Circulating conveying device with turnover basket posture keeping function

Abstract

The invention discloses a circulating conveying device with a turnover basket posture keeping function, and belongs to the field of light industrial product flow line production equipment. Comprising a rack composed of a front frame body and a rear frame body; the turnover basket traction chain driving mechanism is arranged between the left ends of the front frame body and the rear frame body; the turnover basket front traction chain is arranged on the side, facing the rear frame body, of the front frame body, and the turnover basket rear traction chain is arranged on the side, facing the front frame body, of the rear frame body; the turnover basket is arranged between the turnover basket front traction chain and the turnover basket rear traction chain and is characterized by further comprising a turnover basket posture front left retaining plate, a turnover basket posture rear left retaining plate and a turnover basket posture rear right retaining plate which are located at the same height; and a turnover basket moving guide mechanism is arranged at the bottom of the turnover basket and is connected between the front traction chain and the rear traction chain of the turnover basket in a state that the turnover basket moving guide mechanism, the front frame body and the rear frame body form a rolling pair. The device has the advantages that a good upper-lower layer structure is embodied, the occupied space is reduced, the excellent integration degree is embodied, the operation path is remarkably shortened, and the operation efficiency is improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of light industrial product assembly line production equipment, and particularly relates to a circulating transmission device with a function of maintaining the posture of turnover baskets. Background Art

[0002] Typical examples of the above-mentioned light industrial products are clothing, and the concept and positive significance of clothing production assembly lines can be fully understood by reading patent documents such as CN102807061B, CN203728035U, CN112875174A, CN202276226U, KR20160026659A, DE414405761A1, JP2000-219309A, US4050575A, and EP0623530A1. In particular, a more thorough understanding can be obtained by reading the "circulating transmission device" recommended by CN107117439B and the "single- and double-line interchangeable assembly line" provided by CN116142691A.

[0003] According to professional common sense, as long as the transmission device of the turnover basket is designed to be single-layer and have a circular running track structure, it is completely possible to make the turnover basket move in a cycle on the same horizontal plane without changing the posture of the turnover basket. For example, the situation where the mouth of the turnover basket faces up and down alternately will not occur, and the aforementioned CN107117439B is like this. However, the aforementioned structure is large in volume and easily occupies valuable space in the workshop. If it is a structure like CN116142691A, since it is designed to be double-layer, the length can be significantly shortened in the length direction, effectively reducing the space occupied in the workshop. However, after the turnover basket moves to the end point and turns, that is, when the turnover basket is located on the lower layer, the posture of the turnover basket changes relative to the posture of the upper layer during movement. Specifically, when moving on the upper layer, the mouth of the turnover basket faces up, and the items in the basket will not fall to the floor. When transferred to the lower layer for movement, the mouth of the turnover basket faces down, and there are no items in the basket, otherwise the items will pour out. Moreover, if the items in the turnover basket need to be intelligently scheduled to any workstation on the production line, reflecting the superiority and convenience that the workstations do not need to be rearranged every time the style changes, it is often necessary for the turnover basket to be able to move in a cycle within the assembly line to form a closed loop. If the turnover basket can only move on the upper layer and cannot form a closed loop, then the turnover basket cannot move in a cycle and be smoothly and intelligently scheduled to the designated workstation, thus failing to achieve the purpose of intelligent scheduling.

[0004] For example: At workstation No. 10 on the production line, in the running direction of the assembly line, its next workstation is No. 11, and the previous workstation is No. 9. That is, the running order of the turnover baskets is to pass through No. 9 first, then No. 10, and then No. 11, and so on. If, according to the scheduling requirements of the sewing process sequence, after workstation No. 10 is completed, the next one is No. 9, instead of No. 11, which is behind workstation No. 10. And the running direction of the assembly line remains the same. This requires the assembly line to send the objects completed at workstation No. 10 to the very end of the assembly line. Then the turnover basket is transferred from the upper layer to the lower layer of the assembly line. Moreover, during the transfer process, the turnover basket should keep its opening facing upwards to ensure that the objects inside the turnover basket will not fall out. When the turnover basket with the objects runs in the lower layer in the opposite direction to the upper layer, it will pass through workstation No. 9 again, so that the objects can be smoothly sent to workstation No. 9. The transportation path is the shortest and the transportation is the most efficient. Of course, according to the intelligent scheduling requirements, if there is inventory at workstation No. 9 and it is not needed to be taken out temporarily, the objects still need to be temporarily stored in the turnover basket on the assembly line as buffer inventory and continue to run, passing through the lower layer and reaching the front end of the assembly line. Then the turnover basket is transferred from the lower layer to the upper layer again, and it will pass through workstation No. 9 again when running in the upper layer. This is a relatively long transportation path, which is also determined by the algorithm of the control system. But anyway, objectively, it is required that the turnover basket on the assembly line must be able to operate in a closed loop. When converting between the upper and lower layers, the opening of the turnover basket remains upward and the objects cannot fall out. Furthermore, the number of the turnover baskets in the aforementioned CN116142691A is also subject to certain restrictions. This is because although it is in the form of upper and lower layers, objectively it is like a single layer. Because as mentioned above, when the turnover basket is moving in the lower layer, no objects can be stored inside the basket.

[0005] Based on the above existing technical situation, for exploring and designing a double-layer structure that can achieve good aggregation, save space occupancy, meet the requirements of no need to rearrange workstations in the case of small batches and multiple varieties, and keep the postures of the turnover baskets in the upper and lower layers with their openings facing upwards, the circulating transmission device has subversive positive significance. The technical solution to be introduced below is generated under this background. Summary of the Invention

[0006] The object of the present invention is to provide a circulating transmission device with a turnover basket posture maintaining function, which helps to reflect a good upper and lower layer structure, significantly reduce space occupancy, significantly shorten the running path and improve the running efficiency, and reflect excellent aggregation. It is beneficial to keep the posture of the turnover basket moving in the lower layer always consistent with the posture of the turnover basket moving in the upper layer, so as to reflect the real double-layer effect, and it is convenient for the workstation workers to pick up or place objects from the upper or lower layer, and is beneficial to meet the requirements of no need to rearrange workstations in the case of small batches and multiple varieties, thus reflecting good adaptability to the process requirements.

[0007] The task of the present invention is accomplished as follows. A circulating transmission device with a function of maintaining the attitude of turnover baskets includes a frame, which is composed of a front frame body and a rear frame body that are arranged face to face with each other and are connected as a whole between the opposite sides in the length direction; a turnover basket traction chain driving mechanism, which is arranged between the left ends of the front and rear frame bodies; a turnover basket front traction chain and a turnover basket rear traction chain that correspond to each other front and rear and are each in an endless loop shape. The turnover basket front traction chain is arranged on the side of the front frame body facing the rear frame body, and the turnover basket rear traction chain is arranged on the side of the rear frame body facing the front frame body. The turnover basket traction chain driving mechanism is in transmission connection with the turnover basket front traction chain and the turnover basket rear traction chain; a turnover basket, which is arranged at intervals between the turnover basket front and rear traction chains. It is characterized in that it further includes a front left and right turnover basket attitude maintaining plate, a rear left turnover basket attitude maintaining plate, and a rear right turnover basket attitude maintaining plate at the same height. The front left turnover basket attitude maintaining plate is fixed on the side of the left end of the front frame body facing the rear frame body, and the front right turnover basket attitude maintaining plate is fixed on the side of the right end of the front frame body facing the rear frame body. The rear left turnover basket attitude maintaining plate is fixed on the side of the left end of the rear frame body facing the front frame body in a state corresponding to the front left turnover basket attitude maintaining plate, and the rear right turnover basket attitude maintaining plate is fixed on the side of the right end of the rear frame body facing the front frame body in a state corresponding to the front right turnover basket attitude maintaining plate; a turnover basket moving guide mechanism is arranged at the bottom of the turnover basket. The turnover basket moving guide mechanism is connected between the turnover basket front and rear traction chains in a state of forming a rolling pair with the front and rear frame bodies, and under the traction of the turnover basket front and rear traction chains, when the turnover basket moving guide mechanism carries the turnover basket and moves from right to left in a state of forming a rolling pair with the upper opposite side of the front and rear frame bodies to a position between the upper parts of the front and rear left turnover basket attitude maintaining plates, the turnover basket moving guide mechanism turns left and moves downward in a state of forming a rolling pair with the opposite side of the front and rear left turnover basket attitude maintaining plates, and when it moves to a position between the bottoms of the front and rear left turnover basket attitude maintaining plates, it turns right and moves from left to right in a state of forming a rolling pair with the lower opposite side of the front and rear frame bodies to a position between the lower parts of the front and rear right turnover basket attitude maintaining plates, the turnover basket moving guide mechanism turns right and moves upward, and when it moves to a position between the tops of the front and rear right turnover basket attitude maintaining plates, it turns left and moves from right to left again along the upper parts of the front and rear frame bodies.

[0008] In a specific embodiment of the present invention, the front frame body has a front frame upper beam and a front frame lower beam. A front frame upper beam guide bar is fixed at the rear side in the length direction of the front frame upper beam and at a position between the upper parts of the front left and right holding plates in the turnover basket posture. And a front frame lower beam guide bar is fixed at the rear side in the length direction of the front frame lower beam and at a position between the lower parts of the front left and right holding plates in the turnover basket posture; the rear frame body has a rear frame upper beam and a rear frame lower beam. A rear frame upper beam guide bar is fixed at the front side in the length direction of the rear frame upper beam and at a position between the upper parts of the rear left and right holding plates in the turnover basket posture. And a rear frame lower beam guide bar is fixed at the front side in the length direction of the rear frame lower beam and at a position between the lower parts of the rear left and right holding plates in the turnover basket posture; the left end of the front frame upper beam guide bar is connected to the upper end of the front left holding plate in the turnover basket posture, and the right end of the front frame upper beam guide bar is connected to the upper end of the front right holding plate in the turnover basket posture. The left end of the front frame lower beam guide bar is connected to the lower end of the front left holding plate in the turnover basket posture, and the right end of the front frame lower beam guide bar is connected to the lower end of the front right holding plate in the turnover basket posture; the left end of the rear frame upper beam guide bar is connected to the upper end of the rear left holding plate in the turnover basket posture, and the right end of the rear frame upper beam guide bar is connected to the upper end of the rear right holding plate in the turnover basket posture. The left end of the rear frame lower beam guide bar is connected to the lower end of the rear left holding plate in the turnover basket posture, and the right end of the rear frame lower beam guide bar is connected to the lower end of the rear right holding plate in the turnover basket posture; the turnover basket linear movement guiding mechanism carries the turnover basket to form rolling pairs with the front frame upper beam guide bar, the rear frame upper beam guide bar, the front frame lower beam guide bar and the rear frame lower beam guide bar.

