An automated injection molding machine that effectively reduces the emission of organic waste gas

Abstract

The present invention discloses an automated injection molding machine that effectively reduces the emission of organic waste gas, and relates to the technical field of injection molding machines. In the present invention, a first pickup cylinder and a second pickup cylinder are both equipped with a pickup sealed disk on the peripheral side of the output shaft, the first pickup port is correspondingly arranged below the first pickup cylinder, and the second pickup port is correspondingly arranged below the second pickup cylinder, the first transposition airway is used to push the closed guide mechanism to rotate, so that the closed guide channel rotates from the first pickup port to the second pickup port, the second transposition airway is used to push the closed guide mechanism to reverse and reset, the first opening and closing airway is used to push the injection molding sealed disk to move to release the blockage of the first pickup port, and the second opening and closing airway is used to push the injection molding sealed disk to move to release the blockage of the second pickup port. The present invention can realize non-open pickup of injection molded products at different workstations through the coordinated use of the first pickup cylinder, the second pickup cylinder, the pickup sealed disk and the closed control system.

Description

Technical Field

[0001] The present invention belongs to the technical field of injection molding machines, and particularly relates to an automated injection molding machine that effectively reduces the external dispersion of organic waste gas. Background Art

[0002] An injection molding machine is the main molding equipment for making various shaped plastic products from thermoplastic or thermosetting plastics using plastic molding dies. Generally, two molds are arranged inside an injection molding box of the injection molding machine, and two corresponding part-taking workstations are arranged above the molds. The injection process of the injection molding machine generally includes mold clamping and locking, injecting into the mold, cooling and forming, mold opening, and taking out the product. After the injection product is cooled, the injection product is taken out of the injection box by an automated robotic arm.

[0003] In the prior art, the injection molding process of the injection molding machine mainly occurs in the injection molding box. In order to facilitate the automated part-taking of the robotic arm, the top of the injection molding box is usually set as an open structure, which easily causes organic waste gas to directly escape from the top of the injection molding box during the injection production process, thereby polluting the internal environment of the injection workshop. In order to reduce the environmental pollution of the injection workshop by the injection organic waste gas, we provide an automated injection molding machine that effectively reduces the external dispersion of organic waste gas to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to provide an automated injection molding machine that effectively reduces the external dispersion of organic waste gas. Through the specific structural design of the injection molding machine body, part-taking sealing disc, air control mechanism, sealing guiding mechanism, and sealing components, the problem in the prior art that in order to facilitate the automated part-taking of the robotic arm, the top of the injection molding box is usually set as an open structure, which easily causes organic waste gas to directly escape from the top of the injection molding box during the injection production process, thereby polluting the internal environment of the injection workshop is solved.

[0005] To solve the above technical problems, the present invention is realized through the following technical solutions: The present invention is an automated injection molding machine that effectively reduces the external dispersion of organic waste gas, including an injection molding machine body; wherein, the injection molding machine body consists of an injection molding box, a control system, a first robotic arm, a second robotic arm, an injection conveying system, and a silo control system. The control system is arranged on one side of the injection molding box, the injection conveying system is arranged on the other side of the injection molding box, the silo control system is installed on the top of the injection conveying system, the first robotic arm is installed on the top of the injection molding box near one side of the injection conveying system, the second robotic arm is slidably installed on the top of the first robotic arm, a moving carrier is slidably installed on the second robotic arm, and a first part-taking cylinder and a second part-taking cylinder are both installed on the moving carrier; a first part-taking cylinder and a second part-taking cylinder are arranged above the injection molding box; sealing discs for part-taking are installed on the circumferential sides of the output shafts of the first part-taking cylinder and the second part-taking cylinder.

[0006] A closed control system is installed on the top of the injection molding box; wherein the closed control system includes an air control mechanism, the air control mechanism includes a first pickup port, a second pickup port, a first transposition air channel, a second transposition air channel, a first opening and closing air channel and a second opening and closing air channel, the first pickup port is correspondingly arranged below the first pickup cylinder, and the second pickup port is correspondingly arranged below the second pickup cylinder; a closed guide mechanism, the closed guide mechanism is rotatably installed on the top of the air control mechanism, the closed guide mechanism includes a closed guide channel, the first transposition air channel is used to push the closed guide mechanism to rotate so that the closed guide channel rotates from the first pickup port to the second pickup port, and the second transposition air channel is used to push the closed guide mechanism to reverse and reset; and a closed component, the closed component is slidably arranged inside the closed guide mechanism, the closed component includes an injection molding closed disk that can be elastically reset, the first opening and closing air channel is used to push the injection molding closed disk to move to release the blockage of the first pickup port, and the second opening and closing air channel is used to push the injection molding closed disk to move to release the blockage of the second pickup port.

[0007] In some embodiments, the gas control mechanism also includes a top sealing cover plate, an open robot arm pickup port is provided on the top of the injection molding box, and the top sealing cover plate is tightly fitted inside the robot arm pickup port. A transposition installation cavity is provided on the top of the top sealing cover plate, which is located in the middle of the first pickup station and the second pickup station. The first pickup port and the second pickup port are both opened inside the transposition installation cavity and connected to the inner cavity of the injection molding box. An exhaust gas exhaust pipe connected to the inner cavity of the injection molding box is installed on the top of the top sealing cover plate, and first slideways connected to the transposition installation cavity are provided on opposite sides of the top sealing cover plate.

[0008] In some embodiments, the closed guide mechanism also includes a top sealing turntable, which is rotatably installed inside the transposition installation cavity, and a mobile cavity, a first cavity and a second cavity are provided inside the top sealing turntable. The closed guide channel is fixedly installed on the top of the top sealing turntable, and a movable pickup port connected to the mobile cavity is provided at the bottom of the top sealing turntable. The movable pickup port is coaxially arranged with the closed guide channel, the first cavity and the second cavity are arranged on both sides of the mobile cavity and are connected to the mobile cavity, and a second slide channel connected to the first cavity is provided on the peripheral side of the top sealing turntable.

