A light-penetration type visualized injection molding system and method with temperature and pressure measurement

Abstract

The application relates to a light penetration type visual injection molding system and method with temperature and pressure measurement functions. The injection molding system comprises a movable mold, a camera, a first glass, a cavity insert, a second glass, a light emitting part, a fixed mold, a pressure measuring device and a temperature measuring device. The movable mold is provided with a mounting groove, an observation window, a first fixing groove and a second fixing groove, the camera faces the observation window, the first glass, the cavity insert, the second glass and the light emitting part are sequentially arranged in the mounting groove along a first direction, the fixed mold is attached to or adjacent to the movable mold, the pressure measuring device is arranged in the first fixing groove, and the temperature measuring device is arranged in the second fixing groove. The injection molding system of the embodiment of the application has the advantages of simple structure, compact layout, no need to customize the fixed mold, no need to transform the injection molding machine, real-time observation of the melt flow state, synchronous acquisition of pressure data and temperature data, low manufacturing cost, reduction of experimental cost and experimental time, and meeting of different experimental research requirements.

Description

Technical Field

[0001] This invention relates to the field of injection molding technology, and in particular to a light-transmitting visualization injection molding system and method that combines temperature and pressure measurement. Background Technology

[0002] Dynamic visualization of injection molding is a technology that uses specially designed molds to observe the injection molding process in real time and reflect the true flow state of the melt. It is of great significance for studying the injection molding process, discovering unknown phenomena, explaining the causes of molding defects, and finding ways to avoid defects. However, related technologies face challenges with light-transmitting visualization molds, including complex mold structures, separate customization of the fixed and moving molds, and modifications to the injection molding machine. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention propose a light-transmitting visualization injection molding system that combines temperature and pressure measurement. This system features a simple structure and compact layout, requires no custom mold making or modification of the injection molding machine, can observe the melt flow state in real time, and simultaneously collect pressure and temperature data. Furthermore, it has low manufacturing costs, reduces experimental costs and time, and meets the needs of various experimental research.

[0004] The embodiments of the present invention propose a light-transmitting visualization injection molding method that combines temperature and pressure measurement.

[0005] This invention relates to a light-transmitting visualization injection molding system that combines temperature and pressure measurement, comprising a moving mold, a camera, a first glass, a cavity insert, a second glass, a light-emitting element, a fixed mold, a pressure measuring device, a temperature measuring device, and a data display device. The moving mold has a mold-closing end face and a camera end face. The mold-closing end face has a mounting groove, and the camera end face has an observation window communicating with the mounting groove. The moving mold also has a first fixing groove and a second fixing groove. The camera is mounted on the moving mold and faces the observation window. The first glass, the cavity insert, the second glass, and the light-emitting element are sequentially arranged in the mounting groove along a first direction. The first glass is adjacent to the observation window. The first glass, the cavity insert, the second glass, and the moving mold define a cavity. The window, the light-emitting element, and the camera are opposite each other in the first direction. The cavity insert and the moving mold define a first flow channel. The fixed mold is fitted to or adjacent to the mold closing end face. A second flow channel is defined between the fixed mold and the moving mold. The second flow channel, the first flow channel, and the cavity are interconnected to form a melt flow channel. The first fixed groove and the second fixed groove are connected to the melt flow channel. The pressure measuring device is disposed in the first fixed groove. The temperature measuring device is disposed in the second fixed groove. The data display device is connected to the camera, the pressure measuring device, and the temperature measuring device.

[0006] The light-transmitting visualization injection molding system of this invention, which combines temperature and pressure measurement, has a simple structure and compact layout. It does not require customized molds or modification of injection molding machines. It can observe the melt flow state in real time, and simultaneously collect pressure and temperature data. Moreover, it has low manufacturing cost, which can also reduce experimental costs and experimental time, and meet the needs of different experimental research.

[0007] In some embodiments, the light-emitting element is spaced apart from the second glass in the first direction.

[0008] In some embodiments, the bottom of the mounting groove is provided with a first groove, a first boss, a second groove, a second boss and a third groove in sequence along the first direction. The first glass is installed in the first groove, the cavity insert is installed on the first boss, the second glass is installed in the second groove, the light-emitting element is installed in the third groove, and the depth of the mounting groove at the second boss is greater than or equal to the depth at the first boss.

