A noise reduction buffer mechanism for steel profile conveying and a steel profile conveying device

Abstract

The application belongs to the technical field of conveying equipment, and provides a noise reduction buffer mechanism for conveying steel profiles and a steel profile conveying device. Through the cooperative matching of the variable speed driving assembly, the sensor and the controller, the baffle is in contact with the steel profile during deceleration, effectively reducing the speed difference when the two are in contact, avoiding high-speed rigid collision between the fixed baffle and the moving profile, reducing the contact impact strength from the source, effectively protecting the dimensional accuracy and appearance quality of the profile end, and greatly reducing the impact noise generated by the collision. Meanwhile, after the baffle is in contact with the steel profile, the steel profile is attracted to the baffle by the magnetism of the magnet, effectively avoiding the repeated collision and noise generation during the process of the steel profile and the baffle jointly decelerating to zero, further reducing the noise and improving the workshop production environment.

Description

Technical Field

[0001] This invention belongs to the field of conveying equipment technology, specifically relating to a noise reduction and buffer mechanism for conveying steel profiles and a steel profile conveying device. Background Technology

[0002] In the automated production and transfer process of steel profiles, various steel profiles such as square steel pipes, round steel pipes, I-beams, and angle steel often need to be transferred between workstations. Specifically, the profiles are transported by a first conveying mechanism along a first straight conveying path. Once the profiles reach the end of the path, they are transferred to a second conveying mechanism, whose conveying direction is perpendicular to the first straight conveying path. This allows for the profiles to be redirected, sorted, or processed sequentially. To ensure that the steel profiles can accurately stop at the preset workstation of the second conveying mechanism, a stopping structure needs to be installed at the end of the first straight conveying path, corresponding to the connection position of the second conveying mechanism. This structure limits the end of the steel profiles moving in the first direction, stopping them before they are transported in the second direction.

[0003] In the prior art, a fixed steel baffle is usually used to achieve the above-mentioned stopping function. That is, the steel baffle is fixedly installed on the side where the second conveying mechanism connects with the first conveying mechanism. The motion inertia of the profile is absorbed by the direct rigid collision between the end of the steel profile and the baffle, thereby achieving the stopping and positioning of the profile.

[0004] However, steel profiles have a certain operating speed during the conveying process. When the metal end face collides instantaneously with the fixed baffle, the impact stress is concentrated at the end of the profile, which can easily cause deformation damage such as dents, bends, and edge breakage at the end of the profile. This directly affects the dimensional accuracy and appearance quality of the finished profile, increasing the product defect rate. In addition, the high-speed collision between metal components will generate high-decibel impact noise, which will continuously deteriorate the workshop production environment and does not meet the noise reduction and environmental protection requirements of industrial production. Summary of the Invention

[0005] The present invention provides a noise reduction and buffer mechanism and a steel profile conveying device for conveying steel profiles, aiming to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows: In a first aspect, embodiments of the present invention provide a noise reduction and buffer mechanism for conveying steel profiles, comprising: A baffle is provided at the end of the first linear conveying path, and the side facing the first linear conveying path is a material blocking surface, which is perpendicular to the first linear conveying path. A magnet, connected to the baffle, is used to attract steel profiles; A variable speed drive assembly, with its power output end connected to the baffle, is used to drive the baffle to change speed. A sensor, located upstream of the baffle, is used to detect the position of the steel profile. The controller, electrically connected to the transmission drive assembly and the sensor, is configured to: After receiving the signal emitted when the sensor is triggered, the variable speed drive assembly is controlled to drive the baffle to accelerate and then decelerate along the first straight conveying path, so that the steel profile comes into contact with the baffle during the deceleration process and is attracted to the baffle by the magnet, and then decelerates synchronously to zero; after a first preset time interval, the baffle is controlled to reset.

[0007] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, a groove is provided on the material stop surface; the noise reduction and buffer mechanism for conveying steel profiles further includes: The buffer block is slidably disposed in the slide groove, and one end has the freedom to extend or retract into the slide groove; A buffer bladder is sandwiched between the buffer block and the bottom of the chute, and the buffer bladder is filled with a non-Newtonian fluid; along the conveying path perpendicular to the first straight line, the cross-section of the buffer bladder is smaller than the cross-section of the chute; During the process of the steel profile abutting against the baffle, the steel profile first abuts against the buffer block, and then, under the attraction of the magnet, it squeezes the buffer bladder, causing the buffer block to retract and the steel profile to abut against the baffle.

[0008] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, the magnet is an electromagnet, and the electromagnet is electrically connected to the controller; the controller is configured to: Upon receiving the signal emitted when the sensor is triggered, the electromagnet is energized. After the baffle decelerates to zero, the electromagnet is de-energized.

[0009] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, the buffer block includes a buffer layer and a rigid layer fixedly connected, wherein the rigid layer is made of a ferromagnetic material and fits against the buffer bladder; Specifically, after the steel profile comes into contact with the buffer layer and begins to decelerate synchronously, and before the baffle decelerates to zero, the buffer layer and the rigid layer retract into the groove under the attraction of the electromagnet, so that the end face of the buffer layer is separated from the steel profile.

