Two-stage automatic unloading turnover machine

Abstract

The application discloses a two-stage automatic unloading turnover plate turnover machine, which comprises a hydraulic power station, a remote control system, a first-stage driving hydraulic cylinder, a second-stage driving hydraulic cylinder, a turnover forearm, a first-stage turnover frame, a second-stage turnover frame, a turnover support and an unloading system. The two-stage automatic unloading turnover plate turnover machine realizes stepless speed change of turnover through hydraulic driving, adjusts the included angle of the first-stage turnover frame and the second-stage turnover frame through the first-stage driving hydraulic cylinder and the second-stage driving hydraulic cylinder, eliminates turnover impact, realizes 180-degree safe turnover, and realizes automatic unloading by means of opening and closing movement and through the linear rope tensioning movement in the opening and closing process to change the gravity center of the turnover part.

Description

Technical Field

[0001] This invention belongs to the technical field of special flipping equipment in the process of mechanical manufacturing automation, specifically involving a two-stage successive flipping automatic unloading flipping machine. Background Technology

[0002] With the development of my country's industry, the automation of machinery manufacturing has developed rapidly. Thanks to advancements in science and technology, various specialized equipment are widely used in the machinery manufacturing process, solving problems such as high labor intensity, dangerous operation, and slow efficiency. The ability to quickly flip plate-type components is a problem that production lines for tank trucks and specialized equipment need to solve to meet subsequent processing requirements.

[0003] In the field of tank truck and special equipment production line tipping machines, space, efficiency and safety are the three core indicators. Currently, the common tipping machines are double-flipping structures, which are bulky, require a lot of space, cannot achieve automatic unloading, and currently there is no deceleration control for tipping machine docking, resulting in a low safety factor. Summary of the Invention

[0004] In order to overcome the above-mentioned technical problems existing in the existing technical field, the purpose of this invention is to provide a two-stage successive flipping automatic unloading flipping machine.

[0005] The two-stage automatic unloading tilting machine provided by this invention includes a hydraulic power station, a remote control system, a first-stage drive hydraulic cylinder, a second-stage drive hydraulic cylinder, a tilting front arm, a first-stage tilting frame, a second-stage tilting frame, a tilting support, and an unloading system. The hydraulic power station is connected to the first-stage drive hydraulic cylinder and the second-stage drive hydraulic cylinder. The output shaft end of the first-stage drive hydraulic cylinder is connected to the upper end of the tilting front arm, and the output shaft end of the second-stage drive hydraulic cylinder is connected to the lower end of the tilting front arm. The non-output end of the second-stage drive hydraulic cylinder is hinged to the middle of the second-stage tilting frame. The first-stage tilting frame and the second-stage tilting frame are connected to the upper end of the tilting front arm. An unloading device and a rigid limiting guide shaft are provided between the first-stage tilting frame and the second-stage tilting frame.

[0006] The flipping forearm is sickle-shaped, and the first-stage flipping frame, the second-stage flipping frame, and the first-stage drive hydraulic cylinder are connected sequentially from top to bottom to the upper part of the flipping forearm.

[0007] The unloading device, rigid limiting guide shaft, and secondary drive hydraulic cylinder are connected sequentially from front to back in the middle of the secondary tilting frame, and the other end of the unloading device is connected to the end of the primary tilting frame.

[0008] Before flipping, the primary flipping frame and the secondary flipping frame are at a 30-degree angle.

[0009] The first-stage and second-stage flipping frames convert linear motion into flipping motion, achieving a 180° flip.

[0010] The remote control system combines one-button operation with individual operation, and is equipped with one-button emergency stop control to ensure operational safety.

[0011] The primary and secondary drive hydraulic cylinders are equipped with bidirectional hydraulic locks.

