A kind of assembly line with return plate machine

Abstract

The present invention relates to the field of return plate machines, and specifically to an assembly line with a return plate machine, comprising a base, a transport device, a material unloading device and two groups of lifting devices, wherein the base is provided with a plurality of support frames for supporting processing positions, the transport device comprises two assembly lines, and the material unloading device comprises a moving component and a material lifting component, and the present invention divides the assembly line into an upper and an lower layer, wherein the assembly line at the bottom transmits a workpiece positioning plate to a group of lifting devices, and then the workpiece positioning plate is raised to the assembly line above by the lifting devices, and the assembly line located above then transmits the workpiece positioning plate in the reverse direction until it is transmitted to another lifting device, and the other lifting device is lowered to the assembly line at the bottom, so as to realize the cyclic transmission of the workpiece positioning plate, during which the material lifting component can slide left and right on the moving component, and lift up to remove the workpiece positioning plate, so as to realize reciprocating assembly line processing and facilitate automatic unloading at multiple positions.

Description

Technical Field

[0001] The invention relates to the field of board returning machines, in particular to an assembly line with a board returning machine. Background Art

[0002] Lifting return plate machines are widely used in the process of assembly line production to return carriers, tooling plates, products and other workpieces. They can effectively shorten the length of the assembly line, improve the return plate efficiency, and thus improve production efficiency.

[0003] The lifting and returning machine includes a bearing platform for bearing the workpiece. The bearing platform can be raised and lowered to drive the workpiece to be raised and lowered, and the workpiece can move laterally relative to the bearing platform, thereby realizing the conveyance of the workpiece between different assembly lines. In the common lifting and returning machines in the prior art, the lifting and lowering action of the bearing platform is mainly achieved by a motor-driven chain or a ball screw, and the existing returning machines cannot circulate continuously, and cannot automatically unload materials during the unloading process, so unloading is more troublesome.

[0004] my country's patent publication number: CN208345152U; publication date: 2019.01.08 discloses a lifting and returning machine, including a lifting seat, which moves in the vertical direction; a returning platform, which has a bearing surface for bearing a workpiece and is rotatably installed on the lifting seat around a first axis; a driving device, which is arranged between the lifting seat and the returning platform, drives the returning platform to rotate around the first axis to adjust the angle of the bearing surface relative to the horizontal plane. The device is lifted and lowered by the lifting seat, and the workpiece is made to slide in and out under the action of gravity by rotating and flipping the returning platform, but it cannot be processed multiple times in a cycle and cannot unload automatically. Summary of the invention

[0005] The object of the present invention is to provide a production line with a return plate machine.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Provided is a production line with a return plate machine, comprising a base and a transport device, wherein the transport device is fixedly arranged on the base, and also comprises a material unloading device and two sets of lifting devices, wherein the base is provided with a plurality of support frames for supporting processing positions, the transport device comprises two production lines, and the two production lines are installed up and down on the support frames, and the two sets of lifting devices are respectively arranged on the base and located on both sides of the production lines, and each set of lifting devices has two lifting positions, and each lifting position is located on the same horizontal plane as an production line and is connected with one end of the production line, the material unloading device comprises a moving component and a material lifting component, the moving component is fixedly arranged on the base and located directly below the production line, and the material lifting component is slidably arranged on the moving component and located near the middle of the production line below for material lifting.

[0008] Preferably, the lifting assembly includes a moving block, a lifting device and a lowering device, the moving block is a hollow structure, the moving assembly includes a screw slide, the screw slide is fixedly arranged on the top of the base, the moving block is slidably arranged on the screw slide, the lifting device is arranged on the moving block, the lowering device is fixedly arranged on the lifting device for unloading, and the lifting device is used to lift the lowering device.

