Multi-station feeding and discharging device

Abstract

The utility model belongs to the technical field of automatic machining equipment, and particularly relates to a multi-station feeding and discharging device which comprises a rack, an upper disc bin, a lower disc bin, a first transferring mechanism and a second transferring mechanism, and the upper disc bin, the lower disc bin, the first transferring mechanism and the second transferring mechanism are arranged on the rack. The first transferring mechanism is used for transferring trays in the tray feeding bin to the waiting station, the rack is provided with a positioning station, and the second transferring mechanism is used for transferring the trays on the positioning station to the tray discharging bin while transferring the trays on the waiting station to the positioning station. Therefore, the second transferring mechanism can complete the two working procedures of material tray positioning and material tray collecting at a time in a synchronous co-feeding mode, the production period is shortened, and the production efficiency is improved.

Description

Technical Field

[0001] The present application belongs to the technical field of automated processing equipment, and in particular, relates to a multi-station loading and unloading device. Background Art

[0002] In automated production, product loading and unloading is a very important process. In order to facilitate front-end and back-end production, material trays are usually used for loading and unloading.

[0003] At present, the commonly used loading and unloading mechanism for material trays is composed of an upper tray bin, a transfer mechanism, a positioning mechanism, and a closing tray bin. When the material tray is full or empty, the transfer mechanism first moves the material tray to the closing tray bin, and then the transfer mechanism goes back to transfer the material tray from the upper tray bin to the positioning mechanism for positioning. The waiting between them wastes time and affects production efficiency. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a multi-station loading and unloading device, which aims to solve the technical problem in the prior art that when the material tray is full or empty, the transfer mechanism first moves the material tray to the closing bin, and then the transfer mechanism goes back to transfer the material tray from the upper bin to the positioning mechanism for positioning, waiting for each other, wasting time and affecting production efficiency.

[0005] The utility model provides a multi-station loading and unloading device, comprising a frame and an upper disk warehouse, a lower disk warehouse, a first transfer mechanism and a second transfer mechanism arranged on the frame, the first transfer mechanism is provided with a waiting station, the first transfer mechanism is used to transfer the material tray in the upper disk warehouse to the waiting station, the frame is provided with a positioning station, the second transfer mechanism is used to transfer the material tray on the waiting station to the positioning station and at the same time transfer the material tray on the positioning station to the lower disk warehouse; the lower disk warehouse comprises a second mounting vertical plate, the second mounting vertical plate is provided with a bearing member, the second mounting vertical plate is arranged on the frame and is provided with two, a second accommodating space for accommodating multiple stacked material trays is formed between the two second mounting vertical plates, the bearing member is a wedge-shaped protrusion hinged on the second mounting vertical plate, and the bearing member is flipped to carry the material tray moved from the material tray on the positioning station to the second accommodating space.

[0006] Optionally, a strip groove adapted to the wedge-shaped protrusion is formed on the second mounting plate, and the wedge-shaped protrusion includes a guide slope, a first horizontal support surface and a second horizontal support surface, the guide slope faces the second transfer mechanism, the first horizontal support surface faces away from the second transfer mechanism, and the second horizontal support surface is used to abut against the bottom surface of the strip groove.

[0007] Optionally, the first transfer mechanism includes a first drive component, a pulley and a conveyor belt, the first drive component is arranged on the frame, the pulley is rotatably connected to the frame and connected to the power output end of the first drive component, the conveyor belt is wound around the pulley, and the first drive component drives the pulley to rotate to drive the conveyor belt to transfer the material tray in the upper tray bin to the waiting station.

[0008] Optionally, the second transfer mechanism includes a transfer platform, a first lifting assembly, a second lifting assembly, a third lifting assembly and a second driving assembly, the transfer platform is movably disposed on the frame, the second driving assembly is disposed on the frame and drives the transfer platform to move on the frame to drive the first lifting assembly and the second lifting assembly to move, the first lifting assembly, the second lifting assembly and the third lifting assembly all include a lifting state, the first lifting assembly is used to lift the material tray on the waiting station in the lifting state, the second lifting assembly is used to lift the material tray moved from the positioning station to the lower tray bin by the second lifting assembly in the lifting state, and the third lifting assembly is used to lift the material tray moved from the waiting station to the positioning station by the first lifting assembly in the lifting state.

[0009] Optionally, the multi-station loading and unloading device also includes a first driving member, the first lifting assembly includes a first guide rod, a first bearing plate and a first connecting plate, the first driving member is arranged on the transferring platform, the first guide rod passes through the transferring platform and is slidably connected with the transferring platform, and the two ends of the first guide rod are respectively connected to the first bearing plate and the first connecting plate, the power output end of the first driving member is connected to the first bearing plate, the first bearing plate is used to abut against the material tray on the waiting station, and the first driving member drives the first bearing plate to lift the material tray on the waiting station.

