A PLA plastic particle toughness strength detection device

Abstract

The application relates to the field of PLA plastic particle detection equipment, in particular to a PLA plastic particle toughness strength detection device, which comprises a PLA particle detection machine, the PLA particle detection machine comprises a machine body, a top frame is arranged on the top rear side of the machine body, a toughness detection assembly is arranged on the front upper side of the top frame, and a detection preparation assembly is arranged on the top front side of the machine body; the toughness detection assembly is used for detecting the toughness strength of the PLA plastic particles; the detection preparation assembly is used for completing the preparation work before the toughness detection of the PLA plastic particles; the toughness detection assembly comprises a fixing seat, the fixing seat is arranged on the front upper side of the machine body, a hydraulic rod is arranged in the middle of the fixing seat, and a pressing plate is arranged at the bottom of the hydraulic rod; the complete automatic pretreatment process is constructed, the detection preparation time is shortened by more than 60%, and the overall detection efficiency is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of PLA plastic particle detection equipment, and in particular to a PLA plastic particle toughness strength detection device. BACKGROUND

[0002] In the quality detection field of PLA plastic particles, the toughness performance as a key indicator directly affects the product quality control and research and development process in terms of accuracy and efficiency of detection. At present, the traditional detection equipment has many technical bottlenecks in actual application. In the cleaning link, the plastic particles remaining at the bottom of the pressing plate usually depend on manual cleaning. This way is not only low in efficiency, but also is easy to cause impurity residues due to human negligence, thereby affecting the accuracy of subsequent detection results. In continuous batch detection, the residual particles in the previous detection are not removed in time, which may cause detection data deviation, and cannot meet the requirements of detection precision and efficiency of industrialized production. In terms of temperature detection, the existing equipment mostly only supports performance test under a single temperature condition, and it is difficult to simulate the real performance of the plastic particles in a complex environment. In addition, in the detection pretreatment stage, the flattening and temperature equalization process of the plastic particles lack effective automation means. Therefore, the application provides a PLA plastic particle toughness strength detection device to solve the above problems. SUMMARY

[0003] The application aims to solve the problems in the background art and provides a PLA plastic particle toughness strength detection device.

[0004] To achieve the above object, the application adopts the technical scheme of a PLA plastic particle toughness strength detection device, which comprises a PLA particle detection machine, wherein the PLA particle detection machine comprises a machine body, a top frame is installed at the top rear side of the machine body, a toughness detection assembly is installed at the front upper side of the top frame, and a detection preparation assembly is arranged at the top front side of the machine body.

[0005] The toughness detection assembly is used for detecting the toughness strength of the PLA plastic particles.

[0006] The detection preparation assembly is used for completing the preparation work before the toughness detection of the PLA plastic particles.

[0007] The toughness detection assembly comprises a fixing seat installed on the upper front side of the machine body, a hydraulic rod installed in the middle of the fixing seat, a pressing plate installed at the bottom of the hydraulic rod, limit columns fixedly connected to the top of both sides of the pressing plate, the limit columns installed at the middle of both sides of the fixing seat, a limit slot formed in the middle of the pressing plate, a sliding block slidably connected inside the limit slot, electric lead screws installed on both sides of the pressing plate, the threaded rods of the electric lead screws in threaded connection with the sliding block, connecting rods rotatably connected to the front and rear sides of the sliding block, gears fixedly connected to the outer periphery of the connecting rods, racks fixedly connected to the upper sides of the front and rear ends of both sides of the pressing plate, eccentric motors fixedly connected to the ends of the connecting rods away from the sliding block, rotating rods fixedly connected to the driving ends of the eccentric motors, and soft brushes fixedly connected to the outer periphery of the rotating rods.

[0008] Preferably, the detection preparation assembly comprises a workbench fixedly connected to the front side of the middle of the top end of the machine body, a limit frame arranged inside the workbench, and a detection table arranged inside the limit frame, the limit frame being slidably connected with the detection table and the workbench.

[0009] Preferably, the detection preparation assembly further comprises a servo motor, a rotating shaft fixedly connected to the driving end of the servo motor, a ring bin fixedly connected to the upper part of the outer periphery of the rotating shaft, uniformly distributed connecting pipes fixedly connected to the outer periphery of the ring bin, rotating blocks fixedly connected to the ends of the connecting pipes away from the ring bin, uniformly distributed through openings formed in the outer periphery of the rotating blocks, and the interiors of the rotating blocks, the connecting pipes, the ring bin and the rotating shaft being in communication.

