Automatic bar feeding, cutting, stacking and bundling system

Abstract

The utility model relates to an automatic bar feeding, cutting, stacking and bundling system. Comprising a material pouring table, a chain conveyor, a feeding roller way, a first conveying trolley and a feeding servo shaft mechanism, wherein the material pouring table is used for converting a long bar in a vertical state into a horizontal state; the first conveying trolley is used for carrying the long bar on the chain conveyor to the feeding roller way; the feeding servo shaft mechanism is used for driving the long bar on the feeding roller way; the device comprises a first conveying trolley, a cutting machine used for cutting long bars into a plurality of standard bars, a discharging roller way, a discharging servo shaft mechanism, a second conveying trolley, a laser marking machine used for marking the standard bars, a dense arrangement mechanism used for densely arranging the standard bars, and a stacking output roller way. And the stacking mechanism is used for transferring the densely-arranged standard bars to a stacking output roller way. According to the automatic long bar cutting machine, vertical long bars can be automatically poured, fed, conveyed, automatically and accurately cut, marked, stacked, bundled and weighed, the automation degree is high, the equipment integration degree is high, and the application value is large.

Description

Technical Field

[0001] The utility model relates to a bar automatic loading, cutting, stacking and bundling system, belonging to the technical field of automatic cutting production lines. Background Art

[0002] At present, in the field of long bar cutting, usually each device operates individually. For example, the "bar and pipe cutting production line" disclosed in the publication number CN117754340A is used for cutting operations, and the "copper and aluminum bar profile stacking device" disclosed in the publication number CN210480127U is used for stacking operations after cutting; the equipment integration degree is not high, the functions are few, and it cannot meet the diversified production requirements.

[0003] After retrieval, no production line that integrates functions such as automatic tipping, conveying, automatic precise cutting, chip suction, briquetting, marking, stacking, bundling, and weighing has been found.

[0004] Therefore, the present utility model is proposed. Content of the Utility Model

[0005] In view of the deficiencies of the prior art, the utility model provides a bar automatic loading, cutting, stacking and bundling system. The specific technical solutions are as follows:

[0006] The bar automatic loading, cutting, stacking and bundling system includes a tipping table for changing the vertical long bar into a horizontal state, a chain conveyor for conveying the horizontal long bar, a feeding roller table, a first transfer cart for transferring the long bar on the chain conveyor to the feeding roller table, a feeding servo shaft mechanism for driving the long bar on the feeding roller table, a cutting machine for cutting the long bar into several standard bars, a discharging roller table, a discharging servo shaft mechanism for driving the standard bars on the discharging roller table, a second transfer cart, a laser marking machine for marking the standard bars, a close-packing mechanism for closely packing multiple standard bars, a stacking output roller table, a stacking mechanism for transferring the closely packed standard bars to the stacking output roller table, a bundling machine, and a third transfer cart. A chute for defining the movement trajectory of the lower end of the vertical long bar is arranged on the side of the tipping table close to the chain conveyor.

[0007] For further improvement, the automatic bar loading, cutting, stacking and bundling system further includes a chain protection device for protecting the conveyor chain on the chain conveyor. The chain protection device includes two main discharging racks, brackets, at least four groups of supports, a first driving mechanism for driving the head and tail ends of the two main discharging racks to lift synchronously, a sub-discharging rack adapted to the main discharging rack, and a second driving mechanism for driving the head ends of the two sub-discharging racks to lift synchronously. The main discharging rack is composed of two frame bodies, and a single sub-discharging rack is located between the two frame bodies. The first driving mechanism includes a first hydraulic cylinder, two first rotating shafts respectively below the head and tail ends of the main discharging rack, and a connecting rod located between the two first rotating shafts. The end of the first rotating shaft is rotatably connected to the top of the support. The cylinder seat of the first hydraulic cylinder is fixedly connected with a first mounting seat, the piston rod end of the first hydraulic cylinder is hinged with a first crankshaft, the first crankshaft is fixedly connected with the first rotating shaft, the end of the connecting rod is hinged with a second crankshaft, the second crankshaft is fixedly connected with the first rotating shaft, and both ends of the first rotating shaft are respectively connected with a third crankshaft. The lower part of the main discharging rack is fixedly installed with a first hinge hinged with the third crankshaft. One side of the third crankshaft is provided with a first shaft hole connected to the first rotating shaft, and the other side of the third crankshaft is provided with a second shaft hole adapted to the chain shaft of the first hinge. The upper part of the third crankshaft is of a V-shaped structure, and a jacking part for jacking up the main discharging rack is arranged on the side of the upper part of the third crankshaft close to the first shaft hole. A anti-retreat part adapted to the upper end of the support is arranged at the lower part of the third crankshaft. The tail end of the sub-discharging rack is hinged with the tail end of the main discharging rack, and a baffle block is fixedly installed at the tail end of the main discharging rack. The second driving mechanism includes second hydraulic cylinders corresponding to the sub-discharging racks one by one. A second mounting seat adapted to the second hydraulic cylinder is arranged at the lower part of the main discharging rack. The cylinder seat of the second hydraulic cylinder is hinged with the second mounting seat. A third mounting seat adapted to the second hydraulic cylinder is fixedly installed at the lower part of the sub-discharging rack, and the third mounting seat is hinged with the piston rod end of the second hydraulic cylinder.

