Control system of extrusion die

Abstract

The utility model discloses a control system of an extrusion die, which comprises a die body and a liquid nitrogen cooling module, the die body is used for forming aluminum profiles, a liquid nitrogen pipeline of the liquid nitrogen cooling module is arranged in the die body, and a cavity is formed between an inner die core and an outer die core of the die body. The front end of the die body is provided with a feeding nozzle communicated with the cavity, at least one identification chip is installed at the front end of the die body, and a plurality of temperature probes arranged at intervals in the length direction of the die body are installed on the die body. And a controller is electrically connected with the identification chip, the temperature probe and the control unit of the liquid nitrogen cooling module respectively, and is used for controlling the flow velocity of the cooling medium in the liquid nitrogen pipeline through the control unit of the liquid nitrogen cooling module according to the temperature data collected to the temperature probe. On the basis of forming the aluminum profile, the extrusion product can be uniformly cooled, so that the quality of the product is improved.

Description

Technical Field

[0001] The utility model relates to a control system of an extrusion die, belonging to the technical field of aluminum profile extrusion. Background Art

[0002] The extrusion die is a type of forming die. The difference is that its discharge method is achieved through extrusion. It is widely used in aluminum special-shaped structures and is often used to make pipes. The working temperature of the extrusion die is generally above 500°C. As the extrusion process continues, the temperature of the extrusion die working zone increases due to the drastic change in the shape of the aluminum alloy ingot and the heat generated by the friction between the aluminum material and the die. Therefore, cooling treatment is required. The method of cooling the die in the solution disclosed in the prior art has poor cooling uniformity, which in turn affects the quality of the processed product. Utility Model Content

[0003] The utility model aims to provide a control system for an extrusion die. The control system for the extrusion die can realize uniform cooling of the extruded product on the basis of realizing the forming of aluminum profiles to improve the quality of the product.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a control system of an extrusion mold, comprising: a mold body for forming aluminum profiles and a liquid nitrogen cooling module, the liquid nitrogen pipeline of the liquid nitrogen cooling module is arranged in the mold body, a cavity is formed between the inner mold core and the outer mold core of the mold body, a feed nozzle connected to the cavity is installed at the front end of the mold body, at least one identification chip is installed at the front end of the mold body, and a plurality of temperature probes arranged at intervals along the length direction thereof are installed on the mold body, and a controller is electrically connected to the identification chip, the temperature probe and the control unit of the liquid nitrogen cooling module respectively, and is used to control the flow rate of the cooling medium in the liquid nitrogen pipeline through the control unit of the liquid nitrogen cooling module according to the temperature data collected from the temperature probe.

[0005] The further improved scheme in the above technical scheme is as follows:

[0006] 1. In the above solution, the identification chip is an RFID identification chip with built-in extrusion die information.

[0007] 2. In the above solution, the temperature probe is a thermocouple induction probe.

[0008] 3. In the above solution, the mold body further includes: a forming mold with a mold cavity and a plurality of shaping molds sequentially arranged behind the forming mold.

[0009] 4. In the above scheme, the shaping mold close to the forming mold is spaced apart from the forming mold.

[0010] 5. In the above solution, a shaping channel corresponding to the aluminum profile is provided in the shaping mold.

[0011] 6. In the above solution, liquid nitrogen pipelines are arranged on the outside of the shaping mold and around the shaping through holes.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The control system of the extrusion die of the utility model is characterized in that at least one identification chip is installed at the front end of the die body, a plurality of temperature probes arranged at intervals along the length direction thereof are installed on the die body, a controller is electrically connected to the identification chip, the temperature probe and the control unit of the liquid nitrogen cooling module respectively, and is used to control the flow rate of the cooling medium in the liquid nitrogen pipeline through the control unit of the liquid nitrogen cooling module according to the temperature data collected from the temperature probe, so that on the basis of realizing the forming of the aluminum profile, the uniform cooling of the extruded product can be realized to improve the quality of the product, and the real-time adjustment of the cooling temperature can be realized through real-time monitoring of the temperature and control of the flow rate of the cooling medium, so as to further improve the cooling effect; in addition, the utility model has a forming die with a cavity and a plurality of shaping dies arranged in sequence behind the forming die, and the shaping die close to the forming die is arranged at intervals from the forming die, so that the extruded aluminum profile can be rapidly cooled and initially shaped, and then further shaped step by step, so as to ensure the appearance and shape accuracy of the product, and improve the quality of the product and the processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attached Figure 1 This is a front view of the overall structure of the extrusion die of the utility model;

[0015] Attached Figure 2 This is an enlarged view of the local structure of the extrusion die of the utility model;

[0016] Attached Figure 3 It is a partial structural cross-sectional view of the extrusion die of the utility model from one viewing angle;

[0017] Attached Figure 4 It is a partial structural cross-sectional view of the extrusion die of the utility model from another perspective;

[0018] Attached Figure 5 The electrical schematic diagram of the control system of the extrusion die of the utility model.

[0019] In the above figures: 1. Molding mold; 11. Inner mold core; 12. Outer mold core; 21. Liquid nitrogen pipeline; 22. Control unit; 3. Cavity; 4. Feed nozzle; 5. Identification chip; 6. Temperature probe; 7. Controller; 8. Molding mold; 81. Molding through hole. DETAILED DESCRIPTION

[0020] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0021] Embodiment 1: A control system for an extrusion mold, comprising: a mold body for forming aluminum profiles and a liquid nitrogen cooling module, wherein a liquid nitrogen pipeline 21 of the liquid nitrogen cooling module is arranged in the mold body, a cavity 3 is formed between an inner mold core 11 and an outer mold core 12 of the mold body, a feed nozzle 4 connected to the cavity 3 is installed at the front end of the mold body, at least one identification chip 5 is installed at the front end of the mold body, a plurality of temperature probes 6 arranged at intervals along its length direction are installed on the mold body, a controller 7 is electrically connected to the identification chip 5, the temperature probe 6 and the control unit 22 of the liquid nitrogen cooling module, respectively, and is used to control the flow rate of the cooling medium in the liquid nitrogen pipeline 21 through the control unit 22 of the liquid nitrogen cooling module according to the temperature data collected from the temperature probe 6.