[0009] In some embodiments, the first air opening and closing channel is composed of a first air supply pipe, a first air guiding pipe, a first air pushing pipe, and a first cavity; wherein, the air inlet end of the first air guiding pipe is connected to the air outlet end of the first air supply pipe, the air outlet end of the first air guiding pipe is connected to the air inlet end of the first air pushing pipe, the air outlet end of the first air pushing pipe is connected to the top sealing cover plate, and the first air pushing pipe is communicated with the corresponding first slideway; a first air pushing rod is slidably arranged inside the first air pushing pipe, one end of the first air pushing rod extends into the corresponding first slideway, a limiting guide seat slidably arranged on the top of the control system is fixed to the other end of the first air pushing rod, the limiting guide seat and an ear seat on the first air pushing pipe are connected by a first elastic member, and an air pushing piston disc matched with the inside of the first air pushing pipe is fixed to the circumferential side of the first air pushing rod.

[0010] In some embodiments, the second air opening and closing channel is composed of a second air supply pipe, a second air guiding pipe, a second air pushing pipe, and a second cavity; wherein, the air inlet end of the second air guiding pipe is connected to the air outlet end of the second air supply pipe, the air outlet end of the second air guiding pipe is connected to the air inlet end of the second air pushing pipe, the air outlet end of the second air pushing pipe is connected to the top sealing cover plate, and the second air pushing pipe is communicated with the corresponding first slideway; a second air pushing rod is slidably arranged inside the second air pushing pipe, one end of the second air pushing rod extends into the corresponding first slideway, a moving frame is fixed to the other end of the second air pushing rod, a limiting guide rod slidably matched with the moving frame is installed on one side of the injection molding box, the moving frame and an ear seat on the second air pushing pipe are connected by a first elastic member, and an air pushing piston disc matched with the inside of the second air pushing pipe is fixed to the circumferential side of the second air pushing rod.

[0011] In some embodiments, a gear cavity located between the first workpiece taking opening and the second workpiece taking opening is formed inside the top sealing cover plate, a meshing transmission cavity communicated with the gear cavity is formed on one side of the gear cavity, a first diversion cavity and a second diversion cavity are respectively arranged at two ends of the meshing transmission cavity; a reversing gear located inside the gear cavity is connected to the bottom of the top sealing turntable through a rotating shaft, a reversing tooth seat meshed with the reversing gear is slidably arranged inside the meshing transmission cavity, and piston plates are fixed to both ends of the reversing tooth seat.

[0012] In some embodiments, the injection molding sealing disc is slidably matched inside the moving cavity, a force receiving moving part fixed to the injection molding sealing disc is slidably arranged inside the first cavity, a positioning part fixed to the injection molding sealing disc is slidably arranged inside the second cavity, and a second elastic member connected to the positioning part is arranged inside the second cavity.

[0013] In some embodiments, the first commutation air duct is composed of a first commutation air pipe, a first diversion cavity and an engagement transmission cavity. The first commutation air pipe is installed on the top sealing cover plate and is communicated with the first diversion cavity. Two electromagnetic valves are installed on the first commutation air pipe. Electromagnetic valves are installed on both the first air duct and the second air duct close to the position of the first air supply pipe.

[0014] In some embodiments, the second commutation air duct is composed of a second commutation air pipe, a second diversion cavity and an engagement transmission cavity. One end of the second commutation air pipe is connected to the first commutation air pipe. The two electromagnetic valves on the first commutation air pipe are respectively located on both sides of the second commutation air pipe. The other end of the second commutation air pipe penetrates through the top of the injection molding box from top to bottom and is connected to the bottom of the top sealing cover plate. The second commutation air pipe is communicated with the second diversion cavity. An electromagnetic valve is installed on the second commutation air pipe close to the first commutation air pipe. A vent pipe with a relief valve is connected to the second commutation air pipe. An air supply device is installed at the rear of the injection molding box. One air outlet of the air supply device is connected to the first air supply pipe. The other air outlet of the air supply device is connected to a second air supply pipe. An electromagnetic valve is installed on the second air supply pipe. An elastic airbag is arranged between the second air supply pipe and the first commutation air pipe.

[0015] The present invention has the following beneficial effects: 1. Through the coordinated use of the first picking cylinder, the second picking cylinder, the picking sealing disc and the sealing control system, the present invention can realize the non-open automatic picking of the injection molded products in the injection molding box, and can simultaneously meet the non-open picking of the injection molded products at different workstations, thereby effectively reducing the dispersion of organic waste gas generated during the injection molding process into the injection molding workshop and causing environmental pollution, and helping to realize the harmless production process of the entire injection molding machine.

[0016] In the present invention, when the picking part at the bottom of the output end of the first picking cylinder enters the closed guiding channel, and until the picking sealing disc on the first picking cylinder just fits inside the closed guiding channel, the injection molding sealing disc is driven to move away from the blocking of the movable picking opening through the first opening and closing air duct or the second opening and closing air duct. The first picking cylinder continues to control the picking part thereon to move downward into the injection molding box to suck the injection molded product. At this time, the picking sealing disc still fits in the closed guiding channel. When lifting the sucked injection molded product into the closed guiding channel, the picking sealing disc at this time still fits in the closed guiding channel. After controlling the air in the first opening and closing air duct or the second opening and closing air duct to be discharged, the picking sealing disc is reset. Then, the first picking cylinder is continuously controlled to move the sucked injection molded product upward to break away from the closed guiding channel until the picking sealing disc on the first picking cylinder returns to the initial position. When moving the sucked injection molded product to the required position through the combined action of the first robotic arm and the second robotic arm, the first picking cylinder is controlled to move the sucked injection molded product downward and release it onto the conveyor belt at this position. After the first picking cylinder retracts upward to complete the reset, the first robotic arm and the second robotic arm are used again to move the first picking cylinder to the initial position. According to the above working mode, the injection molding operation can be continuously carried out. Through this non-open injection molding method, the direct dispersion of injection molding organic waste gas into the workshop environment can be effectively reduced, and thus the environmental pollution of the injection molding workshop caused by the injection molding organic waste gas can be reduced.