[0010] Optionally, the multi-station loading and unloading device also includes a second driving member, the second lifting assembly includes a second guide rod, a second carrying plate and a second connecting plate, the second driving member is arranged on the frame, the second guide rod passes through the transfer platform and is slidably connected with the transfer platform, and the two ends of the second guide rod are respectively connected to the second carrying plate and the second connecting plate, the second carrying plate is used to abut against the material tray on the lower disk bin, and when the transfer platform transfers the material tray on the positioning station to the lower disk bin, the second driving member drives the second carrying plate to lift the material tray of the lower disk bin.

[0011] Optionally, the multi-station loading and unloading device also includes a third driving member, the third lifting assembly includes a third guide rod, a third bearing plate and a third connecting plate, the third driving member is arranged on the frame, the third connecting plate is arranged at the power output end of the third driving member, the two ends of the third guide rod are respectively connected to the third bearing plate and the third connecting plate, the third bearing plate is used to abut against the material tray loaded from the waiting station to the positioning station, and the third driving member drives the third connecting plate, the third guide rod and the third bearing plate to lift the material tray loaded from the waiting station to the positioning station.

[0012] Optionally, a clearance groove for the second guide rod to pass through is opened on the transfer platform, and the clearance groove extends along the moving direction of the transfer platform to avoid the second guide rod when the transfer platform moves.

[0013] Optionally, a positioning plate is provided at a position on the frame corresponding to the positioning station, and a window is opened on the positioning plate corresponding to an area on the tray where materials are placed. When the third lifting assembly lifts the tray, the edge of the tray abuts against the positioning plate.

[0014] Optionally, the upper tray bin includes a first mounting plate, a clamping assembly and a fourth lifting assembly, the clamping assembly is arranged on the first mounting plate, the fourth lifting assembly is arranged on the frame, the first mounting plate is arranged on the frame and two are arranged, a first accommodating space for accommodating multiple stacked trays is formed between the two first mounting plates, the clamping assembly is used to clamp the trays in the first accommodating space, and the fourth lifting assembly is used to lift the trays in the first accommodating space.

[0015] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects: the utility model provides a multi-station loading and unloading device, including a frame and an upper disk bin, a lower disk bin, a first transfer mechanism and a second transfer mechanism arranged on the frame, the first transfer mechanism is provided with a waiting station, the first transfer mechanism is used to transfer the material tray in the upper disk bin to the waiting station, the frame is provided with a positioning station, and the second transfer mechanism is used to transfer the material tray on the waiting station to the positioning station and transfer the material tray on the positioning station to the lower disk bin. Therefore, in the present application, the second transfer mechanism can use a synchronous and co-advanced method to complete the two processes of positioning and closing the material tray at one time, shortening the production cycle and improving production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the multi-station loading and unloading device provided in an embodiment of the present application.

[0018] Figure 2 It is a structural schematic diagram of the second transfer mechanism provided in an embodiment of the present application at a first viewing angle.

[0019] Figure 3 It is a structural schematic diagram of the second transfer mechanism provided in an embodiment of the present application at a second viewing angle.

[0020] Figure 4 It is a schematic structural diagram of the second transfer mechanism provided in an embodiment of the present application under a third viewing angle.

[0021] Figure 5 It is a structural schematic diagram of the first transfer mechanism provided in an embodiment of the present application.

[0022] Figure 6 It is a schematic diagram of the structure of the upper bin provided in an embodiment of the present application.

[0023] Figure 7 It is a structural schematic diagram of the positioning plate provided in an embodiment of the present application.

[0024] Figure 8 It is a structural schematic diagram of the lower plate bin provided in an embodiment of the present application from a first perspective.

[0025] Fig. 9 Figure 8 Enlarged view of point A in the middle.

[0026] Fig.10 It is a schematic diagram of the structure of the lower plate bin provided in an embodiment of the present application at a second viewing angle.

[0027] Fig.11 It is a flowchart of step 1 in the workflow provided in the embodiment of the present application.

[0028] Fig.12 It is a flowchart of step 2 in the workflow provided in the embodiment of the present application.

[0029] Fig.13 It is a flowchart of step 3 in the workflow provided in the embodiment of the present application.

[0030] Fig.14It is a flowchart of step 4 in the workflow provided in the embodiment of the present application.

[0031] Fig.15 It is a flowchart of step 5 in the workflow provided in the embodiment of the present application.

