Resource regeneration injection molding machine for recycling waste plastics and production method of resource regeneration injection molding machine

Abstract

The invention belongs to the technical field of injection molding equipment, and particularly relates to a resource regeneration injection molding machine for recycling waste plastics and a production method thereof.The resource regeneration injection molding machine comprises an injection molding machine table, an injection molding machine body and a forming mechanism, and an ultrasonic quality inspection mechanism used for detecting the density of molten plastics is arranged at the end, close to the injection molding machine body, of a melt injection pipe; a temperature control assembly is arranged at the end, close to the forming mechanism, of the melt injection pipe, an energy storage and exhaust assembly is arranged at the top of the end, close to the forming mechanism, of the injection molding machine body, and the temperature control assembly and the energy storage and exhaust assembly are matched to be used for regularly exhausting gas in the injection molding machine body. Ultrasonic bubble removing mechanisms used for discharging bubbles in melt are arranged on the surface of the injection molding machine table and located on the two sides of the injection molding machine body. According to the invention, the density change of the melt can be monitored in real time, gas in the injection molding machine body can be periodically discharged by using heat exchange as power, meanwhile, an ultrasonic degassing technology is adopted, and the ultrasonic generator can be prevented from being in a high-temperature state for a long time.

Description

Technical Field

[0001] The invention belongs to the technical field of injection molding equipment, and in particular relates to a resource recycling injection molding machine for recycling waste plastics and a production method thereof. Background Art

[0002] Recycling of waste plastics is an important way to achieve resource conservation, environmental protection and promote the development of a circular economy. The most common way is to reuse waste plastics as injection molding materials. The process of recycling waste plastics and using them as injection molding materials involves key steps such as collection, classification, cleaning, crushing, melting and injection molding.

[0003] When using recycled waste plastics as raw materials for injection molding machines, there are several important things to pay attention to:

[0004] First, different types of plastics have different melting points and fluidity. Therefore, when two or more types of plastics are mixed in the reheated plastic raw materials, the quality of the plastics after melting is easily affected, and insufficiently melted parts are likely to appear in the melt, and the density of this part is different from that of other parts. However, the existing injection molding equipment cannot monitor the density change of the melt in real time.

[0005] Second, recycled plastics will release more gas during the heating process. For existing injection molding equipment, the exhaust process is limited to the molten material located on the periphery. The gas existing on the innermost side of the molten material cannot be fully removed, resulting in defects such as burn marks and bubbles. Summary of the invention

[0006] The purpose of the present invention is to provide a resource recycling injection molding machine for recycling waste plastics and a production method thereof, which can monitor the density change of the melt in real time, and can also use heat exchange as power to regularly discharge the gas in the injection molding machine body, while also having ultrasonic degassing technology, and can avoid the ultrasonic generator being in a high temperature state for a long time.

[0007] The technical solution adopted by the present invention is as follows:

[0008] A resource recycling injection molding machine for recycling waste plastics, comprising an injection molding machine platform, an injection molding machine body and a molding mechanism, wherein the molding mechanism is arranged at one end of the injection molding machine platform, the injection molding machine body is arranged on the surface of the injection molding machine platform, one end of the injection molding machine body is connected with a melt injection pipe for injecting melt into a mold inside the molding mechanism, a screw feeder is assembled in rotation inside the injection molding machine body, a rotating mechanism for controlling the rotation of the screw feeder is assembled at one end of the injection molding machine body away from the molding mechanism, and a push mechanism for pushing the screw feeder is assembled at one end of the rotating mechanism away from the injection molding machine body Mechanism, the surface of the injection molding machine body is assembled with a feeding hopper mechanism for feeding plastic particles, the end of the melt injection pipe close to the injection molding machine body is provided with an ultrasonic quality inspection mechanism for detecting the density of the molten plastic, the end of the melt injection pipe close to the molding mechanism is provided with a temperature control component, the top of the injection molding machine body close to the molding mechanism is provided with an energy storage exhaust component, and the temperature control component and the energy storage exhaust component cooperate to regularly discharge the gas inside the injection molding machine body, and the surface of the injection molding machine table and located on both sides of the injection molding machine body are provided with ultrasonic degassing mechanisms for discharging bubbles inside the melt;

[0009] The ultrasonic density meter is used to directly measure the density of the fluid inside the quality inspection tube through the cooperation with the receiving device;

[0010] By utilizing the heat of molten plastic and the detachable structure of copper shell and copper tube, the gas cylinder has an energy storage process. The instantaneous suction force generated when the gas cylinder reaches the limit of energy storage is used to extract the gas inside the injection molding machine.

[0011] It is used to remove bubbles in molten plastic by combining an ultrasonic generator that is in intermittent contact with the melt.

[0012] A heating mechanism for heating plastic particles is fixedly assembled inside the injection molding machine body, a stagnation cavity is opened inside the injection molding machine body near one end of the molding mechanism, a cone plug is integrally provided at one end of the screw feeder located inside the stagnation cavity, and an exhaust duct for exhausting gas is opened at the top of the injection molding machine body near one end of the stagnation cavity.

[0013] A channel valve for changing the flow direction of the molten material is arranged at the connection of the molten material injection pipe corresponding to the ultrasonic quality inspection mechanism, a ball valve core is assembled internally for rotation in the channel valve, a bevel gear 1 is installed at one end of the shaft of the ball valve core extending to the bottom of the channel valve, a motor 1 is fixedly installed on the outer wall of the injection molding machine and located below the channel valve, and a bevel gear 2 meshing with the bevel gear 1 is installed at the output end of the motor 1, a branch pipe is integrally arranged on the top of the channel valve, and a fan-shaped through hole 2 is symmetrically opened inside the branch pipe, a shunt pipe is integrally arranged on the top of the ball valve core, and the shunt pipe is placed inside the branch pipe, and a fan-shaped through hole 1 is symmetrically opened inside the shunt pipe;

[0014] The ultrasonic quality inspection mechanism includes a quality inspection tube connected to the branch pipe, an ultrasonic density meter is fixedly installed on one side of the outer wall of the quality inspection tube, a receiving device and a display are fixedly installed on the other side of the outer wall of the quality inspection tube, and the ultrasonic density meter and the receiving device are used together to detect the density of the molten fluid, and a drawing pipe is fixedly connected to the top of the quality inspection tube, the drawing pipe is in an inverted U shape and a drawing cylinder for collecting molten material samples is connected to the end.

[0015] A heat conduction cavity is provided inside the injection molding machine body near one end of the molding mechanism, and the temperature control assembly includes a copper tube 1, a copper tube 2 and a water storage tank. The copper tube 1 is installed inside the heat conduction cavity, the copper tube 2 is arranged above the copper tube 1, and the side walls of the copper tube 1 and the copper tube 2 close to each other are provided with fins, and a copper shell for guiding heat from the copper tube 1 to the copper tube 2 is assembled between the copper tube 1 and the copper tube 2 through the sliding of the fins, and groove plates are provided on both sides of the fins at the bottom of the copper tube 2, and the outer walls of the two sides of the copper shell are fixedly connected with wall rods penetrating the groove plates, the bottom of the water storage tank is connected with a water pipe, and the water pipe is wound around the outside of the copper tube 2, and the end of the water pipe away from the water storage tank is connected with an elastic air bag, and the elastic air bag is placed on one side of the top of the water storage tank;

[0016] A hook rack is fixedly installed on one side of the water tank, and an elastic airbag is fixedly installed on the inner side of the hook rack, a spring is connected between the top of the elastic airbag and the inner wall of the top of the hook rack, an air hole for exhaust is opened on the top of the elastic airbag, and a slider is symmetrically damped and slidingly assembled on the top of the elastic airbag, and a baffle for blocking the air hole is arranged on the two facing sides of the slider, an inclined groove is opened on the surface of the slider, and an extension rod is integrally arranged on the two sides of the slider away from each other, and a top rod for pressing into the corresponding inclined groove is fixedly arranged on the inner wall of the top of the hook rack, and a wedge-shaped stopper for extruding and contacting with the corresponding extension rod end is fixedly arranged on the inner walls on both sides of the hook rack, and a connecting plate is fixedly arranged on the top of the elastic airbag, and both ends of the connecting plate are fixedly connected with an arm rod 1 and an arm rod 2, the bottom end of the arm rod 1 is connected to the end of the corresponding wall rod, and the end of the arm rod 2 is integrally provided with a gear rod 1.