[0012] The flipping method is as follows: Start the flipping machine. The flipping machine begins the first-stage flipping. After the first-stage flipping machine has rotated 90 degrees, due to gravity, the steel plate is supported by the first-stage flipping frame to the second-stage flipping frame. An electromagnetic throttle valve is set in the range of 85 to 104 degrees of the first-stage flipping frame. When the first-stage flipping reaches 104 degrees, the limit switch is triggered, and the second-stage flipping begins. The steel plate is slowly flattened. At the same time as flattening, the elastic limit band opens and straightens with the second-stage flipping, pushing the steel plate forward. After it is completely flattened, the center of gravity of the steel plate moves out of the second-stage flipping frame. The limit switch is triggered, the second-stage flipping frame is retracted, and the steel plate is lifted, so that the second-stage flipping frame is separated from the steel plate. After retraction to the correct position, the first-stage flipping frame is retracted until it is level with the platform, which is the starting position, completing one flipping operation.

[0013] The two-stage automatic unloading flipping machine provided by this invention has the following advantages: it achieves stepless speed change of flipping through hydraulic drive; by setting a first-stage drive hydraulic cylinder and a second-stage drive hydraulic step, the angle between the first-stage and second-stage flipping frames is adjusted to eliminate the impact of flipping and achieve safe 180° flipping; by using the opening and closing motion and the tensioning motion of the rope during the opening and closing process, the center of gravity of the flipping part changes, realizing automatic unloading, solving the problem of flipping plates in confined spaces, and improving production efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present invention;

[0015] Figure 2 This is a schematic diagram of the starting position of the two-stage alternating flip-over automatic unloading flipper in this embodiment;

[0016] Figure 3 This is a schematic diagram of the first stage of the two-stage successive flipping automatic unloading flipping machine in this embodiment;

[0017] Figure 4 This is a schematic diagram of the two-stage flipping automatic unloading flipper in this embodiment;

[0018] Figure 5 This is a schematic diagram of the hydraulic power station layout according to an embodiment of the present invention;

[0019] Figure 6 This is a hydraulic schematic diagram of one embodiment of the present invention;

[0020] Figure 7 This is an electrical schematic diagram of one embodiment of the present invention;

[0021] Figure 8 This is a control flowchart of one embodiment of the present invention.

[0022] The image is labeled as follows:

[0023] 1. Primary tilting frame; 2. Secondary tilting frame; 3. Primary drive hydraulic cylinder; 4. Secondary drive hydraulic cylinder; 5. Unloading device; 6. Rigid limit guide shaft; 7. Throttle valve; 8. Electromagnetic throttle valve; 9. Back pressure valve; 10. Two-way hydraulic lock; 11. Motor; 12. Oil tank; 13. Emergency stop button. Detailed Implementation

[0024] The two-stage automatic unloading flipper provided by the present invention will be described in detail below with reference to the accompanying drawings and an embodiment.

[0025] Example

[0026] Reference Figures 1-4 The two-stage automatic unloading tilting machine of this embodiment includes a hydraulic power station, a remote control system, a primary drive hydraulic cylinder 3, a secondary drive hydraulic cylinder 4, a tilting front arm, a primary tilting frame 1, a secondary tilting frame 2, a tilting support, and an unloading system. The hydraulic power station is connected to the primary drive hydraulic cylinder 3 and the secondary drive hydraulic cylinder 4. The output shaft end of the primary drive hydraulic cylinder 3 is connected to the upper end of the tilting front arm, and the output shaft end of the secondary drive hydraulic cylinder 4 is connected to the lower end of the tilting front arm. The non-output end of the secondary drive hydraulic cylinder 4 is hinged to the middle of the secondary tilting frame 2. The primary tilting frame 1 and the secondary tilting frame 2 are connected to the upper end of the tilting front arm. An unloading device 5 and a rigid limiting guide shaft 6 are provided between the primary tilting frame 1 and the secondary tilting frame 2.

[0027] The flipping forearm is sickle-shaped, and the first-stage flipping frame, the second-stage flipping frame, and the first-stage drive hydraulic cylinder are connected sequentially from top to bottom to the upper part of the flipping forearm.

[0028] The unloading device, rigid limiting guide shaft, and secondary drive hydraulic cylinder are connected sequentially from front to back in the middle of the secondary tilting frame, and the other end of the unloading device is connected to the end of the primary tilting frame.

[0029] Before flipping, the primary flipping frame and the secondary flipping frame are at a 30-degree angle.

