Material lifting mechanism

Abstract

The utility model relates to the field of sectional material processing, and discloses a material lifting mechanism which comprises two supports arranged on the left side and the right side, a linear driver vertically and upwards arranged on the supports, and a lifting flat plate arranged at the output end of the linear driver. At least one material lifting square tube extending transversely is arranged between the two lifting flat plates, and the two ends of the material lifting square tube are connected with the corresponding lifting flat plates through connecting plates respectively. After the sectional material is lifted by the lifting square tube, possible damage to the conveying mechanism in the laser cutting process is effectively avoided, production safety is guaranteed, the service life of the conveying mechanism is prolonged, the stability and accuracy of the sectional material lifted by the lifting square tube in the cutting process are guaranteed through the synchronous lifting and precise control mechanism of the double linear drivers, and the production efficiency is improved. And the cutting error is reduced, the cutting quality and the production efficiency are improved, and particularly, the advantages are obvious in continuous and large-batch production.

Description

Technical Field

[0001] The utility model relates to the field of profile processing, and particularly relates to a material lifting mechanism. Background Art

[0002] Profiles with planar shapes such as rectangular tubes, I-beams, channel steels, and angle irons are widely used in multiple fields such as building structures, bridges, machinery manufacturing, and equipment brackets due to their high structural strength, light weight, easy processing, good durability and stability.

[0003] In order to cope with high production volumes and standardized production rhythms, the enterprise processing mode tends to automated production. The existing patent (CN212823432U) discloses a laser cutting automated production line for profile cutting. The profile is gradually conveyed by a conveyor roller towards the laser cutter until the entire profile is cut. The conveyor roller will form an avoidance cutting area under the laser cutter to prevent the laser from damaging the conveyor roller on the conveyor roller track during cutting. It can be seen that during cutting in this cutting method, 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 over a long distance, resulting in limitations in processing. Therefore, when designing a scheme for the laser cutter to move over a long distance to cut the profile, a special material lifting mechanism for the profile needs to be designed to lift the profile when the laser cutter cuts the profile to prevent the laser from damaging the profile conveying mechanism. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned prior art, the purpose of the present utility model is to provide a material lifting mechanism for assisting in cutting profiles.

[0005] In order to achieve the above purpose, the present utility model adopts the following technical solutions:

[0006] A material lifting mechanism includes two brackets arranged left and right, a linear actuator vertically arranged upward on the brackets, and a lifting flat plate arranged at the output end of the linear actuator; at least one laterally extending material lifting square tube is arranged between the two lifting flat plates, and both ends of the material lifting square tube are respectively connected to the corresponding lifting flat plates through butt joint plates.

[0007] As a further improvement of the above technical solution, a part of the butt joint plate is welded to the material lifting square tube, and a plurality of long holes are opened in the other part. Threaded holes with the same number and one-to-one correspondence as the long holes are opened on the lifting flat plate, and fixing screws pass through the long holes and are connected to the threaded holes.

[0008] As a further improvement of the above technical solution, the bracket is provided with a guide assembly, which includes a guide cylinder fixed on the bracket and a guide rod slidably connected to the guide cylinder, and the top end of the guide rod is connected to the bottom surface of the lifting plate through a circular shaft support.

[0009] As a further improvement of the above technical solution, two guide assemblies are provided on each bracket, and the two guide assemblies are respectively located on the left and right sides of the linear drive.

[0010] As a further improvement of the above technical solution, the bracket includes an upper plate and four branch pipes vertically arranged at the corners of the bottom surface of the upper plate, and the branch pipes between two brackets are connected by a connecting pipe.

[0011] As a further improvement of the above technical solution, the bottoms of the two branch pipes located on the same side are arranged on the same first bottom plate, and a first foot cup is arranged on the bottom plate.

[0012] As a further improvement of the above technical solution, the guide assembly is arranged between two branch pipes on the same side, and an escape opening for avoiding the guide rod is opened on the first bottom plate.

[0013] As a further improvement of the above technical solution, the linear actuator is a cylinder, and the bottom of the linear actuator is arranged on the second bottom plate, and the second bottom plate has a second foot cup at the corner.

