A mine concrete mixing and transporting vehicle tank body steel plate bending forming device

Abstract

The application discloses a mine concrete mixing and transporting vehicle tank body steel plate bending and forming device, which comprises a rack, two horizontal parallel arranged lower rollers driven by a driving device, and an upper roller located right above the two lower rollers and capable of being adjusted in the vertical direction, further comprises a side support mechanism, an anti-deviation triggering mechanism and an anti-deviation executing mechanism, the side support mechanism comprises a support frame, a support roller shaft and a driving part, the anti-deviation triggering mechanism comprises a sliding rod, a touch wheel and a lever, and the anti-deviation executing mechanism comprises a top rod, a lateral shift fork and a first reset elastic part, wherein when the rolled steel plate deviates laterally and presses the touch wheel, the top rod is pushed by the lever to exert a reverse correction force on the plate edge by the lateral shift fork. The steel plate bending and forming device can effectively inhibit the taper and spiral deviation of the thick plate under the huge rolling force through the direct force feedback closed loop composed of the anti-deviation triggering mechanism and the anti-deviation executing mechanism, and ensures the straightness and roundness of the cylinder bus.

Description

Technical Field

[0001] This invention relates to the field of steel plate bending technology, and more specifically, to a device for bending and forming steel plates for the tank body of a mining concrete mixer truck. Background Technology

[0002] When processing the tank body of a concrete mixer truck, the steel plate is usually first precisely cut to size and the edges of the steel plate are ground and cleaned. Then, based on the material, thickness and target rolling diameter of the steel plate, the pressure of the upper roller and the feed speed of the plate rolling machine are calculated. Preliminary parameters are set in the CNC system, the plate rolling machine is started, and the roller shaft is driven to rotate, so that the steel plate moves back and forth between the rollers. When the steel plate is rolled to almost a complete arc (but the opening is not yet closed), its opening is closed and spot welded to form a complete, shorter cylindrical section. Then these cylindrical sections are welded together to finally form a complete, longer tank body.

[0003] For mining concrete mixer trucks, the tank body needs to withstand harsher working conditions, greater loads, and stronger wear. Therefore, thicker and stronger steel plates are used. When using a traditional plate rolling machine to roll such thick-walled high-strength steel plates, the plates are prone to lateral deviation under the huge rolling force, resulting in the straightness of the cylinder generatrix exceeding the tolerance, and producing taper or helical deviations. These geometric defects will further accumulate and amplify during subsequent welding, ultimately seriously affecting the roundness and overall dynamic balance of the tank assembly, which in turn affects the mixing uniformity, running stability, and service life of key components. Therefore, improvements are needed. Summary of the Invention

[0004] The purpose of this invention is to provide a bending and forming device for the steel plate of a mining concrete mixer truck tank, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A steel plate bending and forming device for a mining concrete mixer truck tank includes a frame, two horizontally parallel lower rollers driven by a drive device, and an upper roller located directly above the two lower rollers and adjustable vertically. It also includes:

[0007] The side support mechanism is symmetrically arranged on both sides of the frame and includes a support frame hinged to the side wall of the frame, a support roller shaft rotatably connected to the inner wall of the support frame, and a drive component hinged between the support frame and the frame.

[0008] The anti-deviation triggering mechanism is symmetrically arranged on both sides of the support frame, and includes a slide rod slidably connected to the support frame, a contact wheel fixed to the end of the slide rod, and a lever connected to the slide rod;

[0009] The anti-deviation actuator corresponds one-to-one with the anti-deviation triggering mechanism, and includes a push rod hinged to the free end of the lever, a lateral shift fork fixedly connected to the free end of the push rod, and a first reset elastic element fixed between the lateral shift fork and the support frame. The push rod is slidably connected to the support frame.

[0010] When the rolled steel plate deviates laterally and squeezes the contact wheel, the top rod is pushed by a lever so that the lateral shift fork applies a reverse correction force to the edge of the plate.

[0011] Preferably, the anti-deviation actuator further includes an auxiliary deviation correction component. The auxiliary deviation correction component includes a cylinder fixed on a support frame, a first piston plate fixedly connected to the free end of the slide rod, the first piston plate slidably connected to the cylinder, branch pipes symmetrically connected to the cylinder, a second piston plate slidably connected to the branch pipes, a deviation correction plate slidably connected to the outer wall of the contact wheel, a piston rod fixedly connected between the deviation correction plate and the second piston plate, a second reset elastic element fixedly connected between the deviation correction plate and the support frame, and hydraulic oil filling the cylinder and branch pipes.