[0010] Preferably, the detection preparation assembly further comprises a pump group arranged outside the servo motor, the pump group being installed at the middle of the bottom end of the detection table, a plurality of through pipes fixedly connected to the output end of the pump group, and connecting bins fixedly connected to the ends of the through pipes away from the pump group, the connecting bins being in communication with the interior of the rotating shaft.

[0011] Preferably, the detection preparation assembly further comprises a temperature adjusting cavity installed in the middle of the detection table, the temperature adjusting cavity being rotatably connected with the rotating shaft, a plurality of cavities separated by a heat insulation material arranged on the upper part of the temperature adjusting cavity, electric heaters and semiconductor refrigerators installed at the top of the cavities, temperature controllers electrically connected with the electric heaters and the semiconductor refrigerators, and uniformly distributed fine air holes formed in the top of the cavities.

[0012] Preferably, a plurality of partition limit strips are fixedly connected to the top of the detection table, the top of the detection table is divided into a plurality of temperature regions by the partition limit strips, and the temperature regions correspond to the cavities respectively.

[0013] Preferably, a limit block is rotatably connected to the top of the rotating shaft, uniformly distributed side plates are fixedly connected to the upper part of the outer periphery of the limit block, and the limit block and the side plates are fixedly connected to the top of the inner side of the detection table.

[0014] Preferably, a plurality of communication seats are installed between the cavities, and the communication seats are used to realize the communication and closure between the cavities.

[0015] Preferably, a telescopic end of a gas cylinder is installed at the bottom of the limiting frame, and the gas cylinder is installed inside the machine body.

[0016] Preferably, a controller is installed on one side of the front of the machine body, and the controller is linearly connected with the toughness detection assembly and the detection preparation assembly.

[0017] Compared with the prior art, the present application has the following beneficial effects:

[0018] 1、The present application breaks through the limitations of traditional manual cleaning of the pressing plate, and an automatic cleaning mechanism driven by a motor is constructed. After the electric lead screw is started, the threaded rod drives the sliding block to move linearly along the guide rail. Through the meshing transmission of the gear and the rack, the automatic switching of the connecting rod and the rotating rod from the horizontal storage to the vertical working state is realized. When the rotating rod is vertical, the eccentric motor drives the high-frequency polarization of the rotating rod, and the soft brush is used for deep cleaning of the bottom of the pressing plate. Residual plastic particles are effectively removed. This design avoids detection errors caused by residual impurities, and is especially suitable for continuous batch detection scenes. It avoids the situation that plastic particles adhere to the bottom of the pressing plate during previous detection, people do not discover in time, and affect the subsequent detection. The accuracy and reliability of the detection result are significantly improved.

[0019] 2、In the batch detection process, the present application innovatively synchronizes the cleaning of the pressing plate with the pretreatment of the detection table. While the soft brush is cleaning the pressing plate, the rotating rod drives the soft brush to contact the detection table downward, and automatically completes the flattening and impurity removal of the plastic particles. This function not only reduces the manual intervention steps, but also solves the problem of interference of particle accumulation on the detection result. The detection table surface always maintains a standard test state. After cleaning is completed, the rotating rod is automatically reset and stored, leaving sufficient space for subsequent toughness detection, effectively improving the continuity of the detection process, so that the rotating rod does not affect the subsequent toughness detection work, which is beneficial to actual use.

[0020] 3、The present application is different from the traditional single temperature detection mode. Through the cooperative work of the electric heater, the semiconductor refrigerator and the temperature controller, multiple independent temperature control areas are constructed on the surface of the detection table, so that the toughness performance of the plastic particles at different temperatures can be detected, the detection efficiency is greatly improved, more comprehensive data support is provided for material performance analysis, and each temperature area is separated by a partition limiting strip to avoid mutual influence. At the same time, it can avoid the situation that the plastic particles are brought to the remaining areas when the plastic particles are flattened.

