Profile positioning and conveying mechanism

Abstract

The invention relates to the technical field of profile machining, and discloses a profile positioning and conveying mechanism. Comprising a bottom frame, at least one conveying roller rotatably arranged on the bottom frame, a conveying driving structure used for driving the conveying roller to rotate, a fixed wheel and a movable wheel which are rotatably arranged on the bottom frame, and a material pushing driving structure used for driving the movable wheel to transversely move to be close to or away from the fixed wheel. The axes of the fixed wheel and the movable wheel extend vertically, and the fixed wheel and the movable wheel are arranged in a staggered mode in the transverse direction. The profile positioning and conveying mechanism has the functions of conveying and positioning profiles at the same time, in the profile conveying process, the profiles of different specifications are synchronously and accurately positioned in the transverse direction through the synergistic effect of the fixed wheels and the movable wheels, meanwhile, the positions are automatically corrected in the longitudinal conveying process, and the positioning accuracy is improved. The inaccuracy of a traditional single-side positioning mode is avoided, and the profile cutting precision is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of profile processing, and in particular to a profile positioning and conveying mechanism. Background Art

[0002] Flat-shaped profiles such as rectangular tubes, I-beams, channels, angle irons, etc. are widely used in building structures, bridges, machinery manufacturing, equipment supports and other fields due to their advantages of high structural strength, light weight, easy processing, good durability and stability.

[0003] In order to cope with high-volume and standardized production rhythm, the processing mode of enterprises tends to be automated production. The existing patent (CN212823432U) discloses a laser cutting automated production line for profile cutting. After the profile is transported to the conveyor roller by the feeding mechanism, the profile on the conveyor roller is laterally positioned by the lateral positioning mechanism, and the conveyor roller gradually conveys the profile to the direction of the laser cutter until the entire profile is cut. The conveyor roller will form an avoidance cutting interval under the laser cutter to prevent the laser from being damaged by the conveyor roller on the conveyor roller during cutting. It can be seen that in this cutting method, when cutting, the profile will move longitudinally relative to the laser cutter to change the cutting position in the length direction of the profile, that is, the laser cutter will not move longitudinally for a long distance, and there are processing limitations; in addition, the conveyor roller and the lateral positioning mechanism are also independent mechanisms, and the unilateral positioning method of the lateral positioning mechanism is also difficult to accurately position the profile. Therefore, when designing a solution for the laser cutter to move long distances to achieve profile cutting, it is necessary to design a profile positioning and conveying mechanism that matches the lifting mechanism (the laser cutter lifts the profile when cutting the profile to prevent the laser from damaging the profile positioning and conveying mechanism), and to reliably position the profile when it is conveyed.

[0004] It can be seen that the existing technology still needs to be improved and enhanced. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a profile positioning and conveying mechanism, which can not only convey the profile but also reliably position the profile during its conveyance.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A profile positioning and conveying mechanism comprises a base frame, at least one conveying roller rotatably arranged on the base frame, a conveying driving structure for driving the conveying roller to rotate, a fixed wheel and a movable wheel rotatably arranged on the base frame, and a pushing driving structure for driving the movable wheel to move laterally toward or away from the fixed wheel; the axes of the fixed wheel and the movable wheel extend vertically and the fixed wheel and the movable wheel are arranged in a transverse offset manner.

[0008] As a further improvement of the above technical solution, the conveying roller is provided with one fixed wheel located at the front side of the conveying roller and the movable wheel located at the rear side of the conveying roller.

[0009] As a further improvement of the above technical solution, the push drive structure includes a first square tube fixed to the base frame and extending laterally, a linear drive and a slider arranged in the first square tube, the tail of the linear drive is bolted to the first square tube, and the output end of the linear drive is connected to the slider; the movable wheel is arranged on the slider, and the first square tube is provided with a long hole to avoid the lateral movement of the movable wheel.

[0010] As a further improvement of the above technical solution, a cover plate for covering the elongated hole is provided on the first square tube, and the support shaft of the movable wheel passes through the cover plate, so that the cover plate moves laterally following the movable wheel.

[0011] As a further improvement of the above technical solution, a plurality of adjustment holes are arranged at intervals along the horizontal direction on both side surfaces of the first square tube, and the adjustment holes on the two side surfaces correspond to each other one by one. The bolt for fixing the tail of the linear drive passes through the adjustment hole at one position and then cooperates with the nut.

[0012] As a further improvement of the above technical solution, a threaded hole is arranged above each positioning hole, and each positioning hole is equipped with a sealing plate, on which a through hole corresponding to the threaded hole is provided. After the fixing screw passes through the through hole, it cooperates with the threaded hole so that the sealing plate covers the non-working positioning hole.

