Injection molding machine based on intelligent temperature control self-adaptive adjustment

Abstract

The invention relates to the field of injection molding machines, discloses an injection molding machine based on intelligent temperature control self-adaptive adjustment, and solves the problem that at present, self-adaptive adjustment on the heating temperature according to the viscous state of a molten injection molding raw material is inconvenient to carry out in a charging barrel. A nozzle is arranged at one end of the charging barrel, and a heating barrel is mounted on the outer wall of the charging barrel; a viscosity detection assembly is arranged on the side, close to the nozzle, of the heating barrel and comprises two limiting ring plates installed on the outer wall of the material barrel, a sealing ring sleeve is arranged between the two limiting ring plates, and the inner wall of the sealing ring sleeve is tightly attached to the outer wall of the material barrel; according to the injection molding machine, the viscosity of an injection molding raw material at the current heating temperature is reflected through the viscosity detection assembly, then the heating temperature is subjected to self-adaptive fine adjustment through the temperature control module, and the injection molding quality is improved.

Description

Technical Field

[0001] This invention belongs to the field of injection molding machines, specifically an injection molding machine based on intelligent temperature control and adaptive adjustment. Background Technology

[0002] Injection molding machines are core equipment used to mold thermoplastic / thermosetting plastics into various shapes of plastic products using plastic molds. They consist of an injection system, a mold clamping system, a hydraulic / electrical control system, and a heating / cooling system. The injection system is responsible for melting, mixing, and injecting the plastic into the mold under high pressure. It mainly includes a hopper (for loading plastic raw materials), a screw (for conveying / melting / mixing the plastic), a barrel (for heating the plastic), and a nozzle (for connecting to the mold and stabilizing material output). However, the following drawbacks still exist: During the heating and melting process of injection molding raw materials, it is inconvenient to adaptively adjust the heating temperature according to the viscosity of the molten injection molding raw materials. When the viscosity of the molten injection molding raw materials is high, its flow resistance is greater, which makes it easy to cause insufficient injection volume during injection. Conversely, when the viscosity of the molten injection molding raw materials is low, its flow resistance is lower, which makes it easy to cause excessive injection volume during injection, thereby affecting the injection molding quality. Summary of the Invention

[0003] In order to overcome the shortcomings of the prior art, this invention provides an injection molding machine based on intelligent temperature control and adaptive adjustment, which effectively solves the problem that it is currently inconvenient to adaptively adjust the heating temperature according to the viscosity of the molten injection molding material.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an injection molding machine based on intelligent temperature control adaptive adjustment, including a barrel, a nozzle is provided at one end of the barrel, a heating cylinder is installed on the outer wall of the barrel for heating the raw material to melt it, and a viscosity detection component is provided on the side of the heating cylinder near the nozzle. The viscosity testing component includes two limiting ring plates installed on the outer wall of the barrel, and a sealing ring sleeve is provided between the two limiting ring plates. The inner wall of the sealing ring sleeve is in close contact with the outer wall of the barrel. The bottom and top of the barrel are respectively provided with a material inlet and a return outlet. The material inlet and the return outlet are coaxially arranged and located between the two limiting ring plates. A bottom insert is installed at the bottom of the sealing ring, and a flow time detection element is installed at the top of the sealing ring. The flow time detection device includes a top box fixedly installed on the top of the sealing ring. The top box has a filling groove inside, which is located directly above the return port. The top box also has a side groove inside, and a connecting groove is formed between the filling groove and the side groove. The filling groove, the side groove, and the connecting groove form a communicating vessel. A miniature wireless pressure sensor is installed inside the side groove. The molten material in the filling groove enters the side groove through the connecting groove and generates pressure on the miniature wireless pressure sensor. The duration of pressure change generated by the miniature wireless pressure sensor reflects the viscosity of the molten material. After collecting the duration of pressure change, the miniature wireless pressure sensor transmits the data to the temperature control and management system. The temperature control management system includes a data acquisition module, a data analysis module, and a temperature regulation module. The data acquisition module is a miniature wireless pressure sensor. The data analysis module is used to analyze and compare the time, and then the temperature regulation module automatically adjusts the heating temperature of the heating cylinder.

[0005] Preferably, the connecting groove is inclined downward at one end near the filling groove, the filling groove is provided with a material inlet / outlet control component, the side groove is provided with a material blocking control component, a toothed ring is installed on the outer side of the sealing ring, a rotating gear is meshed on one side of the toothed ring, the rotating gear is fixedly connected to the output shaft of the rotating motor, and the rotating motor is fixedly installed on the material cylinder.