[0021] 4、The application forms double protection of vibration flattening system and temperature control airflow conveying system driven by servo motor in the detection preparation stage, high frequency vibration is generated by the collision of the rotating block and the limiting block driven by the rotating shaft, combined with the mechanical flattening of the rotating rod soft brush, to ensure uniform distribution of plastic particles; at the same time, the temperature control airflow driven by the pump group is sprayed through the fine holes of the detection table, to quickly realize the temperature balance of the particles, cooperate with the lifting and closing function of the limiting frame controlled by the air cylinder and the pressing plate, to build a complete automatic pretreatment process, shorten the detection preparation time by more than 60%, and significantly improve the overall detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a front view stereoscopic structure schematic diagram of the PLA plastic particle toughness strength detection device of the application;

[0023] Figure 2 It is a local structure schematic diagram of the detection assembly of the PLA plastic particle toughness strength detection device of the application;

[0024] Figure 3 It is a local structure schematic diagram of the detection table of the PLA plastic particle toughness strength detection device of the application;

[0025] Figure 4 It is a local structure schematic diagram in the detection table of the PLA plastic particle toughness strength detection device of the application;

[0026] Figure 5 It is a local structure schematic diagram of the rotating shaft of the PLA plastic particle toughness strength detection device of the application;

[0027] Figure 6 It is Figure 2 the enlarged view of A in the middle.

[0028] 1, PLA particle detection machine; 101, machine body; 102, controller; 103, top frame; 104, fixed seat; 105, limiting column; 106, hydraulic rod; 107, pressing plate; 108, limiting frame; 109, workbench; 110, electric screw; 111, limiting groove; 112, soft brush; 113, detection table; 114, partition limiting strip; 115, cavity; 116, communication seat; 117, temperature adjusting cavity; 118, servo motor; 119, pump group; 120, rotating block; 121, through port; 122, rotating shaft; 123, limiting block; 124, side plate; 125, ring warehouse; 126, connecting pipe; 127, through pipe; 128, connecting warehouse; 129, rack; 130, gear; 131, sliding block; 132, connecting rod; 133, eccentric motor; 134, rotating rod. DETAILED DESCRIPTION

[0029] The following description is used to disclose the present application so that those skilled in the art can implement the present application. The preferred embodiments in the following description are only examples, and other obvious modifications can be made by those skilled in the art.

[0030] As Figures 1-6 The toughness strength detection device for PLA plastic particles shown in the figure, including PLA particle detection machine 1, PLA particle detection machine 1 including machine body 101, the top rear side of machine body 101 is installed with top frame 103, the front upper side of top frame 103 is installed with toughness detection assembly, the top front side of machine body 101 is provided with detection preparation assembly, one side of the front of machine body 101 is installed with controller 102, controller 102 is linearly connected with toughness detection assembly and detection preparation assembly;

[0031] In specific implementation, people can detect the toughness of PLA plastic particles through PLA particle detection machine 1, in detection, people can first place the PLA plastic particles to be monitored on detection table 113, then people can drive pressing plate 107 to descend through hydraulic rod 106, the pressure of PLA plastic particles can be applied through pressing plate 107, so that the toughness test of PLA plastic particles can be realized, under the pressure action of pressing plate 107, PLA plastic particles will be compressed and deformed, at this time, the toughness performance detection of the detected PLA plastic particles can be realized by detecting the compression amount of PLA plastic particles under different pressures, which is beneficial to actual use, when detecting PLA plastic particles, people can choose to detect single PLA plastic particles, and can also choose to detect batch of PLA plastic particles, so as to cope with sampling detection work in production

[0032] Toughness detection assembly is used for detecting the toughness strength of PLA plastic particles;

[0033] Detection preparation assembly is used for completing the preparation work before toughness detection of PLA plastic particles;

[0034] The toughness detection assembly comprises a fixing seat 104 mounted on the upper front side of the machine body 101, a hydraulic rod 106 mounted in the middle of the fixing seat 104, a pressing plate 107 mounted at the bottom of the hydraulic rod 106, limiting columns 105 fixedly connected to the top of both sides of the pressing plate 107, the limiting columns 105 being mounted at the upper sides of both sides of the middle of the fixing seat 104, a limiting groove 111 being formed in the middle of the pressing plate 107, a sliding block 131 being slidably connected inside the limiting groove 111, electric lead screws 110 being mounted on both sides of the pressing plate 107, the threaded rods of the electric lead screws 110 being threadedly connected with the sliding block 131, connecting rods 132 being rotatably connected to the front and rear sides of the sliding block 131, gears 130 being fixedly connected to the outer peripheries of the connecting rods 132, racks 129 being fixedly connected to the upper sides of the front and rear ends of both sides of the pressing plate 107, eccentric motors 133 being fixedly connected to the ends of the connecting rods 132 away from the sliding block 131, rotating rods 134 being fixedly connected to the driving ends of the eccentric motors 133, and soft brushes 112 being uniformly distributed and fixedly connected to the outer peripheries of the rotating rods 134;