[0013] As a further improvement of the above technical solution, the cross-sectional shape of the slider is the same as that of the first square tube, and the inner wall of the first square tube guides the sliding of the slider; the linear drive is a cylinder, and a tail frame is provided at the tail of the cylinder to assist in moving.

[0014] As a further improvement of the above technical solution, a first positioning vertical plate for blocking one end of the first square tube is arranged on the base frame, a first plugging plate for inserting into the first square tube is arranged on the first positioning vertical plate, and a sealing cover is arranged at the other end of the first square tube.

[0015] As a further improvement of the above technical solution, the base frame is provided with a second square tube with the same structure as the first square tube and arranged parallel to the first square tube front and back, and the base frame is provided with a second positioning vertical plate for sealing one end of the second square tube, and the second positioning vertical plate is provided with a second plug plate for inserting into the second square tube.

[0016] As a further improvement of the above technical solution, both ends of the conveying roller are arranged on the base frame through bearing seats, and the conveying drive structure includes a bracket arranged on the side of the base frame, a reducer arranged on the bracket, a driving motor connected to the reducer, a driving sprocket arranged on the output end of the reducer, and a driven sprocket arranged on one end of the conveying roller, and the driving sprocket and the driven sprocket are connected by chain transmission.

[0017] Beneficial effects of the present invention: The profile positioning and conveying mechanism provided by the present invention has the functions of conveying and positioning the profiles at the same time. During the profile conveying process, the synergistic effect of the fixed wheel and the movable wheel is used to synchronously realize the precise horizontal positioning of profiles of different specifications. At the same time, the position is automatically corrected during the longitudinal conveying process, avoiding the inaccuracy of the traditional unilateral positioning method, and significantly improving the accuracy of profile cutting. The fixed wheel and the movable wheel are slightly higher than the conveying roller, and are used in conjunction with the lifting mechanism to ensure that there is sufficient space above the profile positioning and conveying mechanism for the laser cutter to move and cut, and will not interfere with the continuous operation of the laser cutter along the length direction of the profile, thereby improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A three-dimensional diagram of the profile positioning and conveying mechanism provided by the present invention.

[0019] Figure 2 A cross-sectional view of the profile positioning and conveying mechanism provided by the present invention.

[0020] Figure 3 A schematic diagram of the profile positioning and conveying mechanism provided by the present invention for positioning and conveying profiles.

[0021] Figure 4 It is a three-dimensional diagram of the first square tube.

[0022] Explanation of the main component symbols: 1-base frame, 11-first positioning vertical plate, 12-first plug plate, 2-transmission roller, 20-bearing seat, 3-transmission drive structure, 31-bracket, 32-reducer, 33-driving sprocket, 34-driven sprocket, 35-chain, 4-fixed wheel, 5-movable wheel, 6-push drive structure, 61-first square tube, 611-long hole, 612-adjusting hole, 613-threaded small hole, 62-linear drive, 63-slider, 64-cover plate, 65-bolt, 66-sealing plate, 67-fixing screw, 68-tail frame for auxiliary movement, 69-sealing cover, 71-second square tube, 8-profile. DETAILED DESCRIPTION

[0023] The present invention provides a profile positioning and conveying mechanism. To make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0024] See also Figure 1-Figure 4 The present invention provides a profile positioning and conveying mechanism, comprising a base frame, at least one conveying roller 2 rotatably arranged on the base frame, a conveying driving structure 3 for driving the conveying roller 2 to rotate, a fixed wheel 4 and a movable wheel 5 rotatably arranged on the base frame, and a pushing driving structure 6 for driving the movable wheel 5 to move laterally toward or away from the fixed wheel 4; the axes of the fixed wheel 4 and the movable wheel 5 extend vertically and the fixed wheel 4 and the movable wheel 5 are arranged in a transverse offset manner.

