Light transmission type visual injection molding system and method with temperature and pressure measurement functions

Abstract

The invention relates to a light transmission type visual injection molding system and method with temperature and pressure measurement functions. The injection molding system comprises a movable mold, a camera, first glass, a cavity insert, second glass, a light-emitting part, a fixed mold, a pressure measuring device and a temperature measuring device. A mounting groove, an observation window, a first fixing groove and a second fixing groove are formed in the movable mold, 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 in the first direction, the fixed mold is attached to or adjacent to the movable mold, and 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 provided by the embodiment of the invention is simple in structure, compact in layout and low in manufacturing cost, does not need to customize a mold, does not need to modify an injection molding machine table, can observe the melt flow state in real time and synchronously collect pressure data and temperature data, and can also reduce the experiment cost, shorten the experiment time and meet different experiment research requirements.

Description

Technical Field

[0001] The present invention relates to the technical field of injection molding, and in particular to a light-penetrating visualized injection molding system and method capable of measuring both temperature and pressure. Background Art

[0002] Injection molding dynamic visualization is a technology that uses specially designed molds to achieve real-time observation of the injection molding process and reflect the real flow state of the melt. It is of great significance to study the injection molding process, discover certain unknown phenomena, explain the causes of molding defects, and find ways to avoid defects. In related technologies, the light-penetrating visualization mold has the problems of complex mold structure, separate customization of fixed molds and movable molds, and modification of injection molding machines. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the embodiment of the present invention proposes a light-penetrating visual injection molding system with both temperature and pressure measurement, which has a simple structure and a compact layout, does not require customized molds, and does not require the modification of injection molding machines. It can observe the melt flow state in real time, collect pressure data and temperature data simultaneously, and has a low manufacturing cost, which can also reduce experimental costs and experimental time to meet different experimental research needs.

[0004] The embodiment of the present invention provides a light-transmitting visualized injection molding method capable of measuring both temperature and pressure.

[0005] The light-penetrating visualization injection molding system with both temperature and pressure measurement according to an embodiment of the present invention comprises a movable mold, a camera, a first glass, a cavity plug-in, a second glass, a light-emitting component, a fixed mold, a pressure measuring device, a temperature measuring device and a data display device. The movable mold has a clamping end face and a camera end face, a mounting groove is provided on the clamping end face, an observation window is provided on the camera end face, the observation window is connected to the mounting groove, and a first fixed groove and a second fixed groove are also provided on the movable mold; the camera is installed on the movable mold, and the camera faces the observation window; the first glass, the cavity plug-in, the second glass and the light-emitting component 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 plug-in, the second glass and the movable mold define a cavity, and the cavity, the observation window The window, the light-emitting part and the camera are opposite to each other in the first direction, the cavity plug-in and the movable mold define a first flow channel; the fixed mold is in contact with or adjacent to the closing mold end face, and a second flow channel is defined between the fixed mold and the movable mold, the second flow channel, the first flow channel and the cavity are connected to each other and 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 arranged in the first fixed groove; the temperature measuring device is arranged 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-penetrating visual injection molding system with both temperature and pressure measurement in the embodiment of the present invention has a simple structure and a 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 data and temperature data. It has a low manufacturing cost and can also reduce experimental costs and time to meet different experimental research needs.

[0007] In some embodiments, the light emitting member 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 mounted in the first groove, the cavity plug-in is mounted on the first boss, the second glass is mounted in the second groove, the light-emitting part is mounted 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, the second direction is perpendicular to the first direction, the first fixing groove includes a first installation cavity and a first connecting cavity, the first installation cavity is connected to the mold cavity, the wall surface on the side where the mold cavity is connected to the first installation cavity is a first wall surface, and the first connecting cavity is open; the pressure measuring device includes a pressure sensor, a pressure joint, a first wire and a pressure collector, the pressure sensor is connected to the pressure joint, the pressure sensor and the pressure joint are arranged in the first installation cavity, the pressure measuring end of the pressure sensor is flush with the first wall surface, the pressure joint is adjacent to the first connecting cavity, one end of the first wire is connected to the pressure joint, the other end of the first wire is connected to the pressure collector, and the pressure collector is connected to the data display device.