[0006] Preferably, the bottom extrusion component includes a bottom cylinder installed at the bottom end of the sealing ring, a push rod is movably installed inside the bottom cylinder, the top end of the push rod extends through the inside of the feeding port, the arc surface of the top end of the push rod is adapted to the inner bottom wall of the cylinder, a first spring is installed at the bottom end of the push rod, one end of the first spring is fixedly connected to the inner wall of the end of the bottom cylinder, a first magnetic block is installed on the push rod, and a first electromagnet is installed at the end of the bottom cylinder.

[0007] Preferably, the feeding and discharging control component includes a base plate fixedly installed at the bottom of the filling trough, the bottom wall of the base plate being in close contact with the outer wall of the material cylinder, a first through hole being opened at an equal angle on the base plate, a baffle being movably installed inside the filling trough, the baffle being located below the connecting groove, and the outer wall of the baffle being in close contact with the inner wall of the filling trough, and a second through hole being opened at an equal angle at the bottom of the baffle.

[0008] Preferably, a rotating rod is coaxially mounted on the baffle, the rotating rod is rotatably connected to the top box, a driven gear is mounted at the top of the rotating rod, a driving gear is meshed with one side of the driven gear, the driving gear is fixedly connected to the output shaft of the drive motor, and the drive motor is fixedly mounted on the top box.

[0009] Preferably, the material blocking control component includes a stop block movably installed inside the side groove, the outer wall of the stop block being in close contact with the inner wall of the side groove, a movable rod being installed at the bottom end of the stop block, the bottom end of the movable rod being movably installed inside the movable groove, the movable groove being opened inside the top box, a second spring being installed at the bottom end of the movable rod, the bottom end of the second spring being fixedly connected to the inner bottom wall of the movable groove, a second magnet being installed at the bottom end of the movable rod, a second electromagnet being installed on the inner bottom wall of the movable groove, and the top wall of the stop block being inclined downwards near the connecting groove.

[0010] Preferably, the stop block has a circular cavity inside, and a circular block is rotatably installed inside the circular cavity. A miniature wireless pressure sensor is installed on the circumferential outer wall of the circular block. Indirect pressure actuators are provided at the top of the circular cavity and on the side near the connecting groove. A flexible hose is installed at the bottom of the stop block, which is connected to the circular cavity. The other end of the flexible hose extends to the outside of the top box and is connected to the air pump.

[0011] Preferably, the indirect pressing member includes a mounting groove formed at the top of the circular cavity and a mounting groove formed on the side of the circular cavity near the connecting groove. Guide grooves are symmetrically formed on both sides of the mounting groove. A pressing stop is movably installed inside the mounting groove. Guide blocks are symmetrically installed on both sides of the pressing stop. The guide blocks are slidably connected to the guide grooves. A third spring is installed on the side of the guide block near the circular cavity.

[0012] Preferably, rotating shafts are symmetrically installed on both sides of the circular block, and an end gear is installed at one end of the rotating shaft. The rotating shaft is rotatably installed in the shaft groove, which is opened inside the stop block. A plate groove is opened on one side of the shaft groove, and a toothed plate is provided on the inner side of the plate groove. The toothed plate is fixedly installed on the bottom wall of the side groove, and the toothed plate meshes with the end gear.

[0013] Preferably, the inside of the material cylinder is provided with a feeding screw, and a rotational movement drive is installed at the end of the material cylinder away from the nozzle. The rotational movement drive is used to drive the feeding screw to rotate and move. A pusher piston is installed at the end of the feeding screw near the nozzle. A one-way valve is installed on the pusher piston. A hopper is installed at the top of the material cylinder. The hopper is located on the side of the heating cylinder away from the nozzle. A switch valve is installed on the hopper.

