Tray feeding and recycling system and composite forming machine

Abstract

The invention relates to a tray feeding and recycling system and a composite forming machine. The tray feeding and recycling system comprises an AGV lifting forklift, a double-layer conveying line and a lifting conveying line, the lifting conveying line is in butt joint with the upper layer to take away trays loaded with materials on the upper layer when ascending to the height of the upper layer of the double-layer conveying line, and is in butt joint with the lower layer of the double-layer conveying line to convey empty trays to the lower layer when descending to the height of the lower layer of the double-layer conveying line, and the AGV lifting forklift is used for supplying the trays loaded with the materials and recycling the empty trays. The double-layer conveying line plays a buffering role. Compared with the prior art, the invention has the advantages of high space utilization rate and the like.

Description

Technical Field

[0001] The invention relates to a discrete buffer feeding system, in particular to a tray feeding and recovery system and a composite molding machine. Background Art

[0002] In the production process of composite molding machines, manual feeding is currently often used to feed raw materials. However, this method has the following problems:

[0003] a) Manual feeding requires a lot of human resources, is labor-intensive and inefficient;

[0004] b) Manual feeding is prone to misoperation and inaccurate feeding amount, which affects production stability and product quality.

[0005] Some prior arts provide automated feeding solutions. For example, Chinese patent CN113581818A discloses a conveyor line having a loading position and a unloading position. The conveyor line includes a loading line and a return line. The loading line is used to transport pallets and materials from the loading position to the unloading position, and the return line is used to transport empty pallets from the unloading position back to the loading position. Both the loading line and the return line include a ground part and an aerial part located at both ends. The conveyor line includes a bracket for supporting the aerial part. The aerial parts of the loading line and the return line extend in parallel. The conveyor line also includes an elevator, which is arranged at the intersection of the ground part and the aerial part to realize the lifting and lowering of pallets and materials. The elevator is provided with a conveying unit for realizing material conveying. The conveyor line also includes a transfer mechanism, which is arranged at the unloading position of the conveyor line, and the transfer mechanism is used to transfer the empty pallet after unloading to the return line.

[0006] However, the above-mentioned conveyor lines take up too much space, which will cause the various parts of the factory to be divided and cannot meet the needs of discrete distributed points for feeding. Summary of the invention

[0007] The purpose of the present invention is to provide a pallet feeding and recovery system and a composite molding machine, which adopts AGV lifting forklift to transmit pallets, so that multiple discrete workstations are connected through point-to-point AGV lifting forklifts, and there is no need to arrange tracks, thereby reducing the dividing belts in the plane space, and the overall layout can be more compact. Combined with the double-layer conveyor line, a cache is provided, thereby reducing the number of AGV lifting forklifts. On the one hand, it reduces costs, and on the other hand, it ensures that the production rhythm of material work is not affected by the feeding of AGV lifting forklifts.

[0008] The purpose of the present invention can be achieved by the following technical solutions:

[0009] A pallet feeding and recycling system for discrete feeding, comprising an AGV lifting forklift, and a double-layer conveyor line and a lifting conveyor line arranged in front and behind;

[0010] The double-layer conveyor line includes a first conveyor unit and a second conveyor unit with fixed heights, the first conveyor unit is located below the second conveyor unit, the lifting conveyor line includes a lifting mechanism and a third conveyor unit arranged on the lifting mechanism, the first conveyor unit includes a first guide rail and a feeding drive assembly, the second conveyor unit includes a second guide rail and a discharging drive assembly, and the third conveyor unit includes a third guide rail and a third drive assembly;

[0011] The axes of the first guide rail, the second guide rail and the third guide rail are all arranged in parallel, and the third guide rail is connected with the first guide rail when it is raised to the height of the first guide rail by the lifting mechanism, and is connected with the second guide rail when it is lowered to the height of the second guide rail by the lifting mechanism.

