A pipeline plastic box turnover device

Abstract

This invention discloses a plastic box turning device for an assembly line, comprising a belt conveyor line, a base at the bottom of the belt conveyor line, side plates on the top of both sides of the base, and a lifting seat on the side of the side plates that are far apart from each other. The assembly line plastic box turning device also includes a clamping assembly positioned above the belt conveyor line. This invention relates to the field of plastic box production equipment technology. Through the cooperation of the belt conveyor line, base, side plates, lifting seat, clamping assembly, spacing adjustment assembly, and guide limiting assembly, plastic boxes conveyed to a designated position are fixed by clamping. Driven by a servo motor, the clamped plastic boxes are turned 180 degrees, realizing automated turning of plastic boxes and meeting the turning and conveying needs of plastic boxes of different specifications. This ensures the smooth conveying of the turned plastic boxes to subsequent processes, improving overall production efficiency and product qualification rate.

Description

Technical Field

[0001] This invention relates to the field of plastic box production equipment technology, specifically a plastic box turning device for an assembly line. Background Technology

[0002] Plastic crates are multifunctional containers made primarily of high-density polyethylene (HDPE) or polypropylene (PP) through injection molding. They are widely used in logistics, warehousing, industrial turnover, and household storage. The production of plastic crates involves multiple processing steps, some of which require a 180° flip to complete processing, inspection, or transfer. Therefore, specialized flipping devices are needed on plastic crate production lines to perform these operations. Traditional plastic crate flipping devices mostly use cylinders with rotating shafts, and the clamping brackets fixed to the shafts need to match the crate dimensions.

[0003] In existing technologies, when producing plastic boxes of different sizes, it is necessary to change the brackets of different sizes, which cannot quickly adapt to the flipping requirements of plastic boxes of different sizes. Furthermore, the cylinder-driven flipping process has a large impact, and the plastic boxes are prone to shaking or even slipping during the flipping process. This not only affects the smoothness of the flipping operation, but may also cause the plastic boxes to be bumped and damaged. At the same time, it is difficult to ensure the stable positioning of the plastic boxes after flipping, which affects the normal progress of subsequent production line processes, reduces overall production efficiency and product qualification rate.

[0004] Therefore, there is an urgent need for a production line plastic box flipping device that can adapt to plastic boxes of different sizes, and has a stable flipping process and high positioning accuracy, in order to solve the problems of poor adaptability, insufficient flipping stability and low positioning accuracy of existing devices. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a plastic box flipping device for production lines. This solves the problem that in existing technologies, when producing plastic boxes of different sizes, different sized supports need to be replaced, making it impossible to quickly adapt to the flipping requirements of different sized plastic boxes. Furthermore, the cylinder-driven flipping process involves significant impact, causing the plastic boxes to shake or even slip during the flipping process. This not only affects the smoothness of the flipping operation but may also cause damage to the plastic boxes. Additionally, it is difficult to ensure stable positioning of the plastic boxes after flipping, affecting the normal progress of subsequent production line processes and reducing overall production efficiency and product qualification rate.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a plastic box turning device for a production line, comprising a belt conveyor line, a base at the bottom of the belt conveyor line, side plates on the top of both sides of the base, and a lifting seat on the side of the side plates that are far apart from each other. The plastic box turning device also includes a clamping assembly positioned above the belt conveyor line; a spacing adjustment assembly positioned on the side of the lifting seat that is close to each other; and a guide and limiting assembly positioned at the top of the belt conveyor line. The clamping assembly clamps and fixes the plastic box conveyed to a designated position and drives the plastic box to rotate 180 degrees around a designated axis. The spacing adjustment assembly can adjust the lateral working spacing of the clamping assembly to accommodate plastic boxes of different sizes and specifications. The guide and limiting assembly guides and limits the plastic box during the conveying process.

[0007] Preferably, the clamping assembly includes a square tube disposed on one side of two lifting seats that are close to each other; a connecting shaft is fixedly connected to both ends of the square tube and rotatably connected to the inner wall of the lifting seat; a first servo motor is fixedly connected to the outer wall of one lifting seat and its output end is drivenly connected to the connecting shaft; two first connecting seats are disposed, distributed at both ends of the outer wall of the square tube; a second connecting seat is fixedly connected to the end of the first connecting seat away from the square tube; a clamping plate is disposed on one side of the two second connecting seats that are close to each other; a clamping drive assembly is disposed on the side of the second connecting seat away from the clamping plate; a sensing assembly is disposed on the top of the belt conveyor line on one side of the lifting seat; wherein, the clamping plate is driven by the clamping drive assembly to clamp the plastic box, the first servo motor drives the connecting shaft to rotate, thereby causing the square tube and the clamped plastic box to rotate 180 degrees around the connecting shaft as the axis, realizing the flipping operation of the plastic box, and the sensing assembly detects the conveying position and clamping status of the plastic box.