[0035] Further, in specific implementation, people can first start the electric screw 110 and the eccentric motor 133. The electric screw 110 can drive the sliding block 131 to move through the threaded rod. The sliding block 131 can drive the connecting rod 132 and the rotating rod 134 to move. At the beginning of the movement, the gear 130 will continuously engage with the rack 129, so as to drive the gear 130 to deflect, thereby driving the connecting rod 132 and the rotating rod 134 to reverse, so that the connecting rod 132 and the rotating rod 134 can be driven to be vertical. At this time, the eccentric motor 133 will start to work, drive the rotating rod 134 to rotate and polarize, and the soft brush 112 on the rotating rod 134 can clean the bottom of the pressing plate 107, which is convenient for subsequent detection. At the same time, it can avoid the situation that the plastic particles are attached to the bottom of the pressing plate 107 during the previous detection, and people do not find the situation in time to affect the subsequent detection. When a large number of PLA plastic particles are batch detected, people can lower the pressing plate 107 synchronously during the cleaning process of the pressing plate 107, so that the lower side of the soft brush 112 can contact the PLA plastic particles to be detected on the upper part of the detection table 113. At this time, the rotating rod 134 and the soft brush 112 can clean the top of the detection table 113 synchronously during the cleaning process of the bottom of the pressing plate 107, and can also sweep the PLA plastic particles accumulated on the detection table 113, so as to avoid the PLA plastic particles from being stacked together to affect the detection of the PLA plastic particles, thereby greatly reducing the intervention of people, which is beneficial to actual use. After the cleaning and flattening work is completed, the gear 130 will contact the rack 129 when the sliding block 131 is driven to one side of the pressing plate 107 under the action of the electric screw 110, so as to drive the gear 130 and the connecting rod 132 to deflect, deflect the connecting rod 132 and the rotating rod 134 to one side of the pressing plate 107, so that the rotating rod 134 will not affect the subsequent toughness detection work, which is beneficial to actual use.

[0036] The detection preparation assembly comprises a workbench 109, the workbench 109 is fixedly connected to the top middle front side of the machine body 101, a limiting frame 108 is arranged on the inner side of the workbench 109, a detection table 113 is arranged on the inner side of the limiting frame 108, the limiting frame 108, the detection table 113 and the workbench 109 are all slidingly connected, a gas cylinder extending end is installed at the bottom of the limiting frame 108, and the gas cylinder is installed in the machine body 101;

[0037] Further, in specific implementation, people can start the electric heater inside the cavity 115, the semiconductor refrigerator, through the electric heater and the semiconductor refrigerator, each cavity 115 can be heated or refrigerated, through the matched temperature controller, the temperature control can be realized, so as to divide the top of the detection table 113 into multiple temperature areas, so as to realize the detection of the toughness performance of the plastic particles at different temperatures, each temperature area is separated by the partition limiting strip 114, to avoid mutual influence, and at the same time, it can avoid the situation that the plastic particles are brought to the remaining area when the plastic particles are laid flat, which is beneficial to actual use.

[0038] Wherein, the detection preparation assembly further comprises a servo motor 118, the driving end of the servo motor 118 is fixedly connected with a rotating shaft 122, the outer periphery of the upper part of the rotating shaft 122 is fixedly connected with a ring bin 125, the outer periphery of the ring bin 125 is fixedly connected with uniformly distributed connecting pipes 126, the ends of the connecting pipes 126 away from the ring bin 125 are all fixedly connected with rotating blocks 120, the outer periphery of the rotating blocks 120 is all provided with uniformly distributed through holes 121, the rotating blocks 120, the connecting pipes 126, the ring bin 125 and the rotating shaft 122 are all connected, the top of the rotating shaft 122 is rotatably connected with a limiting block 123, the outer periphery of the upper part of the limiting block 123 is fixedly connected with uniformly distributed side plates 124, the limiting block 123 and the side plates 124 are all fixedly connected to the inner top of the detection table 113;

