A stacking aligning device and aligning method for automatic packaging of section steel arches

Abstract

The present application relates to the technical field of profiled steel arch processing, and particularly relates to a type steel arch automatic packing stacking alignment device and alignment method, which comprises a cross-over stacking mechanism, an anti-toppling mechanism and an alignment mechanism installed on a conveying rack; the cross-over stacking mechanism comprises a monitoring assembly installed on the conveying rack, and a first electric push rod and a second electric push rod are further installed on the conveying rack through a mounting assembly; a left push block is fixedly connected to a piston shaft of the first electric push rod, and a right push block is fixedly connected to a piston shaft of the second electric push rod. The present application has the effect of reducing manual cross-over stacking and alignment steps, does not need to stop operation in the whole alignment process, improves the overall stacking efficiency, reduces the labor cost, and improves the operation safety.

Description

Technical Field

[0001] This invention relates to the technical field of steel arch frame processing, and in particular to a stacking and alignment device and method for automatic packaging of steel arch frames. Background Technology

[0002] Steel arch frames (steel frames) are rigid support components used in the initial stages of tunnel and underground engineering. They are made of hot-rolled steel sections such as I-beams, H-beams, and U-beams, cold-bent into the arc shape of the tunnel outline, processed in multiple segments, and bolted together on-site to form a ring arch frame. Each stage of the steel arch frame consists of arc-shaped steel. The processing flow of the arc-shaped steel is as follows: 1. Cold bending is performed using a steel cold bending machine (hydraulic arch bending machine) to form the arch, with slow pressure applied; 2. Connecting plates are positioned at both ends of each steel section, and full welding is performed around them; stiffening plates are welded to reinforce the joints if necessary; the welds are full, without any incomplete welds, slag inclusions, or porosity, and the weld leg height meets the design requirements; 3. The arch is transferred from the production line to the packaging line for stacking and packaging.

[0003] Because of its curvature, the curved steel has two surfaces: a convex surface and a concave surface. When stacking, the concave surface faces down, and the two ends (straight edges) of the curved steel contact the pads or the lower layer of steel, providing two-point support. The center of gravity falls within the support range, making it less prone to rolling or slipping. However, when the concave surface faces up, the curved bottom surface contacts the steel, which is a line contact. Slight vibrations or collisions can easily cause the steel to roll and scatter, posing a risk of tipping over. Furthermore, with the groove facing down, rainwater can flow away directly, preventing water accumulation and reducing rust.

[0004] Because the steel arch frame has end plates installed at both ends, and the arch frame is an irregular arc-shaped member, aligning the baffles in the same direction will result in unilateral stress and a shift in the center of gravity of the bundled section. Therefore, when packing and stacking steel arch frames, the end plates on the same side of the steel arch frame need to be arranged crosswise, with the baffles at both ends forming a two-way limit and cross constraint. The outer contour of the entire bundle is close to a regular rectangle, and the upper and lower layers of arch frames are mutually locked, making it less likely to tip over or forklifts to move them when vehicles bump around or forklifts are used for transport. In the existing technology, steel arch frames are usually packed by manual alignment, which is inefficient and has high labor costs. Furthermore, because the steel arch frames are very heavy, with each frame weighing tens of kilograms, they are prone to slipping and tipping over when manually lifted, turned, and stacked, resulting in poor safety. Summary of the Invention

[0005] To improve the stacking efficiency of steel arch frames, reduce labor costs, and enhance operational safety, this application provides a stacking alignment device and method for automatic packaging of steel arch frames.

[0006] Firstly, this application provides a stacking and alignment device for automatic packaging of steel arch frames, which adopts the following technical solution: A stacking and alignment device for automatic packaging of steel arch frames includes a cross-stacking mechanism, an anti-tipping mechanism, and an alignment mechanism installed on a transport frame. The cross-stacking mechanism includes a monitoring component, which is mounted on the transport frame. A first electric push rod and a second electric push rod are also mounted on the transport frame via a mounting component. A left push block is fixedly connected to the piston shaft of the first electric push rod, and a right push block is fixedly connected to the piston shaft of the second electric push rod.

