Device for detecting flowability of phenolic moulding plastic

Abstract

The utility model discloses a phenolic moulding plastic fluidity detection device, which belongs to the technical field of high polymer material detection, and adopts the technical scheme that the phenolic moulding plastic fluidity detection device comprises a data acquisition unit, a detection frame is arranged on the left side of the data acquisition unit, an adjusting assembly is arranged in the detection frame, and a testing assembly is arranged at the bottom of the adjusting assembly; the adjusting assembly comprises a driving motor fixedly connected to the interior of the detection frame, the output end of the driving motor is fixedly connected with a double-shaft lead screw, and the problems that when an existing phenolic molding plastic fluidity detection device is used for detection, phenolic molding plastic with different fluidity cannot be conveniently controlled to enter the detection device, and the detection efficiency is high can be solved. The problems that materials of phenolic molding plastic with good fluidity can flow into the detection device too fast when being detected, the subsequent detection effect is influenced, a flowing path of the phenolic molding plastic in an actual mold is inconvenient to simulate, and the detection accuracy is influenced are solved.

Description

Technical Field

[0001] This utility model relates to the field of polymer material testing technology, and in particular to a device for testing the flowability of phenolic molding compounds. Background Technology

[0002] Phenolic molding compounds are widely used in many fields such as aerospace, naval vessels, and electronic and electrical components. Their flowability is an important performance indicator, which directly reflects the curing time and processing stability of phenolic molding compounds, and is related to the quality and performance of the products. Therefore, accurate flowability testing is required to ensure product quality and meet the needs of different application scenarios.

[0003] To achieve the above performance requirements, the common practice is to use an injection molding machine to determine the flowability of the molded parts. However, this determination is based on experience and historical data in a general way. In order to achieve the stability of material molding, the injection molding machine can only be used to observe the advance speed of the injection molding machine. The data reflected is extremely unstable. There will be differences between the data of the first mold and the last mold. Moreover, a lot of material is wasted during the injection molding process. Phenolic resin is a thermosetting plastic. Once it is molded, the material is solid waste. This leads to instability in the use of the product during the batch-to-batch transfer process, as well as a lot of material waste, which increases costs and causes great pollution to the environment.

[0004] The existing patent (publication number: CN210005389U) discloses a phenolic molding compound flowability testing device. It uses a pressure bar to maintain a certain pressure and temperature, injects the material into a spiral metal mold, and measures the flowability of the material based on the length of the spiral filled every 60 seconds as the material hardens. The spiral length is observed through marked points. The operation is simple and greatly reduces material loss.

[0005] To address the aforementioned issues, existing patents offer solutions. However, existing phenolic molding compound flowability testing devices are not convenient for controlling the entry of phenolic molding compounds with different flowability into the testing device during testing. This results in the material of phenolic molding compounds with good flowability flowing into the testing device too quickly, affecting subsequent testing results. Furthermore, it is not convenient to simulate the flow path of phenolic molding compounds in actual molds, affecting the accuracy of the testing.

[0006] To address this, a device for testing the flowability of phenolic molding compounds is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a phenolic molding compound flowability testing device, which can solve the problems of existing phenolic molding compound flowability testing devices, which are not convenient for controlling the entry of phenolic molding compounds with different flowability into the testing device during testing. This causes the material of phenolic molding compounds with good flowability to flow into the testing device too quickly, affecting the subsequent testing results. In addition, it is not convenient to simulate the flow path of phenolic molding compounds in actual molds, which affects the accuracy of the test.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a phenolic molding compound flowability testing device, comprising a data acquisition unit, a testing frame disposed on the left side of the data acquisition unit, an adjustment component disposed inside the testing frame, and a testing component disposed at the bottom of the adjustment component;

[0009] The adjustment assembly includes a drive motor fixedly connected inside the detection frame. A dual-axis lead screw is fixedly connected to the output end of the drive motor. A connecting plate is threaded to the outer side of the dual-axis lead screw. A guide plate is fixedly connected to the inner side of the connecting plate. A feeding frame is fixedly connected inside the detection frame. The feeding frame is slidably connected to the guide plate. A limit plate is slidably connected inside the feeding frame. A support rod is fixedly connected inside the detection frame. The support rod is slidably connected to the connecting plate.