[0008] Preferably, the clamping drive assembly includes a servo cylinder, which is fixedly connected to the side of the second connecting seat away from the clamping plate, and its output end passes through the second connecting seat and is fixedly connected to the clamping plate; a guide rod is fixedly connected to the clamping plate on both sides of the servo cylinder and slidably connected to the inner wall of the second connecting seat; wherein, the servo cylinder provides power for the clamping action of the clamping plate and provides guidance for the movement of the clamping plate through the guide rod, so as to realize the stable clamping of the plastic box by the two clamping plates.

[0009] Preferably, the sensing components include a pressure sensor embedded in both sides of the clamping plate; a through-beam photoelectric sensor fixedly connected to the top of the belt conveyor on one side of the lifting seat; wherein, the pressure sensor monitors the clamping status of the plastic box by detecting the pressure between the clamping plate and the plastic box, and the through-beam photoelectric sensor detects the position of the plastic box at a designated position on the conveying path of the plastic box to determine whether the plastic box has been conveyed to the clamping position.

[0010] Preferably, the outer wall of the clamping plate is covered with an anti-slip pad on the side away from the second connecting seat.

[0011] Preferably, the spacing adjustment assembly includes a bidirectional screw, which is rotatably connected to the inside of the square tube, with one end away from the first servo motor passing through a connecting shaft; a flange connecting seat is fixedly connected to the outer wall of the connecting shaft away from the first servo motor; a second servo motor is fixedly connected to the outer wall of the flange connecting seat, and its output end is drivenly connected to the bidirectional screw; two movable seats are provided, respectively threaded to both ends of the bidirectional screw, fitted to the inner wall of the square tube, and fixedly connected to the first connecting seat; wherein, the second servo motor drives the bidirectional screw to rotate, causing the two movable seats to move synchronously along the inner wall of the square tube, either approaching or moving away from each other, thereby causing the two first connecting seats and the clamping plate to synchronously adjust the lateral spacing, realizing the adaptation to plastic boxes of different widths.

[0012] Preferably, the guide and limiting assembly includes two sets of fixed plates, which are respectively fixedly connected to the top of the belt conveyor on both sides of the lifting seat; a guide plate is located on the side of the two sets of fixed plates that are close to each other; multiple spacing adjustment screws are fixedly connected to the side of the guide plate near the fixed plate and penetrate the inner wall of the fixed plate; a locking nut is threadedly connected to the outer wall of the spacing adjustment screw on both sides of the fixed plate and is fitted to the fixed plate; a limiting rod is fixedly connected to the top of the belt conveyor on the side of the through-beam photoelectric sensor near the lifting seat; wherein, the guide plate guides the plastic box during the conveying process and the limiting rod blocks and limits the conveyed plastic box to prevent the plastic box from shifting or moving excessively and exceeding the clamping range; the spacing adjustment screw and the locking nut can adjust the fixed spacing between the two guide plates to adapt to plastic boxes of different widths.

[0013] Preferably, the base is internally equipped with a height adjustment component, which includes a first connecting rod fixedly connected to one side of two side plates that are close to each other; a ball screw disposed on one side of two side plates that are close to each other, with both ends rotatably connected to the base and the first connecting rod respectively; a third servo motor fixedly connected to the interior of the base, with its output end connected to the ball screw; a second connecting rod fixedly connected to the bottom of one side of two lifting seats that are close to each other, and passing through the side plate; a ball screw pair threadedly connected to the outer wall of the ball screw, and fixedly connected to the inner wall of the second connecting rod; and a guide component disposed on one side of the side plates and the lifting seats that are close to each other. The ball screw is driven to rotate by the third servo motor, which in turn drives the ball screw pair and the second connecting rod to move up and down, thereby causing the lifting seats and the clamping assembly to move up and down synchronously as a whole, thus adjusting the working height of the clamping assembly.

[0014] Preferably, the guide component includes multiple slide rails, which are fixedly connected to the side of the lifting seat near the side plate; multiple slide blocks are slidably connected to the outer wall of the slide rails and fixedly connected to the outer wall of the side plate; wherein, through the cooperation of the slide rails and slide blocks, the direction of lifting and lowering of the lifting seat is limited and guided, ensuring that the overall lifting and lowering process of the clamping component remains stable. Beneficial effects

[0015] This invention provides a plastic box flipping device for an assembly line. It offers the following advantages: This device, through the cooperation of a belt conveyor, base, side plates, lifting seat, clamping assembly, spacing adjustment assembly, and guide limiting assembly, clamps and fixes plastic boxes conveyed to a designated position. Driven by a servo motor, it performs a 180-degree flipping operation, enabling automated flipping of the plastic boxes. The clamping spacing can be quickly adjusted according to the size specifications of the plastic boxes without replacing clamping brackets of corresponding sizes. It also ensures stable positioning of the plastic boxes after flipping, thus meeting the flipping and conveying needs of plastic boxes of different sizes. Furthermore, it avoids shaking or slippage during flipping, as well as damage caused by excessive impact or deviation, ensuring smooth conveying of the flipped plastic boxes to subsequent processes. This contributes to improving the overall production efficiency and product qualification rate of plastic boxes.