[0007] By adopting the above technical solution, when the first steel arch frame is detected, the first and second electric push rods are activated simultaneously. The first electric push rod, through the left push block, displaces the end plate of the steel arch frame on that side, while the second electric push rod moves the right push plate, limiting the end plate on the other side and reducing the probability of excessive displacement. At this time, the position distance of the left push block is greater than the displacement distance of the right push block. When the second steel arch frame is detected, the first and second electric push rods are activated simultaneously. The second electric push rod, through the right push block, displaces the end plate of the steel arch frame on that side, while the first electric push rod moves the left push plate. The end plate on the other side is limited to reduce the probability of excessive offset. At this time, the distance of the left push block is greater than the displacement distance of the right push block. Then, the process is repeated. After the steel arch frame is cross-stacked, it is aligned by the alignment mechanism. Therefore, the manual cross-stacking and alignment steps are reduced. No machine stop is required during the entire alignment process, which improves the overall stacking efficiency, reduces labor costs, and improves operational safety. Since the arc concave surface of the steel arch frame faces the transport frame during transportation, its contact with the transport frame is a line contact. Therefore, the setting of the two push blocks reduces the probability of the steel arch frame shifting or even tipping over due to increased friction on one side caused by pushing on one side.

[0008] Optionally, the monitoring component includes an infrared transmitter and an infrared receiver, which are respectively installed at the upper and lower ends of the transport frame. A PLC controller is also installed on the transport frame. The infrared transmitter and the infrared receiver are both communicatively connected to the PLC controller. The first electric push rod and the second electric push rod are both communicatively connected to the PLC controller.

[0009] By adopting the above technical solution, when the first steel arch passes between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive the rays emitted by the infrared transmitter. The infrared receiver feeds back the signal to the PLC controller. At this time, the PLC controller controls the first and second electric push rods to start simultaneously, and controls the extension distance of the piston shaft of the first electric push rod to be greater than the extension distance of the piston shaft of the second electric push rod. When the second steel arch passes between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive the rays emitted by the infrared transmitter. The infrared receiver feeds back the signal to the PLC controller. At this time, the PLC controller controls the first and second electric push rods to start simultaneously, and controls the extension distance of the piston shaft of the second electric push rod to be greater than the extension distance of the piston shaft of the first electric push rod. The above process is repeated as a working cycle, thereby realizing the cross-stacking of adjacent arc-shaped arches.

[0010] Optionally, the mounting assembly includes a slide rail fixedly connected to the transport frame, a slider slidably connected to the slide rail, a lifting plate fixedly connected to the slider, the first electric push rod and the second electric push rod both fixedly connected to the lifting plate, a motor also mounted on the transport frame, a lead screw fixedly connected to the output shaft of the motor, a lead screw nut installed inside the slider, and the lead screw and lead screw nut cooperating.

[0011] By adopting the above technical solution, since the bending curvature and length requirements of the steel arch frame are different in different working environments, when the bending curvature of the steel arch frame is large, the left and right push blocks cannot contact the end plate of the steel arch frame when they push, so limited cross-pushing cannot be achieved; the setting of the lifting plate realizes the lifting of the first electric push rod and the second electric push rod, and thus realizes the lifting of the left and right push blocks, making it suitable for steel arch frames with various curvatures and improving the applicability of the entire device.

[0012] Optionally, the anti-tipping mechanism includes a fixed plate, on which a third electric push rod is mounted via an adjusting assembly. A support rod is mounted on the piston shaft of the third electric push rod via a rotating assembly, and a support block is fixedly connected to the support rod.

[0013] By adopting the above technical solution, since the concave surface of the steel arch frame faces the transport frame during transportation, its contact with the transport frame is a line contact, resulting in limited friction. Furthermore, the end plates of the steel arch frame have numerous burrs on their edges due to cutting and welding during processing. Additionally, when adjusting the steel arch frame crosswise, because complete symmetry on the transport frame cannot be guaranteed, the left and right pushing blocks cannot simultaneously contact the end plates at both ends. Therefore, the friction at the end that contacts the end plate first increases, thus slowing down or stopping the forward speed at that end. However, this can easily lead to the steel arch frame tilting or collapsing. The support block provides support for the steel arch frame. When the steel arch frame is being cross-adjusted, the third electric push rod drives the support rod and support block to follow behind the steel arch frame in the forward direction. When the steel arch frame tilts, the support block supports it. After the cross adjustment is completed, the end plate separates from the left and right push blocks, and the steel arch frame returns to its normal transport state under its own weight. This reduces the probability of the steel arch frame tilting due to cross adjustment and ensures transport stability.