[0017] The energy storage exhaust assembly includes a wall frame, a lever and an air cylinder. The two wall frames are fixedly installed on the side walls of the injection molding body near the molding mechanism. The top of the wall frame is rotatably installed with a gear 1 meshing with a gear rod 1, and the inner side of the gear 1 is coaxially fixedly assembled with a gear 2. The top of the wall frame is rotatably assembled with a gear 3 meshing with the gear 2, and one side of the gear 1 is coaxially fixedly assembled with a gear 4. The top of the wall frame is lifted and slidably assembled with a gear rod 2 meshing with the gear 4. A bracket is fixedly installed on the top of one end of the injection molding body, and two levers are rotatably assembled on the inner side of the bracket. The two gear rods 2 are connected to one end of the lever away from the transfer point, and the other end of the lever close to the transfer point is elastically and telescopically assembled with a pry bar. The inner walls on both sides of the bracket are elastically rotatably assembled with a baffle rod corresponding to the bottom of the pry bar through a coil spring, and the outer wall on the same side of the pry bar and the baffle rod is fixedly connected with a side rod.

[0018] The air cylinder is fixedly installed on the top of the injection molding machine body, and the top of the air cylinder is fixedly connected with an air intake pipe 1 connected to the exhaust duct, and the interior of the air cylinder is telescopically assembled with a piston member, and the bottom end of the piston member extending out of the air cylinder is fixedly connected with a bottom plate, and a sliding assembly is formed between the bottom plate and the air cylinder through a guide rod and a guide sleeve, and a spring 2 is connected between the bottom plate and the outer wall of the air cylinder, and both ends of the spring 2 are fixedly connected with a ratchet rod, and both ends of the spring 2 are fixedly provided with a top block located on the outside of the ratchet rod, and the outer walls of the two ratchet rods are fixedly connected with a pressure rod;

[0019] The outer walls on both sides of the bracket are fixedly installed with wall shells, and the end of the wall shell close to the ratchet rod is elastically and telescopically assembled with a T-shaped rod for temporarily hooking the side rod, the outer wall of the T-shaped rod away from the wall shell is integrally provided with a wedge-shaped stopper 2 for extrusion contact with the top block, a locking groove is provided on the bottom side of the middle part of the horizontal end of the T-shaped rod, and the bottom of the wall shell is elastically and telescopically assembled with an inner push rod for temporarily pressing into the locking groove, and the side wall of the inner push rod is fixedly connected with a through rod that passes through the side wall of the wall shell.

[0020] The injection molding machine body is provided with sound wave cavities in an array on both sides near the exhaust duct, and an air suction duct and an air supply duct are provided inside the injection molding machine body and above each sound wave cavity. The ultrasonic bubble removal mechanism includes a second motor and an ultrasonic generator. A gearbox is provided at the output end of the second motor, and the output shaft of the second motor is connected to the input end of the gearbox. The output end of the gearbox is connected to a crankshaft. The ultrasonic generators are all slidably assembled inside the corresponding sound wave cavities, and one end of the ultrasonic generator extending out of the sound wave cavity is fixedly connected to a slot rod, and the slot rods on the same side are commonly connected to the corresponding crankshaft. A straight slot is provided on the outer wall of the ultrasonic generator, and a row of teeth is provided at the end of the straight slot away from the slot rod.

[0021] Gear five, gear six and a transmission rod are rotatably installed inside the injection molding machine body and below the acoustic wave cavity. The gear five is detachably meshed with the row of teeth, the gear six is ​​meshed with the gear five, and the gear six is ​​meshed with the transmission rod through a helical gear set for transmission. A gear seven is installed on the end of the transmission rod away from the gear six. A ring plate is fixedly installed on the end of the acoustic wave cavity near the screw feeder, and a fixed ring is assembled with a ring plate on the side wall of the ring plate through a ring-distributed rotating core rod. A sealing block is rotatably assembled between the ring plate and the fixed ring, and the sealing block and the rotating core rod constitute a rotating assembly. A guide rod is fixedly connected to the side wall of the sealing block edge. A movable ring body is movably sleeved on the outer edge of the fixed ring, and a local gear tooth meshing with gear seven is arranged on one side of the outer wall of the movable ring body. A bevel groove two for the corresponding guide rod to pass through is arranged in a ring array on the outer edge of the movable ring body. When the sealing block is aggregated, it is used to block the acoustic wave cavity.

[0022] An air pump generator body is installed on the top of the gearbox, and the input shaft of the air pump generator body is drivingly connected to the output shaft of motor 2. The air inlet end of the air pump generator body is connected to suction pipe 2, and suction pipe 2 is connected to the exhaust duct on the same side.

[0023] A resource recycling production method for recycling waste plastics, the specific steps are as follows:

[0024] Step 1: Collection and classification. There are many types of waste plastics. Different types of plastics have different processing properties and uses. Therefore, effective classification of waste plastics is a key step in achieving high-quality recycling.

[0025] Step 2: Cleaning and crushing. Before waste plastics are processed, they need to be cleaned to remove surface pollutants. After cleaning, the waste plastics need to be crushed to reduce them to a certain particle size for subsequent melting and reshaping.

[0026] Step 3: Melting and re-granulation. The broken plastic fragments will go through a melting process and turn into a liquid or semi-liquid state. The melted plastic will be made into small particles through a granulator, i.e. recycled plastic particles.

[0027] Step 4: Particle screening and re-crushing. Before feeding into the barrel of the injection molding machine, the plastic particles are screened to separate the smaller and larger plastic particles, and then re-melted and re-granulated;

[0028] Step 5: Injection molding: After being dried and preheated, the recycled plastic particles are fed into the barrel of the injection molding machine, heated to a fluid state, and then injected into the mold to form a product of a predetermined shape;

[0029] Step 6: Considering quality and environmental protection, the molded products must be quality inspected, and the strength, burrs, pores, etc. of the finished products must be inspected. At the same time, environmental protection and safety standards must be met.

[0030] The technical effects achieved by the present invention are:

[0031] (1) The present invention can directly obtain the density of the molten plastic during the injection molding operation, and can also promptly obtain the quality of the molten waste plastic, which is convenient for dealing with situations such as insufficient melting and poor fluidity of the recycled plastic, and is convenient for real-time monitoring of the density change of the melt, so as to promptly discover and eliminate defects.

[0032] (2) The present invention utilizes the heat of molten plastic and cooperates with a detachable structure of a copper shell and a copper tube to enable the elastic airbag to have a repeated expansion process, thereby enabling the gas cylinder to have an energy storage process. The instantaneous suction force generated when the gas cylinder energy storage reaches its limit is used to extract the gas inside the injection molding machine. The whole process uses heat exchange as the main power, and there is no need to use additional timing devices and electrical equipment. The work of regularly discharging the gas inside the injection molding machine can be achieved, thereby solving the problem that recycled plastics are prone to release more gas during the heating process, improving the exhaust effect of the injection molding machine, and avoiding defects such as burn marks and bubbles.

[0033] (3) In the present invention, the ultrasonic generators located on both sides can remove bubbles in the molten plastic by generating ultrasonic waves when in contact with the molten material, thereby realizing ultrasonic degassing technology and further improving the exhaust effect of the injection molding machine; in addition, each ultrasonic generator will intermittently contact the molten material in the injection molding machine body, thereby avoiding a situation where a single ultrasonic generator is in contact with the molten material for a long time.