[0010] In some embodiments, the pressure measuring device further includes a first pressure plate, which is disposed in the first connecting cavity, the first pressure plate abuts against the pressure connector, and the other end of the first wire passes through the first pressure plate to connect to the pressure collector.

[0011] In some embodiments, a first through slot is provided on the movable mold, one end of the first through slot is connected to the first connecting cavity, the other end of the first through slot is located on the camera end surface, and the first wire extending out of the first pressure plate extends out of the movable mold through the first through slot.

[0012] In some embodiments, the second fixing groove includes a second mounting cavity and a second connecting cavity, the second mounting cavity is connected to the melt flow channel, one side of the second connecting cavity is connected to the second mounting cavity, and the other side of the second connecting cavity is open; the temperature measuring device includes a mounting block, a thermocouple, a second wire and a temperature collector, the mounting block is arranged in the second mounting cavity, a first through hole is provided on the mounting block, the first through hole is connected to the melt flow channel, the thermocouple is arranged in the first through hole, 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, the other end of the second wire passes through the second connecting cavity and is connected to the temperature collector, and the temperature collector 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 movable 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 movable 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 measuring end of the thermocouple is bent toward the melt flow direction;

[0015] And / or, one end of the second communication cavity in the first direction is open and located on the camera end surface.

[0016] The light-penetrating visual injection molding method with both temperature and pressure measurement of the embodiment of the present invention is based on the light-penetrating visual injection molding system with both temperature and pressure measurement, injecting melt into the melt flow channel, turning on the light-emitting part, using the camera to shoot the image of the cavity, using the pressure measuring device to measure the pressure, using the temperature measuring device to measure the temperature, and displaying the image, pressure and temperature through the data display device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 1 is an overall schematic diagram of a light-penetrating visual injection molding system capable of measuring both temperature and pressure according to an embodiment of the present invention;

[0018] Figure 2 Schematic diagram of a movable mold according to an embodiment of the present invention;

[0019] Figure 3 yes Figure 2 Partial cross-sectional view along line AA;

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

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

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

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

[0024] Figure 8 It is a set of experimentally measured temperature versus time graphs;

[0025] Fig. 9 It is a set of experimentally measured pressure versus time graphs;

[0026] Reference numerals:

[0027] Injection molding system 100;

[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 communicating cavity 132, second fixing groove 14, second mounting cavity 141, second communicating 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] A pressure measuring device 7, a pressure sensor 71, a pressure connector 72, a first wire 73, a pressure collector 74, and a 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 collector 84;

[0032] Data display device 9, second pressing plate 101, supporting frame 102;

[0033] The mold cavity 10 , the first flow channel 20 , and the second flow channel 30 . DETAILED DESCRIPTION

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

[0035] Please refer to the attached Figures 1 to 9 , a light-penetrating visual injection molding system 100 and method for both temperature and pressure measurement according to an embodiment of the present invention are described in detail.

[0036] like Figures 1 to 6 As shown, an optically transparent visual injection molding system 100 with both temperature and pressure measurement according to an embodiment of the present invention includes a movable mold 1, a camera 2, a first glass 31, a cavity plug-in 4, a second glass 32, a light-emitting component 5, a fixed mold 6, a pressure measuring device 7, a temperature measuring device 8 and a data display device 9.

[0037] The movable mold 1 has a clamping end face and a camera end face. A mounting groove 12 is provided on the clamping end face. An observation window 11 is provided on the camera end face. The observation window 11 is connected to the mounting groove 12. The movable mold 1 is also provided with a first fixing groove 13 and a second fixing groove 14. The camera 2 is installed on the movable mold 1, and the camera 2 faces the observation window 11. The first glass 31, the cavity plug-in 4, the second glass 32 and the light-emitting member 5 are sequentially arranged 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 plug-in 4, the second glass 32 and the movable mold 1 define a cavity 10. The cavity 10, the observation window 11, the light-emitting member 5 and the camera 2 are arranged in the first direction (for example Figure 1 The mold insert 4 and the movable mold 1 define a first flow channel 20.