[0016] Through the cooperation between the base, side plate, lifting seat, first connecting rod, ball screw, third servo motor, second connecting rod, ball screw pair and guide assembly, the working height of the clamping assembly can be adjusted according to the actual height of the plastic box to adapt to the flipping operation of plastic boxes of different heights. This ensures that the clamping plate stably clamps the middle position of the side of the plastic box and avoids uneven force on the plastic box during the flipping process due to the offset of the clamping position. This can further improve the stability of the flipping operation and the adaptability of the equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the appearance of the present invention; Figure 3 This is a schematic diagram showing the external appearance of the belt conveyor, guide plate, and limiting rod in this invention; Figure 4 This is a schematic diagram showing the appearance of the base, square tube, and clamping drive assembly in this invention; Figure 5 This is a cross-sectional view of the second connecting seat, clamping plate, and pressure sensor in this invention. Figure 6 This is a cross-sectional view of the square tube, bidirectional screw, and movable seat of the present invention. Figure 7for Figure 3 A magnified view of a portion of region A in the middle; Figure 8 for Figure 4 A magnified view of a portion of region B in the middle.

[0018] Explanation of reference numerals in the attached drawings: 1. Belt conveyor; 2. Base; 3. Side plate; 4. Lifting seat; 5. Clamping assembly; 6. Spacing adjustment assembly; 7. Guide and limit assembly; 8. Height adjustment assembly; 51. Square tube; 52. Connecting shaft; 53. First servo motor; 54. First connecting seat; 55. Second connecting seat; 56. Clamping plate; 57. Clamping drive assembly; 58. Sensing assembly; 59. Anti-slip pad; 571. Servo cylinder; 572. Guide rod; 581. Pressure sensor; 582, Through-beam photoelectric sensor; 61, Bidirectional screw; 62, Flange connector; 63, Second servo motor; 64, Moving seat; 71, Fixed plate; 72, Guide plate; 73, Gap adjustment screw; 74, Locking nut; 75, Limiting rod; 81, First connecting rod; 82, Ball screw; 83, Third servo motor; 84, Second connecting rod; 85, Ball screw pair; 86, Guide assembly; 861, Slide rail; 862, Slide base. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In existing technologies, when producing plastic boxes of different sizes, it is necessary to change the brackets of different sizes, which cannot quickly adapt to the flipping requirements of plastic boxes of different sizes. Furthermore, the cylinder-driven flipping process has a large impact, and the plastic boxes are prone to shaking or even slipping during the flipping process. This not only affects the smoothness of the flipping operation, but may also cause the plastic boxes to be bumped and damaged. At the same time, it is difficult to ensure the stable positioning of the plastic boxes after flipping, which affects the normal progress of subsequent production line processes, reduces overall production efficiency and product qualification rate.

[0021] In view of this, the present invention provides a plastic box flipping device for an assembly line. Through the cooperation of a belt conveyor, base, side plate, lifting seat, clamping assembly, spacing adjustment assembly, and guide limiting assembly, the device clamps and fixes the plastic boxes conveyed to a designated position. Driven by a servo motor, the clamped plastic boxes are flipped 180 degrees, achieving automated flipping. The clamping spacing can be quickly adjusted according to the size specifications of the plastic boxes without replacing clamping brackets of corresponding sizes. The spacing adjustment of the guide limiting assembly ensures stable positioning of the plastic boxes after flipping, thus meeting the flipping and conveying needs of plastic boxes of different sizes. It also prevents the plastic boxes from shaking or slipping during flipping, and avoids damage caused by excessive impact or deviation, ensuring smooth conveying of the flipped plastic boxes to subsequent processes, improving overall production efficiency and product qualification rate.

[0022] Those skilled in the art can connect the components in this case sequentially. The specific connection and operation sequence should refer to the working principle described below. The detailed connection methods are well-known technologies in the field. The working principle and process are mainly described below.