[0034] (4) In the present invention, when the ultrasonic generator penetrates deep into the injection molding machine, each sealing block opens and provides a hole for the ultrasonic generator to pass through. When the ultrasonic generator is far away from the injection molding machine, each sealing block can be closed in time after the ultrasonic generator exits, so as to avoid leakage of molten material. In addition, the air pump generator body follows the operation of motor 2, and the hot air inside the exhaust duct can be extracted through the suction pipe 2 to cool the ultrasonic generator and avoid the ultrasonic generator being in a high temperature state for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 is an integrated structural diagram of an injection molding machine provided by an embodiment of the present invention;

[0036] Figure 2 is an integrated structural diagram of an injection molding machine provided by an embodiment of the present invention;

[0037] Figure 3 is a cross-sectional structural diagram of an injection molding machine body provided by an embodiment of the present invention;

[0038] Figure 4 It is a combined cross-sectional structural diagram of a molten material injection pipe and an ultrasonic quality inspection mechanism provided in an embodiment of the present invention;

[0039] Figure 5 yes Figure 4 The local enlarged structure diagram at A in the middle;

[0040] Figure 6 is a disassembled diagram of the integrated structure of the temperature control component and the energy storage exhaust component provided in an embodiment of the present invention;

[0041] Figure 7 is an integrated cross-sectional view of a hook frame and an elastic airbag provided by an embodiment of the present invention;

[0042] Figure 8 is a structural disassembly diagram of an energy storage exhaust assembly provided by an embodiment of the present invention;

[0043] Fig. 9 yes Figure 8 The local enlarged structure diagram at B in the middle;

[0044] Fig.10 is a structural diagram of an ultrasonic debubbling mechanism provided in an embodiment of the present invention;

[0045] Fig.11 is a structural diagram of a single ultrasonic generator provided by an embodiment of the present invention located in an injection molding machine body;

[0046] Fig.12 is a disassembled diagram of the internal structure of a single acoustic wave cavity provided by an embodiment of the present invention;

[0047] Fig.13 It is a flow chart of the resource recycling production method provided by an embodiment of the present invention.

[0048] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0049] 1. Injection molding machine;

[0050] 2. Injection molding machine body; 201. Melt injection pipe; 202. Channel valve; 203. Heating mechanism; 204. Stagnation chamber; 205. Screw feeder; 206. Cone plug; 207. Exhaust channel; 208. Ball valve core; 209. Diverter pipe; 210. Fan-shaped through hole 1; 211. Bevel gear 1; 212. Motor 1; 213. Bevel gear 2; 214. Branch pipe; 215. Fan-shaped through hole 2; 216. Heat transfer chamber; 217. Sound wave chamber; 218. Air extraction channel; 219. Air supply channel;

[0051] 3. Rotating mechanism;

[0052] 4. Pushing organization;

[0053] 5. Feeding hopper mechanism;

[0054] 6. Molding mechanism;

[0055] 7. Ultrasonic quality inspection mechanism; 701. Quality inspection tube; 702. Extraction tube; 703. Ultrasonic density meter; 704. Receiving device; 705. Display; 706. Extraction tube;

[0056] 8. Temperature control assembly; 801. Copper tube 1; 802. Copper tube 2; 803. Copper shell; 804. Wall rod; 805. Groove plate; 806. Water pipe; 807. Water storage tank; 808. Water supply pipe; 809. Hook frame; 810. Elastic airbag; 811. Spring 1; 812. Flaps; 813. Slider; 814. Inclined slot 1; 815. Push rod; 816. Extension rod; 817. Wedge block 1; 818. Arm rod 1; 819. Arm rod 2; 820. Gear rod 1;

[0057] 9. Energy storage exhaust assembly; 901. Wall rack; 902. Gear 1; 903. Gear 2; 904. Gear 3; 905. Gear 4; 906. Gear rod 2; 907. Bracket; 908. Lever; 909. Pry bar; 910. Stop bar; 911. Side bar; 912. Air cylinder; 913. Piston; 914. Intake pipe 1; 915. Bottom plate; 916. Spring 2; 917. Ratchet bar; 918. Top block; 919. Pressure rod; 920. Wall shell; 921. T-shaped belt rod; 922. Wedge-shaped stop block 2; 923. Lock groove; 924. Through rod;

[0058] 10. Ultrasonic bubble removal mechanism; 1001. Motor 2; 1002. Gearbox; 1003. Crankshaft; 1004. Slot rod; 1005. Ultrasonic generator; 1006. Straight slot; 1007. Row of teeth; 1008. Gear 5; 1009. Gear 6; 1010. Transmission rod; 1011. Live ring body; 1012. Gear 7; 1013. Partial gear teeth; 1014. Inclined slot 2; 1015. Ring plate; 1016. Fixed ring; 1017. Sealing block; 1018. Guide rod; 1019. Air pump generator body; 1020. Intake pipe 2. DETAILED DESCRIPTION

[0059] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0060] like Figure 1-12As shown, a resource recycling injection molding machine for recycling waste plastics includes an injection molding machine platform 1, an injection molding machine body 2 and a molding mechanism 6. The molding mechanism 6 is arranged at one end of the injection molding machine platform 1, and the injection molding machine body 2 is arranged on the surface of the injection molding machine platform 1. One end of the injection molding machine body 2 is connected with a melt injection pipe 201 for injecting melt into the internal mold of the molding mechanism 6. A screw feeder 205 is assembled inside the injection molding machine body 2. A rotating mechanism 3 for controlling the rotation of the screw feeder 205 is assembled at one end of the injection molding machine body 2 away from the molding mechanism 6. The rotating mechanism 3 is away from the injection molding machine body 2. A pushing mechanism 4 for pushing the screw feeder 205 is assembled at one end of the injection molding body 2, a feeding hopper mechanism 5 for feeding plastic particles is assembled on the surface of the injection molding body 2, a heating mechanism 203 for heating the plastic particles is fixedly assembled inside the injection molding body 2, a stagnation cavity 204 is opened inside the end of the injection molding body 2 close to the molding mechanism 6, a conical plug 206 is integrally provided at one end of the screw feeder 205 located inside the stagnation cavity 204, and an exhaust duct 207 for exhausting gas is opened at the top of the injection molding body 2 close to the stagnation cavity 204.

[0061] According to the above structure, after the plastic particles are put into the feeding hopper mechanism 5, they immediately enter the interior of the injection molding machine body 2. The rotating mechanism 3 is used to control the rotation of the screw feeder 205. The plastic particles are transformed into a molten state after being heated by the heating mechanism 203. During the transportation by the screw feeder 205, the gas in the molten material will be discharged from the exhaust duct 207, and the molten material will gather inside the stagnant cavity 204. When it needs to be injected into the molding mechanism 6, the pushing mechanism 4 is used to make the cone plug 206 push the molten material in the stagnant cavity 204 and inject it into the molding mechanism 6, thereby completing the plastic injection molding work. The above processes are all existing technologies and will not be described in detail here.

[0062] See attached Figure 1-Figure 3 An ultrasonic quality inspection mechanism 7 for detecting the density of molten plastic is provided at one end of the melt injection pipe 201 close to the injection molding machine body 2, a temperature control component 8 is provided at one end of the melt injection pipe 201 close to the molding mechanism 6, an energy storage exhaust component 9 is provided at the top of the injection molding machine body 2 close to the molding mechanism 6, and the temperature control component 8 and the energy storage exhaust component 9 are used to regularly discharge the internal gas of the injection molding machine body 2, and ultrasonic debubble mechanisms 10 for discharging bubbles inside the melt are provided on the surface of the injection molding machine 1 and on both sides of the injection molding machine body 2.

