A conveying line tray lifting mechanism for industrial internet of things

Abstract

This invention discloses a pallet lifting mechanism for an industrial Internet of Things (IoT) conveyor line, comprising a pallet and multiple adjusting devices. The adjusting devices are located near the edge of the pallet, and any two adjacent adjusting devices form the same angle with the geometric center of the pallet. Each adjusting device is equipped with rollers, all of which rotate towards the center of the pallet. This invention controls the direction of movement of the pallet on the pallet by controlling the activation and deactivation of one of the adjusting devices, thus achieving balance. Activating multiple evenly distributed adjusting devices on the pallet ensures that the pallet always maintains a tendency to remain centered on the pallet, preventing material tipping due to pallet misalignment.

Description

Technical Field

[0001] This invention relates to the field of conveying device technology, specifically a pallet lifting mechanism for conveyor lines used in the Industrial Internet of Things (IIoT). Background Technology

[0002] The Industrial Internet of Things (IIoT) integrates various data acquisition, controller, mobile communication, and intelligent analysis technologies into all aspects of industrial production, making traditional industries intelligent and thus significantly improving manufacturing efficiency, product quality, and reducing product costs and resource consumption.

[0003] In industrial production processes utilizing the Industrial Internet of Things (IIoT), pallet lifting mechanisms are used for product transfer, packing, and palletizing in all stages, including manufacturing, packaging, and transportation. Pallet lifting mechanisms are widely used in modern goods transport, saving significant transportation time and improving work efficiency.

[0004] However, during the lifting process of the pallet lifting mechanism, the pallet may shift or shake due to the aging of the device. In the case of uneven material distribution, the pallet on the pallet and the material in the pallet may shift, or even cause the material to slip off.

[0005] In summary, existing pallet lifting mechanisms do not have the function of stable lifting to prevent pallet deviation and material tipping. Summary of the Invention

[0006] The purpose of this invention is to provide a pallet lifting mechanism for a conveyor line for industrial Internet of Things (IoT). By setting multiple adjustment devices facing the geometric center of the pallet surface, the pallet tends to move towards the geometric center of the pallet surface, preventing the pallet from shifting and causing the material to tip over.

[0007] During the material transport process, the pallet lifting mechanism needs to lift and transport the material to different conveyor lines. In order to facilitate the material entry and exit and the pallet lifting, the existing technology only slides one end of the pallet to the fixed bracket. The connection point is not stable. After long-term use, there is a risk that the pallet will be slightly deflected and not level. At this time, if the lifting method causes the pallet to shake, accompanied by uneven distribution of the conveyed material or the position close to the edge, the position of the pallet and the conveyed material is easily unstable, the pallet will deform / shake, and the pallet and the conveyed material will shift or tip over and fall.

[0008] The objective of this invention is mainly achieved through the following technical solutions:

[0009] A pallet lifting mechanism for an industrial Internet of Things (IIoT) conveyor includes a pallet and multiple adjusting devices. The adjusting devices are located near the edge of the pallet, and the parallel lines of the axes of the adjusting devices all pass through the geometric center of the pallet. The included angle formed by the axes of any two adjacent adjusting devices is the same. Rollers are provided on the adjusting devices, and the rollers all rotate toward the center of the pallet.

[0010] An adjustment device is installed to prevent uneven distribution of materials on the pallet or slippage of transported materials due to device wobbling.

[0011] This invention includes multiple adjusting devices, each equipped with rollers that rotate towards the center of the pallet. Through the contact and friction between the upper surfaces of the rotating rollers and the bottom of the pallet, and because the rollers all rotate towards the center of the upper surface of the pallet, in the absence of other external forces in the horizontal direction, the rollers cause the pallet to have a tendency to move in the same direction. Therefore, the pallet has multiple radially inward pushing forces. Since the parallel lines of the axes of the adjusting devices all pass through the geometric center of the pallet, and the included angle formed by any two adjacent axes of the adjusting devices is the same, the pushing forces exerted by the adjusting devices on the pallet in multiple radial directions can be balanced. This prevents the pallet from being misaligned on the pallet or from deflecting due to uneven material distribution, ensuring that the material can be efficiently and accurately transported to another conveyor line.

[0012] Furthermore, a longitudinal support is provided, the tray is slidably connected to the support, and a buffer is provided at the top of the support.

[0013] The pallet is supported by a longitudinal bracket to ensure its stability. At the same time, a guide rail is set on the bracket so that the pallet is slidably connected to the bracket. The pallet and the guide rail are perpendicular to each other, so that the pallet can be raised and lowered along the guide rail.

[0014] To ensure that the pallet accurately delivers the material to the location of another conveyor line, a buffer is installed at the top of the bracket. When the lifting cylinder pushes the pallet upward along the guide rail to a designated height, the buffer can stop the pallet from continuing to move upward, thus ensuring the accuracy of the pallet's positioning.

