Automatic injection molding machine capable of effectively reducing outward dissipation of organic waste gas

Abstract

The invention discloses an automatic injection molding machine capable of effectively reducing outward dissipation of organic waste gas, and relates to the technical field of injection molding machines. Pick-up sealing discs are installed on the circumferential side faces of output shafts of a first pick-up air cylinder and a second pick-up air cylinder, a first pick-up opening is correspondingly formed in the lower portion of the first pick-up air cylinder, a second pick-up opening is correspondingly formed in the lower portion of the second pick-up air cylinder, and a first transposition air channel is used for pushing a sealing guide mechanism to rotate. The second transposition air channel is used for pushing the closed guide mechanism to rotate reversely and reset, and the first opening and closing air channel is used for pushing the injection molding closed disc to move to remove blocking of the first part taking opening. The second opening and closing air channel is used for pushing the injection molding sealing disc to move to remove blocking of the second part taking opening. Through cooperative use of the first part taking air cylinder, the second part taking air cylinder, the part taking sealing disc and the sealing control system, non-open part taking of injection molding products on different stations can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding machines, and particularly relates to an automatic injection molding machine that can effectively reduce 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 the 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 automatic 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 automatic 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 injection organic waste gas, we provide an automatic injection molding machine that can effectively reduce 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 automatic injection molding machine that can effectively reduce the external dispersion of organic waste gas. Through the specific structural design of the injection molding machine body, part-taking sealing plate, air control mechanism, sealing guiding mechanism, and sealing component, the problem in the prior art that in order to facilitate the automatic 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 automatic injection molding machine that can effectively reduce 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 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. Among them, the closed control system includes a gas control mechanism, and the gas control mechanism includes a first pick-up port, a second pick-up port, a first switching air duct, a second switching air duct, a first opening and closing air duct, and a second opening and closing air duct. The first pick-up port is correspondingly arranged below the first pick-up cylinder, and the second pick-up port is correspondingly arranged below the second pick-up cylinder; a closed guiding mechanism, which is rotatably installed on the top of the gas control mechanism. The closed guiding mechanism includes a closed guiding channel. The first switching air duct is used to push the closed guiding mechanism to rotate, so that the closed guiding channel rotates from the first pick-up port to the position of the second pick-up port. The second switching air duct is used to push the closed guiding mechanism to reverse and reset; and a closed component, which is slidably arranged inside the closed guiding mechanism. The closed component includes an injection molding closed disk that can be elastically reset. The first opening and closing air duct is used to push the injection molding closed disk to move to release the blockage of the first pick-up port, and the second opening and closing air duct is used to push the injection molding closed disk to move to release the blockage of the second pick-up port.

[0007] In some embodiments, the gas control mechanism further includes a top sealing cover plate. An open robotic arm pick-up port is opened on the top of the injection molding box. The top sealing cover plate is hermetically fitted inside the robotic arm pick-up port. A switching installation cavity is opened on the top of the top sealing cover plate at the middle position between the first pick-up station and the second pick-up station. The first pick-up port and the second pick-up port are both opened inside the switching installation cavity and communicate with the inner cavity of the injection molding box. An exhaust gas discharge pipe communicating with the inner cavity of the injection molding box is installed on the top of the top sealing cover plate. First sliding channels communicating with the switching installation cavity are opened on both opposite sides of the top sealing cover plate.

[0008] In some embodiments, the closed guiding mechanism further includes a top sealing turntable, which is rotatably installed inside the switching installation cavity. A moving cavity, a first cavity and a second cavity are opened inside the top sealing turntable. The closed guiding channel is fixedly installed on the top of the top sealing turntable. An active pick-up port communicating with the moving cavity is opened at the bottom of the top sealing turntable. The active pick-up port is coaxially arranged with the closed guiding channel. The first cavity and the second cavity are arranged on both sides of the moving cavity and communicate with the moving cavity. Second sliding channels communicating with the first cavity are opened on the circumferential side of the top sealing turntable.

