A plastic aging performance evaluation instrument

Abstract

The present invention relates to the technical field of plastic aging evaluation, and specifically to a plastic aging performance evaluation instrument, comprising a chassis; a take-in and put-out port, which is opened on the side of the chassis; a cover plate, which is arranged on the inner side of the take-in and put-out port; a plurality of solar light panels, which are distributed in a linear array and fixedly installed on the inner top surface of the chassis; and a driving structure, which is arranged on the chassis and is used to drive the plastic parts to rotate. Compared with the prior art, the present application drives the rotating frame by a driving motor to realize the rotation of the rotating frame, thereby driving the clamping frame to revolve. At the same time, due to the meshing of the transmission gear and the fixed gear ring, the clamping frame can also realize self-rotation during the revolution. This combination of revolution and self-rotation ensures that the clamped plastic parts can be turned over in all directions and without dead angles, so that their outer walls can be fully irradiated. This rotation design not only improves the irradiation efficiency, but also ensures the uniformity of irradiation.

Description

Technical Field

[0001] The invention relates to the technical field of plastic aging assessment, and in particular to a plastic aging performance assessment instrument. Background Art

[0002] The plastic aging performance evaluator is a device used to evaluate the durability and stability of plastic materials under different environmental conditions. By simulating or accelerating the aging process of plastics in the use environment, its aging performance can be comprehensively evaluated. It can simulate the real environment and predict the aging rate and service life of materials in actual applications. It provides data support for material improvement and production processes, and helps companies improve product quality.

[0003] However, when using the plastic aging performance evaluation instrument in the prior art, the plastic parts are usually directly mounted on the bracket, and then the real environmental conditions such as sunlight intensity, temperature changes and humidity fluctuations are simulated by irradiation with solar light panels and precise control of humidity, so as to evaluate the aging performance of the plastic parts under these conditions. However, a significant defect of this installation method is that the bracket can only revolve, resulting in the inability of the plastic parts themselves to flip. This means that during the test, the plastic parts can only be irradiated from one side, which not only limits the comprehensiveness of the test, but also leads to low test efficiency.

[0004] Therefore, the present application provides a plastic aging performance assessor. Summary of the invention

[0005] In view of this, the purpose of the present invention is to provide a plastic aging performance evaluation instrument to solve the problem that the plastic parts cannot be turned over and the comprehensiveness of the test is limited.

[0006] Based on the above purpose, the present invention provides a plastic aging performance evaluation instrument, comprising:

[0007] Chassis;

[0008] A take-and-place opening is provided on the side of the chassis;

[0009] A cover plate, arranged on the inner side of the access opening;

[0010] A plurality of solar light panels are distributed in a linear array and fixedly installed on the inner top surface of the chassis;

[0011] A driving structure, disposed on the chassis, for driving the plastic part to rotate;

[0012] Four groups of clamping structures are arranged on the driving structure and are used to clamp and fix the plastic parts;

[0013] Two guide rods are symmetrically fixedly mounted on the inner wall of the chassis;

[0014] Two groups of humidification structures are respectively arranged on the two guide rods to increase the humidity in the chassis in all directions.

[0015] Preferably, the driving structure comprises:

[0016] A rotating frame, rotatably mounted on the inner wall of the chassis;

[0017] A driving motor is fixedly mounted on the side of the chassis, and an output end of the driving motor is fixedly connected to the rotating frame;

[0018] Four clamping frames are distributed in a circular array and rotatably mounted on the side of the rotating frame;

[0019] Four transmission gears are respectively fixedly mounted on one end of the four clamping frames away from the rotating frame;

[0020] A fixed gear ring is fixedly mounted on the inner wall of the chassis, and the fixed gear ring is meshed with the four transmission gears.

[0021] Preferably, the rotating frame is arranged in a cross shape.