[0014] Optionally, the adjusting assembly includes a rotating shaft, which is fixedly connected to the third electric push rod. Both ends of the rotating shaft are rotatably connected to the fixed plate. A worm gear is fixedly connected to the rotating shaft, and a worm is rotatably connected to the fixed plate. The worm meshes with the worm gear.

[0015] By adopting the above technical solution, since the bending arc and length requirements of the steel arch frame are different in different working environments, when the bending arc of the steel arch frame is large, there is a situation where the support block and the support point of the steel arch frame are too low, thus failing to support the tilting steel arch frame. The setting of the rotating shaft realizes the rotation of the third electric push rod, thereby realizing the adjustment of the height of the support block, so that the entire device can support and prevent tilting of steel arch frames with different bending arcs, improving the applicability of the entire device.

[0016] Optionally, the rotating assembly includes a connecting plate, which is fixedly connected to the piston shaft of the third electric push rod, and the support rod is connected to the connecting plate by a limiting bolt and a limiting nut.

[0017] By adopting the above technical solution, when the third electric push rod rotates to adapt to the bending arc of the steel arch frame, the support angle of the support block also changes. When the tilt of the support block is too large, it will affect the state after the subsequent cross adjustment is completed, when the end plate separates from the left and right push blocks and the steel arch frame returns to its original state under its own weight. The setting of the limit bolt and limit nut enables the rotation of the support block, so that the support angle of the support block can also be adjusted after the third electric push rod rotates, so as not to affect the subsequent return of the steel arch frame under its own weight, further improving the applicability of the entire device.

[0018] Optionally, rotating rollers are rotatably connected to the end faces of the left and right push blocks that are far apart from each other.

[0019] By adopting the above technical solution, the end plates of the steel arch frame have more burrs on their edges due to cutting and welding during the processing, which increases the friction between this position and the left and right pushing blocks, increasing the risk of the steel arch frame tipping over. The setting of the rotating roller converts the sliding friction between the left and right pushing blocks and the end plates into rolling friction, reducing the friction at this position and further reducing the probability of the steel arch frame tipping over.

[0020] Optionally, the alignment mechanism includes a slide rail, which is installed at the discharge end of the conveyor frame and is inclined. A baffle is fixedly connected to the end of the slide rail away from the conveyor frame. A fourth electric push rod is installed on both sides of the slide rail, and an alignment push block is fixedly connected to the piston shaft of the fourth electric push rod.

[0021] By adopting the above technical solution, the cross-processed steel arch frame enters the slide through the transport frame and then slides to the other end of the slide under its own weight. When the steel arch frame accumulates to the required number for packaging, two fourth electric push rods are activated simultaneously, and the steel arch frame is aligned by two alignment push blocks; thus realizing the aligned stacking of the cross-processed steel arch frame.

[0022] On the other hand, this application provides a method for automatically aligning stacks of steel arch frames during packaging, employing the following technical solution: A method for automatically aligning and stacking steel arch frames during packaging includes the following steps: Step 1: When the first steel arch passes between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive the rays emitted by the infrared transmitter. The infrared receiver feeds back the signal to the PLC controller. At this time, the PLC controller controls the first electric push rod and the second electric push rod to start simultaneously, and controls the extension distance of the piston shaft of the first electric push rod to be greater than the extension distance of the piston shaft of the second electric push rod. Step 2: When the second steel arch passes between the infrared transmitter and the infrared receiver, the infrared receiver cannot receive the rays emitted by the infrared transmitter. The infrared receiver feeds back the signal to the PLC controller. At this time, the PLC controller controls the first electric push rod and the second electric push rod to start simultaneously, and controls the extension distance of the piston shaft of the second electric push rod to be greater than the extension distance of the piston shaft of the first electric push rod. Step 3: As the steel arch frame passes by, repeat steps 1 and 2. The PLC controller alternately controls the piston shaft extension distance of the first and second electric push rods. Step 4: When the steel arch frame is being cross-processed, the third electric push rod drives the support rod and support block to follow behind the steel arch frame in the direction of travel, reducing the probability of the steel arch frame tipping over. Step 5: The cross-processed steel arch frames are transported to the slide by the conveyor frame and then slide to the other end of the slide under their own weight. When the steel arch frames have accumulated to the required number for packaging, the two fourth electric push rods are activated simultaneously and the steel arch frames are aligned by two alignment push blocks, thereby realizing the aligned stacking of the cross-processed steel arch frames.