[0038] The fixed mold 6 is attached to or adjacent to the mold end face, and a second flow channel 30 is defined between the fixed mold 6 and the movable mold 1. The second flow channel 30, the first flow channel 20 and the cavity 10 are connected to each other to 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 arranged in the first fixed groove 13, the temperature measuring device 8 is arranged in the second fixed groove 14, and 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 optically transparent visual injection molding system 100 with both temperature and pressure measurement according to an embodiment of the present invention further includes an injection molding machine (not shown in the figure), on which a movable mold 1 and a fixed mold 6 are mounted, and which drives the movable mold 1 and the fixed mold 6 to close and open the mold.

[0040] like Figures 1 to 4 As shown, the first direction is the same as the front-to-back direction, then, the camera end face is the front end face of the movable mold, the mold closing end face is the left end face of the movable mold, the mold closing direction of the fixed mold and the movable mold is in the left-right direction, and in the mold closing state, the mold closing end face of the movable mold 1 is in contact with the fixed mold 6. When using the light-transmitting visual injection molding system 100 with both temperature and pressure measurement according to the embodiment of the present invention, the movable mold 1 is first assembled, and then the movable mold 1 and the fixed mold 6 are molded together. When assembling the movable mold, first install the pressure measuring device 7 into the first fixed groove 13, install the temperature measuring device 8 into the second fixed groove 14, connect the pressure measuring device 7 and the temperature measuring device 8 to the data display device 9, then select a specific cavity plug-in according to the research requirements, install the first glass 31, the cavity plug-in 4, the second glass 32 and the light-emitting member 5 into the installation groove 12, and then install the camera 2 on the movable mold 1, so that the camera head of the camera 2 faces the observation window 11, and connect the camera 2 to the data display device 9, so as to complete the assembly of the movable mold 1.

[0041] In the light-transmitting visual injection molding system 100 with both temperature and pressure measurement according to the embodiment of the present invention, the first glass 31 and the second glass 32 are respectively located on both sides of the cavity insert 4 in the first direction, so that the cavity 10 is in the first direction (also the width direction of the cavity 10, such as Figure 3 Both sides in the front-to-back direction (as shown in the figure) are light-permeable and easy to observe, and the cavity 10, the observation window 11, the light-emitting component 5 and the camera 2 are relative to each other in the first direction. On the one hand, the cavity 10, the light-emitting component 5 and the camera 2 are in the same straight line. On the other hand, the light-emitting component 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 component 5 can pass through the cavity 10 to the camera 2, so that the camera 2 can capture the image of the melt in the cavity 10, thereby realizing the dynamic visualization of the injection molding process of the injection molding system 100.

[0042] The light-penetrating visualization injection molding system 100 with both temperature and pressure measurement according to the embodiment of the present invention arranges the camera 2, the first glass 31, the cavity plug-in 4, the second glass 32 and the light-emitting member 5 along the first direction and installs them on the movable mold 1, which has the following beneficial effects: ①, the relative arrangement of the light-emitting member 5 and the camera 2 in the first direction conforms to the natural law that light propagates in a straight line, can reduce the loss of light refraction and reflection, avoids the problem of strong light at the edge of the cavity 10 and weak light in the middle, avoids affecting the observation effect of the melt in the cavity 10, ensures that the cavity 10 has a large amount of light transmission, ensures that the camera 2 has sufficient light input, and ensures the shooting effect of the camera 2; ②, the cavity 10 is arranged in its length direction (for example Figure 1 and Figure 4 ③, the camera 2, the first glass 31, the cavity plug-in 4, the second glass 32 and the light-emitting component 5 are arranged along the first direction and installed on the movable mold 1, and there is no need to modify the injection molding machine and the fixed mold 6, which simplifies the installation and disassembly process of the components on the injection molding machine. There is no need to customize the fixed mold, and a standard fixed mold can be used, which reduces the cost of the injection molding system 100 and has the advantage of a simple structure, which can achieve a compact layout of components and save space.

