Precise preforming machine with temperature control function

Abstract

The utility model relates to the technical field of forming machines, in particular to a precise preforming machine with a temperature control function. The device comprises a controller, an optical fiber type temperature sensor and an outer cylinder connected to the front end of a feeding and extruding device, an extruding cylinder is arranged in the outer cylinder, an electromagnetic heating assembly is arranged at the front end of the extruding cylinder, an extruding die head is installed at the front end of the electromagnetic heating assembly, the front end of the outer cylinder is connected with a front cover, and an air cooling assembly is installed on the front cover. The controller is connected with the optical fiber type temperature sensor; electromagnetic heating is used for replacing existing heating wire heating, on one hand, the energy conversion rate of electromagnetic heating is high, energy conservation and emission reduction are achieved, on the other hand, control over electromagnetic heating is more accurate, temperature control can be more accurate, and the response speed is high; the optical fiber type temperature sensor is high-temperature-resistant and anti-electromagnetic interference, can well adapt to work of the forming machine, uses optical fibers for detection, and is long in service life and convenient to use and maintain.

Description

Technical Field

[0001] This utility model relates to the field of molding machine technology, specifically to a precision preforming machine with temperature control function. Background Technology

[0002] Precision preforming machines are widely used in modern manufacturing, especially in fields such as aerospace, automotive, and medical devices, where extremely high precision in material processing is required. Their core function is to pre-form materials (such as plastics or composites) to near their final shape, providing a foundation for subsequent finishing processes. However, many materials are significantly affected by temperature during the molding process; incorrect ambient temperatures can not only affect the molding quality but also lead to dimensional deviations or changes in material properties.

[0003] Traditional preforming machines mostly use heating wires or heating plates to provide heat sources. However, this method has problems such as low heat conduction efficiency, uneven temperature, and difficulty in real-time temperature adjustment. This may lead to uneven heating of the processed parts during heating or cooling, affecting the molding quality and precision. In addition, because the heating temperature adjustment is relatively slow, it cannot meet the needs of rapid temperature adjustment during the molding process. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings and deficiencies of existing technologies by providing a reasonably designed precision preforming machine with temperature control function, which can solve the aforementioned defects.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a controller, a fiber optic temperature sensor, and an outer cylinder connected to the front end of the feeding and extrusion device. An extrusion cylinder is provided inside the outer cylinder, and an electromagnetic heating component is provided at the front end of the extrusion cylinder. An extrusion die is installed at the front end of the electromagnetic heating component. A front cover is connected to the front end of the outer cylinder, and an air cooling component is installed on the front cover. The controller is connected to the fiber optic temperature sensor.

[0006] Preferably, the electromagnetic heating assembly includes a heat-insulating connection part connected to the front end of the extrusion cylinder, the extrusion die head is mounted on the head of the heat-insulating connection part, a heating ring is embedded in the inner side of the heat-insulating connection part, a high thermal conductivity ring is attached to the inner side of the heating ring, the inner surface of the high thermal conductivity ring is flush with the inner surface of the heat-insulating connection part and the inner surface of the extrusion cylinder, and an electromagnetic coil is sleeved on the outer side of the heat-insulating connection part.

[0007] Preferably, the fiber optic temperature sensor includes a sensor host, on which several temperature-sensing optical fibers are connected. The heads of some of the temperature-sensing optical fibers pass through the outer cylinder and the extrusion cylinder respectively and are connected to the high thermal conductivity ring. The heads of the other part of the temperature-sensing optical fibers are located in the rear end position of the extrusion cylinder in the outer cylinder. The sensor host is connected to the controller via signal.

[0008] Preferably, the air cooling assembly includes an air inlet seat and an air outlet seat symmetrically arranged on both sides of the outer cylinder. The air inlet seat and the air outlet seat are located on both sides of the extrusion cylinder, and ventilation holes are opened in the air inlet seat and the outer cylinder. A high-speed fan is installed in the air inlet seat, and an isolation net is installed on the air outlet seat.

[0009] Preferably, a heat-resistant sealing ring is provided inside the front cover at the contact position with the extrusion die.

[0010] Preferably, the controller is electrically connected to the high-speed fan and the electromagnetic coil, and a serial connection is used between the sensor host and the controller.

[0011] The beneficial effects of this utility model after adopting the above structure are:

[0012] 1. This utility model uses electromagnetic heating instead of the existing electric heating wire heating. On the one hand, electromagnetic heating has a high energy conversion rate, saving energy and reducing emissions. On the other hand, electromagnetic heating is more precise in control, allowing for more accurate temperature control and a faster response speed.

