Metal square tube transporting and stacking device

Abstract

The present application relates to metal square tube stacking device technical field, specifically for a kind of metal square tube transport stacking device, comprising: material conveying mechanism, feeding mechanism and stacking mechanism.Material conveying mechanism is located on a plane, it is used to transport square tube.The stacking mechanism is located on the same plane with the material conveying mechanism, it is used to receive the square tube transported by material conveying mechanism and square tube stacking.Feeding mechanism is located at the junction of material conveying mechanism and stacking mechanism, it is used to move the square tube on material conveying mechanism to stacking mechanism.Feeding mechanism is located at the end of material conveying mechanism output, it is used to limit square tube, and also used to receive the impact force of square tube transported by material conveying mechanism to open the drive of feeding mechanism.After starting, feeding mechanism rotates, and the square tube on material conveying mechanism is turned over to stacking mechanism, after the transportation of square tube by stacking mechanism, the horizontal state of square tube can be corrected in the middle of transportation, and square tube is stacked.

Description

Technical Field

[0001] This invention relates to the field of metal square tube palletizing device technology, specifically a metal square tube transport and palletizing device. Background Technology

[0002] Square tubes are widely used in building structures, machinery manufacturing, and decoration engineering. During the production and processing of square tubes, after being cut and shaped, they need to undergo conveying and stacking processes before entering warehousing or transportation. Currently, the transportation and stacking of square tubes mainly rely on manual handling or crane transfer. The former is labor-intensive, inefficient, and poses safety hazards, while the latter, although replacing manual labor to some extent, still requires manual assistance during stacking, and the tubes are prone to collision damage. Existing automated stacking equipment, while integrating multiple functional modules such as conveying, lateral movement, and stacking, and possessing a high level of automation, has a complex structure and high manufacturing cost, making it unsuitable for small- to medium-scale production scenarios.

[0003] In the aforementioned existing technologies, the material conveying mechanism and the palletizing mechanism of square tubes typically lack a dedicated connecting device. This leads to problems such as positional shifts and misalignment during the transfer of square tubes from the conveyor line to the palletizing station, affecting the neatness and stability of the stacking. Furthermore, the layout of the feeding, conveying, and palletizing mechanisms in existing equipment is not compact enough, and the coordination between the mechanisms is insufficient, making it difficult to achieve a smooth transition of square tubes from transportation to palletizing. Therefore, there is an urgent need for a device with a simple structure, reasonable layout, and the ability to achieve a smooth transition of square tubes from transportation to palletizing. Summary of the Invention

[0004] The purpose of this invention is to provide a metal square tube transport and palletizing device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a metal square tube transport and palletizing device, comprising: A material conveying mechanism, which is disposed on a plane, is used to transport the square tube; A palletizing mechanism, which is located on the same plane as the material conveying mechanism, is used to receive the square tubes transported by the material conveying mechanism and to palletize the square tubes. A feeding mechanism is provided at the connection between the conveying mechanism and the stacking mechanism, and is used to transfer the square tube on the conveying mechanism to the stacking mechanism.

[0006] In some embodiments, the palletizing mechanism includes a conveying unit and a pushing unit; The pushing unit is located on one side of the conveying unit. The conveying unit is used to transport the square tube to the pushing unit, and the pushing unit is used to stack the square tube.

[0007] In some embodiments, the conveying unit includes a housing, and the inner side of the housing is provided with four drive wheels, all of which are arranged in a mirror-image configuration. A motor for driving the transmission wheel to rotate is connected to the outer side of the housing; A conveyor belt is sleeved on the outside of the drive wheel, and the conveyor belt is used to transport the square tube by being driven by the drive wheel.

[0008] In some embodiments, the pushing unit includes a leveling module and a driving module, both of which are disposed on the conveying unit and connected to each other. The inner side of the conveying unit is provided with a sliding groove, which is used to adapt to the leveling module and the drive module for connection and movement.

[0009] In some embodiments, the drive module includes a pusher platform disposed on the conveying unit, and a sliding groove is provided on one side of the pusher platform; The drive module also includes an air pump located inside the push platform. The output end of the air pump is connected to a telescopic rod. A transmission rod is provided on the outside of the telescopic rod. The transmission rod is located in the chute and extends outward to the conveying unit and is connected to the leveling module. The telescopic rod is provided with a support platform at one end, and the support platform is connected to one end of the tension spring. The other end of the tension spring is provided with a pusher, which is located in the sliding groove and protrudes from the sliding groove. The pusher is driven by the air pump to push the square tube.

[0010] In some embodiments, the telescopic rod has a base at the end away from the air pump, and the base has an adapter groove for accommodating the tension spring. The base has a connecting shaft on the side that moves along the square tube, and the connecting shaft is connected to the pusher. The connecting shaft is located inside the push platform.

[0011] In some embodiments, the leveling module includes a plug rod disposed on the conveying unit, a reset member sleeved on the outside of the plug rod, a drive groove being formed inside the reset member, and a connecting hole being formed through the reset member. A traction member is connected between the reset member and the transmission rod. One end of the traction member is connected to a snap-fit ​​member, which is located in the drive groove. The other end of the traction member is provided with a sleeve, which is sleeved on the part of the transmission rod that protrudes from the slide groove.

[0012] In some embodiments, the feeding mechanism includes a housing, which is located on the same plane as the conveying mechanism. The housing is provided with a reset actuator, which includes a base plate connected to the housing. The base plate is provided with a hit button and a support spring, which is located around the hit button. The other end of the support spring is provided with a strike plate, and the side of the strike plate near the base plate is provided with an activation button, the activation button and the strike button being positioned opposite each other; The outer side of the base plate is also provided with a limiting plate. A limiting groove is opened on the side of the limiting plate facing the impact plate. A limiting block is provided at one end of the impact plate near the limiting plate. The limiting block is engaged in the limiting groove. The housing is also provided with a receiving groove, and a drive motor is installed inside the receiving groove; The housing is also provided with a rotating shaft, the rotating shaft and the output end of the drive motor are located in the same direction, and a synchronous belt is sleeved on the drive motor and the rotating shaft; A feeding wheel is connected to the rotating shaft. The feeding wheel includes a rotating rod connected to the rotating shaft. A deflector plate is sleeved on the rotating rod. The deflector plate is provided with a clamping plate for clamping the square tube. The end of the feeding wheel away from the rotating shaft is provided with a support seat, which is used to stabilize the feeding wheel.