[0012] After the third guide rail is docked with the first guide rail, the feeding drive assembly drives the pallet loaded with materials to move along the first guide rail to the third guide rail, and the pallet loaded with materials is completely located on the third guide rail under the drive of the third drive assembly, the third guide rail is docked with the second guide rail, the third drive assembly drives the empty pallet to move along the third guide rail to the second guide rail, and the empty pallet is completely located on the second guide rail under the drive of the discharging drive assembly;

[0013] The AGV lifting forklift is used to transport the pallet loaded with materials to the double-layer conveyor line, and with the cooperation of the feeding drive component, the pallet loaded with materials is completely located in the first guide rail, and with the cooperation of the discharging drive component, the empty pallet located on the second guide rail is removed and transported to the empty pallet recovery station.

[0014] The double-layer conveying line and the lifting conveying line are both fixed at the material using station.

[0015] The first guide rail, the second guide rail and the third guide rail are equal in length.

[0016] The lifting mechanism includes a base frame, a lifting motor, a lifting transmission module and a scissors-fork lifting platform. The bottom of the scissors-fork lifting platform is rotatably connected to the base frame, and the top is rotatably connected to the bottom end of the third guide rail. The output end of the lifting motor is connected to the scissors-fork lifting platform through the lifting transmission module to drive the scissors-fork lifting platform to lift.

[0017] The base frame is a rectangular frame on which a plurality of buffer units are arranged, and the buffer units include a buffer shell, a buffer spring and a buffer rod. The buffer spring is located in the buffer shell, one end of the buffer rod is inserted into the buffer shell, and the other end is provided with a buffer pad. One end of the buffer spring is connected to the upper surface of the buffer shell, and the other end is connected to the end of the buffer rod inserted into the buffer shell, and the projection of the buffer rod on the horizontal plane is located within the projection area of ​​the third guide rail on the horizontal plane.

[0018] There are four buffer units in total.

[0019] The third driving assembly includes a third driving motor and a third transmission module, and the third driving motor is fixed on the third guide rail.

[0020] The double-layer conveyor line also includes an ascending signal trigger and a descending signal trigger. The ascending signal trigger is arranged on one end of the first guide rail facing the lifting conveyor line, and the descending signal trigger is arranged on one end of the second guide rail facing the lifting conveyor line.

[0021] The end where the double-layer conveyor line and the AGV lifting forklift are connected is located at an end far away from the lifting conveyor line.

[0022] A composite molding machine also includes the tray feeding and recycling system as mentioned above.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. Use AGV forklifts to transport pallets, so that multiple discrete workstations are connected through point-to-point AGV forklifts. There is no need to lay tracks, thereby reducing the dividing belts in the plane space. The overall layout can be more compact. Combined with the double-layer conveyor line, a cache is provided, thereby reducing the number of AGV forklifts. On the one hand, it reduces costs, and on the other hand, it ensures that the production rhythm of material work is not affected by the feeding of AGV forklifts.

[0025] 2. Improve the recycling rate of empty pallets: The recycling of empty pallets is one of the functions of the device. Through the recycling operation of the AGV lifting forklift, the empty pallets can be effectively collected and recycled, which improves the recycling rate of empty pallets and reduces the waste of resources.

[0026] 3. Through the design of double-layer conveyor line, continuous and sufficient material supply can be achieved to ensure the stability of the production process of the composite molding machine and avoid problems such as shutdown due to material supply interruption.

[0027] 4. Equipped with a control system for comprehensive monitoring and control, it can sense the material supply and empty pallet recovery in real time, ensure the stability of material supply and the efficiency of recovery, and provide remote monitoring and operation functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the present invention;

[0029] Figure 2 It is a partial schematic diagram of the double-layer conveyor line and the lifting conveyor line;

[0030] Figure 3 A schematic diagram of the state of a pallet loaded with materials being supplied;

[0031] Figure 4 This is a schematic diagram of normal production status;

[0032] Figure 5 It is a schematic diagram of the empty tray discharge state;

[0033] Among them: 1. lifting conveyor line, 2. double-layer conveyor line, 3. pallet loaded with materials, 4. empty pallet, 1-1. base frame, 1-2. third guide rail, 1-3. scissor fork lifting platform, 1-4. lifting motor, 1-5. third motor, 1-6. buffer unit, 2-1. first guide rail, 2-2. second guide rail, 2-3. feeding drive motor, 2-4. discharging drive motor, 2-5. rising signal trigger, 2-6. falling signal trigger. DETAILED DESCRIPTION

[0034] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. This embodiment is implemented based on the technical solution of the present invention, and provides a detailed implementation method and specific operation process, but the protection scope of the present invention is not limited to the following embodiments.