[0017] In the present invention, when the control system controls the solenoid valve on the second air supply pipe to be opened and the air supply fan in the air supply box is turned on at the same time, external air is conveyed along the second air supply pipe to the elastic air bag, causing it to gradually expand. When the elastic air bag expands to the set size, the control system first controls the solenoid valve on the second air supply pipe to be closed, and then controls the air supply fan in the air supply box to be turned off. At this time, a certain amount of air is stored inside the elastic air bag. Subsequently, the two solenoid valves on the first switching air pipe are opened, so that a small part of the air in the elastic air bag enters the meshing transmission cavity along the first switching air pipe and the first diversion cavity, and pushes the piston plate to slide along the meshing transmission cavity until the other piston plate on the switching tooth seat moves and presses against the positioning ring at the position of the second diversion cavity. During this process, the switching gear is driven to rotate by the moving switching tooth seat. At this time, the top sealing turntable that rotates synchronously with the switching gear completes a 180° rotation, and the closed guiding channel is just aligned directly below the second picking cylinder. Since a large amount of air still remains stored inside the elastic air bag at this time, it will generate a certain air pressure on the corresponding piston plate on the switching tooth seat, thereby ensuring the stability of the position where the closed guiding channel is located after the 180° rotation, and preventing the closed guiding channel from being misaligned with the second picking cylinder due to external factors during the injection molding process. Thus, the working stability of the entire injection molding equipment can be greatly improved. Description of the Drawings

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0019] Figure 1 It is a schematic structural diagram of an automatic injection molding machine that can effectively reduce the leakage of organic waste gas.

[0020] Figure 2 It is Figure 1 the front view of the structure.

[0021] Figure 3 It is Figure 1 a schematic structural diagram from another angle.

[0022] Figure 4 It is a schematic structural diagram of the injection molding machine body in the present invention.

[0023] Figure 5 It is a schematic structural diagram of the airtight control system in the present invention.

[0024] Figure 6 It is Figure 5 the transverse structural sectional view of

[0025] Figure 7 It is a schematic structural diagram of the air control mechanism in the present invention.

[0026] Figure 8 It is Figure 7 the enlarged view of the local structure at A in

[0027] Figure 9 It is Figure 7 the schematic structural diagram from the upward view angle.

[0028] Figure 10 It is the transverse structural sectional view of the air control mechanism in the present invention.

[0029] Figure 11 It is Figure 10 the enlarged view of the local structure at B in

[0030] Figure 12 It is a schematic structural diagram of the airtight guiding mechanism in the present invention.

[0031] Figure 13 It is Figure 12 the schematic structural diagram from the upward view angle.

[0032] Figure 14 It is the transverse structural sectional view of the airtight guiding mechanism in the present invention.

[0033] Figure 15 This is a schematic structural diagram of the sealed component in the present invention.

[0034] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0035] 1 - Injection molding box, 2 - First picking cylinder, 3 - Second picking cylinder, 4 - Picking sealing disc, 5 - Sealing control system, 6 - Air control mechanism, 601 - First picking port, 602 - Second picking port, 603 - Top sealing cover plate, 604 - Transposition installation cavity, 605 - Exhaust gas discharge pipe, 606 - First slideway, 607 - First air supply pipe, 608 - First air guide pipe, 609 - First air push pipe, 610 - First air push rod, 611 - Limit guide seat, 612 - First elastic member, 613 - Second air guide pipe, 614 - Second air push pipe, 615 - Second air push rod, 616 - Moving frame, 617 - Limit guide rod, 618 - Gear cavity, 619 - Meshing transmission cavity, 620 - First diversion cavity, 621 - Second diversion cavity, 622 - First transposition air pipe, 623 - Solenoid valve, 624 - Second transposition air pipe, 625 - Air release valve, 626 - Air release pipe, 627 - Air supply equipment, 628 - Second air supply pipe, 629 - Elastic air bag, 7 - Sealing guiding mechanism, 701 - Sealing guiding channel, 702 - Top sealing turntable, 703 - Moving cavity, 704 - First cavity, 705 - Second cavity, 706 - Movable picking port, 707 - Second slideway, 708 - Transposition gear, 709 - Transposition tooth seat, 710 - Piston plate, 8 - Sealing component, 801 - Injection molding sealing disc, 802 - Force-bearing moving part, 803 - Positioning part, 804 - Second elastic member, 9 - Injection molding machine body, 10 - Control system, 11 - First robotic arm, 12 - Second robotic arm, 13 - Injection molding conveying system, 14 - Bin control system, 15 - Moving carrier, 16 - Robotic arm picking port. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0037] Specific embodiment one, please refer to Figures 1-15The present invention is an automated injection molding machine that effectively reduces the emission of organic waste gas, including an injection molding box 1, above which a first pickup cylinder 2 and a second pickup cylinder 3 are arranged; the first pickup cylinder 2 and the second pickup cylinder 3 are both installed with a pickup sealing disk 4 on the circumferential side of the output shaft, and a closed control system 5 is installed on the top of the injection molding box 1. Through the coordinated use of the first pickup cylinder 2, the second pickup cylinder 3, the pickup sealing disk 4 and the closed control system 5, non-open pickup of the injection molded product in the injection molding box 1 can be achieved, thereby effectively reducing the emission of organic waste gas generated during the injection molding process into the injection molding workshop to cause environmental pollution.

[0038] Among them, the closed control system 5 includes an air control mechanism 6, a closed guide mechanism 7 and a closed component 8; the air control mechanism 6 includes a first pickup port 601, a second pickup port 602, a first transposition airway, a second transposition airway, a first opening and closing airway and a second opening and closing airway, the first pickup port 601 is correspondingly arranged below the first pickup cylinder 2, and the second pickup port 602 is correspondingly arranged below the second pickup cylinder 3, two molds are arranged inside the injection molding box 1, the first pickup port 601 and the second pickup port 602 correspond to one mold respectively, and the first pickup port 601 and the second pickup port 602 correspond to one pickup station respectively, such as Figure 1 As shown, the pickup station corresponding to the first pickup port 601 on the left can be defined as the first pickup station, and the pickup station corresponding to the second pickup port 602 on the right can be defined as the second pickup station.

[0039] The closed guide mechanism 7 is rotatably installed on the top of the air control mechanism 6, and the closed guide mechanism 7 includes a closed guide channel 701. The first transposition air channel is used to push the closed guide mechanism 7 to rotate, so that the closed guide channel 701 rotates from the first pickup port 601 to the second pickup port 602, and the second transposition air channel is used to push the closed guide mechanism 7 to reverse and reset; the closed component 8 is slidably arranged inside the closed guide mechanism 7, and the closed component 8 includes an elastically resettable injection molding closed disk 801. The first opening and closing air channel is used to push the injection molding closed disk 801 to move to release the blockage of the first pickup port 601. At this time, the first pickup cylinder 2 can be used to realize the removal of the injection molded product at the first pickup station. The second opening and closing air channel is used to push the injection molding closed disk 801 to move to release the blockage of the second pickup port 602. At this time, the second pickup cylinder 3 can be used to realize the removal of the injection molded product at the second pickup station (during the injection molding process of the mold at the second pickup station).