[0022] Preferably, the clamping structure comprises:

[0023] A fixing frame, fixedly mounted on one end of the inner wall of the clamping frame;

[0024] A plurality of push rods are distributed in a linear array and are arranged through one end of the clamping frame away from the fixing frame, and the push rods are slidably connected to the through-holes;

[0025] A plurality of pressing plates are respectively fixedly mounted on one end of a plurality of the push rods located on the inner side of the clamping frame;

[0026] A plurality of springs are respectively mounted on the plurality of push rods, and the two ends of the springs are respectively fixedly connected to the push rods and the clamping frame;

[0027] A plurality of collars, respectively sleeved on the outer walls of one end of a plurality of the push rods located outside the clamping frame;

[0028] A plurality of connecting rods are respectively fixedly mounted on the outer walls of the plurality of collars;

[0029] A pull plate, fixedly mounted on the top ends of the plurality of connecting rods;

[0030] A plurality of groups of limit blocks are respectively arranged at one end of a plurality of the push rods located outside the clamping frame, and the number of the limit blocks in each group is two.

[0031] Preferably, the two limit blocks are symmetrically arranged at the ends of the push rod, and the inner wall of the collar fits with the outer wall of the push rod.

[0032] Preferably, a plurality of rubber strips distributed in a linear array are fixedly mounted on the side of the clamping frame located inside the fixing frame.

[0033] Preferably, the humidification structure comprises:

[0034] A driving rod is rotatably mounted on the inner wall of the chassis, and the driving rod is located directly above the guide rod;

[0035] Four guide plates are distributed in a linear array and sleeved on the driving rod;

[0036] Four groups of reciprocating threads are distributed in a linear array and are arranged on the outer wall of the driving rod, and the four guide plates are respectively screwed to the four groups of reciprocating threads;

[0037] Four support rings are fixedly mounted on the bottom ends of the four guide plates respectively;

[0038] Four rotating rings are rotatably mounted on the sides of the four support rings respectively, and the support rings and the rotating rings are both located on the outer wall of the guide rod;

[0039] Four wet air nozzles are respectively fixedly mounted on the outer walls of the four rotating rings;

[0040] Four groups of guide mechanisms are distributed in a linear array and arranged between the guide rod and the four rotating rings.

[0041] Preferably, the guiding mechanism comprises:

[0042] A guide groove, provided on the outer wall of the guide rod;

[0043] The guide block is fixedly mounted on the inner wall of the rotating ring, and the guide block is slidably connected to the inner wall of the guide groove.

[0044] Preferably, the guide groove is configured to be corrugated.

[0045] Preferably, driven wheels are fixedly mounted on the ends of the two driving rods, and the two driven wheels are connected to the output end of the driving motor via a synchronous belt transmission.

[0046] Beneficial effects of the present invention:

[0047] 1. This plastic aging performance evaluation instrument, by setting up a chassis and a driving structure, drives the rotating frame through a driving motor, realizes the rotation of the rotating frame, and then drives the clamping frame to revolve. At the same time, due to the engagement of the transmission gear and the fixed gear ring, the clamping frame can also rotate during the revolution. The combination of revolution and rotation ensures that the clamped plastic parts can be turned over in all directions and without dead angles, so that their outer walls can be fully irradiated. This rotation design not only improves the irradiation efficiency, but also ensures the uniformity of irradiation.

[0048] 2. This plastic aging performance evaluator is designed with a clamping structure that adopts an adjustable pressure plate. Pulling the pull plate can drive the connecting rod and the ring to slide, and then after loosening, the pressure plate can squeeze and fix the plastic part through the action of the spring. This clamping method is not only easy to operate, but also can adapt to plastic parts of different shapes and sizes, especially for plastic parts with side bends. In addition, the stability and reliability of the clamping structure are also guaranteed to ensure that the plastic parts will not fall off or be damaged during the flipping process.

[0049] 3. This plastic aging performance evaluator is provided with a guide rod and a humidifying structure. The humidifying structure humidifies the inside of the chassis through a moisture nozzle, and at the same time uses the output end of the driving motor to drive the driving rod to rotate through a synchronous belt. Since the guide plate is screwed to the reciprocating thread on the driving rod, the rotation of the driving rod can drive the guide plate and the support ring to slide back and forth along the guide rod. During the sliding process, the rotating ring realizes reciprocating rotation through the sliding connection between the guide block and the guide groove, thereby driving the swing humidification of the moisture nozzle. This humidification method not only improves the humidification efficiency, but also ensures the uniform distribution of moisture inside the chassis, providing a more realistic environment for simulating real usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0051] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0052] Figure 2 It is a schematic diagram of a partial cutaway structure of a chassis of the present invention;

[0053] Figure 3 This is a schematic diagram of the structure of the rotating frame of the present invention;

[0054] Figure 4 It is a schematic diagram of the clamping frame structure of the present invention;

[0055] Figure 5 for Figure 4 The enlarged structural diagram at A in the middle;

[0056] Figure 6 It is a schematic diagram of the structure of the driving rod and the guide rod of the present invention;

[0057] Figure 7 for Figure 6 Enlarged structural diagram at B in the middle.