[0039] Further, in specific implementation, before detection, the work of the servo motor 118 will drive the rotating shaft 122 to rotate, the rotating shaft 122 can drive the ring bin 125, the connecting pipe 126 and the rotating block 120 to rotate synchronously, when the rotating block 120 rotates, it will continuously collide with the side plates 124 on the outer periphery of the limiting block 123, so that the side plates 124 will vibrate continuously, the vibration will further spread to the whole top of the detection table 113, so as to cooperate with the rotating rod 134 and the soft brush 112 to lay the plastic particles flat, which is convenient for subsequent detection work, in the process of laying the plastic particles flat, people can drive the limiting frame 108 to rise through the cylinder, so as to avoid that the plastic particles in the edge area are driven to fall out of the detection table 113, which is beneficial to actual use.

[0040] The detection preparation assembly further comprises a pump set 119 arranged outside the servo motor 118, the pump set 119 is installed at the middle of the bottom end of the detection table 113, a plurality of through pipes 127 are fixedly connected to the output end of the pump set 119, one end of each of the through pipes 127 away from the pump set 119 is fixedly connected with a connecting bin 128, the connecting bin 128 is in communication with the inside of the rotating shaft 122, the detection preparation assembly further comprises a temperature adjusting cavity 117, the temperature adjusting cavity 117 is installed at the middle of the inside of the detection table 113, the temperature adjusting cavity 117 is in rotary connection with the rotating shaft 122, a plurality of cavities 115 are separated by heat insulation materials at the upper part of the temperature adjusting cavity 117, an electric heater and a semiconductor refrigerator are installed at the top of each of the cavities 115, the electric heater and the semiconductor refrigerator are electrically connected with a temperature controller, a plurality of fine air holes are arranged at the top of each of the cavities 115, a plurality of communication seats 116 are installed between the cavities 115, the communication seats 116 are used for realizing the communication and closure between the cavities 115, a plurality of partition limiting strips 114 are fixedly connected to the top of the detection table 113, the top of the detection table 113 is separated into a plurality of temperature areas by the partition limiting strips 114, and the temperature areas correspond to the cavities 115 respectively;

[0041] Further, in specific implementation, when the temperature of the plastic particles is adjusted, the pump set 119 can be further started, air can be extracted by the pump set 119 and input into the inside of the connecting bin 128 through the through pipe 127, the gas can further enter into the ring bin 125 through the rotating shaft 122, enter into the rotating block 120 through the connecting pipe 126, and be discharged through the through hole 121, the gas after temperature communication by the electric heater and the semiconductor refrigerator can be further sprayed out through the fine air holes arranged at the top of the detection table 113, so that the temperature assimilation work of the upper plastic particles can be effectively accelerated, the preparation time before detection can be effectively shortened, and further, the limiting frame 108 can be lifted and the pressing plate 107 can be lowered, so as to form a closed temperature adjusting space, further improve the efficiency, and be beneficial to actual use.

[0042] Working principle:

[0043] In actual use, people can detect the toughness of PLA plastic particles through the PLA particle detector 1. During detection, people can first place the PLA plastic particles to be monitored on the detection table 113, and then drive the pressure plate 107 down through the hydraulic rod 106. The pressure plate 107 can apply pressure to the PLA plastic particles, thereby testing the toughness of the PLA plastic particles. Under the pressure of the pressure plate 107, the PLA plastic particles will be compressed and deformed. At this time, the toughness of the detected PLA plastic particles can be detected by detecting the compression amount of the PLA plastic particles under different pressures, which is beneficial to actual use. When detecting the PLA plastic particles, people can choose to detect a single PLA plastic particle or batch detect multiple PLA plastic particles, thereby coping with sampling detection work in production. During actual detection, people can first start the electric screw 110 and the eccentric motor 133. The electric screw 110 can move the sliding block 131 by using the threaded rod. The sliding block 131 can drive the connecting rod 132 and the rotating rod 134 to move. At the beginning of movement, the gear 130 will continuously mesh with the rack 129, thereby driving the gear 130 to deflect, thereby driving the connecting rod 132 and the rotating rod 134 to flip, so that the connecting rod 132 and the rotating rod 134 can be brought to a vertical state. At this time, the eccentric motor 133 will start to work, driving the rotating rod 134 to rotate and polarize. The soft brush 112 on the rotating rod 134 can clean the bottom of the pressure plate 107, facilitating subsequent detection and avoiding the situation that people do not timely discover that plastic particles are attached to the bottom of the pressure plate 107 during continuous detection, affecting subsequent detection. When batch detecting a large number of PLA plastic particles, people can lower the pressure plate 107 synchronously during cleaning, so that the lower side of the soft brush 112 can contact the PLA plastic particles to be detected on the upper part of the detection table 113. At this time, the rotating rod 134 and the soft brush 112 can clean the top of the detection table 113 synchronously during cleaning of the bottom of the pressure plate 107, and can also sweep the PLA plastic particles accumulated on the detection table 113, thereby avoiding the accumulation of PLA plastic particles, affecting the detection of PLA plastic particles, and thereby greatly reducing the intervention of people, which is beneficial to actual use. After the cleaning and flattening work is completed, when the sliding block 131 is driven to one side of the pressure plate 107 by the electric screw 110, the gear 130 will contact the rack 129, thereby driving the gear 130 and the connecting rod 132 to deflect, deflecting the connecting rod 132 and the rotating rod 134 to one side of the pressure plate 107, so that the rotating rod 134 does not affect the subsequent toughness detection work, which is beneficial to actual use. During actual detection, people can start the electric heater and semiconductor cooler in the cavity 115,The electric heater and the semiconductor refrigerator can heat or refrigerate each cavity 115, and the temperature control device can control the temperature, so that the top of the detection table 113 can be divided into multiple temperature zones, so that the toughness performance of the plastic particles at different temperatures can be detected, and each temperature zone is separated by the partition limiting strip 114 to avoid mutual influence, and the plastic particles can be prevented from being brought to the remaining area when the plastic particles are flattened, which is convenient for actual use. At the same time, before detection, the work of the servo motor 118 drives the rotating shaft 122 to rotate, and the rotating shaft 122 drives the ring warehouse 125, the connecting pipe 126 and the rotating block 120 to rotate synchronously, and when the rotating block 120 rotates, it will continuously collide with the side plate 124 on the outer periphery of the limiting block 123, so that the side plate 124 will continuously vibrate, and the vibration will further spread to the top of the detection table 113, so as to cooperate with the rotating rod 134 and the soft brush 112 to flatten the plastic particles, which is convenient for subsequent detection work. In the process of flattening the plastic particles, the limiting frame 108 can be lifted by the air cylinder, so that the plastic particles in the edge area can be prevented from being brought out of the detection table 113, which is convenient for actual use. When the temperature of the plastic particles is regulated, the pump group 119 can be further started, air can be extracted by the pump group 119, and input into the connecting warehouse 128 inside through the pipe 127. The gas will further enter the ring warehouse 125 inside through the rotating shaft 122, and enter the rotating block 120 inside through the connecting pipe 126, and be scattered through the through hole 121. The gas after temperature communication by the electric heater and the semiconductor refrigerator can be sprayed out through the fine air holes arranged on the top of the detection table 113, so as to effectively accelerate the temperature assimilation of the upper plastic particles, thereby effectively shortening the preparation time before detection. Further, the limiting frame 108 can be lifted, and the pressing plate 107 can be lowered, so as to form a closed temperature regulating space, which further improves the efficiency and is convenient for actual use.