[0010] Preferably, the test component includes a flow channel support frame fixedly connected inside the test frame, and a spiral flow channel is fixedly connected inside the flow channel support frame.

[0011] Preferably, the top of the spiral flow channel is connected to a flow channel inlet pipe, and a temperature sensor is provided on the left side of the spiral flow channel.

[0012] Preferably, a temperature controller is fixedly connected to the left side of the detection frame, and a heating wire is connected to the right side of the temperature controller. The heating wire is located outside the flow channel support frame, and heat insulation pads are adhered to both sides of the flow channel support frame.

[0013] Preferably, the feeding frame has grooves on both sides, a push spring is fixedly connected inside the groove, the push spring is fixedly connected to the limiting plate, and a limiting block is slidably connected inside the groove, the limiting block is fixedly connected to the limiting plate.

[0014] Preferably, the detection frame has a sliding connection of a limiting rod inside, a limiting spring is sleeved on the outside of the limiting rod, a buckle plate is fixedly connected to the bottom of the limiting rod, a buckle block is snapped into the bottom of the limiting rod, a collection box is fixedly connected to the front side of the buckle block, and a buffer pad is glued to the bottom of the collection box.

[0015] Preferably, a fixed base is fixedly connected to the top of the detection frame, a servo motor is fixedly connected to the top of the fixed base, an adjusting screw is fixedly connected to the output end of the servo motor, an adjusting block is threadedly connected to the outer side of the adjusting screw, a support rod is fixedly connected to the inside of the adjusting block, and the support rod is slidably connected to the fixed base.

[0016] Preferably, a pressure block is fixedly connected to the bottom of the support rod, and a feeding hopper is provided at the top of the detection frame, with the feeding hopper located at the bottom of the pressure block.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application precisely adjusts the size of the feeding port of the feeding frame by adjusting the component. For phenolic molding compounds with good flowability, the feeding port can be reduced to prevent the material from flowing out too quickly. For materials with poor flowability, the feeding port can be increased to ensure that the material enters the spiral flow channel smoothly. This makes it suitable for the detection of various phenolic molding compounds with different flowability, meets diverse detection needs, and broadens the application range of the device.

[0019] 2. This application uses a test component that can simulate the flow path of phenolic molding compound in an actual mold, and it will be subject to similar resistance and pressure changes as in an actual mold, so as to obtain more accurate flow data and provide a reliable basis for evaluating the processing performance of the material in actual production. Compared with a simple straight channel, it can more realistically reflect the flow of materials in complex mold cavities. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a phenolic molding compound flowability testing device according to the present invention;

[0021] Figure 2 This is a cross-sectional view of the detection frame of this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of the adjustment component of this utility model;

[0023] Figure 4 This is a cutout diagram of the test component of this utility model;

[0024] Figure 5 This is a cross-sectional view of the material feeding frame of this utility model;

[0025] Figure 6 This is a schematic diagram showing the disassembled collection box of this utility model.

[0026] In the diagram, 1. Data acquisition unit; 2. Detection frame; 3. Groove; 4. Adjustment component; 401. Drive motor; 402. Dual-axis lead screw; 403. Connecting plate; 404. Guide plate; 405. Feeding frame; 406. Limiting plate; 407. Support rod; 5. Test component; 501. Flow channel support frame; 502. Spiral flow channel; 503. Flow channel inlet pipe; 504. Temperature sensor; 505. Temperature controller; 506. Heating wire; 507. Heat insulation pad; 6. Push spring; 7. Limiting block; 8. Limiting rod; 9. Limiting spring; 10. Buckle plate; 11. Buckle block; 12. Collection box; 13. Buffer pad; 14. Fixing seat; 15. Servo motor; 16. Adjusting screw; 17. Adjusting block; 18. Support rod; 19. Pressure block; 20. Feed hopper. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-6 The present invention provides the following technical solution:

[0029] A phenolic molding compound flowability testing device includes a data acquisition unit 1, a testing frame 2 on the left side of the data acquisition unit 1, an adjustment component 4 inside the testing frame 2, and a testing component 5 at the bottom of the adjustment component 4.