[0035] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0036] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "proximal", "distal", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance. Physical quantities in formulas, if not separately marked, should be understood as basic quantities of the base units of the International System of Units, or derived quantities derived from the basic quantities through mathematical operations such as multiplication, division, differentiation or integration.

[0037] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0038] In the description of the present invention, it is also necessary to explain 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 or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0040] A tray feeding and recovery system for discrete feeding, such as Figure 1 As shown, it includes an AGV lifting forklift, and a double-layer conveyor line 2 and a lifting conveyor line 1 arranged in front and behind;

[0041] like Figure 2 As shown, the double-layer conveyor line 2 includes a first conveyor unit and a second conveyor unit with fixed heights, the first conveyor unit is located below the second conveyor unit, the lifting conveyor line 1 includes a lifting mechanism and a third conveyor unit arranged on the lifting mechanism, the first conveyor unit includes a first guide rail 2-1 and a feeding drive assembly, the second conveyor unit includes a second guide rail 2-2 and a discharging drive assembly, and the third conveyor unit includes a third guide rail 1-2 and a third drive assembly;

[0042] The axes of the first guide rail 2-1, the second guide rail 2-2 and the third guide rail 1-2 are all arranged in parallel, and the third guide rail 1-2 is connected to the first guide rail 2-1 when it is raised to the height of the first guide rail 2-1 by the lifting mechanism, and is connected to the second guide rail 2-2 when it is lowered to the height of the second guide rail 2-2 by the lifting mechanism.

[0043] After the third guide rail 1-2 is docked with the first guide rail 2-1, the feeding drive assembly drives the tray carrying the material to move along the first guide rail 2-1 to the third guide rail 1-2, and the tray carrying the material is completely located on the third guide rail 1-2 under the drive of the third drive assembly. The third guide rail 1-2 is docked with the second guide rail 2-2, and the third drive assembly drives the empty tray 4 to move along the third guide rail 1-2 to the second guide rail 2-2, and the empty tray 4 is completely located on the second guide rail 2-2 under the drive of the discharge drive assembly;

[0044] The AGV lifting forklift is used to transport the pallet loaded with materials to the double-layer conveyor line 2, and with the cooperation of the feeding drive component, the pallet loaded with materials is completely located in the first guide rail 2-1, and with the cooperation of the discharging drive component, the empty pallet 4 located on the second guide rail 2-2 is removed and transported to the empty pallet 4 recovery station.

[0045] AGV forklifts are used to transport pallets, so that multiple discrete workstations are connected through point-to-point AGV forklifts. There is no need to lay tracks, thereby reducing the dividing belts in the plane space. The overall layout can be more compact, and the double-layer conveyor line 2 provides a cache, so that the number of AGV forklifts can be reduced. On the one hand, it reduces costs, and on the other hand, it ensures that the production rhythm of material work is not affected by the feeding of AGV forklifts.

[0046] Generally, in almost all embodiments, the double-layer conveyor line 2 and the lifting conveyor line 1 are fixed at the material use station, so as to ensure a continuous material supply to the composite molding machine.

[0047] In this embodiment, the lengths of the first guide rail 2-1, the second guide rail 2-2 and the third guide rail 1-2 are equal, so that the minimum space occupancy can be achieved while satisfying the storage and supply of the trays, thereby improving the utilization of the space.

[0048] like Figure 2 As shown, the lifting mechanism includes a base frame 1-1, a lifting motor 1-4, a lifting transmission module and a scissor fork lifting platform 1-3. The bottom of the scissor fork lifting platform 1-3 is rotatably connected to the base frame 1-1, and the top is rotatably connected to the bottom end of the third guide rail 1-2. The output end of the lifting motor 1-4 is connected to the scissor fork lifting platform 1-3 through the lifting transmission module to drive the scissor fork lifting platform 1-3 to lift and lower. The scissor fork lifting platform 1-3 can be lifted and lowered by the drive of the lifting motor 1-4. In addition, the lifting transmission module can be a tugwheel worm assembly, gear transmission, belt rotation, etc.