[0009] In some embodiments, the first fixing groove extends along a second direction, which is perpendicular to the first direction. The first fixing groove includes a first mounting cavity and a first communicating cavity. The first mounting cavity communicates with the cavity. The wall surface of the cavity communicating with the first mounting cavity is a first wall surface. The first communicating cavity is open. The pressure measuring device includes a pressure sensor, a pressure connector, a first wire, and a pressure acquisition device. The pressure sensor is connected to the pressure connector. The pressure sensor and the pressure connector are disposed in the first mounting cavity. The pressure measuring end of the pressure sensor is flush with the first wall surface. The pressure connector is adjacent to the first communicating cavity. One end of the first wire is connected to the pressure connector, and the other end of the first wire is connected to the pressure acquisition device. The pressure acquisition device is connected to the data display device.

[0010] In some embodiments, the pressure measuring device further includes a first pressure plate disposed in the first communicating cavity, the first pressure plate abutting against the pressure connector, and the other end of the first wire passing through the first pressure plate and connected to the pressure acquisition instrument.

[0011] In some embodiments, the moving mold is provided with a first through groove, one end of the first through groove is connected to the first through cavity, and the other end of the first through groove is located on the camera end face. The first wire extending out of the first pressure plate extends out of the moving mold through the first through groove.

[0012] In some embodiments, the second fixing groove includes a second mounting cavity and a second communicating cavity. The second mounting cavity communicates with the melt flow channel. One side of the second communicating cavity communicates with the second mounting cavity, and the other side of the second communicating cavity is open. The temperature measuring device includes a mounting block, a thermocouple, a second wire, and a temperature acquisition device. The mounting block is disposed in the second mounting cavity and has a first through hole that communicates with the melt flow channel. The thermocouple is disposed in the first through hole, and the temperature measuring end of the thermocouple is located in the second flow channel. One end of the second wire is connected to the thermocouple, and the other end of the second wire passes through the second communicating cavity and is connected to the temperature acquisition device. The temperature acquisition device is connected to the data display device.

[0013] In some embodiments, the second fixing groove is located at the end of the melt flow channel, the moving mold is provided with the second mounting cavity at the second flow channel, the mounting block is provided with a fourth groove, the first through hole is located on the bottom wall surface of the fourth groove, the wall surface of the fourth groove is flush with the wall surface of the second flow channel on the moving mold, the fourth groove is a through groove extending in the melt flow direction, or, the mounting block is provided with a third boss at one end of the fourth groove to close the end of the melt flow channel.

[0014] In some embodiments, the temperature sensing end of the thermocouple is bent toward the direction of melt flow;

[0015] And / or, the second communicating cavity is open at one end in the first direction and located on the camera end face.

[0016] The light-transmitting visualization injection molding method of this invention, which combines temperature and pressure measurement, involves injecting melt into the melt flow channel, activating the light-emitting element, capturing the image of the cavity using the camera, measuring pressure using the pressure measuring device, measuring temperature using the temperature measuring device, and displaying the image, pressure, and temperature using the data display device. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of the light-transmitting visualization injection molding system with both temperature and pressure measurement according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the moving mold according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 A partial sectional view along line AA;

[0020] Figure 4 yes Figure 3 A partial sectional view along line BB;

[0021] Figure 5 Figure 1 is a schematic diagram of the structure of the fixing block in an embodiment of the present invention. (a) is a schematic diagram of the fixing block corresponding to the open melt flow channel. (b) is a cross-sectional view of Figure (a). (c) is a schematic diagram of the fixing block corresponding to the closed melt flow channel. (d) is a cross-sectional view of Figure (c).

[0022] Figure 6 A schematic diagram of the cavity insert according to an embodiment of the present invention;

[0023] Figure 7 This is a set of flow state diagrams of the melt inside the mold cavity at different experimental times;

[0024] Figure 8 It is a set of experimentally measured temperature change curves over time;

[0025] Figure 9 It is a set of experimentally measured pressure change curves over time;

[0026] Figure label:

[0027] 100 injection molding system;

[0028] Moving mold 1, observation window 11, mounting groove 12, first boss 121, second boss 122, first fixing groove 13, first mounting cavity 131, first connecting cavity 132, second fixing groove 14, second mounting cavity 141, second connecting cavity 142, first through groove 15;

[0029] Camera 2, first glass 31, second glass 32, cavity insert 4, fifth groove 41, sixth groove 42, light-emitting element 5, fixed mold 6;

[0030] The pressure measuring device 7, pressure sensor 71, pressure connector 72, first wire 73, pressure acquisition instrument 74, and first pressure plate 75;

[0031] Temperature measuring device 8, mounting block 81, first through hole 811, fourth groove 812, third boss 813, second through hole 814, thermocouple 82, second wire 83, temperature acquisition instrument 84;

[0032] Data display device 9, second pressure plate 101, support frame 102;

[0033] Cavity 10, first flow channel 20, second flow channel 30. Detailed Implementation

[0034] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0035] The following is a reference to the appendix. Figures 1 to 9 This invention provides a detailed description of an optically transmitted visualization injection molding system 100 and method that combines temperature and pressure measurement according to an embodiment of the present invention.