[0010] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, the variable speed drive assembly includes: Mounting bracket, fixed installation; A rack is slidably disposed within the mounting frame, the rack extends along the first straight conveying path, and one end is fixedly connected to the baffle. The gear is rotatably mounted on the mounting bracket. A variable speed drive element, with its power output end connected to the gear, is used to drive the gear to rotate at different speeds.

[0011] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, there are at least two gears, and the at least two gears are spaced apart on the mounting frame along the first straight conveying path, and the power output end of the speed change drive element is connected to one of the gears. The transmission drive assembly further includes at least two pressure rollers, which are disposed on the side of the rack facing away from the gear and connected to the mounting frame; and at least two of the pressure rollers are spaced apart on the mounting frame along the first straight conveying path.

[0012] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, the variable speed drive assembly further includes at least two limiting guide blocks, the two limiting guide blocks are respectively disposed on both sides of the rack, the limiting guide blocks are fixedly connected to the mounting bracket and slide in cooperation with the rack.

[0013] In conjunction with the first aspect, in one possible implementation of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, a support slide rail is further included, which is fixedly disposed on the lower side of the baffle and slides in cooperation with the baffle.

[0014] Secondly, embodiments of the present invention also provide a steel profile conveying device, including the above-mentioned noise reduction and buffering mechanism for conveying steel profiles, and further including: The first conveying mechanism is used to convey steel profiles along a first straight conveying path; The second conveying mechanism is located at the end of the first conveying mechanism and its conveying direction is perpendicular to the first straight conveying path; The noise reduction and buffer mechanism for conveying steel profiles is located at the end of the first conveying mechanism and upstream of the second conveying mechanism, and is used to stop the steel profiles conveyed by the first conveying mechanism to the second conveying mechanism.

[0015] The beneficial effects of the noise reduction buffer mechanism and steel profile conveying device provided by the present invention are as follows: Compared with the prior art, the noise reduction buffer mechanism and steel profile conveying device provided by the present invention, through the coordinated cooperation of the variable speed drive component, sensor and controller, enable the baffle to contact the steel profile during the deceleration process, effectively reducing the speed difference between the two when they come into contact, avoiding high-speed rigid collision between the fixed baffle and the moving profile, reducing the contact impact intensity from the source, effectively protecting the dimensional accuracy and appearance quality of the profile end, and at the same time significantly reducing the impact noise generated by the collision.

[0016] Meanwhile, after the baffle comes into contact with the steel profile, the steel profile is attracted to the baffle by the magnetism of the magnet, which effectively avoids the repeated noise caused by multiple collisions during the process of the steel profile and the baffle decelerating to zero together, further reducing noise and improving the workshop production environment. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a noise reduction and buffer mechanism for conveying steel profiles provided in an embodiment of the present invention. Figure 1 ; Figure 2 A three-dimensional structural diagram of a noise reduction and buffer mechanism for conveying steel profiles provided in an embodiment of the present invention. Figure 2 ; Figure 3 A side view of the noise reduction and buffer mechanism for conveying steel profiles provided in an embodiment of the present invention; Figure 4 A front view schematic diagram of the baffle and its components in the noise reduction and buffer mechanism for conveying steel profiles provided in an embodiment of the present invention; Figure 5 For along Figure 4 Cross-sectional view of line AA in the middle; Figure 6 for Figure 5 Enlarged view of part A in the image; Explanation of reference numerals in the attached figures: 10. Baffle; 11. Slide groove; 20. Buffer block; 21. Buffer layer; 22. Rigid layer; 30. Buffer bag; 40. Spring; 50. Magnet; 60. Sensor; 71. Mounting bracket; 72. Rack; 73. Gear; 74. Speed-changing drive element; 75. Pressure roller; 76. Limiting guide block; 80. Support slide rail. Detailed Implementation

[0018] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0019] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. The following description of at least one exemplary embodiment is actually illustrative only and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0020] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0021] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all 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. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0022] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0023] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0024] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this invention.

[0025] Please refer to the following: Figures 1 to 6 The noise reduction and buffer mechanism and steel profile conveying device provided by the present invention will now be described.

[0026] The noise reduction and buffer mechanism for conveying steel profiles includes a baffle 10, a magnet 50, a speed-changing drive assembly, a sensor 60, and a controller. The baffle 10 is located at the end of the first linear conveying path, and the side facing the first linear conveying path is a material-blocking surface, which is perpendicular to the first linear conveying path. The magnet 50 is connected to the baffle 10 and is used to attract steel profiles. The power output end of the speed-changing drive assembly is connected to the baffle 10 and is used to drive the baffle 10 to change speed. The sensor 60 is located upstream of the baffle 10 and is used to detect the position of the steel profiles.