[0049] In this embodiment, the base frame 1-1 is a rectangular frame, on which a plurality of buffer units 1-6 are arranged. The buffer unit 1-6 includes a buffer shell, a buffer spring and a buffer rod. The buffer spring is located in the buffer shell, one end of the buffer rod is inserted into the buffer shell, and the other end is provided with a buffer pad. In this embodiment, one end of the buffer spring is connected to the upper surface of the buffer shell, and the other end is connected to the end of the buffer rod inserted into the buffer shell, and the projection of the buffer rod on the horizontal plane is located within the projection area of ​​the third guide rail 1-2 on the horizontal plane. In conjunction with this, the buffer shell adopts a design with a closed top surface. In this way, dust and the like will not fall into the buffer shell, and the buffer spring is in a tension spring working state, which improves durability. Of course, in some other embodiments, other forms may also be used. For example, a baffle may be set on the buffer rod, one end of the buffer spring is supported on the upper surface of the bottom plate of the buffer shell, and the other end is supported on the baffle, and the buffer spring is in a compression spring working state.

[0050] In this embodiment, there are four buffer units 1-6 in total. Of course, in other embodiments, other designs may also be adopted.

[0051] In addition, the third drive assembly includes a third drive motor and a third transmission module. The third drive motor 1-5 is fixed on the third guide rail 1-2. The double-layer conveyor line 2 also includes an ascending signal trigger 2-5 and a descending signal trigger 2-6. The ascending signal trigger 2-5 is arranged on one end of the first guide rail 2-1 facing the lifting conveyor line 1, and the descending signal trigger 2-6 is arranged on one end of the second guide rail 2-2 facing the lifting conveyor line 1. In some embodiments, the ascending signal trigger 2-5 and the descending signal trigger 2-6 can be optical signal triggers for triggering the ascending or descending of the lifting conveyor line 1.

[0052] Similarly, the feeding drive assembly is powered by the feeding drive motor 2-3, and the discharging drive assembly is powered by the discharging drive motor 2-4.

[0053] Generally, the end where the double-layer conveyor line 2 and the AGV lift truck are connected is located at an end far away from the lift conveyor line 1.

[0054] In addition, a composite molding machine also includes the pallet feeding and recycling system as described above, and different composite molding machines reuse multiple AGV lifting forklifts.

[0055] When this application is working, the specific process is as follows:

[0056] 1. In the initial state, if Figure 3As shown, the lifting conveyor line 1 is at the highest point, ready to receive the pallets with materials from the upper layer of the double-layer conveyor line 2. At this time, the upper layer of the double-layer conveyor line 2 should be prepared with sufficient material supply. The pallets with materials on the upper layer of the double-layer conveyor line 2 are supplied by the AGV lifting forklift. The AGV lifting forklift determines whether material supply is required through feedback signals. When material supply is required, the AGV lifting forklift places the pallets with materials on the upper layer of the double-layer conveyor line 2, as shown in FIG. Figure 4 As shown, under normal production conditions, in addition to the pallets with materials on the lifting conveyor line 1, the upper layer of the double-layer conveyor line 2 also has pallets with materials cached, thereby ensuring that after the materials on the pallets with materials on the lifting conveyor line 1 are exhausted, they can be replenished in time, and the production rhythm will not be affected by the failure of the AGV lifting forklift to replenish them in time.

[0057] 2. When the material on the lifting conveyor line 1 is used up, Figure 5 As shown, the lifting conveyor line 1 starts to descend and discharges the empty pallet 4 to the lower layer of the double-layer conveyor line 2. After that, the model information is sent to the AGV lifting forklift. The AGV lifting forklift schedules according to the received model information, and then recovers the empty pallet 4 from the lower layer of the double-layer conveyor line 2 to the designated position.

