Mold storage handling system and storage handling method

Abstract

The application discloses a mold storage and carrying system and a storage and carrying method, and relates to the technical field of mold storage and carrying, which comprises a mold warehouse, a first mold rack and a second mold rack oppositely arranged, a first track arranged between the first mold rack and the second mold rack, a lifting stacker arranged on the first track, a mold overturning mechanism arranged at the tail end of the first track and matched with the lifting stacker, a plurality of injection molding machines and an AGV mold changing trolley, the plurality of injection molding machines are arranged in parallel and at intervals, and a signal track is arranged between each injection molding machine and the mold overturning mechanism.

Description

Technical Field

[0001] This invention relates to the field of mold handling, and particularly to mold storage and handling systems and methods. Background Technology

[0002] During operation, injection molding machines work by injecting plastic particles into a mold, which then cools and solidifies to form the final product. Therefore, various mold cavities are required. The current mold loading process is as follows: the mold is placed in a compartment of the mold library. When a mold is needed, a stacker crane removes the corresponding mold and moves it to the exit of the mold library. Then, a worker operates a trolley to retrieve the mold and deliver it to the corresponding injection molding machine for loading. However, this method still requires human intervention and has many inconveniences.

[0003] For example, Chinese Patent 202210133073.2 discloses an automated mold storage system based on a transfer stacker crane, which includes shelves, stacker crane, rails, and inbound / outbound conveyor lines. This structure can only remove molds from the mold storage system and cannot perform subsequent operations, so there are still many inconveniences. Summary of the Invention

[0004] The technical problem solved by the present invention is to provide a mold storage and handling system and a mold handling method that can automatically load molds from the mold library into the injection molding machine.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a mold storage and handling system, including a mold library, the mold library including a first mold rack and a second mold rack arranged opposite to each other, a first track arranged between the first mold rack and the second mold rack, a lifting stacker arranged on the first track, a mold flipping mechanism cooperating with the lifting stacker arranged at the end of the first track, and also including multiple injection molding machines and AGV mold changing trolleys, the multiple injection molding machines being placed in parallel and spaced apart, and a signal track providing path information to the AGV mold changing trolleys is arranged between each injection molding machine in the mold flipping mechanism.

[0006] Furthermore, the first mold rack includes a frame body, on which multiple compartments for storing molds are provided. Each compartment includes a bottom frame, on which a base plate for supporting the mold is provided. Multiple first guide rollers for guiding the mold are provided on the base plate, and a blocking block for blocking the mold is provided at the tail end of the base plate.

[0007] Furthermore, the lifting stacker includes a mounting frame, on which a lifting frame is mounted. A first roller and a first drive motor for driving the first roller to rotate are mounted on one side of the mounting frame. A rotating wheel is mounted on the top of the mounting frame. The machine also includes a chain, with one end of the chain fixed to the lifting frame and the other end of the chain passing around the rotating wheel and fixedly connected to the first roller.

[0008] The mounting frame is provided with a second roller located in the first track at its bottom, and also includes a second drive motor for driving the second roller to rotate.

[0009] The lifting frame is equipped with a roller frame assembly, and the lifting frame is also equipped with a horizontal drive mechanism for driving the roller frame assembly to move horizontally. The roller frame assembly includes a roller frame and a roller frame drive mechanism for driving the roller frame to move up and down.

[0010] Furthermore, the mold flipping mechanism includes a flipping mounting frame, which is vertically connected to a first placement platform and a second placement platform. A fourth roller group is provided on both the first and second placement platforms. A first limiter is also provided on the second placement platform. The mechanism also includes a first limiter driving mechanism that drives the limiter to extend into the mold, and a rotation driving mechanism for driving the first and second placement platforms to rotate 90 degrees.

[0011] Furthermore, the AGV mold-changing trolley includes a frame, on which a first roller device and a second roller device are provided. A mold push-pull device is provided on one side of both the first roller device and the second roller device. The frame is provided with a first track segment, a second track segment and a third track segment. The first track segment is fixed on the frame. The bottom of the second track segment is provided with a track lifting mechanism for driving the second track segment to move up and down. The bottom of the third track segment is provided with a third track segment drive mechanism for driving the third track segment to move horizontally. When the third track segment drive mechanism drives the third track segment to move forward and the track lifting mechanism drives the second track segment to rise, the first track segment, the second track segment and the third track segment are connected and on the same horizontal plane.