[0027] The controller is electrically connected to the transmission drive assembly and sensor 60, and is configured as follows: After receiving the signal emitted when the sensor 60 is triggered, the speed drive assembly is controlled to drive the baffle 10 to accelerate and then decelerate along the first straight conveying path, so that the steel profile comes into contact with the baffle 10 during the deceleration process and is attracted to the baffle 10 by the magnet 50. Then, the profile is decelerated to zero synchronously. After a first preset time interval, the baffle 10 is controlled to reset.

[0028] It should be noted that, in this embodiment, the noise reduction and buffering mechanism is applied to the stopping station when the steel profile is transferred from the first conveying mechanism to the second conveying mechanism. The baffle is typically made of steel plate. The sensor 60 is located upstream of the baffle 10 and is detected by the sensor when the steel profile passes through the detection end of the sensor 60.

[0029] Specifically, the sensor 60 is a photoelectric sensor 60, a proximity switch or a Hall sensor 60, etc., and is fixedly installed upstream of the baffle 10, with a distance of less than 30cm from the baffle 10, so as to ensure the timeliness of the detected position of the steel profile.

[0030] The speed-changing drive assembly is connected to the power end of the baffle 10, and can drive the baffle 10 to perform variable-speed reciprocating motion in a direction perpendicular to the first linear conveying path. The controller is electrically connected to both the speed-changing drive assembly and the sensor 60.

[0031] The working process is as follows: When sensor 60 detects the arrival of the steel profile and is triggered, it sends a signal to the controller. After receiving the signal, the controller controls the variable speed drive assembly to drive the baffle 10 to accelerate and then decelerate along the first straight conveying path. It should be noted that the movement direction of the baffle 10 is the same as the conveying direction of the steel profile. Compared with the existing fixed baffle 10, the baffle 10 in this embodiment is movable, and the steel profile contacts during deceleration, effectively reducing the speed difference at contact and thus avoiding high-speed rigid collision. After contact, magnet 50 generates a continuous attraction to the steel profile, adsorbing the steel profile onto the baffle 10, keeping the two in continuous contact, and then decelerating synchronously to zero under the control of the variable speed drive assembly. After a first preset time when the speed of the baffle 10 is zero (this time is sufficient to complete the second conveying mechanism's receiving or transferring action of the profile), the controller controls the variable speed drive assembly to drive the baffle 10 to move in the opposite direction back to the initial position, completing one work cycle.

[0032] It should be noted that the core design concept of this scheme is as follows: steel profiles are typically heavy. Even if the contact speed difference between the baffle 10 and the profile is small, because both are steel components, their collision recovery coefficient is high. After the collision, the steel profile will be decelerated to a speed lower than that of the baffle 10, causing the contact surfaces to separate. After separation, the baffle 10 continues to decelerate under the control of the speed-changing drive assembly. When the speed drops below that of the profile again, the profile catches up with the baffle 10, resulting in a secondary collision. This process repeats, generating multiple collisions. Each collision produces impact stress and noise at the end of the profile. The cumulative effect of multiple collisions exacerbates the risk of damage to the end of the profile. The stopping process exhibits significant oscillations, resulting in poor positioning accuracy and process stability.

[0033] In this embodiment, by providing a magnet 50 on the baffle 10, a continuous attractive force is generated on the profile upon the initial contact between the baffle 10 and the profile, thus adsorbing the profile onto the baffle 10. This magnetic force remains present throughout the entire stopping process. Even if an elastic force attempts to push the two apart after the collision, the magnetic force maintains their close contact, physically eliminating the conditions for contact separation and thus preventing secondary and subsequent collisions. Under the constraint of the magnetic force, the profile and the baffle 10 maintain continuous contact and decelerate synchronously to zero under the control of the transmission drive assembly. The entire stopping process is a smooth deceleration process with a single continuous contact, and the speed decreases monotonically without speed reversal or contact interruption.

[0034] The beneficial effects of the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention are as follows: Compared with the prior art, the noise reduction and buffer mechanism for conveying steel profiles provided by the present invention, through the coordinated cooperation of the variable speed drive component, the sensor 60 and the controller, enables the baffle 10 to contact the steel profile during deceleration, effectively reducing the speed difference between the two when they come into contact, avoiding high-speed rigid collisions between the existing fixed baffle and the moving profile, and reducing the contact impact intensity from the source.

[0035] Meanwhile, after the baffle 10 comes into contact with the steel profile, the steel profile is attracted to the baffle 10 by the magnetism of the magnet 50. This effectively avoids repeated collisions that cause repeated noise generation during the process of the steel profile and the baffle 10 decelerating to zero together, further reducing noise and improving the workshop production environment.

[0036] like Figure 1 and Figure 2As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, a groove 11 is provided on the material blocking surface; the noise reduction and buffer mechanism for conveying steel profiles also includes a buffer block and a buffer bladder, the buffer block 20 is slidably disposed in the groove 11, and one end has the freedom to extend or retract from the groove 11; the buffer bladder 30 is sandwiched between the buffer block 20 and the bottom of the groove 11, and the buffer bladder 30 is filled with a non-Newtonian fluid; along the vertical first straight conveying path, the cross-section of the buffer bladder 30 is smaller than the cross-section of the groove 11.