[0022] The identification chip 5 is an RFID identification chip with built-in extrusion mold information, which is convenient for quickly and effectively distinguishing different product molds, improving production efficiency and reducing the labor intensity of operators; the temperature probe 6 is a thermocouple induction probe.

[0023] Embodiment 2: A control system for an extrusion mold, comprising: a mold body for forming aluminum profiles and a liquid nitrogen cooling module, wherein a liquid nitrogen pipeline 21 of the liquid nitrogen cooling module is arranged in the mold body, a cavity 3 is formed between an inner mold core 11 and an outer mold core 12 of the mold body, a feed nozzle 4 connected to the cavity 3 is installed at the front end of the mold body, at least one identification chip 5 is installed at the front end of the mold body, a plurality of temperature probes 6 arranged at intervals along its length direction are installed on the mold body, a controller 7 is electrically connected to the identification chip 5, the temperature probe 6 and the control unit 22 of the liquid nitrogen cooling module, respectively, and is used to control the flow rate of the cooling medium in the liquid nitrogen pipeline 21 through the control unit 22 of the liquid nitrogen cooling module according to the temperature data collected from the temperature probe 6.

[0024] The mold body further comprises: a molding mold 1 having a molding cavity 3 and a plurality of shaping molds 8 sequentially arranged behind the molding mold 1; the shaping mold 8 close to the molding mold 1 is spaced apart from the molding mold 1;

[0025] The shaping die 8 is provided with a shaping through hole 81 corresponding to the aluminum profile, which can be used to quickly cool the extruded aluminum profile for preliminary shaping and then further reshape it step by step to ensure the appearance and shape accuracy of the product and improve the quality of the product and the processing efficiency. The two opposite side walls of the shaping through hole 81 are set as inclined surfaces, and the distance between the two inclined surfaces gradually increases in the direction away from the forming die 1, which is convenient for final demoulding; liquid nitrogen pipelines 21 are provided on the shaping die 8 and on the outside of the shaping through hole 81 around it.

[0026] When in use, the aluminum substrate in a molten state after high-temperature treatment enters the forming mold through the feed nozzle under the action of the external driving mechanism to realize the forming of the aluminum profile to be processed. In this process, the nitrogen cooling module sets a liquid nitrogen coil in the mold body and buries the temperature probe in the mold body to sense the mold temperature. The mold is cooled by liquid nitrogen, the temperature probe monitors the mold temperature, the controller monitors the temperature, and the RFID identification chip is used to quickly and effectively identify different product molds, which improves production efficiency and reduces the labor intensity of operators. On the basis of realizing the forming of aluminum profiles, it can not only realize uniform cooling of the extruded products to improve the quality of the products, but also realize real-time adjustment of the cooling temperature through real-time monitoring of the temperature and control of the flow rate of the cooling medium, thereby further improving the cooling effect.

[0027] When the control system of the extrusion die is used, on the basis of realizing the forming of the aluminum profile, the uniform cooling of the extruded product can be realized to improve the quality of the product, and the real-time adjustment of the cooling temperature can be realized by real-time monitoring of the temperature and control of the flow rate of the cooling medium, thereby further improving the cooling effect;

[0028] In addition, the extruded aluminum profile can be quickly cooled down for initial shaping and then further reshaped step by step to ensure the appearance and shape accuracy of the product and improve the product quality and processing efficiency.

[0029] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A control system for an extrusion die, comprising: A mold body and a liquid nitrogen cooling module for forming aluminum profiles, wherein a liquid nitrogen pipeline (21) of the liquid nitrogen cooling module is arranged in the mold body, a mold cavity (3) is formed between an inner mold core (11) and an outer mold core (12) of the mold body, and a feed nozzle (4) connected to the mold cavity (3) is installed at the front end of the mold body, characterized in that at least one identification chip (5) is installed at the front end of the mold body, a plurality of temperature probes (6) are installed on the mold body and are arranged at intervals along the length direction thereof, and a controller (7) is electrically connected to the identification chip (5), the temperature probe (6) and a control unit (22) of the liquid nitrogen cooling module respectively, and is used to control the flow rate of the cooling medium in the liquid nitrogen pipeline (21) through the control unit (22) of the liquid nitrogen cooling module according to the temperature data collected from the temperature probe (6).

2. The control system of the extrusion die according to claim 1, characterized in that: The identification chip (5) is an RFID identification chip with built-in extrusion die information.

3. The control system of the extrusion die according to claim 1, characterized in that: The temperature probe (6) is a thermocouple induction probe.

4. The control system of the extrusion die according to claim 1, characterized in that: The mold body further comprises: a molding mold (1) having a molding cavity (3) and a plurality of shaping molds (8) arranged in sequence behind the molding mold (1).

5. The control system of the extrusion die according to claim 4, characterized in that: The shaping die (8) close to the shaping die (1) is arranged at a distance from the shaping die (1).

6. The control system of the extrusion die according to claim 4 or 5, characterized in that: The shaping die (8) is provided with a shaping through hole (81) corresponding to the aluminum profile.

7. The control system of the extrusion die according to claim 4, characterized in that: Liquid nitrogen pipelines (21) are arranged on the shaping mold (8) and on the outer sides of the shaping through holes (81).

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