[0012] It also includes a push-pull device installed in the first track section, and a push-pull device drive mechanism for driving the push-pull device to move along the first track section, the second track section and the third track section. The bottom of the frame is equipped with an RFID sensor and a magnetic navigation sensor.

[0013] Furthermore, a guide wheel mounting bracket is provided on one side of the vehicle frame, and a guide wheel is provided on the guide wheel mounting bracket. A guide rail is provided on one side of the signal rail, and the guide wheel is located in the guide rail. A second limiter is also provided on one side of the first roller device and the second roller device, and a second limiter drive mechanism is also included to drive the second limiter to extend into the mold.

[0014] This invention also discloses a mold storage and handling method, including the aforementioned mold storage and handling system. The steps are as follows: a lifting stacker moves along a first track to a designated position on a first mold rack or a second mold rack. A roller frame in the lifting stacker extends under the mold of the corresponding compartment under the action of a horizontal drive mechanism. The roller frame rises to lift the mold, and then returns, causing the mold to move into the lifting stacker. Next, the lifting stacker moves to a mold flipping mechanism. The lifting frame descends under the action of a first drive motor, causing the roller frame assembly and the plane of the flipping mechanism to be on the same horizontal plane. Then, the roller frame extends onto the flipping mechanism under the action of the horizontal drive mechanism. Next, the roller frame descends, causing the mold to fall onto the first placement platform of the mold flipping mechanism. The roller retracts, and a first limiter on the second placement platform extends and engages with the mold. The first and second placement platforms rotate 90 degrees, causing the mold to fall onto the second placement platform. Then, a third track segment drive mechanism drives the third track segment forward, and a track lifting mechanism drives the second track segment upward. At this time, the first, second, and third track segments are connected and on the same horizontal plane. When the third track segment extends into the mold flipping mechanism, the push-pull device drive mechanism drives the push-pull device forward to hook one end of the mold and pull it back onto the first roller device. The second and third track segments reset. The AGV mold changing trolley moves along the signal track to the corresponding injection molding machine position. The third track segment drive mechanism at the second roller device drives the third track segment forward, and the track lifting mechanism drives the second track segment upward. At this time, the first, second, and third track segments are connected and on the same horizontal plane. The push-pull mechanism pulls the original mold back to the second roller device, and the second and third track segments at the second roller device reset. Then, the AGV trolley moves a short distance to align the first roller device with the injection molding machine. At this time, the third track segment drive mechanism at the first roller device drives the third track segment forward, and the track lifting mechanism drives the second track segment upward. At this time, the first, second, and third track segments are connected and on the same horizontal plane. The push-pull mechanism pushes the new mold into the injection molding machine, and the second and third track segments at the second roller device reset, completing the automatic mold loading operation.

[0015] The beneficial effects of this invention are: by setting the positions of the mold library, the lifting stacker, the mold flipping mechanism, the AGV mold changing trolley and the injection molding machine, this mechanism can realize the fully automatic transportation of molds from the mold library to the injection molding machine. The entire process does not require human intervention, which greatly improves its automation level. At the same time, due to the setting of its mold flipping mechanism, the position of the mold can be adjusted so that the mold can be placed into the injection molding machine in an accurate position. Attached Figure Description

[0016] Figure 1This is a schematic diagram of the mold storage and handling system according to an embodiment of this application.

[0017] Figure 2 This is a schematic diagram of the mold rack of the mold storage and handling system according to an embodiment of this application.

[0018] Figure 3 This is a schematic diagram of the lifting stacker of the mold storage and handling system according to an embodiment of this application.

[0019] Figure 4 This is a schematic diagram of the flipping mechanism of the mold storage and handling system according to an embodiment of this application.

[0020] Figure 5 This is a schematic diagram of the structure of the AGV mold changing trolley in the mold storage and handling system of this application embodiment.

[0021] Figure 6 This is a schematic diagram of the structure of an AGV mold-changing trolley in a mold storage and handling system according to another embodiment of this application.