[0013] In some embodiments, the housing includes a circuit connected to the pressed button and the drive motor; The circuit includes a power-on module and a trigger module; The power-on module is used to ensure that the circuit is always powered on after the feeding mechanism is started, and is only disconnected by the activated button, which is normally open. The trigger module is used to power on the circuit and start the motor to rotate when the pressed button is closed. The pressed button is a reset button that can automatically reset to the normally open position.

[0014] In some embodiments, the circuit further includes a self-locking module and a protection module; The self-locking module is used so that when the button is pressed and reset, the circuit switches to the auxiliary contact, the drive motor continues to rotate until it rotates to a preset angle, triggers the limit switch, cuts off the power supply circuit of the circuit, and the drive motor stops rotating and locks to a fixed angle. The protection module is used to protect the circuit. When the limit switch fails to be triggered at the preset position, the power supply circuit of the circuit is forcibly disconnected, causing the drive motor to brake urgently. The protection module is also used to monitor the circuit status and protect the circuit when an abnormality occurs.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: The metal square tube transport and stacking device includes: a conveying mechanism, a loading mechanism, and a stacking mechanism. The conveying mechanism is located on a plane and is used for transporting square tubes. The stacking mechanism is located on the same plane as the conveying mechanism and is used to receive the square tubes transported by the conveying mechanism and stack them. The loading mechanism is located at the connection between the conveying mechanism and the stacking mechanism and is used to transfer the square tubes from the conveying mechanism to the stacking mechanism. The loading mechanism is located at the output end of the conveying mechanism and is used to limit the movement of the square tubes while also receiving the impact force from the conveying mechanism during the transport of the square tubes to activate the loading mechanism. After activation, the loading mechanism rotates, flipping the square tubes from the conveying mechanism onto the stacking mechanism. The stacking mechanism transports the square tubes, corrects their horizontal position during transport, and stacks them. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 For the present invention Figure 1 Enlarged structural diagram at point A; Figure 3 This is a schematic diagram of the shell structure of the present invention; Figure 4 This is a schematic diagram of the reset actuator structure of the present invention; Figure 5 This is a schematic diagram of the feeding wheel structure of the present invention; Figure 6 This is a schematic diagram of the palletizing mechanism of the present invention; Figure 7 This is a schematic diagram of the telescopic rod structure of the present invention; Figure 8 For the present invention Figure 7 A schematic diagram of the structure after removing the pusher component; Figure 9 This is a schematic cross-sectional view of the resetting component of the present invention; Figure 10 This is a schematic diagram of the traction component structure of the present invention; Figure 11 This is a circuit diagram of the housing of the present invention.

[0017] In the diagram: 1. Conveying mechanism; 11. Roller; 2. Feeding mechanism; 21. Housing; 211. Receiving groove; 22. Reset trigger; 221. Base plate; 222. Limiting plate; 2221. Limiting groove; 223. Impact plate; 2231. Limiting block; 224. Support spring; 225. Trigger button; 226. Impact button; 23. Drive motor; 24. Synchronous belt; 25. Rotating shaft; 26. Feeding wheel; 261. Rotating rod; 262. Actuating plate; 263. Palletizing plate; 27. Support base; 3. Palletizer 31. Outer shell; 32. Conveyor belt; 33. Drive wheel; 34. Pushing platform; 341. Sliding groove; 35. Connecting rod; 36. Sliding groove; 37. Air pump; 371. Telescopic rod; 3711. Drive rod; 3712. Support platform; 3713. Tension spring; 3714. Base; 3715. Adaptor groove; 3716. Connecting shaft; 3717. Pushing component; 38. Resetting component; 381. Drive groove; 382. Connecting hole; 39. Traction component; 391. Snap-fit ​​component; 392. Sleeve; 4. Square tube. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-11 The present invention provides a technical solution: a metal square tube transport and stacking device, comprising: a material conveying mechanism 1, a material feeding mechanism 2 and a stacking mechanism 3.

[0020] The conveying mechanism 1 is located on a plane and is used to transport the square tubes 4. The stacking mechanism 3 is located on the same plane as the conveying mechanism 1 and is used to receive the square tubes 4 transported by the conveying mechanism 1 and stack them. The loading mechanism 2 is located at the connection between the conveying mechanism 1 and the stacking mechanism 3 and is used to transfer the square tubes 4 from the conveying mechanism 1 to the stacking mechanism 3. The loading mechanism 2 is located at the output end of the conveying mechanism 1 and serves to limit the movement of the square tubes 4 while also receiving the impact force from the conveying mechanism 1 during the transport of the square tubes 4 to activate the loading mechanism 2. After activation, the loading mechanism 2 rotates, flipping the square tubes 4 from the conveying mechanism 1 onto the stacking mechanism 3. The stacking mechanism 3 then transports the square tubes 4, correcting their horizontal position during transport and stacking them.

[0021] The conveying mechanism 1 operates continuously at a set conveying speed, and the square tubes 4 carried on it gain a corresponding travel speed as the conveying mechanism 1 moves. When the square tubes 4 are conveyed to the output end of the conveying mechanism 1, the limiting part of the loading mechanism 2 blocks the travel path of the square tubes 4. The square tubes 4 impact the limiting part of the loading mechanism 2 with their initial speed when running on the conveying mechanism 1, and the impact force generated by this impact acts directly on the loading mechanism 2. When the impact force corresponding to the initial speed of the square tubes 4 reaches the drive trigger threshold of the loading mechanism 2, the limiting function of the loading mechanism 2 is released and a flipping action is initiated, flipping the square tubes 4 that impacted its limiting part to the stacking mechanism 3. Each square tube 4 independently completes one impact and triggering process with its own initial speed obtained on the conveying mechanism 1. The running speed of the square tubes 4 is matched with the flipping rhythm of the loading mechanism 2 to achieve continuous feeding of square tubes 4 one by one.

[0022] The material conveying mechanism 1 is equipped with a roller 11, which contacts the square tube 4 and rotates to adapt to the movement of the square tube 4, thereby reducing the frictional contact between the roller 11 and the square tube 4.