[0014] As a further improvement of the above technical solution, two material lifting square tubes are provided and are spaced apart from each other in the front and back.

[0015] As a further improvement of the above technical solution, a protective plate is provided on the periphery of the bracket, and a protective plate is provided on the periphery of the lifting plate.

[0016] Beneficial effects of the utility model: Compared with the prior art, the utility model, through the design of the lifting mechanism, can make the laser cutter move freely in the entire length direction of the profile and perform cutting operations, overcoming the limitations of the traditional fixed cutting method, significantly improving the flexibility and scope of application of processing, and meeting the needs of long-distance and precise cutting. After the profile is lifted by the lifting square tube, the damage to the transmission mechanism that may be caused during the laser cutting process is effectively avoided, ensuring production safety and extending the service life of the transmission mechanism. The mechanism of synchronous lifting and precise control of the dual linear drives ensures the stability and accuracy of the profile lifted by the lifting square tube during the cutting process, reduces cutting errors, and improves cutting quality and production efficiency, especially in continuous and mass production. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The present invention is a three-dimensional diagram of the material lifting mechanism provided by the present invention.

[0018] Figure 2 for Figure 1 A partial enlarged view of the middle L area.

[0019] Figure 3 It is a three-dimensional diagram of the material lifting mechanism in a non-lifting state, and the material lifting mechanism is equipped with a protective plate.

[0020] Figure 4 It is a three-dimensional diagram showing the material lifting mechanism in a lifted state, and the material lifting mechanism is provided with a protective plate.

[0021] Explanation of the main component symbols: 1- bracket, 11- upper plate, 12- branch pipe, 13- connecting pipe, 14- first bottom plate, 141- avoidance, 15- first foot cup, 16- second bottom plate, 17- second foot cup, 2- linear drive, 3- lifting plate, 4- lifting square tube, 5- docking plate, 51- long hole, 6- guide assembly, 61- guide cylinder, 62- guide rod, 63- circular shaft support, 7- protective plate. DETAILED DESCRIPTION

[0022] The utility model provides a material lifting mechanism. In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the protection scope of the utility model.

[0023] See also Figures 1-4 The utility model provides a material lifting mechanism, including two left and right arranged brackets 1, a linear drive 2 vertically upwardly arranged on the brackets 1, and a lifting plate 3 arranged on the output end of the linear drive 2; at least one laterally extending material lifting square passage 4 is arranged between the two lifting plates 3, and the two ends of the material lifting square passage 4 are respectively connected to the corresponding lifting plates 3 through docking plates 5.

[0024] In actual application, the cutting area is provided with a plurality of conveying mechanisms for conveying profiles at longitudinal intervals, and a lifting mechanism is arranged beside each conveying mechanism. The laser cutter moves longitudinally above the conveying mechanism and the lifting mechanism under the drive of the multi-axis sliding mechanism, and cuts the profile in the length direction. It can be understood that when the profile is conveyed to the predetermined position by the conveying mechanism and the profile is transversely positioned, all the lifting mechanisms will lift the profile together, that is, the two linear drivers 2 of each lifting mechanism will synchronously drive the lifting plate 3 and the lifting square tube 4 to rise, and the lifting square tube 4 will lift the profile to separate the profile from the conveying mechanism, so as to prevent the laser emitted by the laser cutter from damaging the conveying mechanism. When the laser cutter moves to the top of a lifting mechanism for cutting, the two linear drivers 2 of the lifting mechanism will automatically and synchronously drive the lifting plate 3 and the lifting square tube 4 to descend, cancel the support for the profile, and perform cutting avoidance, and the remaining lifting mechanisms will jointly support the profile.

[0025] It can be understood that since the rectangular pipe, I-beam, channel steel, and angle iron are all profiles with planar shapes, one of the flat end faces of the lifting square pipe 4 will be horizontally arranged and will abut against the planes on profiles such as the rectangular pipe, I-beam, channel steel, and angle iron. The flat end face of the lifting square pipe 4 provides a large supporting area for the profile, ensuring that the profile is smoothly lifted and remains in place after being lifted.