[0025] In actual application, the cutting area is provided with a plurality of longitudinally spaced profile positioning and conveying mechanisms, and a lifting mechanism is arranged next to each profile positioning and conveying mechanism. The laser cutter moves longitudinally above the conveying mechanism and the lifting mechanism driven by the multi-axis sliding mechanism to realize the cutting processing of the profile 8 in the length direction. The profile 8 is conveyed into the cutting area, and the profile 8 is supported by the conveying roller 2 on the profile 8 positioning and conveying mechanism and driven by the conveying drive structure 3, the conveying roller 2 drives the profile 8 to be conveyed forward. During the conveying process, the conveying drive structure 3 drives the movable wheel 5 to move laterally toward the fixed wheel 4, and the movable wheel 5 pushes one side of the profile 8 until the other side of the profile 8 is tightly attached to the fixed wheel 4. The fixed wheel 4 and the movable wheel 5 work together to correct the lateral position deviation of the profile 8. Since the fixed wheel 4 and the movable wheel 5 can rotate, their wheel surfaces provide guidance for the longitudinal movement of the profile 8, thereby synchronously realizing lateral positioning during the profile 8 conveying process; when the front end of the profile 8 moves to the set position, the conveying roller 2 stops conveying, and the front end of the profile 8 smoothly reaches the longitudinal reference point. There is no need to adjust the position of the profile 8 later, which causes the longitudinal reference point of the profile 8 to shift, thereby ensuring the accuracy of the subsequent cutting position.

[0026] The profile 8 positioning and conveying mechanism provided by the present invention has both the conveying and positioning functions of the profile 8. During the conveying process of the profile 8, the synergistic effect of the fixed wheel 4 and the movable wheel 5 is utilized to synchronously realize the precise horizontal positioning of profiles 8 of different specifications, and the position is automatically corrected during the longitudinal conveying process, thereby avoiding the inaccuracy of the traditional unilateral positioning method and significantly improving the cutting accuracy of the profile 8. The fixed wheel 4 and the movable wheel 5 are slightly higher than the conveying roller 2, and are used in conjunction with the lifting mechanism to ensure that there is sufficient space above the profile 8 positioning and conveying mechanism for the laser cutter to move and cut, and will not interfere with the continuous operation of the laser cutter along the length direction of the profile 8, thereby improving production efficiency.

[0027] Since the axes of the fixed wheel 4 and the movable wheel 5 extend vertically and are staggered laterally, they can better disperse the pressure of the profile 8 during the conveying process, avoid excessive force on a single point, thereby reducing the wear of the wheels and the profile 8 and extending the service life of the equipment. Both the fixed wheel 4 and the movable wheel 5 can rotate on their own, which means that they can not only provide guidance, but also automatically adjust the contact point as the shape or size of the profile 8 changes, ensuring adaptability to different profiles 8 and improving processing flexibility.

[0028] In a specific embodiment, the conveying roller 2 is provided with one fixed wheel 4, which is located at the front side of the conveying roller 2, and the movable wheel 5 is located at the rear side of the conveying roller 2. The provision of only one conveying roller 2 simplifies the design of the positioning and conveying mechanism of the profile 8, reduces the number of mechanical parts, is easy to install and maintain, and also reduces the manufacturing cost. In addition, the movable wheel 5 is located at the rear side of the conveying roller 2, and can be pushed laterally after the profile 8 has been conveyed for a certain distance. At this time, the profile 8 has partially escaped the direct influence of the conveying roller 2, and the lateral movement of the movable wheel 5 makes it easier to apply a correction force to the profile 8, thereby achieving rapid and accurate lateral positioning without interfering with the stable advancement of the profile 8.

[0029] Specifically, the push drive structure 6 includes a first square tube 61 fixed to the base frame and extending laterally, a linear driver 62 and a slider 63 arranged in the first square tube 61, the tail of the linear driver 62 is bolted to the first square tube 61, and the output end of the linear driver 62 is connected to the slider 63; the movable wheel 5 is arranged on the slider 63, and the first square tube 61 is provided with an elongated hole 611 for avoiding the lateral movement of the movable wheel 5, and the elongated hole 611 refers to a non-circular hole, which can be a rectangular hole, a waist-shaped hole, a rounded rectangular hole, etc.

[0030] Through such a configuration, the linear drive 62 can be built into the first square tube 61, and the first square tube 61 can provide external protection for the linear drive 62 and the wiring, effectively isolating the linear drive 62 and its internal wiring (including air pipes and signal lines) from direct contact with the external environment, preventing the intrusion of pollutants such as dust, cutting chips, coolant, and damage caused by accidental impacts, significantly extending the service life of the linear drive 62 and its components, and reducing maintenance frequency and costs.

[0031] When working, the linear drive 62 can provide precise thrust control, so that the movable wheel 5 on the slider 63 can move toward the fixed wheel 4 at a stable and controllable speed and force, thereby achieving fine adjustment and precise correction of the lateral position of the profile 8. This design improves the flexibility and accuracy of the lateral positioning of the profile 8, and adapts to the processing requirements of profiles 8 of different sizes and materials.