[0023] Depend on Figure 1-8 It is known that a plastic box turning device for a production line includes a belt conveyor line 1, a base 2 at the bottom of the belt conveyor line 1, side plates 3 on the top of both sides of the base 2, and a lifting seat 4 on the side of the side plates 3 that are far apart from each other. The plastic box turning device also includes a clamping component 5, a spacing adjustment component 6, and a guide and limiting component 7. The clamping component 5 is located above the belt conveyor line 1; the spacing adjustment component 6 is located on the side of the lifting seat 4 that is close to each other; and the guide and limiting component 7 is located on the top of the belt conveyor line 1. The clamping component 5 clamps and fixes the plastic box conveyed to the designated position and drives the plastic box to rotate 180 degrees around the designated pivot. The spacing adjustment component 6 can adjust the lateral working spacing of the clamping component 5 to adapt to plastic boxes of different sizes and specifications. The guide and limiting component 7 guides and limits the plastic box during the conveying process. In the specific implementation process, it is worth noting that the belt conveyor 1 is used to transport plastic boxes and connects with the processing lines of the upstream and downstream processes of the plastic boxes to achieve continuous operation in conjunction with the overall production line. Through the cooperation of the base 2, side plates 3, lifting seats 4, and clamping components 5, with the clamping components 5 installed between the two lifting seats 4, the clamping components 5 clamp the plastic boxes conveyed to the belt conveyor 1 above it. Driven by a motor, the plastic boxes are rotated 180 degrees, achieving automatic flipping to meet subsequent production processing needs. The spacing adjustment component 6 allows for convenient adjustment of the working spacing of the clamping components 5 without replacing the entire clamping bracket, quickly adapting to plastic boxes of different widths. The guide and limit component 7 guides and limits the plastic boxes during the conveying process, preventing deviation in the conveyed position and ensuring that the plastic boxes accurately enter the clamping area. To improve the positioning accuracy after flipping, the system utilizes the cooperation of belt conveyor 1, base 2, side plate 3, lifting seat 4, clamping assembly 5, spacing adjustment assembly 6, and guide limit assembly 7 to fix the plastic box conveyed to the designated position through clamping. Driven by a servo motor, the clamped plastic box is flipped 180 degrees, achieving automated flipping. The clamping spacing can be quickly adjusted according to the size specifications of the plastic box without replacing the corresponding size clamping bracket. The spacing adjustment of the guide limit assembly 7 ensures stable positioning of the plastic box after flipping, meeting the flipping and conveying needs of plastic boxes of different sizes. This also prevents the plastic box from shaking or slipping during flipping, and avoids damage caused by excessive impact or deviation, ensuring smooth conveying of the flipped plastic box to subsequent processes, improving overall production efficiency and product qualification rate.

[0024] Furthermore, the clamping assembly 5 includes a square tube 51, a connecting shaft 52, a first servo motor 53, a first connecting seat 54, a second connecting seat 55, a clamping plate 56, a clamping drive assembly 57, and a sensing assembly 58. The square tube 51 is disposed on one side of the two lifting seats 4 that are close to each other. The connecting shaft 52 is fixedly connected to both ends of the square tube 51 and rotatably connected to the inner wall of the lifting seat 4. The first servo motor 53 is fixedly connected to the outer wall of one of the lifting seats 4, and its output end is drivenly connected to the connecting shaft 52. Two first connecting seats 54 are disposed at both ends of the outer wall of the square tube 51. The second connecting seat 55 is fixedly connected to the first connecting seat 54 away from the square tube. One end of 51; a clamping plate 56 is disposed on the side of the two second connecting seats 55 that are close to each other; a clamping drive assembly 57 is disposed on the side of the second connecting seat 55 that is away from the clamping plate 56; a sensing assembly 58 is disposed on the top of the belt conveyor line 1 on the side of the lifting seat 4; wherein, the clamping plate 56 is driven by the clamping drive assembly 57 to clamp the plastic box, the first servo motor 53 drives the connecting shaft 52 to rotate, thereby causing the square tube 51 and the clamped and fixed plastic box to rotate 180 degrees around the connecting shaft 52 as the axis, so as to realize the flipping operation of the plastic box; the sensing assembly 58 will detect the conveying position and clamping status of the plastic box; In the specific implementation process, it is worth noting that the clamping plate 56 and the clamping drive assembly 57 are fixed to the first connecting seat 54 on the square tube 51 through the second connecting seat 55, forming two opposing clamping structures. After the plastic box is delivered to the position, the clamping drive assembly 57 pushes the two clamping plates 56 closer to each other to clamp the middle of both sides of the plastic box. By controlling the first servo motor 53, the connecting shaft 52 and the square tube 51 are driven to rotate, causing the entire clamping structure and the clamped plastic box to rotate 180 degrees around the axis of the connecting shaft 52. After rotating to the position, the clamping of the plastic box is released, and the plastic box continues to be transported backward through the belt conveyor 1. The sensing component 58 is used to detect the position of the plastic box at a designated location, triggering subsequent clamping and rotating operations, and monitoring the clamping status of the plastic box during the clamping process. The specific model of the first servo motor 53 is not limited, as long as it meets the usage requirements.