[0009] Preferably, the ejector includes a ejector cylinder and a plurality of buffers, the ejector cylinder is fixedly arranged on the top of the moving block, the output end of the ejector cylinder is fixedly arranged on the bottom of the feeder, each of the buffers includes a guide rod and a buffer spring, one end of each guide rod is fixedly arranged on the feeder, and the other end is slidably inserted in the moving block, a limit block is also provided at one end of the guide rod located in the moving block, and the buffer spring is sleeved on the guide rod and located between the limit block and the moving block.

[0010] Preferably, the feeder includes a first support plate, a driving motor and a plurality of driving rollers, the first support plate is fixedly arranged on the top of a plurality of guide rods, first baffles are arranged on both sides of the top of the first support plate, a plurality of driving rollers are evenly arranged between the two first baffles, each driving roller is rotatably inserted between the two first baffles, the driving motor is fixedly arranged on the bottom of the first support plate, one end of the driving roller at the left end is connected to the output end of the driving motor through a conveyor belt transmission, and every two adjacent driving rollers are connected through a conveyor belt transmission.

[0011] Preferably, each of the lifting devices includes a lifting platform and a lifter, the lifter includes two lifting cylinders, the bottoms of the two lifting cylinders are fixedly arranged on the base, the output ends of the two lifting cylinders are fixedly connected to the bottom of the lifting platform, and the top of the lifting platform is also provided with a rolling component and a positioning component, the rolling component is used to drive the workpiece positioning plate to move, and the positioning component is used to position the workpiece positioning plate.

[0012] Preferably, the rolling component includes a second motor, two second baffles and a plurality of transmission rollers, the two second baffles are arranged in parallel on the top of the lifting platform, the plurality of transmission rollers are evenly distributed between the two second baffles, each transmission roller is rotatably inserted between the two second baffles, the second motor is fixedly arranged on the top of the lifting platform and connected to a transmission roller through a coupling, and every two transmission rollers are connected by chain transmission.

[0013] Preferably, the positioning component includes two clamps for clamping the workpiece positioning plate, each of the clamps includes a clamping block and a second spring, the clamping block is slidably inserted on the side wall of the lifting platform through a sliding column, and the second spring is sleeved on the sliding column and located between the lifting platform and the clamping block.

[0014] Preferably, each of the assembly lines includes two transmission components, which are located on the same horizontal plane and are arranged in parallel on both sides of the support frame, each transmission component includes a mounting frame, a third motor, a conveyor belt and a plurality of rollers, the mounting frame is fixedly arranged on the inner wall of the support frame, a plurality of rollers are evenly and rotatably arranged in the mounting frame to drive the workpiece positioning plate to move, the third motor is fixedly arranged on the side wall of the mounting frame, the output end of the third motor is rotatably plugged into the mounting frame and fixedly connected to the center of the roller to drive the roller to rotate, and the conveyor belt is sleeved on one side of the plurality of rollers for synchronously driving the plurality of rollers to rotate.

[0015] Preferably, a chamfer is provided at the junction between the mounting frame and the second baffle.

[0016] The beneficial effects of the present invention are as follows: when a workpiece is subjected to multiple steps of processing, it is often carried out on an assembly line. In order to save space, the assembly line is divided into two layers, the bottom assembly line transfers the workpiece positioning plate to a set of lifting devices, and then the workpiece positioning plate is raised to the upper assembly line through the lifting device. The upper assembly line then transfers the workpiece positioning plate in the opposite direction until it is transferred to another lifting device, and the other lifting device is lowered to the bottom assembly line to realize the cyclic transmission of the workpiece positioning plate. During this period, the ejecting assembly can slide left and right on the moving assembly and is arranged directly below the bottom assembly line. When the workpiece positioning plate needs to be unloaded, the ejecting assembly lifts up to remove the workpiece positioning plate, which can not only realize reciprocating assembly line processing, but also facilitate automatic unloading at multiple positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 A top view of the present invention;

[0020] Figure 3 for Figure 2 Sectional view along line AA;