[0037] During the contact process between the steel profile and the baffle, the steel profile first contacts the buffer block 20, and then, under the attraction of the magnet 50, it squeezes the buffer bladder 30, causing the buffer block 20 to retract and the steel profile to contact the baffle 10. It should be noted that in this embodiment, a groove 11 is provided on the material blocking surface of the baffle 10 along a direction perpendicular to the first straight conveying path, and the opening of the groove 11 faces the material feeding direction of the profile.

[0038] like Figure 6 As shown, the buffer block 20 is made of materials with cushioning effects such as rubber, silicone, and polyurethane. The buffer block 20 is embedded in the groove 11 and can slide back and forth along the depth direction of the groove 11. The end of the buffer block 20 facing the profile can extend or retract within the groove 11. The buffer bladder 30 is disposed in the space between the buffer block 20 and the bottom of the groove 11. The buffer bladder 30 is filled with a non-Newtonian fluid, which is a shear-thickening fluid whose viscosity increases sharply with the increase of the shear rate. Viewed along a direction perpendicular to the first straight conveying path, the cross-sectional area of ​​the buffer bladder 30 is smaller than the cross-sectional area of ​​the groove 11, leaving a certain gap between them to accommodate the flow of the non-Newtonian fluid when the buffer bladder 30 is deformed under pressure.

[0039] During the stopping process, the steel profile first comes into contact with the buffer block 20 extending from the slide groove 11. At the moment of contact, there is still a certain velocity difference between the two. This velocity difference acts on the non-Newtonian fluid in the buffer bladder 30, causing the non-Newtonian fluid to be subjected to a high shear rate. Its viscosity increases sharply, exhibiting high rigidity and impact resistance characteristics similar to a solid. It can withstand the impact load of the steel profile without producing large compressive deformation, effectively avoiding the situation where the steel profile directly collides rigidly with the baffle 10 due to the instantaneous crushing of the buffer block 20.

[0040] After the steel profile comes into contact with the buffer block 20, the magnet 50 exerts a continuous attractive force on the profile. Under this attractive force, the steel profile applies a continuous thrust toward the bottom of the chute 11 on the buffer block 20. At the same time, the profile and the buffer block 20 rapidly approach synchronous motion, and the relative velocity between them approaches zero. The shear rate acting on the buffer bladder 30 decreases sharply, the viscosity of the non-Newtonian fluid decreases significantly, and the stiffness of the buffer bladder 30 decreases, making it more flexible and easily deformable.

[0041] Under the continuous but gentle squeezing force generated by the attraction of magnet 50, buffer bladder 30 is gradually compressed and deformed, causing buffer block 20 to smoothly retract into groove 11. Non-Newtonian fluid flows slowly within buffer bladder 30 and is gradually released into the gap space between the cross-section of buffer bladder 30 and the cross-section of groove 11. Finally, buffer block 20 is completely retracted into groove 11, with its back side abutting against the bottom of groove 11, and the end face of steel profile making smooth contact with the retaining surface of baffle 10.

[0042] Subsequently, the profiles adhere to the baffle 10 under the attraction of the magnet 50. Under the control of the speed change drive assembly, the two decelerate synchronously to zero, so that each steel profile stops at the same or similar position, thereby effectively improving the positioning accuracy of the steel profiles and providing convenience for subsequent processes.

[0043] In this embodiment, a buffer bladder 30 filled with a non-Newtonian fluid is provided between the buffer block 20 and the bottom of the chute 11. Utilizing the characteristic that the viscosity of the non-Newtonian fluid changes with the shear rate, an adaptive graded buffering mechanism that is first rigid and then flexible is achieved: At the moment of contact, the velocity difference causes the non-Newtonian fluid to be subjected to a high shear rate, and the viscosity increases sharply. The buffer bladder 30 exhibits high rigidity characteristics similar to a solid, which can withstand impact loads without excessive compression deformation, effectively preventing overload of the buffer system. During the synchronous motion phase after contact, the shear rate decreases, the viscosity of the non-Newtonian fluid decreases, and the rigidity of the buffer bladder 30 decreases. Under the continuous and gentle squeezing force generated by the attraction of the magnet 50, it gradually contracts and deforms, causing the buffer block 20 to smoothly retract into the chute 11, and the end face of the steel profile finally makes smooth contact with the baffle 10.

[0044] This graded buffering strategy, in conjunction with the speed regulation strategy of the variable speed drive component, reduces the impact stress acting on the profile end from two aspects: reducing contact impact and gently absorbing residual kinetic energy. This effectively protects the dimensional accuracy and appearance quality of the profile end, while further reducing the impact noise generated by the collision, which helps to improve the workshop production environment.