[0040] In some embodiments, such as Figure 4As shown, the injection molding machine in this application includes an injection molding machine body 9. Among them, the injection molding machine body 9 consists of an injection molding box 1, a control system 10 (this control system 10 is used to control the mold opening and closing operations of the mold in the injection molding box 1), a first robotic arm 11, a second robotic arm 12, an injection conveying system 13, and a silo control system 14 (the entire injection molding machine body 9 belongs to the injection molding equipment in the prior art, and the cooperation of its various systems and between them all belongs to the prior art, so this application will not elaborate specifically). The control system 10 is arranged on one side of the injection molding box 1, the injection conveying system 13 is arranged on the other side of the injection molding box 1, the silo control system 14 is installed on top of the injection conveying system 13. After heating the plastic to form molten plastic through the silo control system 14, the molten plastic is then conveyed to the mold in the injection molding box 1 through the injection conveying system 13 to achieve injection molding. The first robotic arm 11 is installed on top of the injection molding box 1 near one side of the injection conveying system 13, and the second robotic arm 12 is slidably installed on top of the first robotic arm 11 (it should be noted that the reciprocating movement of the second robotic arm 12 on the first robotic arm 11 is controlled by a conventional power device, such as cylinder control or hydraulic cylinder control). A movable carrier 15 is slidably installed on the second robotic arm 12 (it should be noted that the reciprocating movement of the movable carrier 15 on the second robotic arm 12 is controlled by a conventional power device, such as cylinder control or hydraulic cylinder control). The first pick-up cylinder 2 and the second pick-up cylinder 3 are both installed on the movable carrier 15.

[0041] In some embodiments, as Figure 1 and Figure 7 shown, the air control mechanism 6 further includes a top sealing cover plate 603. An open robotic arm pick-up port 16 is provided at the top of the injection molding box 1, and the top sealing cover plate 603 is hermetically fitted inside the robotic arm pick-up port 16 (the top sealing cover plate 603 is fixed to the top of the injection molding box 1 by fasteners). A transposition installation cavity 604 is provided at the top of the top sealing cover plate 603 at the middle position between the first pick-up station and the second pick-up station. The first pick-up port 601 and the second pick-up port 602 are both provided inside the transposition installation cavity 604 and communicate with the inner cavity of the injection molding box 1. An exhaust gas discharge pipe 605 communicating with the inner cavity of the injection molding box 1 is installed at the top of the top sealing cover plate 603 (one end of this exhaust gas discharge pipe 605 is connected to an air extraction device). First slideways 606 communicating with the transposition installation cavity 604 are provided on both opposite sides of the top sealing cover plate 603.

[0042] In some embodiments, as Figure 5 and Figures 12 to 14As shown, the closed guiding mechanism 7 further includes a top-sealing turntable 702 which is rotatably installed inside the transposition installation cavity 604 (with a tight rotational fit and it will not rotate freely without external force). A moving cavity 703, a first channel 704 and a second channel 705 are provided inside the top-sealing turntable 702. The closed guiding channel 701 is fixedly installed on the top of the top-sealing turntable 702. An active pick-up opening 706 communicating with the moving cavity 703 is provided at the bottom of the top-sealing turntable 702. The active pick-up opening 706 is coaxially arranged with the closed guiding channel 701. The first channel 704 and the second channel 705 are arranged on both sides of the moving cavity 703 and communicate with the moving cavity 703. A second slideway 707 communicating with the first channel 704 is provided on the circumferential side of the top-sealing turntable 702. In the initial state, the closed guiding channel 701 is located at the position of the first pick-up opening 601 and is coaxially arranged with it. The first pick-up opening 601 and the active pick-up opening 706 are blocked by an injection-molded sealing disc 801. The second slideway 707 on the top-sealing turntable 702 is aligned with the first slideway 606 at the position of the first air-pushing pipe 609 (that is, the second slideway 707 is coaxially connected with the first slideway 606 at this position). At this time, the closed guiding channel 701 is coaxially arranged with the first pick-up cylinder 2, that is, the injection molding process occurs at the first injection molding station at this time.

[0043] In some embodiments, as Figure 7 and Figure 9 shown, the first opening and closing air passage is composed of a first air supply pipe 607, a first air guiding pipe 608, a first air-pushing pipe 609 and a first channel 704. Among them, the air inlet end of the first air guiding pipe 608 is connected to the air outlet end of the first air supply pipe 607, the air outlet end of the first air guiding pipe 608 is connected to the air inlet end of the first air-pushing pipe 609, the air outlet end of the first air-pushing pipe 609 is connected to the top-sealing cover plate 603, and the first air-pushing pipe 609 is communicated with the corresponding first slideway 606. The air flow is transported into the first air-pushing pipe 609 through the first air supply pipe 607 and the first air guiding pipe 608. The air flow entering the first air-pushing pipe 609 can be used as power to realize the movement of the injection-molded sealing disc 801. Thus, the movement of the injection-molded sealing disc 801 can be used to remove the blockage of the active pick-up opening 706 and the first pick-up opening 601.

[0044] Furthermore, a first air push rod 610 is slidably arranged inside the first air push tube 609, one end of the first air push rod 610 extends to the corresponding first slideway 606, and a limit guide seat 611 slidably arranged on the top of the control system 10 is fixed at the other end of the first air push rod 610, and the limit guide seat 611 is connected to the ear seat on the first air push tube 609 through a first elastic member 612, and an air push piston disk that fits inside the first air push tube 609 is fixed on the peripheral side of the first air push rod 610. The air flow entering the first air push tube 609 generates thrust on the air push piston disk, so that the air push piston disk gradually moves close to the top sealing cover plate 603, and the first air push rod 610 that moves synchronously with the air push piston disk drives The limiting guide seat 611 moves and compresses the first elastic member 612 until the air push piston disk on the first air push rod 610 presses against the top sealing cover plate 603. During this process, the first air push rod 610 slides into the second slide 707 along the corresponding first slide 606 and moves along the first cavity 704, thereby pushing the injection molding sealing disk 801 to slide along the movable cavity 703. When the air push piston disk on the first air push rod 610 presses against the top sealing cover plate 603, the injection molding sealing disk 801 moves out of the blockage of the movable pickup port 706 and presses against the inner wall of the movable cavity 703 that deviates from the movable pickup port 706 (that is, the injection molding sealing disk 801 is coaxial with the second pickup port 602).