[0058] The markings in the figure are:

[0059] 1. Chassis; 2. Access port; 3. Cover plate; 4. Solar lamp panel; 51. Rotating frame; 52. Driving motor; 53. Clamping frame; 54. Transmission gear; 55. Fixed gear ring; 61. Fixed frame; 62. Push rod; 63. Pressure plate; 64. Spring; 65. Ring; 66. Connecting rod; 67. Pull plate; 68. Limit block; 7. Rubber strip; 8. Guide rod; 91. Driving rod; 92. Guide plate; 93. Reciprocating thread; 94. Support ring; 95. Rotating ring; 96. Moisture nozzle; 97. Guide groove; 98. Guide block; 10. Driven wheel. DETAILED DESCRIPTION

[0060] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0061] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0062] like Figures 1 to 7As shown, a plastic aging performance evaluation instrument comprises a chassis 1; a take-in and put-out port 2, which is opened on the side of the chassis 1; a cover plate 3, which is arranged on the inner side of the take-in and put-out port 2; a plurality of solar light panels 4, which are arranged in a linear array and fixedly installed on the inner top surface of the chassis 1; a driving structure, which is arranged on the chassis 1 and is used to drive the plastic part to rotate; four groups of clamping structures, which are arranged on the driving structure and are used to clamp and fix the plastic part; two guide rods 8, which are symmetrically fixedly installed on the inner wall of the chassis 1; two groups of humidification structures, which are respectively arranged on the two guide rods 8, and are used to increase the humidity in the chassis 1 in all directions;

[0063] When in use, the plastic parts can be placed into the chassis 1 through the access port 2, and the plastic parts can be installed on the driving structure through the clamping structure. Then the cover plate 3 is installed and the driving structure is started. The outer wall of the plastic parts can be irradiated by the solar light panel 4, and the plastic parts can be flipped 360 degrees in the chassis 1 to ensure that the outer wall of the plastic parts can be fully irradiated. At the same time, the humidity inside the chassis 1 can be controlled by the humidification structure to simulate the real usage scenario.

[0064] like Figure 2 , Figure 3 As shown, the driving structure includes: a rotating frame 51, which is rotatably mounted on the inner wall of the chassis 1, and the rotating frame 51 is set in a cross shape; a driving motor 52, which is fixedly mounted on the side of the chassis 1, and the output end of the driving motor 52 is fixedly connected to the rotating frame 51; four clamping frames 53, which are distributed in a ring array and rotatably mounted on the side of the rotating frame 51; four transmission gears 54, which are respectively fixedly mounted on one end of the four clamping frames 53 away from the rotating frame 51; a fixed gear ring 55, which is fixedly mounted on the inner wall of the chassis 1, and the fixed gear ring 55 is meshed with the four transmission gears 54;

[0065] When the driving motor 52 is turned on, it can drive the rotating frame 51, so that the rotating frame 51 rotates, and drives the clamping frame 53 to revolve. When the clamping frame 53 revolves through the rotating frame 51, the transmission gear 54 is engaged with the fixed gear ring 55, which can drive the clamping frame 53 to rotate on its own, so that the plastic parts in the clamping frame 53 can rotate and flip while revolving, ensuring that the outer wall of the plastic parts can be fully exposed.