[0030] The adjustment assembly 4 includes a drive motor 401 fixedly connected inside the detection frame 2. A dual-axis lead screw 402 is fixedly connected to the output end of the drive motor 401. A connecting plate 403 is threadedly connected to the outer side of the dual-axis lead screw 402. A guide plate 404 is fixedly connected to the inner side of the connecting plate 403. A feeding frame 405 is fixedly connected inside the detection frame 2. The feeding frame 405 is slidably connected to the guide plate 404. A limit plate 406 is slidably connected inside the feeding frame 405. A support rod 407 is fixedly connected inside the detection frame 2. The support rod 407 is slidably connected to the connecting plate 403.

[0031] In this embodiment: the material enters the feeding frame 405 through the feed hopper 20, and the drive motor 401 is started simultaneously. The output end of the drive motor 401 is fixedly connected to a dual-axis lead screw 402. When the drive motor 401 operates, the dual-axis lead screw 402 rotates accordingly. A connecting plate 403 is threadedly connected to the outer side of the dual-axis lead screw 402. Under the transmission action of the lead screw, the connecting plate 403 moves along the axial direction of the dual-axis lead screw 402. Then, a guide plate 404 fixedly connected to the inner side of the connecting plate 403 moves synchronously with the connecting plate 403. The guide plate 404 then moves inside the feeding frame 405, adjusting the size of the feeding opening of the feeding frame 405. Simultaneously, the push spring 6 inside the groove 3 of the guide plate 404 extends and retracts as the guide plate 404 moves inward. When the device moves, the push spring 6 inside the groove 3 extends, and then the push spring 6 pushes the limiting plate 406 downward to ensure that the limiting plate 406 is always in close contact with the guide plate 404. This prevents the phenolic molding compound fed through the feeding frame 405 from flowing out through the gap between the limiting plate 406 and the guide plate 404. When the guide plate 404 moves outward, the push spring 6 inside the groove 3 retracts, and then the push spring 6 pushes the limiting plate 406 upward to ensure that the limiting plate 406 is always in close contact with the guide plate 404. This allows the detection device to be applicable to the detection of phenolic molding compounds with different flow rates. For materials with good flow rates, the feeding opening can be appropriately reduced to prevent them from flowing out too quickly. For materials with poor flow rates, the feeding opening can be increased to ensure that the material can smoothly enter the spiral flow channel 502.

[0032] Specifically, such as Figure 4 As shown, the test component 5 includes a flow channel support frame 501 fixedly connected inside the test frame 2, and a spiral flow channel 502 is fixedly connected inside the flow channel support frame 501.

[0033] Specifically, such as Figure 4 As shown, the top of the spiral flow channel 502 is connected to the flow channel inlet pipe 503, and a temperature sensor 504 is provided on the left side of the spiral flow channel 502.

[0034] Specifically, such as Figure 4 As shown, a temperature controller 505 is fixedly connected to the left side of the detection frame 2, and a heating wire 506 is connected to the right side of the temperature controller 505. The heating wire 506 is located on the outside of the flow channel support frame 501, and heat insulation pads 507 are bonded to both sides of the flow channel support frame 501.

[0035] In this embodiment: during the process of phenolic molding compound entering the spiral flow channel 502 through the flow channel inlet pipe 503, the operator can measure the actual temperature inside the spiral flow channel 502 using the temperature sensor 504 and adjust the temperature sensor 504 in advance. Then, the heating wire 506 is activated by the temperature controller 505. The heating wire 506 generates heat to heat the spiral flow channel 502 inside the flow channel support frame 501. The heat insulation pads 507 bonded to both sides of the flow channel support frame 501 can effectively reduce heat loss to the surrounding environment, making the spiral flow channel 502 more stable. The spiral channel 502 quickly and stably reaches and maintains the set temperature. Then, the phenolic molding compound enters the spiral channel 502 and flows forward along the spiral channel. The design of the spiral channel 502 can simulate the flow path of the phenolic molding compound in the actual mold, so as to more realistically reflect the flow of the material in the complex mold cavity and help to obtain more accurate flow data. During the flow of the phenolic molding compound, the data acquisition device 1 works simultaneously to test the resistance of the material during the flow process, and then analyze the flow characteristics of the material.