[0022] The components in the diagram are labeled as follows: First mold frame 10101, Second mold frame 102, Frame body 103, Bottom frame 104, First guide roller 105, Blocking block 106, First track 2, Lifting stacker 3, Lifting frame 301, First drive motor 302, Rotating wheel 303, Chain 304, Second drive motor 305, Roller frame assembly 306, Tilting mechanism 4, Tilting mounting frame 401, First placement platform 402, Second placement platform 403, Fourth roller group 404, First limiter 405, AGV mold changing trolley 5, Frame 51, First roller device 52, Second roller device 53, Mold push-pull device 54, Second limiter 55, Injection molding machine 6, Signal track 7, Tilting device 8, Third roller device 9. Detailed Implementation

[0023] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly attached to the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] like Figure 1 As shown, embodiments of this application disclose a mold storage and handling system, including a mold library. The mold library includes a first mold rack 101 and a second mold rack 102 arranged opposite to each other. A first track 2 is provided between the first mold rack 101 and the second mold rack 102. A lifting stacker 3 is provided on the first track 2. A mold flipping mechanism 4 cooperating with the lifting stacker 3 is provided at the end of the first track 2. The system also includes multiple injection molding machines 6 and AGV mold changing trolleys 5. The multiple injection molding machines 6 are placed in parallel and spaced apart. A signal track 7 is provided between each injection molding machine 6 in the mold flipping mechanism 4 to provide path information to the AGV mold changing trolley 5.

[0027] Specifically, during operation, the lifting stacker 3 moves to the target position of the first mold frame 101 or the second mold frame 102, and the lifting stacker 3 takes out the corresponding mold. Then, the lifting stacker 3 moves along the first track 2 to the mold flipping mechanism 4 and places the taken-out mold on the mold flipping mechanism 4. The mold flipping mechanism 4 flips 90 degrees, so that the mold on the mold flipping mechanism 4 changes from a horizontal state to a vertical state. Then, the AGV mold changing trolley 5 takes away the mold on the mold flipping mechanism 4 and carries the mold along the signal track 7 to the corresponding injection molding machine 6, takes out the original mold in the injection molding machine 6, and pushes the new mold into the injection molding machine 6.

[0028] This device, through the positioning of the mold library, lifting stacker 3, mold flipping mechanism 4, AGV mold changing trolley 5, and injection molding machine 6, can realize the fully automatic transportation of molds from the mold library to the injection molding machine 6. The entire process does not require human intervention, greatly improving its automation level. At the same time, due to the setting of its mold flipping mechanism 4, the position of the mold can be adjusted, so that the mold can be placed into the injection molding machine 6 in an accurate position.

[0029] In this embodiment, the first mold rack 101 includes a frame 103, on which a plurality of compartments for storing molds are provided. Each compartment includes a bottom frame 104, on which a base plate for supporting the mold is provided. The base plate is provided with a plurality of first guide rollers 105 for guiding the mold, and a blocking block 106 for blocking the mold is provided at the tail end of the base plate.

[0030] Specifically, the mold is placed in a compartment within the first mold holder 101 or the second mold holder 102, and is blocked by the blocking block 106.

[0031] In the above structure, the first guide roller can easily push the mold into the cell and guide the pushing process, so that the mold moves accurately into the cell.

[0032] In this embodiment, the lifting stacker 3 includes a mounting frame, on which a lifting frame 301 is mounted. A first roller and a first drive motor for rotating the first roller are mounted on one side of the mounting frame. A rotating wheel 303 is mounted at the top of the mounting frame. A chain 304 is also included, with one end fixed to the lifting frame 301 and the other end passing around the rotating wheel 303 and fixedly connected to the first roller. A second roller located within a first track 2 is mounted at the bottom of the mounting frame, and a second drive motor 305 for rotating the second roller is also included. A roller frame assembly 306 is mounted on the lifting frame 301, and a horizontal drive mechanism for driving the roller frame assembly 306 to move horizontally is also provided on the lifting frame 301. The roller frame assembly 306 includes a roller frame and a roller frame drive mechanism for driving the roller frame to move vertically.

[0033] When the lifting stacker 3 needs to retrieve a mold from the mold library, the second drive motor 305 drives the second roller to move along the first track 2 to the target position. Then, the first drive motor drives the first roller to rotate, causing the chain 304 to wrap around the first roller. Subsequently, the chain 304 drives the lifting frame 301 to move to the designated position. Under the action of the horizontal drive mechanism, the roller frame extends to the bottom of the mold in the corresponding compartment. The roller frame rises to lift the mold. Under the action of the horizontal drive mechanism, the roller frame returns, causing the mold to move into the lifting stacker 3. Then, the lifting stacker 3 moves to the mold flipping mechanism 4. The lifting frame 301 descends under the action of the first drive motor, so that the roller frame assembly 306 and the plane of the flipping mechanism 4 are on the same horizontal plane. Then, under the action of the horizontal drive mechanism, the roller frame extends onto the flipping mechanism 4. Then, the roller frame descends, causing the mold to fall onto the first placement platform 402 of the mold flipping mechanism 4. The roller frame retracts, completing the entire handling operation.