[0023] In summary, this application includes the following beneficial technical effects: 1. When the first steel arch passes between the infrared transmitter and receiver, the infrared receiver does not receive the emitted rays. The receiver sends a signal back to the PLC controller, which then controls the first and second electric push rods to start simultaneously, and controls the extension distance of the first electric push rod's piston shaft to be greater than the extension distance of the second electric push rod's piston shaft. When the second steel arch passes between the infrared transmitter and receiver, the infrared receiver also does not receive the emitted rays. It sends a signal back to the PLC controller, which then controls the extension distance of the first and second electric push rods to start simultaneously. Two electric push rods start simultaneously, and the extension distance of the piston shaft of the second electric push rod is controlled to be greater than that of the piston shaft of the first electric push rod. This process is repeated as a work cycle, thereby realizing the cross-stacking of adjacent arc-shaped arch frames. This reduces the steps of manual cross-stacking and alignment. No machine stop is required during the entire alignment process, which improves the overall stacking efficiency, reduces labor costs, and improves operational safety. Since the arc-shaped concave surface of the steel arch frame faces the transport frame during transportation, its contact with the transport frame is a line contact. Therefore, the setting of two push blocks reduces the probability of the steel arch frame shifting or even tipping over due to increased friction on one side caused by unilateral pushing. 2. Because the bending radius and length requirements of the steel arch frame vary in different working environments, when the bending radius of the steel arch frame is large, the left and right push blocks cannot contact the end plate of the steel arch frame when they push, thus failing to achieve limited cross-pushing. The lifting plate enables the lifting of the first and second electric push rods, thereby enabling the lifting of the left and right push blocks, making it suitable for steel arch frames with various curvatures and improving the applicability of the entire device. 3. Because the concave surface of the steel arch frame faces the transport frame during transportation, its contact with the frame is a line contact, resulting in limited friction. Furthermore, the end plates of the steel arch frame have numerous burrs on their edges due to cutting and welding during processing. When adjusting the steel arch frame's cross-section, complete symmetry on the transport frame cannot be guaranteed, so the left and right push blocks cannot simultaneously contact the end plates. Therefore, the friction at the end that contacts the end plate first increases, slowing down or stopping the forward speed at that end, which can easily lead to… The steel arch frame may tilt or even collapse. The support blocks provide support for the steel arch frame. When the steel arch frame is being cross-adjusted, the third electric push rod drives the support rod and support blocks to follow behind the steel arch frame in the direction of travel. When the steel arch frame tilts, the support blocks support it. After the cross-adjustment is completed, the end plate separates from the left and right push blocks, and the steel arch frame returns to its normal transport state under its own weight. This reduces the probability of the steel arch frame tilting due to cross-adjustment and ensures transport stability. 4. Since the bending radius and length requirements of the steel arch frame vary in different working environments, when the bending radius of the steel arch frame is large, there is a situation where the support block and the support point of the steel arch frame are too low, thus failing to support the tilting steel arch frame. The setting of the rotating shaft enables the rotation of the third electric push rod, thereby realizing the adjustment of the height of the support block. This allows the entire device to support and prevent the tilting of steel arch frames with different bending radii, improving the applicability of the entire device. 5. During the processing of the steel arch frame, the end plates have many burrs on their edges due to cutting and welding. This increases the friction between these areas and the left and right push blocks, increasing the risk of the steel arch frame tipping over. The rotating rollers convert the sliding friction between the left and right push blocks and the end plates into rolling friction, reducing the friction at these locations and further reducing the probability of the steel arch frame tipping over. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the stacking and alignment device for automatic packaging of steel arch frames in an embodiment of this application; Figure 2 This is a schematic diagram of the cross-stacking mechanism in the embodiments of this application; Figure 3 This is a side view of the cross-stacking mechanism in an embodiment of this application; Figure 4 This is a schematic diagram of the anti-tipping mechanism in the embodiments of this application; Figure 5 This is a schematic diagram of the rotating component in an embodiment of this application; Figure 6This is a schematic diagram of the alignment mechanism in an embodiment of this application.