[0009] In another specific embodiment of the present invention, the left end of the front traction chain of the turnover basket is sleeved on the upper and lower corresponding upper left sprocket of the front traction chain of the turnover basket and the lower left sprocket of the front traction chain of the turnover basket. The upper left sprocket of the front traction chain of the turnover basket is arranged at the rear end of the upper left sprocket shaft of the front traction chain of the turnover basket. The middle part of the upper left sprocket shaft of the front traction chain of the turnover basket is rotatably arranged on the bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket through the bearing of the upper left sprocket shaft of the front traction chain of the turnover basket. The front end of the upper left sprocket shaft of the front traction chain of the turnover basket extends forward. The bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket is arranged on the upper left part of the front frame body in a left-right adjustable manner. The lower left sprocket of the front traction chain of the turnover basket is arranged at the rear end of the lower left sprocket shaft of the front traction chain of the turnover basket. The middle part of the lower left sprocket shaft of the front traction chain of the turnover basket is rotatably arranged on the bearing seat of the lower left sprocket shaft of the front traction chain of the turnover basket through the bearing of the lower left sprocket shaft of the front traction chain of the turnover basket. The front end of the lower left sprocket shaft of the front traction chain of the turnover basket extends forward. The bearing seat of the lower left sprocket shaft of the front traction chain of the turnover basket is arranged on the lower left part of the front frame body in a left-right adjustable manner. The right end of the front traction chain of the turnover basket is sleeved on the upper and lower corresponding upper right sprocket of the front traction chain of the turnover basket and the lower right sprocket of the front traction chain of the turnover basket. The upper right sprocket of the front traction chain of the turnover basket is arranged at the rear end of the upper right sprocket shaft of the front traction chain of the turnover basket. The middle part of the upper right sprocket shaft of the front traction chain of the turnover basket is rotatably arranged on the bearing seat of the upper right sprocket shaft of the front traction chain of the turnover basket through the bearing of the upper right sprocket shaft of the front traction chain of the turnover basket. The front end of the upper right sprocket shaft of the front traction chain of the turnover basket extends forward. The bearing seat of the upper right sprocket shaft of the front traction chain of the turnover basket is arranged on the upper right part of the front frame body in a left-right adjustable manner. The lower right sprocket of the front traction chain of the turnover basket is arranged at the rear end of the lower right sprocket shaft of the front traction chain of the turnover basket. The middle part of the lower right sprocket shaft of the front traction chain of the turnover basket is rotatably arranged on the bearing seat of the lower right sprocket shaft of the front traction chain of the turnover basket through the bearing of the lower right sprocket shaft of the front traction chain of the turnover basket. The front end of the lower right sprocket shaft of the front traction chain of the turnover basket extends forward. The bearing seat of the lower right sprocket shaft of the front traction chain of the turnover basket is arranged on the lower right part of the front frame body in a left-right adjustable manner. Among them, the rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket extend to the rear side of the front left holding plate of the turnover basket posture, and the upper and lower sprockets of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket at positions behind the front left holding plate of the turnover basket posture. The rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket extend to the rear side of the front right holding plate of the turnover basket posture, and the upper and lower sprockets of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket at positions behind the front right holding plate of the turnover basket posture;The left end of the turnover basket rear traction chain is sleeved on the upper left sprocket of the turnover basket rear traction chain and the lower left sprocket of the turnover basket rear traction chain which correspond to each other up and down. The upper left sprocket of the turnover basket rear traction chain is arranged at the front end of the upper left sprocket shaft of the turnover basket rear traction chain. The middle part of the upper left sprocket shaft of the turnover basket rear traction chain is rotatably arranged on the upper left sprocket shaft supporting bearing seat of the turnover basket rear traction chain through the upper left sprocket shaft bearing of the turnover basket rear traction chain, and the rear end of the upper left sprocket shaft of the turnover basket rear traction chain extends backward. The upper left sprocket shaft supporting bearing seat of the turnover basket rear traction chain is adjusted left and right and arranged at the upper left end of the rear frame body. The lower left sprocket of the turnover basket rear traction chain is arranged at the front end of the lower left sprocket shaft of the turnover basket rear traction chain. The middle part of the lower left sprocket shaft of the rear traction chain is rotatably arranged on the supporting bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket through the bearing of the lower left sprocket shaft of the rear traction chain of the turnover basket, and the rear end of the lower left sprocket shaft of the rear traction chain of the turnover basket extends backward, and the supporting bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket is adjusted left and right and arranged at the lower left end of the rear frame body, and the right end of the rear traction chain of the turnover basket is sleeved on the upper right sprocket of the rear traction chain of the turnover basket and the lower right sprocket of the rear traction chain of the turnover basket corresponding to each other up and down, and the upper right sprocket of the rear traction chain of the turnover basket is arranged at the front end of the upper right sprocket shaft of the rear traction chain of the turnover basket, and the middle part of the upper right sprocket shaft of the rear traction chain of the turnover basket is rotatably arranged at the rear of the turnover basket through the bearing of the upper right sprocket shaft of the rear traction chain of the turnover basket The traction chain is supported on the right upper sprocket shaft bearing seat, and the rear end of the upper right sprocket shaft of the turnover basket rear traction chain extends backward, and the upper right sprocket shaft supporting bearing seat of the turnover basket rear traction chain is adjusted left and right and arranged at the upper right end of the rear frame body, and the lower right sprocket of the turnover basket rear traction chain is arranged at the front end of the lower right sprocket shaft of the turnover basket rear traction chain, and the middle part of the lower right sprocket shaft of the turnover basket rear traction chain is rotatably arranged on the lower right sprocket shaft supporting bearing seat of the turnover basket rear traction chain through the lower right sprocket shaft bearing of the turnover basket rear traction chain, and the rear end of the lower right sprocket shaft of the turnover basket rear traction chain extends backward, and the lower right sprocket shaft supporting bearing seat of the turnover basket rear traction chain is adjusted left and right and arranged at the lower right end of the right frame body, wherein, the turnover basket rear traction chain The rear ends of the upper left and lower sprocket shafts of the chain extend to the rear side of the left holding plate behind the turnover basket, and the upper left and lower sprockets of the turnover basket rear traction chain are respectively fixed to the front ends of the upper left and lower sprocket shafts of the turnover basket rear traction chain at the positions in front of the left holding plate behind the turnover basket, and the rear ends of the upper right and lower sprocket shafts of the turnover basket rear traction chain extend to the rear side of the right holding plate behind the turnover basket, and the upper right and lower sprockets of the turnover basket rear traction chain are respectively fixed to the front ends of the upper right and lower sprocket shafts of the turnover basket rear traction chain at the positions in front of the right holding plate behind the turnover basket; the turnover basket traction chain driving mechanism is drivingly connected to the lower left sprocket shaft of the turnover basket front traction chain and the lower left sprocket shaft of the turnover basket rear traction chain. ;

[0010] In yet another specific embodiment of the present invention, the upper and lower left sprockets of the front traction chain of the turnover basket, the upper and lower right sprockets of the front traction chain of the turnover basket, the upper and lower left sprockets of the rear traction chain of the turnover basket, the upper right sprocket of the rear traction chain of the turnover basket, and the lower right sprocket of the rear traction chain of the turnover basket are double-row sprockets, and the front traction chain of the turnover basket and the rear traction chain of the turnover basket are double-row chains.

[0011] In still another specific embodiment of the present invention, at the left end of the frame and at a position extending between the left side of the front frame body and the lower left side of the rear frame body, there is a support frame for the turnover basket traction chain driving mechanism; the turnover basket traction chain driving mechanism includes a motor, a reduction gearbox, a reduction gearbox output shaft, a front transmission chain, a driving wheel for the lower left sprocket shaft of the front traction chain of the turnover basket, a rear transmission chain, and a driving wheel for the lower left sprocket shaft of the rear traction chain of the turnover basket. The motor is in driving cooperation with the reduction gearbox with its motor shaft facing downward, and the reduction gearbox together with the motor is fixed to the reduction gearbox fixing beam, and this reduction gearbox fixing beam is fixed to the support frame for the turnover basket traction chain driving mechanism. The front end of the reduction gearbox output shaft is rotatably supported on the front support bearing seat of the reduction gearbox output shaft, and this front support bearing seat of the reduction gearbox output shaft is arranged to be adjusted left and right on the front side of the support frame for the turnover basket traction chain driving mechanism. The rear support bearing seat of the reduction gearbox output shaft is arranged to be adjusted left and right on the rear side of the support frame for the turnover basket traction chain driving mechanism. And a front sprocket of the reduction gearbox output shaft is fixed at the front end of the reduction gearbox output shaft, and a rear sprocket of the reduction gearbox output shaft is fixed at the rear end of the reduction gearbox output shaft. One end of the front transmission chain is sleeved on the front sprocket of the reduction gearbox output shaft, and the other end is sleeved on the driving wheel for the lower left sprocket shaft of the front traction chain of the turnover basket. This driving wheel for the lower left sprocket shaft of the front traction chain of the turnover basket is fixed at the front end of the lower left sprocket shaft of the front traction chain of the turnover basket. One end of the rear transmission chain is sleeved on the rear sprocket of the reduction gearbox output shaft, and the other end is sleeved on the driving wheel for the lower left sprocket shaft of the rear traction chain of the turnover basket. This driving wheel for the lower left sprocket shaft of the rear traction chain of the turnover basket is fixed at the rear end of the lower left sprocket shaft of the rear traction chain of the turnover basket.

[0012] In still another specific embodiment of the present invention, a left front reinforcing frame of the front frame body is additionally provided at the front side of the left end of the front frame body, and a left rear reinforcing frame of the rear frame body is additionally provided at the rear side of the left end of the rear frame body. The opposite sides of the left front and rear reinforcing frames of the front and rear frame bodies are connected by a left reinforcing frame connecting beam. A front support bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket is adjustably provided left and right at a position on the left front reinforcing frame of the front frame body and in front of the support bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket corresponding thereto. A front support bearing seat of the lower left sprocket shaft of the front traction chain of the turnover basket is adjustably provided left and right at a position in front of the support bearing seat of the lower left sprocket shaft of the front traction chain of the turnover basket corresponding thereto. The front end of the upper left sprocket shaft of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket, and the front end of the lower left sprocket shaft of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat of the lower left sprocket shaft of the front traction chain of the turnover basket. A rear support bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket is adjustably provided left and right at a position on the left rear reinforcing frame of the rear frame body and behind the support bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket corresponding thereto. A rear support bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket is adjustably provided left and right at a position behind the support bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket corresponding thereto. The rear end of the upper left sprocket shaft of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket, and the rear end of the lower left sprocket shaft of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket. A right front reinforcing frame of the front frame body is additionally provided at the front side of the right end of the front frame body, and a right rear reinforcing frame of the rear frame body is additionally provided at the rear side of the right end of the rear frame body. The opposite sides of the right front and rear reinforcing frames of the front and rear frame bodies are connected by a right reinforcing frame connecting beam. A front support bearing seat of the upper right sprocket shaft of the front traction chain of the turnover basket is adjustably provided left and right at a position on the right front reinforcing frame of the front frame body and in front of the support bearing seat of the upper right sprocket shaft of the front traction chain of the turnover basket corresponding thereto. A front support bearing seat of the lower right sprocket shaft of the front traction chain of the turnover basket is adjustably provided left and right at a position in front of the support bearing seat of the lower right sprocket shaft of the front traction chain of the turnover basket corresponding thereto. The front end of the upper right sprocket shaft of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat of the upper right sprocket shaft of the front traction chain of the turnover basket, and the front end of the lower right sprocket shaft of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat of the lower right sprocket shaft of the front traction chain of the turnover basket;A rear support bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket is disposed at a position on the right reinforcing frame of the rear frame body and rearward of the support bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket corresponding thereto, and a rear support bearing seat of the lower right sprocket shaft of the rear traction chain of the turnover basket is disposed at a position on the rear side of the support bearing seat of the lower right sprocket shaft of the rear traction chain of the turnover basket and adjustable left and right. The rear end of the upper right sprocket shaft of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket, and the rear end of the lower right sprocket shaft of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat of the lower right sprocket shaft of the rear traction chain of the turnover basket.;

[0013] In a further specific embodiment of the present invention, the structures and fixing methods of the front left and right holding plates of the turnover basket attitude, the rear left holding plate of the turnover basket attitude, and the rear right holding plate of the turnover basket attitude are the same, and the extending methods and extending degrees of the rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket extending to the rear side of the front left holding plate of the turnover basket attitude, the extending methods and extending degrees of the rear ends of the upper and lower sprocket shafts of the front traction chain of the turnover basket extending to the rear side of the front right holding plate of the turnover basket attitude, and the extending methods and extending degrees of the front ends of the upper and lower sprocket shafts of the rear traction chain of the turnover basket extending to the front side of the rear left holding plate of the turnover basket attitude are the same as the extending methods and extending degrees of the front ends of the upper and lower sprocket shafts of the rear traction chain of the turnover basket extending to the front side of the rear right holding plate of the turnover basket attitude.

