Overturning, stacking and supporting device

Abstract

The invention relates to the technical field of food production automation equipment, in particular to an overturning and stacking device which comprises a conveying mechanism used for bearing trays transferred by a tray knocking machine, the conveying mechanism comprises a plurality of conveying rollers of the same structure, and a righting mechanism used for pushing the trays to be perpendicular to the conveying rollers is arranged on the conveying mechanism. A turnover mechanism used for turning over the tray is arranged on one side edge of the righting mechanism and connected with a machine frame, two oppositely-arranged containing plates are fixed to the machine frame through screws, chain wheel sets are arranged on the two containing plates and connected through a chain, a motor used for driving the chain wheel sets to move is arranged on the machine frame, and the chain wheel sets are connected through a chain. A clamping mechanism used for clamping one side edge of the tray is arranged on the two chains, a transferring mechanism used for bearing and transferring the stacked trays is arranged below the rack, and the problem that in the prior art, the tray used for bearing the rice dumplings relies on manpower during backflow, and the efficiency is low is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of food production automation equipment, and in particular relates to a flipping and stacking device. Background Art

[0002] At present, the transfer pallets used in the production process of quick-frozen foods, especially glutinous rice balls, are mostly made of food-grade PP and PET materials to adapt to low-temperature environments. The physical properties of the pallets are relatively soft. At present, there are corresponding devices or equipment in the front-end opening, loading and loading processes on the market to achieve automated production. There is no corresponding automated equipment in the stacking, flipping and reflowing process after freezing. Due to the physical properties, size, discharge height, production rhythm and other reasons of the pallets, they are basically flipped and stacked manually, and manually transferred to the loading equipment, or partially transported by conveyors. Since this process needs to follow the continuous production of the main production line, the labor intensity of the workers is high and the time is long, which has become a bottleneck for achieving full-line automated production. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a flipping and stacking device to solve the problem of low efficiency of relying on manual labor when reflowing the trays used to carry glutinous rice balls in the prior art.

[0004] The technical solution is: a flipping and stacking device comprises a conveying mechanism for receiving a pallet transferred by a pallet knocking machine, the conveying mechanism comprises a plurality of conveying rollers of the same structure, the conveying mechanism is provided with a straightening mechanism for pushing the pallet to be perpendicular to the conveying rollers, a flipping mechanism for turning the pallet over is provided on one side of the straightening mechanism, the flipping mechanism is connected to a frame, two oppositely arranged placement plates are fixed with screws on the frame, sprocket sets are provided on both placement plates, the sprocket sets are connected by chains, a motor for driving the sprocket sets to move is provided on the frame, a clamping mechanism for clamping one side of the pallet is provided on the two chains, so that after the pallet moves to the flipping mechanism via the straightening mechanism, the clamping mechanism drives the pallet to move to a set position under the action of the sprocket and completes the flipping action, and a transfer mechanism for receiving and transferring the stacked pallets is provided under the frame.

[0005] Preferably, the straightening mechanism includes a frame fixed to one end of the conveying mechanism near the flipping mechanism, and a push rod motor is provided on the frame. There are multiple push rod motors and they are all located at the corners of the frame. A push rod is provided on the output shaft of the push rod motor. When the tray moves to the frame position, the push rod motor drives the push rod to move, and the tray will move under the action of the push rod.

[0006] Preferably, the clamping mechanism comprises a fixing rod, and a fixing clamp which is normally closed is provided at a position of the fixing rod close to the two chains, and the fixing clamp comprises a clamp body, and the clamp body is rotatably connected to a clamp plate, and a spring is provided between the clamp plate and the clamp body.

[0007] Preferably, the sprocket set includes a first sprocket, a second sprocket, a third sprocket, and a fourth sprocket. The chain sequentially passes through the first sprocket, the second sprocket, the third sprocket, and the fourth sprocket to form a rectangular ring structure. Cam rollers for squeezing the clamping plates are provided on the first sprocket and the fourth sprocket. When the clamping mechanism passes through the first sprocket, the fixed clamp opens to clamp the tray. When the clamping mechanism drives the tray to move to the fourth sprocket through the second sprocket and the third sprocket, the fixed clamp is opened again and the tray drops off.

[0008] Preferably, a guide plate is provided on one side of the frame, and a support plate is provided between the two placement plates. The support plate has a "C" - shaped structure.