[0036] Specifically, such as Figure 5 As shown, grooves 3 are provided on both sides of the feeding frame 405. A push spring 6 is fixedly connected inside the groove 3. The push spring 6 is fixedly connected to the limiting plate 406. A limiting block 7 is slidably connected inside the groove 3. The limiting block 7 is fixedly connected to the limiting plate 406.

[0037] Specifically, such as Figure 6 As shown, the detection frame 2 has a sliding connection of a limiting rod 8 inside, a limiting spring 9 is sleeved on the outside of the limiting rod 8, a buckle plate 10 is fixedly connected to the bottom of the limiting rod 8, a buckle block 11 is snapped into the bottom of the limiting rod 8, a collection box 12 is fixedly connected to the front side of the buckle block 11, and a buffer pad 13 is glued to the bottom of the collection box 12.

[0038] In this embodiment: by setting grooves 3, pushing springs 6, and limiting blocks 7, when the guide plates 404 in the grooves 3 on both sides of the feeding frame 405 move inward, the pushing springs 6 extend, pushing the limiting plates 406 downward. When the guide plates 404 move outward, the pushing springs 6 retract, pushing the limiting plates 406 upward. Throughout the process, the limiting blocks 7 slide within the grooves 3, moving synchronously with the limiting plates 406, effectively preventing material leakage and ensuring that the phenolic molding compound can only flow out normally from the feeding port of the feeding frame 405. This avoids material leakage affecting the accuracy of test results and the cleanliness of the experimental environment. Simultaneously, the size of the feeding port can be adjusted in conjunction with the guide plates 404, allowing for adjustments to the feeding speed and flow rate according to the different flowability of the phenolic molding compound. This enhances the adaptability of the device to different materials and improves the reliability and comprehensiveness of the test. The setting of limiting rods 8, limiting springs 9, snap plates 10, snap blocks 11, and collection boxes further enhances the device's adaptability to different materials. 12 and buffer pad 13: After the phenolic molding compound flows out from the spiral flow channel 502, it falls into the collection box 12. The buffer pad 13 is at the bottom of the collection box 12 to buffer the impact of the falling material. At the same time, by pulling the buckle plate 10 upward, the buckle drives the limit rod 8 to move upward and exerts pressure on the limit spring 9, causing the limit spring 9 to compress. Then, the bottom of the limit rod 8 moves away from the inside of the buckle block 11. When the limit rod 8 is completely disengaged from the inside of the buckle block 11, the collection box 12 is moved out to facilitate the transfer of the collected phenolic molding compound. When installing the collection box 12, by moving the buckle plate 10 upward, the collection box 12 and the buckle block 11 are placed at the bottom of the detection frame 2. Then, the compressed limit spring 9 exerts pressure on the bottom buckle plate 10, which drives the limit rod 8 to move. Then, the limit rod 8 and the buckle block 11 are re-engaged to fix the collection box 12.

[0039] Specifically, such as Figure 2 As shown, a fixed base 14 is fixedly connected to the top of the detection frame 2, a servo motor 15 is fixedly connected to the top of the fixed base 14, an adjusting screw 16 is fixedly connected to the output end of the servo motor 15, an adjusting block 17 is threadedly connected to the outer side of the adjusting screw 16, a support rod 18 is fixedly connected to the inside of the adjusting block 17, and the support rod 18 is slidably connected to the fixed base 14.

[0040] Specifically, such as Figure 2 As shown, a pressure block 19 is fixedly connected to the bottom of the support rod 18, and a feed hopper 20 is provided on the top of the detection frame 2. The feed hopper 20 is located at the bottom of the pressure block 19.