[0015] Furthermore, the adjusting device includes a speed-regulating motor and a rotating rod, the roller is fixed on the rotating rod, and the speed-regulating motor is mechanically connected to the end of the rotating rod.

[0016] The roller is a rubber-coated roller.

[0017] The adjusting device includes a rotating rod with a roller mounted on it. A speed-regulating motor is also provided, with its output mechanically connected to the end of the rotating rod. The rotation of the motor controls the rotation of the rotating rod, which in turn drives the rubber-coated roller. Adjusting the motor's speed controls the roller's rotation speed, thereby controlling the speed at which the roller pushes the pallet. Adjusting the speed of a specific speed-regulating motor further controls the pallet's offset in a certain direction, accommodating the pallet's displacement on the pallet and adjusting its position to prevent pallet and material misalignment.

[0018] The roller is a rubber-coated roller, which has better wear resistance compared to the existing products that use belts to contact and transport pallets.

[0019] Furthermore, the number of adjustment devices is three, and the line connecting the geometric centers of the three adjustment devices forms an isosceles triangle. The midpoint of the base of the isosceles triangle coincides with the geometric center of the surface of the tray, and the apex of the isosceles triangle faces away from the support.

[0020] Because the pallet and the bracket can support each other, the center of gravity of the pallet is biased towards the bracket, making the pallet more stable relative to the bracket and preventing it from tilting or falling over. Therefore, as a preferred embodiment, three adjustment devices are provided on the pallet.

[0021] The line connecting the geometric centers of the three adjustment devices forms an isosceles triangle. The midpoint of the base of the isosceles triangle coincides with the geometric center of the surface of the pallet. The apex of the isosceles triangle faces away from the support, so that the three adjustment devices cooperate with each other to prevent the pallet from shifting in the direction where the pallet is unsupported and unrestrained, thereby preventing the pallet and materials from falling due to continuous shift caused by the shaking / deflection of the pallet.

[0022] The direction of movement of the pallet on the pallet can be controlled by starting and stopping a certain adjustment device.

[0023] Meanwhile, activating multiple adjustment devices evenly distributed on the pallet ensures that the pallet always tends to remain centered on the pallet. In actual use, when the pallet tilts, the speed of the speed-regulating motor of the adjustment device in that tilt direction can be adjusted to control the relative movement of the pallet.

[0024] In practical use, to prevent the moving conveyor line from rubbing against the pallet, the conveyor line is often separated from the pallet. After passing through the conveyor line, the conveyed material enters the pallet by inertia. However, to prevent the conveyed material from slipping off the pallet, the pallet is not made of a smooth material. That is, when the friction from the pallet causes the conveyed material to stop, the conveyed material may not have reached the correct position. At this time, the speed-regulating motor of the adjustment device near the conveyor line can be turned on to provide power to the pallet, so that the pallet can carry the material to the middle position of the pallet.

[0025] When the conveyed pallet reaches the rotating drum, the pallet's kinetic energy is converted into the joint motion of the pallet and the rotating drum. Compared to the pallet experiencing friction in the opposite direction, the conversion into motion in the same direction as the rotating drum not only reduces the friction between the pallet and the pallet surface, but also allows the pallet to travel a greater distance forward.

[0026] To ensure that the pallet can reach the designated position on the pallet quickly and accurately, the rotation of the motor controls the rotation of the rotating rod, which drives the rubber-coated roller to rotate. The rotation speed of the rubber-coated roller is controlled by adjusting the rotation speed of the motor, thereby controlling the moving speed of the pallet to the pallet and thus accurately controlling the moving speed and the position reached by the pallet.

[0027] By adjusting the rolling direction and start / stop of the rubber-coated roller of a single adjustment device, the invention can adapt to conveyor lines in different directions at the same position, making it suitable for both conveyor lines in the same vertical direction and multi-layer conveyor lines in different directions, and it has multiple installation positions.

[0028] Furthermore, it also includes a centering device for adjusting the position of the tray, the centering device being located below the tray, the centering device comprising two sets of adjustment discs;

[0029] The adjustment disc includes two levers that penetrate the tray, the two levers having opposite adjustment directions and the same distance from the geometric center of the tray surface;

[0030] The adjustment directions of the two sets of adjustment discs are perpendicular to each other. The rotation of the rollers of the adjustment device transports the pallet to the center position of the pallet, increasing the overall stability of the device. However, the force exerted by the rollers on the pallet is difficult to control, which can easily lead to the pallet being over-positioned or under-positioned, and the pallet and material not being centered. This results in uneven distribution of the pallet and material, exacerbating the deflection of the pallet and making the pallet and material more prone to shifting and tipping during the transfer process.