[0063] Embodiment 1:

[0064] See attached Figure 4-Figure 5A channel valve 202 for changing the flow direction of the molten material is provided at the connection of the molten material injection pipe 201 corresponding to the ultrasonic quality inspection mechanism 7, and a ball valve core 208 is assembled internally for rotation, and a bevel gear 211 is installed at one end of the ball valve core 208 shaft extending to the bottom of the channel valve 202, and a motor 212 is fixedly installed on the outer wall of the injection molding body 2 and located below the channel valve 202, and a bevel gear 213 meshing with the bevel gear 211 is installed at the output end of the motor 212, a branch pipe 214 is integrally provided on the top of the channel valve 202, and a fan-shaped through hole 215 is symmetrically opened inside the branch pipe 214, and a diverter pipe 209 is integrally provided on the top of the ball valve core 208, and the diverter pipe 209 is placed inside the branch pipe 214, and a fan-shaped through hole 210 is symmetrically opened inside the diverter pipe 209.

[0065] See attached Figure 4-Figure 5 The ultrasonic quality inspection mechanism 7 includes a quality inspection tube 701 connected to the branch pipe 214, an ultrasonic density meter 703 is fixedly installed on one side of the outer wall of the quality inspection tube 701, a receiving device 704 and a display 705 are fixedly installed on the other side of the outer wall of the quality inspection tube 701, and the ultrasonic density meter 703 and the receiving device 704 are used together to detect the density of the molten fluid, and a suction tube 702 is fixedly connected to the top of the quality inspection tube 701. The suction tube 702 is in an inverted U shape and a suction cylinder 706 for collecting molten material samples is connected to the end.

[0066] According to the above structure, during the normal use of the injection molding machine, the molten material injection pipe 201 is in a flowing state. In order to ensure the injection molding quality, the molten plastic melting quality detection work is regularly started. First, the motor 1 212 is started, and the ball valve core 208 is driven to rotate through the meshing of the bevel gear 1 211 and the bevel gear 2 213. Figure 4 It can be seen that after the ball valve core 208 rotates 90 degrees, the molten material injection pipe 201 is in a closed state. At this time, the fan-shaped through hole 1 210 just coincides with the fan-shaped through hole 215, the quality inspection tube 701 is connected to the branch pipe 214, and the molten plastic directly flows into the quality inspection tube 701. During the flow process, the density of the internal fluid can be directly measured through the cooperation of the ultrasonic density meter 703 and the receiving device 704. The above process can directly know the density of the plastic after melting, and thus timely know the quality of the waste plastic after melting, so as to deal with the situation of insufficient melting of recycled plastic and poor fluidity, and facilitate real-time monitoring of product quality, and timely detection and elimination of defects.

[0067] The working principle of the present invention is as follows: during the normal use of the injection molding machine, the molten material injection pipe 201 is in a flowing state. In order to ensure the injection molding quality, the molten plastic molten quality detection work is regularly started. First, the motor 1 212 is started, and the ball valve core 208 is driven to rotate through the meshing of the bevel gear 1 211 and the bevel gear 2 213. Figure 4It can be seen that after the ball valve core 208 rotates 90 degrees, the molten material injection pipe 201 is in a closed state. At this time, the fan-shaped through hole 1 210 just coincides with the fan-shaped through hole 215, the quality inspection tube 701 is connected with the branch pipe 214, and the molten plastic flows directly into the quality inspection tube 701. During the flow process, the density of the fluid inside the quality inspection tube 701 can be directly measured through the cooperation of the ultrasonic density meter 703 and the receiving device 704. The sample fluid in this process will eventually flow into the extraction cylinder 706 through the extraction tube 702. After the quality inspection is completed, the ball valve core 208 can be reset by controlling the motor 1 212.

[0068] Embodiment 2:

[0069] See attached Figure 4 , Figure 6-Figure 7 The injection molding machine body 2 is provided with a heat conduction cavity 216 at one end thereof near the molding mechanism 6. The temperature control assembly 8 comprises a copper tube 1 801, a copper tube 2 802 and a water storage tank 807. The copper tube 1 801 is installed inside the heat conduction cavity 216. The copper tube 2 802 is arranged above the copper tube 1 801. The side walls of the copper tube 1 801 and the copper tube 2 802 close to each other are provided with fins. A copper tube 1 801 and the copper tube 2 802 are slidingly assembled with a copper tube 802 for guiding heat from the copper tube 1 801 to the copper tube 2 802. Shell 803, both sides of the bottom fins of copper tube 802 are provided with groove plates 805, and the outer walls of both sides of the copper shell 803 are fixedly connected with wall rods 804 that penetrate the groove plates 805, the bottom of the water tank 807 is connected with a water pipe 806, and the water pipe 806 is wound around the outside of copper tube 802, and the end of the water pipe 806 away from the water tank 807 is connected with an elastic air bag 810, and the elastic air bag 810 is placed on one side of the top of the water tank 807, and the height position of the elastic air bag 810 is higher than the top of the water tank 807;

[0070] See attached Figure 6-Figure 7A hook frame 809 is fixedly installed on one side of the water tank 807, and an elastic airbag 810 is fixedly installed on the inner side of the hook frame 809. A spring 811 is connected between the top of the elastic airbag 810 and the inner wall of the top of the hook frame 809. An air hole for exhaust is opened on the top of the elastic airbag 810, and a slider 813 is symmetrically assembled on the top of the elastic airbag 810. A baffle 812 for blocking the air hole is provided on the opposite side of the two sliders 813. An inclined groove 814 is provided on the surface of the slider 813. The two sliders 813 are separated from each other. An extension rod 816 is integrally provided on both sides, and a top rod 815 for pressing into the corresponding inclined groove 814 is fixedly provided on the inner wall of the top of the hook frame 809, and a wedge-shaped stopper 817 for extruding and contacting with the end of the corresponding extension rod 816 is fixedly provided on the inner walls on both sides of the hook frame 809. A connecting plate is fixedly provided on the top of the elastic airbag 810, and both ends of the connecting plate are fixedly connected with an arm rod 1 818 and an arm rod 2 819, the bottom end of the arm rod 1 818 is connected to the end of the corresponding wall rod 804, and the end of the arm rod 2 819 is integrally provided with a gear rod 1 820.

[0071] According to the above structure, during the normal use of the injection molding machine, the molten plastic is injected into the molding mechanism 6 through the melt injection pipe 201, and the heat brought by the circulation of the molten plastic will be conducted to the copper tube 1 801. When the copper shell 803 is in contact with the copper tube 1 801 and the copper tube 2 802 at the same time, the heat energy will be conducted to the copper tube 2 802 through the copper shell 803 at the same time. At this time, the water pipe 806 wrapped around the outer wall of the copper tube 2 802 will absorb the heat, and the water in the water pipe 806 will be directly heated and generate a large amount of gas. Under the action of water pressure and water flow, the gas will climb along the water pipe 806 and finally gather in the elastic airbag 810 and the inside of the water tank 807. As the internal air pressure increases, the elastic airbag 810 expands and squeezes the spring. The connecting plate will carry arm one 818 and arm two 819 upward together. When the elastic airbag 810 expands to the limit position, the top rod 815 will press into the inclined groove one 814 and come into contact with the inclined surface in the groove. The two sliders 813 will carry the flaps 812 away from each other. The air hole on the top of the elastic airbag 810 will open and the internal gas will be quickly discharged. According to the principle of the communicating vessel, the liquid levels at both ends of the water pipe 806 will eventually reach the same height and stabilize under the rapid movement of gas and liquid. When the elastic airbag 810 is restored to its original shape under the elastic force of the spring one 811, the flaps 812 on both sides will approach each other and block the air hole again through the extrusion contact between the extension rod 816 and the wedge-shaped stopper one 817.