[0045] In some embodiments, such as Figure 7 and Figure 9 As shown, the second open and close air channel is composed of a second air supply pipe 628, a second air duct 613, a second air push pipe 614 and a second cavity 705; wherein, the air inlet end of the second air duct 613 is connected to the air outlet end of the second air supply pipe 628, the air outlet end of the second air duct 613 is connected to the air inlet end of the second air push pipe 614, the air outlet end of the second air push pipe 614 is connected to the top sealing cover plate 603, and the second air push pipe 614 is connected to the corresponding first slide 606; the air flow is transported to the inside of the second air push pipe 614 through the first air supply pipe 607 and the second air duct 613, and the air flow entering the second air push pipe 614 can be used as a power to realize the movement of the injection molding closed disk 801, thereby realizing the movement of the injection molding closed disk 801 to release the blockage of the movable pickup port 706 and the second pickup port 602.

[0046] Further, a second air push rod 615 is slidably arranged inside the second air push pipe 614. One end of the second air push rod 615 extends into the corresponding first slideway 606. A moving frame 616 is fixed to the other end of the second air push rod 615. A limiting guide rod 617 slidably engaged with the moving frame 616 is installed on one side of the injection molding box 1. The moving frame 616 is connected to the ear seat on the second air push pipe 614 through a first elastic member 612. An air push piston disc fitted inside the second air push pipe 614 is fixed to the circumferential side of the second air push rod 615. The air flow entering the second air push pipe 614 generates a thrust on the air push piston disc, causing the air push piston disc to gradually move closer to the top sealing cover plate 603. The second air push rod 615 that moves synchronously with the air push piston disc drives the moving frame 616 to move and compress the first elastic member 612 until the air push piston disc on the second air push rod 615 presses against the top sealing cover plate 603. During this process, the second air push rod 615 slides into the second slideway 707 along the corresponding first slideway 606 and moves along the first cavity 704, thereby pushing the injection molding sealing disc 801 to slide along the moving cavity 703. When the air push piston disc on the second air push rod 615 presses against the top sealing cover plate 603, the injection molding sealing disc 801 moves away from blocking the movable picking port 706 and abuts against the inner wall of the moving cavity 703 that deviates from the movable picking port 706 (i.e., the injection molding sealing disc 801 is coaxial with the first picking port 601).

[0047] When using the mold at the first pick-up station for injection molding processing, after the injection-molded product is cooled, the pick-up airtight disc 4 thereon is controlled by the first pick-up cylinder 2 to move downward, so that the pick-up part at the bottom of the output end of the first pick-up cylinder 2 enters the airtight guiding channel 701 until the pick-up airtight disc 4 on the first pick-up cylinder 2 just fits inside the airtight guiding channel 701; Subsequently, an air flow is conveyed into the first air push tube 609 through the first air supply pipe 607 and the first air guiding pipe 608. The air flow entering the first air push tube 609 generates a thrust on the air push piston disc, causing the air push piston disc to gradually move closer to the top sealing cover plate 603. The first air push rod 610 that moves synchronously with the air push piston disc drives the limit guiding seat 611 to move and compress the first elastic member 612 until the air push piston disc on the first air push rod 610 presses against the top sealing cover plate 603. During this process, the first air push rod 610 slides into the second slideway 707 along the corresponding first slideway 606 and moves along the first cavity 704, thereby pushing the injection-molding airtight disc 801 to slide along the moving cavity 703. When the air push piston disc on the first air push rod 610 presses against the top sealing cover plate 603, the injection-molding airtight disc 801 moves away from blocking the movable pick-up port 706 and abuts against the inner wall of the moving cavity 703 that deviates from the movable pick-up port 706 (i.e., the injection-molding airtight disc 801 is coaxial with the second pick-up port 602). Then, the first pick-up cylinder 2 continues to control the pick-up part thereon to move downward into the injection-molding box 1 to suck the injection-molded product. At this time, the pick-up airtight disc 4 still fits in the airtight guiding channel 701.

[0048] Then, the sucked injection molded product continues to be controlled by the first pickup cylinder 2 to gradually move upward until the sucked injection molded product is lifted to the inside of the closed guide channel 701. At this time, the pickup closed disk 4 is still fitted in the closed guide channel 701, and then the air flow in the first open and closed airway is emptied and with the help of the elastic restoring force of the first elastic member 612, the first air push rod 610 and the air push piston disk thereon move in the opposite direction to complete the reset. At this time, the front end of the first air push rod 610 disengages from the second slide 707 and returns to the corresponding first slide 606. At the same time, the injection molding closed disk 801 slides back to the initial position along the movable cavity 703, that is, the movable pickup port 706 and the first pickup port 601 are blocked again by the injection molding closed disk 801, and then the first pickup cylinder 2 continues to control The sucked injection molded product moves upward and leaves the closed guide channel 701 until the picking-up closed disk 4 on the first picking-up cylinder 2 returns to the initial position. When the sucked injection molded product is moved to the desired position through the joint action of the first robotic arm 11 and the second robotic arm 12, the sucked injection molded product is controlled by the first picking-up cylinder 2 to move downward and is released on the conveyor belt at this position. After the first picking-up cylinder 2 retracts upward and completes resetting, the first picking-up cylinder 2 is moved to the initial position again through the joint action of the first robotic arm 11 and the second robotic arm 12. The injection molding operation can be carried out continuously according to the above working method. This non-open injection molding method can effectively reduce the direct dissipation of injection molding organic waste gas into the workshop environment, thereby reducing the environmental pollution of the injection molding workshop by injection molding organic waste gas.