[0032] Description of Figure Numbers:

[0033] 1. Frame; 10. Positioning station; 11. Positioning plate; 110. Window; 2. Upper pan bin; 21. First mounting plate; 210. First accommodating space; 22. Clamping assembly; 221. Clamping cylinder; 222. Lifting cylinder; 223. Support member; 224. Protrusion; 23. Fourth lifting assembly; 231. Fourth guide rod; 232. Fourth bearing plate; 233. Fourth connecting plate; 234. Fourth driving member; 3. Lower pan bin; 31. Second mounting plate; 310. Second accommodating space; 311. Strip groove; 32. Bearing member; 321. Guide slope; 322. First horizontal supporting surface; 323. Second horizontal supporting surface; 33. Third mounting plate; 34. Pushing mechanism; 341. Fifth guide rod; 342. Pushing plate; 343. Fifth driving member; 4. The first transfer mechanism; 40, waiting station; 41, first driving assembly; 42, pulley; 43, conveyor belt; 5, second transfer mechanism; 50, transfer platform; 501, avoidance groove; 51, first lifting assembly; 511, first guide rod; 512, first bearing plate; 513, first connecting plate; 514, first driving member; 52, second lifting assembly; 521, second guide rod; 522, second bearing plate; 523, second connecting plate; 524, second driving member; 53, third lifting assembly; 531, third guide rod; 532, third bearing plate; 533, third connecting plate; 534, third driving member; 54, second driving assembly; 541, first guide rail; 542, first slider; 543, driving motor; 544, screw rod; 545, nut seat; 6, material tray. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0035] In the description of the present application, “plurality” means two or more than two, unless otherwise clearly and specifically defined.

[0036] It should also be noted that the directional terms such as left, right, up and down in the embodiments of the present application are merely relative concepts or are based on the normal use status of the product, and should not be considered as restrictive.

[0037] Reference Figure 1 The utility model provides a multi-station loading and unloading device, including a frame 1 and an upper disk bin 2, a lower disk bin 3, a first transfer mechanism 4 and a second transfer mechanism 5 arranged on the frame 1. The first transfer mechanism 4 is provided with a waiting station 40. The first transfer mechanism 4 is used to transfer the material tray 6 in the upper disk bin 2 to the waiting station 40. A positioning station 10 is provided on the frame 1. The second transfer mechanism 5 is used to transfer the material tray 6 on the waiting station 40 to the positioning station 10, and at the same time, transfer the material tray 6 on the positioning station 10 to the lower disk bin 3.

[0038] For the sake of convenience, the frame 1 is taken as the standard, and the frame 1 includes a length direction, a width direction and a height direction. Among them, the upper pan bin 2, the waiting station 40, the positioning station 10 and the lower pan bin 3 are arranged in sequence along the length direction of the frame 1. A plurality of trays 6 are stacked in the upper pan bin 2 along the height direction of the frame 1. When it is necessary to transfer the tray 6 in the upper pan bin 2 to the waiting station 40, the tray 6 at the bottom layer of the plurality of trays 6 falls onto the first transfer mechanism 4, and the first transfer mechanism 4 transfers the tray 6 to the waiting station 40. The second transfer mechanism 5 transfers the tray 6 on the waiting station 40 to the positioning station 10, and at the same time, transfers the tray 6 on the positioning station 10 to the lower pan bin 3. Similarly, the plurality of trays 6 transferred to the lower pan bin 3 are stacked along the height direction of the frame 1. It can be seen that the multi-station loading and unloading device provided with the second transfer mechanism 5 is not only compact in structure and stable and reliable in operation; but also can meet the needs of fast-paced operations by synchronously transferring multiple trays 6, thereby improving work efficiency.

[0039] It is worth noting that in the present application, the material tray 6 in the upper tray bin 2 can be loaded with materials (such as iron parts, plastic parts) or be an empty tray. When the material tray 6 in the upper tray bin 2 is loaded with materials, the material tray 6 transferred to the waiting station 40 is also loaded with materials; the materials of the material tray 6 transferred to the positioning station 10 are taken away by the external mechanism, and the tray is empty at this time. Therefore, the material tray 6 transferred to the lower tray bin 3 is an empty tray. The above process is the multi-station loading and unloading device of the present application for unloading operation.

[0040] When the material tray 6 in the upper tray bin 2 is empty, the material tray 6 transferred to the waiting station 40 is also empty; the material tray 6 transferred to the positioning station 10 is loaded by an external mechanism, and at this time, the material tray 6 is loaded with materials. Therefore, the material tray 6 transferred to the lower tray bin 3 is loaded with materials. The above process is the multi-station loading and unloading device of the present application for loading operation.