[0072] Among them, when the arm 1 818 moves upward, the copper shell 803 will move upward together and will quickly separate from the copper tube 1 801, and the copper tube 1 801 will stop transferring heat to the copper tube 2 802, and the copper tube 2 802 will immediately enter the cooling process. The effect of the water heating up and generating gas in the water pipe 806 will be slowed down. When the elastic airbag 810 expands to the limit and deflates, the process of the water volatilizing into gas changes from violent to slow. Under the elastic force of the compressed spring 1 811, the connecting plate, together with the arm 1 818 and the arm 2 819, quickly moves down and resets, and the copper shell 803 contacts the copper tube 1 801 again. The water in the water pipe 806 will re-enter the heating process after a period of time, and so on and so forth, achieving the effect of the arm 1 818 and the arm 2 819 moving up and down reciprocatingly.

[0073] See attached Figure 6 , Figure 8-Figure 9 The energy storage exhaust assembly 9 includes a ledge 901, a lever 908 and an air cylinder 912. The two ledges 901 are fixedly mounted on the side wall of the injection molding machine body 2 near the molding mechanism 6. The top of the ledge 901 is rotatably mounted with a gear 902 meshing with the gear rod 820, and the inner side of the gear 902 is coaxially fixedly assembled with a gear 903. The top of the ledge 901 is rotatably assembled with a gear 904 meshing with the gear 903, and one side of the gear 902 is coaxially fixedly assembled with a gear 905. The top of the ledge 901 is a lifting sliding assembly. A gear rod 906 meshing with a gear rod 905 is provided, a bracket 907 is fixedly installed on the top of one end of the injection molding body 2, and two levers 908 are rotatably assembled on the inner side of the bracket 907, the two gear rods 906 are connected to the end of the lever 908 away from the transfer point, and the other end of the lever 908 close to the transfer point is elastically and telescopically assembled with a pry bar 909, and a stop bar 910 is elastically rotatably assembled on the inner walls on both sides of the bracket 907 corresponding to the bottom of the pry bar 909 through a coil spring, and the outer walls on the same side of the pry bar 909 and the stop bar 910 are fixedly connected with a side bar 911.

[0074] See attached Figure 8-Figure 9 The air cylinder 912 is fixedly installed on the top of the injection molding machine body 2, and the top of the air cylinder 912 is fixedly connected with an air intake pipe 914 connected to the exhaust duct 207. The interior of the air cylinder 912 is telescopically assembled with a piston member 913, and the bottom end of the piston member 913 extending out of the air cylinder 912 is fixedly connected with a bottom plate 915, and a sliding assembly is formed between the bottom plate 915 and the air cylinder 912 through a guide rod and a guide sleeve, and a spring 916 is connected between the bottom plate 915 and the outer wall of the air cylinder 912, and both ends of the spring 916 are fixedly connected with a ratchet rod 917, and the end of the blocking rod 910 can be detachably pressed into the tooth groove of the ratchet rod 917, and both ends of the spring 916 are fixedly provided with a top block 918 on the outside of the ratchet rod 917, and the outer walls of the two ratchet rods 917 are fixedly connected with a pressure rod 919;

[0075] See attached Figure 8-Figure 9 The outer walls on both sides of the bracket 907 are fixedly installed with wall shells 920, and the end of the wall shell 920 close to the ratchet rod 917 is elastically and telescopically assembled with a T-shaped rod 921 for temporarily hooking the side rod 911, and the T-shaped rod 921 is away from the outer wall of the wall shell 920 and is integrally provided with a wedge-shaped stopper 922 for extrusion contact with the top block 918. A locking groove 923 is provided on the bottom side of the middle part of the horizontal end of the T-shaped rod 921, and the bottom of the wall shell 920 is elastically and telescopically assembled with an inner push rod for temporarily pressing into the locking groove 923, and the side wall of the inner push rod is fixedly connected with a through rod 924 that passes through the side wall of the wall shell 920.

[0076] According to the above structure, during the upward movement of the arm 2 819, since the toothed bar 1 820 is meshed with the gear 1 902, the gear 1 902 rotates together with the gear 2 903, and since the gear 2 903 is meshed with the gear 3 904, the gear 3 904 rotates together with the gear 4 905, and the toothed bar 2 906 eventually moves straight upward, and the lever 908 deflects immediately. Since the end of the blocking rod 910 is pressed into the tooth groove of the ratchet rod 917, The ratchet rod 917 cannot move downward but can only move upward, therefore, the pry bar 909 at the end of the lever 908 will be squeezed and contacted with the tooth surface of the ratchet rod 917, and the pry bar 909 will be retracted into the housing at the end of the lever 908; when the second arm 819 moves downward, the pry bar 909 will pry the ratchet rod 917 upward, and in the process of the reciprocating up and down movement of the second arm 819, the bottom plate 915 will carry the piston 913 upward to penetrate into the air cylinder 912 and compress the second spring 916;

[0077] When the bottom plate 915 moves up and approaches the limit position, the top block 918 is squeezed and contacted with the wedge-shaped stopper 922, and the T-shaped belt rod 921 is retracted into the wall shell 920. One end of the inner push rod will be pushed into the locking groove 923 and temporarily lock the T-shaped belt rod 921. In this process, the T-shaped belt rod 921 will hook the side rod 911 and carry the pry bar 909 and the stop rod 910 away from the ratchet rod 917. The ratchet rod 917 will eventually be in a free state, and the piston member 913 will move downward quickly under the elastic force of the spring 916. Instantaneous suction will be generated inside the air cylinder 912. Finally, the gas stagnant in the injection molding machine body 2 will be sucked out by the suction pipe 914 under this suction.

[0078] In the above process, the heat of the molten plastic is utilized, and the copper shell 803 and the copper tube 801 are detachable, so that the elastic airbag 810 has a repeated expansion process, thereby enabling the gas cylinder 912 to have an energy storage process, and utilizing the instantaneous suction force generated when the energy storage of the gas cylinder 912 reaches its limit to extract the gas inside the injection molding machine body 2. The whole process utilizes heat exchange as the main power, and there is no need to use additional timing devices and electrical equipment. The work of regularly discharging the gas inside the injection molding machine body 2 can be realized, thereby solving the problem that recycled plastics are prone to release more gas during the heating process, improving the exhaust effect of the injection molding machine, and avoiding defects such as burn marks and bubbles.

[0079] The working principle of the present invention is as follows: molten plastic is injected into the molding mechanism 6 through the melt injection pipe 201, and the heat brought by the circulation of the molten plastic will be conducted to the copper tube 1 801. When the copper shell 803 is in contact with the copper tube 1 801 and the copper tube 2 802 at the same time, the heat energy will be conducted to the copper tube 2 802 through the copper shell 803 at the same time. At this time, the water pipe 806 wrapped around the outer wall of the copper tube 2 802 will absorb the heat, and the water in the water pipe 806 will be directly heated and generate a large amount of gas. Under the action of water pressure and water flow, the gas will climb along the water pipe 806 and eventually gather in the elastic airbag 810 and the water tank 807. As the internal air pressure increases, the elastic airbag 810 expands and squeezes the spring 1 811, and the connecting plate will carry the arm 1 818 and the arm 2 819 to move upward together. When the elastic airbag 810 expands to the limit position, the push rod 815 will press into the inclined groove 1 814 and come into extrusion contact with the inclined surface in the groove. , the two sliders 813 will carry the flaps 812 away from each other, the air holes on the top of the elastic airbag 810 will open and the internal gas will be quickly discharged; among them, when the arm 1 818 moves up, the copper shell 803 will move up together and will quickly separate from the copper tube 1 801, and the copper tube 1 801 will stop transferring heat to the copper tube 2 802, and the copper tube 2 802 will immediately enter the cooling process, and the effect of the water in the water pipe 806 heating up and generating gas will be slowed down. When the elastic airbag 810 expands to the limit and deflates, the process of water volatilizing into gas changes from violent to slow. Under the elastic force of the spring 1 811 in the compressed state, the connecting plate, the arm 1 818 and the arm 2 819 will quickly move down and reset, and the copper shell 803 will contact the copper tube 1 801 again. After a period of time, the water in the water pipe 806 will re-enter the heating process, and this reciprocating movement of the arm 1 818 and the arm 2 819 is achieved.

