Panel conveying device

Abstract

This utility model relates to the technical field of sheet metal processing equipment, specifically to a sheet metal conveying device integrating conveying, lifting, and rotational positioning functions; a sheet metal conveying device includes a frame forming a basic support structure; a conveying assembly arranged on top of the frame for linear conveying of sheet metal, comprising a support frame fixed on the frame, multiple conveying belts arranged parallel to the upper part of the support frame, pulleys supporting both ends of the belts, a shaft passing through the coaxial pulleys, a first motor driving the shaft to rotate, and a chain drive mechanism connecting the output shaft of the first motor and the shaft; a lifting assembly vertically and vertically mounted on the outside of the frame for lifting sheet metal detached from the conveying assembly, comprising an annular frame and a first drive cylinder for driving the frame to lift; and a positioning assembly for driving the lifted sheet metal to rotate circumferentially, comprising a support frame placed on top of the frame, a support roller supporting the support frame, a pressure roller pressing against the inner wall of the support frame, and a second motor driving the pressure roller to rotate.

Description

Technical Field

[0001] This utility model relates to the technical field of sheet metal processing equipment, specifically to a sheet metal conveying device that integrates conveying, lifting and rotating functions, suitable for automated positioning operations before sheet metal trimming, laminating and other processing steps. Background Technology

[0002] In the field of sheet metal processing, efficiently conveying and oriented the sheets is crucial for improving production line continuity. Existing technologies typically employ separate equipment to achieve conveying, lifting, and rotating functions, which has the following drawbacks:

[0003] 1. Functional separation leads to low efficiency: Existing conveyors can only achieve linear conveying and need to be used with independent lifting mechanisms and rotary tables to complete the reversal. Transfer between equipment leads to a longer cycle time (about 30% time loss), and multiple positioning causes cumulative errors.

[0004] 2. Insufficient reversal accuracy: Traditional rotating mechanisms use cylinders to directly drive the plate to rotate, lacking an angle feedback mechanism. The reversal angle deviation often reaches ±3° or more, leading to an increased scrap rate in subsequent trimming processes.

[0005] 3. Low space utilization: The split layout requires reserved space between equipment (usually ≥1.5 meters), and the lifting mechanism has too large a stroke, resulting in a waste of longitudinal space in the production line, making it difficult to adapt to compact workshops.

[0006] To address the aforementioned issues, there is an urgent need to develop an integrated, high-precision plate conveying and reversing device. Utility Model Content

[0007] In order to overcome the problems of low efficiency, insufficient reversing accuracy and low equipment space utilization caused by the separation of conveying, lifting and transposition functions in the existing technology, this utility model provides a plate conveying device, which integrates conveying components, lifting components and transposition components to shorten cycle time, reduce reversing deviation and reduce longitudinal space occupation.

[0008] The technical solution adopted by this utility model to solve its technical problem is as follows: a sheet material conveying device, including a frame forming a basic support structure; a conveying component arranged on the top of the frame for linear conveying of sheet material, including a support frame fixed on the frame, multiple conveying belts arranged parallel to the upper part of the support frame, pulleys supporting both ends of the belts, a shaft passing through the coaxial pulleys, a first motor driving the shaft to rotate, and a chain transmission mechanism connecting the output shaft of the first motor and the shaft; a lifting component, which can be vertically lifted and lowered outside the frame for lifting sheet material detached from the conveying component, including an annular frame and a first drive cylinder for lifting the frame; and a shifting component for driving the lifted sheet material to rotate circumferentially, including a support frame placed on the top of the frame, a support roller supporting the support frame, a pressure roller pressing against the inner wall of the support frame, a second motor driving the pressure roller to rotate, and a second drive cylinder controlling the pressure roller to abut against the support frame.

[0009] The aforementioned sheet metal conveying device further includes a support plate located below the support frame, wherein the support plate is bolted to the support frame and the machine frame.

[0010] The aforementioned sheet metal conveying device includes a chain drive mechanism comprising a sprocket keyed to the output shaft and shaft of a first motor and a chain meshing with the two sprockets.

[0011] The aforementioned sheet material conveying device, wherein the lifting assembly further includes a slide rail vertically mounted on the side wall of the frame and a slider that slides with the slide rail and is fixedly connected to the frame.

[0012] The aforementioned sheet metal conveying device further includes a buffer located at the upper and lower limit positions of the frame, wherein the lifting assembly is also provided.

[0013] The aforementioned plate conveying device includes a top wheel that abuts against the lower wall of the support frame and a side wheel that abuts against the side wall of the support frame. The support wheel is connected to the frame via a rod with bearings.