[0021] Figure 4 It is a schematic diagram of the three-dimensional split structure of the present invention;

[0022] Figure 5 It is a schematic diagram of the three-dimensional split structure of the blanking device of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional split structure of the lifting device of the present invention;

[0024] Figure 7 for Figure 6 The enlarged schematic diagram of point B in the middle;

[0025] Figure 8 It is a schematic diagram of the three-dimensional split structure of the assembly line of the present invention;

[0026] In the figure: base 1, support frame 1a, transportation device 2, assembly line 2a, transmission component 2b, mounting frame 2c, third motor 2d, conveyor belt 2e, roller 2f, unloading device 3, moving component 3a, lifting component 3b, moving block 3c, lifter 3d, unloader 3e, screw slide 3f, lift cylinder 3g, buffer 3h, guide rod 3i, buffer spring 3j, first support plate 3k, drive motor 3m, drive roller 3n, first baffle 3p, lifting device 4, lifting platform 4a, lifter 4b, lifting cylinder 4c, rolling component 4d, positioning component 4e, second motor 4f, second baffle 4g, transmission roller 4h, clamper 4i, clamping block 4j, second spring 4k. DETAILED DESCRIPTION

[0027] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on this patent; in order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is 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. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] In the description of the present invention, unless otherwise clearly specified and limited, if the term "connection" or the like appears to indicate the connection relationship between components, the term 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 an indirect connection through an intermediate medium, it can be the internal connection of two components or the interaction relationship between 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.

[0031] Reference Figures 1 to 8 The shown embodiment includes a return plate machine-type assembly line, including a base 1 and a transport device 2, wherein the transport device 2 is fixedly arranged on the base 1, and also includes a material unloading device 3 and two groups of lifting devices 4, wherein the base 1 is provided with a plurality of support frames 1a for supporting processing positions, the transport device 2 includes two assembly lines 2a, and the two assembly lines 2a are installed up and down on the support frames 1a, and two groups of lifting devices 4 are respectively arranged on the base 1 and located on both sides of the assembly line 2a, and each group of lifting devices 4 has two lifting positions, and each lifting position is located on the same horizontal plane as an assembly line 2a and is connected to one end of the assembly line 2a, the material unloading device 3 includes a moving component 3a and a material lifting component 3b, the moving component 3a is fixedly arranged on the base 1 and located directly below the assembly line 2a, and the material lifting component 3b is slidably arranged on the moving component 3a and located near the middle of the assembly line 2a below for material lifting.

[0032] Working principle: When a workpiece is processed in multiple steps, it is often carried out on the assembly line 2a. In order to save space, the assembly line 2a is divided into two layers, the bottom assembly line 2a transfers the workpiece positioning plate to a group of lifting devices 4, and then the workpiece positioning plate is raised to the upper assembly line 2a through the lifting device 4. The upper assembly line 2a then transfers the workpiece positioning plate in the opposite direction until it is transferred to another lifting device 4, and the other lifting device 4 is lowered to the bottom assembly line 2a to realize the cyclic transmission of the workpiece positioning plate. During this period, the lifting component 3b can slide left and right on the moving component 3a and is arranged directly below the bottom assembly line 2a. When the workpiece positioning plate needs to be unloaded, the lifting component 3b pushes up to remove the workpiece positioning plate.

[0033] The ejector assembly 3b includes a moving block 3c, an ejector 3d and a discharger 3e. The moving block 3c is a hollow structure. The moving assembly 3a includes a screw slide 3f. The screw slide 3f is fixedly arranged on the top of the base 1. The moving block 3c is slidably arranged on the screw slide 3f. The ejector 3d is arranged on the moving block 3c. The discharger 3e is fixedly arranged on the ejector 3d for discharge. The ejector 3d is used to lift the discharger 3e. The moving block 3c can slide on the screw slide 3f and drive the ejector 3d to move left and right. When the ejector 3d is opened, the ejector 3d lifts the discharger 3e and discharges the workpiece positioning plate through the discharger 3e.