[0014] In a further specific embodiment of the present invention, a short guide post roller upper guide surface is formed at the top of the left rear retaining plate of the turnover basket posture, and a short guide post roller lower guide surface is formed at the bottom. A pair of long guide post roller guide grooves and a short guide post roller guide groove are formed in the height direction on the left side of the left rear retaining plate of the turnover basket posture. A long guide post roller guiding upper transverse groove is formed at the front side of the upper part of the left rear retaining plate of the turnover basket posture, and a long guide post roller guiding lower transverse groove is formed at the front side of the lower part of the left rear retaining plate of the turnover basket posture. An upper sprocket shaft relief opening is provided at the upper end of the left rear retaining plate of the turnover basket posture and at a position corresponding to the upper left sprocket shaft of the rear traction chain of the turnover basket. A lower sprocket shaft relief opening is provided at the lower end of the left rear retaining plate of the turnover basket posture and at a position corresponding to the lower left sprocket shaft of the rear traction chain of the turnover basket. A pair of upper retaining plate adjustment and fixing screw holes and a pair of lower retaining plate adjustment and fixing screw holes are provided on the left rear retaining plate of the turnover basket posture and at positions between the upper and lower sprocket shaft relief openings. The upper and lower guide surfaces of the short guide post roller correspond to the upper end and the lower end of the short guide post roller guide groove respectively. The long guide post roller guiding upper transverse groove and the long guide post roller guiding lower transverse groove communicate with the upper end and the lower end of the pair of long guide post roller guide grooves respectively through the ∧-shaped transition channel area and the ∨-shaped transition channel area. The front end of the upper left sprocket shaft of the rear traction chain of the turnover basket extends to the front of the left rear retaining plate of the turnover basket posture corresponding to the upper sprocket shaft relief opening, and the upper left sprocket of the rear traction chain of the turnover basket is fixed to the front end of the upper left sprocket shaft of the rear traction chain of the turnover basket at a position corresponding to the front of the left rear retaining plate of the turnover basket posture. The front end of the lower left sprocket shaft of the rear traction chain of the turnover basket extends to the front of the left rear retaining plate of the turnover basket posture corresponding to the lower sprocket shaft relief opening, and the lower left sprocket of the rear traction chain of the turnover basket is fixed to the front end of the lower left sprocket shaft of the rear traction chain of the turnover basket at a position corresponding to the front of the left rear retaining plate of the turnover basket posture. Retaining plate fixing screws are respectively provided at positions corresponding to the pair of upper retaining plate adjustment and fixing screw holes and the pair of lower retaining plate adjustment and fixing screw holes, and the retaining plate fixing screws fix the left rear retaining plate of the turnover basket posture to the front side of the left end of the rear frame body; the right sides of the upper and lower sprocket shaft relief openings are communicated with the outside; a rear frame upper beam guide bar groove is formed at the front side in the length direction of the rear frame upper beam guide bar, and a rear frame lower beam guide bar groove is formed at the rear side in the length direction of the rear frame lower beam guide bar. The rear frame upper beam guide bar groove corresponds to and communicates with the long guide post roller guiding upper transverse groove. The rear frame lower beam guide bar groove corresponds to and communicates with the long guide post roller guiding lower transverse groove b; a front frame upper beam guide bar groove is formed at the front side in the length direction of the front frame upper beam guide bar, and a front frame lower beam guide bar groove is formed at the rear side in the length direction of the front frame lower beam guide bar;The turnover basket linear movement guiding mechanism carries the turnover basket and forms a rolling pair with the upper and lower beam guide grooves of the front frame body, the upper and lower beam guide grooves of the rear frame body, the upper guiding surface of the short guide post roller, the upper transverse guiding groove of the long guide post roller, a pair of long guide post roller guide grooves, the short guide post roller guide groove, the lower guiding surface of the short guide post roller, and the lower transverse guiding groove of the long guide post roller.;

[0015] In yet another specific embodiment of the present invention, the turnover basket linear movement guiding mechanism includes a turnover basket bottom connecting frame, a middle beam of the connecting frame, a front traction chain connecting plate, a rear traction chain connecting plate, a front guide plate, and a rear guide plate. The turnover basket bottom connecting frame is fixed to the downward side of the bottom of the turnover basket. The middle of the middle beam of the connecting frame is located in the middle of the cavity of the turnover basket bottom connecting frame of the turnover basket bottom connecting frame. The front end of the middle beam of the connecting frame extends to the front side of the turnover basket bottom connecting frame and forms a front extension shaft seat of the middle beam of the connecting frame, and the rear end of the middle beam of the connecting frame extends to the rear side of the turnover basket bottom connecting frame and forms a rear extension shaft seat of the middle beam of the connecting frame. A front shaft head extends on the front end face of the front extension shaft seat of the middle beam of the connecting frame, and a rear shaft head extends on the rear extension shaft seat of the middle beam of the connecting frame. The upper end of the front traction chain connecting plate is hinged to the front shaft head, and the lower end of the turnover basket front traction chain is fixedly connected to the front traction chain connecting plate. The upper end of the rear traction chain connecting plate is hinged to the rear shaft head, and the lower end of the turnover basket rear traction chain is fixedly connected to the rear traction chain connecting plate. The front guide plate is located on the front side of the front traction chain connecting plate. The central position of the front guide plate is sleeved on the front shaft head and is fixedly welded to the front shaft head. On the front side face of the front guide plate, there are a pair of front long guide posts and a pair of front short guide posts in a state perpendicular to the front side face of the front guide plate. The pair of front long guide posts and the pair of front short guide posts are arranged in an alternating position relationship with each other, and a front long guide post roller is rotatably arranged at the end of each of the pair of front long guide posts, and a pair of front short guide post rollers are rotatably arranged at the end of each of the pair of front short guide posts. The rear guide plate is located on the rear side of the rear traction chain connecting plate. The central position of the rear guide plate is sleeved on the rear shaft head and is fixedly welded to the rear shaft head. On the rear side face of the rear guide plate, there are a pair of rear long guide posts and a pair of rear short guide posts fixed in a state perpendicular to the rear side face of the rear guide plate. The pair of rear long guide posts and the pair of rear short guide posts are arranged in an alternating position relationship with each other, and a rear long guide post roller is rotatably arranged at the end of each of the pair of rear long guide posts, and a rear short guide post roller is rotatably arranged at the end of each of the pair of rear short guide posts; the front long guide post roller forms a rolling pair with the upper and lower beam guide grooves of the front frame body, and the rear long guide post roller forms a rolling pair with the upper and lower beam guide grooves of the rear frame body.

[0016] In yet another specific embodiment of the present invention, the front guide plate and the rear guide plate are in a rhombus shape.

[0017] The technical effect of the technical solution provided by the present invention lies in that: due to the adoption of the front left and right holding plates and the rear left and right holding plates of the turnover basket posture at the same horizontal height, when the turnover basket is driven by the front and rear traction chains, during the process that the turnover basket moving guide mechanism carries the turnover basket to move around the front and rear frames of the rack in a cycle, whether the turnover basket descends between the front and rear left holding plates of the turnover basket posture and moves at the lower layer position or rises between the front and rear right holding plates of the turnover basket posture and moves at the upper layer position, it can ensure that the upper opening of the turnover basket always faces upward. Therefore, it helps to reflect a good upper and lower layer structure, significantly reduces the space occupation, and reflects excellent integration, significantly shortens the running path and improves the running efficiency; since the opening of the turnover basket always faces upward, it is beneficial to reflect the so-called double-layer effect, and it is convenient for the workers at the work station to take or place objects from the turnover basket at the upper or lower layer; since it is significantly shorter in length compared with the single-layer rhythm production flow trough, and the work station configuration is reasonable, there is no need to rearrange the work station due to product changes, meeting the process requirements in the case of small batch and multi-variety. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural diagram of an embodiment of the present invention; Figure 2 It is Figure 1 a schematic diagram observed from the rear side; Figure 3 It is Figure 1 and Figure 2 a schematic diagram showing the fixation of the front left holding plate of the turnover basket posture to the rear left end of the front frame of the rack as shown; Figure 4 It is Figure 1 and Figure 2 a detailed structural diagram of the rear left holding plate of the turnover basket posture as shown; Figure 5 It is Figure 1 and Figure 2 a detailed structural diagram of the turnover basket moving guide mechanism fixed to the bottom of the turnover basket as shown; Figure 6 It is Figure 1 an enlarged view of part A of DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] In order to more clearly understand the technical essence and beneficial effects of the present invention, the applicant will make a detailed description below in the form of embodiments. However, the description of the embodiments is not a limitation to the technical solution of the present invention. Any equivalent transformation that is only formal rather than substantial based on the concept of the present invention should be regarded as within the scope of the technical solution of the present invention.

[0020] In the following description, all concepts related to the directionality or orientation such as up, down, left, right, front and rear are based on the currentFigure 1 Based on the position state, it should not be understood as a special limitation on the technical solution provided by the present invention.

[0021] Please refer to Figure 1 and Figure 2 , which shows a rack 1 composed of a front frame 11 and a rear frame 12 that are arranged face to face with each other and are connected into a whole by a connecting cross beam 14 between the opposite sides in the length direction; a turnover basket traction chain drive mechanism 2 is shown, and the turnover basket traction chain drive mechanism 2 is arranged between the left ends of the front and rear frames 11 and 12; the turnover basket front traction chain 3 and the turnover basket rear traction chain 4 that correspond to each other front and back and are each in an endless loop shape, the turnover basket front traction chain 3 is arranged in a horizontal running state on the side of the front frame 11 facing the rear frame 12, the turnover basket rear traction chain 4 is arranged in a horizontal running state on the side of the rear frame 12 facing the front frame 11, and the turnover basket traction chain drive mechanism 2 is in transmission connection with the turnover basket front traction chain 3 and the turnover basket rear traction chain 4; a turnover basket 5 is shown, and the turnover basket 5 is arranged at intervals between the turnover basket front and rear traction chains 3 and 4.

[0022] Technical key points of the technical solution provided by the present invention: It further includes front left and right retaining plates 6 and 10 of the turnover basket attitude at the same height, rear left retaining plate 7 of the turnover basket attitude, and rear right retaining plate 20 of the turnover basket attitude. The front left retaining plate 6 of the turnover basket attitude is fixed on the left end of the aforementioned front frame body 11 facing the side of the aforementioned rear frame body 12, and the front right retaining plate 10 of the turnover basket attitude is fixed on the right end of the aforementioned front frame body 11 facing the side of the aforementioned rear frame body 12. The rear left retaining plate 7 of the turnover basket attitude is fixed on the left end of the rear frame body 12 facing the side of the front frame body 11 in a state corresponding to the front left retaining plate 6 of the turnover basket attitude, and the rear right retaining plate 20 of the turnover basket attitude is fixed on the right end of the rear frame body 12 facing the side of the front frame body 11 in a state corresponding to the front right retaining plate 10 of the turnover basket attitude; a turnover basket linear movement guiding mechanism 8 is provided at the bottom of the aforementioned turnover basket 5. The turnover basket linear movement guiding mechanism 8 is connected between the aforementioned front and rear traction chains 3 and 4 of the turnover basket in a state of forming a rolling pair with the aforementioned front and rear frame bodies 11 and 12. And under the traction of the aforementioned front and rear traction chains 3 and 4 of the turnover basket, when the turnover basket linear movement guiding mechanism 8 carries the turnover basket 5 and moves from right to left in a state of forming a rolling pair with the upper sides of the aforementioned front and rear frame bodies 11 and 12 to a position corresponding to the upper parts between the front and rear left retaining plates 6 and 7 of the turnover basket attitude, the turnover basket linear movement guiding mechanism 8 turns left and moves downward in a state of forming a rolling pair with the facing sides of the front and rear left retaining plates 6 and 7 of the turnover basket attitude, and when moving to a position between the bottoms of the front and rear left retaining plates 6 and 7 of the turnover basket attitude, it turns right and moves from left to right in a state of forming a rolling pair with the lower sides of the front and rear frame bodies 11 and 12 to a position corresponding to the lower parts, that is, the bottoms, between the front and rear right retaining plates 10 and 20 of the turnover basket attitude, the turnover basket linear movement guiding mechanism 8 turns right and moves upward, and when moving to a position between the tops of the front and rear right retaining plates 10 and 20 of the turnover basket attitude, it turns left and moves from right to left again along the upper parts of the front and rear frame bodies 11 and 12.

[0023] It can be seen from the above description that the aforementioned turnover basket linear movement guiding mechanism 8 carries the turnover basket 5 and moves in a cyclic manner according to the aforementioned operation mode or operation trajectory and in a double-layer manner manifested as upper and lower layers. In addition, according to professional common sense, and according to Figure 1 and Figure 2 It can be seen from the schematic diagram that the front left and right retaining plates 6 and 10 of the turnover basket attitude are symmetrically arranged with each other in a symmetrical effect like a pair of shoes, and the same is true for the mutual arrangement of the rear left and right retaining plates 7 and 20 of the turnover basket attitude.