[0025] Reference numerals: 1. Transport frame; 2. Steel arch frame; 3. Cross-stacking mechanism; 31. Monitoring component; 311. Infrared transmitter; 312. Infrared receiver; 313. PLC controller; 32. First electric push rod; 33. Second electric push rod; 34. Left push block; 35. Right push block; 36. Mounting component; 361. Lifting plate; 362. Slide rail; 363. Slider; 364. Motor; 365. Lead screw 4. Anti-tipping mechanism; 41. Fixing plate; 42. Third electric push rod; 43. Adjustment assembly; 431. Rotating shaft; 432. Worm gear; 433. Worm; 44. Support rod; 45. Support block; 46. Rotating assembly; 461. Connecting plate; 462. Limit bolt; 463. Limit nut; 47. Rotating roller; 5. Alignment mechanism; 51. Slide rail; 52. Baffle; 53. Fourth electric push rod; 54. Alignment push block. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0027] This application discloses a stacking and alignment device for automatic packaging of steel arch frames.

[0028] refer to Figure 1 A stacking and alignment device for automatic packaging of steel arch frames includes a cross-stacking mechanism 3, an anti-tipping mechanism 4, and an alignment mechanism 5 installed on a transport frame 1.

[0029] refer to Figure 2 and Figure 3 The cross-stacking mechanism 3 includes a monitoring component 31, which is mounted on the transport frame 1. The transport frame 1 is also equipped with a first electric push rod 32 and a second electric push rod 33 via a mounting component 36. A left push block 34 is fixedly connected to the piston shaft of the first electric push rod 32, and a right push block 35 is fixedly connected to the piston shaft of the second electric push rod 33. The monitoring component 31 includes an infrared transmitter 311 and an infrared receiver 312, which are respectively mounted at the upper and lower ends of the transport frame 1. A PLC controller 313 is also mounted on the transport frame 1. Both the infrared transmitter 311 and the infrared receiver 312 are communicatively connected to the PLC controller 313. Both the first electric push rod 32 and the second electric push rod 33 are communicatively connected to the PLC controller 313.

[0030] When the first steel arch 2 passes between the infrared emitter 311 and the infrared receiver 312, the infrared receiver 312 does not receive the rays emitted by the infrared emitter 311. The infrared receiver 312 feeds back the signal to the PLC controller 313. At this time, the PLC controller 313 controls the first electric push rod 32 and the second electric push rod 33 to start simultaneously, and controls the extension distance of the piston shaft of the first electric push rod 32 to be greater than the extension distance of the piston shaft of the second electric push rod 33. When the second steel arch 2 passes between the infrared emitter 311 and the infrared receiver 312, the infrared receiver 312 does not receive the rays emitted by the infrared emitter 311. The infrared receiver 312 feeds back the signal to the PLC controller 313. The PLC controller 313 controls the first electric push rod 32 and the second electric push rod 33 to start simultaneously, and controls the extension distance of the piston shaft of the second electric push rod 33 to be greater than the extension distance of the piston shaft of the first electric push rod 32. The above process is repeated as a work cycle, thereby realizing the cross-stacking of adjacent arc-shaped arch frames. This reduces the steps of manual cross-stacking and alignment. No machine stop is required during the entire alignment process, which improves the overall stacking efficiency, reduces labor costs, and improves operational safety. Since the arc-shaped concave surface of the steel arch frame 2 faces the transport frame 1 during transportation, its contact with the transport frame 1 is a line contact. Therefore, the setting of the two push blocks reduces the probability of the steel arch frame 2 shifting or even tipping over due to increased friction on one side caused by unilateral pushing.

[0031] refer to Figure 3 The mounting assembly 36 includes two slide rails 362, both of which are fixedly connected to the transport frame 1. A slider 363 is slidably connected to the slide rails 362. A lifting plate 361 is fixedly connected to both sliders 363. The first electric push rod 32 and the second electric push rod 33 are both fixedly connected to the lifting plate 361. Two motors 364 are also installed on the transport frame 1. The two motors 364 are controlled by the same controller. A lead screw 365 is fixedly connected to the output shaft of the motor 364. A lead screw nut is installed inside the slider 363. The lead screw 365 cooperates with the lead screw nut.