[0026] Compared with the prior art, through the design of the lifting mechanism of the present utility model, the laser cutter can freely move in the entire length direction of the profile and perform cutting operations, overcoming the limitations of the traditional fixed cutting method, significantly improving the flexibility and application range of processing, and meeting the requirements of long-distance and precise cutting. After the profile is lifted by the lifting square pipe 4, it effectively avoids the damage that may be caused to the conveying mechanism during the laser cutting process, ensures production safety, extends the service life of the conveying mechanism. The mechanism of synchronous lifting and precise control of the double linear drivers 2 ensures the stability and accuracy of the lifting square pipe 4 when lifting the profile during the cutting process, reduces cutting errors, and improves cutting quality and production efficiency, especially having obvious advantages in continuous and large-scale production.

[0027] In order to reduce the assembly difficulty and better adjust the lateral position of the lifting square pipe 4 to ensure that the lifting square pipe 4 reliably supports the profile, a part of the butt joint plate 5 is welded to the lifting square pipe 4, and a plurality of elongated holes 51 are formed in the other part. Threaded holes are formed in the lifting flat plate 3, and the number of the threaded holes is the same as and corresponds to the elongated holes 51 one by one. The fixing screws pass through the elongated holes 51 and are connected to the threaded holes. The elongated holes 51 refer to non-circular holes, and specifically can be rectangular holes, waist-shaped holes, rounded rectangular holes, etc. Loosening the fixing screws can adjust the position of the lifting square pipe.

[0028] Furthermore, a guiding assembly 6 is provided on the bracket 1. The guiding assembly 6 includes a guiding cylinder 61 (such as a linear bearing) fixed on the bracket 1 and a guiding rod 62 slidably connected to the guiding cylinder 61. The top end of the guiding rod 62 is connected to the bottom surface of the lifting flat plate 3 through a circular shaft support 63. When the lifting flat plate 3 moves up and down, through the cooperation of the guiding cylinder 61 and the guiding rod 62, it can ensure that the lifting flat plate 3 does not undergo lateral offset, preventing the linear driver 2 from being damaged by lateral forces.

[0029] In order to further improve the reliability and smoothness of guiding, two guiding assemblies 6 are provided on each bracket 1, and the two guiding assemblies 6 are respectively located on the left and right sides of the linear driver 2.

[0030] The support 1 includes an upper plate 11 and four branch pipes 12 vertically arranged at the corners of the bottom surface of the upper plate 11, and the branch pipes 12 between two supports 1 are connected by a connecting pipe 13. By arranging vertical branch pipes 12 at the four corners of each support 1 and connecting them with connecting pipes 13, a stable frame structure is formed, which significantly enhances the overall stability and anti-overturning ability of the lifting mechanism, and can maintain good structural stability even when lifting heavy-load profiles, ensuring the safety and reliability of the processing process.

[0031] In fact, the floor of the factory is not completely level, so the bottoms of the two branch pipes 12 on the same side are set on the same first bottom plate 14, and the first bottom plate 14 is provided with two first foot cups 15. The first foot cups 15 are adjustable, and the user can adjust the height of the first bottom plate 14 according to the actual ground levelness to ensure that the entire material lifting mechanism remains completely level after installation, so as to avoid the material lifting square tube 4 from causing a decrease in cutting quality due to a slight angle deviation.

[0032] In order to improve the compactness of the structure and rationally utilize the equipment assembly space, the guide assembly 6 is arranged between the two branch pipes 12 on the same side, and the first bottom plate 14 is provided with an avoidance opening 141 for avoiding the guide rod 62 to prevent the bottom end of the guide rod 62 from interfering with the first bottom plate 14.

[0033] The linear drive 2 is a cylinder, which has the advantages of low cost and simple driving mode. The solenoid valves at the air inlet and outlet ends of the cylinder are electrically connected to the control system of the profile processing system, and the profile processing control system controls the operation of the cylinder by controlling the opening and closing of the solenoid valve. Since the lifting plate 3 and the material lifting square tube 4 only need to switch between the two states of "rising to lift materials" and "descending to avoid", the cylinder is used as the driving mechanism. After the material lifting square tube 4 is set to a suitable lifting height, it only needs to switch between the two states of "piston rod fully extended" and "piston rod fully retracted". The control logic is simple, and there is no need to set up a positioning mechanism to realize the positioning of the height position of the lifting plate 3, so that the structure of the entire device is simplified. The piston rod of the cylinder passes through the lifting plate 3. Of course, the linear drive 2 can also use a hydraulic cylinder with better load-bearing capacity.