[0008] For further improvement, the upper end of the long bar in the vertical state is lifted by a lifting device and moves horizontally along the length direction of the long bar. At the same time, the upper end of the long bar moves downward until the long bar changes to the horizontal state. Before the long bar changes to the horizontal state, two main feeding racks are lifted, and the long bar falls onto the two main feeding racks. Then, the two main feeding racks descend until the long bar falls onto the conveying chain of the chain conveyor. The chain conveyor conveys the long bar to the first conveying trolley, and the first conveying trolley transports the long bar to the feeding roller table. The feeding servo shaft mechanism drives the long bar on the feeding roller table to move horizontally towards the cutting machine. The cutting machine cuts the long bar into several standard bars, and the cut standard bars are driven to the discharging roller table by the discharging servo shaft mechanism. The second conveying trolley is a chain conveying device. The discharging servo shaft mechanism drives the standard bars on the discharging roller table to the second conveying trolley. The standard bars on the second conveying trolley are transported to the laser marking machine for marking, and then transported to the close-packing mechanism. Multiple standard bars are closely packed at the close-packing mechanism. The stacking mechanism transports the closely packed standard bars to the stacking output roller table for stacking. The stacking output roller table transports the stacked standard bars to the bundling machine for bundling. The bundled standard bars are transported to the third conveying trolley, and the third conveying trolley transports the bundled standard bars to the next process.

[0009] For further improvement, the chute includes an arc-shaped groove with an arc-shaped cross-section, a horizontal section located in front of the arc-shaped groove, and a vertical section located at the upper end of the arc-shaped groove. A support roller is fixedly installed at the front end of the horizontal section.

[0010] For further improvement, the first conveying trolley includes a chain conveyor and a lifting platform. The chain conveyor is provided with a driving chain. The lower end of the lifting platform is connected to the upper end of the driving chain. The lifting platform performs a reciprocating horizontal movement driven by the chain conveyor. The interior of the lifting platform is a hollow structure, and a third hydraulic cylinder is installed inside the lifting platform. The end of the telescopic rod of the third hydraulic cylinder is installed with a bar dragging plate.

[0011] Further improvement: The feeding servo shaft mechanism includes a vehicle body, a jaw platform, a third driving mechanism for driving the jaw platform to perform reciprocating translational motion along the length direction of the vehicle body, and a jaw mechanism arranged below the jaw platform. The third driving mechanism includes a first rack fixedly installed on the outer side of the vehicle body, a first gear externally meshing with the first rack, and a first motor for driving the first gear to rotate. The first motor is installed on the jaw platform, and a first guide rail is arranged between the jaw platform and the vehicle body; the jaw mechanism includes two oppositely arranged jaw bodies, a second guide rail is arranged between the jaw body and the jaw platform, and the two jaw bodies perform synchronous opening or closing actions through a gear driving mechanism; an oiling gear is also externally meshed with the outside of the first rack, a connecting plate is installed between the jaw platform and the oiling gear, the oiling gear includes a gear body, the wheel shaft of the gear body is rotatably connected with the connecting plate, the outer periphery of the gear body is provided with helical teeth and tooth grooves, a lubricating oil channel is arranged in the center of the gear body, and a plurality of oil outlet holes are arranged along the radial direction of the gear body between the lubricating oil channel and the tooth grooves; a lubricating oil pumping device communicated with the lubricating oil channel is installed on the jaw platform.

[0012] Further improvement: The close-packed mechanism includes two groups of racks, a movable beam is embedded at the upper end of the rack, the tail end of the movable beam is hinged with the tail of the rack, and a fourth hydraulic cylinder for driving the head end of the movable beam to move up and down is arranged at the head end of the movable beam; cross beams are fixedly connected to the head ends of the two movable beams, an inclined panel is installed above the movable beam on the side close to the head end of the movable beam, and a blocking part is arranged at the upper part of the tail end of the movable beam; a roller group is arranged outside the movable beam, and the roller group is composed of a plurality of rollers connected in series.

[0013] Further improvement: Two sets of palletizing mechanisms are arranged and are oppositely arranged. The palletizing mechanism includes an X-axis translation platform, a Y-axis translation platform, a Z-axis lifting platform, and a material holding plate. The Y-axis translation platform performs reciprocating translational motion along the length direction of the X-axis translation platform under the drive of the X-axis translation platform, the Z-axis lifting platform performs reciprocating translational motion along the width direction of the X-axis translation platform under the drive of the Y-axis translation platform, and the material holding plate performs lifting motion along the height direction of the X-axis translation platform under the drive of the Z-axis lifting platform; a material guiding boss is arranged inside the material holding plate, the material guiding boss includes an inclined groove arranged downward, a convex block is arranged at the lower end of the inclined groove, and a transition groove is arranged between the convex block and the lower end of the inclined groove.

[0014] Further improvement: The palletizing output roller table includes a driving roller, and inclined retaining rollers are respectively arranged on both sides of the driving roller.

[0015] Further improvement: The bar automatic feeding, cutting, palletizing and bundling system further includes:

[0016] A chip suction device is arranged at the cutting machine to suck away the waste chips generated by the cutting of the cutting machine.

[0017] And / or

[0018] A briquetting machine is arranged at the chip suction device. The waste chips generated by cutting are conveyed to the briquetting machine through the chip suction device, and the briquetting machine presses the waste chips into waste chip blocks.

[0019] And / or

[0020] A weighing device is arranged at the third conveying trolley. The bundled standard bars are conveyed to the weighing device through the third conveying trolley for weighing. After weighing, the bundled standard bars are conveyed to the next process through the third conveying trolley.

[0021] Advantages of the present utility model:

[0022] 1. The bar automatic loading, cutting, stacking and bundling system of the present utility model can automatically perform operations such as automatically dumping, loading, conveying, automatically and precisely cutting, marking, stacking, bundling, and weighing of vertical long bars. It has a high degree of automation, a high degree of equipment integration, and great application value.

[0023] 2. The present utility model adopts a double servo-axis mechanism composed of a feeding servo-axis mechanism and a discharging servo-axis mechanism, and can design different feeding, discharging, and cutting processes according to actual needs, reducing the production beat and meeting the diverse production requirements.

[0024] 3. The feeding servo-axis mechanism or the discharging servo-axis mechanism utilizes the cooperation of the first rack and the first gear to accurately control the feeding or discharging size with small error, ensuring the efficiency of automatic cutting.