[0032] Because the bending radius and length requirements of the steel arch frame 2 vary in different working environments, when the bending radius of the steel arch frame 2 is large, the left push block 34 and the right push block 35 cannot contact the end plate of the steel arch frame 2 when they push, so limited cross-pushing cannot be achieved; the setting of the lifting plate 361 realizes the lifting of the first electric push rod 32 and the second electric push rod 33, and thus realizes the lifting of the left push block 34 and the right push block 35, making it suitable for steel arch frames 2 with various curvatures and improving the applicability of the whole device.

[0033] refer to Figure 4 and Figure 5The anti-tipping mechanism 4 includes a fixed plate 41. A third electric push rod 42 is mounted on the fixed plate 41 via an adjusting component 43. A support rod 44 is mounted on the piston shaft of the third electric push rod 42 via a rotating component 46. A support block 45 is fixedly connected to the support rod 44.

[0034] Because the concave surface of the steel arch frame 2 faces the transport frame 1 during transportation, its contact with the transport frame 1 is a line contact, resulting in limited friction. Furthermore, the end plates of the steel arch frame 2 have numerous burrs on their edges due to cutting and welding during processing. Additionally, when adjusting the steel arch frame 2, complete symmetry on the transport frame 1 cannot be guaranteed, so the left push block 34 and right push block 35 cannot simultaneously contact the end plates at both ends. Therefore, the friction at the end that contacts the end plate first increases, slowing down or stopping the forward speed of that end, which can easily lead to the steel arch frame 2 malfunctioning. The support block 45 provides support for the steel arch frame 2. When the steel arch frame 2 is being cross-adjusted, the third electric push rod 42 drives the support rod 44 and the support block 45 to follow behind the steel arch frame 2 in the forward direction. When the steel arch frame 2 tilts, the support block 45 supports it. After the cross adjustment is completed, the end plate separates from the left push block 34 and the right push block 35. At this time, the steel arch frame 2 returns to its normal transportation state under its own weight. This reduces the probability of the steel arch frame 2 tilting due to the cross adjustment, and ensures the stability of transportation.

[0035] The adjustment assembly 43 includes a rotating shaft 431, which is fixedly connected to the third electric push rod 42. Both ends of the rotating shaft 431 are rotatably connected to the fixed plate 41. A worm gear 432 is fixedly connected to the rotating shaft 431, and a worm 433 is rotatably connected to the fixed plate 41. The worm 433 meshes with the worm gear 432. Since the bending arc and length requirements of the steel arch frame 2 are different in different working environments, when the bending arc of the steel arch frame 2 is large, the support block 45 and the support point of the steel arch frame 2 are too low, thus failing to support the tilting steel arch frame 2. The setting of the rotating shaft 431 enables the rotation of the third electric push rod 42, thereby realizing the adjustment of the height of the support block 45. This allows the entire device to support and prevent the tilting of steel arch frames 2 with different bending arcs, improving the applicability of the entire device.

[0036] The rotating assembly 46 includes a connecting plate 461, which is fixedly connected to the piston shaft of the third electric push rod 42. The support rod 44 is connected to the connecting plate 461 via a limiting bolt 462 and a limiting nut 463. When the third electric push rod 42 rotates to adapt to the bending arc of the steel arch frame 2, the support angle of the support block 45 also changes. If the tilt of the support block 45 is too large, it will affect the subsequent cross adjustment. After the end plate is separated from the left push block 34 and the right push block 35, the steel arch frame 2 returns to its original state under its own weight. The setting of the limiting bolt 462 and the limiting nut 463 enables the rotation of the support block 45, so that the support angle of the support block 45 can also be adjusted after the third electric push rod 42 rotates, so as not to affect the subsequent return of the steel arch frame 2 under its own weight, further improving the applicability of the entire device.

[0037] Rotating rollers 47 are rotatably connected to the far-away end faces of the left pushing block 34 and the right pushing block 35. Due to cutting and welding during the processing, the end plates of the steel arch frame 2 have many burrs on their edges, which increases the friction between these positions and the left pushing block 34 and the right pushing block 35, increasing the risk of the steel arch frame 2 tipping over. The setting of rotating rollers 47 converts the sliding friction between the left pushing block 34 and the right pushing block 35 and the end plates into rolling friction, reducing the friction at this position and further reducing the probability of the steel arch frame 2 tipping over.