[0024] Continue to see Figure 1 and Figure 2 And in combination with Figure 6, the foregoing front frame 11 has a front frame upper beam 111 and a front frame lower beam 112. A front frame upper beam guide bar 1111 is fixed at the rear side in the length direction of the front frame upper beam 111 and at a position between the upper parts of the front left and right holding plates 6 and 10 in the attitude of the turnover basket. A front frame lower beam guide bar 1121 is fixed at the rear side in the length direction of the front frame lower beam 112 and at a position between the lower parts of the front left and right holding plates 6 and 10 in the attitude of the turnover basket ( Figure 6 shown); the foregoing rear frame 12 has a rear frame upper beam 121 and a rear frame lower beam 122. A rear frame upper beam guide bar 1211 is fixed at the front side in the length direction of the rear frame upper beam 121 and at a position between the upper parts of the rear left and right holding plates 7 and 20 in the attitude of the turnover basket. A rear frame lower beam guide bar 1221 is fixed at the front side in the length direction of the rear frame lower beam 122 and at a position between the lower parts of the rear left and right holding plates 7 and 20 in the attitude of the turnover basket; the left end of the foregoing front frame upper beam guide bar 1111 is connected to the upper end of the foregoing front left holding plate 6 in the attitude of the turnover basket, and the right end of the front frame upper beam guide bar 1111 is connected to the upper end of the foregoing front right holding plate 10 in the attitude of the turnover basket. The left end of the foregoing front frame lower beam guide bar 1121 is connected to the lower end of the front left holding plate 6 in the attitude of the turnover basket, and the right end of the front frame lower beam guide bar 1121 is connected to the lower end of the front right holding plate 10 in the attitude of the turnover basket; the left end of the foregoing rear frame upper beam guide bar 1211 is connected to the upper end of the foregoing rear left holding plate 7 in the attitude of the turnover basket, and the right end of the rear frame upper beam guide bar 1211 is connected to the upper end of the foregoing rear right holding plate 20 in the attitude of the turnover basket. The left end of the foregoing rear frame lower beam guide bar 1221 is connected to the lower end of the rear left holding plate 7 in the attitude of the turnover basket, and the right end of the rear frame lower beam guide bar 1221 is connected to the lower end of the foregoing rear right holding plate 20 in the attitude of the turnover basket; the foregoing turnover basket linear movement guiding mechanism 8 forms a rolling pair with the foregoing turnover basket 5, the front frame upper beam guide bar 1111, the rear frame upper beam guide bar 1211, the front frame lower beam guide bar 1121, and the rear frame lower beam guide bar 1221.

[0025] Please refer to Figure 3 and in combination with Figure 1 and Figure 2, the left end of the front traction chain 3 of the turnover basket is sleeved on the upper and lower corresponding upper left sprocket 31 of the front traction chain of the turnover basket and the lower left sprocket 32 of the front traction chain of the turnover basket. The upper left sprocket 31 of the front traction chain of the turnover basket is arranged at the rear end of the upper left sprocket shaft 311 of the front traction chain of the turnover basket. The middle part of the upper left sprocket shaft 311 of the front traction chain of the turnover basket is rotatably arranged on the upper left sprocket shaft support bearing seat 312 through the upper left sprocket shaft bearing 3111 of the front traction chain of the turnover basket. The front end of the upper left sprocket shaft 311 of the front traction chain of the turnover basket extends forward. The upper left sprocket shaft support bearing seat 312 is arranged on the upper left part of the front frame 11 in a left-right adjustable manner. The lower left sprocket 32 of the front traction chain of the turnover basket is arranged at the rear end of the lower left sprocket shaft 321 of the front traction chain of the turnover basket. The middle part of the lower left sprocket shaft 321 of the front traction chain of the turnover basket is rotatably arranged on the lower left sprocket shaft support bearing seat 322 through the lower left sprocket shaft bearing 3211 of the front traction chain of the turnover basket. The front end of the lower left sprocket shaft 321 of the front traction chain of the turnover basket extends forward. The lower left sprocket shaft support bearing seat 322 is arranged on the lower left part of the front frame 11 in a left-right adjustable manner.

[0026] See key Figure 1 and Figure 2, the right end of the front traction chain 3 of the turnover basket is sleeved on the upper and lower corresponding upper right sprockets 33 of the front traction chain of the turnover basket and the lower right sprocket 34 of the front traction chain of the turnover basket. The upper right sprocket 33 of the front traction chain of the turnover basket is arranged at the rear end of the upper right sprocket shaft 331 of the front traction chain of the turnover basket. The middle of the upper right sprocket shaft 331 of the front traction chain of the turnover basket is rotatably arranged on the upper right sprocket shaft support bearing seat 332 through the upper right sprocket shaft bearing 3311 of the front traction chain of the turnover basket. The front end of the upper right sprocket shaft 331 of the front traction chain of the turnover basket extends forward. The upper right sprocket shaft support bearing seat 332 of the front traction chain of the turnover basket is arranged on the upper right part of the right end of the front frame 11 in a left-right adjustable manner. The lower right sprocket 34 of the front traction chain of the turnover basket is arranged at the rear end of the lower right sprocket shaft 341 of the front traction chain of the turnover basket. The middle of the lower right sprocket shaft 341 of the front traction chain of the turnover basket is rotatably arranged on the lower right sprocket shaft support bearing seat 342 through the lower right sprocket shaft bearing 3411 of the front traction chain of the turnover basket. The front end of the lower right sprocket shaft 341 of the front traction chain of the turnover basket extends forward. The lower right sprocket shaft support bearing seat 342 of the front traction chain of the turnover basket is arranged on the lower right part of the right end of the front frame 11 in a left-right adjustable manner. Among them, the rear ends of the upper left and lower sprocket shafts 311 and 321 of the front traction chain of the turnover basket extend to the rear side of the front left holding plate 6 of the turnover basket attitude. And the upper left and lower sprockets 31 and 32 of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper left and lower sprocket shafts 311 and 321 of the front traction chain of the turnover basket at positions behind the front left holding plate 6 of the turnover basket attitude. The rear ends of the upper right and lower sprocket shafts 331 and 341 of the front traction chain of the turnover basket extend to the rear side of the front right holding plate 10 of the turnover basket attitude. And the upper right and lower sprockets 33 and 34 of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper right and lower sprocket shafts 331 and 341 of the front traction chain of the turnover basket at positions behind the front right holding plate 10 of the turnover basket attitude.

[0027] Still see Figure 1 and Figure 2, the left end of the aforementioned turnover basket rear traction chain 4 is sleeved on the turnover basket rear traction chain upper left sprocket 41 and the turnover basket rear traction chain lower left sprocket 42 that are vertically corresponding to each other. The turnover basket rear traction chain upper left sprocket 41 is arranged at the front end of the turnover basket rear traction chain upper left sprocket shaft 411. The middle part of the turnover basket rear traction chain upper left sprocket shaft 411 is rotatably arranged on the turnover basket rear traction chain upper left sprocket shaft support bearing seat through the turnover basket rear traction chain upper left sprocket shaft bearing, and the rear end of the turnover basket rear traction chain upper left sprocket shaft 411 extends backward. The aforementioned turnover basket rear traction chain upper left sprocket shaft support bearing seat is arranged on the upper left part of the left end of the aforementioned rear frame body 12 in a left-right adjustable manner. The aforementioned turnover basket rear traction chain lower left sprocket 42 is arranged at the front end of the turnover basket rear traction chain lower left sprocket shaft 421. The middle part of the turnover basket rear traction chain lower left sprocket shaft 421 is rotatably arranged on the turnover basket rear traction chain lower left sprocket shaft support bearing seat through the turnover basket rear traction chain lower left sprocket shaft bearing, and the rear end of the turnover basket rear traction chain lower left sprocket shaft 421 extends backward. The aforementioned turnover basket rear traction chain lower left sprocket shaft support bearing seat is arranged on the lower left part of the left end of the rear frame body 12 in a left-right adjustable manner.

[0028] The right end of the aforementioned rear traction chain 4 of the turnover basket is sleeved on the upper and lower corresponding upper right sprockets 43 and lower right sprockets 44 of the rear traction chain of the turnover basket. The upper right sprocket 43 of the rear traction chain of the turnover basket is arranged at the front end of the upper right sprocket shaft 431 of the rear traction chain of the turnover basket. The middle part of the upper right sprocket shaft 431 of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the upper right sprocket shaft support of the rear traction chain of the turnover basket through the bearing of the upper right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the upper right sprocket shaft 431 of the rear traction chain of the turnover basket extends backward. The aforementioned bearing seat of the upper right sprocket shaft support of the rear traction chain of the turnover basket is arranged on the upper right part of the rear frame body 12 in a left-right adjustable manner. The lower right sprocket 44 of the rear traction chain of the turnover basket is arranged at the front end of the lower right sprocket shaft 441 of the rear traction chain of the turnover basket. The middle part of the lower right sprocket shaft 441 of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the lower right sprocket shaft support of the rear traction chain of the turnover basket through the bearing of the lower right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the lower right sprocket shaft of the rear traction chain of the turnover basket extends backward. The aforementioned bearing seat of the lower right sprocket shaft support of the rear traction chain of the turnover basket is arranged on the lower right part of the right frame body 12 in a left-right adjustable manner. Among them, the rear ends of the upper left and lower sprocket shafts 411 and 421 of the rear traction chain of the turnover basket extend to the rear side of the left retaining plate 7 after the turnover basket posture, and the upper left and lower sprockets 41 and 42 of the rear traction chain of the turnover basket are respectively fixed to the front ends of the upper left and lower sprocket shafts 411 and 421 of the rear traction chain of the turnover basket at positions in front of the left retaining plate 7 after the turnover basket posture. The rear ends of the upper right and lower sprocket shafts 431 and 441 of the rear traction chain of the turnover basket extend to the rear side of the right retaining plate 20 after the turnover basket posture, and the upper right and lower sprockets 43 and 44 of the rear traction chain of the turnover basket are respectively fixed to the front ends of the upper right and lower sprocket shafts 431 and 441 of the rear traction chain of the turnover basket at positions in front of the right retaining plate 20 after the turnover basket posture; the aforementioned turnover basket traction chain driving mechanism 2 is in transmission connection with the lower left sprocket shaft 321 of the front traction chain of the turnover basket and the lower left sprocket shaft 421 of the rear traction chain of the turnover basket.

[0029] When the applicant mentioned the concept of left-right adjustment of the bearing seats 312 and 322 of the upper left and lower sprocket shafts of the front traction chain of the turnover basket and the bearing seats 332 and 342 of the upper right and lower sprocket shafts of the front traction chain of the turnover basket above, it means adjusting through the adjusting screw to make the front traction chain 3 of the turnover basket in a good tension state. In order to fully understand the present invention, in Figure 3 is shown the left-right adjustment screw 3121 of the bearing seat of the upper left sprocket shaft of the front traction chain of the turnover basket for adjusting the bearing seat 312 of the upper left sprocket shaft of the front traction chain of the turnover basket. Since the concept of left-right adjustment mentioned for the remaining components and also mentioned below is the same example, it will not be elaborated one by one.

[0030] In this embodiment, the upper and lower left sprockets 31 and 32 of the front traction chain of the turnover basket, the upper and lower right sprockets 33 and 34 of the front traction chain of the turnover basket, the upper and lower left sprockets 41 and 42 of the rear traction chain of the turnover basket, the upper right sprocket 43 of the rear traction chain of the turnover basket, and the lower right sprocket 44 of the rear traction chain of the turnover basket are double-row sprockets, and the front traction chain 3 and the rear traction chain 4 of the turnover basket are double-row chains.

[0031] Continue to see Figure 1 and Figure 2 , at the left end of the aforementioned frame 1 and at a position extending between the left side of the aforementioned front frame body 11 and the lower left side of the rear frame body 12, there is a support frame 13 for the turnover basket traction chain drive mechanism; the aforementioned turnover basket traction chain drive mechanism 2 includes a motor 21, a reduction gearbox 22, a reduction gearbox output shaft 23, a front drive chain 24, a drive wheel 25 for the lower left sprocket shaft of the front traction chain of the turnover basket, a rear drive chain 26, and a drive wheel 27 for the lower left sprocket shaft of the rear traction chain of the turnover basket. The motor 21 is in transmission cooperation with the reduction gearbox 22 with its motor shaft facing downward, and the reduction gearbox 22 together with the motor 21 is fixed to the reduction gearbox fixing beam 221 by bolts, and the reduction gearbox fixing beam 221 is fixed to the aforementioned support frame 13 for the turnover basket traction chain drive mechanism. The front end of the reduction gearbox output shaft 23 is rotatably supported on the front support bearing seat 231 of the reduction gearbox output shaft, and the front support bearing seat 231 of the reduction gearbox output shaft is arranged on the front side of the aforementioned support frame 13 for the turnover basket traction chain drive mechanism with left and right adjustment. The rear support bearing seat 232 of the reduction gearbox output shaft is arranged on the rear side of the aforementioned support frame 13 for the turnover basket traction chain drive mechanism with left and right adjustment. And a front sprocket 233 of the reduction gearbox output shaft is fixed to the front end of the reduction gearbox output shaft 23, and a rear sprocket 234 of the reduction gearbox output shaft is fixed to the rear end of the reduction gearbox output shaft 23. One end of the front drive chain 24 is sleeved on the front sprocket 233 of the reduction gearbox output shaft, and the other end is sleeved on the drive wheel 25 for the lower left sprocket shaft of the front traction chain of the turnover basket. The drive wheel 25 for the lower left sprocket shaft of the front traction chain of the turnover basket is fixed to the front end of the aforementioned lower left sprocket shaft 321 of the front traction chain of the turnover basket. One end of the rear drive chain 26 is sleeved on the rear sprocket 234 of the reduction gearbox output shaft, and the other end is sleeved on the drive wheel 27 for the lower left sprocket shaft of the rear traction chain of the turnover basket. The drive wheel 27 for the lower left sprocket shaft of the rear traction chain of the turnover basket is fixed to the rear end of the aforementioned lower left sprocket shaft 421 of the rear traction chain of the turnover basket.