[0034] The above structure can automatically transport molds from the mold library to the mold flipping mechanism 4, thereby improving its transport efficiency.

[0035] In this embodiment, the mold flipping mechanism 4 includes a flipping mounting frame 401, which is vertically connected to a first placement platform 402 and a second placement platform 403. A fourth roller group 404 is provided on both the first placement platform 402 and the second placement platform 403. A first limiter 405 is also provided on the second placement platform 403. The mechanism also includes a first limiter 405 driving mechanism that drives the limiter to extend into the mold, and a rotation driving mechanism for driving the first placement platform 402 and the second placement platform 403 to rotate 90 degrees.

[0036] Specifically, the aforementioned rotary drive mechanism is an existing structure, which may include an arc-shaped rack. The mold flipping mechanism 4 is also equipped with a motor, and the motor is equipped with a drive gear. The gear meshes with the rack, and through the rotation of the gear, the arc-shaped rack moves, thereby realizing the rotation of the first placement platform 402 and the second placement platform 403.

[0037] Specifically, when the mold is placed on the first placement platform 402, the first limiter 405 on the second placement platform 403 extends and engages with the mold. The first placement platform 402 and the second placement platform 403 rotate 90 degrees, so that the mold falls on the second placement platform 403. When the AGV trolley takes the mold, the first limiter 405 retracts.

[0038] The aforementioned mold flipping mechanism 4 ensures that the mold will not shake during the 90-degree flipping process. At the same time, the mold position can be adjusted by flipping the mold, so that the mold can be accurately placed into the injection molding machine 6.

[0039] In this embodiment, the AGV mold changing trolley 5 includes a frame 51. A first roller device 52 and a second roller device 53 are provided on the frame 103. A mold push-pull device 54 is provided on one side of the first roller device 52 and the second roller device 53. A first track segment, a second track segment and a third track segment are provided on the frame 51. The first track segment is fixed on the frame 51. A track lifting mechanism for driving the second track segment to move up and down is provided at the bottom of the second track segment. A third track segment drive mechanism for driving the third track segment to move horizontally is provided at the bottom of the third track segment. When the third track segment drive mechanism drives the third track segment to move forward and the track lifting mechanism drives the second track segment to rise, the first track segment 2, the second track segment and the third track segment are connected and on the same horizontal plane.

[0040] It also includes a push-pull device disposed in the first track section, and a push-pull device drive mechanism for driving the push-pull device to move along the first track section 2, the second track section and the third track section.

[0041] Specifically, the aforementioned track lifting mechanism can be a cylinder, hydraulic cylinder, etc.; the third track segment drive mechanism can be a linear module, cylinder, etc.

[0042] Specifically, at this time, the AGV trolley is located at the mold flipping mechanism 4. The third track segment drive mechanism drives the third track segment forward, and the track lifting mechanism drives the second track segment upward. At this time, the first track segment 2, the second track segment, and the third track segment are connected and on the same horizontal plane. Simultaneously, the third track segment extends into the mold flipping mechanism 4. At this time, the push-pull device drive mechanism drives the push-pull device forward to hook one end of the mold and pull it back onto the first roller device 52. The second track segment and the third track segment are reset. The AGV mold changing trolley 5 moves along the path of the signal track 7 to the corresponding injection molding machine 6 position. The third track segment drive mechanism at the second roller device 53 drives the third track segment forward, and the track lifting mechanism drives the second track segment upward. At this time, the first track segment 2, the second track segment, and the third track segment are connected and on the same horizontal plane. The first roller device 52 is connected to the second roller device 53 and is on the same horizontal plane. The push-pull mechanism pulls the original mold back to the second roller device 53. The second and third roller devices 53 are reset. Then, the AGV moves a short distance so that the first roller device 52 is aligned with the injection molding machine 6. At this time, the third roller device 52 drives the third roller device 52 to move forward and the track lifting mechanism drives the second roller device 52 to rise. At this time, the first roller device 2, the second roller device 52 and the third roller device 53 are connected and on the same horizontal plane. The push-pull mechanism pushes the new mold into the injection molding machine 6. The second roller device 53 and the third roller device 53 are reset, completing the automatic mold loading operation. The bottom of the frame 51 is equipped with an RFID sensor and a magnetic navigation sensor.