[0025] 4. The present utility model can also automatically suck away, collect, and briquette the chips during the cutting process, which is convenient for subsequent recycling and reduces the impact on the environment. Description of the Drawings

[0026] Figure 1 It is a schematic structural diagram of the bar automatic loading, cutting, stacking and bundling system of the present utility model;

[0027] Figure 2 It is a schematic structural diagram of the tipping table of the present utility model;

[0028] Figure 3 It is a schematic structural diagram of the chain protection device of the present utility model;

[0029] Figure 4 It is a schematic structural diagram of the first driving mechanism of the present utility model;

[0030] Figure 5Schematic structural diagram of the second driving mechanism of the present utility model;

[0031] Figure 6 Schematic diagram of the chain protection device of the present utility model when viewed from below;

[0032] Figure 7 Schematic structural diagram of the third crankshaft of the present utility model;

[0033] Figure 8 Schematic structural diagram of the first conveying trolley of the present utility model;

[0034] Figure 9 Schematic structural diagram of the feeding servo shaft mechanism of the present utility model;

[0035] Figure 10 Schematic diagram of the feeding servo shaft mechanism of the present utility model when viewed from the side;

[0036] Figure 11 Schematic structural diagram of the third driving mechanism of the present utility model;

[0037] Figure 12 Schematic structural diagram of the oiling gear of the present utility model;

[0038] Figure 13 Internal schematic diagram of the oiling gear of the present utility model;

[0039] Figure 14 Schematic structural diagram of the palletizing output roller table of the present utility model;

[0040] Figure 15 Schematic structural diagram of the close-packing mechanism of the present utility model;

[0041] Figure 16 Schematic diagram of the close-packing mechanism of the present utility model when viewed from the side;

[0042] Figure 17 Schematic structural diagram of the palletizing mechanism of the present utility model. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0044] In the description of the present utility model, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and 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 cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0045] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside 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.

[0046] Embodiment 1

[0047] As Figure 1 shown, the automatic bar feeding, cutting, stacking and bundling system includes an overturning table 16 for changing the vertical long bar into a horizontal state, a chain conveyor 1 for conveying the horizontal long bar, a feeding roller table 4, a first transfer trolley 2 for transporting the long bar on the chain conveyor 1 to the feeding roller table 4, a feeding servo shaft mechanism 3 for driving the long bar on the feeding roller table 4, a cutting machine 5 for cutting the long bar into several standard bars, a discharging roller table 21, a discharging servo shaft mechanism 17 for driving the standard bars on the discharging roller table 21, a second transfer trolley 6, a laser marking machine 15 for marking the standard bars, a close-packing mechanism 12 for closely packing multiple standard bars, a palletizing output roller table 7, a palletizing mechanism 14 for transferring the closely packed standard bars to the palletizing output roller table 7, a bundling machine 8, and a third transfer trolley 9. A chute for defining the movement trajectory of the lower end of the vertical long bar is provided on the side of the overturning table 16 close to the chain conveyor 1.

[0048] As Figure 2 shown, the chute includes an arc-shaped groove 161 with a cross-section in the shape of an arc, a horizontal section 162 located in front of the arc-shaped groove 161, and a vertical section 163 located at the upper end of the arc-shaped groove 161. A support roller 164 is fixedly installed at the front end of the horizontal section 162.

[0049] The upper end of the long bar in the vertical state is lifted by a lifting device such as a gantry crane. A clamp is used to clamp the upper end of the long bar, and a translational movement is carried out along the length direction of the long bar. At the same time, the upper end of the long bar moves downward. During this process, the lower end of the long bar falls to the chute, and under the restriction of the chute, the long bar slowly changes to the horizontal state. Finally, one end of the long bar is lifted by the support roller 164, and the other end is lifted by the two main material racks 101.

[0050] Embodiment 2

[0051] In Embodiment 1, as Figures 3 - 7As shown in the figure, the automatic bar loading, cutting, stacking and bundling system further includes a chain protection device 10 for protecting the conveying chain on the chain conveyor 1. The chain protection device 10 includes two main discharging racks 101, brackets 104, at least four groups of supports 103, a first driving mechanism for driving the head and tail ends of the two main discharging racks 101 to lift synchronously, a secondary discharging rack 102 adapted to the main discharging rack 101, and a second driving mechanism for driving the head ends of the two secondary discharging racks 102 to lift synchronously. The main discharging rack 101 is composed of two frame bodies, and a single secondary discharging rack 102 is located between the two frame bodies. The first driving mechanism includes a first hydraulic cylinder 105, two first rotating shafts 107 respectively located below the head and tail ends of the main discharging rack 101, and a connecting rod 109 located between the two first rotating shafts 107. The end of the first rotating shaft 107 is rotatably connected to the top of the support 103. The cylinder seat of the first hydraulic cylinder 105 is fixedly connected with a first mounting seat 1051. The piston rod end of the first hydraulic cylinder 105 is hinged with a first crankshaft 106. The first crankshaft 106 is fixedly connected with the first rotating shaft 107. The end of the connecting rod 109 is hinged with a second crankshaft 108. The second crankshaft 108 is fixedly connected with the first rotating shaft 107. Both ends of the first rotating shaft 107 are respectively connected with a third crankshaft 1013. A first hinge 1012 hinged with the third crankshaft 1013 is fixedly installed at the lower part of the main discharging rack 101. A first shaft hole 10131 connected to the first rotating shaft 107 is arranged on one side of the third crankshaft 1013. A second shaft hole 10132 adapted to the chain shaft of the first hinge 1012 is arranged on one side of the third crankshaft 1013. The upper part of the third crankshaft 1013 is of a V-shaped structure. A jacking part 10133 for jacking up the main discharging rack 101 is arranged on the upper part of the third crankshaft 1013 close to the first shaft hole 10131. A retaining part 10134 adapted to the upper end of the support 103 is arranged at the lower part of the third crankshaft 1013. The tail end of the secondary discharging rack 102 is hinged with the tail end of the main discharging rack 101. A baffle block 1010 is fixedly installed at the tail end of the main discharging rack 101. The second driving mechanism includes second hydraulic cylinders 1011 corresponding to the secondary discharging racks 102 one by one. A second mounting seat 10111 adapted to the second hydraulic cylinder 1011 is arranged at the lower part of the main discharging rack 101. The cylinder seat of the second hydraulic cylinder 1011 is hinged with the second mounting seat 10111. A third mounting seat 1021 adapted to the second hydraulic cylinder 1011 is fixedly installed at the lower part of the secondary discharging rack 102. The third mounting seat 1021 is hinged with the piston rod end of the second hydraulic cylinder 1011.