[0012] Preferably, the inner diameter of the cylinder is larger than the inner diameter of the branch pipe.

[0013] Preferably, the branch pipe is equipped with a regulating valve.

[0014] Preferably, the working surface of the touch wheel is an arc surface with a concave center, and the arc surface has raised protective edges on both sides.

[0015] Preferably, ball bearings are rotatably connected to the working surfaces of the contact wheel, the side shift fork, and the correction plate that contact the edge of the steel plate.

[0016] Preferably, a first guide roller is rotatably connected to the inner wall of the lateral shift fork, a screw is rotatably connected to the surface of the lateral shift fork, a knob is fixedly connected to the free end of the screw, a support plate is threadedly connected to the outer wall of the screw, the support plate is slidably connected to the lateral shift fork, and a second guide roller is rotatably connected to the support plate, with the first guide roller and the second guide roller being parallel to each other.

[0017] Preferably, the support plate has symmetrical grooves, and a slider is slidably connected in the groove. Both ends of the slider are fixedly connected to the support plate with pre-tension springs, and the second guide roller is rotatably connected between adjacent sliders.

[0018] Preferably, a scale is fixedly connected to the support plate, and a pointer is fixedly connected to the lateral fork.

[0019] Preferably, the ends of the first guide roller and the second guide roller are both provided with flared guide wheels.

[0020] By adopting the aforementioned technical solution, the beneficial effects of the present invention are:

[0021] 1. Through a direct force feedback closed loop consisting of an anti-deviation triggering mechanism and an anti-deviation execution mechanism, when the steel plate deviates and squeezes the contact wheel, the displacement is amplified by a lever and drives the lateral shift fork on the opposite side to act immediately, applying a precise reverse thrust to the edge of the steel plate. The entire correction process is direct, has no delay, and is extremely reliable. This automatic correction mechanism can effectively suppress the taper and helical deviations of thick plates under huge rolling forces, ensuring the straightness and roundness of the cylinder generatrix. This lays an excellent geometric accuracy foundation for the subsequent welded tank assembly, thereby directly improving the dynamic balance performance and service life of the tank. At the same time, it reduces the traditional manual tapping correction process, improving the level of production automation and efficiency.

[0022] 2. By introducing an auxiliary correction component composed of a hydraulic system, working in conjunction with the main mechanical correction system, a unique two-stage correction mechanism is formed. The first-stage main system reacts quickly and provides the initial correction force. The second-stage auxiliary system provides a strong stabilizing force by converting the displacement of the slide bar into a larger hydraulic thrust acting on the correction plate. In addition, the correction plate and the contact wheel are arranged on the same side but can move relative to each other, so that the correction force is separated from the trigger signal. When the deviation continues, the correction plate applies a distributed support and damping force to the edge of the steel plate on the same side under hydraulic drive. Together with the active thrust of the lateral shift fork on the opposite side, it forms a torque to correct the torsion. This spatial torque balance is more effective than unilateral force application in preventing the steel plate from undergoing new torsional deformation during the correction process. The hydraulic damping can be precisely controlled by the regulating valve, so that the auxiliary correction action is smooth and gentle, absorbing the impact. The entire correction process has the dual advantages of rapid response and smooth stability, which is particularly suitable for complex rolling conditions such as mining high-strength wear-resistant steel plates with large rebound and large inertia.

[0023] 3. The guide roller spacing adjustment mechanism with scale and pointer allows operators to quickly and accurately preset the distance according to the thickness and curvature of the steel plate. The arc surface and protective edge design of the contact roller, as well as the ball bearing treatment of each contact point, not only ensure the stability of signal sensing, but also minimize frictional damage to the steel plate surface. This highly integrated and user-friendly design significantly improves the equipment's adaptability to workpieces of different specifications, lowers the skill threshold and labor intensity of operators, and reduces the high maintenance costs caused by complex electro-hydraulic systems, resulting in significant overall economic benefits. Attached Figure Description

[0024] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments of the invention and, together with their description, serve to explain the principles of the invention.

[0025] Figure 1This is a schematic diagram of the steel plate bending and forming device for the tank body of a mining concrete mixer truck in one embodiment.