[0080] During the upward movement of arm 2 819, since gear rod 1 820 is meshed with gear 1 902, gear 1 902 rotates with gear 2 903, and since gear 2 903 is meshed with gear 3 904, gear 3 904 rotates with gear 4 905, gear rod 2 906 eventually moves straight upward, lever 908 deflects, and the end of stop rod 910 presses into the tooth groove of ratchet rod 917, causing the ratchet to rotate. Rod 917 cannot move downward but can only move upward, therefore, the pry bar 909 at the end of lever 908 will be in compression contact with the tooth surface of ratchet rod 917, and the pry bar 909 will be retracted into the housing at the end of lever 908; when the second arm 819 moves downward, the pry bar 909 will pry the ratchet rod 917 upward, and in the process of the second arm 819 moving up and down, the bottom plate 915 will carry the piston 913 upward and deep into the air cylinder 912 and compress the second spring 916;

[0081] When the bottom plate 915 moves up and approaches the limit position, the top block 918 is squeezed and contacted with the wedge-shaped stopper 922, and the T-bar rod 921 is retracted into the wall shell 920. One end of the inner push rod will be pushed into the locking groove 923 and temporarily lock the T-bar rod 921. In this process, the T-bar rod 921 will hook the side rod 911 and carry the pry bar 909 and the stop bar 910 away from the ratchet rod 917. The ratchet rod 917 will eventually be in a free state, and the piston member 913 will move downward rapidly under the elastic force of the spring 916. Instantaneous suction will be generated inside the air cylinder 912. Finally, the gas stagnant in the injection molding machine body 2 will be drawn out by the suction pipe 914 under this suction.

[0082] Embodiment three:

[0083] See attached Figure 10-12 The injection molding machine body 2 is provided with an array of acoustic wave cavities 217 on both sides of the interior near the exhaust duct 207, and an air extraction duct 218 and an air supply duct 219 are provided inside the injection molding machine body 2 and above each acoustic wave cavity 217. The ultrasonic bubble removal mechanism 10 includes a second motor 1001 and an ultrasonic generator 1005. A gearbox 1002 is provided at the output end of the second motor 1001, and the output shaft of the second motor 1001 is connected to the input end of the gearbox 1002. The gearbox 10 The output end of 02 is connected to a crankshaft 1003, and the ultrasonic generator 1005 is slidably assembled inside the corresponding sound wave cavity 217, and one end of the ultrasonic generator 1005 extending out of the sound wave cavity 217 is fixedly connected to a slot rod 1004, and the slot rods 1004 located on the same side are connected to the corresponding crankshaft 1003 together, and the outer wall of the ultrasonic generator 1005 is provided with a straight groove 1006, and the end of the straight groove 1006 away from the slot rod 1004 is provided with a row of teeth 1007;

[0084] See attached Figure 10-12, gear five 1008, gear six 1009 and transmission rod 1010 are rotatably installed inside the injection molding body 2 and below the acoustic wave cavity 217, gear five 1008 is detachably meshed with the row of teeth 1007, gear six 1009 is meshed with gear five 1008, gear six 1009 and transmission rod 1010 are meshed and transmitted through a helical gear set, gear seven 1012 is installed at the end of the transmission rod 1010 away from gear six 1009, and a ring plate 1015 is fixedly installed at one end of the acoustic wave cavity 217 near the screw feeder 205, and the side wall of the ring plate 1015 is connected and assembled through a circularly distributed rotating rod There is a fixed ring 1016, and a sealing block 1017 is provided in a circular distributed rotation assembly between the ring plate 1015 and the fixed ring 1016, and the sealing block 1017 and the rotating rod constitute a rotation assembly, and the side wall of the edge of the sealing block 1017 is fixedly connected with a guide rod 1018, and the outer edge of the fixed ring 1016 is movably sleeved with a movable ring body 1011, and one side of the outer wall of the movable ring body 1011 is provided with a local gear tooth 1013 meshing with the gear seven 1012, and the outer edge of the movable ring body 1011 is provided with a circular array of inclined grooves 1014 for the corresponding guide rods 1018 to pass through, and the sealing block 1017 is used to block the sound wave cavity 217 when it is aggregated;

[0085] See attached Figure 10-12 An air pump generator body 1019 is installed on the top of the gearbox 1002, and the input shaft of the air pump generator body 1019 is drivingly connected to the output shaft of the motor 1001. The air inlet end of the air pump generator body 1019 is connected to the air intake pipe 1020, and the air intake pipe 1020 is connected to the exhaust duct 218 on the same side.

[0086] According to the above structure, the ultrasonic generators 1005 located on both sides can remove bubbles in the molten plastic by generating ultrasonic waves when in contact with the molten material, thereby realizing ultrasonic degassing technology. When the motor 1001 is working, the crankshaft 1003 can be driven to rotate through the gearbox 1002, and there is relative motion between each node of the crankshaft 1003 and the slot rod 1004, thereby finally realizing reciprocating linear motion of each ultrasonic generator 1005. Fig.10 As shown, each ultrasonic generator 1005 will intermittently contact the molten material in the injection molding machine body 2 to avoid a situation where a single ultrasonic generator 1005 is in contact with the molten material for a long time;

[0087] When the ultrasonic generator 1005 moves in the exhaust passage 207, a part of the gear 5 1008 is placed in the straight groove 1006, and meshes with the row of teeth 1007 when the ultrasonic generator 1005 moves to the specified position. As the ultrasonic generator 1005 moves, the gear 5 1008 rotates, and the gear 6 1009 meshes with the gear 5 1008, and the gear 6 1009 is driven by the transmission rod 1010, and finally the gear 7 1012 is driven to rotate. Since the gear 7 1012 meshes with the local gear teeth 1013, the movable ring The body 1011 rotates a certain angle, and because the guide rod 1018 on the edge of the sealing block 1017 penetrates the second inclined groove 1014, each sealing block 1017 is finally rotated with the rotating rod as the center of the circle. When the ultrasonic generator 1005 moves along the exhaust channel 207 into the injection molding machine body 2, each sealing block 1017 opens and provides a hole position for the ultrasonic generator 1005 to penetrate. When the ultrasonic generator 1005 moves away from the injection molding machine body 2 along the exhaust channel 207, each sealing block 1017 is closed in time after the ultrasonic generator 1005 exits to avoid leakage of molten material.

[0088] When the motor 1001 is working, the air pump generator body 1019 is driven by the motor 1001 at the same time. The working shaft of the air pump generator body 1019 rotates and continuously generates positive and negative pressure inside the air pump generator body 1019. Finally, the hot air inside the exhaust duct 207 can be extracted through the intake pipe 1020, and the outside air will enter the exhaust duct 207 through the air supply duct 219, so as to cool down the ultrasonic generator 1005.

[0089] The working principle of the present invention is as follows: the motor 1001 works, drives the crankshaft 1003 to rotate through the gearbox 1002, and each ultrasonic generator 1005 moves back and forth in a straight line. Fig.10As shown, each ultrasonic generator 1005 will intermittently contact the molten material in the injection molding machine body 2. When the ultrasonic generator 1005 moves in the exhaust duct 207 and reaches a specified position, the gear 5 1008 meshes with the row of teeth 1007. As the ultrasonic generator 1005 moves, the gear 5 1008 will rotate, and the gear 6 1009 meshes with the gear 5 1008, and the gear 6 1009 is driven by the transmission rod 1010, and finally the gear 7 1012 is driven to rotate. Since the gear 7 1012 meshes with the local gear teeth 1013, the active The ring body 1011 rotates a certain angle, and because the guide rod 1018 on the edge of the sealing block 1017 passes through the second inclined groove 1014, each sealing block 1017 finally rotates with the rotating rod as the center of the circle; when the ultrasonic generator 1005 moves along the exhaust duct 207 into the injection molding body 2, each sealing block 1017 opens and provides a hole for the ultrasonic generator 1005 to pass through. When the ultrasonic generator 1005 moves along the exhaust duct 207 away from the inside of the injection molding body 2, each sealing block 1017 is closed in time after the ultrasonic generator 1005 exits to avoid leakage of the molten material.