[0041] Reference Figure 5In a feasible embodiment, the first transfer mechanism 4 includes a first drive assembly 41, a pulley 42 and a conveyor belt 43. The first drive assembly 41 is arranged on the frame 1, the pulley 42 is rotatably connected to the frame 1 and connected to the power output end of the first drive assembly 41, and the conveyor belt 43 is wound around the pulley 42. The first drive assembly 41 drives the pulley 42 to rotate to drive the conveyor belt 43 to transfer the material tray 6 in the upper tray bin 2 to the waiting station 40. The first drive assembly 41 can use a drive motor 543.

[0042] The above only lists one feasible implementation of the first transfer mechanism 4. In other implementations, the first transfer mechanism 4 can transfer the material tray 6 by means of a screw rod 544 or a linear module.

[0043] Reference Figures 2 to 4 In a feasible embodiment, the second transfer mechanism 5 includes a transfer platform 50, a first lifting assembly 51, a second lifting assembly 52, a third lifting assembly 53 and a second driving assembly 54. The transfer platform 50 is movably arranged on the frame 1. The second driving assembly 54 is arranged on the frame 1 and drives the transfer platform 50 to move on the frame 1 to drive the first lifting assembly 51 and the second lifting assembly 52 to move. The first lifting assembly 51, the second lifting assembly 52 and the third lifting assembly 53 all include a lifting state. The first lifting assembly 51 is used to lift the material tray 6 on the waiting station 40 in the lifting state. The second lifting assembly 52 is used to lift the material tray 6 transferred from the positioning station 10 by the second lifting assembly 52 to the lower tray warehouse 3 in the lifting state. The third lifting assembly 53 is used to lift the material tray 6 transferred from the waiting station 40 to the positioning station 10 by the first lifting assembly 51 in the lifting state. In this embodiment, the first lifting assembly 51 can separate the material tray 6 on the waiting station 40 from the first transfer mechanism 4 by lifting, thereby avoiding the contact and friction between the material tray 6 and the first transfer mechanism 4 when the transfer platform 50 transfers the material tray 6. The second lifting assembly 52 can lift the material tray 6 transferred to the bottom of the lower tray bin 3 into the lower tray bin 3, and the lower tray bin 3 fixes the material tray 6. Since the material trays 6 in the lower tray bin 3 need to be stacked, the material tray 6 lifted by the second lifting assembly 52 is located at the bottom layer of the multiple material trays 6. In the present application, in the height direction of the frame 1, the height of each lifting assembly in the initial state is lower than the height in the lifted state.

[0044] Further, the transfer platform 50 is a plate-like structure, and the second drive assembly 54 adopts a screw 544 drive structure. Specifically, the second drive assembly 54 includes a first guide rail 541, a first slider 542, a drive motor 543, a screw 544 and a nut seat 545. The first guide rail 541 and the drive motor 543 are arranged on the frame 1, the slider and the nut seat 545 are arranged on the transfer platform 50, and the screw 544 is arranged on the power output end of the drive motor 543. The screw 544 is threadedly connected with the nut seat 545, and the first slider 542 is slidably connected with the first guide rail 541. When the drive motor 543 is started, since the nut seat 545 is threadedly connected with the screw 544, when the screw 544 rotates, the nut seat 545 and the first slider 542 cooperate to drive the transfer platform 50 to slide along the first guide rail 541. The extension direction of the first guide rail 541 is the length direction of the frame 1. The above is one of the specific implementations of the second drive assembly 54. In some other feasible embodiments, the second drive assembly 54 may be a linear module mounted on the frame 1. The linear module is a transmission device that directly converts electrical energy into linear motion mechanical energy without any intermediate conversion mechanism, and has the advantages of simple structure, convenient long stroke, high acceleration, fast response, high precision, etc. The above-mentioned linear module can be used to connect the transfer platform 50 and drive the transfer platform 50 to slide.