[0026] Figure 2 This is a schematic diagram of the side support mechanism structure in one embodiment;

[0027] Figure 3 This is a schematic diagram of the anti-bias triggering mechanism in one embodiment;

[0028] Figure 4 This is a partial structural diagram of the steel plate bending and forming device for the tank body of a mining concrete mixer truck in one embodiment.

[0029] Figure 5 This is a schematic diagram of the anti-deviation actuator structure in one embodiment;

[0030] Figure 6 This is a schematic diagram of the anti-deviation triggering mechanism and anti-deviation execution mechanism in one embodiment;

[0031] Figure 7 This is a schematic diagram of the auxiliary correction component structure in one embodiment;

[0032] Figure 8 This is a cross-sectional view of an auxiliary correction component in one embodiment;

[0033] Figure 9 This is a schematic diagram of the lateral shift fork structure in one embodiment;

[0034] Figure 10 for Figure 9 Enlarged schematic diagram of the structure at point A in the diagram;

[0035] Figure 11 This is a schematic diagram of the anti-deviation actuator in one embodiment;

[0036] Figure 12 This is a schematic diagram of the second guide roller structure in one embodiment.

[0037] Figure label:

[0038] 100. Frame; 200. Lower roller; 300. Upper roller; 400. Side support mechanism; 410. Support frame; 420. Support roller shaft; 430. Drive component; 500. Anti-deviation triggering mechanism; 510. Slide rod; 520. Contact wheel; 521. Arc surface; 522. Protective flange; 530. Lever; 540. Ball bearing; 600. Anti-deviation actuator; 601. Slide groove; 602. Slider; 603. Preload spring; 610. Push rod; 620. Side shift fork; 621. First guide roller; 622. Screw; 623. Knob; 624. Support plate; 625. Second guide roller; 626. Scale; 627. Pointer; 628. Guide wheel; 630. First reset elastic element; 640. Auxiliary correction assembly; 641. Cylinder; 642. First piston plate; 643. Branch pipe; 644. Second piston plate; 645. Correction plate; 646. Piston rod; 647. Second reset elastic element; 648. Adjusting valve. Detailed Implementation

[0039] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps set forth in these embodiments do not limit the scope of the invention.

[0040] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.

[0041] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0042] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0043] like Figures 1-12 As shown, a steel plate bending and forming device for a mining concrete mixer truck tank includes a frame 100, two horizontally parallel lower rollers 200 driven by a drive device, and an upper roller 300 located directly above the two lower rollers 200 and adjustable in the vertical direction. The steel plate bending and forming device also includes a side support mechanism 400, an anti-deviation triggering mechanism 500, and an anti-deviation execution mechanism 600.

[0044] Please refer to Figure 1 and Figure 2The side support mechanism 400 is symmetrically arranged on both sides of the frame 100, and the side support mechanism 400 includes a support frame 410 hinged to the side wall of the frame 100, a support roller shaft 420 rotatably connected to the inner wall of the support frame 410, and a drive member 430 hinged between the support frame 410 and the frame 100.

[0045] Please refer to Figure 3 and Figure 4 The anti-deviation triggering mechanism 500 is symmetrically arranged on both sides of the support frame 410, and the anti-deviation triggering mechanism 500 includes a slide rod 510 slidably connected to the support frame 410, a contact wheel 520 fixed to the end of the slide rod 510, and a lever 530 connected to the slide rod 510.

[0046] Please refer to Figure 4 , Figure 5 and Figure 6 The anti-deviation actuator 600 corresponds one-to-one with the anti-deviation triggering mechanism 500. The anti-deviation actuator 600 includes a top rod 610 hinged to the free end of the lever 530, a lateral shift fork 620 fixedly connected to the free end of the top rod 610, and a first reset elastic member 630 fixed between the lateral shift fork 620 and the support frame 410. The top rod 610 is slidably connected to the support frame 410.

[0047] When the rolled steel plate deviates laterally and squeezes the contact wheel 520, the top rod 610 is pushed by the lever 530 so that the lateral shift fork 620 applies a reverse correction force to the edge of the plate.

[0048] The side support mechanism 400 provides a stable and movable installation base for the anti-deviation system. The anti-deviation trigger mechanism 500 senses the deviation of the steel plate through the contact wheel 520 and performs the initial force transmission and direction conversion through the lever 530. The anti-deviation actuator 600 transmits the force to the edge of the steel plate through the top rod 610 and the lateral shift fork 620. The first reset elastic element 630 provides automatic reset force, thus constructing a complete, purely mechanical closed-loop feedback system that can detect the lateral deviation of the steel plate in real time and adaptively and apply the reverse correction force, effectively suppressing the taper or spiral deviation generated during the rolling process of the steel plate, without the need for external power or complex control.