[0090] A resource recycling production method for recycling waste plastics, the specific steps are as follows:

[0091] Step 1: Collection and classification. There are many types of waste plastics. Different types of plastics have different processing properties and uses. Therefore, effective classification of waste plastics is a key step in achieving high-quality recycling.

[0092] Step 2: Cleaning and crushing. Before waste plastics are processed, they need to be cleaned to remove surface pollutants. After cleaning, the waste plastics need to be crushed to reduce them to a certain particle size for subsequent melting and reshaping.

[0093] Step 3: Melting and re-granulation. The broken plastic fragments will go through a melting process and turn into a liquid or semi-liquid state. The melted plastic will be made into small particles through a granulator, i.e. recycled plastic particles.

[0094] Step 4: Particle screening and re-crushing. Before feeding into the barrel of the injection molding machine, the plastic particles are screened to separate the smaller and larger plastic particles, and then re-melted and re-granulated;

[0095] Step 5: Injection molding: After being dried and preheated, the recycled plastic particles are fed into the barrel of the injection molding machine, heated to a fluid state, and then injected into the mold to form a product of a predetermined shape;

[0096] Step 6: Considering quality and environmental protection, the molded products must be quality inspected, and the strength, burrs, pores, etc. of the finished products must be inspected. At the same time, environmental protection and safety standards must be met.

[0097] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A resource recycling injection molding machine for recycling waste plastics, comprising an injection molding machine (1), an injection molding machine body (2) and a molding mechanism (6), wherein the molding mechanism (6) is arranged at one end of the injection molding machine (1), the injection molding machine body (2) is arranged on the surface of the injection molding machine (1), one end of the injection molding machine body (2) is connected to a molten material injection pipe (201) for injecting molten material into an internal mold of the molding mechanism (6), a screw feeder (205) is assembled in rotation inside the injection molding machine body (2), a rotating mechanism (3) for controlling the rotation of the screw feeder (205) is assembled at one end of the injection molding machine body (2) away from the molding mechanism (6), a pushing mechanism (4) for pushing the screw feeder (205) is assembled at one end of the rotating mechanism (3) away from the injection molding machine body (2), and a feeding hopper mechanism (5) for feeding plastic particles is assembled on the surface of the injection molding machine body (2), characterized in that: An ultrasonic quality inspection mechanism (7) for detecting the density of molten plastic is arranged at one end of the molten material injection pipe (201) close to the injection molding machine body (2), a temperature control component (8) is arranged at one end of the molten material injection pipe (201) close to the molding mechanism (6), an energy storage exhaust component (9) is arranged at the top of one end of the injection molding machine body (2) close to the molding mechanism (6), and the temperature control component (8) and the energy storage exhaust component (9) cooperate to regularly exhaust the gas inside the injection molding machine body (2), and ultrasonic degassing mechanisms (10) for exhausting bubbles inside the molten material are arranged on the surface of the injection molding machine (1) and on both sides of the injection molding machine body (2); The ultrasonic density meter (703) cooperates with the receiving device (704) to directly measure the density of the fluid inside the quality inspection tube (701); By utilizing the heat of the molten plastic and the separable structure of the copper shell (803) and the copper tube (801), the gas cylinder (912) is provided with an energy storage process, and the instantaneous suction force generated when the energy storage of the gas cylinder (912) reaches the limit is utilized to extract the gas existing in the injection molding machine body (2); The invention is used to remove bubbles in the molten plastic by combining an ultrasonic generator (1005) which is in intermittent contact with the molten material.

2. The resource recycling injection molding machine for recycling waste plastics according to claim 1, characterized in that: A heating mechanism (203) for heating plastic particles is fixedly assembled inside the injection molding machine body (2); a stagnation chamber (204) is provided inside the injection molding machine body (2) at one end close to the molding mechanism (6); a cone plug (206) is integrally provided at one end of the screw feeder (205) located inside the stagnation chamber (204); and an exhaust duct (207) for exhausting gas is provided at the top of the injection molding machine body (2) at one end close to the stagnation chamber (204).

3. The resource recycling injection molding machine for recycling waste plastics according to claim 2, characterized in that: A channel valve (202) for changing the flow direction of the molten material is arranged at the connection point of the molten material injection pipe (201) corresponding to the ultrasonic quality inspection mechanism (7), and a ball valve core (208) is assembled inside the channel valve (202), and a helical gear (211) is installed at one end of the shaft of the ball valve core (208) extending to the bottom of the channel valve (202), and a motor (212) is fixedly installed on the outer wall of the injection molding machine body (2) and located below the channel valve (202), and the output end of the motor (212) A second bevel gear (213) meshing with the first bevel gear (211) is installed, a branch pipe (214) is integrally provided on the top of the channel valve (202), and a second fan-shaped through hole (215) is symmetrically opened inside the branch pipe (214), and a shunt pipe (209) is integrally provided on the top of the ball valve core (208), and the shunt pipe (209) is placed inside the branch pipe (214), and a fan-shaped through hole (210) is symmetrically opened inside the shunt pipe (209); The ultrasonic quality inspection mechanism (7) comprises a quality inspection tube (701) connected to the branch tube (214), an ultrasonic density meter (703) is fixedly installed on one side of the outer wall of the quality inspection tube (701), a receiving device (704) and a display (705) are fixedly installed on the other side of the outer wall of the quality inspection tube (701), and the ultrasonic density meter (703) and the receiving device (704) are used together to detect the density of the molten fluid, and a drawing tube (702) is fixedly connected to the top of the quality inspection tube (701), the drawing tube (702) is in an inverted U shape and the end is connected to a drawing cylinder (706) for collecting molten material samples.

4. The resource recycling injection molding machine for recycling waste plastics according to claim 3, characterized in that: A heat conduction cavity (216) is provided inside the injection molding machine body (2) near one end of the molding mechanism (6); the temperature control component (8) comprises a copper tube 1 (801), a copper tube 2 (802) and a water storage tank (807); the copper tube 1 (801) is installed inside the heat conduction cavity (216); the copper tube 2 (802) is arranged above the copper tube 1 (801); and fins are provided on the side walls of the copper tube 1 (801) and the copper tube 2 (802) close to each other; and a fin sliding assembly is provided between the copper tube 1 (801) and the copper tube 2 (802) for transferring heat from the copper tube 1 (801) to the water storage tank (807). 801) is a copper shell (803) guiding the copper tube 2 (802), both sides of the bottom fin of the copper tube 2 (802) are provided with groove plates (805), and the outer walls of both sides of the copper shell (803) are fixedly connected with wall rods (804) penetrating the groove plates (805), the bottom of the water storage tank (807) is connected with a water pipe (806), and the water pipe (806) is wound around the outside of the copper tube 2 (802), and one end of the water pipe (806) away from the water storage tank (807) is connected with an elastic air bag (810), and the elastic air bag (810) is placed on one side of the top of the water storage tank (807); A hook frame (809) is fixedly mounted on one side of the water storage tank (807), and an elastic air bag (810) is fixedly mounted on the inner side of the hook frame (809), a spring (811) is connected between the top of the elastic air bag (810) and the inner wall of the top of the hook frame (809), an air hole for exhaust is opened on the top of the elastic air bag (810), and a slider (813) is symmetrically damped and slidingly assembled on the top of the elastic air bag (810), and a baffle (812) for blocking the air hole is arranged on the opposite sides of the two sliders (813), and an inclined groove (814) is opened on the surface of the slider (813), and the two sliders (813) are separated from each other. An extension rod (816) is integrally provided on one side, a top rod (815) for pressing into the corresponding inclined groove (814) is fixedly provided on the inner wall at the top of the hook frame (809), a wedge-shaped stopper (817) for extruding and contacting the end of the corresponding extension rod (816) is fixedly provided on the inner walls on both sides of the hook frame (809), a connecting plate is fixedly provided on the top of the elastic airbag (810), and both ends of the connecting plate are fixedly connected with arm rod 1 (818) and arm rod 2 (819), the bottom end of arm rod 1 (818) is connected to the end of the corresponding wall rod (804), and the end of arm rod 2 (819) is integrally provided with a gear rod 1 (820).