[0036] like Figures 1 to 6 As shown, an embodiment of the present invention provides a light-transmitting visualization injection molding system 100 that combines temperature and pressure measurement, including a moving mold 1, a camera 2, a first glass 31, a cavity insert 4, a second glass 32, a light-emitting element 5, a fixed mold 6, a pressure measuring device 7, a temperature measuring device 8, and a data display device 9.

[0037] The moving mold 1 has a mold-closing end face and a camera end face. A mounting groove 12 is provided on the mold-closing end face, and an observation window 11 is provided on the camera end face. The observation window 11 communicates with the mounting groove 12. The moving mold 1 also has a first fixing groove 13 and a second fixing groove 14. A camera 2 is mounted on the moving mold 1, facing the observation window 11. A first glass 31, a cavity insert 4, a second glass 32, and a light-emitting element 5 are arranged sequentially in the mounting groove 12 along a first direction. The first glass 31 is adjacent to the observation window 11. The first glass 31, the cavity insert 4, the second glass 32, and the moving mold 1 define a cavity 10. The cavity 10, the observation window 11, the light-emitting element 5, and the camera 2 are arranged in the first direction (e.g., along the first direction). Figure 1 If the light source 5 is positioned relative to the front and back of the mold (in the front and back direction), then the light emitted by the light source 5 can pass through the cavity 10 and the observation window 11 and illuminate the camera 2. The cavity insert 4 and the moving mold 1 define the first flow channel 20.

[0038] The fixed mold 6 is fitted to or adjacent to the mold closing end face, and the fixed mold 6 and the moving mold 1 define a second flow channel 30. The second flow channel 30, the first flow channel 20 and the cavity 10 are interconnected and form a melt flow channel. The first fixed groove 13 and the second fixed groove 14 are connected to the melt flow channel. The pressure measuring device 7 is located in the first fixed groove 13 and the temperature measuring device 8 is located in the second fixed groove 14. The camera 2, the pressure measuring device 7 and the temperature measuring device 8 are all connected to the data display device 9.

[0039] An embodiment of the present invention provides a light-transmitting visualization injection molding system 100 that combines temperature and pressure measurement, which also includes an injection molding machine (not shown in the figure). The moving mold 1 and the fixed mold 6 are mounted on the injection molding machine, and the injection molding machine drives the moving mold 1 and the fixed mold 6 to close and open.

[0040] like Figures 1 to 4 As shown, the first direction is the same as the front-back direction. Therefore, the camera end face is the front end face of the moving mold, and the mold closing end face is the left end face of the moving mold. The mold closing direction of the fixed mold and the moving mold is in the left-right direction. In the mold closing state, the mold closing end face of the moving mold 1 is attached to the fixed mold 6. When using the light-transmitting visualization injection molding system 100 with temperature and pressure measurement of this embodiment of the invention, the moving mold 1 is assembled first, and then the moving mold 1 and the fixed mold 6 are closed. When assembling the moving mold, the pressure measuring device 7 is first installed in the first fixed groove 13, and the temperature measuring device 8 is installed in the second fixed groove 14. Both the pressure measuring device 7 and the temperature measuring device 8 are connected to the data display device 9. Then, according to the research requirements, a specific cavity insert is selected, and the first glass 31, the cavity insert 4, the second glass 32 and the light-emitting element 5 are installed in the mounting groove 12. Then, the camera 2 is installed on the moving mold 1, so that the camera of the camera 2 faces the observation window 11. The camera 2 is connected to the data display device 9, thereby completing the assembly of the moving mold 1.

