Automatic turnover basket unloading and off-line device of circulating transmission production line

Abstract

The invention discloses an automatic turnover basket unloading and off-line device of a cyclic transmission production line. The cyclic transmission production line comprises an annular guide rail; the turnover basket bearing frame movement guiding mechanisms are arranged on the annular guide rail; the front ends of the turnover basket bearing frames are hinged to the rear side of the turnover basket bearing frame movement guiding mechanism, and the rear ends of the turnover basket bearing frames are free ends of the turnover basket bearing frames; the turnover basket automatic unloading and off-line device comprises a locking plate which is connected with the front end of the turnover basket bearing frame; the left pivoting locking arm and the right pivoting locking arm correspond to each other; a left pivoting locking arm locking and releasing mechanism and a right pivoting locking arm locking and releasing mechanism; the locking arm free end pushing reset mechanism is used for enabling the locking arm free end to rise upwards or reset downwards; a push plate acting cylinder; and a turnover basket bearing frame trolley position signal collector. The guide rail is arranged on the lower portion of the annular guide rail supporting column. The turnover basket has the advantages that the structure of the turnover basket is simplified, the integrity and the strength of the turnover basket are improved, and the turnover basket and articles can be conveniently stored in required places.

Description

Technical Field

[0001] This invention belongs to the technical field of light industrial product assembly line production equipment, specifically relating to an automatic unloading device for turnover baskets in a circulating transmission production line. Background Technology

[0002] The aforementioned circular conveyor production line, also known as a ring conveyor production line, is mainly used in the garment processing industry, but it can also be used in processing industries such as shoes, hats, bags, electronic and electrical products, and dolls.

[0003] Taking garment manufacturers as an example, the production process of a garment typically includes several steps such as cutting, sewing, making buttonholes, sewing on buttons, attaching zippers, attaching pocket pieces, attaching garment pieces, attaching collars, attaching sleeves, attaching plackets, and ironing. These steps are usually carried out in a division of labor and automation manner. For example, using the aforementioned circular conveyor line, i.e., a circular conveyor device for object circulation, in an assembly line operation mode, the recognized advantages of the assembly line operation mode are: it can link employees who would otherwise be working separately, enabling them to cooperate with each other, promptly identify various problems arising in the cooperation process, and promptly identify issues affecting quality and efficiency. At the same time, it allows the team leader to maintain management and tracking of each workstation, and promptly handle abnormal factors affecting the production line; it does not require additional management personnel for the production line, can significantly improve employee morale and maximize the potential of employees at each workstation, and eliminate bottleneck processes and hidden costs. Source visualization enables all team members to focus on bottleneck processes, fostering a collaborative team atmosphere. Relying on teamwork, employees mutually supervise and assist each other, facilitating production line management and ultimately improving efficiency in a relaxed and enjoyable work environment. It transmits output, quality, and individual completion time data to computers in real time, and to cloud servers as needed. Software analysis allows for the understanding of each employee's actual completion time, enabling managers to monitor production status on computers or mobile devices. This helps managers manage employees and adjust their roles, achieving effective employee management and improved garment production efficiency.

[0004] The positive significance of the "workstation-selectable object circulation and transfer device" recommended by Chinese patent CN214609912U lies in its ability to automatically release objects in the turnover basket to any workstation position as needed, thereby meeting the workstation selection requirements in multi-variety, small-batch processing. It also significantly simplifies the structure, facilitating manufacturing and assembly, saving equipment investment costs, enhancing usability, and reducing maintenance workload. As the trend towards multi-variety, small-batch garment production continues, workstation sequencing methods adapted to large-batch production are difficult, if not impossible, to adapt to production methods with limited batch sizes and even one-style-one-position (re-arranging of processes). The practice of re-arranging machines and workers countless times a day is clearly impractical. CN214609912U addresses this problem.

[0005] The key technical feature of CN214609912U is that the bottom edge of the turnover basket cavity facing the back plate of the turnover basket is hinged to the lower edge of the back plate of the turnover basket, making the side of the bottom plate of the turnover basket cavity away from the back plate a free end that can be opened and closed. This opening and closing is achieved by the bottom plate opening and closing control mechanism of the turnover basket cavity under the control of the PLC of the electrical control device. When it is necessary to automatically unload (unload) the items from any turnover basket in a set of turnover baskets on the circulating production line, under the control of the aforementioned PLC, one of the bottom plate opening and closing control mechanisms of the turnover basket cavity corresponding to the item to be released is activated, thereby opening the corresponding bottom plate of the turnover basket cavity, and the unloaded item automatically falls into the item receiving mechanism, which has a slide-like effect.

[0006] However, CN214609912U requires a hinged connection between the bottom plate and the back plate of the crate, and also requires the upper and lower guide rails of the crate transfer mechanism to form a rolling pair (with an upper roller, middle roller, and lower roller on the side of the crate back plate facing the upper and lower guide rails), and the crate back plate to be connected to the chain. Therefore, although the crate running drive mechanism drives the chain of the crate transfer mechanism to move, causing the crate to move around the crate for transfer... The structure of the mechanism, with its circular upper and lower guide rails, exhibits an active motion mode. However, this is quite complex for the structure of the turnover basket, resulting in numerous processing and assembly elements, and the overall structure of the basket is relatively fragile. Because the turnover basket is connected to the chain and cannot be removed from the line (i.e., it cannot leave its initial setting position), after the items are unloaded into the aforementioned item receiving mechanism, employees still need to take the items from the mechanism, collect them, and place them in the required location, thus increasing the number of steps involved in collecting the items. Summary of the Invention

[0007] The objective of this invention is to provide an automatic unloading device for a circulating transport production line that facilitates the transformation of the active operation mode of the turnover basket into a passive operation mode in which the turnover basket is carried by a support frame. This significantly simplifies the structure of the turnover basket, improves its overall integrity and strength, and allows the turnover basket and its contents to be conveniently placed in the required location at a specific workstation.

[0008] The objective of this invention is achieved as follows: an automatic unloading device for turnover baskets in a circulating conveyor production line, wherein the circulating conveyor production line includes an annular guide rail, which is mounted on spaced-apart annular guide rail support columns; a set of turnover basket carrier frame moving guide mechanisms, which are spaced-apart on the annular guide rail and form a rolling pair with the annular guide rail; and a number of turnover basket carrier frames equal to the number of the set of turnover basket carrier frame moving guide mechanisms, wherein the front end of each turnover basket carrier frame is hinged to the rear side of the turnover basket carrier frame moving guide mechanism, and the rear end of the turnover basket carrier frame is configured as the free end of the turnover basket carrier frame; the automatic unloading device for turnover baskets includes a... The locking plates, the number of which is equal to the number of the moving guide mechanisms of the turnover basket support frame, are connected to the front end of the turnover basket support frame at a position corresponding to the front side of the moving guide mechanism. A left pivot locking arm and a right pivot locking arm are positioned opposite each other. The left end of the left pivot locking arm is pivotally positioned in front of the locking plates, and the left end of the left pivot locking arm is bent to the right to form a left pivot locking arm locking pin inclined guide plate. The right end of the right pivot locking arm is pivotally positioned in front of the locking plates, and the right end of the right pivot locking arm is bent to the left to form a right pivot locking arm locking pin inclined guide plate. The opposing ends of the left and right pivot locking arms are each configured to rise upwards or downwards. The locking arm has a free end that resets downwards; a left pivoting locking arm locking release mechanism and a right pivoting locking arm locking release mechanism. The left pivoting locking arm locking release mechanism is positioned on the front side of the moving guide mechanism of the turnover basket support frame, corresponding to the left end of the left pivoting locking arm, and engages or disengages with the left end of the left pivoting locking arm. The right pivoting locking arm locking release mechanism is positioned on the front side of the moving guide mechanism of the turnover basket support frame, corresponding to the right end of the right pivoting locking arm, and engages or disengages with the right end of the right pivoting locking arm; a locking arm free end push-reset mechanism for raising or lowering the free end of the locking arm, which is connected to the front side of the locking plate. The device is connected to and simultaneously connected to the free ends of the locking arms at opposite ends of the left and right pivot locking arms; a push plate cylinder and a rotating basket support trolley position signal collector are arranged in a left-right correspondence between the push plate cylinder and the rotating basket support trolley position signal collector at the lower part of the annular guide rail support column; when the rotating basket support frame moving guide mechanism moves along the annular guide rail to the position above the rotating basket support trolley position signal collector, the rotating basket support trolley position signal collector collects the signal and feeds the collected signal back to the electrical controller, which then causes the push plate cylinder to work and pushes the free end of the locking arm to push and reset the mechanism.