[0030] The first-stage and second-stage flipping frames convert linear motion into flipping motion, achieving a 180° flip.

[0031] The remote control system combines one-button operation with individual operation, and is equipped with one-button emergency stop control to ensure operational safety.

[0032] The primary and secondary drive hydraulic cylinders are equipped with bidirectional hydraulic locks.

[0033] The specific flipping method is as follows: Before flipping, the first-level flipping frame and the second-level flipping frame are at a 30-degree angle. The first-level flipping frame is embedded under the support beam of the splicing machine, lower than the rolling steel balls, so as not to affect the rotation of the steel plate. After splicing is completed and the slag is cleaned and inspected, the arc-shaped convex end of the steel plate is moved into the flipping machine. It is symmetrical on the left and right. By using the curvature of the workpiece, a combination of rigid positioning and elastic positioning is adopted to ensure that the steel plate is fixed on the left and right. Start the flipping machine. The flipping machine begins the first-stage flipping, with the flipping angle reaching 104 degrees. After the first-stage flipping machine has rotated 90 degrees, the steel plate is supported by gravity from the first-stage flipping frame to the second-stage flipping frame. An electromagnetic throttle valve is set in the range of 85 degrees to 104 degrees of the first-stage flipping frame. When the first-stage flipping reaches 104 degrees, the limit switch is triggered, and the second-stage flipping begins. The steel plate is slowly flattened. At the same time as flattening, the elastic limit band opens and straightens with the second-stage flipping, pushing the steel plate forward. After it is completely flattened, the center of gravity of the steel plate moves out of the second-stage flipping frame, triggering the limit switch. The second-stage flipping frame is then retracted, lifting the steel plate and separating it from the steel plate. After retraction, the first-stage flipping frame is retracted until it is level with the platform, which is the starting position, completing one flipping operation.

[0034] The two-stage automatic unloading flipper uses two pairs of driving hydraulic cylinders and flipping frames to alternately flip the steel plate 180 degrees. By combining rigid and flexible limits, it prevents the workpiece from sliding out from the side during flipping. Through two flipping relays, the two flips are set with a free tilting angle, and gravity is used to flip the plate. The limit belt is added to buffer and reduce the impact between the two flips. The second flip lifts and flattens the plate to prevent the workpiece from flying out during the flipping process and hitting the ground, reducing noise and improving safety. Automatic unloading is achieved through limit belt pushing and flipping sliding unloading.

[0035] The design has a preset free-flip angle of 30 degrees, which can be adjusted according to the impact on site to avoid excessive impact.

[0036] An electromagnetic throttle valve is installed in the first-stage rotation range of 85° to 104° to effectively slow down the rotation speed and prevent impact.

[0037] The drive hydraulic cylinder is equipped with a two-way hydraulic lock to ensure stable start and stop at any position during the flipping process, while preventing the danger of sudden pipe collapse.

[0038] The unloading device is equipped with a flexible limit rope controlled by an automatic retractable rope puller to ensure the designed position. Wear-resistant materials are selected to avoid frequent replacements and increase the service life.

[0039] The unloading device adopts an elastic unloading device, including a flexible limit rope and an automatic retractable rope puller, to ensure that the elastic limit rope is always in the position required by the design and to control the included angle of the left and right elastic limit ropes to meet the design requirements.

[0040] Furthermore, the hydraulic power is provided by an integrated pump station, with the motor 11, oil tank 12, and pump integrated into one unit, saving space and facilitating layout. The drive is achieved using two types of single-stage hydraulic cylinders, with the tilting cylinder having a stroke margin and adjustable angle to better suit different tilting scenarios.

[0041] like Figure 5 As shown: The integrated hydraulic control valve block requires little installation space and is easy to maintain.

[0042] like Figure 6 As shown: Throttling valve 7 is installed in the primary and secondary flipping pipelines to make the flipping speed adjustable, so as to meet the speed control required for the flipping of different parts and ensure smooth flipping.

[0043] An electromagnetic throttle valve 8 is installed at the 85° position of the first-stage flip to control the flip speed. The speed is reduced during the flip process from 85° to 104° to ensure the flipping stability, reduce the impact of the center of gravity change of the flipped part, and prevent rapid fall.