[0043] The three-section track in the above structure can extend the track so that it can be inserted into the mold flipping mechanism 4 or the injection molding machine 6, so that the mold can be smoothly taken out or put in. At the same time, the RFID sensor and magnetic navigation sensor at the bottom of the frame 51 can be connected to the signal track 7, so that it can realize automatic navigation and positioning.

[0044] In this embodiment, a guide wheel mounting bracket is also provided on one side of the frame 51, and a guide wheel is provided on the guide wheel mounting bracket. A guide rail is provided on one side of the signal rail 7, and the guide wheel is located in the guide rail. A second limiter 55 is also provided on one side of the first roller device 52 and the second roller device 53. The embodiment also includes a second limiter 55 driving mechanism that drives the second limiter 55 to extend into the mold.

[0045] Specifically, during the movement of the AGV, the guide wheel moves within the guide track. At the same time, when the mold is on the AGV, the second limiter 55 extends into the mold to limit its movement.

[0046] In the above structure, the guide wheels and guide rails prevent the AGV from deviating from the course during movement. At the same time, the second limiter 55 can limit and fix the mold, preventing the AGV from shaking during movement, thus ensuring the stability of its movement.

[0047] This invention also discloses a mold storage and handling method, including the mold storage and handling system described above. The steps are as follows: a lifting stacker 3 moves along the first track 2 to a designated position on the first mold frame 101 or the second mold frame 102. Under the action of a horizontal drive mechanism, the roller frame in the lifting stacker 3 extends to the bottom of the mold in the corresponding compartment. The roller frame rises to lift the mold, and then returns, causing the mold to move into the lifting stacker 3. Next, the lifting stacker 3 moves to the mold flipping mechanism 4. The lifting frame 301 descends under the action of a first drive motor, causing the roller frame assembly 306 to be aligned with the plane of the flipping mechanism 4. On the same horizontal plane, the roller frame extends to the flipping mechanism 4 under the action of the horizontal drive mechanism. Then, the roller frame descends, causing the mold to fall onto the first placement platform 402 of the mold flipping mechanism 4. The roller frame retracts, and the first limiter 405 on the second placement platform 403 extends and engages with the mold. The first placement platform 402 and the second placement platform 403 rotate 90 degrees, causing the mold to fall onto the second placement platform 403. Then, the third track segment drive mechanism drives the third track segment forward, and the track lifting mechanism drives the second track segment upward. At this time, the first track segment 2, the second track segment, and the third track segment are connected. And on the same horizontal plane, the third track segment extends into the mold flipping mechanism 4. At this time, the push-pull device drive mechanism drives the push-pull device forward to hook one end of the mold and pull it back onto the first roller device 52. The second and third track segments are reset. The AGV mold changing trolley 5 moves along the path of the signal track 7 to the corresponding injection molding machine 6 position. The third track segment drive mechanism at the second roller device 53 drives the third track segment forward, and the track lifting mechanism drives the second track segment to rise. At this time, the first track segment 2, the second track segment and the third track segment are connected and on the same horizontal plane. The push-pull mechanism will move the original mold... The mold is pulled back to the second roller device 53, and the second and third track sections at the second roller device 53 are reset. Then, the AGV trolley moves a short distance so that the first roller device 52 is aligned with the injection molding machine 6. At this time, the drive mechanism of the third track section at the first roller device 52 drives the third track section to move forward, and the track lifting mechanism drives the second track section to rise. At this time, the first track section 2, the second track section and the third track section are connected and on the same horizontal plane. The push-pull mechanism pushes the new mold into the injection molding machine 6, and the second and third track sections at the second roller device 53 are reset, completing the automatic mold loading operation.

[0048] The above-mentioned handling method can realize the fully automatic handling of molds from the mold library to the injection molding machine 6. The entire process does not require human intervention, which greatly improves its automation level.