[0041] The light-transmitting visualization injection molding system 100 of this invention, which combines temperature and pressure measurement, places the first glass 31 and the second glass 32 on both sides of the cavity insert 4 in the first direction, such that the cavity 10 in the first direction (which is also the width direction of the cavity 10, e.g.) Figure 3 Both sides of the cavity 10 (shown in the front-back direction) are translucent and easy to observe. The cavity 10, the observation window 11, the light-emitting element 5, and the camera 2 are opposite each other in the first direction. On the one hand, the cavity 10, the light-emitting element 5, and the camera 2 are on the same straight line. On the other hand, the light-emitting element 5 and the camera 2 are located on both sides of the cavity 10 in the first direction, so that the light emitted by the light-emitting element 5 can pass through the cavity 10 and shine on the camera 2, so that the camera 2 can capture the image of the melt in the cavity 10, realizing the dynamic visualization of the injection molding process of this injection molding system 100.

[0042] The light-transmitting visualization injection molding system 100 of this invention, which combines temperature and pressure measurement, arranges the camera 2, the first glass 31, the cavity insert 4, the second glass 32, and the light-emitting element 5 along the first direction and mounts them on the moving mold 1. This has the following beneficial effects: ① The relative arrangement of the light-emitting element 5 and the camera 2 in the first direction conforms to the natural law of light propagation in straight lines, reducing light refraction and reflection losses, avoiding the problem of strong light at the edges and weak light in the center of the cavity 10, avoiding affecting the observation effect of the melt within the cavity 10, ensuring a large amount of light transmission in the cavity 10, ensuring sufficient light intake for the camera 2, and ensuring the shooting effect of the camera 2; ② This allows the cavity 10 to achieve the following effects along its length direction (e.g., ...). Figure 1 and Figure 4 The dimensions in the vertical direction of the cavity 10 are all illuminated, so that the light received by the cavity 10 in its length direction is evenly distributed, thereby enabling the camera 2 to capture the overall image of the cavity 10; ③ The camera 2, the first glass 31, the cavity insert 4, the second glass 32 and the light-emitting element 5 are arranged along the first direction and installed on the moving mold 1. This eliminates the need to modify the injection molding machine and the fixed mold 6, simplifies the installation and disassembly process of the components on the injection molding machine, eliminates the need for a specially customized fixed mold, and can use a standard fixed mold, reducing the cost of the injection molding system 100. It also has the advantage of simple structure, enabling a compact layout of components and saving space.

[0043] Furthermore, the first glass 31, the cavity insert 4, the second glass 32, and the moving mold 1 define the cavity 10. By replacing different cavity inserts 4, the thickness, shape, and surface roughness of the cavity 10 can be changed, which has the characteristics of flexible design and can meet different research needs.

[0044] The light-transmitting visualization injection molding system 100 of this invention, which combines temperature and pressure measurement, has a first fixing groove 13 and a second fixing groove 14 on the moving mold 1 to install a pressure measuring device 7 and a temperature measuring device 8, respectively. The arrangement of the first fixing groove 13 and the second fixing groove 14 does not interfere with the setting of the camera 2. The imaging process of the camera 2 does not affect the measurement of the pressure measuring device 7 and the temperature measuring device 8. It can realize imaging, pressure measurement and temperature measurement simultaneously. Compared with related technologies, which conduct experimental testing on one or both of pressure, temperature and video separately, this injection molding system 100 reduces the number of experiments, saves experimental materials and time, and enables the synchronous acquisition of pressure data, temperature data and video data, realizing a one-to-one correspondence between pressure data, temperature data and video data, making the experimental data and results more reliable and convincing.

[0045] Therefore, the light-transmitting visualization injection molding system 100 of this invention, which combines temperature and pressure measurement, has a simple structure and compact layout. It does not require custom mold making or modification of the injection molding machine. It can observe the melt flow state in real time, and simultaneously collect pressure and temperature data. Moreover, it has low manufacturing cost, which can also reduce experimental costs and experimental time, and meet different experimental research needs.

[0046] In some embodiments, the light-emitting element 5 and the second glass 32 are spaced apart in the first direction, and there is a cavity between the light-emitting element 5 and the second glass 32. This provides space for heat dissipation of the light-emitting element 5 during illumination, which is beneficial for heat dissipation of the light-emitting element 5. At the same time, it also provides a certain operating space for the installation of the second glass 32 and the light-emitting element 5, improving the convenience of installing the second glass 32 and the light-emitting element 5 in the mounting groove 12, thereby improving the installation convenience of the injection molding system 100 of the present invention.