[0049] Please refer to Figure 6 , Figure 7 and Figure 8The anti-deviation actuator 600 also includes an auxiliary deviation correction component 640. The auxiliary deviation correction component 640 includes a cylinder 641 fixed on the support frame 410, a first piston plate 642 fixedly connected to the free end of the slide rod 510, the first piston plate 642 slidably connected inside the cylinder 641, a branch pipe 643 symmetrically connected to the cylinder 641, a second piston plate 644 slidably connected inside the branch pipe 643, a deviation correction plate 645 slidably connected to the outer wall of the contact wheel 520, a piston rod 646 fixedly connected between the deviation correction plate 645 and the second piston plate 644, a second reset elastic element 647 fixedly connected between the deviation correction plate 645 and the support frame 410, and hydraulic oil filling the cylinder 641 and the branch pipe 643.

[0050] Hydraulic oil connects the cylinder 641 and the branch pipe 643, causing the slide rod 510 to move and drive the first piston plate 642 to generate hydraulic pressure, which in turn pushes the second piston plate 644 and the connected correction plate 645 to move. In addition to the core mechanical correction system, a second hydraulic auxiliary correction defense line is added. The force of the correction plate 645 is proportional to the displacement of the contact wheel 520, which can apply a more evenly distributed and larger effective area auxiliary correction force to the edge of the steel plate. It works in conjunction with the lateral shift fork 620 to enhance the stability and effect of correction. The second reset elastic element 647 ensures its reset.

[0051] The inner diameter of the cylinder 641 is larger than the inner diameter of the branch pipe 643. According to Pascal's principle, the smaller cross-section branch pipe 643 will generate greater hydraulic pressure, which enables the correction plate 645 to output a greater correction force while obtaining the same displacement as the first piston plate 642. This amplifies the force and is particularly suitable for working conditions that require a larger lateral force to correct the deviation of thick plates.

[0052] A regulating valve 648 is provided on the branch pipe 643. By controlling the opening of the regulating valve 648, the damping of the hydraulic oil flow in the branch pipe 643 can be controlled. This allows the operator to finely adjust the response speed of the auxiliary correction: a large opening results in a fast response and a large impact; a small opening results in a slow response and a gentle action. This allows the device to adapt to the rolling requirements of steel plates of different materials (such as different yield strengths) and avoid the correction action being too fast and causing impact to the steel plate or too slow and causing correction lag.

[0053] Please refer to Figure 3 The working surface of the contact wheel 520 is a concave arc surface 521 in the middle. The arc surface 521 has raised guard edges 522 on both sides. The arc surface 521 can better fit the arc-shaped cross section of the steel plate edge, increasing the contact area and making the sensing more sensitive and stable. The guard edges 522 can effectively prevent the steel plate edge from coming out of the working area of ​​the contact wheel 520 when it deviates violently, playing a mechanical limiting and safety protection role and ensuring the reliability of the trigger signal.

[0054] Please refer to Figure 4The contact wheel 520, the lateral shift fork 620, and the correction plate 645 are all rotatably connected to the working surfaces that contact the edge of the steel plate. This transforms the sliding friction between the contact wheel 520, the lateral shift fork 620, and the correction plate 645 and the edge of the high-strength steel plate into rolling friction, significantly reducing friction, reducing the resistance of the mechanism's movement, preventing the valuable wear-resistant surface of the steel plate from being scratched due to excessive friction, and making the correction action smoother and the response faster.

[0055] Please refer to Figure 9 A first guide roller 621 is rotatably connected to the inner wall of the side shift fork 620. A screw 622 is rotatably connected to the surface of the side shift fork 620. A knob 623 is fixedly connected to the free end of the screw 622. A support plate 624 is threadedly connected to the outer wall of the screw 622. The support plate 624 is slidably connected to the side shift fork 620. A second guide roller 625 is rotatably connected to the support plate 624. The first guide roller 621 and the second guide roller 625 are parallel to each other.