[0023] like Figure 1 and Figure 6 As shown, the palletizing mechanism 3 includes a conveying unit and a pushing unit. The pushing unit is located on one side of the conveying unit. The conveying unit is used to convey the parallel tubes 4 to the pushing unit, and the pushing unit is used to palletize the parallel tubes 4.

[0024] The conveying unit includes a housing 31, with four drive wheels 33 arranged in a mirror-image configuration on the inner side of the housing 31. This design is suitable for matching the length of the square tube 4, ensuring stable transport of the square tube 4. A motor for driving the rotation of the drive wheels 33 is connected to the outer side of the housing 31. The motor's output is connected to the drive wheels 33, directly driving their rotation. Two conveyor belts 32 are fitted around the outer side of the drive wheels 33. Each conveyor belt 32 is mounted on two drive wheels 33, arranged in parallel. Synchronizing rods are also provided on the mirror-image drive wheels 33 to synchronize their rotational speeds. This ensures that the two conveyor belts 32 operate synchronously, preventing the square tube 4 on the conveyor belts 32 from tilting due to inconsistent rotational speeds.

[0025] The conveyor belt 32 extends along the length of the outer shell 31, and its conveying end is adjacent to the temporary storage area of ​​the pusher 34. When the square tube 4 moves to the end of the conveyor belt 32 under the drive of the conveyor belt 32, it relies on its own inertia to leave the conveyor belt 32 and enter the temporary storage area of ​​the pusher 34, realizing the transition of the square tube 4 from the conveying unit to the pusher unit.

[0026] The pushing unit includes a leveling module and a driving module, both of which are mounted on the conveying unit and connected to each other. A sliding groove 36 is provided on the inner side of the conveying unit. The sliding groove 36 is used to accommodate the connection and movement of the leveling module and the driving module. The sliding groove 36 is located on the inner side of the outer casing 31. Figure 6 As shown, there are two outer shells 31, therefore there are also two sliding grooves 36.

[0027] like Figure 6 As shown, the drive module includes a pusher platform 34 mounted on the conveyor unit. The pusher platform 34 is slightly lower than the height of the conveyor belt 32, and extends beyond the conveyor belt 32. The extended portion serves as a temporary storage area for temporarily storing the square tubes 4, facilitating the stacking and pushing of the square tubes 4. A sliding groove 341 is provided on one side of the pusher platform 34.

[0028] The drive module also includes an air pump 37 located inside the push platform 34. The output end of the air pump 37 is connected to a telescopic rod 371, which is driven by the air pump 37 to move in the direction of the square tube 4. The air pump 37 and the telescopic rod 371 are positioned parallel to the conveyor belt 32. A transmission rod 3711 is located on the outer side of the telescopic rod 371. The transmission rod 3711 is located in the chute 36 and extends outwards from the conveying unit to connect with the leveling module. Thus, when the telescopic rod 371 is driven by the air pump 37 to move, the transmission rod 3711 can move synchronously within the chute 36.

[0029] The push platform 34 is located in front of the conveying end of the conveyor belt 32. The push platform 34 extends along the conveying direction of the square tube 4 and extends beyond the end of the conveyor belt 32. The extended part constitutes a temporary storage area, which is located on the output path of the conveyor belt 32 and is used to temporarily store the square tube 4 and wait for it to be pushed.

[0030] like Figure 6 and Figure 7 As shown, the telescopic rod 371 has a support platform 3712 at one end, which is connected to one end of a tension spring 3713. The other end of the tension spring 3713 has a pusher 3717, which is pulled by the tension spring 3713 to achieve a reset effect. The pusher 3717 is located in the sliding groove 341 and protrudes from the sliding groove 341. This design allows the pusher 3717, which protrudes from the sliding groove 341, to contact the square tube 4. The pusher 3717 is driven by the air pump 37 to push the square tube 4.

[0031] The sliding groove 341 is opened on one side of the pusher 34 along the conveying direction of the square tube 4, with its two ends extending towards the outside of the conveyor belt 32 and the temporary storage area, respectively. The pusher 3717 is disposed in the sliding groove 341 and moves back and forth along the length of the sliding groove 341. The sliding groove 341 provides guidance and constraint for the movement path of the pusher 3717.

[0032] The support platform 3712 is fixed to one end of the telescopic rod 371 near the pusher 3717 and moves synchronously with the telescopic rod 371. One end of the tension spring 3713 is fixed to the support platform 3712 and the other end is connected to the pusher 3717. The tension spring 3713 is arranged along the telescopic direction of the telescopic rod 371 and applies a pulling force to the pusher 3717 toward the support platform 3712.

[0033] A base 3714 is provided at the end of the telescopic rod 371 away from the air pump 37. The base 3714 also supports the pusher 3717 to ensure that the support force is maintained when the square tube 4 is stacked. An adapter groove 3715 is provided on the base 3714 to accommodate the tension spring 3713. A connecting shaft 3716 is provided on the side of the base 3714 that moves along the square tube 4. The connecting shaft 3716 is connected to the pusher 3717. When the square tube 4 passes the pusher 3717, the pusher 3717 is pushed down by the movement of the square tube 4. The pusher 3717 will rotate under the influence of the connecting shaft 3716. The connecting shaft 3716 is arc-shaped in the direction from which the square tube 4 moves, so as to facilitate the application of rotational pushing force to the connecting shaft 3716 and make it easier for the square tube 4 to pass through the pusher 3717. The connecting shaft 3716 is located inside the push platform 34. This height design allows the pusher 3717 to be submerged in the push platform 34 when it rotates in the direction the square tube 4 is moving, without obstructing the movement of the square tube 4. After the square tube 4 has moved, the tension spring 3713 will pull the pusher 3717 to return it to its original position.

[0034] Under normal conditions, the pusher 3717 extends out of the sliding groove 341 and protrudes from the upper surface of the pusher table 34, with its bottom end hinged to the connecting shaft 3716. When the square tube 4 moves along the conveying direction to the position of the pusher 3717, the end of the square tube 4 abuts against the part of the pusher 3717 that protrudes from the pusher table 34. The pusher 3717 rotates around the connecting shaft 3716 under the push of the square tube 4, and gradually retracts into the pusher table 34 during the rotation, so that the upper end of the pusher 3717 is not higher than the upper surface of the pusher table 34, thereby avoiding the travel path of the square tube 4, and the square tube 4 can continue to move along the surface of the pusher table 34. When the square tube 4 has completely passed the position of the pusher 3717, the resistance of the square tube 4 to the pusher 3717 disappears, and the pusher 3717 rotates in the opposite direction around the connecting shaft 3716 under the pulling action of the tension spring 3713, returning to the state of protruding from the upper surface of the pusher table 34.