[0066] like Figure 4 , Figure 5As shown, the clamping structure includes: a fixed frame 61, fixedly mounted on one end of the inner wall of the clamping frame 53, and a plurality of rubber strips 7 distributed in a linear array are fixedly mounted on the side of the clamping frame 53 located inside the fixed frame 61; a plurality of push rods 62, distributed in a linear array and penetrating the end of the clamping frame 53 away from the fixed frame 61, and the push rods 62 are slidably connected to the penetration; a plurality of pressing plates 63, respectively fixedly mounted on one end of the plurality of push rods 62 located on the inner side of the clamping frame 53; a plurality of springs 64, respectively sleeved on the plurality of push rods 62, and the two ends of the springs 64 are respectively The plurality of collars 65 are respectively mounted on the outer wall of one end of the plurality of top rods 62 located outside the clamping frame 53, and the inner wall of the collar 65 fits the outer wall of the top rod 62; the plurality of connecting rods 66 are respectively fixedly mounted on the outer wall of the plurality of collars 65; the pull plate 67 is fixedly mounted on the top of the plurality of connecting rods 66; the plurality of groups of limit blocks 68 are respectively arranged at one end of the plurality of top rods 62 located outside the clamping frame 53, and the number of each group of limit blocks 68 is two, and the two limit blocks 68 are symmetrically arranged at the end of the top rod 62;

[0067] When the plastic part is fixedly installed in the clamping frame 53, the pull plate 67 can be pulled first to drive the ring 65 to slide along the push rod 62 through the connecting rod 66. During the sliding process of the ring 65, it can contact the limit block 68 and pull the push rod 62 through the limit block 68 to make the push rod 62 slide, and the pressure plate 63 can be close to the inner wall of the clamping frame 53. Then the plastic part is tilted and one end of it is inserted into the fixed frame 61. Then the plastic part is placed horizontally and the pull plate 67 is released. Under the action of the spring 64, the push rod 62 and the pressure plate 63 can slide, so that the pressure plate 63 squeezes the side wall of the plastic part, ensuring that the plastic part can be fixed between the fixed frame 61 and the pressure plate 63. And because there are a lot of push rods 62, plastic parts with bent sides can also be fixed, which is more convenient to use.

[0068] like Figure 6 , Figure 7As shown, the humidification structure includes: a driving rod 91, which is rotatably mounted on the inner wall of the chassis 1, and the driving rod 91 is located just above the guide rod 8, and the ends of the two driving rods 91 are fixedly mounted with driven wheels 10, and the two driven wheels 10 are connected to the output end of the driving motor 52 through a synchronous belt transmission; four guide plates 92, which are arranged in a linear array and sleeved on the driving rod 91; four groups of reciprocating threads 93, which are arranged in a linear array and opened on the outer wall of the driving rod 91, and the four guide plates 92 are respectively screwed with the four groups of reciprocating threads 93; four support rings 94, which are respectively fixedly mounted on the bottom ends of the four guide plates 92; four rotating rings 95, which are respectively rotatably mounted on the sides of the four support rings 94, and the support rings 94 and the rotating rings 95 are both located on the outer wall of the guide rod 8; four moisture nozzles 96, which are respectively fixedly mounted on the outer walls of the four rotating rings 95; four groups of guide mechanisms, which are arranged in a linear array between the guide rod 8 and the four rotating rings 95;

[0069] like Figure 7 As shown, the guide mechanism includes: a guide groove 97, which is provided on the outer wall of the guide rod 8, and the guide groove 97 is configured to be corrugated; a guide block 98, which is fixedly mounted on the inner wall of the rotating ring 95, and the guide block 98 is slidably connected to the inner wall of the guide groove 97;

[0070] When the interior of the chassis 1 is irradiated by the solar lamp panel 4, the moisture nozzle 96 can be turned on synchronously to increase the humidity inside the chassis 1. When the moisture nozzle 96 is humidifying, the output end of the drive motor 52 can drive the two drive rods 91 to rotate through the driven wheel 10 and the synchronous belt. Since the guide plate 92 is screwed to the reciprocating thread 93 on the drive rod 91, and the bottom end is slidably mounted on the guide rod 8 through the support ring 94, when the drive rod 91 rotates, it can drive the guide plate 92 and the support ring 94 to slide back and forth along the guide rod 8. In the process of sliding, since the rotating ring 95 is rotationally connected to the support ring 94, and the guide block 98 on the inner wall of the rotating ring 95 is slidably connected to the guide groove 97, and the guide groove 97 is set to be corrugated, when the guide block 98 slides along the guide groove 97, it can drive the rotating ring 95 to rotate back and forth, so that the moisture nozzle 96 on the rotating ring 95 can achieve swing humidification, ensuring that the moisture distribution inside the chassis 1 is more uniform and the simulation is more realistic.