[0045] The specific working method of this solution is described in combination with the first lifting assembly, the second lifting assembly and the third lifting assembly in the above embodiment. Take the material tray 6 in the upper tray bin 2 loaded with materials as an example. When it is necessary to transfer the material tray 6 in the upper tray bin 2 to the waiting station 40, the material tray 6 at the bottom layer of the multiple material trays 6 falls onto the first transfer mechanism 4, and the first transfer mechanism 4 transfers the material tray 6 to the waiting station 40. Fig.11 , Fig.11 This is a flow chart of step 1 in the workflow. At this time, the first lifting assembly 51 is located below the tray 6 of the waiting station 40, and the second lifting assembly is located below the tray 6 of the positioning station 10. The power output ends of the first lifting assembly 51 and the second lifting assembly 52 are both in the initial state. Fig.12 , Fig.12 This is a flow chart of step 2 in the workflow. When the first lifting assembly 51 is lifted upward, lifting the tray 6 and separating the tray 6 from the first transfer mechanism 4, the materials of the tray 6 lifted by the third lifting assembly 53 have been taken away by the external mechanism and become an empty tray. Then it starts to descend to the initial state. Since the second lifting assembly 52 is located below the empty tray, the descending empty tray falls on the second lifting assembly 52. Fig.13 , Fig.13Schematic diagram of step 3 in the workflow. Under the driving action of the second driving assembly 54, the first lifting assembly 51 in the lifting state moves the material tray 6 from the waiting station 40 to the positioning station 10. At the same time, the second lifting assembly 52 in the initial state moves the empty tray from the positioning station 10 to the lower tray bin 3. Fig.14 , Fig.14 This is a flow chart of step 4 in the workflow. After the second lifting assembly 52 is moved into place, the second lifting assembly 52 lifts the empty tray to the lower tray bin 3 for fixation. At the same time, the third lifting mechanism lifts the material tray 6 in the lifting state to facilitate the external mechanism to take away the material parts, and the first lifting assembly 51 returns to the initial state. Fig.15 , Fig.15 It is a flowchart of step 5 in the workflow. When the empty tray is fixed in the lower tray bin 3, the second lifting assembly 52 returns to its initial state. At the same time, the first transfer mechanism 4 transfers the material tray 6 to the waiting station 40. Under the driving action of the second driving mechanism, the first lifting assembly 51 moves from the upper position of the positioning station 10 to the lower position of the waiting station 40, and at the same time, the second lifting assembly 52 moves from the lower tray bin 3 to the lower position of the positioning station 10, and step 1 is repeated. In this cycle, the operations of the first transfer mechanism 4 and the second transfer mechanism 5 do not affect each other, and the division of labor and cooperation are compact as a whole, which greatly saves the time of tray change and is easy to control.

[0046] In the present application, the waiting station 40 and the positioning station 10 can be manually set according to the actual needs of production. The distance between the waiting station 40 and the positioning station 10 is the same as the distance between the positioning station 10 and the lower plate bin 3, which is convenient for performing the two processes of positioning and lowering the plate at the same time. Figure 7 In order to further accurately position, a positioning plate 11 is provided on the frame 1 at a position corresponding to the positioning station 10. The positioning plate 11 has a window 110 corresponding to the area where the material is placed on the tray 6, so that the tray 6 is exposed and an external mechanism can place or take away the material. When the third lifting assembly 53 lifts the tray 6, the edge of the tray 6 abuts against the positioning plate 11, thereby achieving accurate positioning.

[0047] Specifically, the multi-station loading and unloading device also includes a first driving member 514, the first lifting assembly 51 includes a first guide rod 511, a first bearing plate 512 and a first connecting plate 513, the first driving member 514 is arranged on the transfer platform 50, the first guide rod 511 passes through the transfer platform 50 and is slidably connected with the transfer platform 50, and the two ends of the first guide rod 511 are respectively connected to the first bearing plate 512 and the first connecting plate 513, the power output end of the first driving member 514 is connected to the first bearing plate 512, the first bearing plate 512 is used to abut against the material tray 6 on the waiting station 40, and the first driving member 514 drives the first bearing plate 512 to lift the material tray 6 of the lower tray bin 3.

[0048] Specifically, the multi-station loading and unloading device also includes a second driving member 524, and the second lifting assembly 52 includes a second guide rod 521, a second supporting plate 522 and a second connecting plate 523. The second driving member 524 is arranged on the frame 1, and the second guide rod 521 passes through the transfer platform 50 and slides with the transfer platform 50, and the two ends of the second guide rod 521 are respectively connected to the second supporting plate 522 and the second connecting plate 523, and the second supporting plate 522 is used to abut against the material tray 6 on the lower disk bin 3. When the transfer platform 50 transfers the material tray 6 on the positioning station 10 to the lower disk bin 3, the second driving member 524 drives the second supporting plate 522 to lift the upper material tray 6.

[0049] Specifically, the multi-station loading and unloading device also includes a third driving member 534, and the third lifting assembly 53 includes a third guide rod 531, a third supporting plate 532 and a third connecting plate 533. The third driving member 534 is arranged on the frame 1, and the third connecting plate 533 is arranged at the power output end of the third driving member 534. The two ends of the third guide rod 531 are respectively connected to the third supporting plate 532 and the third connecting plate 533. The third supporting plate 532 is used to abut against the material tray 6 transferred from the waiting station 40 to the positioning station 10. The third driving member 534 drives the third connecting plate 533, the third guide rod 531 and the third supporting plate 532 to lift the material tray 6 transferred from the waiting station 40 to the positioning station 10.

[0050] The first driving member 514 , the second driving member 524 and the third driving member 534 in the above embodiment can all be electric cylinders or pneumatic cylinders.