[0009] In some embodiments, 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 limiting guide seat slidably arranged on the top of the control system is fixed at the other end of the first air pushing rod, the limiting guide 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 circumferential side of the first air pushing rod.

[0010] In some embodiments, the second opening and closing air duct is composed of a first air supply pipe, a second air guiding pipe, a second air pushing pipe, and a first cavity; wherein, the air inlet end of the second air guiding pipe is connected to the air outlet end of the first 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 limiting guide 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 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 commutation gear located inside the gear cavity is connected to the bottom of the top sealing turntable through a rotating shaft, a commutation tooth seat meshed with the commutation gear is slidably arranged inside the meshing transmission cavity, and piston plates are fixed at both ends of the commutation 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 transposition air duct is composed of a first transposition air pipe, a first diversion cavity and an engagement transmission cavity. The first transposition 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 transposition air pipe. Electromagnetic valves are installed at positions close to the first air supply pipe on the first air duct and the second air duct.

[0014] In some embodiments, the second transposition air duct is composed of a second transposition air pipe, a second diversion cavity and an engagement transmission cavity. One end of the second transposition air pipe is connected to the first transposition air pipe. The two electromagnetic valves on the first transposition air pipe are respectively located on both sides of the second transposition air pipe. The other end of the second transposition 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 transposition air pipe is communicated with the second diversion cavity. An electromagnetic valve is installed at a position close to the first transposition air pipe on the second transposition air pipe. An exhaust pipe with a relief valve is connected to the second transposition air pipe. An air supply device is installed at the rear side 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 air bag is arranged between the second air supply pipe and the first transposition 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 at the same time can meet the non-open picking of the injection molded products at different workstations, thereby effectively reducing the organic waste gas generated during the injection molding process from escaping into the injection molding workshop and causing environmental pollution, and contributing to the realization of the harmless production process of the entire injection molding machine.

[0016] 2. When the picking part at the bottom of the output end of the first picking cylinder enters the closed guiding channel, 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 blockage of the movable picking port 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 on it 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 continued to control the sucked injection molded product to move 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 on 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 emission 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] 3. 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 started at the same time, the external air is conveyed along the second air supply pipe to the elastic air bag to make it 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 closed. At this time, a certain amount of air is stored inside the elastic air bag. Subsequently, the two solenoid valves on the first conversion 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 conversion air pipe and the first diversion cavity, and pushes the piston plate to slide along the meshing transmission cavity until another piston plate on the conversion tooth seat moves to press against the positioning ring at the position of the second diversion cavity. During this process, the conversion gear is driven to rotate by the moving conversion tooth seat. At this time, the top sealing turntable that rotates synchronously with the conversion gear completes a 180° rotation, and the closed guiding channel just aligns with the position directly below the second picking cylinder. Since there is still a large amount of air stored inside the elastic air bag at this time, it will generate a certain air pressure on the corresponding piston plate on the conversion tooth seat, which can ensure the stability of the position of the closed guiding channel after the 180° rotation and prevent the misalignment of the closed guiding channel and the second picking cylinder due to external factors during the injection molding process. Therefore, the working stability of the entire injection molding equipment can be greatly improved. BRIEF 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 effectively reduces the outward dispersion 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 sealing component in the present invention.

[0034] In the attached drawings, the list of components represented by each reference numeral is as follows: 1 - Injection molding box, 2 - First picking cylinder, 3 - Second picking cylinder, 4 - Picking sealing plate, 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 guiding pipe, 609 - First air pushing pipe, 610 - First air pushing rod, 611 - Limit guiding seat, 612 - First elastic member, 613 - Second air guiding pipe, 614 - Second air pushing pipe, 615 - Second air pushing rod, 616 - Moving frame, 617 - Limit guiding 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 airbag, 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 plate, 802 - Force - receiving 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

[0035] 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 creative efforts belong to the scope of protection of the present invention.

[0036] Specific Embodiment 1, 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.

[0037] 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.

[0038] 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).

