A stepped turnover guide roller device for a material stacking mechanism

Abstract

The utility model relates to the field of board stacking equipment discloses a step type turnover guide roller device for stacking mechanism. The device sets up turnover rotary seat on the connecting seat of both sides of the frame, and the rotary seat is switched between the retracted position and the working position around the hinge shaft driven by the cylinder, the roller wheel is rotatably installed on the rotary seat, the outer circle of the roller wheel has the step structure extending along the circumference at the end close to the stacking center, the shoulder part surface is perpendicular to the roller wheel axis, and serves as the lateral positioning surface of the board edge part. In the working position, the step shoulder part surface and the side baffle jointly form the rolling guide and lateral limiting channel of the narrow plate, can realize stable distribution and accurate stacking under the width scene close to or lower than the conventional lower limit of adjustment, reduces the deviation and knock, and improves the production efficiency. The device is compact in structure, reliable in action, and convenient to integrate into the existing stacking mechanism to implement upgrading.

Description

Technical Field

[0001] This utility model relates to sheet metal stacking equipment in the non-ferrous metal processing industry, and more particularly to a stepped flipping guide roller device for a stacking mechanism. Background Technology

[0002] In existing stacking equipment, the common practice is to use side baffles in conjunction with a width adjustment mechanism to adapt to different sheet widths, or to set fixed guide wheels on the side to guide the edges of the sheet by rolling. While these solutions meet basic requirements for handling standard-width sheets, they typically encounter the following problems when separating narrow sheets with widths less than the equipment's standard adjustment limit: First, the width adjustment range is limited, making it difficult for the side baffles to get closer, resulting in insufficient lateral positioning of the narrow sheet and a tendency for it to deviate or overlap. Second, the fixed guide wheels are a continuously engaged structure, which can easily interfere with standard-width sheets or increase friction and wear, hindering rapid switching between different sheet types. Third, if the contact geometry between the guide wheels and the sheet edge lacks a clear lateral reference plane, the lateral restraint force is unstable during the rolling guidance process, making it difficult to balance guidance and limiting, thus affecting the neatness and efficiency of the stacking.

[0003] Therefore, how to avoid interference from guide components in the production of standard width plates, while providing reliable lateral positioning and rolling guidance when handling narrow plates, and taking into account assembly rigidity, ease of maintenance and adaptability to multiple specifications, has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0004] The present invention aims to provide a stepped flipping guide roller device for a stacking mechanism that is simple in structure and highly applicable without changing the main structure of the stacking mechanism. This device enables stable placement and accurate stacking even when the width of the sheet material is close to or less than the lower limit of the original equipment width, thereby reducing the risk of edge collisions and improving production efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A stepped flipping guide roller device for a stacking mechanism includes a pair of connecting seats arranged on both sides of a frame and slidably connected to the frame; a screw transmission mechanism driven by the connecting seats to drive the connecting seats to move laterally in opposite directions; and a side baffle fixedly installed on the connecting seats and moving synchronously with them. It also includes a cylinder and a rotating seat. The connecting seats are provided with a mounting part, and the rotating seat is rotatably connected to the mounting part via a flipping pin. The cylinder body is hinged to the connecting seats, and the piston rod end of the cylinder is hinged to the rotating seat to drive the rotating seat to flip around the flipping pin between a retracted position and a working position. A roller is rotatably mounted on the rotating seat via a bearing assembly. The outer circumferential surface of the roller has a stepped structure extending circumferentially. The shoulder surface of the stepped structure is perpendicular to the axis of the roller and forms a lateral positioning surface for the edge of the sheet material.

[0007] Optionally, the bearing assembly includes a rolling bearing disposed within the roller and a roller shaft passing through the inner ring of the rolling bearing. The outer ring of the rolling bearing is fixedly connected to the roller, the inner ring of the rolling bearing is fixedly connected to the roller shaft, and the roller shaft is fixedly connected to the rotating seat, so that the roller can rotate freely relative to the rotating seat.

[0008] Optionally, the stepped structure is located at one end of the roller near the center of the stacking mechanism.

[0009] Optionally, the lead screw transmission mechanism includes a lead screw that is driven to rotate by a drive device, and the connecting seat and the lead screw form a lead screw nut pair.

[0010] Optionally, the mounting part is a mounting plate that is vertically fixed to the connecting seat.