[0035] When the square tube 4 enters the temporary storage area, the pusher 3717 is in the reset state and extends out of the upper surface of the pusher table 34 and is located on the side of the square tube 4 away from the palletizing station. The air pump 37 drives the telescopic rod 371 to extend along the conveying direction of the square tube 4. The telescopic rod 371 drives the bearing table 3712, the tension spring 3713 and the pusher 3717 to move synchronously. During the movement, the pusher 3717 abuts against the end of the square tube 4 and pushes the square tube 4 from the temporary storage area along the upper surface of the pusher table 34 to the palletizing station.

[0036] The base 3714 is connected to the end of the telescopic rod 371 away from the air pump 37 and moves synchronously with the telescopic rod 371. The side of the base 3714 along the pushing direction of the square tube 4 is hinged to the pushing member 3717 through the connecting shaft 3716. During the pushing process, the pushing member 3717 remains upright and abuts against the end of the square tube 4. The base 3714 provides thrust support for the pushing member 3717 along the pushing direction to prevent the pushing member 3717 from deflecting when subjected to force. The adapter groove 3715 is opened on the side of the base 3714 facing the support platform 3712 to accommodate at least a part of the tension spring 3713 and to avoid interference between the tension spring 3713 and the base 3714 when the telescopic rod 371 retracts.

[0037] The air pump 37 is fixed inside the push platform 34 and located at the end of the push platform 34 away from the temporary storage area. One end of the telescopic rod 371 is connected to the output end of the air pump 37, and the other end extends in the direction toward the temporary storage area. The air pump 37 drives the telescopic rod 371 to extend or retract in a straight line along its axial direction.

[0038] The leveling module includes a connector 35 mounted on the conveying unit. A reset member 38 is sleeved on the outer side of the connector 35, and the reset member 38 can rotate on the connector 35. The reset member 38 is used to appropriately block the square tube 4, and in conjunction with the conveyor belt 32 to convey the square tube 4, it is used to adjust the position of the square tube 4 on the conveyor belt 32. The number of reset members 38 is as follows: Figure 1 As shown, two are arranged in a mirror image opposite each other. The reset member 38 has a drive groove 381 inside, and a connecting hole 382 extending through it. The connecting hole 382 is used to fit the plug rod 35, ensuring that the reset member 38 can rotate on the plug rod 35.

[0039] like Figure 2 and Figure 10As shown, a traction member 39 connects the reset member 38 and the transmission rod 3711. One end of the traction member 39 is connected to a snap-fit ​​member 391, which is located in the drive groove 381. This design allows the snap-fit ​​member 391 to move adaptably within the drive groove 381. The other end of the traction member 39 is provided with a sleeve 392, which is fitted onto the portion of the transmission rod 3711 that protrudes from the slide groove 36. When the air pump 37 drives the telescopic rod 371 to move, the transmission rod 3711 moves synchronously, and the traction member 39 fitted onto the transmission rod 3711 pulls on the reset member 38. This allows the reset member 38 to rotate on the plug rod 35 through the connecting hole 382, ​​changing the reset member 38 from being perpendicular to the conveyor belt 32 to being parallel to the conveyor belt 32, thus releasing the square tube 4 that was blocked by the reset member 38.

[0040] Furthermore, the speed of transporting the square tube 4 is directly proportional to the distance between the reset member 38 and the pusher 3717. The delivery of the pusher 3717 and the rotation of the reset member 38 are carried out simultaneously, which means that the operation efficiency of pushing the next square tube 4 onto the next square tube 4 is improved.

[0041] The reset member 38 is normally kept in the blocking position, with its main body set at an angle relative to the conveying direction of the conveyor belt 32, blocking the travel path of the square tube 4; when the traction member 39 pulls the reset member 38, the reset member 38 rotates around the plug rod 35, and its main body changes from the blocking posture set at an angle relative to the conveying direction to the avoidance posture parallel to the conveying direction or parallel to the conveyor belt 32.

[0042] The drive groove 381 is an elongated slot extending along the body of the reset member 38. The snap-fit ​​member 391 is accommodated in the drive groove 381 and slides along the length of the drive groove 381. When the traction member 39 is pulled by the transmission rod 3711, the snap-fit ​​member 391 slides in the drive groove 381 from the end near the insertion rod 35 to the end away from the insertion rod 35. The sliding of the snap-fit ​​member 391 forces the reset member 38 to rotate around the insertion rod 35.

[0043] One end of the traction member 39 is connected to the drive groove 381 of the reset member 38 via the snap-fit ​​member 391, and the other end is sleeved to the transmission rod 3711 via the sleeve 392. The transmission rod 3711 is located in the slide groove 36 and moves back and forth along the extension direction of the slide groove 36. When the transmission rod 3711 moves away from the air pump 37 along the telescopic rod 371, the traction member 39 pulls the snap-fit ​​member 391. The snap-fit ​​member 391 slides in the drive groove 381 and applies a deflection torque to the reset member 38, causing the reset member 38 to rotate around the plug rod 35. When the transmission rod 3711 retracts with the telescopic rod 371 in the direction closer to the air pump 37, the pulling force of the traction member 39 is released, and the reset member 38 rotates in the opposite direction under its own weight or the action of a separately provided reset elastic element, returning to the blocking posture.

[0044] When the resetting member 38 is in the blocking posture, its main body extends into the conveying path above the conveyor belt 32. When the square tube 4 travels along the conveyor belt 32 to the position of the resetting member 38, the side wall or end of the square tube 4 abuts against the resetting member 38, and the travel of the square tube 4 is temporarily stopped. Under the continuous drive of the conveyor belt 32, the square tube 4 remains against the resetting member 38. The relative movement between the conveyor belt 32 and the square tube 4 is used to adjust the posture of the square tube 4 until the side wall of the square tube 4 is parallel to the conveying direction of the conveyor belt 32 or the posture of the square tube 4 on the conveyor belt 32 is corrected. After the resetting member 38 rotates to the avoidance posture, its main body exits the conveying path, the square tube 4 is released from the obstruction and continues to move forward along the conveyor belt 32.

