder (4) is hinged to the main bracket (1); the extension and retraction movement of the piston rod of the cylinder (4) drives the movable support frame (5) to rotate around the hinge point near the fixed end, thereby realizing the angle adjustment of the movable support frame (5).

2. The pneumatic support roller line for seat backrests according to claim 1, characterized in that: The fixed support includes a fixed connecting rod (601), a first rotating shaft (602), and a bearing seat (603); both ends of the fixed connecting rod (601) are fixedly installed on the main support (1); there are four bearing seats (603), which are spaced apart on the fixed connecting rod (601); the bottom of the bearing seat (603) is fixedly connected to the fixed connecting rod (601); the four bearing seats (603) are vertically upward, and the first rotating shaft (602) passes through the bearings on the four bearing seats (603) in sequence; the near-fixed end of the movable support frame (5) is fixedly connected to the first rotating shaft (602); the first rotating shaft (602) serves as the rotating shaft for the movable support frame (5) to rotate.

3. The pneumatic support roller line for seat backrests according to claim 2, characterized in that: The roller conveyor assembly (2) is a roller conveyor belt; the roller conveyor assembly (2) includes multiple rollers arranged side by side and a transmission structure; both ends of the rollers are rotatably connected to the main support (1) through bearings; one end of the rollers is connected to the transmission structure.

4. The pneumatic support roller line for seat backrests according to claim 3, characterized in that: The movable support frame includes multiple frame structures (501) arranged side by side and a second rotating shaft (502). The thickness of a single frame structure (501) is less than the distance between adjacent rollers on the roller conveyor assembly (2). The multiple side-by-side frame structures (501) are perpendicular to the second rotating shaft (502), and the multiple side-by-side frame structures (501) are connected in sequence through the second rotating shaft (502) to form a whole.

5. The pneumatic support roller line for seat backrests according to claim 4, characterized in that: It also includes a tilt angle limiting frame (7); the tilt angle limiting frame (7) is set above the first rotating shaft (602) and is set parallel to the first rotating shaft (602); the tilt angle limiting frame (7) and the first rotating shaft (602) are connected by several connectors; the movable support frame (5) is flipped upward under the drive of the cylinder (4), and one end of the movable support frame (5) near the tilt angle limiting frame (7) is attached to the tilt angle limiting frame (7).

6. The pneumatic support roller line for seat backrests according to claim 1, characterized in that: It also includes a front limiting frame (8); the front limiting frame (8) is located on the top of the main support (1) on the side close to the fixed support (6).

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