[0014] In the aforementioned plate conveying device, the second drive cylinder is hinged to a frame and a wheel frame at both ends, and the top of the wheel frame is connected to a pressure roller via a bearing.

[0015] The aforementioned sheet material conveying device, the transposition component further includes a proximity displacement sensor for detecting the rotation angle of the support frame.

[0016] In the aforementioned sheet material conveying device, a corner box is provided between the second motor and the pressure roller. The corner box is connected to the output shaft of the second motor and the pressure roller respectively via a universal joint.

[0017] The beneficial effects of this utility model are:

[0018] 1. Efficiency Improvement: The conveyor belt of the conveyor component is linked with the first motor to complete linear conveying, the frame of the lifting component is driven by the first drive cylinder to lift the plate, and the pressure roller of the transposition component rotates the support frame under the drive of the second motor. The three functions are seamlessly connected, eliminating the transfer link between equipment and shortening the cycle time.

[0019] 2. Precision optimization: The lifting component uses slide rails and sliders to constrain the vertical lifting and lowering of the frame to avoid skewing; the pressure roller of the repositioning component contacts the inner wall of the support frame for transmission, and combined with the real-time angle feedback from the displacement sensor, the reversing angle deviation is reduced.

[0020] 3. Space compression: The ring frame is installed outside the machine frame, and the lifting and repositioning share the vertical space, which reduces the longitudinal length of the equipment compared with the split layout. Attached Figure Description

[0021] The present invention will be further described below with reference to the embodiments and examples.

[0022] Figure 1 This is a three-dimensional structural diagram of an embodiment.

[0023] Figure 2 This is a side view of the structure of an embodiment.

[0024] Figure 3 This is a front view structural diagram of an embodiment.

[0025] Figure 4 This is a three-dimensional structural diagram of the conveying component.

[0026] Figure 5 This is a three-dimensional structural diagram of the lifting assembly.

[0027] Figure 6 This is a schematic diagram of the three-dimensional structure of the transposition component.

[0028] Figure 7 This is a structural schematic diagram of the pressure roller, wheel frame, and second drive cylinder.

[0029] Figure 8 This is a schematic diagram showing the long-side conveying status of the sheet material.

[0030] Figure 9 This is a schematic diagram showing the short-side conveying status of the sheet metal.

[0031] In the diagram: 1. Frame; 2. Conveying assembly; 21. Support frame; 22. Belt; 23. Pulley; 24. Shaft; 25. First motor; 26. Sprocket; 3. Lifting assembly; 31. Frame; 32. First drive cylinder; 33. Slide rail; 34. Slider; 35. Buffer; 4. Positioning assembly; 41. Support frame; 42. Top wheel; 43. Side wheel; 44. Pressure wheel; 45. Wheel frame; 46. Second drive cylinder; 47. Second motor; 48. Angle box; 49. Displacement sensor. Detailed Implementation

[0032] In the modern sheet metal processing industry, efficient and precise conveying and transposition of sheets are key to improving production efficiency and product quality. The sheet metal conveying device in this embodiment is designed to meet this need. Figure 1-9 As shown, it includes a frame 1, a conveying assembly 2, a lifting assembly 3, and a transposition assembly 4. These components work together to achieve linear conveying, lifting, and circumferential rotation transposition of the sheet metal, facilitating subsequent trimming, lamination, and other processing operations. The frame 1, as the fundamental support structure of the entire sheet metal conveying device, directly affects the stability and load-bearing capacity of the entire device through its design and manufacturing quality. In this embodiment, the frame 1 adopts a high-strength metal frame structure, such as high-quality carbon structural steel or alloy structural steel, manufactured through precise cutting, welding, and surface treatment processes. The frame 1 is a rectangular frame with sufficient rigidity and stability to withstand the weight of the conveying assembly 2, the lifting assembly 3, the transposition assembly 4, and the sheet metal. Adjustable support feet are provided at the bottom of the frame 1. By adjusting the height of the support feet, the frame 1 can be kept horizontal in different working environments, ensuring the smooth operation of the entire device. Furthermore, multiple mounting holes and reinforcing ribs are provided on the sides of the frame 1 to facilitate the installation and fixing of other components, while also enhancing the overall strength of the frame 1.