[0047] In some embodiments, the bottom of the mounting groove 12 is sequentially provided with a first groove, a first boss 121, a second groove, a second boss 122, and a third groove along the first direction. A first glass 31 is installed in the first groove, a cavity insert 4 is installed on the first boss 121, a second glass 32 is installed in the second groove, and a light-emitting element 5 is installed in the third groove. The depth of the mounting groove 12 at the second boss 122 is greater than or equal to the depth at the first boss 121. The arrangement of the first, second, and third grooves facilitates the positioning and installation of the first glass 31, the second glass 32, and the light-emitting element 5 within the mounting groove 12. The second boss 122 can separate the second glass 32 and the light-emitting element 5, improving the ease of installation of the first glass 31, the cavity insert 4, the second glass 32, and the light-emitting element 5, thereby further improving the ease of installation of the injection molding system 100 of this embodiment.

[0048] In some embodiments, such as Figure 3 As shown, the depth of the mounting groove 12 at the second protrusion 122 is greater than the depth at the first protrusion 121. Therefore, in the depth direction (i.e., the left-right direction) of the mounting groove 12, the second protrusion 122 is lower than the first protrusion 121, thereby increasing the illumination area of ​​the light-emitting element 5 on the second glass 32 and covering the part of the second glass 32 that is lower than the cavity 10. Since the light will be refracted when passing through the second glass 32, the amount of light entering the cavity 10 through the second glass 32 is increased, which helps to increase the amount of light entering the camera 2 and improve the image clarity of the camera 2.

[0049] The structure of cavity insert 4 is as follows Figure 6 As shown, a fifth groove 41 is provided on one side of the cavity insert 4. The fifth groove 41 is a through groove that penetrates the thickness direction of the cavity insert 4. The thickness of the cavity insert 4 is parallel to the first direction. A sixth groove 42 is provided on this side and on both sides adjacent to this side. The sixth groove 42 is an arc-shaped groove and communicates with the fifth groove 41. When installing the cavity insert 4 onto the moving mold 1, the fifth groove 41 is installed facing the bottom of the mounting groove 12. The first glass 31, the wall of the fifth groove 41, the second glass 32, and the first boss 121 define the cavity 10. The wall of the sixth groove 42 and the wall of the mounting groove 12 define the first flow channel 20.

[0050] Specifically, the injection molding system 100 also includes a second pressure plate 101, which abuts against the first glass 31, the cavity insert 4, and the second glass 32. The second pressure plate 101 is connected to the moving mold 1 by bolts to fix the first glass 31, the cavity insert 4, and the second glass 32 within the mounting groove 12 of the moving mold 1. The detachable connection between the second pressure plate 101 and the moving mold 1 facilitates the replacement of the cavity insert 4, further improving the ease of installation of the injection molding system 100 according to this embodiment, reducing installation time, and increasing the efficiency of injection molding experiments.

[0051] The light-emitting element 5 is fixed in the third groove by adhesive or screws. The light-emitting element 5 uses a light strip or LED beads. The light-emitting element 5 is equipped with a battery, or the light-emitting element 5 is connected to an external power source. When the light-emitting element 5 requires an external power source, a groove or through hole is made in the third groove to penetrate the moving mold 1, and the connecting wire is passed through the groove or through hole to lead out the connecting wire to the external power source.

[0052] The first glass 31 is quartz glass, tempered glass or sapphire glass, and the second glass 32 is quartz glass, tempered glass or sapphire glass.

[0053] The injection molding system 100 also includes a support frame 102, which is mounted on the camera end face of the moving mold 1, such as... Figure 1As shown, the support frame is located on the front end face of the moving model 1, and the camera 2 is mounted on the support frame 102. There is a distance between the camera 2 and the observation window 11.

[0054] In some embodiments, the first fixing groove 13 is along the second direction (e.g. Figure 3 Extending in the left-right direction, the second direction is perpendicular to the first direction. The first fixing groove 13 includes a first mounting cavity 131 and a first communicating cavity 132. The first mounting cavity 131 communicates with the cavity 10, and the first mounting cavity 131 is located at the first boss 121. The wall surface of the cavity 10 that communicates with the first mounting cavity 131 is the first wall surface, such as... Figure 3 and Figure 4 As shown, the first wall surface is the right wall surface of the cavity 10. The first connecting cavity 132 is open, and the open side of the first connecting cavity 132 and the open side of the mounting groove 12 are located at opposite ends of the moving mold 1 in this second direction. For example... Figure 3 As shown, the open side of the first connecting cavity 132 is located on the right end face of the moving mold 1.