[0045] The conveying speed of the square tube 4 on the conveyor belt 32 is directly proportional to the distance between the reset member 38 and the pusher 3717 along the conveying direction. That is, the faster the conveying speed, the larger the distance between the reset member 38 and the pusher 3717, so as to match the time required for the square tube 4 to travel to the position of the pusher 3717 after being released from the reset member 38. This ensures that the moment when the previous square tube 4 is pushed out of the temporary storage area by the pusher 3717 is coordinated with the moment when the next square tube 4 is released into the temporary storage area by the reset member 38. This distance setting makes the release rhythm of the reset member 38 and the pushing rhythm of the pusher 3717 adapt to each other, ensuring that the square tubes 4 enter the temporary storage area one by one without stacking or gaps. This proportional relationship is achieved by adjusting the installation position of the reset member 38 on the plug-in rod 35 or adjusting the fixed position of the plug-in rod 35 on the conveying unit.

[0046] like Figure 3 , Figure 4 and Figure 5 As shown, the feeding mechanism 2 includes a housing 21, which is located on the same plane as the conveying mechanism 1. A reset actuator 22 is provided on the housing 21 to receive the impact force generated when the conveying mechanism 1 transports the square tube 4. Since the conveying mechanism 1 only transports the square tube 4 via rollers 11 and does not have a deceleration device, the high-speed moving square tube 4 will cause a strong impact on the housing 21. The reset actuator 22 includes a base plate 221 connected to the housing 21. Electrical components are provided on the side of the base plate 221 closest to the housing 21. An impact button 226 and a support spring 224 are provided on the base plate 221. The impact button 226 is used to connect the circuit inside the housing 21, and the support spring 224 is used to mitigate the impact of the conveying mechanism 1. The support spring 224 is located around the impact button 226.

[0047] The other end of the support spring 224 is provided with an impact plate 223. There are four support springs 224, which support the four corners of the impact plate 223. When the impact plate 223 is impacted by the conveying mechanism 1, the springs ensure smooth movement of the impact plate 223, allow it to return to its original shape, and reduce impact damage. An activation button 225 is provided on the side of the impact plate 223 near the base plate 221. The activation button 225 is made of soft rubber to prevent excessive pressure damage to the impact button 226 when it comes into contact with the impact button 226 when the impact force from the conveying mechanism 1 is too strong, thus shortening the service life of the impact button 226. The positions of the activation button 225 and the impact button 226 correspond to each other. This corresponding arrangement ensures that the activation button 225 can trigger the impact button 226.

[0048] A limiting plate 222 is also provided on the outer side of the base plate 221. The limiting plate 222 has a limiting groove 2221 on the side facing the impact plate 223. A limiting block 2231 is provided at the end of the impact plate 223 near the limiting plate 222. The limiting block 2231 is engaged in the limiting groove 2221. The mutual engagement of the limiting block 2231 and the limiting groove 2221 is used to limit the impact plate 223 and to determine the movement trajectory of the impact plate 223.

[0049] The housing 21 is also provided with a receiving groove 211, and a drive motor 23 is installed inside the receiving groove 211. The housing 21 is also provided with a rotating shaft 25, the output end of the rotating shaft 25 and the drive motor 23 are located in the same direction, and a synchronous belt 24 is sleeved on the drive motor 23 and the rotating shaft 25.

[0050] A feeding wheel 26 is connected to the rotating shaft 25. The feeding wheel 26 includes a rotating rod 261 connected to the rotating shaft 25. A toggle plate 262 is sleeved on the rotating rod 261. The toggle plate 262 is provided with a clamping plate 263 for clamping the opposite tube 4.

[0051] The end of the feeding wheel 26 away from the rotating shaft 25 is provided with a support seat 27, which is used to stabilize the support of the feeding wheel 26.

[0052] The output end of the conveying mechanism 1 is set towards the impact plate 223. The rollers 11 are arranged sequentially along the conveying direction of the square tube 4 and rotate continuously. The square tube 4 is supported on the rollers 11 and gains forward speed with the rotation of the rollers 11. When the square tube 4 travels along the rollers 11 to the output end of the conveying mechanism 1, the square tube 4 is released from the support of the rollers 11 and directly impacts the side surface of the impact plate 223 facing the conveying mechanism 1 with its own speed obtained on the conveying mechanism 1.

[0053] The base plate 221 is fixed to the side of the housing 21 facing the conveying mechanism 1. The impact plate 223 is disposed on the side of the base plate 221 away from the housing 21 and opposite to the base plate 221. The side of the impact plate 223 away from the base plate 221 faces the output end of the conveying mechanism 1 and is used to receive the impact of the square tube 4.

[0054] When the impact plate 223 is struck by the square tube 4, it moves towards the base plate 221 under the guidance of the support spring 224. The trigger button 225 fixed on the impact plate 223 moves synchronously with the impact plate 223 and comes into contact with the impact button 226, triggering the circuit inside the housing 21 to be connected, and the drive motor 23 is powered on and started. After the drive motor 23 starts, it drives the feeding wheel 26 to complete a flipping action, flipping the square tube 4 that struck the impact plate 223 to the stacking mechanism 3. After the feeding wheel 26 completes the flipping action, the drive motor 23 is automatically powered off and stopped. After the impact force disappears, the impact plate 223 moves away from the base plate 221 under the elastic restoring force of the support spring 224. The trigger button 225 separates from the impact button 226, the circuit is disconnected, and the impact plate 223 returns to the initial position to be struck, waiting for the next square tube 4 to strike.

[0055] The limiting plate 222 is fixed to the outside of the base plate 221 and extends toward the impact plate 223. The limiting groove 2221 is opened on the side of the limiting plate 222 toward the impact plate 223 along the moving direction of the impact plate 223. The limiting block 2231 protrudes from the end of the impact plate 223 near the limiting plate 222 and is inserted into the limiting groove 2221. The limiting block 2231 can only slide back and forth in the extending direction of the limiting groove 2221, thereby constraining the moving trajectory of the impact plate 223 and preventing the impact plate 223 from shifting or tilting when impacted.