[0043] In addition, the first glass 31, the cavity plug-in 4, the second glass 32 and the movable mold 1 define the cavity 10. The thickness, shape and surface roughness of the cavity 10 can be changed by replacing different cavity plug-ins 4. It has the characteristics of flexible design and can meet different research needs.

[0044] The light-penetrating visualized injection molding system 100 with both temperature and pressure measurement in the embodiment of the present invention has a first fixed groove 13 and a second fixed groove 14 on the movable mold 1 to respectively install the pressure measuring device 7 and the temperature measuring device 8. The arrangement of the first fixed groove 13 and the second fixed groove 14 does not interfere with the arrangement of the camera 2. The video recording process of the camera 2 does not affect the measurement of the pressure measuring device 7 and the temperature measuring device 8. Video recording, pressure measurement and temperature measurement can be achieved simultaneously. Compared with the related art in which experimental detection of one or both of pressure, temperature and image is performed separately, the injection molding system 100 reduces the number of experiments, saves experimental materials and time, and enables the synchronous collection of pressure data and temperature data with video data, so as to achieve a one-to-one correspondence between pressure data and temperature data and video data, making the experimental data and results more reliable and convincing.

[0045] Therefore, the light-penetrating visual injection molding system 100 with both temperature and pressure measurement according to the embodiment of the present invention has a simple structure and a compact layout, does not require customized molds, and does not require modification of the injection molding machine. It can observe the melt flow state in real time and simultaneously collect pressure data and temperature data. It has a low manufacturing cost and can also reduce experimental costs and time to meet different experimental research needs.

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

[0047] In some embodiments, the bottom of the mounting groove 12 is provided with a first groove, a first boss 121, a second groove, a second boss 122, and a third groove in sequence along the first direction. The first glass 31 is installed in the first groove, the cavity plug 4 is installed on the first boss 121, the second glass 32 is installed in the second groove, and the light-emitting component 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 provision of the first groove, the second groove, and the third groove facilitates the positioning and installation of the first glass 31, the second glass 31, and the light-emitting component 5 in the mounting groove 12, respectively. The second boss 122 can separate the second glass 32 and the light-emitting component 5, thereby improving the convenience of installing the first glass 31, the cavity plug 4, the second glass 32, and the light-emitting component 5, thereby further improving the convenience of installing the injection molding system 100 of the embodiment of the present invention.

[0048] In some embodiments, Figure 3 As shown, the depth of the mounting groove 12 at the second boss 122 is greater than the depth at the first boss 121. Then, in the depth direction of the mounting groove 12 (i.e., the left-right direction), the second boss 122 is lower than the first boss 121, thereby increasing the illumination area of ​​the second glass 32 by the light-emitting component 5, and covering the partial area of ​​the second glass 32 below the cavity 10. Since light is refracted when passing through the second glass 32, the amount of light entering the cavity 10 through the second glass 32 is increased, which is beneficial to increase the amount of light entering the camera 2 and improve the image clarity of the camera 2.

[0049] The structure of the cavity insert 4 is as follows Figure 6 As shown, a fifth groove 41 is provided on one side of the cavity plug 4. The fifth groove 41 is a through groove that runs through the thickness direction of the cavity plug 4. The thickness of the cavity plug 4 is parallel to the first direction. The one side of the cavity plug 4 and the two sides adjacent to the one side are provided with a sixth groove 42. The sixth groove 42 is an arc groove, and the sixth groove 42 is connected to the fifth groove 41. When the cavity plug 4 is installed on the movable mold 1, the fifth groove 41 is installed toward the bottom of the installation groove 12. The first glass 31, the wall of the fifth groove 41, the second glass 32 and the first boss 122 define the cavity 10. The wall of the sixth groove 42 and the wall of the installation groove 12 define the first flow channel 20.

[0050] Specifically, the injection molding system 100 further includes a second pressing plate 101, which abuts against the first glass 31, the cavity insert 4, and the second glass 32, and is connected to the movable mold 1 by bolts to fix the first glass 31, the cavity insert 4, and the second glass 32 in the mounting groove 12 of the movable mold 1. The second pressing plate 101 is detachably connected to the movable mold 1 to facilitate the replacement of the cavity insert 4, which is beneficial to further improve the convenience of installation of the injection molding system 100 of the embodiment of the present invention, reduce the installation time of the injection molding system 100, and improve the efficiency of the injection molding experiment.

