Automatic conveying device for sheet metal
By designing an automatic conveying device, the problems of thin plate deformation and inaccurate positioning caused by uneven mechanical clamping force were solved, and high-precision round tube forming was achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ANHUI DEHENG IND INTELLIGENT TECHNOLOGY CO LTD
- Filing Date
- 2025-08-11
- Publication Date
- 2026-06-09
Smart Images

Figure CN224336528U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of circular tube forming machine technology, specifically an automatic conveying device for thin plates. Background Technology
[0002] Some round tubes require the use of round tube forming machines during manufacturing to achieve specific shapes, dimensional accuracy, and economical mass production, especially in building decoration, industrial piping, and precision components. Thin sheet materials such as stainless steel and aluminum plates are characterized by large area and thin thickness (typically 0.5-3mm). Existing round tube forming machines mostly use two feeding methods: one is feeding by mechanical clamping force, and the other is feeding by conveyor rollers. The former requires a large force to clamp the thin sheet, which can easily lead to deformation or surface scratches due to uneven clamping force, affecting the quality of the round tube after bending. The latter is difficult to accurately position the front end of the thin sheet, making it easy for the round tube forming machine to have processing deviations during processing, resulting in round tubes with lower accuracy after forming. Utility Model Content
[0003] The purpose of this utility model is to address the above-mentioned shortcomings by providing an automatic conveying device for thin plates. This device can not only avoid deformation or surface scratches of thin plates due to uneven mechanical clamping force, thus ensuring the quality of the round tube after bending, but also position the front end of the thin plate after feeding. Furthermore, it can prevent the round tube forming machine from easily causing processing deviations during processing, thereby improving the accuracy of the round tube after bending.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An automatic conveying device for thin plates includes a conveying frame, a roller conveyor and a positioning track disposed on the conveying frame, wherein the discharge end of the roller conveyor is connected to the inlet end of the positioning track, the positioning track consists of multiple conveying supports arranged in a matrix, multiple universal ball bearings arranged in a matrix on the conveying supports, and a clamping and positioning component disposed through the positioning track. The clamping and positioning component is used to clamp the thin plate at the end of the roller conveyor and move it on the positioning track. During the movement of the thin plate on the positioning track, the multiple universal ball bearings roll and connect the thin plate.
[0006] Furthermore, the clamping and positioning assembly includes a linear motor horizontally fixed on the conveying bracket, the linear motor passing through the positioning channel, a positioning frame fixed at the movable end of the linear motor, a clamping plate assembly and a push plate positioning assembly mounted on the positioning frame.
[0007] Furthermore, the clamping plate assembly includes two clamping plate cylinders symmetrically fixed to the tail end of the positioning frame, two lower clamping blocks fixed to the front end of the positioning frame, two clamping plate frames fixed to the middle of the positioning frame, and a feeding connecting rod rotatably connected to the top of the clamping plate frames in the middle. The front end of the feeding connecting rod is fixed with an upper clamping block. The piston rod head of the clamping plate cylinder extends vertically upward and is driven to connect to a driving seat. The rear end of the feeding connecting rod is rotatably connected to the driving seat. When the piston rod head of the clamping plate cylinder is in the extended state, the front end of the feeding connecting rod moves downward, and the upper clamping block abuts against the lower clamping block. The top of the universal ball is flush with the upper surface of the lower clamping block.
[0008] Furthermore, the push plate positioning assembly includes a positioning mounting plate fixed on the positioning frame, two push plate cylinders symmetrically fixed on the positioning mounting plate, the piston rod head of the push plate cylinder extending horizontally towards the front end of the positioning frame and drivingly connected to the positioning push plate, and a feeding slide rod slidably connected on the positioning mounting plate, the feeding slide rod being parallel to the push plate cylinder, and the front end of the feeding slide rod being fixed on the positioning push plate.
[0009] Furthermore, multiple L-shaped positioning plates are installed on the conveyor frame at the front end of the roller conveyor, and the vertical portion of the L-shaped positioning plates extends above the roller conveyor.
[0010] Furthermore, a distance sensing sensor is installed on the conveyor frame at the front end of the roller conveyor.