[0041] In this embodiment: by setting up a fixed base 14, a servo motor 15, an adjusting screw 16, an adjusting block 17, and a support rod 18, the servo motor 15 is started before detection. Then, its output end drives the adjusting screw 16 to rotate. Then, the adjusting block 17, which is threaded to the outside of the adjusting screw 16, moves downward along the adjusting screw 16 under the action of thread transmission. The support rod 18, which is fixedly connected inside the adjusting block 17, moves accordingly. Since the support rod 18 is slidably connected to the fixed base 14, the stability of the movement is ensured. Then, the support rod 18 drives the bottom pressure block. 19 moves downward to precisely adjust the position of the pressure block 19, ensuring that the pressure block 19 applies appropriate pressure to the phenolic molding compound in the feed hopper 20. By setting the pressure block 19 and the feed hopper 20, the adjusting block 17 drives the support rod 18 and the pressure block 19 to move downward. The pressure block 19 gradually approaches the phenolic molding compound in the feed hopper 20. After contact, it continues to press down to initially compact the material, thereby improving the stability of the test. Compacting the material makes the flow of the phenolic molding compound more stable in the subsequent test process, avoiding abnormal flow caused by loose material.

[0042] Working Principle: In the process of using the phenolic molding compound flowability testing device, phenolic molding compound is first added to the feed hopper 20. Then, the servo motor 15 is started, and its output drives the adjusting screw 16 to rotate. The adjusting screw 16 then moves the threaded adjusting block 17, which in turn moves the fixedly connected support rod 18. The support rod 18 then moves the pressure block 19, which moves downwards. As the pressure block 19 descends, it applies pressure to the phenolic molding compound in the feed hopper 20, initially compacting the material. This makes the flow of the material more stable during subsequent testing, preventing flow abnormalities caused by loose material. When the phenolic molding compound... Molding plastic enters the feeding frame 405 through the feed hopper 20. Simultaneously, the drive motor 401 is started. The output end of the drive motor 401 is fixedly connected to a dual-axis lead screw 402. When the drive motor 401 operates, the dual-axis lead screw 402 rotates accordingly. A connecting plate 403 is threadedly connected to the outer side of the dual-axis lead screw 402. Under the transmission action of the lead screw, the connecting plate 403 moves along the axial direction of the dual-axis lead screw 402. Then, a guide plate 404 fixedly connected to the inner side of the connecting plate 403 moves synchronously with the connecting plate 403. The guide plate 404 then moves inside the feeding frame 405, adjusting the size of the feeding opening of the feeding frame 405. Simultaneously, the groove 3 of the guide plate 404... The push spring 6 in the groove 3 extends and retracts. When the guide plate 404 moves inward, the push spring 6 inside the groove 3 extends, and then pushes the limiting plate 406 downward, so that the limiting plate 406 is always in close contact with the guide plate 404. This prevents the phenolic molding compound fed through the feeding frame 405 from flowing out through the gap between the limiting plate 406 and the guide plate 404. When the guide plate 404 moves outward, the push spring 6 inside the groove 3 retracts, and then pushes the limiting plate 406 upward, so that the limiting plate 406 is always in close contact with the guide plate 404. This allows the detection device to be applicable to the detection of phenolic molding compounds with different flow rates. For materials with better flow rates, the pressure can be appropriately reduced. The discharge port is designed to prevent excessively rapid outflow. For materials with poor flowability, the discharge port can be enlarged to ensure smooth entry of the material into the spiral flow channel 502. This meets diverse testing needs and enhances the practicality of the device. During the process of phenolic molding compound entering the spiral flow channel 502 through the flow channel inlet pipe 503, the operator can measure the actual temperature inside the spiral flow channel 502 using the temperature sensor 504 and adjust the temperature sensor 504 in advance. Then, the heating wire 506 is activated by the temperature controller 505. The heating wire 506 generates heat to heat the spiral flow channel 502 within the flow channel support frame 501. The heat insulation pads 507 bonded to both sides of the flow channel support frame 501 effectively reduce heat loss to the surrounding environment.The spiral flow channel 502 is rapidly and stably brought to and maintained at the set temperature. The phenolic molding compound then enters the spiral flow channel 502 and flows forward along the spiral shape. The design of the spiral flow channel 502 simulates the flow path of the phenolic molding compound in an actual mold, thus more realistically reflecting the material's flow within the complex mold cavity and helping to obtain more accurate flowability data. During the flow of the phenolic molding compound, the data acquisition device 1 operates simultaneously to test the resistance of the material during flow, thereby analyzing the material's flowability characteristics.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A phenolic molding compound flowability detection device comprising a data collector (1), characterized in that: A detection frame (2) is provided on the left side of the data acquisition device (1), an adjustment component (4) is provided inside the detection frame (2), and a test component (5) is provided at the bottom of the adjustment component (4). The adjustment component (4) includes a drive motor (401) fixedly connected inside the detection frame (2). A dual-axis lead screw (402) is fixedly connected to the output end of the drive motor (401). A connecting plate (403) is threadedly connected to the outer side of the dual-axis lead screw (402). A guide plate (404) is fixedly connected to the inner side of the connecting plate (403). A feeding frame (405) is fixedly connected inside the detection frame (2). The feeding frame (405) is slidably connected to the guide plate (404). A limit plate (406) is slidably connected inside the feeding frame (405). A support rod (407) is fixedly connected inside the detection frame (2). The support rod (407) is slidably connected to the connecting plate (403).