[0039] In some embodiments, such as Figure 4As shown, the injection molding machine in the present 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 (the 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 work among its various systems belongs to the prior art, so the present 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 the 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 into 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 the 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 the 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 moving carrier 15 is slidably installed on the second robotic arm 12 (it should be noted that the reciprocating movement of the moving 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 picking cylinder 2 and the second picking cylinder 3 are both installed on the moving carrier 15.

[0040] In some embodiments, such as Figure 1 and Figure 7 As shown, the air control mechanism 6 further includes a top sealing cover plate 603. An open robotic arm picking 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 picking port 16 (the top sealing cover plate 603 is fixed to the top of the injection molding box 1 through 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 picking station and the second picking station. The first picking port 601 and the second picking 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 the 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.

[0041] In some embodiments, such 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 activity picking port 706 communicating with the moving cavity 703 is provided at the bottom of the top-sealing turntable 702. The activity picking port 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 picking port 601 and is coaxially arranged with it. The first picking port 601 and the activity picking port 706 are blocked by the 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 tube 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 picking cylinder 2, that is, the injection molding process occurs at the first injection molding station at this time.

[0042] In some embodiments, as Figure 7 and Figure 9 shown, the first opening and closing air channel is composed of a first air supply pipe 607, a first air guiding pipe 608, a first air-pushing tube 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 tube 609, the air outlet end of the first air-pushing tube 609 is connected to the top-sealing cover plate 603, and the first air-pushing tube 609 is communicatively arranged with the corresponding first slideway 606. The air flow is conveyed into the first air-pushing tube 609 through the first air supply pipe 607 and the first air guiding pipe 608. The air flow entering the first air-pushing tube 609 can be used as power to realize the movement of the injection-molded sealing disc 801, and thus the movement of the injection-molded sealing disc 801 can be used to release the blockage of the activity picking port 706 and the first picking port 601.

[0043] 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).

[0044] In some embodiments, such as Figure 7 and Figure 9 As shown, the second open and close air channel is composed of a first air supply pipe 607, a second air duct 613, a second air push pipe 614 and a first cavity 704; wherein, the air inlet end of the second air duct 613 is connected to the air outlet end of the first air supply pipe 607, 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.

[0045] Further, a second air push rod 615 is slidably disposed 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 surface 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 driving 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 deviating from the movable picking port 706 (i.e., the injection molding sealing disc 801 is coaxial with the first picking port 601).

[0046] When using the mold at the first picking station for injection molding processing, after the injection molded product is cooled, the picking sealing disc 4 on it is controlled by the first picking cylinder 2 to move downward, so that the picking part at the bottom of the output end of the first picking cylinder 2 enters the closed guiding channel 701 until the picking sealing disc 4 on the first picking cylinder 2 just fits inside the closed guiding channel 701; Subsequently, an air flow is conveyed 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 generates a thrust on the air pushing piston disc, causing the air pushing piston disc to gradually move closer to the top sealing cover plate 603. The first air pushing rod 610 that moves synchronously with the air pushing piston disc drives the limit guiding seat 611 to move and compress the first elastic member 612 until the air pushing piston disc on the first air pushing rod 610 presses against the top sealing cover plate 603. During this process, the first air pushing 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 sealing disc 801 to slide along the moving cavity 703. When the air pushing piston disc on the first air pushing rod 610 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 second picking port 602). Then, the picking part on the first picking cylinder 2 is further controlled to move downward into the injection molding box 1 to pick up the injection molded product. At this time, the picking sealing disc 4 still fits in the closed guiding channel 701.