[0038] refer to Figure 6 The alignment mechanism 5 includes a slide 51, which is installed at the discharge end of the conveyor frame 1 and is inclined. A baffle 52 is fixedly connected to the end of the slide 51 away from the conveyor frame 1. A fourth electric push rod 53 is installed on both sides of the slide 51, and an alignment push block 54 is fixedly connected to the piston shaft of the fourth electric push rod 53.

[0039] After the cross-processing of the steel arch frame 2 is completed, it enters the slide 51 through the transport frame 1 and then slides to the other end of the slide 51 under its own weight. When the steel arch frame 2 accumulates to the number of packages, the two fourth electric push rods 53 are started at the same time and the steel arch frame 2 is aligned by the two alignment push blocks 54; thus realizing the aligned stacking of the cross-processed steel arch frame 2.

[0040] This application also provides a method for automatically packing and aligning stacks of steel arch frames.

[0041] A method for automatically aligning and stacking steel arch frames during packaging includes the following steps: Step 1: When the first steel arch 2 passes between the infrared transmitter 311 and the infrared receiver 312, the infrared receiver 312 does not receive the rays emitted by the infrared transmitter 311. The infrared receiver 312 feeds back the signal to the PLC controller 313. At this time, the PLC controller 313 controls the first electric push rod 32 and the second electric push rod 33 to start simultaneously, and controls the extension distance of the piston shaft of the first electric push rod 32 to be greater than the extension distance of the piston shaft of the second electric push rod 33. Step 2: When the second steel arch 2 passes between the infrared transmitter 311 and the infrared receiver 312, the infrared receiver 312 cannot receive the rays emitted by the infrared transmitter 311. The infrared receiver 312 feeds back the signal to the PLC controller 313. At this time, the PLC controller 313 controls the first electric push rod 32 and the second electric push rod 33 to start simultaneously, and controls the extension distance of the piston shaft of the second electric push rod 33 to be greater than the extension distance of the piston shaft of the first electric push rod 32. Step 3: As the steel arch frame 2 passes by, repeat steps 1 and 2. The PLC controller 313 alternately controls the piston shaft extension distance of the first electric push rod 32 and the second electric push rod 33. Step 4: When the steel arch frame 2 is being cross-processed, the third electric push rod 42 drives the support rod 44 and the support block 45 to follow behind the steel arch frame 2 in the forward direction, reducing the probability of the steel arch frame 2 tipping over. Step 5: The cross-processed steel arch frame 2 enters the slide 51 through the transport frame 1, and then slides to the other end of the slide 51 under its own weight. When the steel arch frame 2 accumulates to the required number of packages, the two fourth electric push rods 53 are started at the same time, and the steel arch frame 2 is aligned by the two alignment push blocks 54; thus realizing the aligned stacking of the cross-processed steel arch frame 2.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stacking and alignment device for automatic packaging of steel arch frames, characterized in that, It includes a cross-stacking mechanism (3), an anti-tipping mechanism (4), and an alignment mechanism (5) installed on the transport frame (1); The cross-stacking mechanism (3) includes a monitoring component (31), which is mounted on the transport frame (1). The transport frame (1) is also equipped with a first electric push rod (32) and a second electric push rod (33) via a mounting component (36). A left push block (34) is fixedly connected to the piston shaft of the first electric push rod (32), and a right push block (35) is fixedly connected to the piston shaft of the second electric push rod (33).

2. The automatic packing and alignment device for steel arch frames according to claim 1, characterized in that, The monitoring component (31) includes an infrared transmitter (311) and an infrared receiver (312). The infrared transmitter (311) and the infrared receiver (312) are respectively installed at the upper and lower ends of the transport frame (1). A PLC controller (313) is also installed on the transport frame (1). The infrared transmitter (311) and the infrared receiver (312) are both connected to the PLC controller (313). The first electric push rod (32) and the second electric push rod (33) are both connected to the PLC controller (313).