[0051] Furthermore, the transfer platform 50 is provided with an avoidance groove 501 through which the second guide rod 521 can pass, and the avoidance groove 501 extends along the moving direction of the transfer platform 50 to avoid the third guide rod 531 when the transfer platform 50 moves. In the present application, since the second guide rod 521 is fixed, the avoidance groove 501 can prevent the second guide rod 521 from interfering with the transfer platform 50 during the movement of the transfer platform 50.

[0052] Reference Figure 6In a feasible embodiment, the upper tray bin 2 includes a first mounting plate 21, a clamping assembly 22 and a fourth lifting assembly 23. The clamping assembly 22 is arranged on the first mounting plate 21, and the fourth lifting assembly 23 is arranged on the frame 1. The first mounting plate 21 is arranged on the frame 1 and two are arranged. A first accommodating space 210 for accommodating a plurality of stacked trays 6 is formed between the two first mounting plates 21. The clamping assembly 22 is used to clamp the trays 6 in the first accommodating space 210, and the fourth lifting assembly 23 is used to lift the trays 6 in the first accommodating space 210. The following is the specific working process of this embodiment: a plurality of stacked trays 6 are placed in the first accommodating space 210, and the clamping assemblies 22 on both sides are close to each other to prevent the trays 6 from falling. When the tray 6 needs to be transferred to the waiting station 40, the fourth lifting assembly 23 is lifted upward and just abuts against the tray 6 at the bottom of the plurality of stacked trays 6. At the same time, the clamping assemblies 22 on both sides separate in a direction away from each other, and the multiple trays 6 are released. At this time, the fourth lifting assembly 23 completely provides support for the multiple trays 6. The fourth lifting assembly 23 returns to the initial state, and the bottom tray 6 falls on the transmission belt. At the same time, the clamping assemblies 22 on both sides move toward each other, clamping the penultimate tray 6 and all the trays 6 above. The bottom tray 6 is transferred by the conveyor belt 43.

[0053] Furthermore, the clamping assembly 22 includes a clamping cylinder 221 and a lifting cylinder 222. The clamping cylinder 221 is slidably connected to the first mounting plate 21, and the lifting cylinder 222 is fixed to the first mounting plate and can drive the clamping cylinder 221 to move up and down. The power output end of each clamping cylinder 221 is connected to a support member 223, and a protrusion 224 is formed on the support member 223 along the width direction of the frame 1. The protrusion 224 is used to abut the bottom of the tray 6 to support the tray 6. When the clamping cylinders 221 on both sides drive the protrusions 224 to move toward each other, the bottom of the tray 6 abuts against the protrusions 224; when the clamping cylinders 221 on both sides drive the protrusions 224 to separate in a direction away from each other, the bottom of the tray 6 is separated from the protrusions 224. The lifting cylinder 222 drives the clamping cylinder 221 to move up and down, so as to ensure that when the clamping cylinders 221 on both sides drive the protrusions 224 to move toward each other, the bottom of the tray 6 just contacts the protrusions 224. For example, when there are materials on the tray 6, the distance between two adjacent trays 6 is large due to the blocking effect of the materials. At this time, the driving cylinder needs to drive the clamping cylinder 221 to rise to ensure that the bottom of the tray 6 just contacts the protrusions 224; when the tray 6 is empty, the distance between two adjacent trays 6 is small due to the lack of blocking effect of materials. At this time, the driving cylinder needs to drive the clamping cylinder 221 to descend to ensure that the bottom of the tray 6 just contacts the protrusions 224.

[0054] Specifically, the fourth lifting assembly 23 includes a fourth guide rod 231, a fourth bearing plate 232, a fourth connecting plate 233 and a fourth driving member 234. The fourth connecting plate 233 is connected to the frame 1, and the fourth driving member 234 is arranged on the fourth connecting plate 233. The fourth guide rod 231 passes through the fourth connecting plate 233 and is slidably connected with the fourth connecting plate 233. The end of the fourth guide rod 231 is connected to the fourth bearing plate 232. The fourth bearing plate 232 is used to abut against the material tray 6 on the upper tray bin 2. The fourth driving member 234 in the embodiment can be a cylinder or an electric cylinder.