[0032] When the motor 21 operates, it drives the speed reducer 22, the speed reducer 22 drives the output shaft 23 of the speed reducer, and the output shaft 23 of the speed reducer drives the left lower sprocket shafts of the front and rear traction chains of the turnover basket 25 and 27 simultaneously and synchronously through the front and rear sprockets 233 and 234 of the output shaft of the speed reducer. Thus, the left lower sprocket shafts of the front and rear traction chains of the turnover basket 25 and 27 respectively drive the left lower sprocket shafts 321 and 421 of the front and rear traction chains of the turnover basket at the same time. The left lower sprocket shafts 321 and 421 of the front and rear traction chains of the turnover basket drive the left lower sprockets 32 and 42 of the front and rear traction chains of the turnover basket, thereby causing the front and rear traction chains 3 and 4 of the turnover basket to move. Subsequently, the front and rear traction chains 3 and 4 of the turnover basket drive the turnover basket traveling guide mechanism 8, which will be described in detail below, to carry the turnover basket 5 and move it.

[0033] Continue to see Figure 1 and Figure 2 And in combination with Figure 3 , a left front reinforcing frame 113 of the front frame body is additionally provided on the front left side of the left end of the aforementioned front frame body 11, and a left rear reinforcing frame 123 of the rear frame body is additionally provided on the rear left side of the left end of the aforementioned rear frame body 12. The left front and rear reinforcing frames 113 and 123 of the front and rear frame bodies are connected by a left reinforcing frame connecting beam 124 ( Figure 3 shown). A front support bearing seat 1131 of the upper left sprocket shaft of the front traction chain of the turnover basket is provided on the left front reinforcing frame 113 and can be adjusted horizontally at a position corresponding to the front of the support bearing seat 312 of the upper left sprocket shaft of the front traction chain of the turnover basket ( Figure 3 shown). A front support bearing seat 1132 of the lower left sprocket shaft of the front traction chain of the turnover basket is provided at a position corresponding to the front of the support bearing seat 322 of the lower left sprocket shaft of the front traction chain of the turnover basket and can be adjusted horizontally ( Figure 3 shown). The front end of the upper left sprocket shaft 311 of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat 1131 of the upper left sprocket shaft of the front traction chain of the turnover basket, and the front end of the lower left sprocket shaft 321 of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat 1132 of the lower left sprocket shaft of the front traction chain of the turnover basket; a rear support bearing seat 1231 of the upper left sprocket shaft of the rear traction chain of the turnover basket is provided on the left rear reinforcing frame 123 and can be adjusted horizontally at a position corresponding to the rear of the support bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket ( Figure 2 shown), and a rear support bearing seat 1232 of the lower left sprocket shaft of the rear traction chain of the turnover basket is provided at a position corresponding to the rear of the support bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket and can be adjusted horizontally ( Figure 2As shown, the rear end of the upper left sprocket shaft 411 of the turnover basket's rear traction chain is rotatably supported on the rear support bearing seat 1231 of the upper left sprocket shaft of the turnover basket's rear traction chain, and the rear end of the lower left sprocket shaft 421 of the turnover basket's rear traction chain is rotatably supported on the rear support bearing seat 1232 of the lower left sprocket shaft of the turnover basket's rear traction chain.

[0034] For key points, see Figure 1 and Figure 2 A right front reinforcement frame 115 of the front frame body is additionally provided on the front right side of the right end of the foregoing front frame body 11, and a right rear reinforcement frame 125 of the rear frame body is additionally provided on the rear right side of the right end of the foregoing rear frame body 12. The opposite sides of the right front and rear reinforcement frames 115 and 125 of the front and rear frame bodies are connected by a right reinforcement frame connecting beam 126 ( Figure 2 As shown). A front support bearing seat 1151 of the upper right sprocket shaft of the turnover basket's front traction chain is provided on the right front reinforcement frame 115 of the front frame body and can be adjusted left and right at a position corresponding to the front of the foregoing support bearing seat 332 of the upper right sprocket shaft of the turnover basket's front traction chain. A front support bearing seat 1152 of the lower right sprocket shaft of the turnover basket's front traction chain is provided at a position corresponding to the front of the foregoing support bearing seat 342 of the lower right sprocket shaft of the turnover basket's front traction chain and can be adjusted left and right. The front end of the upper right sprocket shaft 331 of the turnover basket's front traction chain is rotatably supported on the front support bearing seat 1151 of the upper right sprocket shaft of the turnover basket's front traction chain, and the front end of the lower right sprocket shaft 341 of the turnover basket's front traction chain is rotatably supported on the front support bearing seat 1152 of the lower right sprocket shaft of the turnover basket's front traction chain; A rear support bearing seat 1251 of the upper right sprocket shaft of the turnover basket's rear traction chain is provided on the right rear reinforcement frame 125 of the rear frame body and can be adjusted left and right at a position corresponding to the rear of the foregoing support bearing seat of the upper right sprocket shaft of the turnover basket's rear traction chain. A rear support bearing seat 1252 of the lower right sprocket shaft of the turnover basket's rear traction chain is provided at a position corresponding to the rear side of the foregoing support bearing seat of the lower right sprocket shaft of the turnover basket's rear traction chain and can be adjusted left and right. The rear end of the upper right sprocket shaft 431 of the turnover basket's rear traction chain is rotatably supported on the rear support bearing seat 1251 of the upper right sprocket shaft of the turnover basket's rear traction chain, and the rear end of the lower right sprocket shaft 441 of the turnover basket's rear traction chain is rotatably supported on the rear support bearing seat 1252 of the lower right sprocket shaft of the turnover basket's rear traction chain.

[0035] The structures and fixing methods of the front left and right retaining plates 6 and 10, the rear left retaining plate 7, and the rear right retaining plate 20 of the turnover basket attitude are the same. Moreover, the extending methods and degrees of the rear ends of the upper and lower sprocket shafts 311 and 321 of the front traction chain of the turnover basket extending to the rear side of the front left retaining plate 6 of the turnover basket attitude, the extending methods and degrees of the rear ends of the upper and lower sprocket shafts 331 and 341 of the front right traction chain of the turnover basket extending to the rear side of the front right retaining plate 10 of the turnover basket attitude, and the extending methods and degrees of the front ends of the upper and lower sprocket shafts 411 and 421 of the rear traction chain of the turnover basket extending to the front side of the rear left retaining plate 7 of the turnover basket attitude are the same as those of the front ends of the upper and lower sprocket shafts 431 and 441 of the rear traction chain of the turnover basket extending to the front side of the rear right retaining plate 20 of the turnover basket attitude.

[0036] As shown by Figure 3 the front left retaining plate 6 of the turnover basket attitude is fixed to the rear side of the left end of the front frame body 11 by a pair of upper fixing screws 61 and a pair of lower fixing screws 62 of the front left retaining plate of the turnover basket attitude at positions corresponding to the longitudinal adjustment screw holes 63 formed in the front left retaining plate 6 of the turnover basket attitude. Since the fixing methods of the front right retaining plate 10, the rear left and right retaining plates 7 and 20 of the turnover basket attitude are similar to that of the front left retaining plate 6 of the turnover basket attitude, they will not be described one by one.

[0037] Please refer to Figure 4 and in combination with Figure 1, at the top of the left rear retaining plate 7 in the aforementioned turnover basket posture, a short guide post roller upper guide surface 71 is formed, and at the bottom, a short guide post roller lower guide surface 72 is formed. In the height direction on the left side of the left rear retaining plate 7 in the turnover basket posture, a pair of long guide post roller guide grooves 73 and a short guide post roller guide groove 74 are formed. At the upper front side of the left rear retaining plate 7 in the turnover basket posture, a long guide post roller guiding upper horizontal groove 75a is formed, and at the lower front side of the left rear retaining plate 7 in the turnover basket posture, a long guide post roller guiding lower horizontal groove 75b is formed. At the upper end of the left rear retaining plate 7 in the turnover basket posture and at the position corresponding to the upper sprocket shaft of the rear traction chain of the turnover basket 411, an upper sprocket shaft relief opening 76a is provided, and at the lower end of the left rear retaining plate 7 in the turnover basket posture and at the position corresponding to the lower sprocket shaft of the rear traction chain of the turnover basket 421, a lower sprocket shaft relief opening 76b is provided. On the left rear retaining plate 7 in the turnover basket posture and at the position between the upper and lower sprocket shaft relief openings 76a and 76b, a pair of retaining plate upper adjustment fixing screw holes 77a and a pair of retaining plate lower adjustment fixing screw holes 77b are provided. The aforementioned short guide post roller upper and lower guide surfaces 71 and 72 respectively correspond to the upper end and the lower end of the short guide post roller guide groove 74. The long guide post roller guiding upper horizontal groove 75a and the long guide post roller guiding lower horizontal groove 75b respectively communicate with the upper end and the lower end of a pair of long guide post roller guide grooves 73 through a ∧-shaped transition dividing area 75c and a ∨-shaped transition dividing area 75d. The front end of the upper sprocket shaft of the rear traction chain of the turnover basket 411 extends to the front of the left rear retaining plate 7 corresponding to the upper sprocket shaft relief opening 76a, and the upper sprocket 41 of the rear traction chain of the turnover basket is fixed to the front end of the upper sprocket shaft of the rear traction chain of the turnover basket 411 at the position corresponding to the front of the left rear retaining plate 7 in the turnover basket posture. The front end of the lower sprocket shaft of the rear traction chain of the turnover basket 421 extends to the front of the left rear retaining plate 7 corresponding to the lower sprocket shaft relief opening 76b, and the lower sprocket 42 of the rear traction chain of the turnover basket is fixed to the front end of the lower sprocket shaft of the rear traction chain of the turnover basket 421 at the position corresponding to the front of the left rear retaining plate 7 in the turnover basket posture. At the positions corresponding to the aforementioned pair of retaining plate upper adjustment fixing screw holes 77a and a pair of retaining plate lower adjustment fixing screw holes 77b, retaining plate fixing screws (not shown in the figure) are respectively provided, and the retaining plate fixing screws fix the left rear retaining plate 7 in the turnover basket posture to the front side of the left end of the aforementioned rear frame body 12; the right sides of the aforementioned upper and lower sprocket shaft relief openings 76a and 76b communicate with the outside.

[0038] Continue to see Figure 1 and Figure 2 And in combination with Figure 4, a rear frame upper beam guide slot 12111 is formed on the front side in the length direction of the foregoing rear frame upper beam guide bar 1211, and a rear frame lower beam guide slot 12211 is formed on the rear side in the length direction of the foregoing rear frame lower beam guide bar 1221. The rear frame upper beam guide slot 12111 corresponds to and communicates with the foregoing long guide column roller guiding upper horizontal slot 75a, and the rear frame lower beam guide slot 12211 corresponds to and communicates with the foregoing long guide column roller guiding lower horizontal slot 75b; a front frame upper beam guide slot 11111 is formed on the front side in the length direction of the foregoing front frame upper beam guide bar 1111, and a front frame lower beam guide slot 11211 is formed on the rear side in the length direction of the front frame lower beam guide bar 1121; the foregoing turnover basket traveling guiding mechanism 8 carries all the turnover baskets 5 and forms rolling pairs with the foregoing front frame upper and lower beam guide slots 11111, 11211, rear frame upper and lower beam guide slots 12111, 12211, short guide column roller upper guiding surface 71, long guide column roller guiding upper horizontal slot 75a, a pair of long guide column roller guide slots 73, short guide column roller guide slots 74, short guide column roller lower guiding surface 72 and long guide column roller guiding lower horizontal slot 75b.