[0055] The cavity 10 has a certain length, and the moving mold 1 is in the depth direction of the cavity 10 (i.e., as shown in the figure). Figure 3 The right side (as shown in the left-right direction) away from the fixed mold 6 has a large space, which facilitates the machining of the first fixed groove 13 on the moving mold 1. It also provides operating space for the installation and wiring of the pressure measuring device 7 in the first fixed groove 13, which facilitates the installation of the pressure measuring device 7 in the first fixed groove 13 and also facilitates the extension of the connecting wire of the pressure measuring device 7 out of the moving mold 1.

[0056] The pressure measuring device 7 includes a pressure sensor 71, a pressure connector 72, a first lead wire 73, and a pressure acquisition device 74. The pressure sensor 71 is connected to the pressure connector 72, and both are located within the first mounting cavity 131. The pressure measuring end of the pressure sensor 71 is flush with the first wall surface. The pressure connector 72 is adjacent to the first connecting cavity 132. One end of the first lead wire 73 is connected to the pressure connector 72, and the other end is connected to the pressure acquisition device 74. The pressure acquisition device 74 is connected to the data display device 9. The pressure sensor 71 measures the pressure of the melt within the cavity 10 and transmits the pressure data to the pressure acquisition device 74 via the pressure connector 72. The pressure acquisition device 74 then transmits the pressure data to the data display device 9.

[0057] In some embodiments, the pressure measuring device 7 further includes a first pressure plate 75, which is disposed within the first communicating cavity 132. The first pressure plate 75 abuts against the pressure connector 72, and the other end of the first wire 73 passes through the first pressure plate 75 and is connected to the pressure acquisition instrument 74. The pressure sensor 71 and the pressure connector 72 are fixed by the first pressure plate 75, and the first pressure plate 75 is detachably connected to the moving mold 1 by bolts. This facilitates the installation, disassembly, maintenance, and replacement of the pressure measuring device 7, thereby further improving the ease of installation of the injection molding system 100 of this embodiment, reducing the installation time of the injection molding system 100, and improving the efficiency of the injection molding experiment.

[0058] In some embodiments, the moving mold 1 is provided with a first through groove 15. One end of the first through groove 15 is connected to the first connecting cavity 132, and the other end of the first through groove 15 is located on the camera end face of the moving mold 1. The first wire 73 extending out of the first pressure plate 75 extends out of the moving mold 1 through the first through groove 15. The first through groove 15 not only provides a receiving space for the first wire 73 and forms protection for the first wire 73, but also leads the first wire 73 out from the camera end face of the moving mold 1, avoiding interference between the first wire 73 and the injection molding machine, facilitating the installation of the first wire 73, and also facilitating the arrangement of the pressure acquisition instrument 74.

[0059] In some embodiments, the second fixing groove 14 includes a second mounting cavity 141 and a second communicating cavity 142. The second mounting cavity 141 communicates with the melt flow channel, and one side of the second communicating cavity 142 communicates with the second mounting cavity 141, while the other side of the second communicating cavity 142 is open. The temperature measuring device 8 includes a mounting block 81, a thermocouple 82, a second wire 83, and a temperature acquisition device 84. The mounting block 81 is disposed in the second mounting cavity 141 and has a first through hole 811 that communicates with the second flow channel 30. The thermocouple 82 is disposed in the first through hole 811, with its temperature measuring end located in the melt flow channel. One end of the second wire 83 is connected to the thermocouple 82, and the other end of the second wire 83 passes through the second communicating cavity 142 and is connected to the temperature acquisition device 84. The temperature acquisition device 84 is connected to the data display device 9. The thermocouple 82 measures the temperature of the melt at its measuring end and transmits the temperature data to the temperature acquisition instrument 84 via the second wire 83. The temperature acquisition instrument 84 then transmits the temperature data to the data display device 9.

[0060] In some embodiments, such as Figure 4 As shown, the second fixing groove 14 is located at the end of the melt flow channel. The moving mold 1 is provided with a second mounting cavity 141 at the second flow channel 30. The mounting block 81 is provided with a fourth groove 812. The first through hole 811 is located on the bottom wall of the fourth groove 812. The wall of the fourth groove 812 is flush with the wall of the second flow channel 30 on the moving mold 1.

[0061] like Figure 5As shown, the fourth groove 812 is a through groove extending in the melt flow direction, thus the melt flow channel is an open channel, and the melt flows out after passing through the fourth groove 812. Alternatively, the mounting block 81 has a third protrusion 813 at one end of the fourth groove 812 to close the end of the melt flow channel, thus the melt flow channel is a closed channel. By using different forms of the mounting block 81, open and closed melt flow channels can be formed, which facilitates the study of the influence of different cavity types on other process parameters in melt injection molding, such as melt flow filling speed and melt pressure, to meet different research needs.