[0055] Reference Figures 8 to 10 In a feasible embodiment, the lower tray bin 3 includes a second mounting plate 31, on which a bearing member 32 is provided. The second mounting plate 31 is provided on the frame 1 and two second mounting plates 31 are provided. A second accommodating space 310 for accommodating a plurality of stacked trays 6 is formed between the two second mounting plates 31. The bearing member 32 is used to carry the trays 6 transferred from the positioning station 10 to the second accommodating space 310. Specifically, the bearing member 32 is a wedge-shaped protrusion hinged on the second mounting plate 31, and a strip groove 311 adapted to the wedge-shaped protrusion is provided on the second mounting plate 31. The wedge-shaped protrusion includes a guide slope 321, a first horizontal support surface 322, and a second horizontal support surface 323. The guide slope 321 faces the second transfer mechanism 5, the first horizontal support surface 322 faces away from the second transfer mechanism 5, and the second horizontal support surface 323 is used to abut against the bottom surface of the strip groove 311. When the material tray 6 is placed in the lower tray bin 3, the first horizontal support surface 322 abuts against the bottom surface of the material tray 6, and the second horizontal support surface 323 abuts against the bottom surface of the strip groove 311, thereby fixing the material tray 6 in the lower tray bin 3. When the second lifting assembly 52 lifts the material tray 6, under the action of the guide slope 321, the wedge-shaped protrusion rotates until the material tray 6 is separated from the guide slope 321, and under the action of gravity, the wedge-shaped protrusion rotates and returns to the first horizontal support surface 322 abuts against the bottom surface of the material tray 6, and the second horizontal support surface 323 abuts against the bottom surface of the strip groove 311, thereby fixing the material tray 6 in the lower tray bin 3. In this embodiment, the wedge-shaped protrusion has a simple structure and cooperates with the second lifting assembly 52 to achieve the effect of stably placing the material tray 6.

[0056] In a feasible embodiment, the lower tray bin 3 further includes a third mounting plate 33, which is arranged on the frame 1 and located on the same side of the two second mounting plates 31, and the third mounting plate 33 is provided with a pushing mechanism 34, which is used to push the material tray 6 in the second accommodating space 310 out of the second accommodating space 310. In this embodiment, the third mounting plate 33 is only arranged on the same side of the two second mounting plates 31, so the other side of the two second mounting plates 31 is open. When the material trays 6 in the lower tray bin 3 are stacked to a preset number, they need to be transferred out to avoid affecting the subsequent second lifting assembly 52 to lift the material trays 6 into the lower tray. Specifically, the pushing mechanism 34 includes a fifth guide rod 341, a pushing plate 342 and a fifth driving member 343, the fifth driving member 343 is arranged on the third mounting plate 33, the fifth guide rod 341 passes through the third mounting plate 33 and is slidably connected with the third mounting plate 33, and the end of the fifth guide rod 341 is connected to the pushing plate 342. The pushing plate 342 is used to abut against the side of the material tray 6 on the lower tray bin 3. The fifth driving member 343 can be driven to push the stacked material trays 6 out of the lower tray bin 3. In the embodiment, the fifth driving member 343 can be a pneumatic cylinder or an electric cylinder.

[0057] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-station loading and unloading device, characterized in that: The invention comprises a frame (1), an upper disk bin (2), a lower disk bin (3), a first transfer mechanism (4) and a second transfer mechanism (5) arranged on the frame (1); the first transfer mechanism (4) is provided with a waiting station (40); the first transfer mechanism (4) is used to transfer a material tray (6) in the upper disk bin (2) to the waiting station (40); a positioning station (10) is arranged on the frame (1); the second transfer mechanism (5) is used to transfer a material tray (6) on the waiting station (40) to the positioning station (10) and at the same time transfer the material tray (6) on the positioning station (10) to the lower disk bin. (3); the lower disk bin (3) comprises a second mounting vertical plate (31), a bearing member (32) is provided on the second mounting vertical plate (31), the second mounting vertical plate (31) is arranged on the frame (1) and two second mounting vertical plates (31) are provided, a second accommodating space (310) for accommodating a plurality of stacked material trays (6) is formed between the two second mounting vertical plates (31), the bearing member (32) is a wedge-shaped protrusion hinged on the second mounting vertical plate (31), and the bearing member (32) is flipped to carry the material tray (6) transferred from the positioning station (10) to the second accommodating space (310).

2. The multi-station loading and unloading device according to claim 1, characterized in that: The second mounting vertical plate (31) is provided with a strip groove (311) adapted to the wedge-shaped protrusion, and the wedge-shaped protrusion comprises a guiding inclined surface (321), a first horizontal supporting surface (322) and a second horizontal supporting surface (323), the guiding inclined surface (321) faces the second transfer mechanism (5), the first horizontal supporting surface (322) faces away from the second transfer mechanism (5), and the second horizontal supporting surface (323) is used to abut against the bottom surface of the strip groove (311).

3. The multi-station loading and unloading device according to claim 1, characterized in that: The first transfer mechanism (4) comprises a first driving component (41), a pulley (42) and a conveyor belt (43); the first driving component (41) is arranged on the frame (1); the pulley (42) is rotatably connected to the frame (1) and is connected to the power output end of the first driving component (41); the conveyor belt (43) is wound around the pulley (42); the first driving component (41) drives the pulley (42) to rotate to drive the conveyor belt (43) to transfer the material tray (6) in the upper tray bin (2) to the waiting station (40).