[0009] Preferably, the transfer mechanism includes a carrier plate for carrying the tray, a lifting conveyor for driving the carrier plate to move is provided inside the frame, a first conveyor belt for moving the carrier plate onto the lifting conveyor is provided on one side of the frame, and a second conveyor belt for transferring the carrier plate and the tray on the lifting conveyor is provided on the other side of the frame.

[0010] Preferably, a movable transition plate is provided at one end of the frame close to the placement plate. There are two transition plates which are symmetrically arranged about the mid - line of the frame, and a driving mechanism for driving the transition plate to move is provided on the frame.

[0011] The beneficial effects of the present invention are as follows: By setting up a conveying mechanism, a straightening mechanism, a flipping mechanism, a clamping mechanism, and a transfer mechanism, the full - process automated operation of the tray from receiving, straightening, flipping, descending and stacking to transferring is realized, changing the traditional manual operation mode, effectively reducing the labor intensity. In view of the relatively soft physical properties of food - grade PP and PET trays, the straightening mechanism uses multiple push - rod motors and push rods to push the tray from the corners to ensure that the tray is in a straightened position on the conveying mechanism. The fixed clamp of the clamping mechanism adopts the method of spring closing and cam - controlled opening, which is convenient for driving the tray to move.

[0012] The transmission structure of the sprocket set and the chain, combined with the drive of the motor, can realize the control of the flipping and moving position of the tray. The settings of the positions of each sprocket in the sprocket set and the shape of the cam ensure the accurate movement of the tray during flipping and moving. The settings of components such as the placement plate, the guide plate, and the support plate facilitate the movement of the tray inside the flipping mechanism. The lifting conveyor, the first conveyor belt, and the second conveyor belt in the transfer mechanism cooperate with each other to realize the efficient transfer and orderly stacking of the trays. The movable transition plate can adjust its position under the action of the driving mechanism according to the actual production requirements, further improving the adaptability of the equipment to different production scenarios and facilitating the transfer and subsequent processing of the trays. Description of the Drawings

[0013] Figure 1It is a perspective view of a flipping stacking device of the present invention; Figure 2 It is an enlarged view of part A of the perspective view of a flipping stacking device of the present invention; Figure 3 It is a structural diagram of a flipping mechanism of a flipping stacking device of the present invention; Figure 4 It is a perspective view of a clamping mechanism of a flipping stacking device of the present invention.

[0014] Wherein: 1 is a conveying mechanism, 2 is a conveying roller, 3 is a frame, 4 is a placement plate, 5 is a chain, 6 is a motor, 7 is a frame body, 8 is a push rod motor, 9 is a push rod, 10 is a fixed rod, 11 is a clamping body, 12 is a clamping plate, 13 is a spring, 14 is a first sprocket, 15 is a second sprocket, 16 is a third sprocket, 17 is a fourth sprocket, 18 is a cam, 19 is a guide plate, 20 is a bearing plate, 21 is a lifting conveyor, 22 is a first conveyor belt, 23 is a second conveyor belt, 24 is a transition plate, 25 is a driving mechanism. Detailed implementation manners

[0015] The following further describes the detailed implementation manners of the present invention with reference to the accompanying drawings of the specification.