[0031] The present invention provides a centering device below the tray, the centering device including two sets of adjusting discs, each adjusting disc including two actuating rods penetrating the tray, the two actuating rods adjusting in opposite directions and at the same distance from the center of the tray, so that the two actuating rods of one set of adjusting discs can be brought closer to each other, moving the tray to the center in the direction of movement of the actuating rods;

[0032] The two sets of adjustment discs are perpendicular to each other and driven by different power sources. The two sets of adjustment discs can cooperate to make the adjustment discs completely centered on the tray, increasing the stability of the device and reducing the possibility of device deflection. At the same time, the two sets of adjustment discs can move independently to adjust the centering of the tray in the adjustment direction. When the tray is a rectangle or other non-regular polygon, after the tray is centered in the direction of one adjustment disc, the other adjustment disc perpendicular to that adjustment disc can continue to adjust so that the tray is at the geometric center point of the tray.

[0033] Furthermore, the adjusting disc includes a gear and a pad arranged coaxially. The pad is rotatably connected to the rotating shaft, and the gear is fixedly connected to the rotating shaft. The pad is provided with two adjusting racks that mesh with the gear, and the two adjusting racks are located on opposite sides of the gear.

[0034] The surface of the tray is provided with a rectangular groove corresponding to the position of the adjusting rack. The actuating rod is located at one end of the adjusting rack, and the top surface of the actuating rod can pass through the rectangular groove and contact the bottom of the tray.

[0035] One set of the adjusting discs includes a gear and a pad arranged coaxially. The pad has two adjusting racks that mesh with the gear. The two adjusting racks are located on opposite sides of the gear. One end of each adjusting rack has a longitudinal actuating rod, the top of which penetrates the tray. When the shaft rotates, it drives the gear to rotate, causing the two adjusting racks on opposite sides of the gear to move relative to each other. This causes the actuating rod at the end of the adjusting rack to push the tray to the middle of the two actuating rods, thereby centering the tray in the direction of the adjusting rack's movement.

[0036] The bottom of the tray has a cavity, the centering device is located in the cavity, the rotating shaft is rotatably connected to the inner bottom surface of the cavity, and the pad is fixed to the inner side surface of the cavity.

[0037] Because the centering device includes two pads, both of which are rotatably connected to the rotating shaft, and the pads also support an adjusting rack, if the position of the pads is unstable, the position of the actuating lever will be unstable due to gravity falling along the axis of the rotating shaft, making it impossible to guarantee the movement of the tray by the actuating lever. To enhance the stability of the centering device and improve the reliability of the invention, a cavity is provided at the bottom of the tray, and the centering device is placed inside the cavity, providing a support point for the centering device. Simultaneously, this ensures that the sides of the cavity do not affect the movement of the adjusting rack of the centering device, and the two pads of the centering device are fixed to the inner surface of the cavity, guaranteeing the stability and reliability of the device.

[0038] Furthermore, a safety detector is provided on the edge of the top plate away from the conveyor line, and a positioning detector is provided on the edge of the pallet near the conveyor line. Both the safety detector and the positioning detector are located away from the adjustment device.

[0039] To ensure the accurate positioning of pallets and materials on pallets, safety detectors and position detectors are used instead of manual inspection. The detectors are distributed on the sides of the opening, so as not to block the pallets and materials from entering the pallets, and to accurately position the pallets to the designated positions.

[0040] Furthermore, a connecting plate is rotatably connected to the pallet on the side near the conveyor line.

[0041] Since different conveyor lines may have different heights, this invention requires the use of a pallet to lift and transfer materials. The movement of the pallet requires a relatively stable support structure to prevent the invention from tipping over. If the support structure itself is equipped with a height adjustment mechanism, it will reduce the stability of the support structure. Therefore, this invention uses a rotatable connecting plate to adapt to the height difference caused by different conveyor lines.

[0042] While adjusting the rotation angle, the connection changes the horizontal distance between itself and the conveyor line. During the use of this invention, the specific position and posture of the connecting plate and the support device can be set by utilizing the position and height of the end of the conveyor line.

[0043] In summary, the present invention has the following advantages compared with the prior art:

[0044] 1. Multiple adjustment devices facing the geometric center of the pallet surface are provided on the pallet to make the pallet tend to move towards the geometric center of the pallet surface, so as to prevent the material from slipping due to pallet offset;

[0045] The adjustment device includes an adjustment motor and a rubber-coated roller. By controlling the start and stop of one of the adjustment devices, the movement direction of the pallet on the pallet can be controlled to achieve balance. The angle formed by the axes of any two adjacent adjustment devices and the geometric center of the pallet is the same, which ensures that the pallet is always centered on the pallet.

[0046] 2. By using a centering device to position the adjustment dial in the middle of the support plate, the stability of the device is increased and the possibility of device deflection is reduced.