[0052] The upper end of the long bar in the vertical state is lifted by a lifting device and moves horizontally along the length direction of the long bar. At the same time, the upper end of the long bar moves downward until the long bar changes to the horizontal state. Before the long bar changes to the horizontal state, two main feeding racks 101 are lifted, and the long bar falls onto the two main feeding racks 101. Then, the two main feeding racks 101 descend until the long bar falls onto the conveying chain of the chain conveyor 1. The chain conveyor 1 conveys the long bar to the first conveying trolley 2, and the first conveying trolley 2 transports the long bar onto the feeding roller table 4. The feeding servo shaft mechanism 3 drives the long bar on the feeding roller table 4 to move horizontally in the direction of the cutting machine 5. The cutting machine 5 cuts the long bar into several standard bars, and the cut standard bars are driven onto the discharging roller table 21 by the discharging servo shaft mechanism 17. The second conveying trolley 6 is a chain conveying device. The discharging servo shaft mechanism 17 drives the standard bars on the discharging roller table 21 onto the second conveying trolley 6. The standard bars on the second conveying trolley 6 are transported to the laser marking machine 15 for marking, and then transported to the close-packing mechanism 12. Multiple standard bars are closely packed at the close-packing mechanism 12. The palletizing mechanism 14 transports the closely packed standard bars to the palletizing output roller table 7 for palletizing. The palletizing output roller table 7 transports the palletized standard bars to the bundling machine 8 for bundling. The bundled standard bars are transported to the third conveying trolley 9, and the third conveying trolley 9 transports the bundled standard bars to the next process.

[0053] In this embodiment, the working principle of the chain protection device 10 is as follows:

[0054] First, before the long bar falls onto the conveying chain of the chain conveyor 1, by starting the first hydraulic cylinder 105, the piston rod of the first hydraulic cylinder 105 extends, and the first crankshaft 106 is used to make the first rotating shaft 107 rotate by a certain angle. When the first rotating shaft 107 rotates, it will drive the third crankshaft 1013 to rotate around the first shaft hole 10131 as the rotation center, and the second shaft hole 10132 will be lifted. Thus, through the cooperation of the first hinge 1012 and the third crankshaft 1013, the tails of the two main feeding racks 101 are synchronously lifted. During the above process, when the first rotating shaft 107 rotates by a certain angle, through the cooperation of the connecting rod 109 and the two second crankshafts 108, the other first rotating shaft 107 is also driven to rotate by the same certain angle. In this way, the heads of the two main feeding racks 101 will be synchronously lifted in the same way as their tails. That is to say, the heads and tails of the two main feeding racks 101 will be synchronously lifted and lowered under the drive of the first drive mechanism, and the driving force for lifting and lowering only relies on a single first hydraulic cylinder 105, which not only saves costs but also has better synchronism.

[0055] Afterwards, when the two main discharging racks 101 are lifted, the vertical long bar slowly changes to a horizontal state and finally falls onto the two main discharging racks 101. The height to which the two main discharging racks 101 are lifted is higher than the height of the conveying chain on the chain conveyor 1. In this way, the conveying chain on the chain conveyor 1 can be protected.

[0056] Finally, the piston rod of the first hydraulic cylinder 105 retracts. After the two main discharging racks 101 slowly descend and fall to the initial position, the height of the initial position of the two main discharging racks 101 is lower than the height of the conveying chain on the chain conveyor 1. In this way, the long bar can fall onto the conveying chain of the chain conveyor 1. By starting the chain conveyor 1, the long bar can be conveyed through the conveying chain. At the same time, the main discharging rack 101 at this time will not interfere with the conveying of the chain conveyor 1. During this process, it is possible to avoid the long bar hitting the conveying chain violently and also avoid the damage caused by the excessive tension of the conveying chain due to the violent shaking of the long bar. This device has a good protective effect on the conveying chain of the chain conveyor 1.

[0057] In addition, when the long bar falls onto the conveying chain of the chain conveyor 1, if the length direction of the long bar is not perpendicular to the advancing direction of the conveying chain, this is not conducive to conveying, and accidents are likely to occur. Moreover, it is not conducive to the subsequent equipment to accurately carry the long bar. At this time, it is necessary to start the second hydraulic cylinder 1011. The piston rod of the second hydraulic cylinder 1011 extends. Due to the installation position relationship between the third mounting seat 1021 and the second hydraulic cylinder 1011, the head end of the auxiliary discharging rack 102 is lifted. The tail end of the auxiliary discharging rack 102 is fixedly hinged. Therefore, the auxiliary discharging rack 102 forms an inclined plane rack. Since the auxiliary discharging rack 102 is initially hidden between the two frames, at the moment when the head end of the auxiliary discharging rack 102 is lifted, the long bar can be aligned and fall onto the baffle block 1010 under the action of gravity, and multiple long bars can also be closely arranged.

[0058] To ensure safety and stability, when the main discharging rack 101 returns to the initial position, the anti-retreat part 10134 just falls onto the upper end of the support 103. At this time, the upper end of the support 103 supports the anti-retreat part 10134 to prevent it from falling further.

[0059] The upper part of the third crankshaft 1013 is a V-shaped structure to highlight the jacking part 10133 and avoid interference during the movement of the jacking part 10133. When the main discharging rack 101 is lifted to the highest point, the jacking part 10133 can just abut against the main discharging rack 101 to improve stability.

