Efficient injection mold based on intelligent temperature control and manufacturing method thereof

Abstract

The invention discloses an efficient injection mold based on intelligent temperature control and a manufacturing method thereof.The mold comprises an upper mold plate and a lower mold plate, a mold cavity is formed in the bottom end of the upper mold plate, a male mold is arranged at the top end of the lower mold plate, an injection molding cavity is formed in the bottom end of the lower mold plate, a temperature sensor, a first cooling runner and a second cooling runner are arranged on the side of the mold cavity, and the first cooling runner and the second cooling runner are distributed in parallel at intervals; the liquid inlet end is connected with a speed-adjustable water pump through an electromagnetic valve, and a distance sensor is arranged on the side face of the upper die plate. The manufacturing method comprises the steps of template processing, cooling flow channel forming, sensor installation, cooling system connection and calibration and the like. The temperature sensor and the distance sensor are matched with the electromagnetic valve and the water pump, rapid cooling during mold closing, reasonable temperature control during mold opening and blockage prevention are achieved, reasonable cooling runner layout and precise machining are combined, the forming precision and the production efficiency are improved, and stable and efficient injection molding is ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molds, and in particular to a high-efficiency injection mold based on intelligent temperature control and a manufacturing method thereof. Background Art

[0002] Injection molds are crucial molding equipment in the plastics processing industry, and their performance directly impacts the quality and production efficiency of plastic products. During the injection molding process, mold temperature control is crucial. Proper mold temperature can enhance the fluidity of the plastic melt, improve the quality of the finished product, and shorten the molding cycle.

[0003] However, existing injection molds have some shortcomings in temperature control. For example, the distribution of cooling channels is not rational, resulting in uneven mold temperature and affecting the molding accuracy of the product. The cooling system control is not intelligent enough and cannot be adjusted in real time according to the actual state of the mold and production needs, which can easily lead to low cooling efficiency and energy waste. In addition, during the mold opening and closing processes, the cooling water flow rate and the opening and closing of the cooling channels cannot be well controlled. This can prevent the injected material from reaching the mold cavity and cause blockage, affecting production continuity and product quality.

[0004] Therefore, how to provide an efficient injection mold based on intelligent temperature control and a manufacturing method thereof to solve the problems existing in the prior art is of great significance to its application. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a high-efficiency injection mold based on intelligent temperature control and a manufacturing method thereof to solve the problem.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A high-efficiency injection mold based on intelligent temperature control includes an upper template and a lower template. The bottom end of the upper template is provided with a mold cavity, the top end of the lower template is provided with a punch, and the bottom end of the lower template is provided with an injection cavity. A temperature sensor is installed on the side of the mold cavity. Multiple cooling channels 1 and cooling channels 2 are evenly distributed on the side of the mold cavity. The cooling channels 1 and cooling channels 2 are distributed at intervals and arranged in parallel.

[0008] The liquid inlet end of the cooling channel one is connected through connecting pipe four, and the liquid outlet end of the cooling channel one is connected through connecting pipe one; the liquid inlet end of the cooling channel two is connected through connecting pipe three, and the liquid outlet end of the cooling channel two is connected through connecting pipe two.

[0009] The liquid outlet end of the connecting pipe 2 is connected to the return pipe 2, and the liquid outlet end of the connecting pipe 1 is connected to the return pipe 1; the liquid inlet end of the connecting pipe 3 is installed with an electromagnetic valve 1, and the liquid inlet end of the electromagnetic valve 1 is installed with a water pump 2; the liquid inlet end of the connecting pipe 4 is installed with an electromagnetic valve 2, and the liquid inlet end of the electromagnetic valve 2 is installed with a water pump 1, and both the water pump 1 and the water pump 2 are adjustable speed water pumps.

[0010] A distance sensor is installed on the side of the upper template.

[0011] The manufacturing method thereof comprises the following steps:

[0012] S1: Processing the upper and lower templates, and opening a mold cavity at the bottom end of the upper template, and setting a punch at the top end of the lower template so that the punch and the mold cavity cooperate to form an injection cavity;

[0013] S2: A plurality of parallel and spaced cooling channels 1 and 2 are provided on the side of the mold cavity, and are connected to the liquid inlet through connecting pipes 4 and 3, and to the liquid outlet through connecting pipes 1 and 2 respectively;

[0014] S3: Install a temperature sensor on the side of the mold cavity to monitor the temperature of the mold cavity in real time;

[0015] S4: Install a distance sensor on the side of the upper template to detect the mold closing state;