[0049] In addition, this application also has the following second embodiment: including a mold library, the mold library including a first mold rack 101 and a second mold rack 102 arranged opposite to each other, a first track segment 2 is provided between the first mold rack 101 and the second mold rack 102, a lifting stacker 3 is provided on the first track segment 2, and also includes a plurality of injection molding machines 6 and an AGV mold changing trolley 5, the plurality of injection molding machines 6 are placed in parallel and spaced apart, and a signal track 7 is provided between the tail end of the first track segment 2 and each injection molding machine 6 to provide path information to the AGV mold changing trolley 5.

[0050] Specifically, the mold storage, lifting stacker and the previous embodiment have the same structure and principle.

[0051] The AGV mold changing trolley includes a first roller device 52, a second roller device 53, a flipping device 8 located on one side of the first roller device, and a third roller device 9 located on one side of the second roller device. The flipping device 8 and the third roller device 9 are arranged adjacent to each other. The third roller device 9 is provided with a first push-pull mechanism for pulling the mold from the flipping device 8 to the third roller device 9, and a second push-pull mechanism for pushing the mold from the third roller device 9 to the second roller device 53.

[0052] The flipping device 8 has the same structure as the mold flipping mechanism 4 in the above embodiment. The difference is that the rollers on the first and second placement platforms in the flipping device in this embodiment are universal wheels, and the first and second placement platforms are equipped with liftable guide plates on all four sides to achieve guidance in two directions.

[0053] The specific working principle is as follows: After the lifting stacker picks up the mold, it sends the mold to the first placement platform on the flipping device of the AGV mold changing trolley. The first limiter on the first placement platform extends and locks the mold. The flipping device flips the mold, and the mold falls onto the second placement platform. Then, the first push-pull mechanism pulls the mold onto the third roller device, and the second push-pull mechanism pulls the mold onto the second roller device. The AGV trolley moves along the signal track 7 to the designated injection molding machine. The push-pull mechanism at the first roller device pulls the original mold out of the injection molding machine, and the push-pull mechanism on the second roller device sends the mold into the injection molding machine. Then, when the AGV trolley needs to send the mold back to the mold storage, the AGV trolley moves along the signal track to the lifting stacker. The push-pull mechanism at the first roller device sends the original mold to the flipping device, which flips the mold. The flipped mold is then taken away by the lifting stacker.

[0054] The above structure, through the special design of the AGV, enables the AGV to have both transportation and flipping functions, thereby improving the efficiency of the system. It allows the mold to be flipped during movement, thus saving on mold replacement efficiency.