[0009] In a specific embodiment of the present invention, the moving guide mechanism for the turnover basket support frame includes a moving trolley body, a pair of front roller sleeves, and a pair of rear roller sleeves. A front folded edge is formed on the front side of the trolley body, perpendicular to the front edge of the trolley body, and folds backward at its lower part to form a front roller sleeve shaft support folded edge. A rear folded edge is formed on the rear side of the trolley body, perpendicular to the rear edge of the trolley body, and folds forward at its lower part to form a rear roller sleeve shaft support folded edge. This rear roller sleeve shaft support folded edge corresponds to the front roller sleeve shaft support folded edge. Each front roller sleeve is rotatably mounted at the midpoint of the height direction of the front roller sleeve shaft via bearings, corresponding to a position between the trolley body and the front roller sleeve shaft support flange. The upper end of the front roller sleeve shaft protrudes from the surface of the trolley body and is locked by a front roller sleeve shaft locking nut, while the lower end of the front roller sleeve shaft extends below the front roller sleeve shaft support flange and is also locked by a front roller sleeve shaft locking nut. A pair of front roller sleeves and the outward-facing surface of the annular guide rail form a rolling pair. A pair of rear roller sleeves are rotatably mounted at the midpoint of the height direction of the rear roller sleeve shaft via bearings, corresponding to a position between the trolley body and the rear roller sleeve shaft support flange. The upper end of the rear roller sleeve shaft protrudes from the upper surface of the trolley body and is locked by a front roller sleeve shaft locking nut. The rear roller sleeve shaft is locked by a locking nut, and the lower end of the rear roller sleeve shaft extends below the rear roller sleeve shaft support flange and is also locked by the rear roller sleeve shaft locking nut. A pair of rear roller sleeves and the inward-facing surface of the annular guide rail form a rolling pair. One or a pair of trolley body running drive mechanism chain connecting feet extend downward along the lower edge of the front flange of the trolley body. The front end of the turnover basket support frame is hinged to the upper part of the rear flange of the trolley body. The locking plate is connected to the front end of the turnover basket support frame at a position corresponding to the front side of the front flange of the trolley body, and a locking plate flange is folded forward at the lower part of the locking plate. The free end of the locking arm pushes back to its original position. The mechanism is connected to the locking plate and the free ends of the locking arms at opposite ends of the left and right pivoting locking arms at the midpoint of the length direction corresponding to the folded edge of the locking plate; the locking release mechanism of the left pivoting locking arm is located on the front side of the front folded edge of the trolley body at the position corresponding to the left end of the left pivoting locking arm, and the locking release mechanism of the right pivoting locking arm is located on the front side of the front folded edge of the trolley body at the position corresponding to the right end of the right pivoting locking arm; the bottom of the annular guide rail support column is supported on a column support arm; the push plate action cylinder and the turnover basket carrier trolley position signal acquisition device are arranged on the column support arm in a left-right corresponding state.

[0010] In another specific embodiment of the present invention, a hinged crossbeam of the turnover basket support frame is fixed at the front end of the turnover basket support frame. The hinged crossbeam of the turnover basket support frame is hinged to the upper part of the rear folded edge of the trolley body through the hinge of the hinged crossbeam of the turnover basket support frame; the cross-sectional shape of the hinged crossbeam of the turnover basket support frame is L-shaped.

[0011] In another specific embodiment of the present invention, the upper part of the locking plate protrudes from the upper surface of the trolley body and has a set of locking plate connecting screw holes spaced from left to right. A locking plate fixing beam is fixed at the front end of the turnover basket support frame and at a position corresponding to the upper part of the locking plate. On the locking plate fixing beam, a number of locking plate fixing beam screw holes are opened at positions corresponding to the locking plate connecting screw holes, equal to the number of locking plate connecting screw holes. The upper part of the locking plate abuts against the rear side of the locking plate fixing beam and is locked by locking plate connecting screws passing from back to front through the locking plate fixing beam screw holes and the locking plate connecting screw holes in sequence, and then locked by locking plate connecting screw locking nuts. The cross-sectional shape of the locking plate fixing beam is L-shaped.

[0012] In another specific embodiment of the present invention, the left end of the left pivot locking arm is hinged to the front left edge of the locking plate via a left pivot locking arm pin and is limited by a left pivot locking arm limiting nut screwed onto the front end of the left pivot locking arm pin; the right end of the right pivot locking arm is hinged to the front right edge of the locking plate via a right pivot locking arm pin and is limited by a right pivot locking arm limiting nut screwed onto the front end of the right pivot locking arm pin.

[0013] In another specific embodiment of the present invention, the left pivot locking arm locking release mechanism includes a left spring pin sleeve fixing seat and a left spring pin. The left spring pin sleeve fixing seat is fixed to the front side of the front fold of the trolley body at a position corresponding to the left end of the left pivot locking arm. The left spring pin is disposed on the left spring pin sleeve fixing seat, and the right end of the left spring pin engages or disengages with the left end of the left pivot locking arm. The right pivot locking arm locking release mechanism includes a right spring pin sleeve fixing seat and a right spring pin. The right spring pin sleeve fixing seat is fixed to the front side of the front fold of the trolley body at a position corresponding to the right end of the right pivot locking arm. The right spring pin is disposed on the right spring pin sleeve fixing seat, and the left end of the right spring pin engages or disengages with the right end of the right pivot locking arm.

[0014] In a further specific embodiment of the present invention, a left pivot locking arm push lug is formed by folding forward at the lower right end of the left pivot locking arm, and a right pivot locking arm push lug is formed by folding forward at the lower left end of the right pivot locking arm; the locking arm free end push-reset mechanism includes a left push rod, a right push rod, a push plate, a push rod sliding guide plate, a push rod upper end connecting piece, a left reset tension spring and a right reset tension spring. The left push rod and the right push rod are parallel to each other in a longitudinal state. A left push rod fixing hole and a right push rod fixing hole are formed on the push plate at the position corresponding to the lower end of the left push rod and at the position corresponding to the lower end of the right push rod, respectively. The lower end of the left push rod is fixed at the position corresponding to the left push rod fixing hole. The left push rod is inserted into the fixing hole of the hole and fixed to the push plate. The lower end of the right push rod is inserted into the right push rod fixing hole at the position corresponding to the right push rod fixing hole and fixed to the push plate. The upper ends of the left and right push rods pass through the locking plate flange and the push rod sliding guide plate from bottom to top, and are respectively aligned with the downward-facing side of the left and right pivot locking arm push ears. The push rod sliding guide plate is set in a horizontal state, and its rear side is fixed to the front side of the locking plate. The upper end connecting piece of the push rod is fixedly connected between the upper ends of the left and right push rods at the position corresponding to the upper part of the push rod sliding guide plate. The upper end of the left return spring is on the left side corresponding to the left pivot locking arm push ear. The position is hooked to the middle of the left pivot locking arm, while the lower end of the left return spring is hooked to the folded edge of the locking plate. The upper end of the right return spring is hooked to the middle of the right pivot locking arm at the position corresponding to the right side of the right pivot locking arm push lug, while the lower end of the right return spring is hooked to the folded edge of the locking plate. During the movement of the trolley body along the annular guide rail, the front folded edge of the trolley body drives the locking plate, the locking release mechanism of the left pivot locking arm, and the locking release mechanism of the right pivot locking arm to move accordingly. At the same time, the locking plate drives the left pivot locking arm, the right pivot locking arm, and the free end push-reset mechanism of the locking arm to move accordingly. And when the push plate moves to the position corresponding to the push plate action cylinder and the circumference... When the push plate is positioned above the position signal collector of the turnover basket support trolley, the position signal collector collects the position signal of the push plate and feeds it back to the electrical controller. The electrical controller sends a working signal to the push plate action cylinder, which pushes the push plate. The push plate drives the left push rod and the right push rod to simultaneously pass through the left pivot locking arm push lug and the right pivot locking arm push lug, respectively, causing the free ends of the locking arms of the left and right pivot locking arms to rise upward. At the same time, the locking release mechanism of the left and right pivot locking arms releases the locking of the left and right pivot locking arms. The upper part of the locking plate, together with the rear end of the turnover basket support frame, tilts downward, and the turnover basket placed on it slides down.