[0016] S5: Connect water pump 1 and water pump 2 to the liquid inlet ends of cooling channel 1 and cooling channel 2 through solenoid valve 2 and solenoid valve 1, respectively, to form an independently controllable cooling circulation system;

[0017] S6: Connecting the liquid outlet ends of cooling channel 1 and cooling channel 2 to an external coolant recovery device through return pipe 1 and return pipe 2 respectively;

[0018] S7: Use CNC machining technology to precisely process cooling channel 1 and cooling channel 2 to ensure that they are evenly distributed and maintain a preset distance from the mold cavity;

[0019] S8: Calibrate the temperature sensor and distance sensor to ensure that their signal feedback accuracy meets the requirements of the intelligent temperature control system.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. By setting cooling channel 1 and cooling channel 2 with intervals and parallel distribution on the side of the mold cavity, the mold cavity can be evenly cooled, the consistency of the mold temperature can be improved, and the molding accuracy of the product can be improved.

[0022] 2. A temperature sensor monitors the mold cavity temperature in real time, while a distance sensor detects the mold status. Combined with a solenoid valve and an adjustable-speed water pump, this system achieves intelligent control of the cooling system. During mold closing, the system automatically accelerates the cooling water flow rate and opens dual cooling channels for rapid cooling and molding, shortening the molding cycle and improving production efficiency. During mold opening, the system reduces the cooling water flow rate and closes one cooling channel to maintain the appropriate mold cavity temperature. This prevents clogging caused by low-temperature injection molding, ensuring production continuity and product quality.

[0023] 3. The cooling channels are precisely machined using CNC machining technology to ensure uniform distribution of the cooling channels and a preset spacing from the mold cavity, further improving the cooling effect and mold stability. The sensors are calibrated to ensure the accuracy of signal feedback, enabling the intelligent temperature control system to work more accurately.

[0024] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiment of the present application in conjunction with the accompanying drawings.

[0025] Based on the detailed description of the specific embodiments of the present application in conjunction with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without inventive work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a cross-sectional view of the present invention.

[0029] In the figure: 1. Upper mold plate; 2. Lower mold plate; 3. Injection cavity; 4. Punch; 5. Mold cavity; 6. Cooling channel 1; 7. Cooling channel 2; 8. Temperature sensor; 9. Distance sensor; 10. Connecting pipe 2; 11. Return pipe 2; 12. Solenoid valve 1; 13. Connecting pipe 1; 14. Solenoid valve 2; 15. Return pipe 1; 16. Water pump 1; 17. Connecting pipe 3; 18. Connecting pipe 4; 19. Water pump 2. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. In the following description, specific details such as specific configurations and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures has been omitted in the embodiments.

[0031] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0032] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the previous and subsequent associated objects are in an "or" relationship.

[0033] It should also be noted that, in this document, relational terms such as first and second are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include," "comprises," or any other variations thereof are intended to cover non-exclusive inclusion.

[0034] See also Figure 1-2 The present invention provides a technical solution for an efficient injection mold and a manufacturing method thereof based on intelligent temperature control:

[0035] A high-efficiency injection mold based on intelligent temperature control includes an upper mold plate 1 and a lower mold plate 2. The bottom end of the upper mold plate 1 is provided with a mold cavity 5, the top end of the lower mold plate 2 is provided with a punch 4, and the bottom end of the lower mold plate 2 is provided with an injection cavity 3. The punch 4 cooperates with the mold cavity 5 to form the injection cavity 3 for injection molding.

[0036] Temperature sensors 8 are installed on the sides of mold cavity 5 to monitor its temperature in real time and transmit the temperature signal to the intelligent control system. Multiple cooling channels 1 6 and 2 7 are evenly distributed along the sides of mold cavity 5. These channels are spaced apart and arranged in parallel. This distribution ensures that the coolant flows evenly around mold cavity 5, achieving uniform cooling of the cavity 5.

[0037] The liquid inlet of cooling channel 1 (6) is connected via connecting pipe 4 (18), and the liquid outlet is connected via connecting pipe 1 (13). The liquid inlet of cooling channel 2 (7) is connected via connecting pipe 3 (17), and the liquid outlet is connected via connecting pipe 2 (10). The liquid outlet of connecting pipe 2 (10) is connected to return pipe 2 (11), and the liquid outlet of connecting pipe 1 (13) is connected to return pipe 1 (15), which is used to return the cooled coolant to an external coolant recovery device.