3. The automatic packing and alignment device for steel arch frames according to claim 1, characterized in that, The mounting assembly (36) includes a slide rail (362) which is fixedly connected to the transport frame (1). A slider (363) is slidably connected to the slide rail (362). A lifting plate (361) is fixedly connected to the slider (363). The first electric push rod (32) and the second electric push rod (33) are both fixedly connected to the lifting plate (361). A motor (364) is also installed on the transport frame (1). A lead screw (365) is fixedly connected to the output shaft of the motor (364). A lead screw nut is installed inside the slider (363). The lead screw (365) cooperates with the lead screw nut.

4. The automatic packing and alignment device for steel arch frames according to claim 2, characterized in that, The anti-tipping mechanism (4) includes a fixed plate (41), on which a third electric push rod (42) is installed via an adjustment component (43), and a support rod (44) is installed on the piston shaft of the third electric push rod (42) via a rotating component (46), and a support block (45) is fixedly connected to the support rod (44).

5. The automatic packing and alignment device for steel arch frames according to claim 4, characterized in that, The adjustment assembly (43) includes a rotating shaft (431), which is fixedly connected to the third electric push rod (42). Both ends of the rotating shaft (431) are rotatably connected to the fixed plate (41). A worm gear (432) is fixedly connected to the rotating shaft (431), and a worm (433) is rotatably connected to the fixed plate (41). The worm (433) meshes with the worm gear (432).

6. The automatic packing and alignment device for steel arch frames according to claim 4, characterized in that, The rotating assembly (46) includes a connecting plate (461), which is fixedly connected to the piston shaft of the third electric push rod (42). The support rod (44) is connected to the connecting plate (461) by a limiting bolt (462) and a limiting nut (463).

7. The automatic packing and alignment device for steel arch frames according to claim 1, characterized in that, Rotating rollers (47) are rotatably connected to the end faces of the left push block (34) and the right push block (35) that are far apart from each other.

8. The automatic packing and alignment device for steel arch frames according to claim 4, characterized in that, The alignment mechanism (5) includes a slide (51), which is installed at the discharge end of the conveyor frame (1) and is inclined. A baffle (52) is fixedly connected to one end of the slide (51) away from the conveyor frame (1). A fourth electric push rod (53) is installed on both sides of the slide (51), and an alignment push block (54) is fixedly connected to the piston shaft of the fourth electric push rod (53).

9. A method for automatically aligning stacks of steel arch frames during packaging, characterized in that, The process of packing and stacking steel arch frames using the automatic packing and alignment device of claim 8 includes the following steps: Step 1: When the first steel arch frame (2) passes between the infrared transmitter (311) and the infrared receiver (312), the infrared receiver (312) cannot receive the rays emitted by the infrared transmitter (311). The infrared receiver (312) feeds back the signal to the PLC controller (313). At this time, the PLC controller (313) controls the first electric push rod (32) and the second electric push rod (33) to start simultaneously, and controls the extension distance of the piston shaft of the first electric push rod (32) to be greater than the extension distance of the piston shaft of the second electric push rod (33). Step 2: When the second steel arch frame (2) passes between the infrared transmitter (311) and the infrared receiver (312), the infrared receiver (312) cannot receive the rays emitted by the infrared transmitter (311). The infrared receiver (312) feeds back the signal to the PLC controller (313). At this time, the PLC controller (313) controls the first electric push rod (32) and the second electric push rod (33) to start simultaneously, and controls the extension distance of the piston shaft of the second electric push rod (33) to be greater than the extension distance of the piston shaft of the first electric push rod (32). Step 3: As the steel arch frame (2) passes by, repeat steps 1 and 2. The PLC controller (313) alternately controls the piston shaft extension distance of the first electric push rod (32) and the second electric push rod (33) to change. Step 4: When the steel arch frame (2) is being cross-processed, the third electric push rod (42) drives the support rod (44) and the support block (45) to follow behind the steel arch frame (2) in the forward direction, reducing the probability of the steel arch frame (2) tipping over. Step 5: The cross-processed steel arch frame (2) enters the slide (51) through the transport frame (1), and then slides to the other end of the slide (51) under its own weight. When the steel arch frame (2) accumulates to the number of packages, the two fourth electric push rods (53) are started at the same time, and the steel arch frame (2) is aligned by the two alignment push blocks (54); thus realizing the alignment and stacking of the cross-processed steel arch frame (2).

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