[0062] In some embodiments, the temperature sensing end of thermocouple 82 is bent towards the direction of melt flow, such as... Figure 4 As shown, the measuring end of thermocouple 82 is bent towards the cavity insert 4. During the process of the melt filling the melt flow channel, the temperature of the melt front end drops after contacting the lower temperature cavity, thus forming a shell layer at the melt front end. The measuring end of thermocouple 82 is placed along the flow direction, which is conducive to piercing the melt shell layer and achieving full contact between the measuring end of thermocouple 82 and the interior of the melt, thereby achieving accurate temperature measurement.

[0063] In some embodiments, one end (front end) of the second connecting cavity 142 in the first direction is open and located on the camera end face of the moving mold 1, so that the other end of the second wire 83 is led out from the camera end face, avoiding interference between the second wire 83 and the injection molding machine, facilitating the installation of the second wire 83, and also facilitating the arrangement of the temperature acquisition instrument 84.

[0064] Specifically, the mounting block 81 is provided with a second through hole 814, which is connected to the first through hole 811. The second through hole 814 is a threaded hole, through which a screw passes to fix the thermocouple 82 in the first through hole 811.

[0065] The light-transmitting visualization injection molding method with both temperature and pressure measurement in this embodiment of the invention uses the light-transmitting visualization injection molding system 100 with both temperature and pressure measurement in this embodiment of the invention. Melt is injected into the melt flow channel, the light-emitting element 5 is turned on, the light-emitting element 5 emits light, and the light passes through the second glass 32, the cavity 10 and the first glass 31 to illuminate the camera 2. The camera 2 captures the image of the cavity 10, the pressure is measured by the pressure measuring device 7, and the temperature is measured by the temperature measuring device 8. The image captured by the camera, the pressure measured by the pressure measuring device and the temperature measured by the temperature measuring device are displayed by the data display device 9.

[0066] Injection molding experiments conducted using the light-transmitting visualization injection molding method with both temperature and pressure measurement capabilities, as described in this invention, allow for real-time observation of the melt flow state and simultaneous acquisition of pressure and temperature data. For example... Figures 7 to 9The figure shows the melt flow state diagram, temperature versus time curve, and pressure versus time curve recorded in a set of experiments.

[0067] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0068] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0069] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0070] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0071] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0072] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A light-penetration visualized injection molding system (100) with temperature and pressure measurement, characterized in that, The utility model relates to a kind of injection molding machine, including: Moving die (1), the moving die (1) has closing end face and camera end face, installation groove (12) is opened in the closing end face, observation window (11) is opened in the camera end face, the observation window (11) is communicated with the installation groove (12), first fixed groove (13) and second fixed groove (14) are also opened in the moving die (1); Camera (2), the camera (2) is installed on the moving die (1), and the camera (2) is towards the observation window (11); First glass (31), cavity insert (4), second glass (32) and light emitting piece (5), the first glass (31), the cavity insert (4), the second glass (32) and the light emitting piece (5) are sequentially arranged in the installation groove (12) along the first direction, the first glass (31) is adjacent with the observation window (11), the first glass (31), the cavity insert (4), the second glass (32) and the moving die (1) define cavity (10), the cavity (10), the observation window (11), the light emitting piece (5) and the camera (2) are opposite in the first direction, the cavity insert (4) and the moving die (1) define first runner (20); Fixed die (6), the fixed die (6) is attached or adjacent to the closing end face, the fixed die (6) and moving die (1) between define second runner (30), the second runner (30), the first runner (20) and the cavity are communicated with each other and form melt flow channel, the first fixed groove (13) and the second fixed groove (14) are communicated with the melt flow channel; Pressure measuring device (7), the pressure measuring device (7) is arranged in the first fixed groove (13); Temperature measuring device (8), the temperature measuring device (8) is arranged in the second fixed groove (14);And Data display device (9), the data display device (9) is connected with the camera (2), the pressure measuring device (7) and the temperature measuring device (8); The pressure measuring device and temperature measuring device are fixedly installed on the moving die, so that when melt is injected into the melt flow channel, the camera, the pressure measuring device and the temperature measuring device can synchronously collect data.

2. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 1, characterized in that The light emitting piece (5) and the second glass (32) are spaced apart in the first direction.

3. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 2, characterized in that The groove bottom of the installation groove (12) is sequentially provided with first recess, first boss (121), second recess, second boss (122) and third recess along the first direction, the first glass (31) is installed in the first recess, the cavity insert (4) is installed on the first boss (121), the second glass (32) is installed in the second recess, the light emitting piece (5) is installed in the third recess, the depth of the installation groove (12) at the second boss (122) is greater than or equal to the depth at the first boss (121).

4. The optical transparent visualized injection molding system (100) with temperature and pressure measurement of claim 1, wherein, the first fixed groove (13) extends along a second direction perpendicular to the first direction, and the first fixed groove (13) comprises a first mounting cavity (131) and a first communication cavity (132), the first mounting cavity (131) is in communication with the cavity, a wall surface of a side of the cavity in communication with the first mounting cavity (131) is a first wall surface, and the first communication cavity (132) is open; the pressure measuring device (7) comprises a pressure sensor (71), a pressure connector (72), a first wire (73), and a pressure collector (74), the pressure sensor (71) is connected with the pressure connector (72), the pressure sensor (71) and the pressure connector (72) are arranged in the first mounting cavity (131), a pressure measuring end of the pressure sensor (71) is flush with the first wall surface, the pressure connector (72) is adjacent to the first communication cavity (132), one end of the first wire (73) is connected with the pressure connector (72), the other end of the first wire (73) is connected with the pressure collector (74), and the pressure collector (74) is connected with the data display device (9).

5. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 4, characterized in that the pressure measuring device (7) further comprises a first pressing plate (75), the first pressing plate (75) is arranged in the first communication cavity (132), and the first pressing plate (75) abuts against the pressure connector (72), the other end of the first wire (73) passes through the first pressing plate (75) to be connected with the pressure collector (74).

6. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 5, characterized in that the movable mold (1) is provided with a first through groove (15), one end of the first through groove (15) is in communication with the first communication cavity (132), and the other end of the first through groove (15) is located on the camera end face, and the first wire (73) of the first pressing plate (75) extends out of the movable mold (1) through the first through groove (15).

7. The optical transparent visualized injection molding system (100) with temperature and pressure measurement of claim 1, wherein, the second fixed groove (14) comprises a second mounting cavity (141) and a second communication cavity (142), the second mounting cavity (141) is in communication with the melt flow channel, and one side of the second communication cavity (142) is in communication with the second mounting cavity (141), and the other side of the second communication cavity (142) is open; The temperature measuring device (8) comprises a mounting block (81), a thermocouple (82), a second wire (83) and a temperature acquisition instrument (84), the mounting block (81) is arranged in the second mounting cavity (141), the mounting block (81) is provided with a first through hole (811), the first through hole (811) is communicated with the melt flow channel, the thermocouple (82) is arranged in the first through hole (811), the temperature measuring end of the thermocouple (82) is located in the second flow channel (30), one end of the second wire (83) is connected with the thermocouple (82), the other end of the second wire (83) passes through the second communication cavity (142) and is connected with the temperature acquisition instrument (84), and the temperature acquisition instrument (84) is connected with the data display device (9).

8. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 7, characterized in that The second fixed groove (14) is located at the end of the melt flow channel, the movable mold (1) is provided with the second mounting cavity (141) at the second flow channel (30), the mounting block (81) is provided with a fourth groove (812), the first through hole (811) is located on the bottom wall surface of the fourth groove (812), the wall surface of the fourth groove (812) is flush with the wall surface of the second flow channel (30) on the movable mold (1), and the fourth groove (812) is a through groove extending in the melt flow direction, or the mounting block (81) is provided with a third boss (813) at one end of the fourth groove (812) to close the end of the melt flow channel.

9. The light-penetration visualized injection molding system (100) with temperature and pressure measurement according to claim 7, characterized in that The temperature measuring end of the thermocouple (82) is bent towards the melt flow direction; And / or, one end of the second communication cavity (142) is open in the first direction and located on the camera end face.

10. A light-penetration visualizing injection molding method with temperature and pressure measurement, characterized by, According to the light penetration type visual injection molding system (100) with temperature and pressure measurement of any one of claims 1-9, melt is injected into the melt flow channel, the light emitting part (5) is turned on, the camera is used to shoot the picture of the cavity, the pressure measuring device (7) is used to measure the pressure, the temperature measuring device (8) is used to measure the temperature, and the picture, the pressure and the temperature are displayed through the data display device (9).

Images