[0014] Compared with the prior art, the beneficial effects of the present invention are: (1) In this invention, a communicating vessel is formed by the filling tank, the side tank and the connecting tank in the top box. The data analysis module can calculate the time from when the molten injection molding material enters the side tank until the liquid level in the filling tank and the side tank is level through a miniature wireless pressure sensor. This reflects the viscosity of the injection molding material at the current heating temperature and performs data comparison. Then, the heating temperature is adaptively fine-tuned through the temperature control module to improve the injection molding quality. (2) In this invention, when the sealing ring is rotated to the point where the filling groove corresponds to the material outlet, the molten injection molding material inside the barrel can enter the filling groove and the connecting groove, which is convenient for material inspection. After rotation, the filling groove corresponds to the return port, which on the one hand facilitates the molten injection molding material in the filling groove to enter the side groove for viscosity inspection, and on the other hand facilitates the return of the molten injection molding material to avoid material waste. (3) In this invention, a connecting groove is opened between the filling groove and the side groove to form a connecting device. The time it takes for the molten injection molding material in the filling groove to enter the side groove until the liquid levels on both sides are the same reflects the viscosity of the injection molding material, which is convenient for subsequent control. At the same time, since the connecting groove is inclined, it is convenient for the injection molding material in the side groove and the connecting groove to return from the filling groove to the barrel. (4) In this invention, when the connecting groove is closed by the baffle and the first through hole is opened by the baffle, it is convenient for the injection molding material in the filling groove to enter. When the connecting groove is opened and the first through hole is opened, it is convenient for the injection molding material in the filling groove to flow back. When the connecting groove is opened and the first through hole is closed, it is convenient to perform viscosity detection. (5) In this invention, a miniature wireless pressure sensor is circumferentially installed on a circular block, and an indirect pressure actuator is provided on the side of the block near the connecting groove and on the top of the block. The end gear on the circular block meshes with the toothed plate. When the block closes one end of the connecting groove, the indirect pressure actuator on the side of the circular block is convenient for detecting whether the filling groove and the connecting groove are full after feeding. When the block does not close the end of the connecting groove, the indirect pressure actuator on the top of the miniature wireless pressure sensor is convenient for detecting whether the liquid level in the filling groove and the side groove is level. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0016] In the attached diagram: Figure 1 This is a schematic diagram of the injection molding machine structure based on intelligent temperature control adaptive adjustment according to the present invention; Figure 2 This is a schematic diagram of the internal structure of the material cylinder of the present invention; Figure 3 This is a schematic diagram of the viscosity detection component of the present invention; Figure 4 This is a schematic diagram of the circulation time detection component of the present invention; Figure 5 This is a schematic diagram of the internal structure of the top box of the present invention; Figure 6 This is a schematic diagram of the material stop control component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the stop block of the present invention; Figure 8 This is a schematic diagram of the indirect pressing component structure of the present invention; Figure 9 This is a schematic diagram of the feeding and discharging control component of the present invention; In the diagram: 1. Material cylinder; 2. Nozzle; 3. Hopper; 4. Heating cylinder; 5. Rotary moving drive component; 6. Feeding screw; 7. Pushing piston; 8. Viscosity detection component; 801. Limiting ring plate; 802. Feed port; 803. Return port; 804. Sealing ring sleeve; 805. Gear ring; 806. Rotating motor; 807. Rotating gear; 808. Flow time detection component; 8081. Top box; 8082. Filling groove; 8083. Side groove; 8084. Connecting groove; 809. Bottom extruder; 8091. Bottom cylinder; 8092. Pushing rod; 8093. First spring; 8094. First magnet; 8095. First electromagnet; 810. Feeding / discharging control component; 8101. Base plate; 8102. First through hole; 8103. 8104. Rotating rod; 8105. Stop cylinder; 8106. Second through hole; 8107. Driven gear; 8108. Drive motor; 811. Material stop control component; 8111. Stop block; 8112. Movable groove; 8113. Second electromagnet; 8114. Movable rod; 8115. Second spring; 8116. Second magnetic block; 8117. Circular cavity; 8118. Flexible hose; 8119. Circular block; 81110. Mounting groove; 81112. Guide groove; 81113. Pressing stop; 81114. Guide block; 81115. Third spring; 81116. Shaft groove; 81117. Rotating shaft; 81118. End gear; 81119. Plate groove; 81120. Toothed plate; 812. Miniature wireless pressure sensor. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0018] Depend on Figures 1-9The present invention relates to an injection molding machine based on intelligent temperature control adaptive adjustment, comprising a barrel 1, a nozzle 2 at one end of the barrel 1, a heating cylinder 4 installed on the outer wall of the barrel 1 for heating and melting the raw material, a feeding screw 6 inside the barrel 1, a rotational movement drive 5 installed at the end of the barrel 1 away from the nozzle 2 for driving the feeding screw 6 to rotate and move, a pusher piston 7 installed at the end of the feeding screw 6 near the nozzle 2, a one-way valve installed on the pusher piston 7, a hopper 3 installed at the top of the barrel 1, the hopper 3 being located on the side of the heating cylinder 4 away from the nozzle 2, a switch valve installed on the hopper 3, and a viscosity detection component 8 installed on the side of the heating cylinder 4 near the nozzle 2.

[0019] The viscosity detection component 8 includes two limiting ring plates 801 installed on the outer wall of the barrel 1. A sealing ring sleeve 804 is provided between the two limiting ring plates 801. The inner wall of the sealing ring sleeve 804 is in close contact with the outer wall of the barrel 1. The bottom end and the top end of the barrel 1 are respectively provided with a material inlet 802 and a return outlet 803. The material inlet 802 and the return outlet 803 are coaxially arranged and located between the two limiting ring plates 801. A bottom extrusion component 809 is installed at the bottom of the sealing ring sleeve 804, and a flow time detection component 808 is provided at the top end of the sealing ring sleeve 804.