[0038] The liquid inlet end of connecting pipe 3 (17) is equipped with solenoid valve 12, which is also connected to water pump 2 (19). The liquid inlet end of connecting pipe 4 (18) is equipped with solenoid valve 2 (14), which is also connected to water pump 16. Both water pumps 16 and 19 are adjustable-speed pumps. An intelligent control system controls the opening and closing of solenoid valves 12 and 14, as well as the speeds of water pumps 16 and 19, achieving independent control of cooling channel 1 (6) and cooling channel 2 (7).

[0039] A distance sensor 9 is installed on the side of the upper mold plate 1 to detect the mold closing state of the upper mold plate 1 and the lower mold plate 2, that is, to detect whether the mold is completely closed.

[0040] Manufacturing method

[0041] S1: First, the upper mold plate 1 and the lower mold plate 2 are processed, using appropriate materials and processing techniques to ensure the strength and precision of the mold plates. A mold cavity 5 is formed at the bottom of the upper mold plate 1, and a punch 4 is set at the top of the lower mold plate 2. The punch 4 and the mold cavity 5 cooperate to accurately form the injection cavity 3, ensuring the spatial precision of the injection molding.

[0042] S2: Multiple parallel, spaced cooling channels 1 (6) and 2 (7) are created along the sides of the mold cavity 5, according to design requirements. Precision machining using CNC machining ensures uniform distribution of the cooling channels and maintains a predetermined spacing from the mold cavity 5 to ensure effective cooling. The inlets of cooling channel 1 (6) and cooling channel 2 (7) are then connected via connecting pipes 4 (18) and 3 (17), respectively, and their outlets are connected via connecting pipes 1 (13) and 2 (10), forming a preliminary connection for the cooling channels.

[0043] S3: Install a temperature sensor 8 at a suitable position on the side of the mold cavity 5 to ensure that the temperature sensor 8 can accurately and in real time monitor the temperature of the mold cavity 5. The temperature sensor 8 is connected to the intelligent control system to transmit the real-time temperature signal to the control system.

[0044] S4: A distance sensor 9 is installed on the side of the upper mold plate 1 to detect the mold closing state. The distance sensor 9 can sense the distance change between the upper mold plate 1 and the lower mold plate 2. When the mold is closed, the distance sensor 9 sends a mold closing signal, and when the mold is opened, it sends a mold opening signal, providing mold status information to the intelligent control system.

[0045] S5: Connect water pump 16 to the liquid inlet of cooling channel 16 through solenoid valve 214, and connect water pump 219 to the liquid inlet of cooling channel 27 through solenoid valve 12, forming an independently controllable cooling circulation system. Each cooling channel can be individually controlled by its corresponding solenoid valve and water pump, achieving precise adjustment of the cooling flow rate and flow rate.

[0046] S6: Connect the liquid outlet of cooling channel 1-6 to an external coolant recovery device through return pipe 1-15, and connect the liquid outlet of cooling channel 2-7 to an external coolant recovery device through return pipe 2-11, so as to realize the recycling of coolant and save energy and resources.

[0047] S7: When machining cooling channel 1 6 and cooling channel 2 7, strictly utilize CNC machining technology to ensure machining accuracy. Through CNC programming and precision machining equipment, ensure that the cooling channels are evenly distributed and that the spacing between them and the mold cavity 5 meets design requirements, allowing the coolant to evenly cool the mold cavity 5.

[0048] S8: Calibrate the installed temperature sensor 8 and distance sensor 9. Use professional calibration equipment and methods to test the sensor's signal feedback accuracy to ensure that it can accurately transmit the mold cavity temperature and mold status signals to the intelligent temperature control system, so that the intelligent temperature control system can perform corresponding control operations based on the accurate signals.

[0049] Working principle:

[0050] During the injection molding process, when distance sensor 9 detects mold closing, it sends a mold closing signal to the intelligent control system. Upon receiving the signal, the control system opens solenoid valve 12 and solenoid valve 2 14, simultaneously increasing the speed of water pump 16 and water pump 2 19. This activates cooling channel 1 6 and cooling channel 2 7 simultaneously, accelerating the cooling water flow rate and rapidly cooling mold cavity 5, promoting the formation of the plastic melt and shortening the molding cycle.

[0051] When distance sensor 9 detects mold opening, it issues a mold opening signal. The control system closes one of the solenoid valves (for example, solenoid valve 12, stopping cooling channel 2 7). It also reduces the speed of water pump 16 and the cooling water flow rate to maintain a suitable temperature in mold cavity 5 and prevent blockage caused by injection molding material not being able to reach the cavity due to low temperature.