[0033] The conveying assembly 2, located at the top of the frame 1, is the core component of the sheet metal conveying system. Its main function is to transport the sheet metal from one end to the other. The conveying assembly 2 includes components such as a support frame 21, belts 22, pulleys 23, shafts 24, a first motor 25, and sprockets 26. The support frame 21 is crisscross shaped and made of high-strength metal materials, such as aluminum alloy or stainless steel. It is bolted to the top of the frame 1. The design of the support frame 21 not only provides installation support for the multiple conveying belts 22 but also ensures the stability of the belts 22 during operation. The crisscross structure of the support frame 21 can evenly distribute the weight of the sheet metal, reducing localized stress on the belts 22. To extend the service life of the conveyor belt 22, multiple conveyor belts 22 are evenly and spaced side-by-side on the upper part of the support frame 21 along the conveying direction. The belts 22 are made of wear-resistant, high-strength rubber material with an anti-slip texture to ensure that the sheet material does not slip during conveying. The width and length of the belts 22 are designed according to the actual size of the sheet material and conveying requirements to meet the conveying needs of different specifications of sheet material. Pulleys 23 are symmetrically arranged at both ends of the belts 22. The pulleys 23 serve to support and resist the belts 22, enabling them to run smoothly. The pulleys 23 are made of metal material with a hardened surface treatment to improve their strength and extend the service life of the belts 22. To ensure wear resistance and service life, a keyed shaft 24 is provided between the pulleys 23 arranged on the same axis. The shaft 24 is made of high-strength metal material, such as alloy steel, and is mounted on the upper part of the frame 1 via a bearing housing. The bearing housing has good sealing performance, which can prevent dust and debris from entering the bearing and ensure the rotational flexibility of the shaft 24. Shoulders and lock nuts are provided at both ends of the shaft 24 to fix the position of the pulleys 23 and prevent the pulleys 23 from moving axially on the shaft 24. At the same time, the surface of the shaft 24 is precision machined to ensure the fitting accuracy between it and the pulleys 23, reducing vibration and noise during operation. The first motor 25 is the power source of the conveying component 2. It is bolted to the side of the frame 1. The first motor 25 is an AC asynchronous motor or a DC motor, which has the characteristics of high power, stable speed and reliable operation. The output shaft of the first motor 25 is keyed to one of the shafts 24 and a sprocket 26 driven by a chain. The chain drive has the advantages of high transmission efficiency, simple structure and convenient maintenance. When the first motor 25 starts, it drives the shaft 24 to rotate through the chain, which in turn drives the pulley 23 and the belt 22 to rotate synchronously, so that the plate placed on the belt 22 can move linearly. In order to ensure the reliability of the chain drive.

[0034] The lifting assembly 3 is located outside the conveying assembly 2 and can be vertically raised and lowered along the frame 1 to lift the plate for subsequent repositioning operations. The lifting assembly 3 includes components such as a frame 31, a first drive cylinder 32, a slide rail 33, a slider 34, and a buffer 35. The frame 31 is a ring structure made of high-strength metal materials, such as carbon steel or stainless steel, and is fitted onto the outside of the frame 1. The frame 31 is designed not only to bear the weight of the plate but also to ensure stability and rigidity during the lifting process. The internal dimensions of the frame 31 are designed according to the dimensions of the frame 1 to ensure that it can be smoothly fitted onto the frame 1. The frame 31 is also equipped with reinforcing ribs and connecting holes. To facilitate connection and fixation with other components, a first drive cylinder 32 for lifting the frame 31 is arranged in the center of the lower part of the frame 1. The first drive cylinder 32 can be selected as a hydraulic cylinder, pneumatic cylinder, or electric cylinder according to the load requirements. Hydraulic cylinders have the advantages of large output force and smooth operation, and are suitable for heavy-duty applications; pneumatic cylinders have the characteristics of fast response speed and simple structure, and are suitable for applications with high speed requirements; electric cylinders have the advantages of high control precision and no pollution, and are suitable for applications with high environmental requirements. The end of the first drive cylinder 32 is fixedly connected to the frame 1 by bolts, and the top is fixedly connected to the frame 31 by bolts. When the cylinder rod of the first drive cylinder 32 is in the middle of the frame 1, the first drive cylinder 32 can be adjusted to lift the frame 31. When the cylinder moves inside, it causes a longitudinal relative displacement between the frame 31 and the machine frame 1, realizing the lifting and lowering of the frame 31. To improve the stability of the frame 31 during lifting and lowering, the upper part of the side walls around the machine frame 1 is vertically arranged with slide rails 33 connected by bolts. The slide rails 33 are high-precision linear guides with good guiding performance and wear resistance. A slider 34 connected to the frame 31 is slidably arranged on the upper part of the slide rails 33. The slider 34 is fixedly connected to the frame 31 by bolts. The frame 31 can generate directional reciprocating motion along the slide rails 33 with the help of the slider 34, avoiding circumferential positional deviation. The high matching precision of the slide rails 33 and sliders 34 reduces the frame 31's positional deviation. To ensure smooth operation of the frame 31 during lifting and lowering, miniature buffers 35 are arranged on both the upper and lower sides of the frame 31 at the top of the machine frame 1 to reduce the vibration amplitude and prevent the plate from shifting position. The buffers 35 are hydraulic or rubber buffers, which have the function of absorbing impact force and reducing vibration. When the frame 31 moves to the upper and lower limit positions, the buffers 35 can absorb the impact force and reduce vibration. The installation position and number of buffers 35 are designed according to the weight of the frame 31 and the lifting speed to ensure that they can effectively play a buffering role.