[0055] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of the present invention. It should be understood that the above descriptions are merely specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A mold storage handling system, characterized by: The utility model relates to a mould bank, the mould bank includes first mould frame (101) and second mould frame (102) of opposite arrangement, be provided with first track (2) between first mould frame (101) and second mould frame (102), be provided with lifting stacker (3) on first track (2), the tail end of first track (2) is provided with the mould turnover mechanism (4) with the cooperation of lifting stacker (3), still include a plurality of injection molding machine (6) and AGV mould changing dolly (5), a plurality of injection molding machine (6) are placed in parallel interval, the mould turnover mechanism (4) is provided with the signal track (7) of the path information that provides AGV mould changing dolly (5) between each injection molding machine (6); The first mould frame (101) includes a frame body (103), a plurality of cells for storing molds are provided on the frame body (103), each cell includes a bottom layer frame (104), a bottom plate for supporting the mold is provided on the bottom layer frame (104), a plurality of first guide rollers (105) for guiding the mold are provided on the bottom plate, and a blocking block (106) for blocking the mold is provided at the tail end of the bottom plate; The lifting stacker (3) includes a mounting frame, a lifting frame (301) is provided on the mounting frame, a first roller and a first drive motor (302) for driving the first roller to rotate are provided on one side of the mounting frame, a rotating wheel (303) is provided at the top end of the mounting frame, and a chain (304) is further included, one end of the chain (304) is fixed on the lifting frame (301), and the other end of the chain (304) is fixedly connected with the first roller by passing around the rotating wheel (303); The mounting frame is provided with a second roller located in the first track (2) at the bottom, and a second drive motor (305) for driving the second roller to rotate is further included; A roller frame assembly (306) is provided on the lifting frame (301), and a horizontal drive mechanism for driving the roller frame assembly (306) to move horizontally is further provided on the lifting frame (301), the roller frame assembly (306) includes a roller frame and a roller frame drive mechanism for driving the roller frame to move up and down; The mould turnover mechanism (4) includes a turnover mounting frame (401), the turnover mounting frame (401) is vertically connected with a first placement platform (402) and a second placement platform (403), fourth roller groups (404) are provided on the first placement platform (402) and the second placement platform (403), a first limiter (405) is further provided on the second placement platform (403), a first limiter (405) drive mechanism for driving the limiter to extend into the mold is further included, and a rotation drive mechanism for driving the first placement platform (402) and the second placement platform (403) to rotate by 90 degrees is further included; The AGV mold changing trolley (5) comprises a frame (51), a first roller device (52) and a second roller device (53) are arranged on the frame (51), a mold pushing and pulling device (54) is arranged on one side of the first roller device (52) and the second roller device (53), a first track section, a second track section and a third track section are arranged on the frame (51), the first track section is fixed on the frame (51), the second track section is provided with a track lifting mechanism at the bottom for driving the second track section to lift, the third track section is provided with a third track section driving mechanism at the bottom for driving the third track section to move horizontally, when the third track section driving mechanism drives the third track section to move forward and the track lifting mechanism drives the second track section to lift, the first track section, the second track section and the third track section are connected and located on the same horizontal plane; Further comprising a pushing and pulling device arranged in the first track section, further comprising a pushing and pulling device driving mechanism for driving the pushing and pulling device to move along the first track section, the second track section and the third track section; the frame (51) is provided with an RFID sensor and a magnetic navigation sensor at the bottom; a guide wheel mounting frame is further arranged on one side of the frame (51), a guide wheel is arranged on the guide wheel mounting frame, a guide rail is arranged on one side of the signal track (7), the guide wheel is located in the guide rail, a second limiter (55) is further arranged on one side of the first roller device (52) and the second roller device (53), and a second limiter (55) driving mechanism for driving the second limiter (55) to extend into the mold is further included.

2. The mold storage and carrying method comprises the mold storage and carrying system in claim 1, and the steps are as follows: the lifting stacker (3) moves to the specified position of the first mold rack (101) or the second mold rack (102) along the first track (2), the roller frame in the lifting stacker (3) extends to the position below the mold in the corresponding grid under the action of the horizontal driving mechanism, the roller frame rises to hold the mold, the roller frame returns, and the mold moves into the lifting stacker (3), then the lifting stacker (3) moves to the mold overturning mechanism (4), the lifting frame (301) descends under the action of the first driving motor (302), so that the roller frame assembly (306) and the plane of the mold overturning mechanism (4) are located at the same horizontal plane, then the roller frame extends to the mold overturning mechanism (4) under the action of the horizontal driving mechanism, then the roller frame descends, so that the mold falls on the first placing platform (402) of the mold overturning mechanism (4), the first stopper (405) on the second placing platform (403) extends to be clamped into the mold, the first placing platform (402) and the second placing platform (403) rotate by 90 degrees, so that the mold falls on the second placing platform (403), then the third track section driving mechanism drives the third track section to move forward, and the track lifting mechanism drives the second track section to move upward, at this time, the first track section, the second track section and the third track section are connected and located at the same horizontal plane, meanwhile, the third track section extends into the mold overturning mechanism (4), at this time, the push-pull device driving mechanism drives the push-pull device to move forward to hook one end of the mold and pull it back to the first roller device (52), the second track section and the third track section reset, the AGV mold changing trolley (5) moves along the path of the signal track (7) to the position of the corresponding injection molding machine (6), the third track section driving mechanism at the second roller device (53) drives the third track section to move forward, and the track lifting mechanism drives the second track section to move upward, at this time, the first track section, the second track section and the third track section are connected and located at the same horizontal plane, the push-pull mechanism pulls the original mold back to the second roller device (53), the second track section and the third track section at the second roller device (53) reset, then the AGV trolley moves a small distance, so that the first roller device (52) is aligned with the injection molding machine (6), at this time, the third track section driving mechanism at the first roller device (52) drives the third track section to move forward, and the track lifting mechanism drives the second track section to move upward, at this time, the first track section, the second track section and the third track section are connected and located at the same horizontal plane, the push-pull mechanism pushes the new mold into the injection molding machine (6), the second track section and the third track section at the second roller device (53) reset, and the automatic mold loading operation is completed.

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