[0020] The circulation time detection component 808 includes a top box 8081 fixedly installed on the top of the sealing ring 804. A filling groove 8082 is provided inside the top box 8081, located directly above the return port 803. A side groove 8083 is also provided inside the top box 8081. A connecting groove 8084 is provided between the filling groove 8082 and the side groove 8083. The filling groove 8082, the side groove 8083, and the connecting groove 8084 form a communicating vessel. The end of the connecting groove 8084 closest to the filling groove 8082 is inclined downwards. The material cylinder 1 has an internal feed / discharge control component 810 and a material blocking control component 811. A gear ring 805 is mounted on the outer side of the sealing ring sleeve 804. A rotating gear 807 is meshed with one side of the gear ring 805. The rotating gear 807 is fixedly connected to the output shaft of the rotating motor 806, which is fixedly mounted on the material cylinder 1. A miniature wireless pressure sensor 812 is installed inside the side groove 8083. Molten material in the filling groove 8082 enters the side groove 8083 through the connecting groove 8084 to sense the miniature wireless pressure sensor. The pressure sensor 812 generates pressure, and the duration of pressure change reflects the viscosity of the molten material. After collecting the pressure change duration, the micro-wireless pressure sensor 812 transmits the data to the temperature control and management system. When the sealing ring 804 rotates to align the filling groove 8082 with the material outlet 802, the molten injection molding material inside the barrel 1 can enter the filling groove 8082 and the connecting groove 8084 for easy material removal and detection. After rotation, the filling groove 8082 aligns with the return port 803, facilitating the entry of the molten injection molding material from the filling groove 8082 into the return port 803. The viscosity of the material is measured in the side groove 8083. This also facilitates the return of the molten injection molding material and avoids material waste. A connecting groove 8084 is formed between the filling groove 8082 and the side groove 8083, thus forming a communicating vessel. The time it takes for the molten injection molding material in the filling groove 8082 to enter the side groove 8083 until the liquid levels on both sides are the same reflects the viscosity of the injection molding material, which is convenient for subsequent control. At the same time, since the connecting groove 8084 is inclined, it is convenient for the injection molding material in the side groove 8083 and the connecting groove 8084 to return to the barrel 1 from the filling groove 8082.

[0021] The temperature control and management system includes a data acquisition module, a data analysis module, and a temperature regulation module. The data acquisition module is a miniature wireless pressure sensor 812. The data analysis module is used to analyze and compare the time taken. Then, the temperature regulation module automatically adjusts the heating temperature of the heating cylinder 4. The filling tank 8082, side tank 8083, and connecting tank 8084 in the top box 8081 form a communicating vessel. The data analysis module can calculate the time taken for the molten injection molding material to enter the side tank 8083 until the liquid level in the filling tank 8082 and the side tank 8083 through the miniature wireless pressure sensor 812, reflecting the viscosity of the injection molding material at the current heating temperature, and comparing the data. Then, the temperature control module adaptively fine-tunes the heating temperature to improve the injection molding quality.

[0022] The bottom extrusion component 809 includes a bottom cylinder 8091 installed at the bottom end of the sealing ring 804. A push rod 8092 is movably installed inside the bottom cylinder 8091. The top end of the push rod 8092 extends into the inside of the feeding port 802. The arc surface of the top end of the push rod 8092 is adapted to the inner bottom wall of the material cylinder 1. A first spring 8093 is installed at the bottom end of the push rod 8092. One end of the first spring 8093 is fixedly connected to the inner wall of the end of the bottom cylinder 8091. A first magnetic block 8094 is installed on the push rod 8092. A first electromagnet 8095 is installed at the end of the bottom cylinder 8091.

[0023] The feeding / discharging control component 810 includes a base plate 8101 fixedly installed at the bottom end of the filling trough 8082. The bottom wall of the base plate 8101 is in close contact with the outer wall of the material cylinder 1. A first through hole 8102 is opened at an equal angle on the base plate 8101. A baffle 8104 is movably installed inside the filling trough 8082. The baffle 8104 is located below the connecting groove 8084, and the outer wall of the baffle 8104 is in close contact with the inner wall of the filling trough 8082. The bottom end of the baffle 8104... A second through hole 8105 is provided at an equal angle. A rotating rod 8103 is coaxially mounted on the baffle 8104. The rotating rod 8103 is rotatably connected to the top box 8081. A driven gear 8106 is installed at the top of the rotating rod 8103. A driving gear 8107 is meshed on one side of the driven gear 8106. The driving gear 8107 is fixedly connected to the output shaft of the drive motor 8108. The drive motor 8108 is fixedly mounted on the top box 8081.