[0047] Subsequently, continue to control the sucked injection-molded product to gradually move upward through the first picking cylinder 2 until the sucked injection-molded product is lifted into the sealed guiding channel 701. At this time, the picking sealing disc 4 still cooperates in the sealed guiding channel 701. Then, evacuate the air flow in the first opening and closing air passage and rely on the elastic restoring force of the first elastic member 612 to make the first air push rod 610 and the air push piston disc thereon move in the reverse direction 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. At the same time, the injection-molded sealing disc 801 slides reversely along the moving cavity 703 back to the initial position, that is, the movable picking port 706 and the first picking port 601 are blocked again by the injection-molded sealing disc 801. Then, continue to control the sucked injection-molded product to move upward through the first picking cylinder 2 to disengage from the sealed guiding channel 701 until the picking sealing disc 4 on the first picking cylinder 2 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 11 and the second robotic arm 12, control the sucked injection-molded product to move downward through the first picking cylinder 2 and release it on the conveyor belt at this position. After the first picking cylinder 2 retracts upward to complete the reset, move the first picking cylinder 2 to the initial position again through the combined action of the first robotic arm 11 and the second robotic arm 12. According to the above working mode, the injection molding operation can be continuously carried out. Through this non-open injection molding method, the direct emission of injection molding organic waste gas into the workshop environment can be effectively reduced, and thus the environmental pollution of the injection molding workshop by the injection molding organic waste gas can be reduced.

[0048] Specific Embodiment 2, on the basis of Specific Embodiment 1, as Figure 10 、 Figure 11 and Figure 13As shown, a gear chamber 618 is provided inside the top sealing cover plate 603 and is located between the first pick-up port 601 and the second pick-up port 602. A meshing transmission chamber 619 communicating with the gear chamber 618 is provided on one side of the gear chamber 618. A first diversion chamber 620 and a second diversion chamber 621 are respectively provided at both ends of the meshing transmission chamber 619. The bottom of the top sealing turntable 702 is connected by a rotating shaft to a commutation gear 708 located inside the gear chamber 618. A commutation tooth seat 709 meshing with the commutation gear 708 is slidably provided inside the meshing transmission chamber 619. Piston plates 710 are fixed to both ends of the commutation tooth seat 709. Two positioning rings are symmetrically fixed inside the meshing transmission chamber 619. The positioning ring corresponding to the first diversion chamber 620 is close to the first diversion chamber 620, and the positioning ring corresponding to the second diversion chamber 621 is close to the second diversion chamber 621. In the initial state (i.e., when injection molding is carried out using the mold at the first pick-up station), the piston plate 710 at the end of the commutation tooth seat 709 close to the first diversion chamber 620 abuts against this positioning ring. The sealed guiding channel 701 is located at the first pick-up station. When the piston plate 710 at the end of the commutation tooth seat 709 close to the second diversion chamber 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 commutation tooth seat 709 and the commutation 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 tube 614, and the sealed guiding channel 701 is concentrically aligned with the second pick-up port 602 (i.e., the sealed guiding channel 701 is aligned with the second pick-up station).

[0049] In some embodiments, such as Figure 14 and Figure 15As shown, the injection molding sealing disc 801 is slidably fitted inside the moving cavity 703. A force-receiving moving part 802 fixed to the injection molding sealing disc 801 is slidably arranged inside the first channel 704, and a positioning part 803 fixed to the injection molding sealing disc 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 disc 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 disc 801 to slide along the moving cavity 703. The positioning part 803 that moves synchronously with the injection molding sealing disc 801 slides along the second channel 705 and compresses the second elastic member 804. When the air push piston disc on the first air push rod 610 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 second picking port 602).

[0050] In some embodiments, such as Figures 7 to 10As shown, the first transposition air passage is composed of a first transposition air pipe 622, a first diversion cavity 620, and an engagement transmission cavity 619. The first transposition 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 transposition 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 pick-up port 706 and the first pick-up port 601. Control the solenoid valve 623 on the first air duct 608 to close. When the sucked injection molded product is lifted into the closed guiding channel 701 and the pick-up sealing disc 4 still cooperates in the closed guiding channel 701, control the solenoid valve 623 on the first air duct 608 to open again, so that the air flow in the first opening and closing air passage reversely flows and is emptied. At this time, with 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.