[0047] 3. The pallet is rotatably connected to a connecting plate on the side near the conveyor line, which can adapt to conveyor lines of different heights, thus broadening the applicability of the present invention. Attached Figure Description

[0048] The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0049] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0050] Figure 2 This is a front view of the present invention with the cavity side removed;

[0051] Figure 3 This is a schematic diagram of the centering device of the present invention;

[0052] Figure 4 This is a schematic diagram of the connection structure between the centering device and part of the cavity in this invention;

[0053] Figure 5 This is a schematic diagram of the structure of the adjusting device of the present invention;

[0054] The corresponding names of the attached reference numerals are: 1. Buffer; 2. Bracket; 3. Support plate; 4. Centering device; 4-1. Rotating shaft; 4-2. Gear; 4-3. Adjusting rack; 4-4. Pad plate; 5. Adjusting device; 5-1. Synchronous belt; 5-2. Speed ​​regulating motor; 5-3. Rotating rod; 5-4. Rubber-coated roller; 6. Safety detector; 7. Lifting cylinder; 8. Cavity; 9. Position detector; 10. Guide rail; 11. Cable chain. Detailed Implementation

[0055] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0056] Example:

[0057] like Figures 1-5 As shown, this embodiment relates to a pallet lifting mechanism for an industrial Internet of Things (IoT) conveyor line, comprising a pallet 3 and multiple adjusting devices 5. The adjusting devices 5 are located near the edge of the pallet 3, and the parallel lines of the axes of the adjusting devices 5 all pass through the geometric center of the pallet. The included angles formed by the axes of any two adjacent adjusting devices 5 are the same. Rollers are provided on the adjusting devices 5, and the rollers all rotate toward the center of the pallet 3.

[0058] During the material conveying process, the lifting mechanism needs to use lifting cylinders 7 and other lifting devices to lift and transport the material to different conveyor lines. In order to facilitate the material entry and exit and the lifting of the pallet 3, the existing technology only slides one end of the pallet 3 onto the fixed bracket 2, which is unstable. In this state, after the device has been used for a period of time, the connection of the pallet 3 may loosen to a certain extent. If the mass distribution of the conveyed material is uneven or the position is close to the edge, the pallet is prone to deflection, making the pallet and the conveyed material unstable, the pallet 3 deforms or shakes, and the conveyed material moves or falls off.

[0059] Adjustment device 5 is provided to prevent uneven distribution of materials on the pallet or slippage of transported materials due to device shaking.

[0060] This invention includes multiple adjusting devices 5, each equipped with a roller that rotates towards the center of the upper surface of the pallet 3. Through the contact and friction between the rotating upper surface of the roller and the bottom of the pallet, and because all rollers rotate towards the center of the upper surface of the pallet 3, in the absence of other external forces in the horizontal direction, the rollers cause the pallet to have a tendency to move in the same direction. Therefore, the pallet has multiple radially inward pushing forces. Since the angle formed by any two adjacent adjusting devices 5 and the geometric center of the pallet 3 is the same, the pushing forces of the adjusting devices 5 on the pallet 3 in multiple radial directions can be balanced. This prevents the pallet 3 from deflecting due to uneven material distribution or misalignment, ensuring that the material can be efficiently and accurately transported to another conveyor line.

[0061] Furthermore, a longitudinal support 2 is provided, the tray 3 is slidably connected to the support 2, and a buffer 1 is provided on the top of the support 2.

[0062] The support plate 3 is supported by the bracket 2 to ensure the stability of the support plate 3. A guide rail 10 is set on the support 2 so that the support plate 3 is slidably connected to the support 2. The guide rail 10 is perpendicular to the tray so that the support plate 3 can be raised and lowered along the guide rail 10.

[0063] To ensure that the pallet 3 accurately delivers the material to the location of another conveyor line, a buffer 1 is installed on the top of the bracket 2. When the lifting cylinder 7 pushes the pallet 3 to move upward along the guide rail 10 to the specified height, the buffer 1 can stop the pallet 3 from moving upward and ensure the accuracy of the pallet 3 in place.

[0064] Place the pallet and conveyed material on the pallet 3, then raise the lifting cylinder 7 to push the pallet 3 upward along the guide rail 10 until it is stopped by the buffer 1, thereby sending the pallet to another conveyor plane above the conveyor line; then lower the lifting cylinder 7 to bring the pallet 3 and the conveyed material from the upper layer to the lower layer.

[0065] In the specific implementation of the above scheme, the pallet 3 is slidably connected to the bracket 2 via the longitudinal guide rail 10, and a drag chain 11 is provided at the connection between the pallet 3 and the guide rail 10. The drag chain 11 is used in conjunction with the lifting cylinder 7 to make the pallet 3 rise and fall smoothly and stably, so that after repeated lifting and lowering, the device will not jam, stop or shake during the lifting and lowering process due to damage to the guide rail 10 or the connection.