[0056] Rotating the knob 623 drives the screw 622, which in turn moves the support plate 624 and the second guide roller 625, thereby adjusting the distance between them and the fixed first guide roller 621. This allows the lateral shift fork 620 to precisely adapt to the edge dimensions of steel plates of different thicknesses or at different stages of rolling (curvature changes). Through mechanical adjustment, it ensures that the first guide roller 621 and the second guide roller 625 can stably and reliably hold the edge of the steel plate, providing an optimized force application point for the effective transmission of the correction force and improving the correction accuracy.

[0057] Please refer to Figure 11 and Figure 12 The support plate 624 has symmetrical grooves 601. A slider 602 slides in the groove 601. Both ends of the slider 602 are fixedly connected to the support plate 624 with pre-tension springs 603. The second guide roller 625 is rotatably connected between adjacent sliders 602.

[0058] The preload spring 603 provides radial elastic floating capability for the second guide roller 625, which makes the clamping force between the first guide roller 621 and the second guide roller 625 elastically adjustable. It can automatically compensate for minor unevenness or thickness fluctuations at the edge of the steel plate, achieve adaptive clamping, and avoid jamming, wear, or indentation on the edge of the steel plate that may be caused by rigid clamping.

[0059] Please refer to Figure 10A scale 626 is fixedly connected to the support plate 624, and a pointer 627 is fixedly connected to the side fork 620. This provides an intuitive and precise quantitative indication for adjusting the gap between the first guide roller 621 and the second guide roller 625. The operator can quickly and accurately set the gap according to the preset process parameters (steel plate thickness, target curvature), ensuring the repeatability and standardization of the production process, reducing the reliance on the operator's experience, and improving production efficiency and product consistency.

[0060] The ends of the first guide roller 621 and the second guide roller 625 are both provided with flared guide wheels 628. Before the steel plate enters the clamping area of ​​the first guide roller 621 and the second guide roller 625, the flared guide wheels 628 form a gradually narrowing guide entrance. It can automatically guide the edge of the steel plate to be smoothly and smoothly aligned and guided between the two rollers, effectively preventing the steel plate from hitting the roller end due to misalignment, causing jamming, wear or feeding difficulties, and greatly improving the convenience and reliability of operation.

[0061] The steel plate bending and forming device for the tank body of this mining concrete mixer truck uses an anti-deviation actuator 600 as its core and integrates an auxiliary deviation correction component 640 as a second line of defense. The two work together mechanically and hydraulically to achieve a real-time, adaptive deviation correction effect. The specific synergistic effects are as follows:

[0062] I. First-level correction: Composition and working principle of the anti-deviation actuator 600

[0063] The anti-deviation actuator 600 is the core mechanical part of the deviation correction system. It directly responds to the signal from the anti-deviation trigger mechanism 500 and applies a reverse deviation correction force to the edge of the steel plate. Its components include:

[0064] Push rod 610: Hinged to the free end of lever 530. When lever 530 is triggered, push rod 610 slides along support frame 410 to transmit thrust.

[0065] Lateral shift fork 620: Fixedly connected to the free end of top rod 610, directly in contact with the edge of steel plate, used to apply lateral correction force.

[0066] First reset elastic element 630: connects the lateral shift fork 620 and the support frame 410, and provides an automatic reset function to ensure that the mechanism returns to its initial position after correction.

[0067] The workflow is as follows: When the steel plate deviates laterally, the edge presses the contact wheel 520, triggering the lever 530 to move. The lever 530 amplifies the force on the contact wheel 520, pushing the top rod 610 to move, which in turn drives the lateral shift fork 620 to apply a reverse thrust to the edge of the steel plate. This purely mechanical design responds quickly and can correct minor deviations instantly, preventing the steel plate from developing taper or spiral deviations. The design of the lateral shift fork 620 also includes optimization elements, such as the first guide roller 621 and the second guide roller 625. By adjusting the screw 622 and the knob 623, it can adapt to different steel plate thicknesses, ensuring accurate transmission of the correction force.

[0068] II. Second-stage correction: Composition and working principle of auxiliary correction component 640

[0069] The auxiliary correction component 640, as a supplement to the anti-deviation actuator 600, uses a hydraulic system to provide a more uniform and stronger auxiliary correction force, suitable for thick plates or severe deviation conditions. Its components include:

[0070] Cylinder 641: Fixed on support frame 410, filled with hydraulic oil, serving as the core of the hydraulic circuit.