[0011] Compared with existing technologies, this invention uses a cylinder to drive a rotating seat to rotate around a flipping pin, enabling the roller to flexibly switch between a retracted position and a working position tilted towards the center of the stacking mechanism. This greatly expands the adaptability range of the device to sheet widths and effectively solves the technical problem of existing stacking mechanisms being unable to achieve effective guidance and positioning when distributing sheets smaller than the lower limit width of the equipment. The stepped structure on the outer surface of the roller, with its shoulder surface perpendicular to the roller axis and forming a cooperative constraint with the side baffle in the working position, provides a rigid reference and precise lateral positioning for the edge of the sheet, significantly reducing the impact of sheet material displacement during distribution. This device addresses issues such as misalignment, collisions, and uneven turning during the feeding process, ensuring product quality and reducing scrap rates. Simultaneously, the rollers rotate freely relative to the rotating seat via bearing assemblies, effectively reducing frictional resistance and surface wear during sheet material conveying, extending the device's lifespan, and reducing maintenance frequency. The overall device boasts a compact structure and automated operation, significantly reducing operator workload and improving production efficiency and operational safety. Furthermore, its highly versatile design allows for easy integration into existing wide and thick shearing and stacking mechanisms, enabling low-cost production line upgrades and process optimization, demonstrating significant industrial application value and promising prospects for widespread adoption. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall assembly structure of this utility model;

[0013] Figure 2 for Figure 1 A magnified structural diagram of point A in the middle.

[0014] Figure 1 , 2 In the middle: 1. Frame, 2. Connecting seat, 3. Side baffle, 4. Cylinder, 5. Rotating seat, 6. Tilting pin, 7. Mounting part, 8. Roller, 9. Roller bearing, 10. Roller shaft, 11. Lead screw. Detailed Implementation

[0015] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0016] like Figure 1 and Figure 2 As shown, the stepped flipping guide roller device for the stacking mechanism of this utility model is symmetrically arranged on both sides of the frame 1. A detailed description is given using one side as an example; the other side has the same structure and synchronized operation. For ease of description, identical components on both sides are represented by the same reference numerals, and the following description uses one side as an example, which does not constitute a limitation on the symmetrical arrangement.

[0017] The device mainly includes a width adjustment mechanism and a flipping guide unit. The width adjustment mechanism is used to drive the connecting seat 2 to move laterally towards or away from each other; the flipping guide unit is used to switch the guide function between the retracted position and the working position.

[0018] The width adjustment mechanism includes a connecting seat 2 that forms a screw-nut pair with the lead screw 11, and a side baffle 3 that is fixedly installed on the connecting seat 2 and moves synchronously with it. The connecting seat 2 is slidably connected to the frame 1 via a slide rail or slide groove. When the drive device drives the lead screw 11 to rotate, the connecting seat 2 moves laterally towards or away from each other, thereby driving the side baffle 3 to synchronously adjust the distance between the two sides to accommodate plates of different widths.

[0019] In a practical model, the lead screw drive mechanism uses multiple lead screws arranged in parallel to improve the synchronization of width adjustment and load-bearing capacity; for example, the number of lead screws can be four. The number is not mandatory and can be increased or decreased as needed according to the equipment width range, the length of the connecting seat, and the load distribution. Alternatively, a single lead screw can be used in conjunction with a synchronous connecting rod or rack and pinion to achieve equivalent drive.

[0020] The flipping guide unit is mounted on the connecting seat 2, and its core components include a mounting part 7, a rotating seat 5, a cylinder 4, a roller 8, and a bearing assembly. In this embodiment, the mounting part 7 is specifically a mounting plate vertically fixed to the connecting seat 2. The rotating seat 5 is rotatably connected to the mounting plate via a flipping pin 6, allowing the rotating seat 5 to flip around the axis of the flipping pin 6.

[0021] The flipping guide units can be arranged in groups along the stacking direction or the length of the frame to form a continuous lateral guide belt. In an actual model, the total number of rollers 8 on both sides can be 26 to adapt to the target sheet material specifications and the length of the stacking area. The above numbers are for illustrative purposes only and do not constitute a limitation on this utility model; in different equipment models, the number, spacing, and arrangement of rollers 8 and flipping guide units can be reasonably configured as needed. For ease of understanding, the attached drawings only show the structural relationship of one group of flipping guide units, and not all units are drawn; similar components and arrangements not shown are the same as or similar to those shown.

[0022] Cylinder 4 serves as the driving element, with its cylinder body hinged to connecting seat 2 and its piston rod end hinged to rotating seat 5. By controlling the extension and retraction of the piston rod of cylinder 4, the rotating seat 5 is driven to rotate around the flipping pin 6 between the retracted position and the working position.

[0023] A roller 8 is rotatably mounted on the rotating base 5 via a bearing assembly. Specifically, a roller shaft 10 is fixedly mounted on the rotating base 5. A rolling bearing 9 is disposed in the inner hole of the roller 8, with its outer ring fixedly connected to the inner wall of the roller 8 and its inner ring fixedly connected to the roller shaft 10. The roller shaft 10 is fixedly connected to the rotating base 5, allowing the roller 8 to rotate freely relative to the rotating base 5. This typical rolling bearing assembly structure ensures that the roller 8 can rotate freely and with low resistance around the fixed roller shaft 10.