[0045] Furthermore, the non-Newtonian fluid filling the buffer bladder 30 not only provides high stiffness and impact resistance at the moment of contact, but also plays a crucial role in preventing multiple collisions. The non-Newtonian fluid's viscosity increases dramatically due to the high shear rate at the moment of contact, absorbing and dissipating the impact energy in a solid-like state, significantly suppressing the elastic recovery process and reducing the elastic restoring force that pushes the two apart. The continuous attraction force of the magnet 50, combined with the elastic inhibition effect of the non-Newtonian fluid, ensures that the profile and the baffle 10 system remain in close contact after the initial contact, preventing separation and eliminating the conditions for multiple collisions at both structural and mechanistic levels.

[0046] like Figure 5 and Figure 6 As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, a plurality of springs 40 are also included. The plurality of springs 40 are spaced apart and sandwiched between the buffer block 20 and the bottom of the chute 11, and are disposed in the buffer bladder 30.

[0047] It should be noted that, in this embodiment, a plurality of springs 40 are also provided at intervals between the buffer block 20 and the bottom of the slide groove 11. Each spring 40 is evenly or approximately evenly distributed between the back of the buffer block 20 and the bottom of the slide groove 11 along the width or height direction of the buffer block 20. One end of the spring 40 abuts or is fixedly connected to the back of the buffer block 20, and the other end abuts or is fixedly connected to the inner wall surface of the bottom of the slide groove 11.

[0048] Spring 40 has a certain pre-compression in its natural state, applying a restoring force to buffer block 20 in the direction of the opening of slide groove 11, so that the front end of buffer block 20 remains extended out of slide groove 11 when no external force is applied. When the steel profile pushes buffer block 20 back into slide groove 11, spring 40 is further compressed and stores elastic potential energy; when the profile completes the stop and is removed, spring 40 releases the stored elastic potential energy, driving buffer block 20 to automatically return to its initial extended position, preparing for the next stop operation.

[0049] It should be noted that in this embodiment, the stiffness coefficient of the spring 40 is selected to be moderately small. Its main function is to provide restoring force for the buffer block 20 and to participate in auxiliary energy absorption during the synchronous deceleration phase, rather than to act as the main impact energy absorption element to bear the impact load at the moment of contact. The main function of impact energy absorption is undertaken by the non-Newtonian fluid in the buffer bladder 30.

[0050] Furthermore, several springs 40 are disposed within the internal space of the buffer bladder 30, and the springs 40 are surrounded by a non-Newtonian fluid. Specifically, the springs 40 are disposed along the axial direction of the buffer bladder 30 (i.e., perpendicular to the stop surface) between the back of the buffer block 20 and the bottom of the groove 11, with both ends of the springs 40 abutting against the back of the buffer block 20 and the bottom of the groove 11, respectively. The outer periphery of the springs 40 is submerged in the non-Newtonian fluid within the buffer bladder 30. By embedding the springs 40 within the buffer bladder 30, the buffer bladder 30 and the springs 40 are structurally integrated, reducing the space occupied within the groove 11, and simultaneously allowing the non-Newtonian fluid to fully envelop the coils of the springs 40.

[0051] When the viscosity of the non-Newtonian fluid increases sharply at the moment of contact, the non-Newtonian fluid becomes semi-solid between the coils of spring 40, forming a high-stiffness support together with spring 40.

[0052] In a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, magnet 50 is an electromagnet, and the electromagnet is electrically connected to the controller; the controller is configured to: After receiving the signal emitted when sensor 60 is triggered, the electromagnet is energized.

[0053] After the baffle 10 decelerates to zero, the electromagnet is de-energized.

[0054] It should be noted that in this embodiment, the magnet 50 is replaced by an electromagnet instead of a permanent magnet. The electromagnet is installed on the side of the buffer bag 30 facing away from the buffer block 20 (i.e., the side near the bottom of the slide 11). The lead wire of the electromagnet's coil is electrically connected to the controller.

[0055] The controller's control logic for the electromagnet is as follows: When the controller receives a signal from the sensor 60 when it is triggered, it controls the speed-changing drive assembly to drive the baffle 10 to move while simultaneously energizing the electromagnet's coil to generate a magnetic field. During the synchronous deceleration phase, the electromagnet continuously attracts the steel profile, generating a continuous compressive force on the buffer bladder 30, driving the buffer block 20 to retract smoothly. When the speed of the baffle 10 decreases to zero and the profile is stopped, the controller de-energizes the electromagnet, the electromagnet's magnetic field disappears, and the attractive force on the steel profile is eliminated. After the electromagnet is de-energized, the profile is no longer subject to magnetic constraint, facilitating the second conveying mechanism to pick up and transfer the profile.

[0056] like Figure 5 and Figure 6 As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, the buffer block 20 includes a buffer layer 21 and a rigid layer 22 that are fixedly connected. The rigid layer 22 is made of ferromagnetic material and is attached to the buffer bladder 30.

[0057] Specifically, after the steel profile comes into contact with the buffer layer 21 and begins to decelerate synchronously, and before the baffle 10 decelerates to zero, the buffer layer 21 and the rigid layer 22 are drawn into the groove 11 by the attraction of the electromagnet, so that the end face of the buffer layer 21 is separated from the steel profile.