[0025] Furthermore, the clamping drive assembly 57 includes a servo cylinder 571 and a guide rod 572. The servo cylinder 571 is fixedly connected to the side of the second connecting seat 55 away from the clamping plate 56, and its output end passes through the second connecting seat 55 and is fixedly connected to the clamping plate 56. The guide rod 572 is fixedly connected to both sides of the clamping plate 56 located on the servo cylinder 571 and is slidably connected to the inner wall of the second connecting seat 55. The servo cylinder 571 provides power for the clamping action of the clamping plate 56 and guides the movement of the clamping plate 56 through the guide rod 572, thereby realizing the stable clamping of the plastic box by the two clamping plates 56. In the specific implementation process, it is worth noting that, through the cooperation between the second connecting seat 55, the clamping plate 56, the servo cylinder 571, and the guide rod 572, after the plastic box is transported to the clamping position, the control system automatically controls the servo cylinder 571 to push the clamping plate 56 to move towards the plastic box. The guide rod 572 limits and guides the movement direction of the clamping plate 56, so that the two clamping plates 56 can stably clamp the plastic box on both sides, which can improve the stability of the plastic box during the flipping process. Compared with the traditional bracket limit, it avoids the plastic box from shifting or slipping during the flipping process, thereby reducing the probability of the plastic box being damaged by impact. The specific model of the servo cylinder 571 is not limited, as long as it meets the usage requirements.

[0026] Furthermore, the sensing component 58 includes a pressure sensor 581 and a through-beam photoelectric sensor 582. The pressure sensor 581 is embedded in both sides of the clamping plate 56; the through-beam photoelectric sensor 582 is fixedly connected to the top of the belt conveyor 1 on one side of the lifting seat 4. The pressure sensor 581 monitors the clamping status of the plastic box by detecting the pressure between the clamping plate 56 and the plastic box, and the through-beam photoelectric sensor 582 detects the position of the plastic box at a designated position on the conveying path of the plastic box to determine whether the plastic box has been conveyed to the clamping position. In the specific implementation process, it is worth noting that the pressure sensor 581 can detect the clamping pressure between the clamping plate 56 and the plastic box and feed the signal back to the control system so that the control system can monitor and adjust the clamping status and clamping pressure of the plastic box. The through-beam photoelectric sensor 582 is set at the clamping position of the plastic box. When the plastic box is transported to the designated position and blocks the through-beam light path of the through-beam photoelectric sensor 582, the control system determines that the plastic box has been transported to the correct position and triggers the subsequent clamping and flipping operations to realize the automated control of the clamping and flipping of the plastic box. The specific models of the pressure sensor 581 and the through-beam photoelectric sensor 582 are not limited, as long as they meet the usage requirements.

[0027] Furthermore, the outer wall of the clamping plate 56 is covered with an anti-slip pad 59 on the side away from the second connecting seat 55; In the specific implementation process, it is worth noting that the anti-slip mat 59 is made of anti-slip rubber material and has anti-slip texture, which can increase the friction between the clamping plate 56 and the surface of the plastic box, further preventing the plastic box from slipping during the flipping process, and at the same time playing a buffering and protective role on the clamping surface of the plastic box.

[0028] Furthermore, the spacing adjustment component 6 includes a bidirectional screw 61, a flange connecting seat 62, a second servo motor 63, and a movable seat 64. The bidirectional screw 61 is rotatably connected to the inside of the square tube 51, and the end away from the first servo motor 53 passes through the connecting shaft 52. The flange connecting seat 62 is fixedly connected to the outer wall of the connecting shaft 52 away from the first servo motor 53. The second servo motor 63 is fixedly connected to the outer wall of the flange connecting seat 62, and its output end is drivenly connected to the bidirectional screw 61. Two movable seats 64 are provided, respectively threaded to the two ends of the bidirectional screw 61, and connected to the inner wall of the square tube 51, and fixedly connected to the first connecting seat 54. The second servo motor 63 drives the bidirectional screw 61 to rotate, causing the two movable seats 64 to move synchronously along the inner wall of the square tube 51, moving closer to each other or further away from each other, thereby causing the two first connecting seats 54 and the clamping plate 56 to synchronously adjust the lateral spacing, so as to adapt to plastic boxes of different widths. In the specific implementation process, it is worth noting that through the cooperation between the square tube 51, the first connecting seat 54, the bidirectional screw 61, the flange connecting seat 62, the second servo motor 63, and the moving seat 64, the first connecting seat 54 is fixed to the moving seat 64 inside the square tube 51 by bolts. When it is necessary to adapt to plastic boxes of different widths, the second servo motor 63 is controlled to drive the bidirectional screw 61 to rotate. The two reverse threads at both ends of the bidirectional screw 61 drive the two moving seats 64 to move synchronously closer or further apart along the inner wall of the square tube 51, thereby driving the two first connecting seats 54 and the clamping plate 56 to adjust the spacing. Without the need for manual disassembly and replacement of clamping components, it is possible to quickly adapt to the clamping requirements of plastic boxes of different sizes, improving the work efficiency of switching processing of products of different specifications. The specific model of the second servo motor 63 is not limited, as long as it meets the usage requirements.