[0024] The outer circumferential surface of the roller 8 is provided with a stepped structure extending circumferentially at one end near the center of the stacking mechanism, which is preferably an annular step. The shoulder surface of this stepped structure is perpendicular to the axis of the roller 8 and serves as a lateral positioning surface for the edge of the sheet material, used to achieve non-contact or light-contact rolling guidance and limiting in the working state.

[0025] The working process of this utility model is as follows: When producing sheet metal within the normal width range, the control cylinder 4 keeps its piston rod in the retracted state. At this time, the rotating seat 5, under its own weight or the action of an optional limiting mechanism, remains in the retracted position. In this position, the roller 8 and its stepped structure are located outside the conventional sheet metal conveying path, without causing any interference, and the device works like a traditional side baffle 3.

[0026] When it is necessary to separate narrow plates with a width less than the lower limit of the equipment's normal adjustment, the following steps are performed: When it is necessary to guide the edge of the narrow plate, the width is adjusted first, and then the flipping guide unit is engaged. First, drive the lead screw 11 to rotate, so that the connecting seats 2 on both sides and the side baffles 3 move towards each other to the minimum distance. Next, control the cylinder 4 to extend its piston rod, which pushes the rotating seat 5, driving it to flip and tilt around the flipping pin 6 towards the center of the stacking mechanism until it reaches the preset working position. In the working position, the roller 8, together with the rotating seat 5, extends into the area that cannot be covered by the normal adjustment. Its stepped shoulder surface forms an effective lateral guard, which, together with the symmetrical structure on the other side, constitutes a positioning channel for the edge of the ultra-narrow plate. When the ultra-narrow plate enters the stacking area along the conveyor line, its edge contacts the stepped surface or cylindrical surface of the roller 8, and the roller 8 is driven by friction to rotate freely, smoothly guiding the plate. Meanwhile, the shoulder surface of the step provides precise lateral restraint for the sheet material, effectively preventing it from deviating, overlapping, or flipping, ensuring that it falls smoothly and neatly into the stacking platform, thus completing the sorting and stacking of ultra-narrow sheets with high quality. After the operation is completed or when switching back to the production of regular width sheets, simply reset cylinder 4, and roller 8 will automatically return to the retracted position.

[0027] Where there is no contradiction, the above-described technical features can be combined with each other. The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model in any way. Any modifications, equivalent substitutions, improvements, or variations made by those skilled in the art to the above embodiments within the spirit and concept of this utility model should fall within the protection scope of this utility model.

Claims

1. A stepped flipping guide roller device for a stacking mechanism, comprising a pair of connecting seats (2) disposed on both sides of a frame (1) and slidably connected to the frame (1), a screw transmission mechanism driven by the connecting seats (2) to drive the connecting seats (2) to move laterally towards or away from each other, and a side baffle (3) fixedly installed on the connecting seats (2) and moving synchronously therewith, characterized in that, It also includes a cylinder (4) and a rotating seat (5). The connecting seat (2) is provided with a mounting part (7). The rotating seat (5) is rotatably connected to the mounting part (7) through a flip pin (6). The cylinder body of the cylinder (4) is hinged to the connecting seat (2), and the piston rod end of the cylinder (4) is hinged to the rotating seat (5) to drive the rotating seat (5) to flip around the flip pin (6) between the retracted position and the working position. A roller (8) is rotatably mounted on the rotating seat (5) through a bearing assembly. The outer circumferential surface of the roller (8) is provided with a step structure extending in the circumferential direction. The shoulder surface of the step structure is perpendicular to the axis of the roller (8) and forms a lateral positioning surface for the edge of the plate.

2. The apparatus of claim 1, wherein, The bearing assembly includes a rolling bearing (9) disposed in the roller (8) and a roller shaft (10) passing through the inner ring of the rolling bearing (9). The outer ring of the rolling bearing (9) is fixedly connected to the roller (8), the inner ring of the rolling bearing (9) is fixedly connected to the roller shaft (10), and the roller shaft (10) is fixedly connected to the rotating seat (5) so that the roller (8) can rotate freely relative to the rotating seat (5).

3. The apparatus of claim 1, wherein, The stepped structure is located at one end of the roller (8) near the center of the stacking mechanism.

4. The apparatus of claim 1, wherein, The lead screw transmission mechanism includes a lead screw (11) driven to rotate by a drive device, and the connecting seat (2) and the lead screw (11) form a lead screw nut pair.

5. The apparatus of claim 1, wherein, The mounting part (7) is a mounting plate that is vertically fixed on the connecting seat (2).

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