[0011] The beneficial effects of this utility model are:
[0012] In practical applications, thin plates are transferred to positioning tracks via roller conveyors. A clamping and positioning assembly holds the thin plate at the end of the roller conveyor and drags it along the positioning track, moving the front end of the thin plate to a designated position. During this transfer, multiple universal ball bearings connect the thin plate, eliminating the need for excessive mechanical clamping force from the clamping and positioning assembly, thus preventing deformation or surface scratches. This invention not only avoids deformation or surface scratches caused by uneven mechanical clamping force, ensuring the quality of the bent tube, but also positions the front end of the loaded thin plate and prevents misalignment during processing, improving the accuracy of the bent tube. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a top view of the present invention;
[0015] Figure 3 This is the front view of this utility model;
[0016] Figure 4This is a schematic diagram of the clamping and positioning component in this utility model;
[0017] Reference numerals: 11. Conveyor frame; 12. Roller conveyor; 13. Clamping and positioning assembly; 131. Linear motor; 132. Positioning frame; 1331. Clamping cylinder; 1332. Lower clamping block; 1333. Clamping frame; 1334. Feeding connecting rod; 1335. Upper clamping block; 1336. Drive seat; 1341. Positioning mounting plate; 1342. Push plate cylinder; 1343. Positioning push plate; 1344. Feeding slide bar; 14. Conveying bracket; 15. Universal ball bearing; 16. L-shaped positioning plate; 17. Distance sensor. Detailed Implementation
[0018] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, an automatic conveying device for thin plates includes a conveyor frame 11, a roller conveyor 12 and a positioning track disposed on the conveyor frame 11. The discharge end of the roller conveyor 12 is connected to the feed end of the positioning track. The positioning track consists of multiple conveyor supports 14 arranged in a matrix, multiple universal ball bearings 15 arranged in a matrix on the conveyor supports 14, and a clamping and positioning component 13 disposed through the positioning track. The clamping and positioning component 13 is used to clamp the thin plate at the end of the roller conveyor 12 and move it on the positioning track. During the movement of the thin plate on the positioning track, the multiple universal ball bearings 15 roll and connect the thin plate.
[0019] The thin plate is transferred to the positioning track via roller conveyor 12. The thin plate at the end of roller conveyor 12 is clamped by clamping and positioning component 13, and the thin plate is dragged on the positioning track to move the front end of the thin plate to the designated position. During the transfer, the thin plate is connected by multiple universal ball bearings 15, so that clamping and positioning component 13 does not need to consume a large mechanical clamping force, thus avoiding deformation or surface scratches of the thin plate. This utility model can not only avoid deformation or surface scratches of the thin plate due to uneven mechanical clamping force, ensuring the quality of the round tube after bending, but also position the front end of the thin plate after feeding, and avoid the processing deviation that is easy to occur during the processing of the round tube forming machine, thus improving the accuracy of the round tube after bending.
[0020] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the clamping and positioning assembly 13 includes a linear motor 131 horizontally fixed on the conveying bracket 14. The linear motor 131 passes through the positioning channel, and a positioning frame 132 is fixed to the movable end of the linear motor 131. A clamping plate assembly and a push plate positioning assembly are installed on the positioning frame 132. In this embodiment, the push plate positioning assembly performs initial positioning on the front end of the thin plate fed by the roller conveyor 12. The clamping plate assembly clamps the thin plate after initial positioning. The linear motor 131 drives the positioning frame 132 to move the thin plate. During the movement, multiple universal ball bearings 15 roll and connect the thin plate, so that the clamping plate assembly does not need to consume a large mechanical clamping force, avoiding deformation or surface scratches of the thin plate. After the linear motor 131 drives the positioning frame 132 to move the thin plate to the designated position, the clamping plate assembly releases the thin plate, and the push plate positioning assembly pushes out the released thin plate.
[0021] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the clamping plate assembly includes two clamping plate cylinders 1331 symmetrically fixed to the tail end of the positioning frame 132, two lower clamping blocks 1332 fixed to the front end of the positioning frame 132, two clamping plate frames 1333 fixed to the middle of the positioning frame 132, and a feeding connecting rod 1334 rotatably connected to the top of the clamping plate frame 1333. An upper clamping block 1335 is fixed to the front end of the feeding connecting rod 1334. The piston rod head of the clamping plate cylinder 1331 extends vertically upward and is driven to connect to a drive seat 1336. The rear end of the feeding connecting rod 1334 is rotatably connected to... When the piston rod of the clamping cylinder 1331 is extended, the front end of the loading connecting rod 1334 moves downward, the upper clamping block 1335 abuts against the lower clamping block 1332, and the top of the universal ball bearing 15 is flush with the upper surface of the lower clamping block 1332. In this embodiment, by extending the piston rod of the clamping cylinder 1331, the front end of the loading connecting rod 1334 moves downward, clamping the thin plate between the upper clamping block 1335 and the lower clamping block 1332. By retracting the piston rod of the clamping cylinder 1331, the front end of the loading connecting rod 1334 moves upward, releasing the thin plate.
[0022] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the pusher positioning assembly includes a positioning mounting plate 1341 fixed on the positioning frame 132, and two pusher cylinders 1342 symmetrically fixed on the positioning mounting plate 1341. The piston rod head of the pusher cylinder 1342 extends horizontally towards the front end of the positioning frame 132 and is driven to connect to the positioning pusher plate 1343. A feeding slide rod 1344 is slidably connected to the positioning mounting plate 1341. The feeding slide rod 1344 is parallel to the pusher cylinder 1342, and its front end is fixed to the positioning pusher plate 1343. In this embodiment, before the pusher positioning assembly is used, the piston rod head of the pusher cylinder 1342 is in a retracted state, and the piston rod head of the clamping plate cylinder 1331 is also in a retracted state. In the current state, when the front end of the thin plate fed by the roller conveyor 12 abuts against the positioning push plate 1343, the piston rod head of the clamping cylinder 1331 extends, causing the front end of the feeding connecting rod 1334 to move downward, clamping the thin plate between the upper clamping block 1335 and the lower clamping block 1332. The linear motor 131 drives the positioning frame 132 to move the thin plate. During the movement, the thin plate is connected by multiple universal ball bearings 15. After the linear motor 131 finishes moving the plate, the piston rod head of the clamping cylinder 1331 retracts, causing the front end of the feeding connecting rod 1334 to move upward, releasing the thin plate. The piston rod head of the push plate cylinder 1342 extends, driving the positioning push plate 1343 to push the thin plate backward, pushing the thin plate out of the lower clamping block 1332, thus completing the positioning of the front end of the thin plate.