[0029] Furthermore, the guide and limiting assembly 7 includes a fixed plate 71, a guide plate 72, a spacing adjusting screw 73, a locking nut 74, and a limiting rod 75. Two sets of fixed plates 71 are provided, respectively fixedly connected to the top of the belt conveyor 1 on both sides of the lifting seat 4. The guide plate 72 is located on the side of the two sets of fixed plates 71 that are close to each other. Multiple spacing adjusting screws 73 are provided, fixedly connected to the side of the guide plate 72 close to the fixed plate 71, and penetrate the inner wall of the fixed plate 71. The locking nut 74 is threadedly connected to the outer wall of the spacing adjusting screw 73 located on the fixed plate 75. The two sides of the fixed plate 71 are connected to the fixed plate 71. The limiting rod 75 is fixedly connected to the top of the belt conveyor line 1 and is located on the side of the through-beam photoelectric sensor 582 near the lifting seat 4. The guide plate 72 guides the plastic box during the conveying process and blocks and limits the plastic box in place by the limiting rod 75 to prevent the plastic box from shifting or moving excessively and exceeding the clamping range. The spacing adjustment screw 73 and the locking nut 74 can adjust the fixed spacing of the two guide plates 72 to adapt to plastic boxes of different widths. In the specific implementation process, it is worth noting that through the cooperation between the belt conveyor 1, the fixed plate 71, the guide plate 72, the spacing adjustment screw 73, and the locking nut 74, the guide plate 72 is fixed on both sides of the top of the belt conveyor 1, forming a guide and limit on both sides of the plastic box conveying path, ensuring that the plastic box is conveyed along the preset path. When it is necessary to adapt to plastic boxes of different widths, the fixed position between the spacing adjustment screw 73 and the fixed plate 71 is adjusted by adjusting the locking nut 74, thereby changing the spacing between the two guide plates 72, thus adapting to the guiding requirements of plastic boxes of different widths. The limit rod 75 blocks and limits the plastic box after it is conveyed to the clamping position, preventing the plastic box from moving excessively due to conveying inertia.

[0030] Furthermore, the base 2 is internally equipped with a height adjustment assembly 8, which includes a first connecting rod 81, a ball screw 82, a third servo motor 83, a second connecting rod 84, a ball screw pair 85, and a guide assembly 86. The first connecting rod 81 is fixedly connected to one side of the two side plates 3 that are close to each other; the ball screw 82 is located on one side of the two side plates 3 that are close to each other, and its two ends are rotatably connected to the base 2 and the first connecting rod 81, respectively; the third servo motor 83 is fixedly connected inside the base 2, and its output end is driven by the ball screw 82; the second... The connecting rod 84 is fixedly connected to the bottom of the two lifting seats 4 on the side close to each other and passes through the side plate 3; the ball screw pair 85 is threadedly connected to the outer wall of the ball screw 82 and fixedly connected to the inner wall of the second connecting rod 84; the guide assembly 86 is set on the side of the side plate 3 and the lifting seat 4 close to each other; wherein, the ball screw 82 is driven to rotate by the third servo motor 83, which drives the ball screw pair 85 and the second connecting rod 84 to move up and down, thereby driving the lifting seat 4 and the clamping assembly 5 to move up and down synchronously as a whole, so as to adjust the working height of the clamping assembly 5; In the specific implementation process, it is worth noting that through the cooperation between the base 2, side plate 3, lifting seat 4, first connecting rod 81, ball screw 82, third servo motor 83, second connecting rod 84, ball screw pair 85, and guide assembly 86, the ball screw 82 is driven to rotate by controlling the third servo motor 83. Under the drive of the ball screw 82, the ball screw pair 85 is displaced vertically, thereby driving the second connecting rod 84 and the two lifting seats 4 to lift synchronously. The working height of the clamping assembly 5 can be adjusted according to the actual height of the plastic box, adapting to the flipping operation of plastic boxes of different heights and specifications. This ensures that the clamping plate 56 stably clamps the middle position of the side of the plastic box, avoiding uneven force on the plastic box during the flipping process due to the offset of the clamping position, further improving the stability of the flipping operation and the adaptability of the equipment. The specific model of the third servo motor 83 is not limited, as long as it meets the usage requirements.

[0031] Furthermore, the guide assembly 86 includes a slide rail 861 and a slide block 862. Multiple slide rails 861 are provided and are fixedly connected to the side of the lifting seat 4 near the side plate 3. Multiple slide blocks 862 are provided and are slidably connected to the outer wall of the slide rail 861 and fixedly connected to the outer wall of the side plate 3. The cooperation of the slide rail 861 and the slide block 862 limits and guides the direction of the lifting movement of the lifting seat 4, ensuring that the overall lifting process of the clamping assembly 5 remains stable. In the specific implementation process, it is worth noting that when the lifting seat 4 is adjusted to lift as a whole, the lifting seat 4 drives the slide rail 861 to move synchronously along the contact surface of the slide seat 862. Through the sliding cooperation between the slide rail 861 and the slide seat 862, the movement path of the lifting seat 4 is limited to prevent the lifting seat 4 from shifting horizontally during the lifting process.