[0056] The output shaft of the drive motor 23 is arranged parallel to the rotating shaft 25, and their axes are located in the same horizontal plane. When the drive motor 23 is running, it transmits power to the rotating shaft 25 through the synchronous belt 24, so that the rotating shaft 25 and the output shaft of the drive motor 23 rotate synchronously.

[0057] The receiving groove 211 is opened inside the side wall of the housing 21. The drive motor 23 is fixedly installed in the receiving groove 211. The rotating shaft 25 is located at the upper end of the housing 21 and is higher than the receiving groove 211. The synchronous belt 24 passes through the side wall of the housing 21 and connects the output shaft of the drive motor 23 in the receiving groove 211 to the rotating shaft 25 at the upper end of the housing 21.

[0058] The feeding wheel 26 is a wheel-shaped structure arranged axially along the rotating shaft 25. One end of the rotating rod 261 is connected to the rotating shaft 25, and the other end extends outward along the radial direction of the rotating shaft 25. The actuating plate 262 is fixedly sleeved in the middle of the rotating rod 261. The clamping plate 263 is set on the edge of the actuating plate 262 facing the rotation direction of the rotating shaft 25. The clamping plate 263 and the actuating plate 262 form a clamping space for accommodating the end of the square tube 4. When the feeding wheel 26 rotates around the rotating shaft 25 under the drive of the drive motor 23, the actuating plate 262 rotates synchronously with the rotating rod 261. During the rotation, the clamping plate 263 picks up the square tube 4 from the output end of the feeding mechanism 1. The end of the square tube 4 is clamped into the clamping space between the clamping plate 263 and the actuating plate 262. As the actuating plate 262 continues to rotate, it is flipped and transferred to the stacking mechanism 3.

[0059] The support base 27 is located on the side of the housing 21 away from the drive motor 23 and is fixed relative to the housing 21. The support base 27 and the housing 21 form a space for the loading wheel 26 to be arranged. The end of the rotating shaft 25 away from the drive motor 23 passes through the loading wheel 26 and is rotatably connected to the support base 27. The rotating shaft 25 obtains rotational support at the end away from the drive motor 23 through the support base 27, so that the loading wheel 26 is supported at both ends of the rotating shaft 25.

[0060] like Figure 11 As shown, the housing 21 contains a circuit, which is connected to the pressed button 226 and the drive motor 23.

[0061] The circuit includes a power-on module and a trigger module.

[0062] The power-on module ensures that the circuit is always powered after the feeding mechanism 2 is started. The pressed button 226 is normally open, and the circuit is open under normal conditions; the circuit is powered on after the pressed button is closed.

[0063] The power-on module is used to maintain the power supply circuit of the drive motor 23 continuously conducting after the drive motor 23 is initially powered on and started, so that the drive motor 23 can continue to operate after the button 226 is reset and disconnected; this continuous conducting state is achieved by the auxiliary power supply circuit established by the self-locking module, rather than by the button 226 itself.

[0064] The trigger module is used to power up the circuit and start the motor 23 to rotate when the pressed button 226 is closed. The pressed button 226 is a reset button that can automatically reset to the normally open position.

[0065] The impact button 226 is a normally open reset button, which remains open under normal conditions. When the trigger button 225 is pushed by an impact force and presses the impact button 226, the impact button 226 closes momentarily and the circuit is connected. When the impact force disappears, the impact button 226 automatically resets to the normally open state.

[0066] The circuit also includes a self-locking module and a protection module.

[0067] The self-locking module is used so that when the pressed button 226 is reset, the circuit switches to the auxiliary contact, drives the motor 23 to rotate continuously until it rotates to a preset angle, triggers the limit switch, cuts off the power supply circuit of the circuit, and drives the motor 23 to stop rotating and lock to a fixed angle.

[0068] The drive motor 23 is a brake motor or stepper motor with a self-locking function. When the power supply circuit of the drive motor 23 is cut off by the limit switch, the internal brake of the drive motor 23 is activated to lock the rotor at the current angle position, so that the feeding wheel 26 maintains the posture after the flip is completed, and prevents the feeding wheel 26 from rotating under the action of gravity.

[0069] The auxiliary contact in the self-locking module is the normally open auxiliary contact of the start contactor of the drive motor 23. This auxiliary contact is connected in parallel with the pressed button 226. When the pressed button 226 is pressed and the drive motor 23 is energized and started, the auxiliary contact closes synchronously, providing a continuous current path to the coil of the drive motor 23 after the pressed button 226 is reset and opened.

[0070] The protection module is used to protect the circuit. When the limit switch fails to be triggered at the preset position, the auxiliary limit switch is triggered to forcibly disconnect the power supply circuit of the circuit, causing the drive motor 23 to brake in an emergency.

[0071] The protection module also includes an auxiliary limit switch, which is located on the rotation path of the feeding wheel 26 and after the limit switch. Its normally closed contact is connected in series in the power supply circuit of the drive motor 23. When the limit switch fails to cut off the power supply circuit at the preset angle due to a malfunction, the feeding wheel 26 continues to rotate to the position of the auxiliary limit switch. The normally closed contact of the auxiliary limit switch is forcibly opened, unconditionally cutting off the power supply circuit of the drive motor 23, and the drive motor 23 is stopped by emergency braking.

[0072] The limit switch is set on the rotation path of the feeding wheel 26 or at the corresponding circumferential position of the rotating shaft 25. Its trigger position corresponds to the preset angle of rotation required for the feeding wheel 26 to complete the flipping of the square tube 4. When the feeding wheel 26 rotates to the preset angle with the rotating shaft 25, the trigger protrusion fixed on the rotating shaft 25 or the feeding wheel 26 presses the contact of the limit switch, causing the normally closed contact of the limit switch to open.

[0073] The protection module is also used to monitor the circuit status and protect the circuit when an abnormality occurs. The protection module also includes an overcurrent protection element, which is connected in series in the circuit to monitor the circuit's operating current in real time; when the circuit experiences overload, short circuit, or abnormally large current, the overcurrent protection element automatically cuts off the circuit, causing the drive motor 23 to stop.