[0051] The light-emitting element 5 is fixed in the third groove by gluing or screwing. The light-emitting element 5 is a light strip or a light bead. The light-emitting element 5 is equipped with a storage battery, or the light-emitting element 5 is connected to an external power source. When the light-emitting element 5 needs an external power source, a groove or a through hole penetrating the movable mold 1 is opened on the third groove, and a connecting wire is inserted into 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 further includes a support frame 102, which is mounted on the camera end surface of the movable mold 1. Figure 1As shown, the support frame is located on the front end surface of the movable mold 1 , and a camera 2 is installed on the support frame 102 , and there is a distance between the camera 2 and the observation window 11 .

[0054] In some embodiments, the first fixing groove 13 is arranged along the second direction (eg Figure 3 The first fixing groove 13 includes a first installation cavity 131 and a first connecting cavity 132. The first installation cavity 131 is connected to the mold cavity 10, and the first installation cavity 131 is located at the first boss 121. The wall surface on the side where the mold cavity 10 is connected to the first installation cavity 131 is the first wall surface. Figure 3 and Figure 4 As shown, the first wall surface is the right wall surface of the mold 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 respectively located at the two opposite ends of the movable mold 2 in the second direction. Figure 3 As shown, the open side of the first connecting cavity 132 is located on the right end surface of the movable mold 1.

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

[0056] The pressure measuring device 7 includes a pressure sensor 71, a pressure connector 72, a first wire 73 and a pressure collector 74. The pressure sensor 71 is connected to the pressure connector 72. The pressure sensor 71 and the pressure connector 72 are arranged in the first installation 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 wire 73 is connected to the pressure connector 72, and the other end of the first wire 73 is connected to the pressure collector 74. The pressure collector 74 is connected to the data display device 9. The pressure sensor 71 measures the pressure of the melt in the cavity 10, and transmits the pressure data to the pressure collector 74 through the pressure connector 72. The pressure collector 74 transmits the pressure data to the data display device 9.

[0057] In some embodiments, the pressure measuring device 7 further includes a first pressing plate 75, which is disposed in the first connecting cavity 132, the first pressing plate 75 abuts against the pressure connector 72, and the other end of the first wire 73 passes through the first pressing plate 75 to connect to the pressure collector 74. The pressure sensor 71 and the pressure connector 72 are fixed by the first pressing plate 75, and the first pressing plate 75 is detachably connected to the movable mold 1 by bolts, so as to facilitate the installation, disassembly, maintenance and replacement of the pressure measuring device 7, thereby further improving the convenience of installation of the injection molding system 100 of the embodiment of the present invention, reducing the installation time of the injection molding system 100, and improving the efficiency of the injection molding experiment.

[0058] In some embodiments, a first through slot 15 is provided on the movable mold 1, one end of the first through slot 15 is connected to the first communicating cavity 132, and the other end of the first through slot 15 is located on the camera end face of the movable mold 1, and the first wire 73 extending out of the first pressing plate 75 extends out of the movable mold 1 through the first through slot 15. The first through slot 15 not only provides a storage space for the first wire 73 and protects the first wire 73, but also leads the first wire 73 out of the camera end face of the movable mold 1 to avoid interference between the first wire 73 and the injection molding machine, facilitates the installation of the first wire 73, and also facilitates the arrangement of the pressure collector 74.

[0059] In some embodiments, the second fixing groove 14 includes a second mounting cavity 141 and a second connecting cavity 142, the second mounting cavity 141 is connected to the melt flow channel, one side of the second connecting cavity 142 is connected to the second mounting cavity 141, and the other side of the second connecting cavity 142 is open. The temperature measuring device 8 includes a mounting block 81, a thermocouple 82, a second wire 83 and a temperature collector 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 connected to the second flow channel 30, the thermocouple 82 is arranged in the first through hole 811, the temperature measuring end of the thermocouple 82 is located in the melt flow channel, one end of the second wire 83 is connected to the thermocouple 82, the other end of the second wire 83 passes through the second connecting cavity 142 and is connected to the temperature collector 84, and the temperature collector 84 is connected to the data display device 9. The temperature measuring end of the thermocouple 82 measures the temperature of the melt and transmits the temperature data to the temperature collector 84 through the second wire 83 . The temperature collector 84 transmits the temperature data to the data display device 9 .