[0052] The temperature sensor 8 monitors the temperature of the mold cavity 5 in real time and feeds back the temperature signal to the control system. The control system can further adjust the speed of the water pump and the switch of the solenoid valve according to the temperature conditions to achieve precise control of the mold cavity temperature and ensure the stability and efficiency of the injection molding process.

[0053] The foregoing description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any variation, modification, replacement, integration, or parameter change to these embodiments, which is within the spirit and principles of the present invention and which achieves the same functionality through conventional substitutions, without departing from the principles and spirit of the present invention, falls within the scope of protection of the present invention.

Claims

1. A high-efficiency injection mold based on intelligent temperature control, characterized in that: include: An upper template (1) and a lower template (2), wherein a mold cavity (5) is provided at the bottom end of the upper template (1), a punch (4) is provided at the top end of the lower template (2), an injection cavity (3) is provided at the bottom end of the lower template (2), a temperature sensor (8) is installed on the side of the mold cavity (5), and a plurality of cooling channels 1 (6) and cooling channels 2 (7) are uniformly distributed on the side of the mold cavity (5), the cooling channels 1 (6) and cooling channels 2 (7) are distributed at intervals, and the cooling channels 1 (6) and cooling channels 2 (7) are arranged in parallel.

2. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: The liquid inlet end of the cooling channel 1 (6) is connected via a connecting pipe 4 (18), and the liquid outlet end of the cooling channel 1 (6) is connected via a connecting pipe 1 (13).

3. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: The liquid inlet end of the cooling channel 2 (7) is connected via the connecting pipe 3 (17), and the liquid outlet end of the cooling channel 2 (7) is connected via the connecting pipe 2 (10).

4. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: The liquid outlet end of the second connecting pipe (10) is connected to the second return pipe (11), and the liquid outlet end of the first connecting pipe (13) is connected to the first return pipe (15).

5. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: The liquid inlet end of the connecting pipe three (17) is installed with a solenoid valve one (12), and the liquid inlet end of the solenoid valve one (12) is installed with a water pump two (19). The liquid inlet end of the connecting pipe four (18) is installed with a solenoid valve two (14), and the liquid inlet end of the solenoid valve two (14) is installed with a water pump one (16).

6. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: The water pump 1 (16) and the water pump 2 (19) are both speed-adjustable water pumps.

7. The high-efficiency injection mold based on intelligent temperature control according to claim 1, characterized in that: A distance sensor (9) is installed on the side of the upper template (1).

8. A high-efficiency injection mold based on intelligent temperature control according to claims 1-7, characterized in that: The manufacturing method thereof comprises the following steps: S1: processing an upper template (1) and a lower template (2), and opening a mold cavity (5) at the bottom end of the upper template (1), and setting a punch (4) at the top end of the lower template (2), so that the punch (4) and the mold cavity (5) cooperate to form an injection cavity (3); S2: A plurality of parallel and spaced cooling channels 1 (6) and 2 (7) are provided on the side of the mold cavity (5), and are connected to the liquid inlet through connecting pipe 4 (18) and connecting pipe 3 (17), and to the liquid outlet through connecting pipe 1 (13) and connecting pipe 2 (10); S3: Installing a temperature sensor (8) on the side of the mold cavity (5) to monitor the temperature of the mold cavity (5) in real time; S4: A distance sensor (9) is installed on the side of the upper mold plate (1) to detect the mold closing state.

9. The manufacturing method according to claim 8, characterized in that Also includes: S5: Connect water pump 1 (16) and water pump 2 (19) to the liquid inlet ends of cooling channel 1 (6) and cooling channel 2 (7) through solenoid valve 2 (14) and solenoid valve 1 (12) respectively, to form an independently controllable cooling circulation system; S6: Connect the liquid outlet ends of cooling channel 1 (6) and cooling channel 2 (7) to an external coolant recovery device through return pipe 1 (15) and return pipe 2 (11) respectively.

10. The manufacturing method according to claim 8 or 9, characterized in that: Also includes: S7: Using CNC machining technology to precisely machine cooling channel 1 (6) and cooling channel 2 (7), ensuring that they are evenly distributed and maintain a preset distance from the mold cavity (5); S8: Calibrate the temperature sensor (8) and the distance sensor (9) to ensure that their signal feedback accuracy meets the requirements of the intelligent temperature control system.

Images