[0015] In a further specific embodiment of the present invention, the left spring pin holder fixing seat is fixed to the front middle of the left spring pin holder fixing seat plate by a left spring pin holder fixing screw, and the upper and lower ends of the rear side of the left spring pin holder fixing seat plate are fixed to the front folded edge of the trolley body; the right spring pin holder fixing seat is fixed to the front middle of the right spring pin holder fixing seat plate by a right spring pin holder fixing screw, and the upper and lower ends of the rear side of the right spring pin holder fixing seat plate are fixed to the front folded edge of the trolley body.

[0016] In yet another specific embodiment of the present invention, a left push rod clearance hole is provided on the locking plate flange at a position corresponding to the left push rod, and a right push rod clearance hole is provided at a position corresponding to the right push rod; a left push rod clearance hole is provided on the push rod sliding guide plate at a position corresponding to the left push rod, and a right push rod clearance hole is provided at a position corresponding to the right push rod. The upper end of the left push rod passes through the left push rod clearance hole and the left push rod clearance hole of the push rod sliding guide plate sequentially from bottom to top, and then corresponds to the downward-facing side of the left pivot locking arm push lug. The upper end of the right push rod passes through the right push rod clearance hole and the right push rod clearance hole of the push rod sliding guide plate sequentially from bottom to top, and then corresponds to the right pivot locking arm. The side facing downwards corresponds to the push lug. A left return spring upper end hooking hole is provided in the middle of the left pivot locking arm and at the left side of the push lug. A left return spring lower end hooking hole is provided on the locking plate folded edge and at the position corresponding to the lower end of the left return spring. The upper end of the left return spring is hooked into the left return spring upper end hooking hole, and the lower end of the left return spring is hooked into the left return spring lower end hooking hole. A right return spring upper end hooking hole is provided in the middle of the right pivot locking arm and at the right side of the push lug. A right return spring lower end hooking hole is provided on the locking plate folded edge and at the position corresponding to the lower end of the right return spring. The upper end of the right return spring is hooked into the right return spring upper end hooking hole, and the lower end of the right return spring is hooked into the right return spring lower end hooking hole.

[0017] In yet another specific embodiment of the present invention, a U-shaped bracket is fixed on the column support arm and at the front end of the column support arm. The push plate cylinder is longitudinally fixed to the left end of the U-shaped bracket with its cylinder column facing upwards, while the turnover basket carrier trolley position signal collector is fixed to the right end of the U-shaped bracket, and the signal acquisition sensor head of the turnover basket carrier trolley position signal collector faces upwards. The push plate cylinder is a cylinder, and the turnover basket carrier trolley position signal collector is a position sensor.

[0018] The technical advantage of the present invention is as follows: Because a surrounding basket support frame for placing turnover baskets is used, and the front end of the turnover basket support frame is hinged to the rear side of the turnover basket support frame moving guide mechanism, while the rear end is configured as the free end of the turnover basket support frame, when the turnover basket support frame moving guide mechanism moves along the annular guide rail to a position above the position signal collector corresponding to the turnover basket support frame trolley and collects the signal, when the electrical controller receives the signal and causes the push plate actuating cylinder to work, the push plate actuating cylinder acts on the free end of the locking arm to push the reset mechanism, and the free end of the locking arm pushes the reset mechanism. By pivoting the left and right locking arms to release the locking plate, the upper part of the locking plate connected to the front end of the turnover basket support frame flips backward, and the rear end of the turnover basket support frame tilts down and unloads the turnover basket placed on it. Therefore, compared with the existing technology, there is no need for the turnover basket to move autonomously. The active operation mode of the turnover basket is changed to a passive operation mode in which it is carried by the turnover basket support frame. This can significantly simplify the structure of the turnover basket and improve its integrity and strength. It can also facilitate the storage of the turnover basket and its contents in the required location when they are unloaded at a specific workstation. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of an embodiment of the present invention.

[0020] Figure 2 for Figure 1 Enlarged view of part A.

[0021] Figure 3 for Figure 1 The diagram shows a detailed structural diagram of the left spring pin of the left pivot locking arm locking release mechanism.

[0022] Figure 4 for Figure 1 The diagram shows a detailed structural diagram of the right spring pin of the right pivot locking arm locking release mechanism.

[0023] Figure 5 for Figure 1 The diagram shows an embodiment of the annular guide rail.

[0024] Figure 6 for Figure 1 The diagram shown illustrates how the turnover basket support frame unloads the turnover basket. Detailed Implementation

[0025] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0026] In the following description, all directional or orientational concepts involving up, down, left, right, front, and back are based on Figure 1 The location and state of the object are examples, and therefore should not be construed as a special limitation on the technical solution provided by the present invention.

[0027] Please see Figure 1 and Figure 2The diagram illustrates a circular guide rail 1 of a circulating conveyor production line structure, mounted on spaced-apart circular guide rail support columns 11. It also shows a set of movable guide mechanisms 2 for transporting crates, spaced apart on the circular guide rail 1 and forming a rolling pair with it. Finally, it shows a number of transport crate carriers 3 equal to the number of the movable guide mechanisms 2, with the front end of each carrier hinged to the rear end of one of the movable guide mechanisms 2, and the rear end of each carrier serving as the transport crate carrier. The free end shows a locking plate 4 of the aforementioned automatic unloading and unloading device for turnover baskets. The number of locking plates 4 is equal to the number of the aforementioned turnover basket support frame moving guide mechanisms 2, and they are connected to the front end of the aforementioned turnover basket support frame 3 at a position corresponding to the front side of the turnover basket support frame moving guide mechanism 2. A left pivot locking arm 5 and a right pivot locking arm 6 are shown, which are corresponding to each other. The left end of the left pivot locking arm 5 is pivotally (i.e., rotatably set) on the front side of the aforementioned locking plate 4, and the left end of the left pivot locking arm 5 is bent to the right to form a left pivot locking arm locking pin inclined guide plate 51. The right end of the right pivot locking arm 6 is pivotally (i.e., rotatably) positioned in front of the aforementioned locking plate 4, and the right end of the right pivot locking arm 6 is bent to the left to form a right pivot locking arm locking pin inclined guide plate 61. The opposing ends of the left and right pivot locking arms 5 and 6 are each configured as free ends of locking arms that either rise (raise) or return to their original position. A left pivot locking arm locking release mechanism 10 and a right pivot locking arm locking release mechanism 20 are shown. The left pivot locking arm locking release mechanism 10 is positioned in front of the aforementioned turnover basket support frame moving guide mechanism 2 at a position corresponding to the left end of the aforementioned left pivot locking arm 5. The left pivot locking arm 5 is engaged or disengaged from the left end of the left pivot locking arm 5. The right pivot locking arm locking release mechanism 20 is located on the front side of the turnover basket support frame moving guide mechanism 2 at the position corresponding to the right end of the aforementioned right pivot locking arm 6 and is engaged or disengaged from the right end of the right pivot locking arm 6. A locking arm free end push reset mechanism 7 is shown for raising or lowering the free end of the aforementioned locking arm. The locking arm free end push reset mechanism 7 is connected to the lower front part of the aforementioned locking plate 4 and is also connected to the free ends of the aforementioned locking arms at opposite ends of the left pivot locking arm 5 and the right pivot locking arm 6.A push-plate cylinder 8 and a position signal acquisition device 9 for a rotating basket support trolley are shown. The push-plate cylinder 8 and the position signal acquisition device 9 are positioned opposite each other at the lower part of the aforementioned annular guide rail support column 11. When the rotating basket support frame moving guide mechanism 2 moves along the aforementioned annular guide rail 1 to above the position signal acquisition device 9, the position signal acquisition device 9 acquires a signal (i.e., a "position signal") and feeds it back to the electrical controller. The electrical controller then activates the push-plate cylinder 8 and pushes the free end of the locking arm push-reset mechanism 7 to operate.