[0058] It should be noted that in this embodiment, the buffer block 20 is formed by two layers fixedly connected: the buffer layer 21 is located on the side facing the steel profile, and its end face is the working surface that directly contacts the profile. It is made of a material with a certain elasticity and toughness (such as polyurethane, rubber, etc.) and is used to provide a flexible contact surface at the moment of contact to reduce the contact stress between the end of the profile and the buffer block 20; the rigid layer 22 is located on the back of the buffer layer 21 and is in close contact with the buffer bladder 30. It is made of ferromagnetic material (such as low carbon steel, cast iron and other ferromagnetic metals).

[0059] During the stopping process, after the buffer layer 21 of the buffer block 20 contacts the end of the steel profile, both decelerate synchronously. During the synchronous deceleration phase, as the viscosity of the non-Newtonian fluid decreases and the stiffness of the buffer bladder 30 decreases, the electromagnet continues to be energized, and its magnetic field generates an attraction force on the rigid layer 22 towards the bottom of the chute 11. This attraction force drives the buffer layer 21 to retract into the chute 11 through the rigid layer 22, and the buffer bladder 30 and its spring 40 are gradually compressed during the retraction process. Before the baffle 10 decelerates to zero, the buffer layer 21 and the rigid layer 22 have been completely retracted into the chute 11 under the drive of the electromagnet's attraction force. A gap is formed between the end face of the buffer layer 21 and the end face of the steel profile, and the end face of the steel profile no longer contacts the buffer block 20, but instead directly contacts the retaining surface of the baffle 10 and completes the final stopping.

[0060] After the stop is completed, the controller de-energizes the electromagnet, which promptly eliminates the continuous attraction of the magnetic force on the steel profile. This prevents the profile from increasing friction due to magnetic pressure as it slides away along the stop surface, effectively reducing wear on the profile end and ensuring the quality and dimensional accuracy of the profile end face.

[0061] Meanwhile, since the spring 40 inside the buffer bladder 30 is wrapped by a non-Newtonian fluid, the spring 40 is damped by the non-Newtonian fluid when it releases its elastic potential energy after the electromagnet is de-energized. This significantly slows down the outward extension speed of the buffer block 20, so that the steel profile has already left the position of the baffle 10 when the buffer block 20 extends. This avoids contact or scraping between the end face of the buffer layer 21 and the end face of the sliding profile, effectively avoiding or reducing wear on the surface of the buffer layer 21, further extending the service life of the buffer layer 21, and improving the reliability of the buffer mechanism in long-term operation.

[0062] like Figure 1 and Figure 2As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, the speed-changing drive assembly includes a mounting frame 71, a rack 72, a gear 73, and a speed-changing drive element 74. The mounting frame 71 is fixedly installed; the rack 72 is slidably installed inside the mounting frame 71, extends along the first straight conveying path, and one end is fixedly connected to the baffle 10; the gear 73 is rotatably installed on the mounting frame 71; the power output end of the speed-changing drive element 74 is connected to the gear 73 to drive the gear 73 to rotate at a different speed.

[0063] It should be noted that, in this embodiment, the transmission drive assembly consists of a mounting frame 71, a rack 72, a gear 73, and a transmission drive element 74. The mounting frame 71 is fixedly installed on the workshop floor or equipment base, providing rigid support for the entire transmission drive assembly. The rack 72 extends along the first linear conveying path and slides in a guide groove within the mounting frame 71. One end of the rack 72 is fixedly connected to the baffle 10, and the reciprocating linear motion of the rack 72 directly drives the baffle 10 to reciprocate along the first linear conveying path. The gear 73 is rotatably mounted on the mounting frame 71 and meshes with the tooth surface of the rack 72.

[0064] The power output end of the variable speed drive element 74 (such as a servo motor, variable frequency motor, etc.) is connected to one of the gears 73. By controlling the speed and direction of the variable speed drive element 74, the rotational motion is converted into linear motion through the gear 73 and rack 72 transmission pair, driving the rack 72 and the baffle 10 to perform variable speed reciprocating motion according to a preset speed change curve. The controller controls the speed change of the variable speed drive element 74 to achieve speed control of the baffle 10, which first accelerates, then decelerates during the contact stage with the profile, and then synchronously decelerates to zero after contact.

[0065] like Figure 1 and Figure 2 As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, there are at least two gears 73, and at least two gears 73 are spaced apart on the mounting frame 71 along the first straight conveying path. The power output end of the speed change drive element 74 is connected to one of the gears 73.

[0066] The transmission drive assembly also includes at least two pressure rollers 75, which are located on the side of the rack 72 facing away from the gear 73 and connected to the mounting frame 71; and at least two pressure rollers 75 are spaced apart on the mounting frame 71 along the first straight conveying path.

[0067] In this embodiment, the dispersed arrangement of multiple gears 73 also helps to even out the force on the baffle 10, reducing the eccentric loading and bending deformation of the rack 72. The pressure roller 75 provided on the back of the rack 72 plays a clamping and guiding role. The pressure roller 75 and the gear 73 form a clamp from both sides of the rack 72, so that the rack 72 always maintains good meshing with the gear 73 during the movement, improving the smoothness and reliability of the transmission, and reducing the movement impact and noise caused by meshing gap.