4. The multi-station loading and unloading device according to claim 1, characterized in that: The second transfer mechanism (5) comprises a transfer platform (50), a first lifting assembly (51), a second lifting assembly (52), a third lifting assembly (53) and a second driving assembly (54); the transfer platform (50) is movably arranged on the frame (1); the second driving assembly (54) is arranged on the frame (1) and drives the transfer platform (50) to move on the frame (1) so as to drive the first lifting assembly (51) and the second lifting assembly (52) to move; the first lifting assembly (51) and the second lifting assembly (52) The first lifting component (51) and the third lifting component (53) both include a lifting state, wherein the first lifting component (51) is used to lift the material tray (6) on the waiting station (40) in the lifting state, and the second lifting component (52) is used to lift the material tray (6) transferred from the positioning station (10) to the lower tray bin (3) by the second lifting component (52) in the lifting state, and the third lifting component (53) is used to lift the material tray (6) transferred from the waiting station (40) to the positioning station (10) by the first lifting component (51) in the lifting state.

5. The multi-station loading and unloading device according to claim 4, characterized in that: The multi-station loading and unloading device also includes a first driving member (514). The first lifting component (51) includes a first guide rod (511), a first bearing plate (512) and a first connecting plate (513). The first driving member (514) is arranged on the transfer platform (50). The first guide rod (511) passes through the transfer platform (50) and is slidably connected with the transfer platform (50). The two ends of the first guide rod (511) are respectively connected to the first bearing plate (512) and the first connecting plate (513). The power output end of the first driving member (514) is connected to the first bearing plate (512). The first bearing plate (512) is used to abut against the material tray (6) on the waiting station (40). The first driving member (514) drives the first bearing plate (512) to lift the material tray (6) on the waiting station (40).

6. The multi-station loading and unloading device according to claim 4, characterized in that: The multi-station loading and unloading device also includes a second driving member (524), the second lifting assembly (52) includes a second guide rod (521), a second bearing plate (522) and a second connecting plate (523), the second driving member (524) is arranged on the frame (1), the second guide rod (521) passes through the transfer platform (50) and is slidably connected with the transfer platform (50), and the two ends of the second guide rod (521) are respectively connected to the second bearing plate (522) and the second connecting plate (523), the second bearing plate (522) is used to abut against the material tray (6) on the lower disk bin (3), when the transfer platform (50) transfers the material tray (6) on the positioning station (10) to the lower disk bin (3), the second driving member (524) drives the second bearing plate (522) to lift the material tray (6) of the lower disk bin (3).

7. The multi-station loading and unloading device according to claim 6, characterized in that: The transfer platform (50) is provided with an avoidance groove (501) capable of allowing the second guide rod (521) to pass through, and the avoidance groove (501) extends along the moving direction of the transfer platform (50) to avoid the second guide rod (521) when the transfer platform (50) moves.

8. The multi-station loading and unloading device according to claim 4, characterized in that: The multi-station loading and unloading device also includes a third driving member (534), the third lifting assembly (53) includes a third guide rod (531), a third bearing plate (532) and a third connecting plate (533), the third driving member (534) is arranged on the frame (1), the third connecting plate (533) is arranged at the power output end of the third driving member (534), the two ends of the third guide rod (531) are respectively connected to the third bearing plate (532) and the third connecting plate (533), the third bearing plate (532) is used to abut against the material tray (6) transferred from the waiting station (40) to the positioning station (10), and the third driving member (534) drives the third connecting plate (533), the third guide rod (531) and the third bearing plate (532) to lift the material tray (6) transferred from the waiting station (40) to the positioning station (10).

9. The multi-station loading and unloading device according to claim 4, characterized in that: A positioning plate (11) is provided on the frame (1) at a position corresponding to the positioning station (10); a window (110) is provided on the positioning plate (11) corresponding to an area on the material tray (6) where the material pieces are placed; when the third lifting assembly (53) lifts the material tray (6), the edge of the material tray (6) abuts against the positioning plate (11).

10. The multi-station loading and unloading device according to claim 1, characterized in that: The upper tray bin (2) comprises a first mounting plate (21), a clamping assembly (22) and a fourth lifting assembly (23); the clamping assembly (22) is arranged on the first mounting plate (21); the fourth lifting assembly (23) is arranged on the frame (1); the first mounting plate (21) is arranged on the frame (1) and two of the first mounting plates (21) are arranged; a first accommodating space (210) for accommodating a plurality of stacked trays (6) is formed between the two first mounting plates (21); the clamping assembly (22) is used to clamp the trays (6) in the first accommodating space (210); and the fourth lifting assembly (23) is used to lift the trays (6) in the first accommodating space (210).

Images