[0066] In the specific implementation of the above scheme, a support frame is set below the bracket 2, and the support frame is placed directly on the ground to enhance the stability of the device.

[0067] Furthermore, the adjusting device 5 includes a speed-regulating motor 5-2 and a rotating rod 5-3, the roller is fixed on the rotating rod 5-3, and the speed-regulating motor 5-2 is mechanically connected to the end of the rotating rod 5-3.

[0068] The roller is a rubber-coated roller 5-4.

[0069] The adjusting device 5 includes a rotating rod 5-3, on which a roller is mounted. A speed-regulating motor 5-2 is also provided, with its output end mechanically connected to the end of the rotating rod 5-3. The rotation of the motor controls the rotation of the rotating rod 5-3, which in turn drives the rubber-coated roller 5-4 to rotate. Adjusting the motor's speed controls the rotational speed of the rubber-coated roller 5-4, thereby controlling the roller's pushing speed on the pallet 3. Adjusting the speed of a specific speed-regulating motor 5-2 further controls the pallet's offset in a certain direction, adapting to the pallet's displacement on the pallet 3, adjusting the pallet's position, and preventing pallet and material misalignment.

[0070] As one possible implementation of the above scheme, the speed-regulating motor 5-2 is connected to the end of the crossbar via a synchronous belt 5-1.

[0071] As one possible implementation of the above scheme, the speed-regulating motor 5-2 is directly connected to the end of the crossbar through bearings or other connecting parts.

[0072] The roller is a rubber-coated roller 5-4. Compared with the existing products that use belts to contact and transport pallets, the rubber-coated roller 5-4 has better wear resistance.

[0073] Furthermore, the number of adjustment devices 5 is three, and the line connecting the geometric centers of the three adjustment devices 5 forms an isosceles triangle. The midpoint of the base of the isosceles triangle coincides with the geometric center of the surface of the tray 3, and the apex of the isosceles triangle faces away from the support 2.

[0074] Because the pallet 3 and the support 2 can support each other, the center of gravity of the pallet 3 is biased towards the support 2, making the pallet 3 more stable relative to the support 2. The pallet 3 will not tilt or tip over. Therefore, as a preferred embodiment, three adjustment devices 5 are provided on the pallet 3. The line connecting the geometric centers of the three adjustment devices 5 forms an isosceles triangle. The midpoint of the base of the isosceles triangle coincides with the geometric center of the surface of the pallet 3. The apex of the isosceles triangle faces away from the support 2. The three adjustment devices 5 cooperate with each other to prevent the pallet from shifting in the direction where the pallet 3 is unsupported and unrestrained, thereby preventing the pallet and materials from falling due to continuous shifting caused by the shaking / deflection of the pallet 3.

[0075] The direction of movement of the pallet on the pallet 3 can be controlled by starting and stopping one of the adjustment devices 5.

[0076] Simultaneously, activating multiple adjustment devices 5 evenly distributed on the pallet 3 ensures that the pallet always maintains a tendency to be centered on the pallet 3. In practical use, when the pallet 3 tilts, the speed of the speed-regulating motor 5-2 of the adjustment device 5 in the tilt direction can be adjusted to control the relative movement trend of the pallet.

[0077] In practical use, to prevent the moving conveyor line from scraping against the pallet 3, the conveyor line is often separated from the pallet 3. After passing through the conveyor line, the conveyed material enters the pallet 3 by inertia. However, to prevent the conveyed material from slipping off the pallet 3, the pallet 3 is not made of a smooth material. That is, when the friction from the pallet 3 causes the conveyed material to stop, the conveyed material may not have reached the correct position. At this time, the speed-regulating motor 5-2 of the adjusting device 5 near the conveyor line can be turned on to provide power to the pallet, so that the pallet can carry the material to the middle position of the pallet 3.

[0078] When the pallet being transported reaches the rotating drum, the kinetic energy of the pallet is converted into the joint motion of the pallet and the rotating drum. Compared to the friction in the opposite direction experienced by the pallet, the conversion into the same direction of motion with the rotating drum not only reduces the friction between the pallet and the surface of the pallet plate 3, but also allows the pallet to travel a greater distance forward.

[0079] To ensure that the pallet can quickly and accurately reach the designated position of the pallet 3, the rotation of the motor controls the rotation of the rotating rod 5-3 to drive the rubber-coated roller 5-4 to rotate, and the rotation speed of the rubber-coated roller 5-4 is controlled by adjusting the rotation speed of the motor, thereby controlling the moving speed of the pallet reaching the pallet 3, and thus accurately controlling the moving speed and the position reached by the pallet.

[0080] The invention can adapt to conveyor lines in different directions at the same position by adjusting the rolling direction and start / stop of the rubber-coated rollers 5-4 of the individual adjustment device 5. This makes the invention suitable for both conveyor lines in the same vertical direction and multi-layer conveyor lines in different directions, and it has multiple installation positions.