[0068] like Figure 3 As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, the speed drive assembly further includes at least two limiting guide blocks 76. The two limiting guide blocks 76 are respectively disposed on both sides of the rack 72. The limiting guide blocks 76 are fixedly connected to the mounting bracket 71 and slide in cooperation with the rack 72.

[0069] It should be noted that in this embodiment, limit guide blocks 76 are respectively provided on both sides of the rack 72 (i.e., the two side directions perpendicular to the direction of movement of the rack 72). The limit guide blocks 76 are fixedly installed on the mounting bracket 71, and the inner side of the limit guide block 76 forms a sliding fit with the corresponding side of the rack 72. The limit guide blocks 76 limit and constrain the two sides of the rack 72, restricting the lateral displacement and deflection of the rack 72 perpendicular to its direction of movement, ensuring that the rack 72 moves along a predetermined straight trajectory during reciprocating motion without lateral deviation or torsion. The inner side of the limit guide block 76 can be machined into a plane that fits against the side of the rack 72 or is provided with a wear-resistant pad to reduce sliding friction wear.

[0070] Furthermore, the limit guide block 76 can be a self-lubricating type.

[0071] like Figure 1 and Figure 2 As shown, in a specific embodiment of the noise reduction and buffer mechanism for conveying steel profiles provided in this invention, a support slide rail 80 is also included. The support slide rail 80 is fixedly disposed on the lower side of the baffle 10 and slides in cooperation with the baffle 10.

[0072] It should be noted that in this embodiment, a support slide rail 80 is also provided on the lower side of the baffle 10. The support slide rail 80 is fixedly installed on the ground or equipment base, and a sliding fit is formed between the bottom surface of the baffle 10 and the upper surface of the support slide rail 80. The support slide rail 80 extends along the movement direction of the baffle 10, providing support and guidance for the bottom of the baffle 10. When the baffle 10 reciprocates under the drive of the transmission drive assembly, the bottom surface of the baffle 10 slides along the upper surface of the support slide rail 80. The support slide rail 80 bears the weight of the baffle 10 and the vertical load and vertical component of the impact force exerted on the baffle 10 by the steel profile during the stopping process, preventing the baffle 10 from shaking or sinking during the movement.

[0073] Based on the same inventive concept, embodiments of the present invention also provide a steel profile conveying device, including the above-mentioned noise reduction and buffering mechanism for conveying steel profiles, and further including a first conveying mechanism and a second conveying mechanism. The first conveying mechanism is used to convey steel profiles along a first straight conveying path; the second conveying mechanism is located at the end of the first conveying mechanism and the conveying direction is perpendicular to the first straight conveying path; the noise reduction and buffering mechanism for conveying steel profiles is located at the end of the first conveying mechanism and upstream of the second conveying mechanism, and is used to stop the steel profiles conveyed by the first conveying mechanism to the second conveying mechanism.

[0074] It should be noted that, in this embodiment, the first conveying mechanism conveys the steel profile along the first straight conveying path, and its conveying direction is the first direction. The second conveying mechanism is located at the end of the first conveying mechanism, and the conveying direction of the second conveying mechanism is perpendicular to the first straight conveying path, that is, the second conveying mechanism conveys the profile along the second direction.

[0075] The noise reduction and buffer mechanism is installed at the end of the first conveyor mechanism and above the second conveyor mechanism. During operation, the steel profile is conveyed to the end of the first conveyor mechanism along the first direction. When the profile reaches the end of the first conveyor mechanism, it is transferred from the first conveyor mechanism to the second conveyor mechanism (e.g., through roller conveyor connection, chain transition, or inertial sliding). At this time, the noise reduction and buffer mechanism stops and positions the profile, ensuring it accurately stops at the preset station on the second conveyor mechanism. Subsequently, the second conveyor mechanism conveys the profile to the next station along the second direction. The noise reduction and buffer mechanism is installed upstream of the second conveyor mechanism, with the baffle 10's retaining surface facing the direction of profile movement, acting on the profile from the side during the stopping process.

[0076] The beneficial effects of the steel profile conveying device provided in this embodiment of the invention are as follows: Compared with the prior art, the steel profile conveying device provided in this embodiment of the invention forms a complete profile turning and conveying system by integrating the aforementioned noise reduction and buffering mechanism at the end of the first conveying mechanism and located on the upper side of the second conveying mechanism. The noise reduction and buffering mechanism flexibly stops and positions the profile at the connection position between the first and second conveying mechanisms, avoiding the rigid collision between the profile end and the baffle 10 in the traditional fixed baffle 10 method, effectively protecting the quality and dimensional accuracy of the profile end, and reducing the product defect rate.