[0049] Specific embodiment 2, based on specific embodiment 1, as Figure 10 , Figure 11 and Figure 13As shown, a gear cavity 618 is provided inside the top sealing cover plate 603 and is located between the first picking opening 601 and the second picking opening 602. A meshing transmission cavity 619 communicating with the gear cavity 618 is provided on one side of the gear cavity 618. A first diversion cavity 620 and a second diversion cavity 621 are respectively arranged at both ends of the meshing transmission cavity 619. The bottom of the top sealing turntable 702 is connected by a rotating shaft to a transposition gear 708 located inside the gear cavity 618. A transposition tooth seat 709 meshing with the transposition gear 708 is slidably arranged inside the meshing transmission cavity 619. Piston plates 710 are fixed at both ends of the transposition tooth seat 709. Two positioning rings are symmetrically fixed inside the meshing transmission cavity 619. The positioning ring corresponding to the first diversion cavity 620 is close to the first diversion cavity 620, and the positioning ring corresponding to the second diversion cavity 621 is close to the second diversion cavity 621. In the initial state (i.e., when injection molding is carried out using the mold at the first picking station), the piston plate 710 at the end of the transposition tooth seat 709 close to the first diversion cavity 620 abuts against this positioning ring. The sealed guiding channel 701 is located at the first picking station. When the piston plate 710 at the end of the transposition tooth seat 709 close to the second diversion cavity 621 is controlled to move and abut against the corresponding positioning ring, the top sealing turntable 702 rotates 180° under the meshing action of the transposition tooth seat 709 and the transposition gear 708. At this time, the second slideway 707 on the top sealing turntable 702 is concentrically aligned with the first slideway 606 at the position of the second air push pipe 614, and the sealed guiding channel 701 is concentrically aligned with the second picking opening 602 (i.e., the sealed guiding channel 701 is aligned with the second picking station).

[0050] In some embodiments, such as Figure 14 and Figure 15As shown, the injection molding sealing disk 801 is slidably fitted inside the moving cavity 703. A force-receiving moving part 802 fixed to the injection molding sealing disk 801 is slidably arranged inside the first channel 704, and a positioning part 803 fixed to the injection molding sealing disk 801 is slidably arranged inside the second channel 705. A second elastic member 804 connected to the positioning part 803 is arranged inside the second channel 705. In the initial state, under the elastic force of the second elastic member 804, the positioning part 803 presses against the end of the second channel 705 close to the movable picking port 706. At this time, the movable picking port 706 is blocked by the injection molding sealing disk 801, and the force-receiving moving part 802 is close to the second slideway 707. When the first air push rod 610 slides into the second slideway 707 along the corresponding first slideway 606 and moves along the first channel 704, the force-receiving moving part 802 is pushed by the first air push rod 610 to slide along the first channel 704, thereby causing the injection molding sealing disk 801 to slide along the moving cavity 703. The positioning part 803 that moves synchronously with the injection molding sealing disk 801 slides along the second channel 705 and compresses the second elastic member 804. When the air push piston disk on the first air push rod 610 presses against the top sealing cover plate 603, the injection molding sealing disk 801 moves away from blocking the movable picking port 706 and abuts against the inner wall of the moving cavity 703 deviating from the movable picking port 706 (i.e., the injection molding sealing disk 801 is coaxial with the second picking port 602).

[0051] In some embodiments, such as Figures 7 to 10As shown in the figure, the first commutation air passage is composed of a first commutation air pipe 622, a first diversion cavity 620 and an engagement transmission cavity 619. The first commutation air pipe 622 is installed on the top sealing cover plate 603 and is communicated with the first diversion cavity 620. Two solenoid valves 623 are installed on the first commutation air pipe 622. Solenoid valves 623 are installed at positions close to the first air supply pipe 607 on the first air duct 608 and the second air duct 613. After the solenoid valve 623 on the first air duct 608 is opened, an air flow is conveyed into the first air push pipe 609 through the first air duct 608 until the air push piston disc on the first air push rod 610 presses against the top sealing cover plate 603. At this time, the injection molding sealing disc 801 releases the blockage of the movable picking opening 706 and the first picking opening 601. The solenoid valve 623 on the first air duct 608 is controlled to close. When the picked injection molded product is lifted into the closed guiding channel 701 and the picking sealing disc 4 still cooperates in the closed guiding channel 701, the solenoid valve 623 on the first air duct 608 is controlled to open again, so that the air flow in the first opening and closing air passage flows reversely and is emptied. At this time, with the action of the elastic restoring force of the first elastic member 612, the first air push rod 610 and the air push piston disc thereon move reversely to complete the reset. At this time, the front end of the first air push rod 610 disengages from the second slideway 707 and returns to the corresponding first slideway 606 again. At the same time, the injection molding sealing disc 801 slides reversely along the moving cavity 703 and returns to the initial position.

[0052] In some embodiments, as Figures 7 to 11 shown in the figure, the second commutation air passage is composed of a second commutation air pipe 624, a second diversion cavity 621 and an engagement transmission cavity 619. One end of the second commutation air pipe 624 is connected to the first commutation air pipe 622. The two solenoid valves 623 on the first commutation air pipe 622 are respectively located on both sides of the second commutation air pipe 624. The other end of the second commutation air pipe 624 penetrates through the top of the injection molding box 1 from top to bottom and is connected to the bottom of the top sealing cover plate 603. The second commutation air pipe 624 is communicated with the second diversion cavity 621. A solenoid valve 623 is installed at a position close to the first commutation air pipe 622 on the second commutation air pipe 624. A drain pipe 626 with a drain valve 625 is connected to the second commutation air pipe 624.

[0053] Further, an air supply device 627 (specifically, an air supply fan is installed inside the air supply box) is installed at the rear side of the injection molding box 1. An air outlet on the air supply device 627 is connected to the first air supply pipe 607, and another air outlet on the air supply device 627 is connected to a second air supply pipe 628. A solenoid valve 623 is installed on the second air supply pipe 628. An elastic airbag 629 is arranged between the second air supply pipe 628 and the first transposition air pipe 622. The elastic airbag 629 and its related structures are mainly used to control the rotation of the sealed guiding mechanism 7. When it is necessary to perform injection molding processing using the mold at the second workpiece taking station, at this time, it is necessary to control the entire sealed guiding mechanism 7 to rotate 180° so that the sealed guiding channel 701 is aligned directly below the second workpiece taking cylinder 3. The specific control method is as follows:

[0054] Through the control system, when the solenoid valve 623 on the second air supply pipe 628 is controlled to open and the air supply fan in the air supply box is turned on at the same time, external air is conveyed along the second air supply pipe 628 into the elastic airbag 629, causing it to gradually expand. When the elastic airbag 629 expands to the set size, the control system first controls the solenoid valve 623 on the second air supply pipe 628 to close, and then controls the air supply fan in the air supply box to close. At this time, a certain amount of air is stored inside the elastic airbag 629. Subsequently, the two solenoid valves 623 on the first transposition air pipe 622 are opened, enabling a small portion of the air in the elastic airbag 629 to enter the meshing transmission cavity 619 along the first transposition air pipe 622 and the first diversion cavity 620, and pushing the piston plate 710 to slide along the meshing transmission cavity 619 until another piston plate 710 on the transposition tooth seat 709 moves to press against the positioning ring at the position of the second diversion cavity 621. During this process, the transposition tooth seat 709 that moves drives the transposition gear 708 to rotate. At this time, the top sealing turntable 702 that rotates synchronously with the transposition gear 708 completes a 180° rotation, and the sealed guiding channel 701 is just aligned directly below the second workpiece taking cylinder 3. Since a large amount of air still remains stored inside the elastic airbag 629 at this time, it will generate a certain air pressure on the corresponding piston plate 710 on the transposition tooth seat 709, thereby ensuring the stability of the position where the sealed guiding channel 701 is located after the 180° rotation, and preventing the sealed guiding channel 701 from being misaligned with the second workpiece taking cylinder 3 due to external factors during the injection molding process. Thus, the stability of the entire injection molding equipment during operation can be greatly improved.

[0055] After completing the rotational transposition of the closed guiding channel 701, the movement control of the injection molding closed disk 801 in the moving cavity 703 can be achieved by controlling the ventilation and exhaust of the second opening and closing air passage. Thus, the automatic picking process of the injection molded product after cooling at the second picking station can be realized according to the same control process of the first opening and closing air passage described above. The only difference is that during the movement of the second air push rod 615, the moving frame 616 that moves synchronously with the second air push rod 615 moves and compresses the first elastic member 612, and the moving frame 616 slides along the limit guide rod 617. After opening the solenoid valve 623 on the second air duct 613, the air flowing reversely along the second opening and closing air passage is discharged into the air supply box, thereby enabling the second air push rod 615 and the air push piston disk thereon to move reversely to complete the reset.

[0056] When it is necessary to use the mold at the first picking station for injection molding again, first control to close the solenoid valve 623 on the first switching air pipe 622 near the elastic airbag 629, and at the same time open the solenoid valve 623 on the second switching air pipe 624. At this time, the air flow in the first switching air passage flows back along the first switching air pipe 622 into the second switching air pipe 624. Then control to close the solenoid valve 623 on the first switching air pipe 622 near the top sealing cover plate 603, and at the same time open the solenoid valve 623 on the first switching air pipe 622 near the elastic airbag 629. At this time, part of the air in the elastic airbag 629 enters the meshing transmission cavity 619 along the second switching air pipe 624 and the second diversion cavity 621, and pushes the piston plate 710 to slide along the meshing transmission cavity 619 until the piston plate 710 on the switching tooth seat 709 near the first diversion cavity 620 moves and presses against the positioning ring at the position of the first diversion cavity 620 (that is, the switching tooth seat 709 is reset). During this process, the switching tooth seat 709 that moves in the reverse direction drives the switching gear 708 to rotate in the reverse direction. At this time, the top sealing turntable 702 that rotates synchronously with the switching gear 708 completes a 180° reverse rotation, and the airtight guiding channel 701 is realigned directly below the first picking cylinder 2 (that is, the airtight guiding channel 701 returns to the initial position). Since there is still a large amount of air stored inside the elastic airbag 629 at this time, it will generate a certain air pressure on the corresponding piston plate 710 on the switching tooth seat 709, which can ensure the stability of the position where the airtight guiding channel 701 is located after completing the 180° rotation, and prevent the airtight guiding channel 701 from being misaligned with the first picking cylinder 2 due to external factors during the injection molding process. Thus, the stability of the entire injection molding equipment can be greatly improved. After the airtight guiding channel 701 is reset, by controlling the ventilation and exhaust of the first opening and closing air passage again, the movement control of the injection molding airtight disc 801 in the moving cavity 703 can be realized. Thus, according to the same control process of the first opening and closing air passage as above, the automatic picking process of the injection molded product after cooling at the first picking station can be realized. Of course, after completing the mass production of injection molded products, by controlling to open the air release valve 625 on the air release pipe 626, at this time, the air flow in the elastic airbag 629 and the second switching air passage can be discharged along the air release pipe 626. After the air in the elastic airbag 629 is discharged and the elastic airbag 629 retracts, control to close the air release valve 625 on the air release pipe 626, the solenoid valve 623 on the second switching air pipe 624, and the solenoid valve 623 on the first switching air pipe 622 near the elastic airbag 629. At this time, all components on the entire injection molding machine are reset.

[0057] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0058] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. An automated injection molding machine that effectively reduces the outward dispersion of organic waste gas, including an injection molding box, and a first picking cylinder and a second picking cylinder are arranged above the injection molding box; it is characterized in that, The first and second take-up cylinders are both provided with take-up sealing disks on the sides of their output shafts, and a sealed control system is installed on the top of the injection molding box; Wherein, the closed control system includes: An air control mechanism, the air control mechanism comprising a first pickup port, a second pickup port, a first transposition air passage, a second transposition air passage, a first opening and closing air passage, and a second opening and closing air passage, the first pickup port being correspondingly arranged below the first pickup cylinder, and the second pickup port being correspondingly arranged below the second pickup cylinder; A closed guide mechanism, the closed guide mechanism is rotatably mounted on the top of the air control mechanism, the closed guide mechanism includes a closed guide channel, the first transposition air channel is used to push the closed guide mechanism to rotate, so that the closed guide channel rotates from the first pickup port to the second pickup port, and the second transposition air channel is used to push the closed guide mechanism to reverse and reset; And a sealing component, which is slidably arranged inside the sealing guide mechanism, and the sealing component includes an injection-molded sealing disk that can be elastically reset. The first opening and closing airway is used to push the injection-molded sealing disk to move to release the blockage of the first pickup port, and the second opening and closing airway is used to push the injection-molded sealing disk to move to release the blockage of the second pickup port.

2. The automated injection molding machine for effectively reducing the emission of organic waste gas according to claim 1, characterized in that, It includes an injection molding machine body; wherein, the injection molding machine body consists of an injection molding box, a control system, a first robotic arm, a second robotic arm, an injection conveying system and a silo control system, the control system is arranged on one side of the injection molding box, the injection conveying system is arranged on the other side of the injection molding box, the silo control system is installed on the top of the injection conveying system, the first robotic arm is installed on the top of the injection molding box close to the injection conveying system, the second robotic arm is slidably installed on the top of the first robotic arm, a mobile carrier is slidably installed on the second robotic arm, and the first pickup cylinder and the second pickup cylinder are both installed on the mobile carrier.