[0071] First piston plate 642: Fixedly connected to the free end of slide rod 510. When slide rod 510 moves, it drives first piston plate 642 to slide inside cylinder 641, generating hydraulic pressure.

[0072] Branch pipe 643: Symmetrically connected to cylinder 641, with an inner diameter smaller than cylinder 641 (based on Pascal's principle to amplify force), and internally slidably connected to the second piston plate 644.

[0073] Correction plate 645: It is connected to the second piston plate 644 via piston rod 646, and directly contacts the edge of the steel plate to apply auxiliary correction force.

[0074] Second reset elastic element 647: ensures that the correction plate 645 resets after action.

[0075] Control valve 648: Installed on branch pipe 643, used to control the flow damping of hydraulic oil and adjust the correction response speed.

[0076] The working process is as follows: When the steel plate deviates and presses against the contact wheel 520, the slide bar 510 moves to drive the first piston plate 642 to compress the hydraulic oil in the cylinder 641. The hydraulic pressure is transmitted through the branch pipe 643, which pushes the second piston plate 644 and the correction plate 645 to move. Since the inner diameter of the branch pipe 643 is small, the force output by the correction plate 645 is amplified, which can apply a more evenly distributed lateral force to the edge of the steel plate. The regulating valve 648 allows the operator to adjust the response speed according to the steel plate material (such as yield strength). The working surface of the correction plate 645 is also equipped with ball bearings 540 to reduce friction and protect the surface of the steel plate.

[0077] III. Analysis of the Synergistic Effect of Two-Level Correction

[0078] The anti-deviation actuator 600 and the auxiliary deviation correction component 640 do not work independently, but rather form a closed-loop feedback system through close collaboration, improving the overall stability, accuracy, and adaptability of deviation correction. This synergistic effect is mainly reflected in the following aspects:

[0079] 1. Temporal complementarity and force superposition

[0080] The first-stage correction mechanism (anti-deviation actuator 600) responds quickly, applying immediate correction force through mechanical lever 530 in the early stages of steel plate deviation to prevent the deviation from expanding.

[0081] The second-stage correction (auxiliary correction component 640) operates with a slight lag in hydraulic system action, but with greater output force and more even distribution. When the deviation is severe, the hydraulic pressure and mechanical force are superimposed to form a stronger composite correction force, effectively suppressing the inertial deviation of the thick steel plate.

[0082] For example, during the steel plate rolling process, slight deviation is corrected by the lateral shift fork 620; if the deviation worsens, the displacement of the contact wheel 520 increases, triggering the hydraulic system, and the correction plate 645 works in concert to avoid overload of a single mechanism.

[0083] 2. Adaptive adjustment and enhanced stability

[0084] The lateral fork 620 in the anti-deviation actuator 600 can adjust the clamping distance through the first guide roller 621 and the second guide roller 625 to adapt to changes in steel plate thickness; the regulating valve 648 of the auxiliary correction component 640 allows for customized hydraulic response, enabling the system to adapt to the rolling requirements of different materials (such as high-strength steel).

[0085] This synergy ensures that the corrective force always matches the degree of deviation: the mechanical part provides basic stability, while the hydraulic part absorbs shock fluctuations and prevents over- or under-correction, thereby improving the straightness of the tank's main line.

[0086] 3. Enhanced protection and reliability

[0087] Both stages of correction use 540 ball bearings to reduce friction and avoid scratching the steel plate surface.

[0088] The hydraulic damping characteristics of the auxiliary correction component 640 (via the regulating valve 648) can buffer mechanical shocks and reduce mechanical wear; at the same time, the design of the guard 522 and guide wheel 628, etc., work together to prevent the steel plate from dislodging and improve system reliability. This collaboration builds a second line of defense outside the core mechanical correction system, significantly reducing the cumulative risk of taper or helix deviation.

[0089] The two-stage correction system of anti-deviation actuator 600 and auxiliary correction component 640 achieves real-time, adaptive, and high-precision steel plate deviation correction through mechanical and hydraulic coordination. The first-stage mechanical correction provides rapid response, while the second-stage hydraulic correction enhances force output and stability. The two complement each other in terms of timing, force superposition, and adjustment. This collaborative design not only solves the lateral deviation problem in the rolling of thick-walled high-strength steel plates, but also improves the roundness and dynamic balance performance of tank production, making it suitable for the high-standard manufacturing requirements of mining concrete mixer truck tanks.