[0034] In addition to the support for the linear drive 2, the bottom of the linear drive 2 is also provided with a second bottom plate 16, and a second foot cup 17 is provided at the corner of the second bottom plate 16. The provision of the second foot cup 17 enables the position and levelness of the linear drive 2 to be accurately adjusted, sharing the load of the support, which is crucial to ensure cutting accuracy. Even if the ground is slightly uneven, by adjusting the second foot cup 17, the relative position of the linear drive 2 and the profile can be ensured to be accurate, thereby improving the quality and consistency of the cutting process.

[0035] In this embodiment, there are two lifting square tubes 4 arranged at intervals front and back. By arranging two lifting square tubes 4 at intervals front and back, the length part of the profile can be supported more evenly. Especially for longer or heavier profiles, such a design can effectively disperse the load, reduce the sagging or deformation of the middle part, ensure that the profile remains straight during the lifting process, and improve the cutting accuracy and quality.

[0036] Preferably, a protective plate 7 is provided on the periphery of the bracket 1, and a protective plate 7 is provided on the periphery of the lifting flat plate 3. The protective plate 7 can not only prevent foreign objects from entering the interior of the equipment, reduce mechanical failures caused by collisions or impurity accumulation, but also block flying sparks, cutting debris, etc., protect precision components such as the linear actuator 2 and the lifting flat plate 3 from damage, and extend the service life of the equipment.

[0037] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0038] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" 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 a connection that can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] It can be understood that for those of ordinary skill in the art, equivalent replacements or changes can be made according to the technical solutions and the inventive concept of the present utility model, and all such changes or replacements should fall within the protection scope of the present utility model.

Claims

1. A material lifting mechanism, characterized in that: It includes two brackets arranged on the left and right, a linear drive vertically upwardly arranged on the brackets, and a lifting plate arranged on the output end of the linear drive; at least one transversely extending material lifting square channel is arranged between the two lifting plates, and the two ends of the material lifting square channel are respectively connected to the corresponding lifting plates through docking plates.

2. The material lifting mechanism according to claim 1, characterized in that: A part of the docking plate is welded to the lifting square, and a plurality of elongated holes are opened on the other part. The lifting plate is provided with threaded holes which are the same in number and correspond one to one with the elongated holes, and the fixing screws are connected with the threaded holes after passing through the elongated holes.

3. The material lifting mechanism according to claim 1, characterized in that: The bracket is provided with a guide assembly, which comprises a guide cylinder fixed on the bracket and a guide rod slidably connected to the guide cylinder, and the top end of the guide rod is connected to the bottom surface of the lifting plate through a circular shaft support.

4. The material lifting mechanism according to claim 3, characterized in that: Two guide assemblies are arranged on each bracket, and the two guide assemblies are respectively located on the left and right sides of the linear drive.

5. The material lifting mechanism according to claim 3, characterized in that: The support comprises an upper plate and four branch pipes vertically arranged at the corners of the bottom surface of the upper plate, and the branch pipes between two supports are connected by a connecting pipe.

6. The material lifting mechanism according to claim 5, characterized in that: The bottoms of the two branch pipes on the same side are arranged on the same first bottom plate, and the first bottom plate is provided with a first foot cup.

7. The material lifting mechanism according to claim 6, characterized in that: The guide assembly is arranged between two branch pipes on the same side, and a clearance opening for avoiding the guide rod is opened on the first bottom plate.

8. The material lifting mechanism according to claim 7, characterized in that: The linear drive is a cylinder, and the bottom of the cylinder is arranged on the second bottom plate, and the second bottom plate is provided with a second foot cup at the corner.

9. The material lifting mechanism according to any one of claims 1 to 8, characterized in that: The material lifting square tubes are provided with two and are spaced apart from each other in the front and the back.

10. The material lifting mechanism according to claim 9, characterized in that: A protective plate is provided on the periphery of the bracket, and a protective plate is provided on the periphery of the lifting plate.

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