[0044] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A PLA plastic particle toughness and strength testing device, comprising a PLA particle testing machine (1), characterized in that: The PLA particle testing machine (1) includes a body (101), a top frame (103) is installed on the rear side of the top of the body (101), a toughness testing component is installed on the upper front side of the top frame (103), and a testing preparation component is provided on the front top of the body (101). The toughness testing component is used to test the toughness and strength of PLA plastic particles. The testing preparation component is used to complete the preparatory work before testing the toughness of PLA plastic particles. The toughness testing component includes a fixed base (104), which is installed on the upper front side of the body (101). A hydraulic rod (106) is installed in the middle of the fixed base (104), and a pressure plate (107) is installed at the bottom of the hydraulic rod (106). Limiting posts (105) are fixedly connected to both sides of the top of the pressure plate (107). The upper part of the limiting posts (105) is installed on both sides of the middle of the fixed base (104). A limiting groove (111) is opened in the middle of the pressure plate (107). A slider (131) is slidably connected inside the limiting groove (111). Electric screws (110) are installed on both sides of the pressure plate (107). The threaded rod of the electric screw (110) is threadedly connected to the slider (131). The slider (131) is rotatably connected to the front and rear sides by connecting rods (132), and gears (130) are fixedly connected to the outer periphery of the connecting rods (132). The upper parts of the front and rear ends of the pressure plate (107) are fixedly connected to racks (129). The end of the connecting rod (132) away from the slider (131) is fixedly connected to an eccentric motor (133). The drive end of the eccentric motor (133) is fixedly connected to a rotating rod (134). The outer periphery of the rotating rod (134) is fixedly connected to evenly distributed soft brushes (112). The detection preparation assembly includes a worktable (109). The worktable (109) is fixedly connected to the front side of the middle of the top of the machine body (101). A limit frame (100) is provided on the inner side of the worktable (109). 8) A detection platform (113) is provided inside the limiting frame (108). The limiting frame (108), the detection platform (113), and the worktable (109) are all slidably connected. The detection preparation assembly also includes a servo motor (118). A rotating shaft (122) is fixedly connected to the drive end of the servo motor (118). A ring chamber (125) is fixedly connected to the upper part of the outer periphery of the rotating shaft (122). A uniformly distributed connecting pipe (126) is fixedly connected to the outer periphery of the ring chamber (125). A rotating block (120) is fixedly connected to the end of the connecting pipe (126) away from the ring chamber (125). A uniformly distributed through-hole (121) is opened on the outer periphery of the rotating block (120). The rotating block (120) and the connecting pipe (126) are connected to each other. The internal components of the ring chamber (125) and the rotating shaft (122) are connected. The top of the rotating shaft (122) is rotatably connected to a limit block (123). The upper part of the outer periphery of the limit block (123) is fixedly connected to a uniformly distributed side plate (124). The limit block (123) and the side plate (124) are both fixedly connected to the top of the inner side of the detection table (113). The detection preparation assembly also includes a pump group (119). The pump group (119) is located outside the servo motor (118). The pump group (119) is installed in the middle of the bottom end of the detection table (113). The output end of the pump group (119) is fixedly connected to a plurality of through pipes (127). The end of the through pipe (127) away from the pump group (119) is fixedly connected to a connecting chamber (128).The connecting chamber (128) is internally connected to the rotating shaft (122). The detection preparation assembly also includes a temperature regulating chamber (117), which is installed in the middle of the detection stage (113). The temperature regulating chamber (117) is rotatably connected to the rotating shaft (122). The upper part of the temperature regulating chamber (117) is divided into multiple cavities (115) by heat insulation material. Each cavity (115) has an electric heater and a semiconductor cooler installed at the top. Both the electric heater and the semiconductor cooler are electrically connected to a temperature controller. Each cavity (115) has evenly distributed fine air holes at the top. Before testing, the servo motor (118) drives the rotating shaft (122) to rotate. The rotating shaft (122) drives the ring chamber (125), connecting pipe (126), and rotating block (120) to rotate synchronously. When the rotating block (120) rotates, it will continuously collide with the side plate (124) on the outer periphery of the limiting block (123), causing the side plate (124) to vibrate continuously. The vibration will further spread to the top of the testing table (113), thus cooperating with the rotating rod (134) and soft brush (112) to flatten the plastic particles, facilitating subsequent testing.

2. The PLA plastic granule toughness and strength testing device according to claim 1, characterized in that: The top of the testing platform (113) is fixedly connected with evenly distributed partition limit strips (114). The top of the testing platform (113) is divided into multiple temperature zones by the partition limit strips (114), and the temperature zones correspond to the cavity (115) respectively.

3. The PLA plastic granule toughness and strength testing device according to claim 2, characterized in that: Multiple connecting seats (116) are installed between the cavities (115), and the connecting seats (116) are used to realize the connection and closure between the cavities (115).

4. The PLA plastic granule toughness and strength testing device according to claim 3, characterized in that: The bottom of the limiting frame (108) is equipped with a cylinder telescopic end, and the cylinder is installed inside the machine body (101).

5. The PLA plastic granule toughness and strength testing device according to claim 4, characterized in that: A controller (102) is installed on one side of the front of the body (101), and the controller (102) is linearly connected to the toughness testing component and the testing preparation component.

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