[0039] Please refer to Figure 5 and Figure 6 and in combination with Figure 1 and Figure 2, the aforementioned turnover basket moving guide mechanism 8 includes a turnover basket bottom connecting frame 81, a connecting frame middle beam 82, a front traction chain connecting plate 83, a rear traction chain connecting plate 84, a front guide plate 85, and a rear guide plate 86. The turnover basket bottom connecting frame 81 is fixed to the downward side of the bottom of the aforementioned turnover basket 5 at a position corresponding to the screw hole 813 on the turnover basket bottom connecting frame 81 through the turnover basket bottom connecting frame fixing screw 812. The middle part of the connecting frame middle beam 82 is located in the middle of the turnover basket bottom connecting frame cavity 811 of the turnover basket bottom connecting frame 81. The front end of the connecting frame middle beam 82 extends to the front side of the turnover basket bottom connecting frame 81 and forms a connecting frame middle beam front extension shaft seat 821, while the rear end of the connecting frame middle beam 82 extends to the rear side of the turnover basket bottom connecting frame 81 and forms a connecting frame middle beam rear extension shaft seat 822. A front shaft head 8211 extends on the front end face of the connecting frame middle beam front extension shaft seat 821, and a rear shaft head 8221 extends on the connecting frame middle beam rear extension shaft seat 822. The upper end of the front traction chain connecting plate 83 is hinged to the front shaft head 8211, and the aforementioned turnover basket front traction chain 3 is fixedly connected to the lower end of the front traction chain connecting plate 83. The upper end of the rear traction chain connecting plate 84 is hinged to the rear shaft head 8221, and the aforementioned turnover basket rear traction chain 4 is fixedly connected to the lower end of the rear traction chain connecting plate 84. The front guide plate 85 is located on the front side of the front traction chain connecting plate 83. The central position of the front guide plate 85 is sleeved on the front shaft head 8211 and is fixedly welded to the front shaft head 8211. On the front side of the front guide plate 85, there are a pair of front long guide columns 851 and a pair of front short guide columns 852 in a state perpendicular to the front side of the front guide plate 85. The pair of front long guide columns 851 and the pair of front short guide columns 852 are arranged in an alternating position relationship with each other, and a front long guide column roller 8511 is rotatably provided at the end of each of the pair of front long guide columns 851, while a pair of front short guide column rollers 8521 are rotatably provided at the end of each of the pair of front short guide columns 852. The rear guide plate 86 is located on the rear side of the rear traction chain connecting plate 84. The central position of the rear guide plate 86 is sleeved on the rear shaft head 8221 and is fixedly welded to the rear shaft head 8221. On the rear side of the rear guide plate 86, a pair of rear long guide columns 861 and a pair of rear short guide columns 862 are fixed in a state perpendicular to the rear side of the rear guide plate 86. The pair of rear long guide columns 861 and the pair of rear short guide columns 862 are arranged in an alternating position relationship with each other, and a rear long guide column roller 8611 is rotatably provided at the end of each of the pair of rear long guide columns 861, while a pair of rear short guide column rollers 8621 are rotatably provided at the end of each of the pair of rear short guide columns 862; the aforementioned front long guide column roller 8511 and the upper and lower beam guide slots 11111, 11211 of the aforementioned front frame form a rolling pair, and the aforementioned rear long guide column roller 8611 and the upper and lower beam guide slots 12111, 12211 of the aforementioned rear frame form a rolling pair.

[0040] consisting of Figure 5 and Figure 6As shown, the shapes of the aforementioned front guide plate 85 and rear guide plate 86 are rhombus-shaped.

[0041] As mentioned above by the applicant, under the operation of the turnover basket traction chain drive mechanism 2, the front and rear traction chains 3 and 4 of the turnover basket move. That is to say, the front traction chain 3 of the turnover basket moves cyclically around the upper and lower sprockets 31 and 32 of the upper left of the front traction chain of the turnover basket located at the rear left end of the front frame body 11 and the upper and lower sprockets 33 and 34 of the upper right of the front traction chain of the turnover basket located at the rear right end of the front frame body 11. At the same time, the rear traction chain 4 of the turnover basket moves cyclically around the upper and lower sprockets 41 and 42 of the upper left of the rear traction chain of the turnover basket located at the front left end of the right frame body 12 and the upper and lower sprockets 43 and 44 of the upper right of the rear traction chain of the turnover basket located at the front right end of the rear frame body 12. Since the front and rear traction chains 3 and 4 of the turnover basket are respectively connected to the front and rear traction chain connecting plates 83 and 84 of the structural system of the turnover basket row movement guiding mechanism 8, during the cyclic movement of the front and rear traction chains 3 and 4 of the turnover basket, the corresponding turnover basket row movement guiding mechanisms 8 (one turnover basket 5 is equipped with one turnover basket row movement guiding mechanism 8) with the same number as the turnover basket 5 are driven to move accordingly. During the movement, the aforementioned front long guide column roller 8511 and the front frame upper beam guide slot 11111 and the front frame lower beam guide slot 11211 form a rolling pair, and the aforementioned long guide column roller 8611 and the aforementioned rear frame upper beam guide slot 12111 and the rear frame lower beam guide slot 12211 form a rolling pair. When the turnover basket row movement guiding mechanism 8 carrying the turnover basket 5 moves from right to left to the position between the upper parts of the aforementioned front and rear left holding plates 6 and 7 of the turnover basket attitude, the turnover basket row movement guiding mechanism 8 turns left, that is, changes direction and moves downward in a state of forming a rolling pair on the opposite side of the front and rear left holding plates 6 and 7 of the turnover basket attitude. When moving to the bottom of the front and rear left holding plates 6 and 7 of the turnover basket attitude, it turns right, that is, changes direction and at the same time moves from left to right to the position between the lower parts, that is, the bottoms, of the aforementioned front and rear right holding plates 10 and 20 of the turnover basket attitude in a state of forming a rolling pair with the aforementioned front frame upper beam guide slot 11111, the front frame lower beam guide slot 11211, the rear frame upper beam guide slot 12111, and the rear frame lower beam guide slot 12211. The turnover basket row movement guiding mechanism 8 turns right, that is, changes direction and moves upward, and when moving to the position between the tops of the front and rear right holding plates 10 and 20 of the turnover basket attitude, it turns left again, that is, changes direction and moves again in the direction of the front and rear left holding plates 6 and 7 of the turnover basket attitude. By repeating the above process, the turnover basket 5 moves cyclically in the upper and lower layer state shown by Figure 1 and Figure 2 As shown. During the aforementioned cyclic movement, the open part of the turnover basket 5 always faces upward.

[0042] To facilitate a clearer understanding of the present invention, the applicant combinesFigure 5 The following description is provided: The rear short guide post roller 8621 enters the short guide post roller guide groove 74 in a state of forming a rolling pair with the upper guide surface 71 of the short guide post roller, and then moves out of the turnover box posture to the left and remains on the left retaining plate 7 in a state of forming a rolling pair with the lower guide surface 72 of the short guide post roller. At the same time, the rear long guide post roller 8611 rolls along the upper horizontal groove 75a of the long guide post roller guide, enters a pair of long guide post roller guide grooves 73 through the ∧-shaped transition diversion area 75c, and then moves out of the turnover box posture to the left and remains on the left retaining plate 7 through the ∨-shaped transition diversion area 75d and the lower horizontal groove 75b of the long guide post roller guide. Since the forms of the left retaining plate 6 before entering and exiting the turnover box posture, the front and rear right retaining plates 10 and 20 of the turnover box posture are the same as those described above, the applicant will not repeat them here.

[0043] In summary, the technical solution provided by the present invention makes up for the deficiencies in the prior art, successfully completes the invention task, and faithfully realizes the technical effects described by the applicant in the technical effect column above.

Claims

1. A circulating transmission device with a function of maintaining the attitude of turnover baskets, comprising a frame (1), the frame (1) is composed of a front frame body (11) and a rear frame body (12) which are arranged face to face and are connected as a whole between the opposite sides in the length direction; a turnover basket traction chain drive mechanism (2), the turnover basket traction chain drive mechanism (2) is arranged between the left ends of the front and rear frame bodies (11, 12); a turnover basket front traction chain (3) and a turnover basket rear traction chain (4) which are arranged corresponding to each other front and rear and are each in an endless loop shape, the turnover basket front traction chain (3) is arranged on the side of the front frame body (11) facing the rear frame body (12), the turnover basket rear traction chain (4) is arranged on the side of the rear frame body (12) facing the front frame body (11), and the turnover basket traction chain drive mechanism (2) is in transmission connection with the turnover basket front traction chain (3) and the turnover basket rear traction chain (4); a turnover basket (5), the turnover basket (5) is arranged at intervals between the turnover basket front and rear traction chains (3, 4), and is characterized in that: It further includes a front left and right turnover basket attitude holding plates (6, 10) at the same height, a rear left turnover basket attitude holding plate (7), and a rear right turnover basket attitude holding plate (20). The front left turnover basket attitude holding plate (6) is fixed to the left end of the front frame body (11) on the side facing the rear frame body (12), and the front right turnover basket attitude holding plate (10) is fixed to the right end of the front frame body (11) on the side facing the rear frame body (12). The rear left turnover basket attitude holding plate (7) is fixed to the left end of the rear frame body (12) on the side facing the front frame body (11) in a state corresponding to the front left turnover basket attitude holding plate (6), and the rear right turnover basket attitude holding plate (20) is fixed to the right end of the rear frame body (12) on the side facing the front frame body (11) in a state corresponding to the front right turnover basket attitude holding plate (10). A turnover basket linear movement guiding mechanism (8) is provided at the bottom of the turnover basket (5). The turnover basket linear movement guiding mechanism (8) is connected between the front and rear traction chains (3, 4) of the turnover basket in a state of forming a rolling pair with the front and rear frame bodies (11, 12). And under the traction of the front and rear traction chains (3, 4) of the turnover basket, when the turnover basket linear movement guiding mechanism (8) carries the turnover basket (5) and moves from right to left in a state of forming a rolling pair with the upper side of the front and rear frame bodies (11, 12) to a position corresponding to the upper parts between the front and rear left turnover basket attitude holding plates (6, 7), the turnover basket linear movement guiding mechanism (8) turns left and moves downward in a state of forming a rolling pair with the facing side of the front and rear left turnover basket attitude holding plates (6, 7). And when it moves to a position between the bottoms of the front and rear left turnover basket attitude holding plates (6, 7), it turns right and moves from left to right in a state of forming a rolling pair with the lower side of the front and rear frame bodies (11, 12) to a position corresponding to the lower parts between the front and rear right turnover basket attitude holding plates (10, 20). At this time, the turnover basket linear movement guiding mechanism (8) turns right and moves upward, and when it moves to a position between the tops of the front and rear right turnover basket attitude holding plates (10, 20), it turns left and moves from right to left again along the upper parts of the front and rear frame bodies (11, 12).

2. The circulating transmission device with the function of maintaining the posture of the turnover basket according to claim 1, characterized in that: The front frame body (11) has a front frame upper beam (111) and a front frame lower beam (112). At the rear side in the length direction of the front frame upper beam (111) and at a position between the upper parts of the front left and right holding plates (6, 10) in the turnover basket posture, a front frame upper beam guide bar (1111) is fixed. And at the rear side in the length direction of the front frame lower beam (112) and at a position between the lower parts of the front left and right holding plates (6, 10) in the turnover basket posture, a front frame lower beam guide bar (1121) is fixed. The rear frame body (12) has a rear frame upper beam (121) and a rear frame lower beam (122). At the front side in the length direction of the rear frame upper beam (121) and at a position between the upper parts of the rear left and right holding plates (7, 20) in the turnover basket posture, a rear frame upper beam guide bar (1211) is fixed. And at the front side in the length direction of the rear frame lower beam (122) and at a position between the lower parts of the rear left and right holding plates (7, 20) in the turnover basket posture, a rear frame lower beam guide bar (1221) is fixed. The left end of the front frame upper beam guide bar (1111) is connected to the upper end of the front left holding plate (6) in the turnover basket posture, and the right end of the front frame upper beam guide bar (1111) is connected to the upper end of the front right holding plate (10) in the turnover basket posture. The left end of the front frame lower beam guide bar (1121) is connected to the lower end of the front left holding plate (6) in the turnover basket posture, and the right end of the front frame lower beam guide bar (1121) is connected to the lower end of the front right holding plate (10) in the turnover basket posture. The left end of the rear frame upper beam guide bar (1211) is connected to the upper end of the rear left holding plate (7) in the turnover basket posture, and the right end of the rear frame upper beam guide bar (1211) is connected to the upper end of the rear right holding plate (20) in the turnover basket posture. The left end of the rear frame lower beam guide bar (1221) is connected to the lower end of the rear left holding plate (7) in the turnover basket posture, and the right end of the rear frame lower beam guide bar (1221) is connected to the lower end of the rear right holding plate (20) in the turnover basket posture. The turnover basket linear movement guiding mechanism (8) carries the turnover basket (5) and forms rolling pairs with the front frame upper beam guide bar (1111), the rear frame upper beam guide bar (1211), the front frame lower beam guide bar (1121), and the rear frame lower beam guide bar (1221).