5. The resource recycling injection molding machine for recycling waste plastics according to claim 4, characterized in that: The energy storage exhaust assembly (9) comprises a wall frame (901), a lever (908) and an air cylinder (912), wherein the two wall frames (901) are fixedly mounted on the side wall of the injection molding machine body (2) near the molding mechanism (6), the top of the wall frame (901) is rotatably mounted with a gear 1 (902) meshing with a gear rod 1 (820), and the inner side of the gear 1 (902) is coaxially fixedly assembled with a gear 2 (903), the top of the wall frame (901) is rotatably assembled with a gear 3 (904) meshing with the gear 2 (903), and one side of the gear 1 (902) is coaxially fixedly assembled with a gear 4 (905), and the top of the wall frame (901) is a lifting slide. The dynamic assembly is provided with a gear rod 2 (906) meshing with a gear 4 (905); a bracket (907) is fixedly installed on the top of one end of the injection molding machine body (2); and two levers (908) are rotatably assembled on the inner side of the bracket (907); the two gear rods 2 (906) are connected to one end of the lever (908) away from the transfer point; the other end of the lever (908) close to the transfer point is elastically and telescopically assembled with a pry bar (909); the inner walls on both sides of the bracket (907) and corresponding to the bottom of the pry bar (909) are elastically and rotatably assembled with a stop bar (910) through a coil spring; the outer walls on the same side of the pry bar (909) and the stop bar (910) are fixedly connected with a side bar (911).

6. The resource recycling injection molding machine for recycling waste plastics according to claim 5, characterized in that: The air cylinder (912) is fixedly installed on the top of the injection molding machine body (2), and the top of the air cylinder (912) is fixedly connected with an air intake pipe (914) connected to the exhaust duct (207). The interior of the air cylinder (912) is telescopically assembled with a piston member (913), and the bottom end of the piston member (913) extending out of the air cylinder (912) is fixedly connected with a bottom plate (915), and a sliding assembly is formed between the bottom plate (915) and the air cylinder (912) through a guide rod and a guide sleeve, and a spring (916) is connected between the bottom plate (915) and the outer wall of the air cylinder (912), and both ends of the spring (916) are fixedly connected with a ratchet rod (917), and both ends of the spring (916) are fixedly provided with a top block (918) located on the outer side of the ratchet rod (917), and the outer walls of the two ratchet rods (917) are fixedly connected with a pressure rod (919); The outer walls of both sides of the bracket (907) are fixedly mounted with a wall shell (920), and one end of the wall shell (920) close to the ratchet rod (917) is elastically and telescopically assembled with a T-shaped rod (921) for temporarily hooking the side rod (911), and the outer wall of the T-shaped rod (921) away from the wall shell (920) is integrally provided with a wedge-shaped stopper block 2 (922) for extrusion contact with the top block (918), and a locking groove (923) is provided on the bottom side of the middle part of the horizontal end of the T-shaped rod (921), and the bottom of the wall shell (920) is elastically and telescopically assembled with an inner push rod for temporarily pressing into the locking groove (923), and the side wall of the inner push rod is fixedly connected with a through rod (924) that passes through the side wall of the wall shell (920).

7. The resource recycling injection molding machine for recycling waste plastics according to claim 6, characterized in that: The injection molding machine body (2) is provided with acoustic wave cavities (217) in an array on both sides of the interior of the exhaust duct (207), and an air extraction duct (218) and an air supply duct (219) are provided inside the injection molding machine body (2) and above each acoustic wave cavity (217). The ultrasonic bubble removal mechanism (10) comprises a second motor (1001) and an ultrasonic generator (1005). A gearbox (1002) is provided at the output end of the second motor (1001), and the output shaft of the second motor (1001) is connected to the input end of the gearbox (1002). The output end of (1002) is connected to a crankshaft (1003), and the ultrasonic generator (1005) is slidably assembled inside the corresponding sound wave cavity (217), and one end of the ultrasonic generator (1005) extending out of the sound wave cavity (217) is fixedly connected to a slot rod (1004), and the slot rods (1004) located on the same side are commonly connected to the corresponding crankshaft (1003), and the outer wall of the ultrasonic generator (1005) is provided with a straight groove (1006), and a row of teeth (1007) is provided at one end of the straight groove (1006) away from the slot rod (1004).

8. The resource recycling injection molding machine for recycling waste plastics according to claim 7, characterized in that: Gear 5 (1008), gear 6 (1009) and a transmission rod (1010) are rotatably installed inside the injection molding machine body (2) and below the sonic cavity (217); the gear 5 (1008) is detachably meshed with the row of teeth (1007); the gear 6 (1009) is meshed with the gear 5 (1008); the gear 6 (1009) and the transmission rod (1010) are meshed and transmitted via a helical gear set; a gear 7 (1012) is installed at one end of the transmission rod (1010) away from the gear 6 (1009); a ring plate (1015) is fixedly installed at one end of the sonic cavity (217) close to the screw feeder (205); the side wall of the ring plate (1015) is connected to the transmission rod via a circularly distributed rotating rod. A fixed ring (1016) is provided in the connecting assembly, a sealing block (1017) is provided in the annular distributed rotating assembly between the ring plate (1015) and the fixed ring (1016), and the sealing block (1017) and the rotating rod constitute a rotating assembly, the side wall of the edge of the sealing block (1017) is fixedly connected with a guide rod (1018), the outer edge of the fixed ring (1016) is movably sleeved with a movable ring body (1011), and one side of the outer wall of the movable ring body (1011) is provided with a local gear tooth (1013) meshing with a gear seven (1012), the outer edge of the movable ring body (1011) is provided with a circular array of inclined grooves two (1014) for the corresponding guide rod (1018) to pass through, and the sealing block (1017) is used to block the sound wave cavity (217) when it is aggregated.

9. The resource recycling injection molding machine for recycling waste plastics according to claim 8, characterized in that: An air pump generator body (1019) is installed on the top of the gearbox (1002), and the input shaft of the air pump generator body (1019) is drivingly connected to the output shaft of the second motor (1001), and the air inlet end of the air pump generator body (1019) is connected to the second suction pipe (1020), and the second suction pipe (1020) is connected to the exhaust duct (218) on the same side.

10. A resource recycling production method for recycling waste plastics, characterized in that: The specific steps are as follows: Step 1: Collection and classification. There are many types of waste plastics. Different types of plastics have different processing properties and uses. Therefore, effective classification of waste plastics is a key step in achieving high-quality recycling. Step 2: Cleaning and crushing. Before waste plastics are processed, they need to be cleaned to remove surface pollutants. After cleaning, the waste plastics need to be crushed to reduce them to a certain particle size for subsequent melting and reshaping. Step 3: Melting and re-granulation. The broken plastic fragments will go through a melting process and turn into a liquid or semi-liquid state. The melted plastic will be made into small particles through a granulator, i.e. recycled plastic particles. Step 4: Particle screening and re-crushing. Before feeding into the barrel of the injection molding machine, the plastic particles are screened to separate the smaller and larger plastic particles, and then re-melted and re-granulated; Step 5: Injection molding: After being dried and preheated, the recycled plastic particles are fed into the barrel of the injection molding machine, heated to a fluid state, and then injected into the mold to form a product of a predetermined shape; Step 6: Considering quality and environmental protection, the molded products must be quality inspected, and the strength, burrs, pores, etc. of the finished products must be inspected. At the same time, environmental protection and safety standards must be met.

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