[0074] When the metal square tube transport and palletizing device is in use, the square tube 4 is supported on the roller 11 of the conveying mechanism 1. The roller 11 rotates continuously and drives the square tube 4 to move along the conveying direction. The square tube 4 obtains a corresponding moving speed as the roller 11 rotates. When the square tube 4 moves along the roller 11 to the output end of the conveying mechanism 1, it breaks away from the support of the roller 11 and directly impacts the impact plate 223 of the loading mechanism 2 with its own initial speed. After being impacted, the impact plate 223 moves towards the bottom plate 221 under the guidance of the support spring 224. The trigger button 225 fixed on the impact plate 223 moves synchronously with the impact plate 223 and comes into contact with the impact button 226, triggering the circuit inside the housing 21 to be connected, and the drive motor 23 is energized and started. After the drive motor 23 starts, the power is transmitted to the rotating shaft 25 through the synchronous belt 24, and the rotating shaft 25 drives the... The feeding wheel 26 rotates around the rotating shaft 25, and the actuating plate 262 rotates synchronously with the rotating rod 261. During the rotation, the clamping plate 263 lifts the square tube 4 from the output end of the feeding mechanism 1. The end of the square tube 4 is inserted into the clamping space between the clamping plate 263 and the actuating plate 262. As the actuating plate 262 continues to rotate, it is flipped and transferred to the conveyor belt 32 of the stacking mechanism 3. After the impact force disappears, the impact plate 223 moves away from the bottom plate 221 under the elastic restoring force of the support spring 224. The trigger button 225 separates from the impact button 226, the circuit is disconnected, and the impact plate 223 returns to the initial position to be impacted, waiting for the impact of the next square tube 4. After the feeding wheel 26 completes one flip, its own inertia or a separate braking device stops it in a fixed position. The above process is repeated to realize the continuous feeding of square tubes 4 one by one.

[0075] When the square tube 4 is flipped and delivered to the conveyor belt 32 of the conveying unit by the feeding mechanism 2, the conveyor belt 32 runs along the length of the outer shell 31 under the drive of the transmission wheel 33. The square tube 4 sits on the upper surface of the two conveyor belts 32 with its two ends respectively, and moves synchronously with the conveyor belts 32. During the movement of the square tube 4, if its posture is deviated from the conveying direction of the conveyor belt 32, the side wall or end of the square tube 4 abuts against the reset part 38 of the leveling module, and the movement of the square tube 4 is temporarily stopped. At the same time, the conveyor belt 32 continues to run, and the posture of the square tube 4 is adjusted by the relative movement between the conveyor belt 32 and the square tube 4. The sidewall of the square tube 4 is parallel to the conveying direction of the conveyor belt 32. Subsequently, the air pump 37 of the pushing unit drives the telescopic rod 371 to extend along the conveying direction of the square tube 4. The transmission rod 3711 moves synchronously with the telescopic rod 371. The traction member 39 moves with the transmission rod 3711 through the sleeve 392 and pulls the locking member 391. The locking member 391 slides in the drive groove 381 and applies a deflection torque to the reset member 38, causing the reset member 38 to rotate around the insertion rod 35. The reset member 38 switches from the blocking posture to the avoidance posture, releasing the blocked square tube 4. After the square tube 4 is released from the obstruction, it continues to travel along the conveyor belt 32 to... At the end of conveyor belt 32, the tube detaches from conveyor belt 32 due to its inertia and enters the temporary storage area of ​​push platform 34. During the process of square tube 4 entering the temporary storage area, the end of square tube 4 abuts against the part of push member 3717 that protrudes from push platform 34. Push member 3717 rotates around connecting shaft 3716 under the push of square tube 4 and retracts into push platform 34 to avoid the travel path of square tube 4. Square tube 4 can then enter the temporary storage area along the surface of push platform 34. After square tube 4 passes, push member 3717 returns to its original state of protruding from the upper surface of push platform 34 under the pulling action of tension spring 3713. Telescopic rod 371 continues to extend. The pusher 3717 abuts against the end of the square tube 4 in the temporary storage area, pushing the square tube 4 from the temporary storage area along the upper surface of the pusher table 34 to the stacking station; after the telescopic rod 371 extends to its limit position, the air pump 37 drives the telescopic rod 371 to retract in the opposite direction, and the pusher 3717 retracts with the telescopic rod 371. At the same time, the tension of the traction member 39 is released, and the reset member 38 rotates in the opposite direction under its own weight or the action of a separately provided reset elastic element, returning to the blocking posture, blocking and leveling the next square tube 4; the square tubes 4 enter the temporary storage area one by one and are pushed to the stacking station, stacked one by one, completing the stacking operation of the square tubes 4.

[0076] The conveying speed of the square tube 4 on the conveyor belt 32 is proportional to the distance from the reset member 38 to the pusher 3717 along the conveying direction, so that the release rhythm of the reset member 38 is adapted to the pushing rhythm of the pusher 3717, ensuring that the square tubes 4 enter the temporary storage area one by one without stacking or gaps. At the same time, the pushing action of the pusher 3717 and the rotational release action of the reset member 38 are synchronized. That is, while the pusher 3717 pushes the current square tube 4 out of the temporary storage area, the reset member 38 rotates and releases the next square tube 4, realizing continuous feeding and stacking of the square tubes 4.

[0077] In addition, the circuit of the drive motor 23 is equipped with a self-locking module. When the reset button 226 is disconnected, the auxiliary contact of the self-locking module maintains the power supply circuit of the drive motor 23 continuously conducting, so that the drive motor 23 continues to run until the feeding wheel 26 rotates to the preset angle. At this time, the limit switch is triggered, cutting off the power supply circuit of the drive motor 23, and the drive motor 23 stops rotating and locks at that angle. If the limit switch fails to cut off the power supply circuit at the preset angle for any reason, the auxiliary limit switch is forcibly triggered when the feeding wheel 26 continues to rotate to the limit position, unconditionally cutting off the power supply circuit of the drive motor 23 to achieve emergency braking. The circuit is also equipped with an overcurrent protection element. When the circuit is overloaded, short-circuited or abnormally large current occurs, the overcurrent protection element automatically cuts off the circuit to ensure the safe operation of the equipment.