3. An automated injection molding machine for effectively reducing the leakage of organic waste gas according to claim 2, characterized in that, The gas control mechanism also includes a top sealing cover plate, an open robot arm pickup port is provided on the top of the injection molding box, and the top sealing cover plate is tightly fitted inside the robot arm pickup port. A transposition installation cavity is provided on the top of the top sealing cover plate, which is located in the middle of the first pickup station and the second pickup station. The first pickup port and the second pickup port are both provided inside the transposition installation cavity and are connected to the inner cavity of the injection molding box. An exhaust gas exhaust pipe connected to the inner cavity of the injection molding box is installed on the top of the top sealing cover plate, and first slideways connected to the transposition installation cavity are provided on opposite sides of the top sealing cover plate.

4. An automated injection molding machine for effectively reducing the external dispersion of organic waste gas according to claim 3, characterized in that, The closed guide mechanism also includes a top sealing turntable, which is rotatably installed inside the transposition installation cavity, and a mobile cavity, a first cavity and a second cavity are provided inside the top sealing turntable. The closed guide channel is fixedly installed on the top of the top sealing turntable, and a movable pickup port connected to the mobile cavity is provided at the bottom of the top sealing turntable. The movable pickup port is coaxially arranged with the closed guide channel, the first cavity and the second cavity are arranged on both sides of the mobile cavity and are connected to the mobile cavity, and a second slideway connected to the first cavity is provided on the peripheral side of the top sealing turntable.

5. An automated injection molding machine for effectively reducing the external dispersion of organic waste gas according to claim 4, characterized in that The first opening and closing air duct is composed of a first air supply pipe, a first air guiding pipe, a first air pushing pipe and a first cavity; wherein, the air inlet end of the first air guiding pipe is connected to the air outlet end of the first air supply pipe, the air outlet end of the first air guiding pipe is connected to the air inlet end of the first air pushing pipe, the air outlet end of the first air pushing pipe is connected to the top sealing cover plate, and the first air pushing pipe is communicated with the corresponding first slideway; A first air pushing rod is slidably arranged inside the first air pushing pipe, one end of the first air pushing rod extends into the corresponding first slideway, a limit guiding seat slidably arranged on the top of the control system is fixed at the other end of the first air pushing rod, the limit guiding seat and the ear seat on the first air pushing pipe are connected by a first elastic member, and an air pushing piston disc matched with the inside of the first air pushing pipe is fixed on the peripheral side of the first air pushing rod.

6. An automated injection molding machine for effectively reducing the leakage of organic waste gas according to claim 5, characterized in that, The second opening and closing air duct is composed of a second air supply pipe, a second air guiding pipe, a second air pushing pipe and a second cavity; wherein, the air inlet end of the second air guiding pipe is connected to the air outlet end of the second air supply pipe, the air outlet end of the second air guiding pipe is connected to the air inlet end of the second air pushing pipe, the air outlet end of the second air pushing pipe is connected to the top sealing cover plate, and the second air pushing pipe is communicated with the corresponding first slideway; A second air pushing rod is slidably arranged inside the second air pushing pipe, one end of the second air pushing rod extends into the corresponding first slideway, a moving frame is fixed at the other end of the second air pushing rod, a limit guiding rod slidably matched with the moving frame is installed on one side of the injection molding box, the moving frame and the ear seat on the second air pushing pipe are connected by a first elastic member, and an air pushing piston disc matched with the inside of the second air pushing pipe is fixed on the peripheral side of the second air pushing rod.

7. An automated injection molding machine for effectively reducing the leakage of organic waste gas according to claim 6, characterized in that, A gear cavity located between the first workpiece taking port and the second workpiece taking port is formed inside the top sealing cover plate, a meshing transmission cavity communicated with the gear cavity is formed on one side of the gear cavity, and a first diversion cavity and a second diversion cavity are respectively arranged at two ends of the meshing transmission cavity; The bottom of the top sealing turntable is connected by a rotating shaft with a reversing gear located inside the gear cavity, a reversing tooth seat meshed with the reversing gear is slidably arranged inside the meshing transmission cavity, and piston plates are fixed at both ends of the reversing tooth seat.

8. An automated injection molding machine for effectively reducing the leakage of organic waste gas according to claim 7, characterized in that, The injection molding sealing disc is slidably matched inside the moving cavity, a force receiving moving part fixed to the injection molding sealing disc is slidably arranged inside the first cavity, a positioning part fixed to the injection molding sealing disc is slidably arranged inside the second cavity, and a second elastic member connected to the positioning part is arranged inside the second cavity.

9. An automated injection molding machine for effectively reducing the emission of organic waste gas according to claim 8, characterized in that, The first reversing air duct is composed of a first reversing air pipe, a first diversion cavity and a meshing transmission cavity, the first reversing air pipe is installed on the top sealing cover plate and communicated with the first diversion cavity, two electromagnetic valves are installed on the first reversing air pipe, and electromagnetic valves are installed on the first air guiding pipe and the second air guiding pipe close to the position of the first air supply pipe.

10. An automated injection molding machine for effectively reducing the leakage of organic waste gas according to claim 9, characterized in that, The second commutation air duct is composed of a second commutation air pipe, a second diversion cavity and an engagement transmission cavity. One end of the second commutation air pipe is connected to the first commutation air pipe. The two solenoid valves on the first commutation air pipe are respectively located on both sides of the second commutation air pipe. The other end of the second commutation air pipe penetrates through the top of the injection molding box from top to bottom and is connected to the bottom of the top sealing cover plate. The second commutation air pipe is communicated with the second diversion cavity. A solenoid valve is installed at a position on the second commutation air pipe close to the first commutation air pipe. A discharge air pipe with a relief valve is connected to the second commutation air pipe; An air supply device is installed at the rear side of the injection molding box. One air outlet on the air supply device is connected to the first air supply pipe. The other air outlet on the air supply device is connected to a second air supply pipe. A solenoid valve is installed on the second air supply pipe. An elastic air bag is arranged between the second air supply pipe and the first commutation air pipe.

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