[0032] The working principle of this application is illustrated below with a preferred embodiment: When the plastic box is conveyed to the belt conveyor line 1 and is conveyed forward by the belt conveyor line 1, the guide plates 72 on both sides guide the conveying path of the plastic box. When the plastic box is conveyed to the position of the through-beam photoelectric sensor 582, the light path of the through-beam photoelectric sensor 582 is blocked by the plastic box. The control system determines that the plastic box is in place. At the same time, the limit rod 75 blocks and limits the plastic box, so that the plastic box stops at the preset clamping position. Subsequently, the control system receives the sensing signal from the through-beam photoelectric sensor 582 and automatically controls the two servo cylinders 571 to synchronously push the clamping plate 56 towards the plastic box to clamp the middle of both sides of the plastic box. After receiving the pressure signal from the pressure sensor 581, the control system determines that the clamping of the plastic box is complete. Then, it automatically controls the first servo motor 53 to drive the connecting shaft 52 to rotate, thereby driving the square tube 51 and the clamped plastic box to rotate 180 degrees around the connecting shaft 52 as the axis, completing the clamping and flipping operation of the plastic box. After the plastic box rotates to the correct position, the servo cylinder 571 drives the clamping plate 56 to reset, releasing the clamp on the plastic box. The flipped plastic box is then placed back on the belt conveyor 1 for transport to the next process. Subsequently, the control system automatically controls the first servo motor 53 to drive the connecting shaft 52 to rotate 180 degrees in the opposite direction, driving the square tube 51 and the clamping plate 56 to reset to the initial position, waiting for the next plastic box to enter the clamping position. By repeating the above operation process, the continuous automated flipping operation of the plastic box can be realized. When processing plastic boxes of different sizes, the second servo motor 63 is controlled to drive the bidirectional screw 61 to rotate, thereby causing the two moving seats 64 to move synchronously inside the square tube 51. The two clamping plates 56 are adjusted to a suitable distance, and the distance between the two guide plates 72 is adjusted by locking the nut 74. The overall working height of the clamping assembly 5 is adjusted by the third servo motor 83, which can quickly complete the specification switching and thus quickly adapt to the flipping processing needs of plastic boxes of different sizes.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A plastic box turning device for an assembly line, comprising a belt conveyor line (1), characterized in that: The bottom of the belt conveyor (1) is provided with a base (2), and the top of both sides of the base (2) are provided with side plates (3). The side of the side plates (3) that are far apart from each other is provided with a lifting seat (4). The plastic box turning device of the production line also includes: The clamping assembly (5) is positioned above the belt conveyor line (1); The spacing adjustment component (6) is located on one side of the lifting seats (4) that are close to each other; A guide and limit assembly (7) is disposed at the top of the belt conveyor (1); The clamping component (5) clamps and fixes the plastic box conveyed to the designated position, and drives the plastic box to rotate 180 degrees around the designated pivot. The spacing adjustment component (6) can adjust the lateral working spacing of the clamping component (5) to adapt to plastic boxes of different sizes and specifications. The guide and limit component (7) guides and limits the plastic box during the conveying process.

2. The plastic box tilting device for an assembly line according to claim 1, characterized in that: The clamping assembly (5) includes: A square tube (51) is placed on one side of the two lifting seats (4) that are close to each other; The connecting shaft (52) is fixedly connected to both ends of the square tube (51) and rotatably connected to the inner wall of the lifting seat (4); The first servo motor (53) is fixedly connected to the outer wall of one of the lifting seats (4), and its output end is connected to the connecting shaft (52). Two first connecting seats (54) are provided, distributed at both ends of the outer wall of the square tube (51); The second connecting seat (55) is fixedly connected to the end of the first connecting seat (54) away from the square tube (51); A clamping plate (56) is disposed on one side of the two second connecting seats (55) that are close to each other; The clamping drive assembly (57) is disposed on the side of the second connecting seat (55) away from the clamping plate (56); The sensing component (58) is located on the top of the belt conveyor (1) on one side of the lifting seat (4); The clamping plate (56) is driven by the clamping drive assembly (57) to clamp the plastic box. The first servo motor (53) drives the connecting shaft (52) to rotate, thereby causing the square tube (51) and the clamped plastic box to rotate 180 degrees around the connecting shaft (52) as the axis, so as to realize the flipping operation of the plastic box. The sensing assembly (58) will detect the conveying position and clamping status of the plastic box.

3. The plastic box tilting device for an assembly line according to claim 2, characterized in that: The clamping drive assembly (57) includes: The servo cylinder (571) is fixedly connected to the side of the second connecting seat (55) away from the clamping plate (56), and its output end passes through the second connecting seat (55) and is fixedly connected to the clamping plate (56). The guide rod (572) is fixedly connected to the clamping plate (56) on both sides of the servo cylinder (571) and slidably connected to the inner wall of the second connecting seat (55); The servo cylinder (571) provides power for the clamping action of the clamping plate (56) and guides the movement of the clamping plate (56) through the guide rod (572), so as to realize the stable clamping of the plastic box by the two clamping plates (56).