[0032] Due to the harsh working environment on site, in order to ensure the stable operation and extend the service life of the linear drive system, a cover plate 64 for covering the elongated hole 611 is provided on the first square tube 61, and the support shaft of the movable wheel 5 passes through the cover plate 64, so that the cover plate 64 moves laterally with the movable wheel 5. The setting of the cover plate 64 effectively closes the elongated hole 611, preventing foreign matter such as chips and dust from falling into the movement path of the linear drive 62 or the slider 63 during the production operation, reducing potential safety hazards and equipment damage risks, and significantly enhancing the dustproof and waterproof capabilities of the equipment to a certain extent.

[0033] The two sides of the first square tube 61 are arranged with multiple adjustment holes 612 at intervals along the horizontal direction. The adjustment holes 612 on the two side surfaces correspond to each other. The bolt 65 used to fix the tail of the linear actuator 62 passes through the adjustment hole 612 at one position and then cooperates with the nut. When installing or adjusting the linear actuator 62, there is no need for complicated measurements and customized accessories. It is only necessary to select the appropriate adjustment hole 612 to fix the bolt 65, which greatly simplifies the installation and debugging steps. Through the setting of the adjustment hole 612, the position of the linear actuator 62 can be flexibly adjusted according to the actual production needs or the different specifications of the profile 8, so as to achieve the best relative position between the movable wheel 5 and the fixed wheel 4, ensure the accuracy of the horizontal positioning of the profile 8, and improve the flexibility and adaptability of processing.

[0034] In order to prevent dust, cutting fluid and other impurities from entering the first square tube 61 through the adjustment holes 612 and causing pollution, a threaded hole 613 is provided above each adjustment hole 612, and each adjustment hole 612 is equipped with a sealing sheet 66, which is provided with a perforation corresponding to the threaded hole 613. After the fixing screw 67 passes through the perforation, it cooperates with the threaded hole 613, so that the sealing sheet 66 covers the non-working adjustment hole 612. The sealing sheet 66 can tightly cover the unused adjustment hole 612, prevent dust, cutting fluid and other impurities from entering the first square tube 61, and maintain the sealing of the first square tube 61.

[0035] Preferably, the cross-sectional shape of the slider 63 is the same as that of the first square tube 61, and the inner wall of the first square tube 61 is cleverly used to guide the sliding of the slider 63, thereby ensuring the straightness and stability of the slider 63 during the sliding process, reducing friction and shaking, and improving the accuracy of the movement of the movable wheel 5, thereby ensuring the accuracy of the lateral positioning of the profile 8; the linear drive 62 is a cylinder, and the cylinder drive usually has a faster response speed and sufficient driving force, which can quickly adjust the position of the movable wheel 5 to adapt to rapidly changing production needs, and is particularly suitable for application scenarios that require frequent positioning adjustments. The tail of the cylinder is provided with an auxiliary tail frame 68, which helps to move and reduce friction when adjusting the position of the cylinder in the first square tube 61.

[0036] The base frame is provided with a first positioning vertical plate 11 for blocking one end of the first square tube 61, the first positioning vertical plate 11 is provided with a first plugging plate 12 for inserting into the first square tube 61, and the other end of the first square tube 61 is provided with a sealing cover 69. The first positioning vertical plate 11 and the sealing cover 69 respectively block both ends of the first square tube 61, which can further enhance the sealing inside the first square tube 61 and protect the linear drive 62 and parts in the first square tube 61. The first plugging plate 12 is convenient for docking and installation with the first square tube 61 on site, and then the first square tube 61 is welded and fixed to the base frame.

[0037] It should be noted that a wiring hole is provided on the bottom surface of the first square tube 61 for routing the wiring harness for controlling the linear actuator 62 .

[0038] In this embodiment, the base frame is provided with a second square tube 71 having the same structure as the first square tube 61 and arranged parallel to the first square tube 61, and the base frame is provided with a second positioning vertical plate for blocking one end of the second square tube 71, and the second positioning vertical plate is provided with a second plug plate for inserting into the second square tube 71. The introduction of the second square tube 71 enhances the symmetry of the entire base frame structure, making the equipment more balanced in weight distribution and mechanical structure, reducing vibration or unbalanced load caused by structural asymmetry, and improving the stability of equipment operation and processing accuracy. Since the second square tube 71 has the same structure as the first square tube 61, the versatility of assembly can be greatly improved and the mold opening cost can be reduced.