[0060] Embodiment 3

[0061] In Embodiment 2, as Figure 8As shown, the first transfer trolley 2 includes a chain conveyor 201 and a lifting platform 23. The chain conveyor 201 is provided with a driving chain 22. The lower end of the lifting platform 23 is connected to the upper end of the driving chain 22. The lifting platform 23 performs a reciprocating translational motion under the drive of the chain conveyor 201. The interior of the lifting platform 23 has a hollow structure, and a third hydraulic cylinder 24 is installed inside the lifting platform 23. The end of the telescopic rod of the third hydraulic cylinder 24 is installed with a drag bar plate 25.

[0062] The upper end of the drag bar plate 25 can be a V-shaped structure, a flat plate structure, or an inclined plate structure, which can be set according to needs. For example, in the first transfer trolley 2, it is preferably a V-shaped structure, which can lift long bars.

[0063] Start the chain conveyor 201 so that the lifting platform 23 translates to near the end of the chain conveyor 1. At this time, although the long bar is at the end of the chain conveyor 1, the drag bar plate 25 is also below the long bar at this time. Then, start the third hydraulic cylinder 24, and the piston rod of the third hydraulic cylinder 24 extends, so that the drag bar plate 25 moves upward until the long bar on the chain conveyor 1 is lifted until it leaves the end of the chain conveyor 1. Then, start the chain conveyor 201, and the driving chain 22 drives the lifting platform 23 to translate in the direction of the feeding roller table 4, and finally moves directly above the feeding roller table 4. The driving chain 22 stops advancing. Finally, the piston rod of the third hydraulic cylinder 24 retracts, and the drag bar plate 25 holds the long bar until the long bar falls onto the rollers of the feeding roller table 4. The drag bar plate 25 continues to move downward, and the driving chain 22 drives the lifting platform 23 to move away from the feeding roller table 4 until the lifting platform 23 returns to its initial position.

[0064] Embodiment 4

[0065] In Embodiment 2, as Figures 9 - 13As shown in the figure, the feeding servo shaft mechanism 3 includes a vehicle body 31, a jaw platform 33, a third driving mechanism for driving the jaw platform 33 to perform translational reciprocating motion along the length direction of the vehicle body 31, and a jaw mechanism 36 arranged below the jaw platform 33. The third driving mechanism includes a first rack 32 fixedly installed on the outer side of the vehicle body 31, a first gear 34 externally meshed with the first rack 32, and a first motor 35 for driving the first gear 34 to rotate. The first motor 35 is installed on the jaw platform 33, and a first guide rail 311 is arranged between the jaw platform 33 and the vehicle body 31. The jaw mechanism 36 includes two relatively arranged jaw bodies 361. A second guide rail 362 is arranged between the jaw body 361 and the jaw platform 33. The two jaw bodies 361 perform synchronous opening or closing actions through a gear driving mechanism arranged therebetween. An oiling gear 37 is also externally meshed with the outside of the first rack 32. A connecting plate 38 is installed between the jaw platform 33 and the oiling gear 37. The oiling gear 37 includes a gear body 371. The axle of the gear body 371 is rotatably connected to the connecting plate 38. The outer periphery of the gear body 371 is provided with helical teeth 372 and tooth grooves 373. A lubricating oil channel 375 is arranged in the center of the gear body 371. A plurality of oil outlet holes 374 are arranged along the radial direction of the gear body 371 between the lubricating oil channel 375 and the tooth grooves 373. A lubricating oil pumping device communicated with the lubricating oil channel 375 is installed on the jaw platform 33.

[0066] In this embodiment, through the double servo shaft mechanism (the feeding servo shaft mechanism 3 and the discharging servo shaft mechanism 17), different feeding, discharging, and cutting processes can be designed according to actual needs to meet the diversified production requirements.

[0067] The structure of the discharging servo shaft mechanism 17 is the same as that of the feeding servo shaft mechanism 3. Taking the working principle of the feeding servo shaft mechanism 3 as an example:

[0068] The first motor 35 drives the first gear 34 to rotate. By using the first rack 32, the jaw platform 33 can perform translational motion along the direction of the first rack 32. By precisely setting parameters such as the number of teeth on the first rack 32, the advancing dimension of the jaw platform 33 can be precisely controlled to meet the dimension requirements for cutting. In addition, through the gear driving mechanism, the two jaw bodies 361 are driven to perform synchronous opening or closing actions, so that the jaw mechanism 36 can clamp long bars or standard bars.

[0069] To ensure accuracy, the first rack 32 must be kept lubricated, and lubricating oil needs to be applied regularly. The lubricating oil pumping device includes an oil storage barrel storing lubricating oil and an oil pump.

[0070] The lubricating oil in the oil storage barrel is regularly and quantitatively input into the lubricating oil passage 375 through an oil pump, and then injected into the tooth grooves 373 through the oil outlet holes 374. During the translational movement of the upper oil gear 37 along with the jaw platform 33, the lubricating oil in the tooth grooves 373 can lubricate the first rack 32.

[0071] Embodiment 5

[0072] In Embodiment 4, for better lubrication, while saving lubricating oil and also preventing excessive lubricating oil from dripping; the lubrication operation is carried out through an oil pump only during the relative movement between the first gear 34 and the first rack 32; during this period, the oil outlet pressure of the oil pump changes in a pulsed manner, and the curve of the oil outlet pressure of the oil pump versus time is a bell-shaped wave structure; the helix angle of the helical tooth 372 is 12°.

[0073] The oil outlet hole 374 is arranged to be inclined upward. The end of the oil outlet hole 374 located in the tooth groove 373 is the end of the oil outlet hole 374. The end of the oil outlet hole 374 is higher than the head end of the oil outlet hole 374. The included angle between the axis of the oil outlet hole 374 and the end face of the gear body 371 is 2°.