3. The circulating transmission device with the function of maintaining the posture of the turnover basket according to claim 2, wherein: The left end of the front traction chain (3) of the turnover basket is sleeved on the upper and lower corresponding upper left sprockets (31) and lower left sprockets (32) of the front traction chain of the turnover basket. The upper left sprocket (31) of the front traction chain of the turnover basket is arranged at the rear end of the upper left sprocket shaft (311) of the front traction chain of the turnover basket. The middle part of the upper left sprocket shaft (311) of the front traction chain of the turnover basket is rotatably arranged on the upper left sprocket shaft support bearing seat (312) through the upper left sprocket shaft bearing (3111) of the front traction chain of the turnover basket. The front end of the upper left sprocket shaft (311) of the front traction chain of the turnover basket extends forward. The upper left sprocket shaft support bearing seat (312) of the front traction chain of the turnover basket is arranged on the upper left part of the front frame body (11) in a left-right adjustable manner. The lower left sprocket (32) of the front traction chain of the turnover basket is arranged at the rear end of the lower left sprocket shaft (321) of the front traction chain of the turnover basket. The middle part of the lower left sprocket shaft (321) of the front traction chain of the turnover basket is rotatably arranged on the lower left sprocket shaft support bearing seat (322) through the lower left sprocket shaft bearing (3211) of the front traction chain of the turnover basket. The front end of the lower left sprocket shaft (321) of the front traction chain of the turnover basket extends forward. The lower left sprocket shaft support bearing seat (322) of the front traction chain of the turnover basket is arranged on the lower left part of the front frame body (11) in a left-right adjustable manner. The right end of the front traction chain (3) of the turnover basket is sleeved on the upper and lower corresponding upper right sprockets (33) and lower right sprockets (34) of the front traction chain of the turnover basket. The upper right sprocket (33) of the front traction chain of the turnover basket is arranged at the rear end of the upper right sprocket shaft (331) of the front traction chain of the turnover basket. The middle part of the upper right sprocket shaft (331) of the front traction chain of the turnover basket is rotatably arranged on the upper right sprocket shaft support bearing seat (332) through the upper right sprocket shaft bearing (3311) of the front traction chain of the turnover basket. The front end of the upper right sprocket shaft (331) of the front traction chain of the turnover basket extends forward. The upper right sprocket shaft support bearing seat (332) of the front traction chain of the turnover basket is arranged on the upper right part of the front frame body (11) in a left-right adjustable manner. The lower right sprocket (34) of the front traction chain of the turnover basket is arranged at the rear end of the lower right sprocket shaft (341) of the front traction chain of the turnover basket. The middle part of the lower right sprocket shaft (341) of the front traction chain of the turnover basket is rotatably arranged on the lower right sprocket shaft support bearing seat (342) through the lower right sprocket shaft bearing (3411) of the front traction chain of the turnover basket. The front end of the lower right sprocket shaft (341) of the front traction chain of the turnover basket extends forward. The lower right sprocket shaft support bearing seat (342) of the front traction chain of the turnover basket is arranged on the lower right part of the front frame body (11) in a left-right adjustable manner. Among them, the rear ends of the upper and lower left sprocket shafts (311, 321) of the front traction chain of the turnover basket extend to the rear side of the front left holding plate (6) of the turnover basket attitude,And the upper and lower left sprockets (31, 32) of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper and lower left sprocket shafts (311, 321) of the front traction chain of the turnover basket at positions behind the front left holding plate (6) of the turnover basket attitude. The rear ends of the upper and lower right sprocket shafts (331, 341) of the front traction chain of the turnover basket extend to the rear side of the front right holding plate (10) of the turnover basket attitude, and the upper and lower right sprockets (33, 34) of the front traction chain of the turnover basket are respectively fixed to the rear ends of the upper and lower right sprocket shafts (331, 341) of the front traction chain of the turnover basket at positions behind the front right holding plate (10) of the turnover basket attitude. The left end of the rear traction chain (4) of the turnover basket is sleeved on the upper and lower corresponding upper left sprocket (41) and lower left sprocket (42) of the rear traction chain of the turnover basket. The upper left sprocket (41) of the rear traction chain of the turnover basket is arranged at the front end of the upper left sprocket shaft (411) of the rear traction chain of the turnover basket. The middle part of the upper left sprocket shaft (411) of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket through the bearing of the upper left sprocket shaft of the rear traction chain of the turnover basket. The rear end of the upper left sprocket shaft (411) of the rear traction chain of the turnover basket extends backward. The bearing seat of the upper left sprocket shaft of the rear traction chain of the turnover basket is arranged on the upper left part of the left end of the rear frame body (12) with left and right adjustment. The lower left sprocket (42) of the rear traction chain of the turnover basket is arranged at the front end of the lower left sprocket shaft (421) of the rear traction chain of the turnover basket. The middle part of the lower left sprocket shaft (421) of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket through the bearing of the lower left sprocket shaft of the rear traction chain of the turnover basket. The rear end of the lower left sprocket shaft (421) of the rear traction chain of the turnover basket extends backward. The bearing seat of the lower left sprocket shaft of the rear traction chain of the turnover basket is arranged on the lower left part of the left end of the rear frame body (12) with left and right adjustment. The right end of the rear traction chain (4) of the turnover basket is sleeved on the upper and lower corresponding upper right sprocket (43) and lower right sprocket (44) of the rear traction chain of the turnover basket. The upper right sprocket (43) of the rear traction chain of the turnover basket is arranged at the front end of the upper right sprocket shaft (431) of the rear traction chain of the turnover basket. The middle part of the upper right sprocket shaft (431) of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket through the bearing of the upper right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the upper right sprocket shaft (431) of the rear traction chain of the turnover basket extends backward. The bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket is arranged on the upper right part of the right end of the rear frame body (12) with left and right adjustment. The lower right sprocket (44) of the rear traction chain of the turnover basket is arranged at the front end of the lower right sprocket shaft (441) of the rear traction chain of the turnover basket. The middle part of the lower right sprocket shaft (441) of the rear traction chain of the turnover basket is rotatably arranged on the bearing seat of the lower right sprocket shaft of the rear traction chain of the turnover basket through the bearing of the lower right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the lower right sprocket shaft of the rear traction chain of the turnover basket extends backward,The lower right sprocket shaft support bearing seat of the rear traction chain of the turnover basket is arranged at the lower right end of the right frame (12) in a left-right adjustable manner, wherein the rear ends of the upper left and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket extend to the rear side of the left rear retaining plate (7) of the turnover basket, and the upper left and lower sprockets (41, 42) of the rear traction chain of the turnover basket are respectively fixed to the front ends of the upper left and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket at a position in front of the left rear retaining plate (7) of the turnover basket, and the rear traction chain of the turnover basket is arranged in a right-right adjustable manner, wherein the rear ends of the upper left and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket are extended to the rear side of the left rear retaining plate (7) of the turnover basket, and the upper left and lower sprockets (41, 42) of the rear traction chain of the turnover basket are respectively fixed to the front ends of the upper left and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket at a position in front of the left rear retaining plate (7) of the turnover basket, and the rear traction chain of the turnover basket is arranged in a right-right adjustable manner, wherein the upper left and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket are extended to the rear side of the left rear retaining plate (7) of the turnover basket, and ... The rear ends of the upper right and lower sprocket shafts (431, 441) extend to the rear side of the right holding plate (20) behind the turnover basket, and the upper right and lower sprockets (43, 44) of the turnover basket rear traction chain are respectively fixed to the front ends of the upper right and lower sprocket shafts (431, 441) of the turnover basket rear traction chain at a position in front of the right holding plate (20) behind the turnover basket; the turnover basket traction chain driving mechanism (2) is drivingly connected to the lower left sprocket shaft (321) of the turnover basket front traction chain and the lower left sprocket shaft (421) of the turnover basket rear traction chain.

4. The circulating transmission device with the function of maintaining the attitude of the turnover basket according to claim 3, wherein: The upper and lower left sprockets (31, 32) of the front traction chain of the turnover basket, the upper and lower right sprockets (33, 34) of the front traction chain of the turnover basket, the upper and lower left sprockets (41, 42) of the rear traction chain of the turnover basket, the upper right sprocket (43) of the rear traction chain of the turnover basket, and the lower right sprocket (44) of the rear traction chain of the turnover basket are double-row sprockets. The front traction chain (3) of the turnover basket and the rear traction chain (4) of the turnover basket are double-row chains.

5. The circulation transmission device with the function of maintaining the posture of the turnover basket according to claim 3, characterized in that: At the left end of the frame (1) and at a position between the left side of the front housing (11) and the lower left side of the rear housing (12), a support frame (13) for the turnover basket traction chain drive mechanism extends; the turnover basket traction chain drive mechanism (2) includes a motor (21), a speed reducer (22), a speed reducer output shaft (23), a front drive chain (24), a drive wheel for the left lower sprocket shaft of the front traction chain of the turnover basket (25), a rear drive chain (26), and a drive wheel for the left lower sprocket shaft of the rear traction chain of the turnover basket (27). The motor (21) is in transmission cooperation with the speed reducer (22) with its motor shaft facing downward, and the speed reducer (22) together with the motor (21) is fixed to the speed reducer fixing beam (221), and this speed reducer fixing beam (221) is fixed to the support frame (13) of the turnover basket traction chain drive mechanism. The front end of the speed reducer output shaft (23) is rotatably supported on the front support bearing seat (231) of the speed reducer output shaft, and this front support bearing seat (231) of the speed reducer output shaft is arranged to be adjusted left and right on the front side of the support frame (13) of the turnover basket traction chain drive mechanism. The rear support bearing seat (232) of the speed reducer output shaft is arranged to be adjusted left and right on the rear side of the support frame (13) of the turnover basket traction chain drive mechanism. And a front sprocket (233) of the speed reducer output shaft is fixed at the front end of the speed reducer output shaft (23), and a rear sprocket (234) of the speed reducer output shaft is fixed at the rear end of the speed reducer output shaft (23). One end of the front drive chain (24) is sleeved on the front sprocket (233) of the speed reducer output shaft, and the other end is sleeved on the drive wheel for the left lower sprocket shaft of the front traction chain of the turnover basket (25), and this drive wheel for the left lower sprocket shaft of the front traction chain of the turnover basket (25) is fixed at the front end of the left lower sprocket shaft (321) of the front traction chain of the turnover basket. One end of the rear drive chain (26) is sleeved on the rear sprocket (234) of the speed reducer output shaft, and the other end is sleeved on the drive wheel for the left lower sprocket shaft of the rear traction chain of the turnover basket (27), and this drive wheel for the left lower sprocket shaft of the rear traction chain of the turnover basket (27) is fixed at the rear end of the left lower sprocket shaft (421) of the rear traction chain of the turnover basket.