[0039] Preferably, both ends of the conveying roller 2 are arranged on the chassis through the bearing seat 20, and the conveying driving structure 3 includes a bracket 31 arranged on the side of the chassis, a reducer 32 arranged on the bracket 31, a driving motor connected to the reducer 32, a driving sprocket 33 arranged on the output end of the reducer 32, and a driven sprocket 34 arranged on one end of the conveying roller 2, and the driving sprocket 33 and the driven sprocket 34 are connected by a chain 35. Under the drive of the driving motor, the conveying roller 2 rotates to realize the transmission through the transmission of the reducer 32, the driving sprocket 33, the chain 35, and the driven sprocket 34 in sequence. The driving sprocket 33 and the driven sprocket 34 are connected by the chain 35 transmission method, which can effectively reduce the kinetic energy loss in the transmission process and improve the efficiency and stability of power transmission. The conveying roller 2 is installed through the bearing seat 20, which reduces the direct friction with the chassis, reduces wear, prolongs the service life of the conveying roller 2 and the bearing, and reduces the cost of long-term maintenance and replacement of parts. In order to prevent dust and cutting iron chips from affecting the operation of the bearing seat and the transmission drive structure 3, a protective cover is provided around the bearing seat and the transmission drive structure 3 for protection.

[0040] In fact, the conveying roller 2 of the profile positioning and conveying mechanism can not only convey the profile to be cut forward, but also convey the profile that has been cut backward to realize unloading.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A profile positioning and conveying mechanism, It is characterized in that It includes a base frame, at least one conveying roller rotatably arranged on the base frame, a conveying driving structure for driving the conveying roller to rotate, a fixed wheel and a movable wheel rotatably arranged on the base frame, and a pushing driving structure for driving the movable wheel to move laterally closer to or away from the fixed wheel; the axes of the fixed wheel and the movable wheel extend vertically and the fixed wheel and the movable wheel are arranged in a transverse offset manner.

2. The profile positioning and conveying mechanism according to claim 1, It is characterized in that The conveying roller is provided with one fixed wheel, the fixed wheel is located at the front side of the conveying roller, and the movable wheel is located at the rear side of the conveying roller.

3. The profile positioning and conveying mechanism according to claim 2, It is characterized in that The push drive structure includes a first square tube fixed to the base frame and extending laterally, a linear drive and a slider arranged in the first square tube, the tail of the linear drive is bolted to the first square tube, and the output end of the linear drive is connected to the slider; the movable wheel is arranged on the slider, and the first square tube is provided with a long hole for avoiding the lateral movement of the movable wheel.

4. The profile positioning and conveying mechanism according to claim 3, It is characterized in that The first square tube is provided with a cover plate for covering the long hole, and the support shaft of the movable wheel passes through the cover plate, so that the cover plate moves laterally following the movable wheel.

5. The profile positioning and conveying mechanism according to claim 3, It is characterized in that The two side surfaces of the first square tube are arranged with a plurality of adjustment holes at intervals in the transverse direction, and the adjustment holes on the two side surfaces correspond to each other. The bolt for fixing the tail of the linear actuator passes through the adjustment hole at one position and then cooperates with the nut.

6. The profile positioning and conveying mechanism according to claim 5, It is characterized in that A threaded hole is arranged above each adjustment hole, and each adjustment hole is equipped with a sealing sheet, on which a through hole corresponding to the threaded hole is arranged. After the fixing screw passes through the through hole, it cooperates with the threaded hole, so that the sealing sheet covers the non-working adjustment hole.

7. The profile positioning and conveying mechanism according to claim 3, It is characterized in that The cross-sectional shape of the slider is the same as that of the first square tube, and the inner wall of the first square tube guides the sliding of the slider; the linear actuator is a cylinder, and a tail frame is provided at the tail of the cylinder to assist in movement.

8. The profile positioning and conveying mechanism according to claim 3, It is characterized in that The base frame is provided with a first positioning vertical plate for blocking one end of the first square tube, the first positioning vertical plate is provided with a first plugging plate for inserting into the first square tube, and the other end of the first square tube is provided with a sealing cover.

9. The profile positioning and conveying mechanism according to claim 8, It is characterized in that The base frame is provided with a second square tube having the same structure as the first square tube and arranged parallel to the first square tube in front and back. The base frame is provided with a second positioning vertical plate for blocking one end of the second square tube. The second positioning vertical plate is provided with a second plugging plate for inserting into the second square tube.

10. The profile positioning and conveying mechanism according to claim 2, It is characterized in that The two ends of the conveying roller are arranged on the base frame through bearing seats, and the conveying drive structure includes a bracket arranged on the side of the base frame, a reducer arranged on the bracket, a driving motor connected to the reducer, a driving sprocket arranged on the output end of the reducer, and a driven sprocket arranged on one end of the conveying roller, and the driving sprocket and the driven sprocket are connected by chain transmission.

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