[0024] The material blocking control component 811 includes a stop block 8111 movably installed inside the side groove 8083. The stop block 8111 closes one end of the connecting groove 8084, and when the baffle 8104 opens the first through hole 8102, it facilitates the entry of injection molding material into the filling groove 8082. When one end of the connecting groove 8084 is open and the first through hole 8102 is open, it facilitates the backflow of injection molding material into the filling groove 8082. When one end of the connecting groove 8084 is open and the first through hole 8102 is closed, it facilitates viscosity detection. The outer wall of the stop block 8111 is in close contact with the inner wall of the side groove 8083. A movable rod 8114 is installed at the bottom end of the stop block 8111. The bottom end of the movable rod 8114 is movably installed inside the movable groove 8112, which is located inside the top box 8081. A second spring 811 is installed at the bottom end of the movable rod 8114. 5. The bottom end of the second spring 8115 is fixedly connected to the inner bottom wall of the movable groove 8112. The bottom end of the movable rod 8114 is equipped with a second magnet 8116. The inner bottom wall of the movable groove 8112 is equipped with a second electromagnet 8113. The top wall of the stop block 8111 is inclined downward near the connecting groove 8084. A circular cavity 8117 is opened inside the stop block 8111. A circular block 8119 is rotatably installed inside the circular cavity 8117. A miniature wireless pressure sensor 812 is installed on the circumferential outer wall of the circular block 8119. Indirect pressure actuators are provided at the top of the circular cavity 8117 and on the side near the connecting groove 8084. A flexible hose 8118 is installed at the bottom end of the stop block 8111. The flexible hose 8118 is connected to the circular cavity 8117. The other end of the flexible hose 8118 extends to the outside of the top box 8081 and is connected to the air pump.

[0025] The indirect pressing component includes a mounting groove 81110 formed at the top of the circular cavity 8117 and a mounting groove 81110 formed on the side of the circular cavity 8117 near the connecting groove 8084. Guide grooves 81112 are symmetrically formed on both sides of the mounting groove 81110. A pressing stop 81113 is movably installed inside the mounting groove 81110. Guide blocks 81114 are symmetrically installed on both sides of the pressing stop 81113. The guide blocks 81114 are slidably connected to the guide grooves 81112. A third spring 81115 is installed on the side of the guide blocks 81114 near the circular cavity 8117.

[0026] A rotating shaft 81117 is symmetrically mounted on both sides of a circular block 8119. An end gear 81118 is mounted at one end of each rotating shaft 81117. The rotating shaft 81117 is rotatably mounted within a shaft groove 81116, which is located inside a stop block 8111. A plate groove 81119 is formed on one side of the shaft groove 81116. A toothed plate 81120 is provided on the inner side of the plate groove 81119. The toothed plate 81120 is fixedly mounted on the bottom wall of the side groove 8083 and meshes with the end gear 81118. A miniature wireless pressure sensor 812 is circumferentially mounted on the circular block 8119, while the stop block 8111... Indirect pressure actuators are provided on the side near the connecting channel 8084 and on the top of the stop block 8111. The end gear 81118 on the circular block 8119 meshes with the toothed plate 81120. When the stop block 8111 closes one end of the connecting channel 8084, the circular block 8119 faces the indirect pressure actuator on the side, which facilitates the detection of whether the filling channel 8082 and the connecting channel 8084 are full after feeding. However, the stop block 8111 does not close the end of the connecting channel 8084. The miniature wireless pressure sensor 812 faces the indirect pressure actuator above, which facilitates the detection of whether the liquid level in the filling channel 8082 and the side channel 8083 is level.