[0081] Furthermore, it also includes a centering device 4 for adjusting the position of the tray, the centering device 4 being located below the tray 3, the centering device 4 including two sets of adjustment discs;

[0082] The adjustment disc includes two levers that penetrate the support plate 3. The two levers are adjusted in opposite directions, and the two levers are equidistant from the vertical line of the support plate 3.

[0083] The adjustment directions of the two sets of adjustment discs are perpendicular to each other.

[0084] The pallet is transported to the center position of the pallet 3 by adjusting the rotation of the roller of the adjustment device 5, which increases the overall stability of the device. However, the force exerted by the roller on the pallet is difficult to control, which can easily cause the pallet to be over-positioned or under-positioned, and the pallet and material to be out of center. This results in the distribution of the pallet and material, aggravates the deflection of the pallet 3, and makes the pallet and material more prone to deflection and tipping during the transmission process.

[0085] The present invention provides a centering device 4 below the tray 3. The centering device 4 includes two sets of adjusting discs. Each adjusting disc includes two actuating rods that penetrate the tray 3. The actuating rods have opposite adjustment directions and are equidistant from the center of the tray 3. Thus, the two adjusting racks of one set of adjusting discs can be brought closer together to move the tray to the center in the direction of movement of the actuating rods.

[0086] The adjustment directions of the two sets of adjustment discs are perpendicular to each other, the rotation axes of the two sets of adjustment discs are independent, and the gears of the two sets of adjustment discs rotate independently without interference. That is, the two sets of adjustment discs can cooperate to make the adjustment discs completely centered on the tray 3, increasing the stability of the device and reducing the possibility of device deflection; at the same time, the two sets of adjustment discs can move independently to adjust the centering of the tray in the adjustment direction. When the tray is a rectangle or other non-regular polygon, after the tray is centered in the direction of one adjustment disc, the other adjustment disc perpendicular to that adjustment disc can continue to be adjusted so that the tray is at the geometric center point of the tray.

[0087] Furthermore, the adjusting disc includes a gear 4-2 and a pad 4-4 coaxially arranged. The pad 4-4 is rotatably connected to the rotating shaft 4-1. The gear 4-2 is fixedly connected to the rotating shaft 4-1. The pad is provided with two adjusting racks 4-3 that mesh with the gear 4-2. The two adjusting racks 4-3 are located on opposite sides of the gear 4-2.

[0088] The surface of the tray 3 is provided with a rectangular groove corresponding to the position of the adjusting rack. The actuating rod is located at one end of the adjusting rack. The top surface of the actuating rod can pass through the rectangular groove and actuate the tray to the middle of the tray 3.

[0089] As one embodiment of the centering device 4, the two sets of adjustment discs are connected by a rotating shaft 4-1, so the two sets of adjustment discs are coaxial. One set of adjustment discs includes a gear 4-2 and a pad 4-4 arranged coaxially. The pad is provided with two adjusting racks 4-3 that mesh with the gear 4-2. The two adjusting racks 4-3 are located on opposite sides of the gear 4-2. One end of the adjusting rack has a longitudinal actuating rod, and the top of the actuating rod penetrates the support plate 3.

[0090] As a preferred embodiment of the centering device 4, if the tray is a polygon with unequal side lengths, the two sets of adjustment discs are controlled by different rotating shafts / gears to achieve different adjustment distances.

[0091] The rotation of the shaft 4-1 will drive the gears 4-2 and 4-5 to rotate, causing the adjusting racks 4-3 located on opposite sides of the gears 4-2 to move relative to each other towards the center of the tray, so that the lever at the end of the adjusting rack will push the tray to the middle of the tray 3.

[0092] The bottom of the tray 3 is provided with a cavity 8, the centering device 4 is located in the cavity 8, the rotating shaft 4-1 is rotatably connected to the inner bottom surface of the cavity 8, and the pad is fixed to the inner side surface of the cavity 8.

[0093] Since the centering device 4 includes two pads, both of which are rotatably connected to the rotating shaft 4-1, and the pads also support an adjusting rack, if the position of the pads is unstable, the position of the actuating rod will be unstable due to gravity falling along the axis of the rotating shaft 4-1, and the movement of the actuating rod on the tray cannot be guaranteed. To enhance the stability of the centering device 4 and improve the reliability of the invention, a cavity 8 is provided at the bottom of the tray 3, and the centering device 4 is placed in the cavity 8 to provide stable support for the centering device 4. At the same time, the sides of the cavity 8 do not affect the movement of the adjusting rack of the centering device 4. The two pads of the centering device 4 are fixed to the inner surface of the cavity 8 to ensure the stability and reliability of the device.

[0094] As one possible implementation of the above scheme, the internal volume of the cavity 8 is sufficient to accommodate the movement of the adjusting rack of the centering device 4.