[0016] Embodiment 1: As shown in the accompanying drawings of the specification, a flipping and stacking device includes a conveying mechanism 1 for receiving the transfer trays of the chip mounter. The conveying mechanism 1 belongs to the prior art and includes a plurality of conveying rollers 2 with the same structure. A straightening mechanism for pushing the trays perpendicular to the conveying rollers 2 is arranged on the conveying mechanism 1. The straightening mechanism includes a frame body 7 fixed to one end of the conveying mechanism 1 close to the flipping mechanism by bolts. A push rod motor 8 is fixed to the frame body 7 by mounting seat screws. There are multiple push rod motors 8 and they are all located at the corner positions of the frame body 7. A push rod 9 is fixed to the output shaft of the push rod motor 8 by screws. The push rod 9 has a "U" - shaped structure and is located within the gaps of the conveying rollers 2. When the tray moves to the position of the frame body 7, the push rod motor 8 drives the push rod 9 to move, and the tray will move under the action of the push rod 9. A flipping mechanism for flipping the tray is arranged on one side of the straightening mechanism. The flipping mechanism is connected to a frame 3 by screws. Two oppositely arranged placing plates 4 are fixed to the frame 3 by screws. Sprocket groups are arranged on both of the two placing plates 4. The sprocket groups are connected by a chain 5. A motor 6 for driving the sprocket group to move is fixed to the frame 3 by mounting seat screws. The sprocket group includes a first sprocket 14, a second sprocket 15, a third sprocket 16, and a fourth sprocket 17. The chain 5 passes through the first sprocket 14, the second sprocket 15, the third sprocket 16, and the fourth sprocket 17 in sequence to form a rectangular ring structure. Clamping mechanisms for clamping one side of the tray are arranged on the two chains 5, forming a structure in which after the tray moves to the flipping mechanism through the straightening mechanism, the clamping mechanism drives the tray to move to a set position and completes the flipping action under the action of the sprockets. There are multiple clamping mechanisms and they are evenly spaced on the chain 5. The clamping mechanism includes a fixing rod 10 fixed to the chain 5 by screws. Fixed clamps that are normally in a closed state are arranged at positions close to the two chains 5 on the fixing rod 10. The fixed clamp includes a clamp body 11 connected to the fixing rod 10. A clamping plate 12 is rotatably connected to the clamp body 11. A spring 13 for resetting is arranged between the clamping plate 12 and the clamp body 11. Cam 18 for squeezing the clamping plate 12 is arranged on both the first sprocket 14 and the fourth sprocket 17, forming a structure in which when the clamping mechanism passes through the first sprocket 14, the fixed clamp opens to clamp the tray, and when the clamping mechanism drives the tray to move to the fourth sprocket 17 through the second sprocket 15 and the third sprocket 16, the fixed clamp is opened again and the tray drops. A transfer mechanism for receiving and transferring the stacked trays is arranged below the frame 3. The transfer mechanism includes a bearing plate 20 for bearing the trays. An elevating conveyor 21 for driving the bearing plate 20 to move is arranged inside the frame 3. The elevating conveyor 21 belongs to the prior art. A first conveyor belt 22 for moving the bearing plate 20 onto the elevating conveyor 21 is arranged on one side of the frame 3. An AGV cart is used to transfer the bearing plate 20 when it is on the first conveyor belt 22. A second conveyor belt 23 for transferring the bearing plate 20 and the trays on the elevating conveyor 21 is arranged on the other side of the frame 3. An AGV cart is used to remove the bearing plate 20 and the trays on the second conveyor belt 23.

[0017] In one embodiment, according to the attached Figure 3 As shown, a guide plate 19 is fixed by screws on one side of the frame 3 to prevent the tray from moving outward. A support plate is arranged between the two placement plates 4 to support the middle position of the support plate, and the support plate is in a "C" shape.

[0018] In one embodiment, according to the attached Figure 1 As shown, a movable transition plate 24 is provided at one end of the frame 3 close to the placement plate 4. There are two transition plates 24 and they are symmetrically arranged about the center line of the frame 3. A driving mechanism 25 for driving the transition plate 24 to move is provided on the frame 3. After the pallets are stacked to a set number, the transition plate is closed from both sides to the middle under the action of the driving mechanism 25 to temporarily receive the falling pallets. When the lifting conveyor 21 arrives at the stacking position with the carrying plate 20, the transition plate is opened to both sides at the same time, and the temporarily stacked pallets fall onto the carrying plate 20, and the stacking action continues.

[0019] The operating principle of the present invention is as follows: 1. Pallet receiving and straightening: The pallet knocking machine places the transferred pallet on the conveying roller of the conveying mechanism, and the pallet moves toward the straightening mechanism under the drive of the conveying roller. When the pallet moves to the frame position of the straightening mechanism, the push rod motor on the frame is started, and the output shaft of the push rod motor drives the push rod to move. Multiple push rods push the pallet from the corner position of the frame, so that the pallet moves to a direction perpendicular to the conveying roller under the action of the push rod, completing the straightening operation of the pallet.

[0020] 2. Pallet flipping: The straightened pallet continues to move to the flipping mechanism. At this time, the clamping mechanism moves to the first sprocket position with the transmission of the chain, and the cam on the first sprocket squeezes the clamp to open the fixed clamp. The opened fixed clamp clamps one side of the pallet, and then the clamping mechanism moves along the second sprocket and the third sprocket driven by the chain. When the clamping mechanism moves to the fourth sprocket position, the cam on the fourth sprocket squeezes the clamp again, the fixed clamp opens, and the pallet falls under the action of gravity, realizing the flipping action of the pallet. During the pallet flipping process, the guide plate and the support plate guide and support the pallet to ensure that the pallet flipping process is stable and accurate.

[0021] 3. Pallet descent and stacking: The flipped pallet falls onto the load-bearing plate of the transfer mechanism under the rack. Under the action of the lifting conveyor, the load-bearing plate descends accordingly according to the number and height requirements of the pallets to be stacked, so that the pallets can be stacked on the load-bearing plate in an orderly manner.