6. The circulating transmission device with the function of maintaining the posture of the turnover basket according to claim 3, characterized in that: A front frame left strengthening frame (113) is additionally provided at the front left end of the front frame body (11), and a rear frame left strengthening frame (123) is additionally provided at the rear left end of the rear frame body (12). The opposite sides of the front and rear frame left strengthening frames (113, 123) are connected by a left strengthening frame connecting beam (124). A front support bearing seat (1131) of the upper left sprocket shaft of the turnover basket front traction chain is arranged on the front frame left strengthening frame (113) and can be adjusted left and right at a position corresponding to the front of the support bearing seat (312) of the upper left sprocket shaft of the turnover basket front traction chain. A front support bearing seat (1132) of the lower left sprocket shaft of the turnover basket front traction chain is arranged on the front frame left strengthening frame (113) and can be adjusted left and right at a position corresponding to the front of the support bearing seat (322) of the lower left sprocket shaft of the turnover basket front traction chain. The front end of the upper left sprocket shaft (311) of the turnover basket front traction chain is rotatably supported on the front support bearing seat (1131) of the upper left sprocket shaft of the turnover basket front traction chain. The front end of the lower left sprocket shaft (321) of the turnover basket front traction chain is rotatably supported on the front support bearing seat (1132) of the lower left sprocket shaft of the turnover basket front traction chain. A rear support bearing seat (1231) of the upper left sprocket shaft of the turnover basket rear traction chain is arranged on the rear frame left strengthening frame (123) and can be adjusted left and right at a position corresponding to the rear of the support bearing seat of the upper left sprocket shaft of the turnover basket rear traction chain. A rear support bearing seat (1232) of the lower left sprocket shaft of the turnover basket rear traction chain is arranged on the rear frame left strengthening frame (123) and can be adjusted left and right at a position corresponding to the rear side of the support bearing seat of the lower left sprocket shaft of the turnover basket rear traction chain. The rear end of the upper left sprocket shaft (411) of the turnover basket rear traction chain is rotatably supported on the rear support bearing seat (1231) of the upper left sprocket shaft of the turnover basket rear traction chain. The rear end of the lower left sprocket shaft (421) of the turnover basket rear traction chain is rotatably supported on the rear support bearing seat (1232) of the lower left sprocket shaft of the turnover basket rear traction chain;A front frame right strengthening frame (115) is additionally provided at the front right side of the right end of the front frame body (11), and a rear frame right strengthening frame (125) is additionally provided at the rear right side of the right end of the rear frame body (12). The opposite sides of the front and rear frame right strengthening frames (115, 125) are connected by a right strengthening frame connecting beam (126). A front support bearing seat (1151) of the upper right sprocket shaft of the front traction chain of the turnover basket is arranged on the front frame right strengthening frame (115) and can be adjusted left and right at a position corresponding to the front of the support bearing seat (332) of the upper right sprocket shaft of the front traction chain of the turnover basket. A front support bearing seat (1152) of the lower right sprocket shaft of the front traction chain of the turnover basket is arranged on the front frame right strengthening frame (115) and can be adjusted left and right at a position corresponding to the front of the support bearing seat (342) of the lower right sprocket shaft of the front traction chain of the turnover basket. The front end of the upper right sprocket shaft (331) of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat (1151) of the upper right sprocket shaft of the front traction chain of the turnover basket. The front end of the lower right sprocket shaft (341) of the front traction chain of the turnover basket is rotatably supported on the front support bearing seat (1152) of the lower right sprocket shaft of the front traction chain of the turnover basket. A rear support bearing seat (1251) of the upper right sprocket shaft of the rear traction chain of the turnover basket is arranged on the rear frame right strengthening frame (125) and can be adjusted left and right at a position corresponding to the rear of the support bearing seat of the upper right sprocket shaft of the rear traction chain of the turnover basket. A rear support bearing seat (1252) of the lower right sprocket shaft of the rear traction chain of the turnover basket is arranged on the rear frame right strengthening frame (125) and can be adjusted left and right at a position corresponding to the rear side of the support bearing seat of the lower right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the upper right sprocket shaft (431) of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat (1251) of the upper right sprocket shaft of the rear traction chain of the turnover basket. The rear end of the lower right sprocket shaft (441) of the rear traction chain of the turnover basket is rotatably supported on the rear support bearing seat (1252) of the lower right sprocket shaft of the rear traction chain of the turnover basket.; 7. The circulating transmission device with the function of maintaining the attitude of the turnover basket according to claim 3, characterized in that: The structures and fixing methods of the front left and right holding plates (6, 10), the rear left holding plate (7) and the rear right holding plate (20) of the turnover basket posture are the same, and the extending methods and degrees of the rear ends of the upper and lower sprocket shafts (311, 321) of the front traction chain of the turnover basket to the rear side of the front left holding plate (6) of the turnover basket posture, the extending methods and degrees of the rear ends of the upper and lower sprocket shafts (331, 341) of the front right traction chain of the turnover basket to the rear side of the front right holding plate (10) of the turnover basket posture, and the extending methods and degrees of the front ends of the upper and lower sprocket shafts (411, 421) of the rear traction chain of the turnover basket to the front side of the rear left holding plate (7) of the turnover basket posture are the same as the extending methods and degrees of the front ends of the upper and lower sprocket shafts (431, 441) of the rear traction chain of the turnover basket to the front side of the rear right holding plate (20) of the turnover basket posture.

8. The circulating transmission device with the function of maintaining the attitude of the turnover basket according to claim 7, characterized in that: At the top of the left rear retaining plate (7) of the turnover basket posture, there is a short guide post roller upper guide surface (71), and at the bottom, there is a short guide post roller lower guide surface (72). In the height direction on the left side of the left rear retaining plate (7) of the turnover basket posture, there are a pair of long guide post roller guide grooves (73) and a short guide post roller guide groove (74). At the upper front side of the left rear retaining plate (7) of the turnover basket posture, there is a long guide post roller guiding upper horizontal groove (75a), and at the lower front side of the left rear retaining plate (7) of the turnover basket posture, there is a long guide post roller guiding lower horizontal groove (75b). At the upper end of the left rear retaining plate (7) of the turnover basket posture and at the position corresponding to the upper left sprocket shaft (411) of the rear traction chain of the turnover basket, there is an upper sprocket shaft relief opening (76a), and at the lower end of the left rear retaining plate (7) of the turnover basket posture and at the position corresponding to the lower left sprocket shaft (421) of the rear traction chain of the turnover basket, there is a lower sprocket shaft relief opening (76b). On the left rear retaining plate (7) of the turnover basket posture and at the position between the upper and lower sprocket shaft relief openings (76a, 76b), there are a pair of upper retaining plate adjustment and fixing screw holes (77a) and a pair of lower retaining plate adjustment and fixing screw holes (77b). The short guide post roller upper and lower guide surfaces (71, 72) respectively correspond to the upper end and the lower end of the short guide post roller guide groove (74). The long guide post roller guiding upper horizontal groove (75a) and the long guide post roller guiding lower horizontal groove (75b) respectively communicate with the upper end and the lower end of a pair of long guide post roller guide grooves (73) through the ∧-shaped transition sub-channel area (75c) and the ∨-shaped transition sub-channel area (75d). The front end of the upper left sprocket shaft (411) of the rear traction chain of the turnover basket extends to the front of the left rear retaining plate (7) of the turnover basket posture corresponding to the upper sprocket shaft relief opening (76a), and the upper left sprocket (41) of the rear traction chain of the turnover basket is fixed to the front end of the upper left sprocket shaft (411) of the rear traction chain of the turnover basket at the position corresponding to the front of the left rear retaining plate (7) of the turnover basket posture. The front end of the lower left sprocket shaft (421) of the rear traction chain of the turnover basket extends to the front of the left rear retaining plate (7) of the turnover basket posture corresponding to the lower sprocket shaft relief opening (76b), and the lower left sprocket (42) of the rear traction chain of the turnover basket is fixed to the front end of the lower left sprocket shaft (421) of the rear traction chain of the turnover basket at the position corresponding to the front of the left rear retaining plate (7) of the turnover basket posture. At the positions corresponding to the pair of upper retaining plate adjustment and fixing screw holes (77a) and the pair of lower retaining plate adjustment and fixing screw holes (77b), there are respectively provided retaining plate fixing screws, and these retaining plate fixing screws fix the left rear retaining plate (7) of the turnover basket posture to the front left side of the rear frame body (12); the right sides of the upper and lower sprocket shaft relief openings (76a, 76b) communicate with the outside;On the front side in the length direction of the rear frame upper beam guide bar (1211), a rear frame upper beam guide bar groove (12111) is formed. On the rear side in the length direction of the rear frame lower beam guide bar (1221), a rear frame lower beam guide bar groove (12211) is formed. The rear frame upper beam guide bar groove (12111) corresponds to and communicates with the long guide column roller guiding upper horizontal groove (75a), and the rear frame lower beam guide bar groove (12211) corresponds to and communicates with the long guide column roller guiding lower horizontal groove (75b). On the front side in the length direction of the front frame upper beam guide bar (1111), a front frame upper beam guide bar groove (11111) is formed, and on the rear side in the length direction of the front frame lower beam guide bar (1121), a front frame lower beam guide bar groove (11211) is formed. The turnover basket moving guide mechanism (8) carries the turnover basket (5) to form rolling pairs with the front frame upper and lower beam guide bar grooves (11111, 11211), the rear frame upper and lower beam guide bar grooves (12111, 12211), the short guide column roller upper guiding surface (71), the long guide column roller guiding upper horizontal groove (75a), a pair of long guide column roller guide grooves (73), the short guide column roller guide groove (74), the short guide column roller lower guiding surface (72), and the long guide column roller guiding lower horizontal groove (75b).; 9. The circulating transmission device with the function of maintaining the attitude of the turnover basket according to claim 8, characterized in that: The turnover basket moving guide mechanism (8) described above includes a turnover basket bottom connecting frame (81), a connecting frame middle beam (82), a front traction chain connecting plate (83), a rear traction chain connecting plate (84), a front guide plate (85), and a rear guide plate (86). The turnover basket bottom connecting frame (81) is fixed to the downward side of the bottom of the turnover basket (5). The middle of the connecting frame middle beam (82) is located in the middle of the turnover basket bottom connecting frame cavity (811) of the turnover basket bottom connecting frame (81). The front end of the connecting frame middle beam (82) extends to the front side of the turnover basket bottom connecting frame (81) and forms a connecting frame middle beam front extension shaft seat (821), while the rear end of the connecting frame middle beam (82) extends to the rear side of the turnover basket bottom connecting frame (81) and forms a connecting frame middle beam rear extension shaft seat (822). A front shaft head (8211) extends on the front end face of the connecting frame middle beam front extension shaft seat (821), and a rear shaft head (8221) extends on the connecting frame middle beam rear extension shaft seat (822). The upper end of the front traction chain connecting plate (83) is hinged to the front shaft head (8211), and the turnover basket front traction chain (3) is fixedly connected to the lower end of the front traction chain connecting plate (83). The upper end of the rear traction chain connecting plate (84) is hinged to the rear shaft head (8221), and the turnover basket rear traction chain (4) is fixedly connected to the lower end of the rear traction chain connecting plate (84). The front guide plate (85) is located on the front side of the front traction chain connecting plate (83). The central position of the front guide plate (85) is sleeved on the front shaft head (8211) and is welded and fixed to the front shaft head (8211). On the front side of the front guide plate (85), there are a pair of front long guide columns (851) and a pair of front short guide columns (852) perpendicular to the front side of the front guide plate (85). The pair of front long guide columns (851) and the pair of front short guide columns (852) are arranged in an alternating position relationship with each other. At the ends of the pair of front long guide columns (851), a front long guide column roller (8511) is rotatably provided respectively, and at the ends of the pair of front short guide columns (852), a pair of front short guide column rollers (8521) are rotatably provided respectively. The rear guide plate (86) is located on the rear side of the rear traction chain connecting plate (84). The central position of the rear guide plate (86) is sleeved on the rear shaft head (8221) and is welded and fixed to the rear shaft head (8221). On the rear side of the rear guide plate (86), a pair of rear long guide columns (861) and a pair of rear short guide columns (862) are fixed perpendicular to the rear side of the rear guide plate (86). The pair of rear long guide columns (861) and the pair of rear short guide columns (862) are arranged in an alternating position relationship with each other. At the ends of the pair of rear long guide columns (861), a rear long guide column roller (8611) is rotatably provided respectively, and at the ends of the pair of rear short guide columns (862), a rear short guide column roller (8621) is rotatably provided respectively;The front long guide column roller (8511) and the front frame upper and lower beam guide slots (11111, 11211) form a rolling pair, and the rear long guide column roller (8611) and the rear frame upper and lower beam guide slots (12111, 12211) form a rolling pair. ; 10. The circulating transmission device with the function of maintaining the posture of the turnover basket according to claim 9, wherein: The shapes of the front guide plate (85) and the rear guide plate (86) are rhombic.

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