[0028] See you later Figure 1 and Figure 2The aforementioned turnover basket support frame moving guide mechanism 2 includes a moving trolley body 21, a pair of front roller sleeves 22, and a pair of rear roller sleeves 23. A front folded edge 211 is formed on the front side of the trolley body 21, perpendicular to the front edge of the trolley body 21. The lower part of the front folded edge 211 folds backward to form a front roller sleeve shaft support folded edge 2111. A rear folded edge 212 is formed on the rear side of the trolley body 21, perpendicular to the rear edge of the trolley body 21. The lower part of the rear folded edge 212 folds forward to form a rear roller sleeve shaft support folded edge (not shown in the figure). This rear roller sleeve shaft support folded edge is connected to the aforementioned front roller sleeve shaft support folded edge 21. Correspondingly, a pair of front roller sleeves 22 are parallel to each other longitudinally and are rotatably mounted at the midpoint of the height direction of the front roller sleeve shaft 221 at a position corresponding to the position between the trolley body 21 and the front roller sleeve shaft support flange 2111. The upper end of the front roller sleeve shaft 221 protrudes from the surface of the trolley body 21 and is locked by the front roller sleeve shaft locking nut 2211, while the lower end of the front roller sleeve shaft 221 extends below the front roller sleeve shaft support flange 2111 and is also locked by the front roller sleeve shaft locking nut 2211. The pair of front roller sleeves 22 and the outward-facing surface of the aforementioned annular guide rail 1 form a rolling pair. A pair of rear roller sleeves 23 are parallel to each other longitudinally and are rotatably mounted by bearings at a position corresponding to the position between the trolley body 21 and the aforementioned rear roller sleeve shaft support flange. The rear roller sleeve 231 is positioned at the midpoint of its height direction. The upper end of the rear roller sleeve 231 protrudes from the upper surface of the trolley body 21 and is locked by the rear roller sleeve shaft locking nut 2311. The lower end of the rear roller sleeve 231 extends below the rear roller sleeve shaft support flange and is also locked by the rear roller sleeve shaft locking nut 2311. A pair of rear roller sleeves 23 and the inward-facing surface of the aforementioned annular guide rail 2 form a rolling pair. A trolley body running drive mechanism chain connecting foot 2112 extends downward from the lower edge of the aforementioned trolley body front flange 211. This trolley body running drive mechanism chain connecting foot 2112 can also be a pair. The front end of the aforementioned turnover basket support frame 3 is hinged to the upper part of the aforementioned trolley body rear flange 212 of the trolley body 21. The locking plate 4 is connected to the front end of the aforementioned turnover basket support frame 3 at the position corresponding to the front side of the aforementioned trolley body front fold 211, and a locking plate fold 41 is folded forward at the lower part of the locking plate 4. The aforementioned locking arm free end push reset mechanism 7 is connected to the locking plate 4 and the opposite ends of the aforementioned locking arms 5 and 6 at the middle position of the length direction corresponding to the locking plate fold 41. The aforementioned left pivot locking arm locking release mechanism 10 is set at the position corresponding to the left end of the aforementioned left pivot locking arm 5 at the front side of the aforementioned trolley body front fold 211, and the aforementioned right pivot locking arm locking release mechanism 20 is set at the position corresponding to the right end of the aforementioned right pivot locking arm 6 at the front side of the aforementioned trolley body front fold 211.The bottom of the aforementioned annular guide rail support column 11 is supported on a column support arm 111; the aforementioned push plate cylinder 8 and the turnover basket support trolley position signal acquisition device 9 are arranged on the aforementioned column support arm 111 in a left-right corresponding manner.

[0029] exist Figure 1 and Figure 2 The diagram also shows the connection between the vehicle body running drive mechanism chain 40 and the aforementioned vehicle body running drive mechanism chain connecting foot 2112.

[0030] Depend on Figure 1 As shown, a hinged crossbeam 31 of the aforementioned turnover basket support frame 3 is preferably fixed to the front end of the aforementioned turnover basket support frame 3 by welding. This hinged crossbeam 31 of the turnover basket support frame 3 is hinged to the upper part of the rear folded edge 212 of the aforementioned trolley body 21 through a hinge 311 of the hinged crossbeam of the turnover basket support frame 3. Figure 1 The figure shows a hinge connecting screw 3111, which is connected to the hinge of the hinge beam 311 at a position corresponding to the screw hole 312 opened on the hinge beam 31 of the turnover frame support frame, and is defined by a nut not shown in the figure; the cross-sectional shape of the aforementioned hinge beam 31 of the turnover frame support frame is L-shaped (using angle steel, i.e., L-shaped steel).

[0031] The upper part of the aforementioned locking plate 4 protrudes from the upper surface of the aforementioned trolley body 21 and has a set of locking plate connecting screw holes 42 at intervals from left to right. At the front end of the aforementioned turnover basket support frame 3 and at a position corresponding to the upper part of the locking plate 4, a locking plate fixing beam 32 is fixed. On the locking plate fixing beam 32, at a position corresponding to the locking plate connecting screw holes 42, there are a number of locking plate fixing beam screw holes 321 equal to the number of locking plate connecting screw holes 42. The upper part of the aforementioned locking plate 4 is abutted against the rear side of the locking plate fixing beam 32, and the locking plate connecting screws 421 pass through the locking plate fixing beam screw holes 321 and the locking plate connecting screw holes 42 in sequence from back to front, and are locked by the locking plate connecting screw locking nut 4211. The cross-sectional shape of the aforementioned locking plate fixing beam 32 is L-shaped (using angle steel, i.e., L-shaped steel).

[0032] The left end of the aforementioned left pivot locking arm 5 is hinged to the front left edge of the aforementioned locking plate 4 via the left pivot locking arm pin 52 and is limited by the left pivot locking arm limiting nut 521 screwed onto the front end of the left pivot locking arm pin 52. The right end of the aforementioned right pivot locking arm 6 is hinged to the front right edge of the aforementioned locking plate 4 via the right pivot locking arm pin 62 and is limited by the right pivot locking arm limiting nut 621 screwed onto the front end of the right pivot locking arm pin 62.