[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, multiple L-shaped positioning plates 16 are installed on the conveyor frame 11 at the front end of the roller conveyor 12, and the vertical part of the L-shaped positioning plate 16 extends to the top of the roller conveyor 12; in this embodiment, the vertical part of the L-shaped positioning plate 16 can be used to position the rear end of the thin plate before it is conveyed by the roller conveyor 12.
[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a distance sensing sensor 17 is installed on the conveyor frame 11 at the front end of the roller conveyor 12. In this embodiment, when the rear end of the thin plate abuts against the vertical part of the L-shaped positioning plate 16 and the thin plate is placed on the roller conveyor 12, the detection end of the distance sensing sensor 17 is set directly opposite the rear end of the thin plate. When the distance sensing sensor 17 detects the thin plate, the roller conveyor 12 automatically starts feeding.
[0025] It also includes a PLC controller. The distance sensing sensor 17, the gripping and positioning component 13 and the roller conveyor 12 are all electrically connected to the controller. The distance sensing sensor 17, the gripping and positioning component 13 and the roller conveyor 12 can be controlled by the PLC controller.
[0026] The specific embodiments described herein are merely illustrative examples of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to replace them, without departing from the scope defined by this utility model.
Claims
1. An automatic conveying device for thin plates, characterized in that: Includes a conveyor frame (11), a roller conveyor (12) and a positioning channel set on the conveyor frame (11), the discharge end of the roller conveyor (12) is connected to the feed end of the positioning channel, the positioning channel is a plurality of conveyor supports (14) arranged in a matrix, a plurality of universal balls (15) arranged in a matrix on the conveyor supports (14), and a clamping and positioning component (13) set through the positioning channel. The clamping and positioning component (13) is used to clamp the thin plate at the end of the roller conveyor (12) and move it on the positioning channel. During the movement of the thin plate on the positioning channel, the plurality of universal balls (15) roll and connect the thin plate.
2. The automatic conveying device for thin plates according to claim 1, characterized in that, The clamping and positioning assembly (13) includes a linear motor (131) horizontally fixed on the conveying bracket (14), the linear motor (131) passing through the positioning channel, a positioning frame (132) fixed at the movable end of the linear motor (131), a clamping plate assembly and a push plate positioning assembly mounted on the positioning frame (132).
3. An automatic conveying device for thin plates according to claim 2, characterized in that, The clamping plate assembly includes two clamping plate cylinders (1331) symmetrically fixed to the tail end of the positioning frame (132), two lower clamping blocks (1332) fixed to the front end of the positioning frame (132), two clamping plate frames (1333) fixed to the middle of the positioning frame (132), and a feeding connecting rod (1334) rotatably connected to the top of the clamping plate frame (1333) in the middle. An upper clamping block (1335) is fixed to the front end of the feeding connecting rod (1334). The piston rod head of the cylinder (1331) extends vertically upward and is connected to the drive seat (1336). The rear end of the feeding connecting rod (1334) is rotatably connected to the drive seat (1336). When the piston rod head of the clamping cylinder (1331) is in the extended state, the front end of the feeding connecting rod (1334) moves downward and the upper clamping block (1335) abuts against the lower clamping block (1332). The top of the universal ball (15) is flush with the upper surface of the lower clamping block (1332).
4. An automatic conveying device for thin plates according to claim 3, characterized in that, The push plate positioning assembly includes a positioning mounting plate (1341) fixed on the positioning frame (132), two push plate cylinders (1342) symmetrically fixed on the positioning mounting plate (1341), the piston rod head of the push plate cylinder (1342) extends horizontally to the front end of the positioning frame (132) and is driven to connect to the positioning push plate (1343), a feeding slide rod (1344) is slidably connected on the positioning mounting plate (1341), the feeding slide rod (1344) is parallel to the push plate cylinder (1342), and the front end of the feeding slide rod (1344) is fixed on the positioning push plate (1343).
5. An automatic conveying device for thin plates according to claim 1, characterized in that, Multiple L-shaped positioning plates (16) are installed on the conveyor frame (11) at the front end of the roller conveyor (12), and the vertical part of the L-shaped positioning plate (16) extends to the top of the roller conveyor (12).
6. An automatic conveying device for thin plates according to claim 1, characterized in that, A distance sensing sensor (17) is installed on the conveyor frame (11) at the front end of the roller conveyor (12).