[0074] First of all, compared with straight teeth, using the upper oil gear 37 to lubricate is likely to cause excessive lubricating oil in a local area of the first rack 32, resulting in dripping of lubricating oil. However, if a helical tooth 372 is used, the phenomenon of dripping of lubricating oil is much improved. Generally, the helix angle of the helical tooth 372 is between 8° and 15°. If the helix angle is too small, it is found that more lubricating oil drips; if the helix angle is too large, it is found that the transmission resistance increases significantly. After many tests, preferably, the helix angle of the helical tooth 372 is 12°.

[0075] Generally, the lubricating oil will be basically applied after the oiling gear 37 is rubbed back and forth on the first rack 32 for several times; the shorter the time for the oiling gear 37 to apply the oil to the first rack 32, the less likely it is for the lubricating oil to drip. Therefore, on the basis that the helix angle of the helical teeth 372 is 12°, in order to be able to apply enough oil in a single application within the shortest possible application time and to avoid the lubricating oil from dripping due to excessive lubricating oil, the oil outlet pressure of the oil pump must be changed in a pulsed manner, and the curve of the oil outlet pressure and time of the oil pump is a bell-shaped wave structure; after a large number of tests, it is found that if the oil outlet pressure and time curve of the oil pump is a rectangular wave, a triangular wave, a step wave, a sharp pulse wave, or a trapezoidal wave, the lubricating oil will drip, but to different degrees. Since the oil outlet pressure of the oil pump is non-constant, it can be controlled by a frequency converter. Therefore, the axial direction of the oil outlet hole 374 and the end face of the gear body 371 are not parallel, but must form a certain angle. Preferably, the angle is 2°; if the angle is too large, the oil outlet pressure of the oil pump must also be too large, and it is easy to cause "lubricating oil spraying phenomenon", resulting in a large amount of lubricating oil dripping; if the angle is too small, when the oil is no longer sprayed, the oil in the pipeline is easily brushed out in large quantities under the strong inertia during the movement, thereby causing a large amount of lubricating oil dripping; therefore, the above measures are all to ensure that there is a sufficient and continuous lubricating oil film on the first rack 32 in a short time, and at the same time, to avoid too much lubricating oil at one time causing the lubricating oil on the first rack 32 to drip downward, thereby causing waste and pollution.

[0076] Example 6

[0077] In Example 2, Figure 15 , 16 As shown, the close-packed mechanism 12 includes two groups of frames 121, a movable beam 122 is embedded in the upper end of the frame 121, the tail end of the movable beam 122 is hinged to the tail of the frame 121, and the head end of the movable beam 122 is provided with a fourth hydraulic cylinder for driving the head end of the movable beam 122 to move up and down; the head ends of the two movable beams 122 are fixedly connected with a cross beam 125, and an inclined panel 123 is installed on the upper side of the movable beam 122 close to the head end of the movable beam 122, and a stop portion 126 is provided on the upper part of the tail end of the movable beam 122; a roller group is provided on the outer side of the movable beam 122, and the roller group is composed of a plurality of rollers 124 connected in series.

[0078] When the standard bars fall onto the inclined roller group through the inclined plate 123, they finally stop at the stop 126 and use their own weight to complete the dense arrangement; at this time, the fourth hydraulic cylinder can be used to drive the head end of the movable beam 122 to lift up, further improving the dense arrangement effect. In the early stage, in order to prevent the head end of the movable beam 122 that is too high from hindering the standard bars from rolling in, the head end of the movable beam 122 can be driven by the fourth hydraulic cylinder to move downward to avoid interference.

[0079] Example 7

[0080] In Example 6, as Figure 17 shown, two sets of the palletizing mechanism 14 are provided and arranged oppositely. The palletizing mechanism 14 includes an X-axis translation platform 141, a Y-axis translation platform 142, a Z-axis lifting platform 143, and a material holding plate 144. The Y-axis translation platform 142 makes a reciprocating translation motion along the length direction of the X-axis translation platform 141 driven by the X-axis translation platform 141. The Z-axis lifting platform 143 makes a reciprocating translation motion along the width direction of the X-axis translation platform 141 driven by the Y-axis translation platform 142. The material holding plate 144 makes a lifting motion along the height direction of the X-axis translation platform 141 driven by the Z-axis lifting platform 143. A material guiding boss is arranged on the inner side of the material holding plate 144. The material guiding boss includes an inclined groove 145 arranged downward obliquely. A convex block 146 is arranged at the lower end of the inclined groove 145. A transition groove is arranged between the convex block 146 and the lower end of the inclined groove 145.

[0081] The length direction of the X-axis translation platform 141 is the X-axis, the width direction of the X-axis translation platform 141 is the Y-axis, and the height direction of the X-axis translation platform 141 is the Z-axis.

[0082] After the multi-standard bars are densely arranged into one layer by the dense arrangement mechanism 12, at this time, the material holding plate 144 is continuously adjusted by the X-axis translation platform 141, the Y-axis translation platform 142, and the Z-axis lifting platform 143, so that the two material holding plates 144 can move relatively and finally clamp the standard bars densely arranged into one layer. At this time, if the two ends of the standard bars densely arranged into one layer are not aligned, they can also be clamped by the two material holding plates 144 to complete the alignment operation. During the alignment process, the arranged rollers 124 can significantly reduce the resistance.

[0083] The material guiding boss of the material holding plate 144 can lift the ends of the standard bars densely arranged into one layer and prevent them from falling.

[0084] Example 8

[0085] In Example 7, as Figure 14 shown, the palletizing output roller table 7 includes a driving roller 71, and inclined retaining rollers 72 are respectively arranged on both sides of the driving roller 71.

[0086] The palletizing mechanism 14 can only carry the standard bars densely arranged into one layer at a time. After multiple times like this, the densely arranged standard bars can be carried to be palletized between the two retaining rollers 72. The number of layers of the standard bars palletized between the two retaining rollers 72 and the number of each layer can be set according to the actual situation. The palletized standard bars advance driven by the driving roller 71.