[0033] See you later Figure 1and Figure 2 The aforementioned left pivot locking arm locking release mechanism 10 includes a left spring pin sleeve fixing seat 101 and a left spring pin 102. The left spring pin sleeve fixing seat 101 is fixed to the front side of the front folded edge 211 of the trolley body at a position corresponding to the left end of the aforementioned left pivot locking arm 5. The left spring pin 102 is disposed on the left spring pin sleeve fixing seat 101, and the right end of the left spring pin 102 engages or disengages with the left end of the aforementioned left pivot locking arm 5. The aforementioned right pivot locking arm locking release mechanism 20 includes a right spring pin sleeve fixing seat 201 and a right spring pin 202. The right spring pin sleeve fixing seat 201 is fixed to the front side of the front folded edge 211 of the trolley body at a position corresponding to the right end of the aforementioned right pivot locking arm 6. The right spring pin 202 is disposed on the right spring pin sleeve fixing seat 201, and the left end of the right spring pin 202 engages or disengages with the right end of the aforementioned right pivot locking arm 6.

[0034] Please pay attention. Figure 2 And combined Figure 1A left pivot locking arm pusher 53 is formed by folding forward at the lower right end of the aforementioned left pivot locking arm 5, and a right pivot locking arm pusher 63 is formed by folding forward at the lower left end of the aforementioned right pivot locking arm 6. The aforementioned locking arm free end push-reset mechanism 7 includes a left push rod 71, a right push rod 72, a push plate 73, a push rod sliding guide plate 74, a push rod upper end connecting piece 75, a left reset tension spring 76, and a right reset tension spring 77. The left push rod 71 and the right push rod 72 are in a longitudinal position relative to each other. The push plate 73 is parallel to the left and right sides. A left push rod fixing hole 731 is provided at the lower end corresponding to the left push rod 71, and a right push rod fixing hole 732 is provided at the lower end corresponding to the right push rod 72. The lower end of the left push rod 71 is inserted into the left push rod fixing hole 731 and fixed to the push plate 73. The lower end of the right push rod 72 is inserted into the right push rod fixing hole 732 and fixed to the push plate 73. 73 is fixed. The upper ends of the left push rod 71 and the right push rod 72 pass through the aforementioned locking plate flange 41 and the push rod sliding guide plate 74 from bottom to top, and respectively correspond to the downward-facing sides of the aforementioned left pivot locking arm push lug 53 and right pivot locking arm push lug 63. The push rod sliding guide plate 74 is set in a horizontal state, and the rear side of the push rod sliding guide plate 74 is fixed to the front side of the aforementioned locking plate 4. The upper end connecting piece 75 of the push rod is fixed at a position corresponding to the upper part of the push rod sliding guide plate 74. The upper ends of the left push rod 71 and the right push rod 72 are fixedly connected. The upper end of the left return spring 76 is hooked to the middle of the left pivot locking arm 5 at the position corresponding to the left side of the left pivot locking arm push lug 53, while the lower end of the left return spring 76 is hooked to the aforementioned locking plate folded edge 41. The upper end of the right return spring 77 is hooked to the middle of the right pivot locking arm 6 at the position corresponding to the right side of the right pivot locking arm push lug 63, while the lower end of the right return spring 77 is hooked to the aforementioned locking plate folded edge 41.

[0035] During the movement of the trolley body 21 along the aforementioned annular guide rail 1, the front folded edge 211 of the trolley body drives the aforementioned locking plate 4, the left pivot locking arm locking release mechanism 10, and the right pivot locking arm locking release mechanism 20 to move accordingly. At the same time, the locking plate 4 drives the left pivot locking arm 5, the right pivot locking arm 6, and the aforementioned locking arm free end push-reset mechanism 7 to move accordingly. When the aforementioned push plate 73 moves to the position above the aforementioned push plate action cylinder 8 and the turnover basket support frame trolley position signal acquisition device 9, the turnover basket support frame trolley position signal acquisition device 9 acquires the position signal of the push plate 73 and transmits the position signal. Feedback is sent to the electrical controller, which sends a working signal to the push plate cylinder 8, which in turn pushes the push plate 73. The push plate 73 drives the aforementioned left push rod 71 and right push rod 72 to simultaneously pass through the left pivot locking arm push lug 53 and the right pivot locking arm push lug 63, causing the free ends of the aforementioned left and right pivot locking arms 5 and 6 to rise upwards. At the same time, the aforementioned left and right pivot locking arm locking release mechanisms 10 and 20 release the lock on the left and right pivot locking arms 5 and 6. The upper part of the aforementioned locking plate 4, together with the rear end of the aforementioned turnover basket support frame 3, tilts downwards, and the turnover basket 30 placed on the turnover basket support frame 3 slides down.

[0036] Depend on Figure 1 and Figure 2 As shown, the aforementioned left spring pin holder 101 is fixed to the front middle of the left spring pin holder carrier plate 1011 by a left spring pin holder fixing screw, and the upper and lower ends of the rear side of the left spring pin holder carrier plate 1011 are fixed to the front folded edge 211 of the aforementioned car body; the aforementioned right spring pin holder 201 is fixed to the front middle of the right spring pin holder carrier plate 2011 by a right spring pin holder fixing screw, and the upper and lower ends of the rear side of the right spring pin holder carrier plate 2011 are fixed to the front folded edge 211 of the aforementioned car body.

[0037] A left push rod clearance hole 411 is provided on the aforementioned locking plate flange 41 at the position corresponding to the aforementioned left push rod 71, and a right push rod clearance hole 412 is provided on the aforementioned right push rod 72; a left push rod clearance hole is provided on the aforementioned push rod sliding guide plate 74 at the position corresponding to the left push rod 71, and a right push rod clearance hole is provided on the aforementioned push rod sliding guide plate 74 at the position corresponding to the right push rod 72. The push rod clearance hole, the upper end of the aforementioned left push rod 71 passes from bottom to top through the aforementioned left push rod clearance hole 411 on the locking plate folded edge and the left push rod clearance hole on the push rod sliding guide plate, and then corresponds to the downward-facing side of the aforementioned left pivot locking arm push lug 53; the upper end of the aforementioned right push rod 72 passes from bottom to top through the aforementioned right push rod clearance hole 412 on the locking plate folded edge and the right push rod clearance hole on the push rod sliding guide plate, and then corresponds to the downward-facing side of the aforementioned right pivot locking arm push lug 63; in the front A left return spring upper end hooking hole 54 is provided in the middle of the left pivot locking arm 5 and on the left side of the left pivot locking arm push lug 53. A left return spring lower end hooking hole 413 is provided on the locking plate folded edge 41, corresponding to the lower end of the left return spring 76. The upper end of the left return spring 76 is hooked into the left return spring upper end hooking hole 54, and the lower end of the left return spring 76 is hooked into the left return spring lower end hooking hole 413. A right return spring upper end hooking hole 64 is provided in the middle of the aforementioned right pivot locking arm 6 and at the right side of the aforementioned right pivot locking arm push lug 63. A right return spring lower end hooking hole 414 is provided on the aforementioned locking plate folded edge 41 at the position corresponding to the lower end of the right return spring 77. The upper end of the aforementioned right return spring 77 is hooked in the aforementioned right return spring upper end hooking hole 64, and the lower end of the right return spring 77 is hooked in the aforementioned right return spring lower end hooking hole 414.

[0038] A U-shaped bracket 1111 is fixed on the aforementioned column support arm 111 and at the front end of the column support arm 111. The aforementioned push plate cylinder 8 is longitudinally fixed at the left end of the U-shaped bracket 1111 with its push plate cylinder column 81 facing upward. The aforementioned turnover basket carrier trolley position signal collector 9 is fixed at the right end of the U-shaped bracket 1111, and the signal acquisition sensor head 91 of the turnover basket carrier trolley position signal collector 9 faces upward.