[0060] In some embodiments, Figure 4 As shown, the second fixed groove 14 is located at the end of the melt flow channel, the movable 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 surface of the fourth groove 812, and 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.

[0061] like Figure 5As shown, the fourth groove 812 is a through groove extending in the direction of melt flow, then the melt flow channel is an open flow channel, and the melt flows out after flowing through the fourth groove 812. 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, then the melt flow channel is a closed flow channel. Through different forms of the mounting block 81, an open melt flow channel and a closed melt flow channel are formed, so as to facilitate the study of the influence of different cavity types on other process parameters in melt injection molding, such as melt flow filling speed, melt pressure, etc., to meet different research needs.

[0062] In some embodiments, the temperature measuring end of the thermocouple 82 is bent toward the melt flow direction, such as Figure 4 As shown, the temperature measuring end of the thermocouple 82 is bent toward the direction of the cavity insert 4. When the melt is filling the melt flow channel, the temperature of the front end of the melt decreases after contacting the cavity with a lower temperature, thereby forming a shell layer at the front end of the melt. The temperature measuring end of the thermocouple 82 is placed along the upstream direction, which is conducive to piercing the melt shell layer, achieving full contact between the temperature measuring end of the thermocouple 82 and the inside 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 surface of the movable mold 1, so that the other end of the second wire 83 is led out from the camera end surface, 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 collector 84.

[0064] Specifically, the mounting block 81 is provided with a second through hole 814 , which is communicated with the first through hole 813 . The second through hole 814 is a threaded hole, through which a screw passes to fix the thermocouple 82 in the first through hole 813 .

[0065] The light-penetrating visualized injection molding method with both temperature and pressure measurement according to the embodiment of the present invention adopts the light-penetrating visualized injection molding system 100 with both temperature and pressure measurement according to the embodiment of the present invention, injects melt into the melt flow channel, turns on the light-emitting component 5, and the light-emitting component 5 emits light, and the light passes through the second glass 32, the cavity 10 and the first glass 31 to the camera 2, and the camera 2 takes a picture 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, and the picture taken by the camera, the pressure measured by the pressure measuring device, and the temperature measured by the temperature measuring device are displayed on the data display device 9.

[0066] By performing an injection molding experiment using the light-penetrating visual injection molding method with both temperature and pressure measurement according to the embodiment of the present invention, the melt flow state can be observed in real time, and pressure data and temperature data can be collected simultaneously. Figures 7 to 9As shown, a melt flow state diagram, a temperature-time curve and a pressure-time curve recorded in a set of experiments.

[0067] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0068] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0069] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0070] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0071] In the present invention, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0072] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A light-transmitting visual injection molding system (100) capable of measuring both temperature and pressure, characterized in that: include: A movable mold (1), the movable mold (1) having a mold clamping end surface and a camera end surface, the mold clamping end surface being provided with a mounting groove (12), the camera end surface being provided with an observation window (11), the observation window (11) being connected to the mounting groove (12), and the movable mold (1) being provided with a first fixing groove (13) and a second fixing groove (14); A camera (2), wherein the camera (2) is mounted on the movable mold (1), and the camera (2) faces the observation window (11); A first glass (31), a cavity plug-in (4), a second glass (32) and a light-emitting component (5), wherein the first glass (31), the cavity plug-in (4), the second glass (32) and the light-emitting component (5) are sequentially arranged 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 plug-in (4), the second glass (32) and the movable mold (1) define a cavity (10), the cavity (10), the observation window (11), the light-emitting component (5) and the camera (2) are opposite to each other in the first direction, and the cavity plug-in (4) and the movable mold (1) define a first flow channel (20); A fixed mold (6), the fixed mold (6) is in contact with or adjacent to the mold end surface, a second flow channel (30) is defined between the fixed mold (6) and the movable mold (1), the second flow channel (30), the first flow channel (20) and the mold cavity are connected to each other to form a melt flow channel, and the first fixed groove (13) and the second fixed groove (14) are connected to the melt flow channel; a pressure measuring device (7), wherein the pressure measuring device (7) is arranged in the first fixing groove (13); a temperature measuring device (8), the temperature measuring device (8) being arranged in the second fixing groove (14); and A data display device (9), wherein the data display device (9) is connected to the camera (2), the pressure measuring device (7) and the temperature measuring device (8).