[0027] Working principle: During use, the heating temperature of the heating cylinder 4 is controlled by the temperature control management system to be the base heating temperature. The injection molding material is put into the hopper 3 and the switch valve on the hopper 3 is opened, so that part of the injection molding material in the hopper 3 enters the cylinder 1. The rotating moving drive 5 drives the feeding screw 6 to rotate, continuously driving the injection molding material in the cylinder 1 to move towards the nozzle 2. When the injection molding material passes through the inside of the heating cylinder 4, it is heated and melted. When the injection molding material moves to the inside of the sealing ring 804, the feeding screw 6 is stopped by rotating the moving drive 5. Then, the first electromagnet 8095 is energized to generate an attraction force on the first magnetic block 8094, which drives the push rod 8092 to move downward, so that the push rod 8092 is disengaged from the feeding port 802. Then, the rotating motor 806 is turned on to drive the rotating gear 807 to rotate. The rotating gear 807 meshes with the toothed ring 805 on the sealing ring 804, thereby driving the sealing ring 804 to rotate 180 degrees, so that the top box 8081 moves to the bottom of the material cylinder 1, so that the filling groove 8082 corresponds to the feeding port 802. In its original state, the stop block 8111 closes one end of the connecting groove 8084, and the pressing stop 81113 on the upper side of the stop block 8111 corresponds to the stop block 8111. At this time, the drive motor 8108 drives the drive gear 8107 to rotate, and then drives the baffle 8104 to rotate through the driven gear 8106, so that the second through hole 8105 on the baffle 8104 corresponds to the first through hole 8102. At this time, the molten injection molding material inside the barrel 1 enters the filling groove 8082 through the first through hole 8102 and the second through hole 8105 until the filling groove 8082 and the connecting groove 8084 are filled. After filling, the drive baffle 8104 rotates, so that the first through hole 8102 and the second through hole 8105 are misaligned, and one end of the filling groove 8082 is closed. When the molten injection molding material enters the filling groove 8082 and the connecting groove 8084, the molten injection molding material acts on the end of the pressing stop 81113 on the side of the stop block 8111, causing the pressing stop 81113 to press on the miniature wireless pressure sensor 812. As the molten injection molding material enters the connecting groove 8084, the pressure sensed by the miniature wireless pressure sensor 812 continuously increases. The miniature wireless pressure sensor 812 continuously transmits the sensed pressure to the data analysis module. After the data analysis module analyzes that the pressure data continuously increases and then remains constant, it indicates that the molten injection molding material has completely filled the filling groove 8082 and the connecting groove 8084. The miniature wireless pressure sensor 812 is installed on the circumferential outer wall of the circular block 8119 near the connecting groove 8084. Then, the sealing ring 804 is driven to rotate again by the rotating motor 806. Finally, it rotates until the top box 8081 is located at the top of the sealing ring 804, so that the push rod 8092 returns to the inside of the feeding port 802. On the one hand, the sealing ring 804 is positioned and fixed, and on the other hand, the molten injection material that has entered the feeding port 802 is pushed back into the barrel 1. Then, the second electromagnet 8113 is activated, which attracts the second magnetic block 8116 and pulls the stop block 8111 downward until the lowest point of the inclined top wall of the stop block 8111 moves to below one end of the connecting groove 8084. Since the filling groove 8082 and the side groove 8083 are connected through the connecting groove 8084, the filling groove 8082 and the side groove 8083 form a communicating vessel. Under the action of the communicating vessel principle, the molten injection molding material inside the filling groove 8082 and the connecting groove 8084 continuously enters the side groove 8083 until the liquid surface of the molten injection molding material inside the filling groove 8082 and the side groove 8083 is level. During the downward movement of the stop block 8111, the air pump connected to one end of the hose 8118 is activated, drawing outside air into the circular cavity 8117. This creates pressure on the end of the pressure stop plug 81113, pushing it back to its original position. At this point, the end face of the pressure stop plug 81113 mates with the outer wall of the stop block 8111, causing the stop block 8111 to scrape off the molten injection molding material from the end face of the pressure stop plug 81113 as the stop block moves downward. Simultaneously, the engagement of the end gear 81118 with the toothed plate 81120 causes the circular block 8119 to rotate until it reaches the position of the miniature wireless pressure sensor 812. The pressure-operated stopper 81113 above causes the molten injection molding material to continuously enter the side groove 8083, generating pressure on the pressure-operated stopper 81113 at the top of the stopper 8111, which in turn continuously generates pressure on the micro wireless pressure sensor 812, and the pressure continues to increase. The pressure received is transmitted to the temperature control and management system through the micro wireless pressure sensor 812. The data analysis module calculates the duration of pressure change of the micro wireless pressure sensor 812 and compares it with the duration of molten injection molding material at the required viscosity state flowing from the filling groove 8082 and the connecting groove 8084 into the side groove 8083 until the flow stops. The pressure change duration of the miniature wireless pressure sensor 812 represents the flow time of the molten injection material at its current viscosity. Lower heating temperatures result in higher viscosity and lower flow resistance, while higher heating temperatures lead to lower viscosity and lower flow resistance. Higher viscosity results in less injection material being injected into the mold, while lower viscosity results in more injection material. Both factors affect the injection molding effect. The following results were obtained after comparison: When the pressure change duration value of the miniature wireless pressure sensor 812 is greater than the flow duration value of the molten injection molding material under the required viscosity state, it indicates that the flow time of the injection molding material is too long. At this time, the temperature regulation module of the temperature control management system controls the heating temperature of the heating cylinder 4 to increase, thereby reducing the viscosity of the molten injection molding material. When the pressure change duration value of the miniature wireless pressure sensor 812 is smaller than the flow duration value of the molten injection molding material under the required viscosity state, it indicates that the flow time of the injection molding material is too short. At this time, the temperature regulation module of the temperature control management system controls the heating temperature of the heating cylinder 4 to decrease, thereby increasing the viscosity of the molten injection molding material. The heating cylinder 4 is composed of a heating coil, which is connected to a sliding rheostat. The temperature regulation module controls the current flowing through the heating coil through the sliding rheostat, thereby regulating the heating temperature of the heating cylinder 4. After adjustment, the baffle 8104 is driven to rotate by the drive motor 8108 until the second through hole 8105 corresponds to the first through hole 8102, so that the molten injection molding material flows back from the return port 803 to the inside of the barrel 1, avoiding material waste. Since the lowest point of the inclined top wall of the baffle 8111 corresponds to the end of the connecting groove 8084, and the connecting groove 8084 is inclined, it is convenient for the molten injection molding material in the filling groove 8082, the side groove 8083 and the connecting groove 8084 to flow back. After the heating temperature is adjusted, the viscosity of the molten injection molding material inside the barrel 1 changes under the action of the heating temperature. Then, the switch valve on the hopper 3 is opened, allowing the injection molding material to enter the barrel 1. The rotating drive component 5 drives the feeding screw 6 to rotate, so that the injection molding material is heated and moves towards the pusher piston 7. The pusher piston 7 is equipped with a reverse valve, so that the molten injection molding material enters the side of the pusher piston 7 near the nozzle 2 through the one-way valve. After the nozzle 2 is filled with molten injection molding material, the rotating drive component 5 pushes the feeding screw 6 towards the nozzle 2, so that the pusher piston 7 injects the molten injection molding material inside the nozzle 2 into the mold, completing the injection molding. Then, the above melt extrusion operation can be repeated.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine based on intelligent temperature control adaptive adjustment, comprising a barrel (1), characterized in that: A nozzle (2) is provided at one end of the material cylinder (1), and a heating cylinder (4) is installed on the outer wall of the material cylinder (1) for heating the raw material to melt it. A viscosity detection component (8) is provided on the side of the heating cylinder (4) near the nozzle (2). The viscosity testing component (8) includes two limiting ring plates (801) installed on the outer wall of the barrel (1), and a sealing ring sleeve (804) is provided between the two limiting ring plates (801). The inner wall of the sealing ring sleeve (804) is in close contact with the outer wall of the barrel (1). The bottom end and the top end of the barrel (1) are respectively provided with a material inlet (802) and a return outlet (803). The material inlet (802) and the return outlet (803) are coaxially arranged and located between the two limiting ring plates (801). A bottom insert (809) is installed at the bottom of the sealing ring (804), and a flow duration detection element (808) is provided at the top of the sealing ring (804). The circulation time detection component (808) includes a top box (8081) fixedly installed on the top of the sealing ring (804). The top box (8081) has a filling groove (8082) inside, which is located directly above the return port (803). The top box (8081) has a side groove (8083) inside, and a connecting groove (8084) is formed between the filling groove (8082) and the side groove (8083). The filling groove (8082), the side groove (8083), and the connecting groove are all connected. (8084) forms a communicating vessel. A miniature wireless pressure sensor (812) is installed inside the side groove (8083). The molten material in the filling tank (8082) enters the side groove (8083) through the communicating vessel (8084) and generates pressure on the miniature wireless pressure sensor (812). The duration of pressure change generated by the miniature wireless pressure sensor (812) reflects the viscosity of the molten material. The miniature wireless pressure sensor (812) collects the duration of pressure change and transmits it to the temperature control and management system. The temperature control management system includes a data acquisition module, a data analysis module, and a temperature regulation module. The data acquisition module is a miniature wireless pressure sensor (812). The data analysis module is used to analyze and compare the duration, and then the temperature regulation module automatically adjusts the heating temperature of the heating cylinder (4).