[0035] The transposition assembly 4 is located on the side of the frame 1 and can perform circumferential rotation transposition on the lifted sheet metal, enabling the sheet metal to change direction on the spot for subsequent trimming, lamination, and other processing operations. The transposition assembly 4 includes components such as a support frame 41, support rollers, pressure rollers 44, wheel frame 45, second drive cylinder 46, second motor 47, and corner box 48. The support frame 41 is located on top of the frame 31 but does not directly contact it. The support frame 41 is made of high-strength metal materials, such as aluminum alloy or stainless steel, and provides a platform for placing the sheet metal. The shape of the support frame 41... The support frame 41 is circular in shape and has rollers arranged on top of the frame 31 to support the support frame 41. It consists of a top roller 42 and side rollers 43, which are evenly spaced on the top of the frame 31 and connected to the frame 31 via a rod with bearings. The top roller 42 abuts against the lower wall of the support frame 41, and the side rollers 43 abut against the side wall of the support frame 41, thus effectively supporting the support frame 41. The rollers can rotate circumferentially, allowing the support frame 41 to rotate horizontally on top of the frame 31. A wheel frame 45 is arranged on the frame 31. Inside the wheel frame 45, with one end hinged to the frame 31 and the other end also hinged to the frame 31, a second drive cylinder 46 is arranged. The wheel frame 45 is designed to ensure stable rotation around the hinge point under the action of the second drive cylinder 46. The two ends of the second drive cylinder 46 are hinged to the frame 31 and the wheel frame 45 respectively. By extending and retracting the second drive cylinder 46, the rotation of the wheel frame 45 around the hinge point with the frame 31 is controlled. The selection of the second drive cylinder 46 is similar to that of the first drive cylinder 32, and can be selected according to the actual load and motion requirements. The top of the roller is equipped with a pressure roller 44 connected to it via a bearing. The surface of the pressure roller 44 is hardened to improve its wear resistance. The side wall of the pressure roller 44 can abut against the inner wall of the support frame 41 under the control of the second drive cylinder 46. The friction between the two drives the support frame 41 to rotate circumferentially. The size and shape of the pressure roller 44 are designed according to the inner wall size of the support frame 41 to ensure full contact with the inner wall of the support frame 41 and provide sufficient friction. At the same time, some anti-slip textures can also be set on the pressure roller 44 to further improve the friction.

[0036] The second motor 47 is horizontally arranged on the upper part of the frame 1 and connected to it by bolts. The second motor 47 is an AC asynchronous motor or a DC motor, which provides power for the rotation of the pressure roller 44. Since the second motor 47 and the pressure roller 44 are arranged relatively vertically, a corner box 48 is added between them to reverse the power transmission. The corner box 48 adopts a high-precision gear transmission mechanism, which can convert the horizontal rotational power of the second motor 47 into vertical rotational power and transmit it to the pressure roller 44. The corner box 48 is bolted to the bottom of the frame 31 and can move vertically with it to ensure the continuity of power transmission during the lifting and lowering of the support frame 41. Since there will be relative displacement between the pressure roller 44, the corner box 48, and the second motor 47, the three are connected by a telescopic universal joint to realize power transmission. The universal joint has good flexibility and transmission performance. Yes, it can ensure the stability and reliability of power transmission under relative displacement. The selection of the universal joint should be designed according to the torque and speed of power transmission to ensure that it can meet the actual working requirements. In order to improve the control accuracy of the rotation angle of the bracket 41, a proximity displacement sensor 49 for detecting the rotation angle of the bracket 41 can be added to the upper part of the frame 31. The proximity displacement sensor 49 adopts a non-contact measurement method, which can monitor the rotation angle of the bracket 41 in real time and feed the signal back to the control system. The control system precisely controls the rotation angle of the second motor 47 and the extension and retraction of the second drive cylinder 46 according to the feedback signal of the proximity displacement sensor 49, thereby realizing the precise rotation of the bracket 41. The installation position and number of proximity displacement sensors 49 are designed according to the size and rotation requirements of the bracket 41 to ensure that the rotation angle of the bracket 41 can be accurately detected.