[0044] Back pressure valves 9 are installed in the first-stage and second-stage flip circuits. When the circuit is established, pressure is applied to prevent the first-stage and second-stage flip circuits from suddenly and rapidly falling under the impact of gravity after a sudden change in the center of gravity.

[0045] The tilting cylinder is equipped with a two-way hydraulic lock 10 to ensure that the tilting cylinder is stable and reliable in any position, while preventing it from suddenly falling and causing a safety accident after the pipe bursts.

[0046] like Figure 7 As shown: To ensure the safety of the flipping machine, the controller is equipped with an emergency stop button 13, which can stop the operation at any time to ensure safety.

[0047] like Figure 8 As shown: The control switch start button directly controls the motor's start and stop, saving energy and improving efficiency.

[0048] A one-button operation is set up. The limit switch controls the first and second stage flip positions, and the progressive switch controls the electromagnetic throttle valve to achieve deceleration from 85° to 104°, thus completing the one-button operation.

[0049] Individual operation controls are provided to allow for independent movement of each component, facilitating independent adjustment of the two-stage tilting frame positions. Remote control has also been added for added convenience.

Claims

1. A flipping method for a two-stage alternating flipping automatic unloading flipping machine, characterized in that: The two-stage alternating tilting automatic unloading tilting machine includes a hydraulic power station, a remote control system, a primary drive hydraulic cylinder, a secondary drive hydraulic cylinder, a tilting front arm, a primary tilting frame, a secondary tilting frame, a tilting support, and an unloading system. The hydraulic power station connects to the primary and secondary drive hydraulic cylinders. The output shaft of the primary drive hydraulic cylinder is connected to the upper end of the tilting front arm, and the output shaft of the secondary drive hydraulic cylinder is connected to the lower end of the tilting front arm. The non-output end of the secondary drive hydraulic cylinder is hinged to the middle of the secondary tilting frame. The primary and secondary tilting frames are connected to the upper end of the tilting front arm. An unloading device and a rigid limiting guide shaft are provided between the primary and secondary tilting frames. The flipping method is as follows: Start the flipping machine. The flipping machine starts the first-stage flipping. After the first-stage flipping machine has rotated 90 degrees, due to gravity, the steel plate is supported by the first-stage flipping frame to the second-stage flipping frame. An electromagnetic throttle valve is set in the range of 85 degrees to 104 degrees of the first-stage flipping frame. When the first-stage flipping reaches 104 degrees, the limit switch is triggered, and the second-stage flipping begins. The steel plate is slowly flattened. At the same time as flattening, the elastic limit band opens and straightens with the second-stage flipping, pushing the steel plate forward. After it is completely flattened, the center of gravity of the steel plate moves out of the second-stage flipping frame. The limit switch is triggered, the second-stage flipping frame is retracted, and the steel plate is lifted, so that the second-stage flipping frame is separated from the steel plate. After the retraction is in place, the first-stage flipping frame is retracted until it is level with the platform, which is the starting position, completing one flipping operation.

2. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: The flipping forearm is sickle-shaped, and the first-stage flipping frame, the second-stage flipping frame, and the first-stage drive hydraulic cylinder are connected sequentially from top to bottom to the upper part of the flipping forearm.

3. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: The unloading device, rigid limiting guide shaft, and secondary drive hydraulic cylinder are connected sequentially from front to back in the middle of the secondary tilting frame, and the other end of the unloading device is connected to the end of the primary tilting frame.

4. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: Before flipping, the primary flipping frame and the secondary flipping frame are at a 30-degree angle.

5. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: The first-stage and second-stage flipping frames convert linear motion into flipping motion, achieving a 180° flip.

6. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: The remote control system combines one-button operation with individual operation, and is equipped with one-button emergency stop control to ensure operational safety.

7. The flipping method of the two-stage alternating flipping automatic unloading flipper according to claim 1, characterized in that: The primary and secondary drive hydraulic cylinders are equipped with bidirectional hydraulic locks.

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