2. The injection molding machine based on intelligent temperature control adaptive adjustment according to claim 1, characterized in that: The connecting groove (8084) is inclined downward at one end near the filling groove (8082). The filling groove (8082) is provided with a material inlet / outlet control component (810). The side groove (8083) is provided with a material blocking control component (811). A toothed ring (805) is installed on the outside of the sealing ring sleeve (804). A rotating gear (807) is meshed on one side of the toothed ring (805). The rotating gear (807) is fixedly connected to the output shaft of the rotating motor (806). The rotating motor (806) is fixedly installed on the material cylinder (1).

3. The injection molding machine based on intelligent temperature control adaptive adjustment according to claim 1, characterized in that: The bottom extrusion component (809) includes a bottom cylinder (8091) installed at the bottom end of the sealing ring (804). A push rod (8092) is movably installed inside the bottom cylinder (8091). The top end of the push rod (8092) extends through the inside of the feeding port (802). The arc surface of the top end of the push rod (8092) is adapted to the inner bottom wall of the material cylinder (1). A first spring (8093) is installed at the bottom end of the push rod (8092). One end of the first spring (8093) is fixedly connected to the inner wall of the end of the bottom cylinder (8091). A first magnetic block (8094) is installed on the push rod (8092). A first electromagnet (8095) is installed at the end of the bottom cylinder (8091).