[0013] 2. This utility model uses a fiber optic temperature sensor, which is resistant to high temperatures and electromagnetic interference, and can be well adapted to the operation of the molding machine. It uses fiber optics for detection, has a long service life, and is not affected by product contamination. The sensor host is used for unified driving and data reading, making it convenient to use and maintain.

[0014] 3. This utility model uses multiple sets of temperature detectors to achieve temperature confirmation at multiple locations, ensuring accurate detection results. The controller controls heating and cooling to ensure stable and accurate material temperature. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the external partial structure of this utility model;

[0016] Figure 2 This is a partial cross-sectional view of the present invention;

[0017] Figure 3 yes Figure 2 Enlarged view of section A;

[0018] Figure 4 This is a partial right-side view of the present invention;

[0019] Figure 5 This is a simplified circuit connection diagram of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Outer cylinder; 2. Front cover; 3. Controller; 4. Sensor host; 5. Extrusion cylinder; 6. Extrusion die; 7. Thermal insulation connection; 8. Heating ring; 9. High thermal conductivity ring; 10. Electromagnetic coil; 11. Temperature measuring fiber optic cable; 12. Air inlet seat; 13. High-speed fan; 14. Air outlet seat; 15. Isolation net. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] See Figures 1-3 As shown, it includes a controller 3, a fiber optic temperature sensor, and an outer cylinder 1 connected to the front end of the feeding and extrusion device. The feeding device of the molding machine is equipped with a temperature control structure. An extrusion cylinder 5 is provided inside the outer cylinder 1. An electromagnetic heating component is provided at the front end of the extrusion cylinder 5. An extrusion die 6 is installed at the front end of the electromagnetic heating component. A front cover 2 is connected to the front end of the outer cylinder 1. A heat-resistant sealing ring is provided at the contact position between the front cover 2 and the extrusion die 6. An air cooling component is installed on the front cover 2. The controller 3 is connected to the fiber optic temperature sensor.

[0024] See Figures 1-3 As shown, the electromagnetic heating assembly includes a heat-insulating connection part 7 connected to the front end of the extrusion cylinder 5, an extrusion die 6 mounted on the head of the heat-insulating connection part 7, a heating ring 8 embedded inside the heat-insulating connection part 7, a high thermal conductivity ring 9 attached to the inner side of the heating ring 8, the inner surface of the high thermal conductivity ring 9 being flush with the inner surface of the heat-insulating connection part 7 and the inner surface of the extrusion cylinder 5, and an electromagnetic coil 10 sleeved on the outer side of the heat-insulating connection part 7.

[0025] As an optimized solution of this utility model, electromagnetic coil 10 and heating ring 8 are used to realize electromagnetic induction heating, which can accurately control the heating power, has a high energy conversion rate, and the heating ring 8 can be heated evenly. The high thermal conductivity ring 9 further conducts heat evenly to ensure that the internal materials can be heated evenly. The heat insulation connection part 7 insulates the heating part to reduce the heat loss from the heating position.

[0026] See Figures 1-4 As shown, the fiber optic temperature sensor includes a sensor host 4, on which several temperature-sensing optical fibers 11 are connected. The heads of some of the temperature-sensing optical fibers 11 pass through the outer cylinder 1 and the extrusion cylinder 5 respectively and are connected to the high thermal conductivity ring 9. The heads of the other part of the temperature-sensing optical fibers 11 are located in the rear end position of the extrusion cylinder 5 in the outer cylinder 1. The sensor host 4 is connected to the controller 3.

[0027] As an optimized solution of this utility model, a fiber optic temperature sensor is used, which is resistant to high temperature and electromagnetic interference, and can be well adapted to the operation of the molding machine. The use of fiber optics for detection has a long service life and is not affected by product contamination. The sensor host 4 is used for unified driving and data reading, which is convenient to use and maintain.

[0028] See Figures 1-4 As shown, the air cooling assembly includes an air inlet seat 12 and an air outlet seat 14 symmetrically arranged on both sides of the outer cylinder 1. The air inlet seat 12 and the air outlet seat 14 are located on both sides of the extrusion cylinder 5, and ventilation holes are opened in the outer cylinder 1. A high-speed fan 13 is installed in the air inlet seat 12, and an isolation net 15 is installed on the air outlet seat 14.