[0095] As one possible implementation of the above solution, the sidewall of the cavity 8 has a through groove large enough to accommodate the actuating rod. Furthermore, a safety detector 6 is provided on the edge of the top plate away from the conveyor line, and a positioning detector 9 is provided on the edge of the tray 3 near the conveyor line. Both the safety detector 6 and the positioning detector 9 avoid the adjusting device 5.

[0096] To ensure that the pallet and materials arrive at the pallet 3 accurately, a safety detector 6 and a positioning detector 9 are used instead of manual inspection. The detectors are distributed on the side of the opening so that they do not block the pallet 3 and materials from entering the pallet, and can accurately position the pallet 3 to the designated position.

[0097] To ensure the accuracy of material delivery, a safety detector 6 is provided on the side edge of the opening near the conveyor line. When the conveyed material reaches the pallet 3 from the conveyor line, the speed regulating motor 5-2 of the adjusting device 5 near the conveyor line is turned on, so that the pallet moves towards the center of the pallet 3.

[0098] A positioning detector 9 is installed on the side of the opening away from the conveyor line. When the conveyed material reaches the designated position of the pallet 3, the speed regulating motor 5-2 is stopped to prevent the conveyed material from moving too far or too close on the pallet 3, which would cause uneven mass distribution between the pallet 3 and the material, thus causing the pallet 3 to deflect.

[0099] Furthermore, the pallet 3 is rotatably connected to a connecting plate on the side near the conveyor line.

[0100] Since different conveyor lines may have different heights, the present invention requires the lifting and lowering of the pallet 3 to transfer materials during use. The movement of the pallet 3 requires a relatively stable support structure to prevent the present invention from tipping over. If the support structure itself is equipped with a height adjustment mechanism, the stability of the support structure will be reduced. Therefore, the present invention uses a rotatable connecting plate to adapt to the height difference caused by different conveyor lines.

[0101] While adjusting the rotation angle, the connection changes the horizontal distance between itself and the conveyor line. During the use of this invention, the specific position and posture of the connecting plate and the support device can be set by utilizing the position and height of the end of the conveyor line.

[0102] As one embodiment of the present invention, it includes a support frame, on which there is a longitudinal support 2, and a slide rail is provided on the support 2. A shell-shaped tray 3 is slidably connected on the slide rail. The tray 3 is connected to the support 2 by a drag chain 11 and the tray 3 is perpendicular to the support 2. A buffer 1 is provided on the top of the support 2.

[0103] The surface of the tray 3 has three openings, and an adjustment device 5 is provided in one opening. The three adjustment devices 5 are respectively located on opposite sides of the bracket 2 and on adjacent sides of the bracket 2. The upper surface of the tray 3 has a rectangular groove in the shape of a "well". The adjustment device 5 avoids the rectangular groove. A centering device 4 is provided inside the shell of the tray 3.

[0104] The adjusting device 5 includes a speed-regulating motor 5-2 and a rotating rod 5-3. The roller is fixed on the rotating rod 5-3. The speed-regulating motor 5-2 is connected to the end of the rotating rod 5-3. The roller is a rubber-coated roller 5-4.

[0105] The centering device 4 includes two sets of adjustment discs. Each adjustment disc includes two levers that penetrate the support plate 3. The two levers are adjusted in opposite directions and are equidistant from the center of the support plate 3. The adjustment directions of the two sets of adjustment discs are perpendicular to each other.

[0106] The adjusting disc includes a gear 4-2 and a pad 4-4 coaxially arranged. The pad 4-4 is rotatably connected to the rotating shaft 4-1. The gear 4-2 is fixedly connected to the rotating shaft 4-1. The pad is provided with two adjusting racks 4-3 that mesh with the gear 4-2. The two adjusting racks 4-3 are located on opposite sides of the gear 4-2. The actuating rod is located at one end of the adjusting rack. The top surface of the actuating rod can pass through the rectangular groove and move the tray to the middle of the support plate 3.

[0107] The edge of the top plate away from the conveyor line is also provided with a safety detector 6, and the edge of the pallet 3 near the conveyor line is provided with a positioning detector 9. Both the safety detector 6 and the positioning detector 9 are located away from the adjustment device 5.

[0108] In practical use, the above scheme is used so that when the pallet enters the pallet 3 from the lower conveyor line, the safety detector 6 is triggered. The safety detector 6 then gives a signal to make the speed regulating motor 5-2 of the adjusting device 5 near the conveyor line work, so that the rubber-coated roller 5-4 of the adjusting device 5 rotates and transports the pallet between the four levers of the centering device 4.

[0109] Then the rotating shaft 4-1 of the centering device 4 rotates, causing the gear 4-2 to rotate, which causes the two adjusting racks located on opposite sides of the gear to move towards each other, thereby pushing the tray to the middle of the four levers, that is, the middle of the tray 3, triggering the position detector 9, and then stopping the rotation of the rotating shaft 4-1 of the centering device 4.