[0090] While specific embodiments of the invention have been described in detail by way of examples, those skilled in the art should understand that the examples are for illustrative purposes only and not intended to limit the scope of the invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A bending and forming device for steel plates of a mining concrete mixer truck tank, comprising a frame (100), two horizontally parallel lower rollers (200) driven by a drive device, and an upper roller (300) located directly above the two lower rollers (200) and adjustable vertically, characterized in that, Also includes: The side support mechanism (400) is symmetrically arranged on both sides of the frame (100) and includes a support frame (410) hinged to the side wall of the frame (100), a support roller (420) rotatably connected to the inner wall of the support frame (410), and a drive member (430) hinged between the support frame (410) and the frame (100). The anti-deviation triggering mechanism (500) is symmetrically arranged on both sides of the support frame (410), and includes a slide rod (510) slidably connected to the support frame (410), a touch wheel (520) fixed to the end of the slide rod (510), and a lever (530) connected to the slide rod (510). The working surface of the touch wheel (520) is an arc surface (521) with a concave center, and the arc surface (521) has raised guard edges (522) on both sides. The anti-deviation actuator (600) corresponds one-to-one with the anti-deviation triggering mechanism (500), and includes a top rod (610) hinged to the free end of the lever (530), a lateral shift fork (620) fixedly connected to the free end of the top rod (610), and a first reset elastic element (630) fixed between the lateral shift fork (620) and the support frame (410). The top rod (610) is slidably connected to the support frame (410). When the rolled steel plate deviates laterally and squeezes the contact wheel (520), the top rod (610) is pushed by the lever (530) so that the lateral fork (620) applies a reverse correction force to the edge of the plate. The anti-deviation actuator (600) further includes an auxiliary deviation correction component (640), which includes a cylinder (641) fixed on a support frame (410), a first piston plate (642) fixedly connected to the free end of the slide rod (510), the first piston plate (642) being slidably connected inside the cylinder (641), a branch pipe (643) symmetrically connected to the cylinder (641), a second piston plate (644) being slidably connected inside the branch pipe (643), a deviation correction plate (645) being slidably connected to the outer wall of the contact wheel (520), a piston rod (646) being fixedly connected between the deviation correction plate (645) and the second piston plate (644), a second reset elastic element (647) being fixedly connected between the deviation correction plate (645) and the support frame (410), and hydraulic oil being filled inside the cylinder (641) and the branch pipe (643).

2. The steel plate bending and forming device for a mining concrete mixer truck tank body according to claim 1, characterized in that, The inner diameter of the cylinder (641) is larger than the inner diameter of the branch pipe (643).

3. The steel plate bending and forming device for the tank body of a mining concrete mixer truck according to claim 2, characterized in that, The branch pipe (643) is equipped with a regulating valve (648).

4. The steel plate bending and forming device for the tank body of a mining concrete mixer truck according to claim 3, characterized in that, The contact wheel (520), the lateral shift fork (620), and the correction plate (645) are all rotatably connected to the working surfaces that contact the edge of the steel plate with the ball bearings (540).

5. A steel plate bending and forming device for a mining concrete mixer truck tank body according to any one of claims 1 to 4, characterized in that, The inner wall of the side shift fork (620) is rotatably connected to a first guide roller (621), and the surface of the side shift fork (620) is rotatably connected to a screw (622). The free end of the screw (622) is fixedly connected to a knob (623), and the outer wall of the screw (622) is threadedly connected to a support plate (624). The support plate (624) is slidably connected to the side shift fork (620), and a second guide roller (625) is rotatably connected to the support plate (624). The first guide roller (621) and the second guide roller (625) are parallel to each other.

6. The steel plate bending and forming device for the tank body of a mining concrete mixer truck according to claim 5, characterized in that, The support plate (624) has symmetrical grooves (601), and a slider (602) is slidably connected in the groove (601). Both ends of the slider (602) are fixedly connected to the support plate (624) with pre-tensioning springs (603). The second guide roller (625) is rotatably connected between adjacent sliders (602).

7. The steel plate bending and forming device for a mining concrete mixer truck tank body according to claim 6, characterized in that, A scale (626) is fixedly connected to the support plate (624), and a pointer (627) is fixedly connected to the side fork (620).

8. The steel plate bending and forming device for a mining concrete mixer truck tank body according to claim 7, characterized in that, The ends of the first guide roller (621) and the second guide roller (625) are both provided with flared guide wheels (628).

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