[0039] In this embodiment, the aforementioned push plate action cylinder 8 is a cylinder, and the aforementioned turnover basket support frame trolley position signal acquisition device 9 is a position sensor.

[0040] Please see Figure 3 ,Should Figure 3The diagram shows the structure of the left pivot locking arm locking release mechanism 10, including a left spring pin 102. The left end of the left spring pin 102 extends a narrow, reduced-diameter rod 1021, significantly smaller than the diameter of the right end of the left spring pin 102. A left spring pin action spring 1022 is fitted onto the narrow, reduced-diameter rod 1021. A left spring sleeve 1023 is fitted over the left spring pin action spring 1022. A left spring sleeve cavity is formed at the center of the left end face of the left spring sleeve 1023. The left spring pin diameter narrow reduction rod end clearance hole 10232 is connected to 10231. The left end of the left spring pin diameter narrow reduction rod 1021 extends through the left spring sleeve cavity 10231 to the left spring pin diameter narrow reduction rod end clearance hole 10232 and is limited by the left retaining ring 10211 being inserted into the left retaining ring groove 10212 formed at the left end of the left spring pin diameter narrow reduction rod 1021. The left spring sleeve 1023 is limited between the left spring pin sleeve fixing seat carrier plates 1011 by the left spring pin sleeve fixing seat 101.

[0041] Please see Figure 4 ,Should Figure 4 The diagram illustrates the structure of the right pivot locking arm locking release mechanism 20, including a right spring pin 202. The right end of the right spring pin 202 extends a narrow, tapered rod 2021 with a diameter significantly smaller than that of the left end of the right spring pin 202. A right spring pin action spring 2022 is fitted onto the narrow, tapered rod 2021. A right spring sleeve 2023 is fitted over the right spring pin action spring 2022. A right spring sleeve cavity, corresponding to the right spring sleeve 2023, is formed at the center of the right end face of the right spring sleeve 2023. The right spring pin diameter narrow reduction rod end clearance hole 20232 is connected to the right spring pin diameter narrow reduction rod 2021. The right end of the aforementioned right spring pin diameter narrow reduction rod 2021 extends through the right spring sleeve cavity 20231 to the right spring pin diameter narrow reduction rod end clearance hole 20232 and is limited by the right snap ring 20211 being inserted into the right snap ring groove 20212 formed at the right end of the right spring pin diameter narrow reduction rod 2021. The aforementioned right spring sleeve 2023 is limited between the aforementioned right spring pin sleeve fixing seat and the aforementioned right spring pin sleeve fixing seat carrier plate 2011 by the aforementioned right spring pin sleeve fixing seat 201.

[0042] Please see Figure 5 This shows a complete embodiment of the aforementioned annular guide rail 1 as viewed from above, on which are arranged at intervals a number of... Figure 1 and Figure 2The aforementioned trolley body 21 of the turnover basket support frame moving guide mechanism 2, as shown, has a trolley body driving mechanism chain 40 that moves around the driving sprocket 50a and driven sprocket 50b of the trolley body driving mechanism structure system. That is, since one end of the trolley body driving mechanism chain 40 is fitted onto the driving sprocket 50a and the other end is fitted onto the driven sprocket 50b, and since the aforementioned trolley body driving mechanism chain connecting foot 2112 of the trolley body 21 is connected to the trolley body driving mechanism... The chain 40 is connected, so when the power of the trolley body running drive mechanism, such as the motor driving the gearbox and the final stage power output shaft of the gearbox driving the fixed drive sprocket 50a, the trolley body running drive mechanism chain 40 runs, driving the trolley body 21 and the left and right pivot locking arms 5, 6, left and right pivot locking arm locking release mechanisms 10, 20, locking arm free end push reset mechanism 7, locking plate 4, and turnover basket support frame 3, which are set on the trolley body 21 as the carrier, to run accordingly. Figure 1 and Figure 5 as well as Figure 6 The image also shows a 60mm rotating basket guide rail.

[0043] The structure of the chain 40 mentioned above can also use the chain structure disclosed in the "single-line ring device for turnover basket" recommended by CN218930692U, while making adaptive changes to the main and driven sprockets 50a and 50b and the chain connecting foot 2112 of the trolley body running drive mechanism.

[0044] Please see Figure 6 , Figure 6 The rear end of the turnover basket support frame 3 is shown to tilt downwards, causing the turnover basket 30, which was originally located on it, along with the materials inside, to fall, and the turnover basket guide frame 60 guides it to the ground.

[0045] Applicant combined Figures 1 to 6 The present invention describes the process of unloading the turnover basket from the production line at the workstation set by the PLC of the electrical controller (i.e., the unloading process of the turnover basket 30). Since the specific purpose can be found in CN214609912U (workstation selectable object circulation transfer device), the applicant will not repeat it here.

[0046] When the trolley body 21 is driven by the chain 40 of the trolley body running drive mechanism to reach the position above the aforementioned turnover basket support trolley position signal collector 9, more specifically, when the push plate 73 of the structure system of the locking arm free end push reset mechanism 7 moves to a level that can be detected (or "detected") by the signal acquisition sensor head 91 of the turnover basket support trolley position signal collector 9, the turnover basket support trolley position signal collector 9 feeds back the signal to the electrical controller, and the electrical controller sends a working command to the push plate action cylinder 8. The push plate action cylinder 8 works, causing its push plate action cylinder column 81 to quickly extend upward and outward from the cylinder body. The push plate action cylinder column 81 pushes the push plate 73 upward. After the action of pushing the push plate 73 is completed, the push plate action cylinder column 81 retracts and returns, that is, the push plate action cylinder 8 reverses its work and returns to the previous standby state (or "initial state") where it has stopped working. As the aforementioned push plate 73 is pushed upward, the push plate 73 drives the left and right push rods 71 ​​and 72 to move upward. The upper end faces of the left and right push rods 71 ​​and 72 simultaneously push the left and right pivot locking arm push ears 53 and 63, respectively. The opposing ends of the left and right pivot locking arms 5 and 6, i.e., the free ends of the aforementioned locking arms, overcome the reaction force (tension) of the left and right return springs 76 and 77 and rise upward. Since the action process of the left and right pivot locking arms 5 and 6 is the same, the applicant will only describe the former, i.e., only the left pivot locking arm 5, in detail below.

[0047] During the upward movement of the free end of the left pivot locking arm 5, the left return spring 76 extends, and the left end of the left pivot locking arm 5 rotates counterclockwise around the left pivot locking arm pin 52. During this process, the left spring pin 102, which was originally in a state that limited the left end of the left pivot locking arm 5, i.e., located on the upper surface of the left end of the left pivot locking arm 5, moves to the left under the condition of overcoming the action of the left spring pin and the spring 1022. That is, the left spring pin 102 gradually retracts into the left spring sleeve cavity 10231 of the left spring sleeve 1023. During the retraction process, as the left pivot locking arm 5 rotates counterclockwise, the right end face of the left spring pin 102 will be attached to the left side of the left pivot locking arm locking pin inclined guide plate 51. When the left pivot locking arm 5 rises to the point of completely breaking free from the control of the left spring pin 102, the balance between the rear and front ends of the turnover basket support frame 3 is disrupted. The front end of the turnover basket support frame 3 tilts upward, causing the locking plate 4, along with the aforementioned components mounted on it, to swing backward at a certain angle. At this moment, the rear end of the turnover basket support frame 3 immediately (instantly) drops downward, exhibiting a downward tilt. Figure 6 As shown, the turnover basket 30 it carries slides down, and then slides to the ground via the turnover basket guide frame 60. Figure 6 (As shown). After the turnover basket 30 is removed from the turnover basket support frame 3, the turnover basket support frame 3 returns to its original position under the restoring force of the aforementioned left and right return springs 76 and 77. Figure 1 The current state. The applicant needs to clarify that the concepts of clockwise and counterclockwise mentioned earlier are also based on... Figure 1 The position shown is an example.