[0078] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A metal square tube transport and stacking device, characterized in that, include: Material conveying mechanism (1), which is located on a plane and is used to transport the square tube (4); The palletizing mechanism (3) is located on the same plane as the material conveying mechanism (1), and is used to receive the square tube (4) transported by the material conveying mechanism (1) and to palletize the square tube (4). The feeding mechanism (2) is located at the connection between the conveying mechanism (1) and the stacking mechanism (3), and is used to transfer the square tube (4) on the conveying mechanism (1) to the stacking mechanism (3).

2. The metal square tube transport and palletizing device according to claim 1, characterized in that: The palletizing mechanism (3) includes a conveying unit and a pushing unit; The pushing unit is located on one side of the conveying unit. The conveying unit is used to convey the square tube (4) to the pushing unit, and the pushing unit is used to stack the square tube (4).

3. A metal square tube transport and palletizing device according to claim 2, characterized in that: The conveying unit includes a housing (31), and the inner side of the housing (31) is provided with a drive wheel (33). There are four drive wheels (33), and all the drive wheels (33) are arranged in a mirror image. The outer side of the housing (31) is connected to a motor for driving the transmission wheel (33) to rotate; A conveyor belt (32) is sleeved on the outside of the drive wheel (33), and the conveyor belt (32) is used to transport the square tube (4) by being driven by the drive wheel (33).

4. A metal square tube transport and palletizing device according to claim 2, characterized in that: The pushing unit includes a leveling module and a driving module, both of which are mounted on the conveying unit and connected to each other. The inner side of the conveying unit is provided with a slide groove (36), which is used to adapt to the leveling module and the drive module for connection and movement.

5. A metal square tube transport and palletizing device according to claim 4, characterized in that: The drive module includes a pusher (34) provided on the conveying unit, and a sliding groove (341) is provided on one side of the pusher (34). The drive module also includes an air pump (37) located inside the push platform (34). The output end of the air pump (37) is connected to a telescopic rod (371). A transmission rod (3711) is provided on the outside of the telescopic rod (371). The transmission rod (3711) is located in the chute (36) and extends outward to the outside of the conveying unit and is connected to the leveling module. The telescopic rod (371) has a support platform (3712) at one end, and the support platform (3712) is connected to one end of the tension spring (3713). The other end of the tension spring (3713) has a pusher (3717), which is located in the sliding groove (341) and protrudes from the sliding groove (341). The pusher (3717) is driven by the air pump (37) to push the square tube (4).

6. A metal square tube transport and palletizing device according to claim 5, characterized in that: The telescopic rod (371) has a base (3714) at the end away from the air pump (37). The base (3714) has an adapter groove (3715) for accommodating the tension spring (3713). The base (3714) has a connecting shaft (3716) on the side that moves along the square tube (4). The connecting shaft (3716) is connected to the pusher (3717). The connecting shaft (3716) is located inside the push platform (34).

7. A metal square tube transport and palletizing device according to claim 5, characterized in that: The leveling module includes a plug rod (35) disposed on the conveying unit. A reset member (38) is sleeved on the outside of the plug rod (35). A drive groove (381) is opened in the reset member (38). A connection hole (382) is also opened through the reset member (38). A traction member (39) is connected between the reset member (38) and the transmission rod (3711). One end of the traction member (39) is connected to a snap-fit ​​member (391), which is located in the drive groove (381). The other end of the traction member (39) is provided with a sleeve (392), which is sleeved on the part of the transmission rod (3711) that protrudes from the slide groove (36).

8. A metal square tube transport and palletizing device according to claim 1, characterized in that: The feeding mechanism (2) includes a housing (21), which is located on the same plane as the feeding mechanism (1). The housing (21) is provided with a reset actuator (22), which includes a base plate (221) connected to the housing (21). The base plate (221) is provided with a hit button (226) and a support spring (224), which is located around the hit button (226). The other end of the support spring (224) is provided with a strike plate (223), and the strike plate (223) is provided with an activation button (225) on the side near the base plate (221). The activation button (225) and the strike button (226) are positioned opposite each other. The outer side of the base plate (221) is also provided with a limiting plate (222), and a limiting groove (2221) is opened on the side of the limiting plate (223) facing the impact plate (223). A limiting block (2231) is provided at one end of the impact plate (223) near the limiting plate (222), and the limiting block (2231) is engaged in the limiting groove (2221). The housing (21) is also provided with a receiving groove (211), and a drive motor (23) is provided inside the receiving groove (211). The housing (21) is also provided with a rotating shaft (25), the output end of the rotating shaft (25) and the drive motor (23) are located in the same direction, and a synchronous belt (24) is sleeved on the drive motor (23) and the rotating shaft (25). The rotating shaft (25) is connected to a feeding wheel (26), the feeding wheel (26) includes a rotating rod (261) connected to the rotating shaft (25), a deflecting plate (262) is sleeved on the rotating rod (261), and a deflecting plate (263) for locking the square tube (4) is provided on the deflecting plate (262). The feeding wheel (26) is provided with a support seat (27) at one end away from the rotating shaft (25), which is used to stabilize the support of the feeding wheel (26).

9. A metal square tube transport and palletizing device according to claim 8, characterized in that: The housing (21) is provided with a circuit, which is connected to the pressed button (226) and the drive motor (23); The circuit includes a power-on module and a trigger module; The power-on module is used to ensure that the circuit is always powered on after the feeding mechanism (2) is started, and is only disconnected by the hit button (226), which is normally open; The trigger module is used to power up the circuit and drive the motor (23) to rotate when the pressed button (226) is closed. The pressed button (226) is a reset button that can automatically reset to the normally open position.

10. A metal square tube transport and palletizing device according to claim 9, characterized in that: The circuit also includes a self-locking module and a protection module; The self-locking module is used so that when the pressed button (226) is reset, the circuit switches to the auxiliary contact, the drive motor (23) continues to rotate until it rotates to a preset angle, triggers the limit switch, cuts off the power supply circuit of the circuit, and the drive motor (23) stops rotating and locks to a fixed angle; The protection module is used to protect the circuit. When the limit switch fails to be triggered at the preset position, the auxiliary limit switch is triggered to forcibly disconnect the power supply circuit of the circuit, so that the drive motor (23) is braked in an emergency. The protection module is also used to monitor the circuit status and protect the circuit when an abnormality occurs.

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