[0051] In some embodiments, as Figures 7 to 11 shown, the second transposition air passage is composed of a second transposition air pipe 624, a second diversion cavity 621, and an engagement transmission cavity 619. One end of the second transposition air pipe 624 is connected to the first transposition air pipe 622. The two solenoid valves 623 on the first transposition air pipe 622 are respectively located on both sides of the second transposition air pipe 624. The other end of the second transposition 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 transposition air pipe 624 is communicated with the second diversion cavity 621. A solenoid valve 623 is installed at a position close to the first transposition air pipe 622 on the second transposition air pipe 624. A drain pipe 626 with a drain valve 625 is connected to the second transposition air pipe 624.

[0052] 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 displacement air pipe 622. The elastic airbag 629 and its related structures are mainly used to control the rotation of the closed guiding mechanism 7. When it is necessary to perform injection molding processing using the mold at the second workpiece picking station, at this time, it is necessary to control the entire closed guiding mechanism 7 to rotate 180° so that the closed guiding channel 701 is aligned directly below the second workpiece picking cylinder 3. The specific control method is as follows: Through the control system, while controlling the solenoid valve 623 on the second air supply pipe 628 to open, the air supply fan in the air supply box is turned on, so that external air is transported 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 displacement air pipe 622 are opened, so that a small part of the air in the elastic airbag 629 enters the meshing transmission cavity 619 along the first displacement air pipe 622 and the first diversion cavity 620, and pushes the piston plate 710 to slide along the meshing transmission cavity 619 until the other piston plate 710 on the displacement tooth seat 709 moves and presses against the positioning ring at the position of the second diversion cavity 621. During this process, the displacement gear 708 is driven to rotate by the moving displacement tooth seat 709. At this time, the top sealing turntable 702 that rotates synchronously with the displacement gear 708 completes a 180° rotation, and the closed guiding channel 701 is just aligned directly below the second workpiece picking 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 displacement tooth seat 709, thereby ensuring the stability of the position where the closed guiding channel 701 is located after the 180° rotation, and preventing the closed guiding channel 701 from being misaligned with the second workpiece picking 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.

[0053] After the rotation and transposition of the closed guiding channel 701 are completed, 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 mentioned 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 the solenoid valve 623 on the second air duct 613 is opened, 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.

[0054] When it is necessary to use the mold at the first picking station for injection molding again, first control the solenoid valve 623 on the first switching air pipe 622 close to the elastic air bag 629 to close, 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 the solenoid valve 623 on the first switching air pipe 622 close to the top sealing cover plate 603 to close, and at the same time open the solenoid valve 623 on the first switching air pipe 622 close to the elastic air bag 629. At this time, part of the air in the elastic air bag 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 close to 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 moving in the reverse direction drives the switching gear 708 to rotate in the reverse direction. At this time, the top sealing turntable 702 rotating synchronously with the switching gear 708 completes a 180° reverse rotation, and the closed guiding channel 701 is realigned directly below the first picking cylinder 2 (that is, the closed guiding channel 701 returns to the initial position). Since there is still a large amount of air stored inside the elastic air bag 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 of the closed guiding channel 701 after the 180° rotation and prevent the closed guiding channel 701 from being misaligned with the first picking cylinder 2 due to external factors during the injection molding process. Therefore, the stability of the entire injection molding equipment can be greatly improved. After the reset of the closed guiding channel 701 is completed, the movement control of the injection molding closed disk 801 in the moving cavity 703 can be realized by controlling the ventilation and exhaust of the first opening and closing air passage again. 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 cooled at the first picking station can be realized. Of course, after the batch production of injection molded products is completed, by controlling the opening of the air release valve 625 on the air release pipe 626, the air flow in the elastic air bag 629 and the second switching air passage can be discharged along the air release pipe 626. After the air in the elastic air bag 629 is discharged and the elastic air bag 629 retracts, control the closing of 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 close to the elastic air bag 629. At this time, all components on the entire injection molding machine are reset.

[0055] 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 any one or more embodiments or examples in a suitable manner.