[0087] Example 9

[0088] In Embodiment 2, the automatic loading, cutting, stacking and bundling system for bars further includes a chip suction device 18, which is arranged at the cutting machine 5 and used to suck away the waste chips generated by the cutting of the cutting machine 5, facilitating subsequent centralized treatment.

[0089] The automatic loading, cutting, stacking and bundling system for bars further includes a briquetting machine 13, which is arranged at the chip suction device 18. The chip suction device 18 conveys the waste chips generated by cutting to the briquetting machine 13, and the briquetting machine 13 presses the waste chips into waste chip blocks, facilitating subsequent treatment.

[0090] The automatic loading, cutting, stacking and bundling system for bars further includes a weighing device 19, which is arranged on the third conveying trolley 9. The third conveying trolley 9 conveys the bundled standard bars to the weighing device 19 for weighing. After weighing, the third conveying trolley 9 conveys the bundled standard bars to the next process.

[0091] Among them, in some embodiments, the principle of the third conveying trolley 9 is similar to or the same as that of the second conveying trolley 6; for example, a movable gripper for dragging the bundled standard bars onto the second conveying trolley 6 can be further arranged on one side of the third conveying trolley 9.

[0092] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. Automatic bar feeding, cutting, stacking and bundling system, characterized by: The invention comprises a dumping table (16) for converting a long bar in a vertical state into a horizontal state, a chain conveyor (1) for conveying the long bar in a horizontal state, a feed roller (4), a first conveying trolley (2) for conveying the long bar on the chain conveyor (1) to the feed roller (4), a feed servo axis mechanism (3) for driving the long bar on the feed roller (4), a cutting machine (5) for cutting the long bar into a plurality of standard bars, a discharge roller (21), and a first conveying trolley (2) for driving the standard bars on the discharge roller (21). A discharging servo axis mechanism (17), a second conveying trolley (6), a laser marking machine (15) for marking standard bars, a close packing mechanism (12) for closely packing a plurality of standard bars, a stacking output roller conveyor (7), a stacking mechanism (14) for transferring the closely packed standard bars to the stacking output roller conveyor (7), a baler (8), and a third conveying trolley (9); a slide groove for limiting the lower end movement trajectory of the long bars in a vertical state is provided on the side of the unloading platform (16) close to the chain conveyor (1).

2. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The invention also comprises a chain protection device (10) for protecting a conveying chain on a chain conveyor (1), wherein the chain protection device (10) comprises two main unloading racks (101), a bracket (104), at least four sets of supports (103), a first driving mechanism for driving the two main unloading racks (101) to rise and fall synchronously at both ends, a secondary unloading rack (102) adapted to the main unloading rack (101), and a second driving mechanism for driving the two secondary unloading racks (102) to rise and fall synchronously at their front and rear ends, wherein the main unloading rack (101) is composed of two rack bodies, and a single secondary unloading rack (102) is located between the two rack bodies; the first driving mechanism comprises a first hydraulic cylinder (105), two first hydraulic cylinders (106) respectively disposed below the front and rear ends of the main unloading racks (101); A rotating shaft (107), a connecting rod (109) located between the two first rotating shafts (107), the end of the first rotating shaft (107) is rotatably connected to the top of the support (103), the cylinder seat of the first hydraulic cylinder (105) is fixedly connected to the first mounting seat (1051), the end of the piston rod of the first hydraulic cylinder (105) is hinged to the first crankshaft (106), the first crankshaft (106) is fixedly connected to the first rotating shaft (107), the end of the connecting rod (109) is hinged to the second crankshaft (108), the second crankshaft (108) is fixedly connected to the first rotating shaft (107), the two ends of the first rotating shaft (107) are respectively connected to the third crankshaft (1013), the lower part of the main unloading rack (101) is fixedly mounted A first hinge (1012) is provided which is hinged to a third crankshaft (1013); a first shaft hole (10131) connected to a first rotating shaft (107) is provided on one side of the third crankshaft (1013); a second shaft hole (10132) matched with a chain shaft of the first hinge (1012) is provided on one side of the third crankshaft (1013); the upper part of the third crankshaft (1013) is a V-shaped structure; a lifting part (10133) for lifting the main unloading rack (101) is provided on the side of the upper part of the third crankshaft (1013) close to the first shaft hole (10131); a stopper part (10134) matched with the upper end of the support (103) is provided on the lower part of the third crankshaft (1013); the auxiliary unloading rack The tail end of the auxiliary unloading rack (102) is hinged to the tail end of the main unloading rack (101), and a material stop block (1010) is fixedly installed at the tail end of the main unloading rack (101); the second driving mechanism includes a second hydraulic cylinder (1011) corresponding to the auxiliary unloading rack (102), a second mounting seat (10111) adapted to the second hydraulic cylinder (1011) is arranged at the lower part of the main unloading rack (101), the cylinder seat of the second hydraulic cylinder (1011) is hinged to the second mounting seat (10111), and a third mounting seat (1021) adapted to the second hydraulic cylinder (1011) is fixedly installed at the lower part of the auxiliary unloading rack (102), and the third mounting seat (1021) is hinged to the end of the piston rod of the second hydraulic cylinder (1011).