[0034] The ejector 3d includes an ejector cylinder 3g and a plurality of buffers 3h. The ejector cylinder 3g is fixedly arranged on the top of the moving block 3c, and the output end of the ejector cylinder 3g is fixedly arranged on the bottom of the unloader 3e. Each of the buffers 3h includes a guide rod 3i and a buffer spring 3j. One end of each guide rod 3i is fixedly arranged on the unloader 3e, and the other end is slidably inserted in the moving block 3c. A limit block is also provided at one end of the guide rod 3i located in the moving block 3c. The buffer spring 3j is sleeved on the guide rod 3i and is located between the limit block and the moving block 3c. When the ejector cylinder 3g is started, the output end of the ejector cylinder 3g is extended to lift the unloader 3e upward. The plurality of guide rods 3i play a limiting role to ensure that the unloader 3e can be lifted and lowered in a straight line. The buffer spring 3j plays a buffering role to make the unloader 3e more stable when ejected.

[0035] The unloader 3e includes a first support plate 3k, a drive motor 3m and a plurality of drive rollers 3n, wherein the first support plate 3k is fixedly arranged on the top of a plurality of guide rods 3i, first baffles 3p are arranged on both sides of the top of the first support plate 3k, and a plurality of drive rollers 3n are evenly arranged between the two first baffles 3p, and each drive roller 3n is rotatably inserted between the two first baffles 3p, and the drive motor 3m is fixedly arranged at the bottom of the first support plate 3k, and one end of the drive roller 3n located at the left end is connected to the output end of the drive motor 3m through a conveyor belt transmission, and every two adjacent drive rollers 3n are connected through a conveyor belt transmission, and the drive motor 3m is started, and the output end of the drive motor 3m rotates to drive a drive roller 3n to rotate through the conveyor belt, and the rotating drive roller 3n then drives the remaining drive rollers 3n to rotate, and finally the workpiece positioning plate is unloaded, wherein the drive rollers 3n can rotate between the two first baffles 3p.

[0036] Each of the lifting devices 4 includes a lifting platform 4a and a lifter 4b, and the lifter 4b includes two lifting cylinders 4c. The bottoms of the two lifting cylinders 4c are fixedly arranged on the base 1, and the output ends of the two lifting cylinders 4c are fixedly connected to the bottom of the lifting platform 4a. The top of the lifting platform 4a is also provided with a rolling component 4d and a positioning component 4e. The rolling component 4d is used to drive the workpiece positioning plate to move, and the positioning component 4e is used to position the workpiece positioning plate. The two lifting cylinders 4c are started, and the output ends of the two lifting cylinders 4c are extended or shortened, which can drive the lifting platform 4a to lift and lower, and then drive the workpiece positioning plate to lift and lower. The positioning component 4e on the top of the lifting platform 4a is used to fix the workpiece positioning plate, and the rolling component 4d facilitates the workpiece positioning plate to roll on the lifting platform 4a.

[0037] The rolling component 4d includes a second motor 4f, two second baffles 4g and a plurality of transmission rollers 4h. The two second baffles 4g are arranged in parallel on the top of the lifting platform 4a. The plurality of transmission rollers 4h are evenly distributed between the two second baffles 4g. Each transmission roller 4h is rotatably inserted between the two second baffles 4g. The second motor 4f is fixedly arranged on the top of the lifting platform 4a and connected to a transmission roller 4h through a coupling. Every two transmission rollers 4h are connected through a chain transmission. The second motor 4f is started, and the output end of the second motor 4f can drive the transmission roller 4h to rotate. The rotating transmission roller 4h then drives other transmission rollers 4h to rotate synchronously, thereby driving the workpiece positioning plate to move.