2. The phenolic molding compound flowability detection device according to claim 1, characterized by: The test component (5) includes a flow channel support frame (501) fixedly connected inside the test frame (2), and a spiral flow channel (502) is fixedly connected inside the flow channel support frame (501).

3. The phenolic molding compound flowability detection device according to claim 2, characterized by: The top of the spiral flow channel (502) is connected to the flow channel inlet pipe (503), and a temperature sensor (504) is provided on the left side of the spiral flow channel (502).

4. The phenolic molding compound flowability detection device according to claim 2, characterized by: A temperature controller (505) is fixedly connected to the left side of the detection frame (2), and a heating wire (506) is connected to the right side of the temperature controller (505). The heating wire (506) is located outside the flow channel support frame (501), and heat insulation pads (507) are bonded to both sides of the flow channel support frame (501).

5. The phenolic molding compound flowability detection device according to claim 1, characterized by: The feeding frame (405) has grooves (3) on both sides. A push spring (6) is fixedly connected inside the groove (3). The push spring (6) is fixedly connected to the limiting plate (406). A limiting block (7) is slidably connected inside the groove (3). The limiting block (7) is fixedly connected to the limiting plate (406).

6. The phenolic molding compound flowability detection device according to claim 1, characterized by: The detection frame (2) has a sliding connection of a limiting rod (8) inside. A limiting spring (9) is sleeved on the outside of the limiting rod (8). A buckle plate (10) is fixedly connected to the bottom of the limiting rod (8). A buckle block (11) is snapped into the bottom of the limiting rod (8). A collection box (12) is fixedly connected to the front side of the buckle block (11). A buffer pad (13) is glued to the bottom of the collection box (12).

7. The phenolic molding compound flowability detection device according to claim 1, characterized by: The top of the detection frame (2) is fixedly connected to a fixed base (14), the top of the fixed base (14) is fixedly connected to a servo motor (15), the output end of the servo motor (15) is fixedly connected to an adjusting screw (16), the outer side of the adjusting screw (16) is threadedly connected to an adjusting block (17), the inside of the adjusting block (17) is fixedly connected to a support rod (18), and the support rod (18) is slidably connected to the fixed base (14).

8. The phenolic molding compound flowability testing device according to claim 7, characterized in that: The bottom of the support rod (18) is fixedly connected to a pressure block (19), and the top of the detection frame (2) is provided with a feeding hopper (20), which is located at the bottom of the pressure block (19).

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