[0029] As an optimized solution of this utility model, a relatively sealed chamber is formed in the outer cylinder 1, the extrusion cylinder 5 and the front cover 2, except for the ventilation holes on both sides. When the high-speed fan 13 is not started, no large airflow is generated in the chamber, so the temperature does not change much and the equipment can remain stable during operation. When the high-speed fan 13 is started, the airflow is injected from the air inlet seat 12 and then sprayed out from the air outlet seat 14, which quickly carries away the heat on the surface of the extrusion cylinder 5, thereby making the extrusion cylinder 5 cool down quickly.

[0030] See Figures 1-4 As shown, the controller 3 is electrically connected to the temperature control structure, high-speed fan 13 and electromagnetic coil 10 of the feeding device, and the sensor host 4 and the controller 3 are connected in series.

[0031] As an optimized solution of this utility model, controller 3 is used as the control core to acquire temperature data of various parts and uniformly adjust the temperature control structure of each part of the molding machine.

[0032] The usage process of this utility model:

[0033] Once the equipment is installed in place, it can begin operation. Figure 5 The diagram illustrates the wiring principle of the equipment. The feeding device feeds the material into the extrusion cylinder 5. The electromagnetic coil 10 heats the heating ring 8. The high thermal conductivity ring 9 ensures that the material inside is heated evenly and then extruded from the extrusion die 6. The sensor host 4 acquires data in real time through multiple temperature-measuring optical fibers 11 and analyzes the specific temperature values ​​at each location. The data is then sent to the controller 3 via a serial port. The controller 3, based on the preset material temperature requirements and combined with the real-time temperature data, uses a PID algorithm to determine the heating power required by the electromagnetic coil 10, as well as the temperature control structure of the feeding device and the start / stop and power of the high-speed fan 13. This allows the controller to adjust and control the temperature at the extrusion die 6 and the temperature of the material in the outer cylinder 1 that has not yet started heating.

[0034] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A precision preforming machine with temperature control function, characterized in that: It includes a controller (3), a fiber optic temperature sensor and an outer cylinder (1) connected to the front end of the feeding and extrusion device. The outer cylinder (1) is equipped with an extrusion cylinder (5). The front end of the extrusion cylinder (5) is equipped with an electromagnetic heating component. The front end of the electromagnetic heating component is equipped with an extrusion die (6). The front end of the outer cylinder (1) is connected to a front cover (2). An air cooling component is installed on the front cover (2). The controller (3) is connected to the fiber optic temperature sensor. The electromagnetic heating assembly includes a heat-insulating connection part (7) connected to the front end of the extrusion cylinder (5). The extrusion die (6) is installed on the head of the heat-insulating connection part (7). A heating ring (8) is embedded in the inner side of the heat-insulating connection part (7). A high thermal conductivity ring (9) is attached to the inner side of the heating ring (8). The inner surface of the high thermal conductivity ring (9) is flush with the inner surface of the heat-insulating connection part (7) and the inner surface of the extrusion cylinder (5). An electromagnetic coil (10) is sleeved on the outer side of the heat-insulating connection part (7). The fiber optic temperature sensor includes a sensor host (4), on which several temperature-sensing optical fibers (11) are connected. The heads of some of the temperature-sensing optical fibers (11) pass through the outer cylinder (1) and the extrusion cylinder (5) respectively and are connected to the high thermal conductivity ring (9). The heads of the other part of the temperature-sensing optical fibers (11) are located in the rear end position of the extrusion cylinder (5) in the outer cylinder (1). The sensor host (4) is connected to the controller (3) via signal.

2. The precision preforming machine with temperature control function according to claim 1, characterized in that: The air cooling assembly includes an air inlet seat (12) and an air outlet seat (14) symmetrically arranged on both sides of the outer cylinder (1). The air inlet seat (12) and the air outlet seat (14) are located on both sides of the extrusion cylinder (5), and ventilation holes are opened in the air inlet seat (12) and the air outlet seat (14) and the outer cylinder (1). A high-speed fan (13) is installed in the air inlet seat (12), and an isolation net (15) is installed on the air outlet seat (14).

3. A precision preforming machine with temperature control function according to claim 2, characterized in that: A heat-resistant sealing ring is provided inside the front cover (2) at the contact position with the extrusion die (6).

4. A precision preforming machine with temperature control function according to claim 3, characterized in that: The controller (3) is electrically connected to the high-speed fan (13) and the electromagnetic coil (10), and the sensor host (4) and the controller (3) are connected in series.

Images