[0038] The positioning component 4e includes two clamps 4i for clamping the workpiece positioning plate, each of the clamps 4i includes a clamping block 4j and a second spring 4k, the clamping block 4j is slidably inserted on the side wall of the lifting platform 4a through a sliding column, the second spring 4k is sleeved on the sliding column and is located between the lifting platform 4a and the clamping block 4j, the clamp 4i is used to clamp and fix the workpiece positioning plate, the sliding column can be inserted and slid on the side wall of the lifting platform 4a and cooperate with the second spring 4k to play a buffering role.

[0039] Each of the assembly lines 2a includes two transmission components 2b, which are located on the same horizontal plane and are arranged in parallel on both sides of the support frame 1a. Each transmission component 2b includes a mounting frame 2c, a third motor 2d, a conveyor belt 2e and a plurality of rollers 2f. The mounting frame 2c is fixedly arranged on the inner wall of the support frame 1a, and a plurality of rollers 2f are evenly and rotatably arranged in the mounting frame 2c to drive the workpiece positioning plate to move. The third motor 2d is fixedly arranged on the side wall of the mounting frame 2c, and the output end of the third motor 2d is rotatably plugged on the mounting frame 2c and fixedly connected to the center of the roller 2f to drive the roller 2f to rotate. The conveyor belt 2e is sleeved on one side of the plurality of rollers 2f for synchronously driving the plurality of rollers 2f to rotate. The workpiece positioning plate is transmitted through the two transmission components 2b, and the third motor 2d is started. The rotation of the output end of the third motor 2d will drive the roller 2f to rotate, and the roller 2f further drives the conveyor belt 2e to move and finally drives the remaining rollers 2f to rotate synchronously, so that the workpiece positioning plate can be transported on the assembly line 2a.

[0040] A chamfer is provided at the junction between the mounting frame 2c and the second baffle plate 4g. The setting of the chamfer makes it smoother for the workpiece positioning plate to move from the mounting frame 2c to the second baffle plate 4g.

[0041] It should be noted that the above specific implementations are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art should understand that various modifications, equivalent substitutions, changes, etc. can be made to the present invention. However, as long as these changes do not deviate from the spirit of the present invention, they should be within the scope of protection of the present invention. In addition, some terms used in the specification and claims of this application are not restrictive, but are only for the convenience of description.

Claims

1. A conveyor assembly line with a return plate machine, comprising a base (1) and a transport device (2), wherein the transport device (2) is fixedly arranged on the base (1), characterized in that : It also includes a material unloading device (3) and two groups of lifting devices (4), the base (1) is provided with a plurality of support frames (1a) for supporting processing positions, the transport device (2) includes two production lines (2a), the two production lines (2a) are installed on the support frames (1a) in an up-and-down manner, the two groups of lifting devices (4) are respectively arranged on the base (1) and located on both sides of the production line (2a), each group of lifting devices (4) has two lifting positions, each lifting position is located on the same horizontal plane as an production line (2a) and is connected to one end of the production line (2a), the material unloading device (3) includes a moving component (3a) and a material lifting component (3b), the moving component (3a) is fixedly arranged on the base (1) and located directly below the production line (2a), and the material lifting component (3b) is slidably arranged on the moving component (3a) and located in the middle of the production line (2a) near the bottom for lifting; The ejector assembly (3b) comprises a moving block (3c), an ejector (3d) and a discharger (3e); the moving block (3c) is a hollow structure; the moving assembly (3a) comprises a screw slide (3f); the screw slide (3f) is fixedly arranged on the top of the base (1); the moving block (3c) is slidably arranged on the screw slide (3f); the ejector (3d) is arranged on the moving block (3c); the discharger (3e) is fixedly arranged on the ejector (3d) for unloading; and the ejector (3d) is used to lift the discharger (3e); The ejector (3d) comprises an ejector cylinder (3g) and a plurality of buffers (3h), wherein the ejector cylinder (3g) is fixedly arranged on the top of the moving block (3c), and the output end of the ejector cylinder (3g) is fixedly arranged on the bottom of the unloader (3e), and each buffer (3h) comprises a guide rod (3i) and a buffer spring (3j), wherein one end of each guide rod (3i) is fixedly arranged on the unloader (3e), and the other end is slidably inserted in the moving block (3c), and a limit block is also provided at one end of the guide rod (3i) located in the moving block (3c), and the buffer spring (3j) is sleeved on the guide rod (3i) and located between the limit block and the moving block (3c); Each of the lifting devices (4) comprises a lifting platform (4a) and a lifter (4b), wherein the lifter (4b) comprises two lifting cylinders (4c), the bottoms of the two lifting cylinders (4c) are fixedly arranged on the base (1), the output ends of the two lifting cylinders (4c) are fixedly connected to the bottom of the lifting platform (4a), and the top of the lifting platform (4a) is also provided with a rolling component (4d) and a positioning component (4e), wherein the rolling component (4d) is used to drive the workpiece positioning plate to move, and the positioning component (4e) is used to position the workpiece positioning plate; The positioning component (4e) includes two clamps (4i) for clamping the workpiece positioning plate, each of the clamps (4i) includes a clamping block (4j) and a second spring (4k), the clamping block (4j) is slidably inserted on the side wall of the lifting platform (4a) through a sliding column, and the second spring (4k) is sleeved on the sliding column and located between the lifting platform (4a) and the clamping block (4j).