[0056] The preferred embodiments of the present invention disclosed above are only used to help explain 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 to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and utilize the present invention well. 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 emission of organic waste gas, comprising an injection molding box, wherein a first take-out cylinder and a second take-out cylinder are provided above the injection molding box; 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 comprises: 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 automatic 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. The automatic injection molding machine for effectively reducing the emission 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. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 3 is 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. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 4, characterized in that: The first open and close airway is composed of a first air supply pipe, a first air guide pipe, a first air push pipe and a first cavity; wherein the air inlet end of the first air guide pipe is connected to the air outlet end of the first air supply pipe, the air outlet end of the first air guide pipe is connected to the air inlet end of the first air push pipe, the air outlet end of the first air push pipe is connected to the top sealing cover plate, and the first air push pipe is connected to the corresponding first slideway; A first air push rod is slidably arranged inside the first air push tube, one end of the first air push rod extends to the corresponding first slideway, the other end of the first air push rod is fixed with a limit guide seat slidably arranged on the top of the control system, the limit guide seat is connected to the ear seat on the first air push tube by a first elastic member, and a air push piston disk that cooperates with the inside of the first air push tube is fixed on the peripheral side of the first air push rod.

6. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 5, characterized in that: The second open and close airway is composed of a first air supply pipe, a second air guide pipe, a second air push pipe and a first cavity; wherein the air inlet end of the second air guide pipe is connected to the air outlet end of the first air supply pipe, the air outlet end of the second air guide pipe is connected to the air inlet end of the second air push pipe, the air outlet end of the second air push pipe is connected to the top sealing cover plate, and the second air push pipe is connected to the corresponding first slideway; A second air push rod is slidably arranged inside the second air push tube, one end of the second air push rod extends to the corresponding first slide, a moving frame is fixed to the other end of the second air push rod, a limiting guide rod that slidably cooperates with the moving frame is installed on one side of the injection molding box, the moving frame is connected to the ear seat on the second air push tube by a first elastic member, and an air push piston disk that cooperates with the inside of the second air push tube is fixed on the peripheral side of the second air push rod.

7. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 6, characterized in that: A gear cavity located between the first and second take-out ports is provided inside the top sealing cover plate, a meshing transmission cavity connected thereto is provided on one side of the gear cavity, and a first guide cavity and a second guide cavity are provided at both ends of the meshing transmission cavity; The bottom of the top sealing turntable is connected to a transposition gear located inside the gear cavity through a rotating shaft, a transposition gear seat meshing with the transposition gear is slidably arranged inside the meshing transmission cavity, and piston plates are fixed to both ends of the transposition gear seat.

8. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 7, characterized in that: The injection molded sealed disk is slidably fitted inside the movable cavity, a force-bearing movable part fixed to the injection molded sealed disk is slidably provided inside the first cavity, a positioning part fixed to the injection molded sealed disk is slidably provided inside the second cavity, and a second elastic member connected to the positioning part is provided inside the second cavity.

9. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 8, characterized in that: The first transposition air duct is composed of a first transposition air pipe, a first flow guide cavity and a meshing transmission cavity. The first transposition air pipe is installed on the top sealing cover plate and is connected to the first flow guide cavity. Two solenoid valves are installed on the first transposition air pipe. Solenoid valves are installed on the first air guide duct and the second air guide duct at positions close to the first air supply duct.

10. The automatic injection molding machine for effectively reducing the emission of organic waste gas according to claim 9, characterized in that: The second transposition airway is composed of a second transposition air pipe, a second guide cavity and a meshing transmission cavity. One end of the second transposition air pipe is connected to the first transposition air pipe. Two solenoid valves on the first transposition air pipe are respectively located on both sides of the second transposition air pipe. The other end of the second transposition air pipe passes 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 transposition air pipe is connected to the second guide cavity. A solenoid valve is installed on the second transposition air pipe close to the first transposition air pipe. The second transposition air pipe is connected to a deflation pipe with a deflation valve. An air supply device is installed at the rear side of the injection molding box, one air outlet of the air supply device is connected to the first air supply pipe, and another air outlet of the air supply device is connected to the second air supply pipe. The second air supply pipe is provided with a solenoid valve, and an elastic air bag is provided between the second air supply pipe and the first transposition air pipe.

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