3. The bar material automatic feeding, cutting, stacking and bundling system according to claim 2 is characterized by: The upper end of the vertical long bar is lifted by the lifting device and moves in translation along the length direction of the long bar. At the same time, the upper end of the long bar moves downward until the long bar is transformed into a horizontal state. Before the long bar is transformed into a horizontal state, the two main unloading racks (101) are lifted and the long bar falls onto the two main unloading racks (101). Afterwards, the two main unloading racks (101) are lowered until the long bar falls onto the conveying chain of the chain conveyor (1). The chain conveyor (1) conveys the long bar to the first conveying trolley (2). The first conveying trolley (2) transports the long bar to the feed roller (4). The feed servo shaft mechanism (3) drives the long bar on the feed roller (4) to move in translation toward the direction of the cutting machine (5). The cutting machine (5) cuts the long bar into a plurality of standard bars. The discharge servo shaft mechanism (3) The mechanism (17) drives the cut standard bars to the discharge roller (21); the second conveying trolley (6) is a chain conveying device, and the standard bars on the discharge roller (21) are driven to the second conveying trolley (6) through the discharge servo axis mechanism (17); the standard bars on the second conveying trolley (6) are conveyed to the laser marking machine (15) for marking, and then conveyed to the close arrangement mechanism (12), and a plurality of standard bars are closely arranged at the close arrangement mechanism (12); the stacking mechanism (14) transports the closely arranged standard bars to the stacking output roller (7) for stacking; the stacking output roller (7) transports the stacked standard bars to the baling machine (8) for bundling; the bundled standard bars are conveyed to the third conveying trolley (9), and the bundled standard bars are conveyed to the next process by the third conveying trolley (9).

4. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The slide groove comprises an arc-shaped groove (161) with an arc-shaped cross section, a horizontal section (162) located at the front side of the arc-shaped groove (161), and a vertical section (163) located at the upper end of the arc-shaped groove (161), and a support roller (164) is fixedly installed at the front end of the horizontal section (162).

5. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The first conveying trolley (2) comprises a chain conveyor (201) and a lifting platform (23); the chain conveyor (201) is provided with a transmission chain (22); the lower end of the lifting platform (23) is connected to the upper end of the transmission chain (22); the lifting platform (23) performs reciprocating translational motion under the drive of the chain conveyor (201); the interior of the lifting platform (23) is a hollow structure; a third hydraulic cylinder (24) is installed inside the lifting platform (23); a drag rod plate (25) is installed at the end of the telescopic rod of the third hydraulic cylinder (24).

6. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The feeding servo axis mechanism (3) comprises a vehicle body (31), a clamping platform (33), a third driving mechanism for driving the clamping platform (33) to perform translational reciprocating motion along the length direction of the vehicle body (31), and a clamping mechanism (36) arranged at the lower part of the clamping platform (33), wherein the third driving mechanism comprises a first rack (32) fixedly mounted on the outer side of the vehicle body (31), a first gear (34) meshing with the outer side of the first rack (32), and a first motor (35) for driving the first gear (34) to rotate, wherein the first motor (35) is mounted on the clamping platform (33), and a first guide rail (311) is arranged between the clamping platform (33) and the vehicle body (31); the clamping mechanism (36) comprises two claw bodies (361) arranged opposite to each other, and a second guide rail (362) is arranged between the claw body (361) and the clamping platform (33). ), the two claw bodies (361) are synchronously opened or closed by setting a gear drive mechanism; the first rack (32) is also externally meshed with an oiling gear (37), a connecting plate (38) is installed between the clamping claw platform (33) and the oiling gear (37), the oiling gear (37) includes a gear body (371), the axle of the gear body (371) is rotatably connected to the connecting plate (38), the outer periphery of the gear body (371) is provided with helical teeth (372) and tooth grooves (373), a lubricating oil channel (375) is provided in the center of the gear body (371), and a plurality of oil outlet holes (374) are provided between the lubricating oil channel (375) and the tooth grooves (373) along the radial direction of the gear body (371); a lubricating oil pumping device connected to the lubricating oil channel (375) is installed on the clamping claw platform (33).

7. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The close-packed mechanism (12) comprises two sets of frames (121), the upper ends of the frames (121) are embedded with movable beams (122), the rear ends of the movable beams (122) are hinged to the rear parts of the frames (121), and the head ends of the movable beams (122) are provided with fourth hydraulic cylinders for driving the head ends of the movable beams (122) to move up and down; the head ends of the two movable beams (122) are fixedly connected with cross beams (125), the upper sides of the movable beams (122) close to the head ends of the movable beams (122) are provided with inclined panels (123), and the upper part of the tail ends of the movable beams (122) is provided with stoppers (126); and the outer sides of the movable beams (122) are provided with roller groups, and the roller groups are composed of a plurality of rollers (124) connected in series.

8. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The stacking mechanism (14) is provided with two groups and is arranged opposite to each other. The stacking mechanism (14) comprises an X-axis translation platform (141), a Y-axis translation platform (142), a Z-axis lifting platform (143), and a material holding plate (144). The Y-axis translation platform (142) performs translational reciprocating motion along the length direction of the X-axis translation platform (141) under the drive of the X-axis translation platform (141), and the Z-axis lifting platform (143) performs translational reciprocating motion along the length direction of the X-axis translation platform (141) under the drive of the Y-axis translation platform (142). The material holding plate (144) performs translational reciprocating motion in the width direction of the translation platform (141), and the material holding plate (144) performs lifting motion along the height direction of the X-axis translation platform (141) under the drive of the Z-axis lifting platform (143); a material guiding boss is arranged on the inner side of the material holding plate (144), and the material guiding boss includes an inclined groove (145) arranged to be inclined downward, a protrusion (146) is arranged at the lower end of the inclined groove (145), and a transition groove is arranged between the protrusion (146) and the lower end of the inclined groove (145).

9. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1 is characterized by: The stacking output roller conveyor (7) comprises a driving roller (71), and inclined stop rollers (72) are respectively arranged on both sides of the driving roller (71).

10. The bar material automatic feeding, cutting, stacking and bundling system according to claim 1, characterized in that: Also includes: A scrap suction device (18) is arranged at the cutting machine (5) and is used to suck away scraps generated by the cutting machine (5); and / or, The briquetting machine (13) is arranged at the chip suction device (18), and waste chips generated by cutting are transported to the briquetting machine (13) through the chip suction device (18), and the briquetting machine (13) presses the waste chips into waste chip blocks; and / or, The weighing device (19) is arranged at the third conveying trolley (9). The bundled standard bars are conveyed to the weighing device (19) by the third conveying trolley (9) for weighing. After the weighing is completed, the bundled standard bars are conveyed to the next process by the third conveying trolley (9).

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