[0058] 3. The entire feeding and recycling process is coordinated and controlled by the control system for the AGV lift truck, lift conveyor line 1 and double-layer conveyor line 2. The control system determines whether there is a pallet by receiving the signal from the sensor, and sends instructions to the AGV lift truck to control the operation of lift conveyor line 1 and double-layer conveyor line 2.

[0059] If the above functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention, or the part that contributes to the prior art, or the part of the technical solution, can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc., which can store program code.

Claims

1. A tray feeding and recovery system for discrete feeding, characterized in that: Including AGV lifting forklift, double-layer conveyor line and lifting conveyor line set up in front and behind; The double-layer conveyor line includes a first conveyor unit and a second conveyor unit with fixed heights, the first conveyor unit is located below the second conveyor unit, the lifting conveyor line includes a lifting mechanism and a third conveyor unit arranged on the lifting mechanism, the first conveyor unit includes a first guide rail and a feeding drive assembly, the second conveyor unit includes a second guide rail and a discharging drive assembly, and the third conveyor unit includes a third guide rail and a third drive assembly; The axes of the first guide rail, the second guide rail and the third guide rail are all arranged in parallel, and the third guide rail is connected with the first guide rail when it is raised to the height of the first guide rail by the lifting mechanism, and is connected with the second guide rail when it is lowered to the height of the second guide rail by the lifting mechanism. After the third guide rail is docked with the first guide rail, the feeding drive assembly drives the pallet loaded with materials to move along the first guide rail to the third guide rail, and the pallet loaded with materials is completely located on the third guide rail under the drive of the third drive assembly, the third guide rail is docked with the second guide rail, the third drive assembly drives the empty pallet to move along the third guide rail to the second guide rail, and the empty pallet is completely located on the second guide rail under the drive of the discharging drive assembly; The AGV lifting forklift is used to transport the pallet loaded with materials to the double-layer conveyor line, and with the cooperation of the feeding drive component, the pallet loaded with materials is completely located in the first guide rail, and with the cooperation of the discharging drive component, the empty pallet located on the second guide rail is removed and transported to the empty pallet recovery station.

2. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The double-layer conveying line and the lifting conveying line are both fixed at the material using station.

3. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The first guide rail, the second guide rail and the third guide rail are equal in length.

4. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The lifting mechanism includes a base frame, a lifting motor, a lifting transmission module and a scissors-fork lifting platform. The bottom of the scissors-fork lifting platform is rotatably connected to the base frame, and the top is rotatably connected to the bottom end of the third guide rail. The output end of the lifting motor is connected to the scissors-fork lifting platform through the lifting transmission module to drive the scissors-fork lifting platform to lift.

5. A tray feeding and recycling system for discrete feeding according to claim 4, characterized in that: The base frame is a rectangular frame on which a plurality of buffer units are arranged, and the buffer units include a buffer shell, a buffer spring and a buffer rod. The buffer spring is located in the buffer shell, one end of the buffer rod is inserted into the buffer shell, and the other end is provided with a buffer pad. One end of the buffer spring is connected to the upper surface of the buffer shell, and the other end is connected to the end of the buffer rod inserted into the buffer shell, and the projection of the buffer rod on the horizontal plane is located within the projection area of ​​the third guide rail on the horizontal plane.

6. A tray feeding and recycling system for discrete feeding according to claim 5, characterized in that: There are four buffer units in total.

7. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The third driving assembly includes a third driving motor and a third transmission module, and the third driving motor is fixed on the third guide rail.

8. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The double-layer conveyor line also includes an ascending signal trigger and a descending signal trigger. The ascending signal trigger is arranged on one end of the first guide rail facing the lifting conveyor line, and the descending signal trigger is arranged on one end of the second guide rail facing the lifting conveyor line.

9. A tray feeding and recycling system for discrete feeding according to claim 1, characterized in that: The end where the double-layer conveyor line and the AGV lifting forklift are connected is located at an end far away from the lifting conveyor line.

10. A composite molding machine, characterized in that: It also includes a pallet feeding and recovery system as described in any one of claims 1-9.

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