4. The injection molding machine based on intelligent temperature control adaptive adjustment according to claim 1, characterized in that: The feeding and discharging control component (810) includes a base plate (8101) fixedly installed at the bottom of the filling trough (8082). The bottom wall of the base plate (8101) is in close contact with the outer wall of the material cylinder (1). A first through hole (8102) is opened at an equal angle on the base plate (8101). A baffle (8104) is movably installed inside the filling trough (8082). The baffle (8104) is located below the connecting groove (8084), and the outer wall of the baffle (8104) is in close contact with the inner wall of the filling trough (8082). A second through hole (8105) is opened at an equal angle at the bottom of the baffle (8104).

5. The injection molding machine based on intelligent temperature control adaptive adjustment according to claim 4, characterized in that: A rotating rod (8103) is coaxially mounted on the baffle (8104). The rotating rod (8103) is rotatably connected to the top box (8081). A driven gear (8106) is mounted on the top of the rotating rod (8103). A driving gear (8107) is meshed on one side of the driven gear (8106). The driving gear (8107) is fixedly connected to the output shaft of the drive motor (8108). The drive motor (8108) is fixedly mounted on the top box (8081).

6. The injection molding machine based on intelligent temperature control adaptive adjustment according to claim 1, characterized in that: The material blocking control component (811) includes a stop block (8111) movably installed inside the side groove (8083). The outer wall of the stop block (8111) is in close contact with the inner wall of the side groove (8083). A movable rod (8114) is installed at the bottom end of the stop block (8111). The bottom end of the movable rod (8114) is movably installed inside the movable groove (8112). The movable groove (8112) is opened inside the top box (8081). A second spring (8115) is installed at the bottom end of the movable rod (8114). The bottom end of the second spring (8115) is fixedly connected to the inner bottom wall of the movable groove (8112). A second magnet (8116) is installed at the bottom end of the movable rod (8114). A second electromagnet (8113) is installed on the inner bottom wall of the movable groove (8112). The top wall of the stop block (8111) is inclined downward near the connecting groove (8084).

7. An injection molding machine based on intelligent temperature control adaptive adjustment according to claim 6, characterized in that: The stop block (8111) has a circular cavity (8117) inside. A circular block (8119) is rotatably installed inside the circular cavity (8117). A miniature wireless pressure sensor (812) is installed on the circumferential outer wall of the circular block (8119). Indirect pressure components are provided at the top of the circular cavity (8117) and on the side near the connecting groove (8084). A flexible hose (8118) is installed at the bottom of the stop block (8111). The flexible hose (8118) is connected to the circular cavity (8117). The other end of the flexible hose (8118) extends to the outside of the top box (8081) and is connected to the air pump.

8. An injection molding machine based on intelligent temperature control adaptive adjustment according to claim 7, characterized in that: The indirect pressing component includes a mounting groove (81110) opened at the top of the circular cavity (8117) and a mounting groove (81110) opened on the side of the circular cavity (8117) near the connecting groove (8084). Guide grooves (81112) are symmetrically opened on both sides of the mounting groove (81110). A pressing stop (81113) is movably installed inside the mounting groove (81110). Guide blocks (81114) are symmetrically installed on both sides of the pressing stop (81113). The guide blocks (81114) are slidably connected to the guide grooves (81112). A third spring (81115) is installed on the side of the guide blocks (81114) near the circular cavity (8117).

9. An injection molding machine based on intelligent temperature control adaptive adjustment according to claim 7, characterized in that: The circular block (8119) has symmetrically mounted rotating shafts (81117) on both sides. One end of the rotating shaft (81117) is equipped with an end gear (81118). The rotating shaft (81117) is rotatably mounted in the shaft groove (81116). The shaft groove (81116) is opened inside the stop block (8111). A plate groove (81119) is opened on one side of the shaft groove (81116). A toothed plate (81120) is provided on the inner side of the plate groove (81119). The toothed plate (81120) is fixedly installed on the bottom wall of the side groove (8083). The toothed plate (81120) meshes with the end gear (81118).

10. An injection molding machine based on intelligent temperature control adaptive adjustment according to claim 1, characterized in that: The feed cylinder (1) is equipped with a feeding screw (6). A rotating and moving drive (5) is installed at the end of the feed cylinder (1) away from the nozzle (2). The rotating and moving drive (5) is used to drive the feeding screw (6) to rotate and move. A pusher piston (7) is installed at the end of the feeding screw (6) close to the nozzle (2). A one-way valve is installed on the pusher piston (7). A hopper (3) is installed at the top of the feed cylinder (1). The hopper (3) is located on the side of the heating cylinder (4) away from the nozzle (2). A switch valve is installed on the hopper (3).

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