2. The light-transmitting visual injection molding system (100) with both temperature and pressure measurement according to claim 1, characterized in that: The light emitting element (5) is spaced apart from the second glass (32) in the first direction.

3. The light-transmitting visual injection molding system (100) with both temperature and pressure measurement according to claim 2, characterized in that: The bottom of the mounting groove (12) is provided with a first groove, a first boss (121), a second groove, a second boss (122) and a third groove in sequence along the first direction; the first glass (31) is mounted in the first groove; the cavity plug-in (4) is mounted on the first boss (121); the second glass (32) is mounted in the second groove; the light-emitting element (5) is mounted in the third groove; and 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).

4. The light-transmitting visual injection molding system (100) with both temperature and pressure measurement according to claim 1, characterized in that: The first fixing groove (13) extends along a second direction, the second direction is perpendicular to the first direction, the first fixing groove (13) comprises a first installation cavity (131) and a first communication cavity (132), the first installation cavity (131) is communicated with the mold cavity, the wall surface of one side of the mold cavity communicating with the first installation 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 to the pressure connector (72); the pressure sensor (71) and the pressure connector (72) are arranged in the first installation 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 wire (73) is connected to the pressure connector (72); the other end of the first wire (73) is connected to the pressure collector (74); and the pressure collector (74) is connected to the data display device (9).

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

6. The light-transmitting visual injection molding system (100) capable of measuring both temperature and pressure according to claim 5, characterized in that: The movable mold (1) is provided with a first through slot (15), one end of the first through slot (15) is connected to the first connecting cavity (132), the other end of the first through slot (15) is located on the camera end surface, and the first wire (73) extending out of the first pressing plate (75) extends out of the movable mold (1) through the first through slot (15).

7. The light-transmitting visual injection molding system (100) with both temperature and pressure measurement according to claim 1, characterized in that: The second fixing groove (14) comprises a second installation cavity (141) and a second communication cavity (142), the second installation cavity (141) is communicated with the melt flow channel, one side of the second communication cavity (142) is communicated with the second installation 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 collector (84); the mounting block (81) is arranged in the second mounting cavity (141); a first through hole (811) is arranged on the mounting block (81); the first through hole (811) is communicated with the melt flow channel; the thermocouple (82) is arranged in the first through hole (811); a temperature measuring end of the thermocouple (82) is located in the second flow channel (30); one end of the second wire (83) is connected to the thermocouple (82); the other end of the second wire (83) passes through the second communicating cavity (142) and is connected to the temperature collector (84); the temperature collector (84) is connected to the data display device (9).

8. The light-transmitting visual injection molding system (100) capable of measuring both temperature and pressure according to claim 7, characterized in that: The second fixing 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), 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-transmitting visual injection molding system (100) capable of measuring both temperature and pressure according to claim 7, characterized in that: The temperature measuring end of the thermocouple (82) is bent toward the flow direction of the melt; And / or, one end of the second connecting cavity (142) in the first direction is open and is located on the camera end surface.

10. A light-penetrating visual injection molding method with both temperature and pressure measurement, characterized in that: According to the light-penetrating visual injection molding system (100) with both temperature and pressure measurement as described in any one of claims 1 to 9, melt is injected into the melt flow channel, the light-emitting component (5) is turned on, the camera is used to capture the image of the cavity, the pressure is measured using the pressure measuring device (7), the temperature is measured using the temperature measuring device (8), and the image, pressure and temperature are displayed by the data display device (9).

Images