[0037] In this embodiment, the sheet metal conveying device first starts by driving the first motor 25, which in turn drives the shaft 24, pulley 23, and belt 22 to rotate via a chain, allowing the sheet metal to move smoothly on the belt 22. When the sheet metal reaches directly above the support frame 41, the first motor 25 stops, and the first drive cylinder 32 of the lifting assembly 3 starts, driving the frame 31 to rise and lifting the sheet metal to a certain height, causing the sheet metal to disengage from the belt 22 of the conveying assembly 2. During the rise of the frame 31, the slider 34 slides along the slide rail 33, ensuring the stable lifting and lowering of the frame 31. At the same time, the buffer 35 absorbs the instantaneous impact force during start-up and stop, reducing vibration. Next, the second drive cylinder 46 of the switching assembly 4 actuates, causing the wheel frame 45 to rotate around the hinge point, driving the pressure roller 44 to abut against the inner wall of the support frame 41. The second motor 47 starts, and the first drive cylinder 46 of the switching assembly 4 starts, driving the first drive cylinder 25 to rotate via a chain, which in turn drives the second drive cylinder 46 to rotate around the hinge point, causing the second drive cylinder 45 to rotate around the hinge point, driving the second drive cylinder 46 to rotate around the hinge point, driving the second drive cylinder 45 to abut against the inner wall of the support frame 41. The universal joint and corner box 48 transmit power to the pressure roller 44. The pressure roller 44 drives the support frame 41 to rotate circumferentially by means of friction between the pressure roller 44 and the support frame 41. During the rotation of the support frame 41, the proximity displacement sensor 49 monitors the rotation angle of the support frame 41 in real time and feeds the signal back to the control system. The control system precisely controls the rotation angle of the second motor 47 according to the feedback signal to ensure that the support frame 41 rotates to the specified angle, realizing the in-situ reversal of the long and short sides of the board. After the reversal is completed, the first drive cylinder 32 of the lifting component 3 reverses its action, causing the frame 31 to descend and the board to fall back onto the belt 22 of the conveying component 2 to continue subsequent processing operations such as trimming and lamination. In the entire working process, the components work together to achieve efficient and accurate conveying and reversal of the board, improving production efficiency and product quality.

Claims

1. A plate conveying device, characterized in that: include The frame forms the basic support structure; The conveying assembly, arranged on the top of the frame, is used to realize the linear conveying of the sheet metal. It includes a support frame fixed on the frame, multiple conveying belts arranged in parallel on the upper part of the support frame, pulleys supporting both ends of the belts, a shaft passing through the coaxial pulleys, a first motor driving the shaft to rotate, and a chain drive mechanism connecting the output shaft of the first motor and the shaft. The lifting assembly, which can be vertically lifted and installed outside the frame, is used to lift the plate that is detached from the conveying assembly. It includes an annular frame and a first drive cylinder for lifting the frame. The shifting assembly, used to drive the circumferential rotation of the lifted plate, includes a support frame placed on top of the frame, a support roller supporting the support frame, a pressure roller pressing against the inner wall of the support frame, a second motor driving the pressure roller to rotate, and a second drive cylinder controlling the contact between the pressure roller and the support frame.

2. The plate conveying device according to claim 1, characterized in that: The conveying assembly also includes a support plate located below the support frame, which is bolted to the support frame and the machine frame.

3. The plate conveying device according to claim 1, characterized in that: The chain drive mechanism includes a sprocket keyed to the output shaft and shaft of the first motor and a chain meshing with the two sprockets.

4. The plate conveying device according to claim 1, characterized in that: The lifting assembly also includes a slide rail vertically mounted on the side wall of the frame and a slider that slides with the slide rail and is fixed to the frame.

5. The plate conveying device according to claim 1, characterized in that: The lifting assembly also includes buffers located at the upper and lower limit positions of the frame.

6. The plate conveying device according to claim 1, characterized in that: The support roller includes a top roller that abuts against the lower wall of the support frame and a side roller that abuts against the side wall of the support frame. The support roller is connected to the frame through a rod with bearings.

7. The plate conveying device according to claim 1, characterized in that: The second drive cylinder has a frame and a wheel frame hinged at both ends, and the top of the wheel frame is connected to a pressure roller via a bearing.

8. The plate conveying device according to claim 1, characterized in that: The transposition assembly also includes a proximity displacement sensor for detecting the rotation angle of the support frame.

9. The plate conveying device according to claim 1, characterized in that: An angle box is provided between the second motor and the pressure roller, and the angle box is connected to the output shaft of the second motor and the pressure roller respectively through a universal joint.

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