4. The plastic box tilting device for an assembly line according to claim 2, characterized in that: The sensing component (58) includes: Pressure sensors (581) are embedded in both sides of the clamping plate (56); A through-beam photoelectric sensor (582) is fixedly connected to the top of the belt conveyor (1) on one side of the lifting seat (4); The pressure sensor (581) monitors the clamping status of the plastic box by detecting the pressure between the clamping plate (56) and the plastic box. The through-beam photoelectric sensor (582) detects the position of the plastic box at a designated position on the plastic box conveying path and determines whether the plastic box has been conveyed to the clamping position.

5. The plastic box turning device for a production line according to claim 2, characterized in that: The outer wall of the clamping plate (56) away from the second connecting seat (55) is covered with an anti-slip pad (59).

6. The plastic box tilting device for an assembly line according to claim 2, characterized in that: The spacing adjustment component (6) includes: A bidirectional screw (61) is rotatably connected to the inside of a square tube (51), and the end away from the first servo motor (53) passes through a connecting shaft (52). The flange connecting seat (62) is fixedly connected to the outer wall of the connecting shaft (52) away from the first servo motor (53); The second servo motor (63) is fixedly connected to the outer wall of the flange connecting seat (62), and its output end is driven connected to the bidirectional screw (61). Two movable seats (64) are provided, which are respectively threaded to the two ends of the bidirectional screw (61), connected to the inner wall of the square tube (51), and fixedly connected to the first connecting seat (54). The second servo motor (63) drives the bidirectional screw (61) to rotate, causing the two moving seats (64) to move synchronously along the inner wall of the square tube (51) towards each other or away from each other, thereby driving the two first connecting seats (54) and the clamping plate (56) to adjust the lateral spacing synchronously, so as to adapt to plastic boxes of different widths.

7. The plastic box tilting device for an assembly line according to claim 1, characterized in that: The guide limiting component (7) includes: The fixing plate (71) is provided in two sets, which are respectively fixedly connected to the top of the belt conveyor (1) on both sides of the lifting seat (4); Guide plate (72) is located on one side of the two sets of fixed plates (71) that are close to each other; Multiple spacing adjustment screws (73) are provided, which are fixedly connected to the guide plate (72) on the side near the fixed plate (71) and penetrate through the inner wall of the fixed plate (71); The locking nut (74) is threaded to the outer wall of the spacing adjusting screw (73) on both sides of the fixing plate (71) and is fitted to the fixing plate (71): The limiting rod (75) is fixedly connected to the top of the belt conveyor (1) on the side of the through-beam photoelectric sensor (582) near the lifting seat (4); The guide plate (72) guides the plastic box during the conveying process and the limiting rod (75) blocks and limits the plastic box in place to prevent the plastic box from shifting or moving excessively and exceeding the clamping range. The spacing adjustment screw (73) and the locking nut (74) can adjust the fixed spacing between the two guide plates (72) to adapt to plastic boxes of different widths.

8. The plastic box tilting device for an assembly line according to claim 1, characterized in that: The base (2) is provided with a height adjustment component (8), which includes: The first connecting rod (81) is fixedly connected to the side of the two side plates (3) that are close to each other; The ball screw (82) is located on one side of the two side plates (3) that are close to each other, and its two ends are rotatably connected to the base (2) and the first connecting rod (81) respectively. The third servo motor (83) is fixedly connected inside the base (2), and its output end is connected to the ball screw (82). The second connecting rod (84) is fixedly connected to the bottom of the two lifting seats (4) on the side that are close to each other, and passes through the side plate (3). The ball screw pair (85) is threaded to the outer wall of the ball screw (82) and fixedly connected to the inner wall of the second connecting rod (84); The guide assembly (86) is located on the side of the side plate (3) and the lifting seat (4) that are close to each other; The ball screw (82) is driven to rotate by the third servo motor (83), which in turn drives the ball screw pair (85) and the second connecting rod (84) to move up and down, thereby driving the lifting seat (4) and the clamping assembly (5) to move up and down synchronously as a whole, so as to adjust the working height of the clamping assembly (5).

9. A plastic box tilting device for an assembly line according to claim 8, characterized in that: The guide component (86) includes: Multiple slide rails (861) are provided and are fixedly connected to the side of the lifting seat (4) near the side plate (3); Multiple slide blocks (862) are provided, which are slidably connected to the outer wall of the slide rail (861) and fixedly connected to the outer wall of the side plate (3); The sliding rail (861) and the sliding block (862) work together to limit and guide the direction of the lifting seat (4) to ensure that the overall lifting process of the clamping assembly (5) remains stable.

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