2. The assembly line with a return plate machine according to claim 1, characterized in that: The feeder (3e) comprises a first support plate (3k), a drive motor (3m) and a plurality of drive rollers (3n); the first support plate (3k) is fixedly arranged on the top of a plurality of guide rods (3i); first baffles (3p) are arranged on both sides of the top of the first support plate (3k); a plurality of drive rollers (3n) are evenly arranged between two first baffles (3p); each drive roller (3n) is rotatably inserted between the two first baffles (3p); the drive motor (3m) is fixedly arranged on the bottom of the first support plate (3k); one end of the drive roller (3n) at the left end is connected to the output end of the drive motor (3m) through a conveyor belt transmission; and every two adjacent drive rollers (3n) are connected through a conveyor belt transmission.

3. The assembly line with a return plate machine according to claim 1, characterized in that: The rolling component (4d) comprises a second motor (4f), two second baffles (4g) and a plurality of transmission rollers (4h); the two second baffles (4g) are arranged in parallel on the top of the lifting platform (4a); the plurality of transmission rollers (4h) are evenly distributed between the two second baffles (4g); each transmission roller (4h) is rotatably inserted between the two second baffles (4g); the second motor (4f) is fixedly arranged on the top of the lifting platform (4a) and connected to a transmission roller (4h) via a coupling; and every two transmission rollers (4h) are connected via a chain transmission.

4. The assembly line with a return plate machine according to claim 1, characterized in that: Each of the assembly lines (2a) comprises two transmission components (2b), the two transmission components (2b) are located on the same horizontal plane and are arranged in parallel on both sides of the support frame (1a), each transmission component (2b) comprises a mounting frame (2c), a third motor (2d), a conveyor belt (2e) and a plurality of rollers (2f), the mounting frame (2c) is fixedly arranged on the inner wall of the support frame (1a), the plurality of rollers (2f) are evenly and rotatably arranged in the mounting frame (2c) to drive the workpiece positioning plate to move, the third motor (2d) is fixedly arranged on the side wall of the mounting frame (2c), the output end of the third motor (2d) is rotatably plugged into the mounting frame (2c) and fixedly connected to the center of the roller (2f) to drive the roller (2f) to rotate, and the conveyor belt (2e) is sleeved on one side of the plurality of rollers (2f) to synchronously drive the plurality of rollers (2f) to rotate.

5. The assembly line with a return plate machine according to claim 4, characterized in that: A chamfer is provided at the junction between the mounting frame (2c) and the second baffle (4g).

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