[0077] Meanwhile, the low-impact stopping method and the energy dissipation effect of the non-Newtonian fluid buffer bladder 30 significantly reduce workshop noise levels and improve the production environment. The noise reduction buffer mechanism adopts an adaptive graded buffering strategy that combines rigidity followed by flexibility with a stopping method that is compatible with variable speed motion control. This allows it to adapt to the stopping requirements of steel profiles of different masses and conveying speeds, improving the automation level and production efficiency of the profile turning and conveying process.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A noise reduction and buffer mechanism for conveying steel profiles, characterized in that, include: A baffle (10) is provided at the end of the first straight conveying path, and the side facing the first straight conveying path is a material blocking surface, which is perpendicular to the first straight conveying path. A magnet (50), connected to the baffle (10), is used to attract steel profiles; The variable speed drive assembly has its power output end connected to the baffle (10) and is used to drive the baffle (10) to change speed. A sensor (60) is located upstream of the baffle (10) to detect the position of the steel profile; The controller, electrically connected to the transmission drive assembly and the sensor (60), is configured to: After receiving the signal emitted when the sensor (60) is triggered, the variable speed drive assembly is controlled to drive the baffle (10) to accelerate and then decelerate along the first straight conveying path, so that the steel profile comes into contact with the baffle (10) during the deceleration process and is attracted to the baffle (10) by the magnet (50), and then decelerates synchronously to zero; after a first preset time interval, the baffle (10) is controlled to reset.

2. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 1, characterized in that, A groove (11) is provided on the material-blocking surface; the noise reduction and buffer mechanism for conveying steel profiles further includes: The buffer block (20) is slidably disposed in the slide groove (11), and one end has the freedom to extend or retract from the slide groove (11); A buffer bladder (30) is sandwiched between the buffer block (20) and the bottom of the chute (11), and the buffer bladder (30) is filled with a non-Newtonian fluid; along the vertical first straight conveying path, the cross section of the buffer bladder (30) is smaller than the cross section of the chute (11); During the process of the steel profile abutting against the baffle, the steel profile first abuts against the buffer block (20), and then, under the attraction of the magnet (50), the buffer bladder (30) is squeezed, causing the buffer block (20) to retract and the steel profile to abut against the baffle (10).

3. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 2, characterized in that, It also includes several springs (40), which are spaced between the buffer block (20) and the bottom of the groove (11) and are located inside the buffer bladder (30).

4. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 3, characterized in that, The magnet (50) is an electromagnet, and the electromagnet is electrically connected to the controller; the controller is configured to: Upon receiving the signal emitted when the sensor (60) is triggered, the electromagnet is energized. After the baffle (10) decelerates to zero, the electromagnet is de-energized.

5. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 4, characterized in that, The buffer block (20) includes a buffer layer (21) and a rigid layer (22) that are fixedly connected. The rigid layer (22) is made of ferromagnetic material and is attached to the buffer bladder (30). Wherein, after the steel profile comes into contact with the buffer layer (21) and begins to decelerate synchronously, and before the baffle (10) decelerates to zero, the buffer layer (21) and the rigid layer (22) are drawn into the groove (11) by the attraction of the electromagnet, so that the end face of the buffer layer (21) is separated from the steel profile.

6. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 1, characterized in that, The variable speed drive component includes: Mounting bracket (71), fixedly installed; A rack (72) is slidably disposed in the mounting bracket (71). The rack (72) extends along the first straight conveying path and one end is fixedly connected to the baffle (10). Gear (73) is rotatably mounted on the mounting bracket (71); The variable speed drive element (74) has its power output end connected to the gear (73) and is used to drive the gear (73) to rotate at a variable speed.

7. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 6, characterized in that, There are at least two gears (73), and at least two gears (73) are spaced apart on the mounting bracket (71) along the first straight conveying path. The power output end of the transmission drive element (74) is connected to one of the gears (73). The variable speed drive assembly also includes at least two pressure rollers (75), which are disposed on the side of the rack (72) facing away from the gear (73) and connected to the mounting frame (71); and at least two pressure rollers (75) are spaced apart on the mounting frame (71) along the first straight conveying path.

8. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 7, characterized in that, The transmission drive assembly also includes at least two limiting guide blocks (76), which are respectively disposed on both sides of the rack (72). The limiting guide blocks (76) are fixedly connected to the mounting bracket (71) and slide in cooperation with the rack (72).

9. The noise reduction and buffer mechanism for conveying steel profiles as described in claim 1, characterized in that, It also includes a support slide rail (80), which is fixedly installed on the lower side of the baffle (10) and slides in cooperation with the baffle (10).

10. A steel profile conveying device, characterized in that, Including the noise reduction and buffer mechanism for conveying steel profiles as described in any one of claims 1-9, it further includes: The first conveying mechanism is used to convey steel profiles along a first straight conveying path; The second conveying mechanism is located at the end of the first conveying mechanism and its conveying direction is perpendicular to the first straight conveying path; The noise reduction and buffer mechanism for conveying steel profiles is located at the end of the first conveying mechanism and upstream of the second conveying mechanism, and is used to stop the steel profiles conveyed by the first conveying mechanism to the second conveying mechanism.

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