[0022] 4. Pallet transfer: When the pallets on the carrier plate are stacked to the set quantity, the first conveyor belt starts and moves the carrier plate onto the lifting conveyor. Then the lifting conveyor raises the carrier plate to an appropriate height, and the second conveyor belt starts to transfer the carrier plate and the stacked pallets on it to the designated position, completing the pallet transfer process. During the pallet transfer process, the movable transition plate adjusts its position under the action of the driving mechanism according to actual needs to assist the smooth transfer of the pallets and ensure the smooth and efficient operation of the entire equipment.

[0023] The above has described the present invention in detail through specific implementation manners and embodiments, but these do not constitute limitations to the present invention. Without departing from the principle of the present invention, those skilled in the art can also make many deformations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A flipping stacking device, comprising a conveying mechanism (1) for receiving the transfer trays of a knocking machine, the conveying mechanism (1) including a plurality of conveying rollers (2) with the same structure, characterized in that: The conveying mechanism (1) is provided with a straightening mechanism for pushing the pallet to be perpendicular to the conveying roller (2), and a flipping mechanism for flipping the pallet is provided on one side of the straightening mechanism. The flipping mechanism is connected to a frame (3), and two oppositely arranged placement plates (4) are fixed by screws on the frame (3). Both placement plates (4) are provided with sprocket groups, and the sprocket groups are connected by chains (5). The frame (3) is provided with a motor (6) for driving the sprocket groups to move. The two chains (5) are provided with clamping mechanisms for clamping one side of the pallet, so that after the pallet moves from the straightening mechanism to the flipping mechanism, the clamping mechanism drives the pallet to move to a set position under the action of the sprocket and completes the flipping action. A transfer mechanism for receiving and transferring stacked pallets is provided below the frame (3).

2. The flipping and stacking device according to claim 1, characterized in that: The straightening mechanism comprises a frame (7) fixed to one end of the conveying mechanism (1) near the flipping mechanism, a push rod motor (8) is arranged on the frame (7), there are a plurality of push rod motors (8) and all are located at the corners of the frame (7), a push rod (9) is arranged on the output shaft of the push rod motor (8), when the tray moves to the position of the frame (7), the push rod motor (8) drives the push rod (9) to move, and the tray moves under the action of the push rod (9).

3. A turnover stacking device according to claim 1, characterized in that: The clamping mechanism comprises a fixing rod (10), wherein a fixing clamp which is normally in a closed state is arranged at a position of the fixing rod (10) close to the two chains (5), wherein the fixing clamp comprises a clamp body (11), wherein the clamp body (11) is rotatably connected to a clamp plate (12), and a spring (13) is arranged between the clamp plate (12) and the clamp body (11).

4. The turnover stacking device according to claim 3, characterized in that: The sprocket assembly comprises a first sprocket (14), a second sprocket (15), a third sprocket (16) and a fourth sprocket (17); the chain (5) passes through the first sprocket (14), the second sprocket (15), the third sprocket (16) and the fourth sprocket (17) in sequence to form a rectangular ring structure; the first sprocket (14) and the fourth sprocket (17) are provided with cams (18) for squeezing the clamping plate (12), so that when the clamping mechanism passes through the first sprocket (14), the fixing clamp is opened to clamp the pallet; when the clamping mechanism drives the pallet to move to the fourth sprocket (17) via the second sprocket (15) and the third sprocket (16), the fixing clamp is opened again and the pallet falls.

5. The turnover stacking device according to claim 3, characterized in that: A guide plate (19) is provided on one side of the frame (3), and a support plate is provided between the two placement plates (4), wherein the support plate has a "C"-shaped structure.

6. The turnover stacking device according to claim 1, characterized in that: The transfer mechanism comprises a carrying plate (20) for carrying a pallet, a lifting conveyor (21) for driving the carrying plate (20) to move is arranged in a frame (3), a first conveyor belt (22) for moving the carrying plate (20) onto the lifting conveyor (21) is arranged on one side of the frame (3), and a second conveyor belt (23) for transferring the carrying plate (20) and the pallet on the lifting conveyor (21) is arranged on the other side of the frame (3).

7. The turnover stacking device according to claim 6, characterized in that: One end of the frame (3) close to the placing plate (4) is provided with a movable transition plate (24). There are two transition plates (24) which are symmetrically arranged about the center line of the frame (3). A driving mechanism (25) for driving the transition plate (24) to move is arranged on the frame (3).

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