[0048] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. An automatic unloading device for turnover baskets in a circulating conveying production line, the circulating conveying production line comprising an annular guide rail (1) arranged on annular guide rail support columns (11) spaced apart; a set of turnover basket carrier frame moving guide mechanisms (2) arranged at intervals on the annular guide rail (1) and forming a rolling pair with the annular guide rail (1); a number of turnover basket carrier frames (3) equal to the number of the set of turnover basket carrier frame moving guide mechanisms (2), the front end of the turnover basket carrier frame (3) being hinged to the rear side of the turnover basket carrier frame moving guide mechanism (2), and the rear end of the turnover basket carrier frame (3) constituting a free end of the turnover basket carrier frame; characterized in that: The automatic unloading and unloading device for the turnover baskets includes a locking plate (4), the number of which is equal to the number of the turnover basket support frame moving guide mechanism (2), and is connected to the front end of the turnover basket support frame (3) at a position corresponding to the front side of the turnover basket support frame moving guide mechanism (2); a left pivot locking arm (5) and a right pivot locking arm (6) corresponding to each other, the left end of the left pivot locking arm (5) is pivotally positioned in front of the locking plate (4), and the left end of the left pivot locking arm (5) is bent to the right to form a left pivot locking arm locking pin inclined guide plate (51), and the right pivot locking arm (6) is... The right end is pivotally mounted on the front side of the locking plate (4), and the right end of the right pivot locking arm (6) is bent to the left to form a right pivot locking arm locking pin inclined guide plate (61). The opposite ends of the left and right pivot locking arms (5, 6) are each configured as free ends of the locking arms that rise upwards or return downwards. A left pivot locking arm locking release mechanism (10) and a right pivot locking arm locking release mechanism (20) are provided. The left pivot locking arm locking release mechanism (10) is located on the front side of the turnover basket support frame moving guide mechanism (2) at the position corresponding to the left end of the left pivot locking arm (5) and cooperates with the left end of the left pivot locking arm (5). Or disengage, the right pivot locking arm locking release mechanism (20) is located at the position corresponding to the right end of the right pivot locking arm (6) on the front side of the turnover basket support frame moving guide mechanism (2) and engages or disengages with the right end of the right pivot locking arm (6); a locking arm free end push reset mechanism (7) for raising or lowering the free end of the locking arm, the locking arm free end push reset mechanism (7) is connected to the lower front part of the locking plate (4) and is also connected to the opposite ends of the left pivot locking arm (5) and the right pivot locking arm (6); a push plate action cylinder (8) and a rotation The basket support trolley position signal collector (9), the push plate action cylinder (8), and the turnover basket support trolley position signal collector (9) are arranged in a left-right correspondence with each other at the lower part of the annular guide rail support column (11). When the turnover basket support frame moving guide mechanism (2) moves along the annular guide rail (1) to the position above the turnover basket support trolley position signal collector (9), the turnover basket support trolley position signal collector (9) collects the signal and feeds the collected signal back to the electrical controller. The electrical controller then makes the push plate action cylinder (8) work and pushes the locking arm free end push reset mechanism (7) to move.

2. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 1, characterized in that: The aforementioned turnover basket support frame moving guide mechanism (2) includes a moving trolley body (21), a pair of front roller sleeves (22) and a pair of rear roller sleeves (23). A trolley body front fold (211) is formed on the front side of the trolley body (21), which is perpendicular to the front edge of the trolley body (21) and folds backward at the lower part of the trolley body front fold (211) to form a front roller sleeve shaft support fold (2111). A trolley body rear fold (212) is formed on the rear side of the trolley body (21), which is perpendicular to the rear edge of the trolley body (21) and folds forward at the lower part of the trolley body rear fold (212). The structure includes a rear roller sleeve shaft support flange, which corresponds to the front roller sleeve shaft support flange (2111). A pair of front roller sleeves (22) are rotatably mounted at the midpoint of the height direction of the front roller sleeve shaft (221) at positions corresponding to the position between the trolley body (21) and the front roller sleeve shaft support flange (2111). The upper end of the front roller sleeve shaft (221) protrudes from the surface of the trolley body (21) and is locked by a front roller sleeve shaft locking nut (2211), while the lower end of the front roller sleeve shaft (221) extends below the front roller sleeve shaft support flange (2111) and is also locked by a front roller sleeve shaft locking nut (2211). The pair of front roller sleeves (22) and the annular guide rail ( 1) The outward-facing surface forms a rolling pair. A pair of rear roller sleeves (23) are rotatably mounted at the midpoint of the height direction of the rear roller sleeve shaft (231) at positions corresponding to the car body (21) and the rear roller sleeve shaft support flange, respectively. The upper end of the rear roller sleeve shaft (231) protrudes from the upper surface of the car body (21) and is locked by the rear roller sleeve shaft locking nut (2311), while the lower end of the rear roller sleeve shaft (231) extends below the rear roller sleeve shaft support flange and is also locked by the rear roller sleeve shaft locking nut (2311). The pair of rear roller sleeves (23) and the inward-facing surface of the annular guide rail (2) form a rolling pair; the lower edge of the front flange (211) of the car body is downward The extension has one or a pair of chain connecting feet (2112) for the trolley body running drive mechanism; the front end of the turnover basket support frame (3) is hinged to the upper part of the rear fold (212) of the trolley body (21); the locking plate (4) is connected to the front end of the turnover basket support frame (3) at the position corresponding to the front side of the front fold (211) of the trolley body, and a locking plate fold (41) is folded forward at the lower part of the locking plate (4); the locking arm free end push reset mechanism (7) is connected to the locking plate (4) and the opposite ends of the locking arms (5, 6) at the middle position of the length direction corresponding to the locking plate fold (41);The left pivot locking arm locking release mechanism (10) is positioned at the left end of the left pivot locking arm (5) on the front side of the front folded edge (211) of the trolley body, and the right pivot locking arm locking release mechanism (20) is positioned at the right end of the right pivot locking arm (6) on the front side of the front folded edge (211) of the trolley body; the bottom of the annular guide rail support column (11) is supported on a column support arm (111); the push plate action cylinder (8) and the turnover basket carrier trolley position signal acquisition device (9) are positioned on the column support arm (111) in a left-right corresponding manner.

3. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 2, characterized in that: A hinged crossbeam (31) is fixed at the front end of the turnover basket support frame (3). The hinged crossbeam (31) is hinged to the upper part of the rear folded edge (212) of the trolley body (21) through the hinge (311) of the hinged crossbeam; the cross-sectional shape of the hinged crossbeam (31) is L-shaped.

4. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 2, characterized in that: The upper part of the locking plate (4) protrudes from the upper surface of the trolley body (21) and has a set of locking plate connecting screw holes (42) spaced from left to right. A locking plate fixing beam (32) is fixed at the front end of the turnover basket support frame (3) and at the position corresponding to the upper part of the locking plate (4). On the locking plate fixing beam (32), the number of locking plate fixing beam screw holes (321) is equal to the number of locking plate connecting screw holes (42). The upper part of the locking plate (4) is close to the rear side of the locking plate fixing beam (32) and the locking plate connecting screw (421) passes through the locking plate fixing beam screw hole (321) and the locking plate connecting screw hole (42) from back to front and is locked by the locking plate connecting screw locking nut (4211). The cross-sectional shape of the locking plate fixing beam (32) is L-shaped.

5. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 2, characterized in that: The left end of the left pivot locking arm (5) is hinged to the front left edge of the locking plate (4) via the left pivot locking arm pin (52) and is limited by the left pivot locking arm limiting nut (521) screwed on the front end of the left pivot locking arm pin (52). The right end of the right pivot locking arm (6) is hinged to the front right edge of the locking plate (4) via the right pivot locking arm pin (62) and is limited by the right pivot locking arm limiting nut (621) screwed on the front end of the right pivot locking arm pin (62).

6. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 2, characterized in that: The left pivot locking arm locking release mechanism (10) includes a left spring pin sleeve fixing seat (101) and a left spring pin (102). The left spring pin sleeve fixing seat (101) is fixed to the front side of the front folded edge (211) of the trolley body at the position corresponding to the left end of the left pivot locking arm (5). The left spring pin (102) is set on the left spring pin sleeve fixing seat (101), and the right end of the left spring pin (102) is engaged or disengaged from the left end of the left pivot locking arm (5). The right pivot locking arm locking release mechanism (20) includes a right spring pin sleeve fixing seat (201) and a right spring pin (202). The right spring pin sleeve fixing seat (201) is fixed to the front side of the front folded edge (211) of the trolley body at the position corresponding to the right end of the right pivot locking arm (6). The right spring pin (202) is set on the right spring pin sleeve fixing seat (201), and the left end of the right spring pin (202) is engaged or disengaged from the right end of the right pivot locking arm (6).

7. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 2, characterized in that: A left pivot locking arm pusher (53) is formed by folding forward at the lower right end of the left pivot locking arm (5), and a right pivot locking arm pusher (63) is formed by folding forward at the lower left end of the right pivot locking arm (6); the locking arm free end push-reset mechanism (7) includes a left push rod (71), a right push rod (72), a push plate (73), a push rod sliding guide plate (74), a push rod upper end connecting piece (75), a left reset tension spring (76), and a right reset tension spring (77), with the left push rod (71) and the right push rod (72) longitudinally aligned with each other. The push plate (73) is parallel to the left and right sides. A left push rod fixing hole (731) is provided on the push plate (73) at the lower end corresponding to the left push rod (71), and a right push rod fixing hole (732) is provided at the lower end corresponding to the right push rod (72). The lower end of the left push rod (71) is inserted into the left push rod fixing hole (731) and fixed to the push plate (73). The lower end of the right push rod (72) is inserted into the right push rod fixing hole (732) at the position corresponding to the right push rod fixing hole (732) and fixed to the push plate (73). The push plate (73) is fixed. The upper ends of the left push rod (71) and the right push rod (72) pass through the locking plate flange (41) and the push rod sliding guide plate (74) from bottom to top, respectively, and correspond to the downward-facing side of the left pivot locking arm push lug (53) and the right pivot locking arm push lug (63). The push rod sliding guide plate (74) is set in a horizontal state and the rear side of the push rod sliding guide plate (74) is fixed to the front side of the locking plate (4). The upper end connecting piece (75) of the push rod is positioned above the push rod sliding guide plate (74). Fixedly connected between the upper ends of the left push rod (71) and the right push rod (72), the upper end of the left return spring (76) is hooked to the middle of the left pivot locking arm (5) at the position corresponding to the left side of the left pivot locking arm push lug (53), while the lower end of the left return spring (76) is hooked to the locking plate fold (41). The upper end of the right return spring (77) is hooked to the middle of the right pivot locking arm (6) at the position corresponding to the right side of the right pivot locking arm push lug (63), while the lower end of the right return spring (77) is hooked to the locking plate fold (41).During the movement of the trolley body (21) along the annular guide rail (1), the front fold (211) of the trolley body drives the locking plate (4), the left pivot locking arm locking release mechanism (10), and the right pivot locking arm locking release mechanism (20) to move accordingly. At the same time, the locking plate (4) drives the left pivot locking arm (5), the right pivot locking arm (6), and the locking arm free end push reset mechanism (7) to move accordingly. When the push plate (73) moves to the position above the push plate action cylinder (8) and the turnover basket support frame trolley position signal collector (9), the turnover basket support frame trolley position signal collector (9) collects the position signal of the push plate (73) and transmits the position signal. Feedback is sent to the electrical controller, which sends a working signal to the push plate cylinder (8), causing the push plate cylinder (8) to push the push plate (73). The push plate (73) drives the left push rod (71) and the right push rod (72) to simultaneously pass through the left pivot locking arm push lug (53) and the right pivot locking arm push lug (63), respectively, causing the free ends of the locking arms of the left and right pivot locking arms (5, 6) to rise upwards. At the same time, the locking release mechanisms (10, 20) of the left and right pivot locking arms release the locking of the left and right pivot locking arms (5, 6). The upper part of the locking plate (4) and the rear end of the turnover basket support frame (3) tilt downwards, and the turnover basket (30) placed on the turnover basket support frame (3) slides down.

8. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 7, characterized in that: The left spring pin holder fixing seat (101) is fixed to the front middle of the left spring pin holder fixing seat plate (1011) by a left spring pin holder fixing screw, and the upper and lower ends of the rear side of the left spring pin holder fixing seat plate (1011) are fixed to the front folded edge (211) of the car body; the right spring pin holder fixing seat (201) is fixed to the front middle of the right spring pin holder fixing seat plate (2011) by a right spring pin holder fixing screw, and the upper and lower ends of the rear side of the right spring pin holder fixing seat plate (2011) are fixed to the front folded edge (211) of the car body.

9. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 7, characterized in that: A locking plate flange (41) has a left push rod clearance hole (411) at a position corresponding to the left push rod (71), and a locking plate flange right push rod clearance hole (412) at a position corresponding to the right push rod (72); a push rod sliding guide plate (74) has a left push rod clearance hole at a position corresponding to the left push rod (71), and a push rod sliding guide plate right push rod clearance hole at a position corresponding to the right push rod (72). The upper end of the left push rod (71) passes through the left push rod clearance hole (411) of the locking plate folded edge and the left push rod clearance hole of the push rod sliding guide plate from bottom to top, and then corresponds to the downward-facing side of the left pivot locking arm push lug (53). The upper end of the right push rod (72) passes through the right push rod clearance hole (412) of the locking plate folded edge and the right push rod clearance hole of the push rod sliding guide plate from bottom to top, and then corresponds to the downward-facing side of the right pivot locking arm push lug (63). A left return spring upper end hooking hole (54) is provided in the middle of the arm (5) and on the left side of the left pivot locking arm push lug (53). A left return spring lower end hooking hole (413) is provided on the locking plate flange (41) and at the position corresponding to the lower end of the left return spring (76). The upper end of the left return spring (76) is hooked in the left return spring upper end hooking hole (54), and the lower end of the left return spring (76) is hooked in the left return spring lower end hooking hole (413). A right return spring upper end hooking hole (64) is provided in the middle of the pivot locking arm (6) and on the right side of the right pivot locking arm push lug (63). A right return spring lower end hooking hole (414) is provided on the locking plate fold (41) and at the position corresponding to the lower end of the right return spring (77). The upper end of the right return spring (77) is hooked in the right return spring upper end hooking hole (64), and the lower end of the right return spring (77) is hooked in the right return spring lower end hooking hole (414).

10. The automatic unloading device for the turnover basket of the circulating conveyor production line according to claim 7, characterized in that: A U-shaped bracket (1111) is fixed on the column support arm (111) and at the front end of the column support arm (111). The push plate cylinder (8) is longitudinally fixed at the left end of the U-shaped bracket (1111) with its push plate cylinder column (81) facing upward. The turnover basket carrier trolley position signal collector (9) is fixed at the right end of the U-shaped bracket (1111), and the signal acquisition sensor head (91) of the turnover basket carrier trolley position signal collector (9) faces upward. The push plate cylinder (8) is a cylinder, and the turnover basket carrier trolley position signal collector (9) is a position sensor.

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