[0110] At the same time, the three adjusting devices 5 are activated, causing the three rollers to rotate toward the center of the pallet 3. The lifting cylinder 7 extends and pushes the pallet 3 upward along the guide rail 10 until it is stopped by the buffer 1.

[0111] Once the pallet reaches the upper position, the speed-regulating motor 5-2 of the adjusting device 5 on the side near the upper conveyor line rotates in the opposite direction, driving the rollers to rotate in the opposite direction, thereby sending the pallet to the upper conveyor line.

[0112] When the safety detector 6 senses that the tray has completely left the mechanism, after a short delay, the speed-regulating motor 5-2 stops, the lifting cylinder 7 retracts, and the tray 3 returns to the position of the lower conveyor line.

[0113] By reversing the above steps, the pallet can be transferred from the upper conveyor line to the lower conveyor line.

[0114] As one possible implementation of the above solution, the actuating rod of the centering device 4 is a telescopic rod. During the process of the pallet moving in and out of the pallet 3, the actuating rod is compressed so that the pallet can move in and out of the pallet horizontally without being affected by the centering device 4.

[0115] Specifically, during the lifting process of the present invention, the centering device 4 can replace the adjusting device 5 to fix the tray and prevent the tray from shifting.

[0116] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A pallet lifting mechanism for a conveyor line for industrial Internet of Things, comprising a pallet (3), characterized in that: It also includes multiple adjustment devices (5), which are located near the edge of the tray (3). The parallel lines of the axis of the adjustment device (5) all pass through the geometric center of the tray (3). The included angle formed by the axes of any two adjacent adjustment devices (5) is the same. Rollers are provided on the adjustment device (5), and the rollers all rotate toward the center of the tray (3). It also includes a centering device (4) for adjusting the position of the tray, the centering device (4) being located below the tray (3), the centering device (4) comprising two sets of adjusting discs, The adjustment disc includes two longitudinally penetrating levers through the tray (3), the two levers having opposite adjustment directions, and the two levers having the same distance from the geometric center of the surface of the tray (3). The adjustment directions of the two sets of adjustment discs are perpendicular to each other.

2. The conveyor line pallet lifting mechanism for industrial IoT as described in claim 1, characterized in that: It is also provided with a longitudinal support (2), the tray (3) is slidably connected to the support (2), and a buffer (1) is provided on the top of the support (2).

3. The pallet lifting mechanism for an industrial Internet of Things as described in claim 2, characterized in that: The adjusting device (5) includes a speed-regulating motor (5-2) and a rotating rod (5-3). The roller is fixed on the rotating rod (5-3), and the speed-regulating motor (5-2) is mechanically connected to the end of the rotating rod (5-3). The roller is a rubber-coated roller (5-4).

4. A conveyor line pallet lifting mechanism for industrial IoT as described in claim 3, characterized in that: The number of adjustment devices (5) is three, and the line connecting the geometric centers of the three adjustment devices (5) is an isosceles triangle. The midpoint of the base of the isosceles triangle coincides with the geometric center of the surface of the tray (3), and the apex of the isosceles triangle faces away from the support (2).

5. A conveyor line pallet lifting mechanism for industrial IoT as described in claim 1, characterized in that: The adjusting disc includes a gear (4-2) and a pad (4-4) arranged coaxially. The pad (4-4) is rotatably connected to the rotating shaft (4-1). The gear (4-2) is fixedly connected to the rotating shaft (4-1). The pad (4-4) is provided with two adjusting racks (4-3) that mesh with the gear (4-2). The two adjusting racks (4-3) are located on opposite sides of the gear (4-2). The surface of the tray (3) is provided with a rectangular groove corresponding to the position of the adjusting rack. The actuating rod is located at one end of the adjusting rack, and the top surface of the actuating rod can pass through the rectangular groove and contact the bottom of the tray.

6. A conveyor line pallet lifting mechanism for industrial IoT as described in claim 5, characterized in that: The tray (3) has a cavity (8), the centering device (4) is located in the cavity (8), the rotating shaft (4-1) is rotatably connected to the inner bottom surface of the cavity (8), and the pad is fixed to the inner side surface of the cavity (8).

7. A conveyor line pallet lifting mechanism for industrial IoT as described in claim 1, characterized in that: The pallet (3) is provided with a safety detector (6) on the edge away from the conveyor line, and a positioning detector (9) is provided on the edge of the pallet (3) close to the conveyor line. Both the safety detector (6) and the positioning detector (9) are away from the adjustment device (5).

8. A conveyor line pallet lifting mechanism for industrial IoT as described in claim 1, characterized in that: The pallet (3) is rotatably connected to a connecting plate on the side near the conveyor line.

Images