[0071] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.

[0072] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A plastic aging performance evaluation instrument, characterized in that: include: Chassis (1); A take-in and put-out opening (2) is provided on a side surface of the chassis (1); A cover plate (3) is arranged on the inner side of the access opening (2); A plurality of solar light panels (4) are distributed in a linear array and fixedly mounted on the inner top surface of the chassis (1); A driving structure, arranged on the chassis (1) and used for driving the plastic part to rotate; Four groups of clamping structures are arranged on the driving structure and are used to clamp and fix the plastic parts; Two guide rods (8) are symmetrically fixedly mounted on the inner wall of the chassis (1); Two groups of humidification structures are respectively arranged on the two guide rods (8) and are used to increase the humidity in the chassis (1) in all directions.

2. A plastic aging performance evaluation instrument according to claim 1, characterized in that: The driving structure comprises: A rotating frame (51) rotatably mounted on the inner wall of the chassis (1); A driving motor (52) is fixedly mounted on a side of the chassis (1), and an output end of the driving motor (52) is fixedly connected to the rotating frame (51); Four clamping frames (53) are distributed in a circular array and rotatably mounted on the side of the rotating frame (51); Four transmission gears (54) are respectively fixedly mounted on one end of the four clamping frames (53) away from the rotating frame (51); A fixed gear ring (55) is fixedly mounted on the inner wall of the chassis (1), and the fixed gear ring (55) is meshed with the four transmission gears (54).

3. A plastic aging performance evaluation instrument according to claim 2, characterized in that: The rotating frame (51) is arranged in a cross shape.

4. A plastic aging performance evaluation instrument according to claim 2, characterized in that: The clamping structure comprises: A fixing frame (61) fixedly mounted on one end of the inner wall of the clamping frame (53); A plurality of push rods (62) are distributed in a linear array and are arranged through one end of the clamping frame (53) away from the fixing frame (61), and the push rods (62) are slidably connected to the through-holes; A plurality of pressing plates (63) are respectively fixedly mounted on one end of a plurality of the push rods (62) located on the inner side of the clamping frame (53); A plurality of springs (64) are respectively mounted on the plurality of push rods (62), and two ends of the springs (64) are respectively fixedly connected to the push rods (62) and the clamping frame (53); A plurality of collars (65) are respectively sleeved on the outer walls of one end of a plurality of the push rods (62) located outside the clamping frame (53); A plurality of connecting rods (66) are respectively fixedly mounted on the outer walls of the plurality of collars (65); A pull plate (67) fixedly mounted on the top ends of the plurality of connecting rods (66); A plurality of groups of limit blocks (68) are respectively arranged at one end of a plurality of the push rods (62) located outside the clamping frame (53), and the number of the limit blocks (68) in each group is two.

5. A plastic aging performance evaluation instrument according to claim 4, characterized in that: The two limit blocks (68) are symmetrically arranged at the end of the push rod (62), and the inner wall of the collar (65) is in contact with the outer wall of the push rod (62).

6. A plastic aging performance evaluation instrument according to claim 4, characterized in that: A plurality of rubber strips (7) distributed in a linear array are fixedly mounted on the side surface of the clamping frame (53) located inside the fixing frame (61).

7. A plastic aging performance evaluation instrument according to claim 2, characterized in that: The humidification structure comprises: A driving rod (91) is rotatably mounted on the inner wall of the chassis (1), and the driving rod (91) is located directly above the guide rod (8); Four guide plates (92) are arranged in a linear array and sleeved on the driving rod (91); Four groups of reciprocating threads (93) are arranged in a linear array on the outer wall of the driving rod (91), and the four guide plates (92) are respectively threadedly connected to the four groups of reciprocating threads (93); Four support rings (94) are respectively fixedly mounted on the bottom ends of the four guide plates (92); Four rotating rings (95) are rotatably mounted on the sides of the four support rings (94), and the support rings (94) and the rotating rings (95) are both located on the outer wall of the guide rod (8); Four wet air nozzles (96) are respectively fixedly mounted on the outer walls of the four rotating rings (95); Four groups of guide mechanisms are distributed in a linear array and arranged between the guide rod (8) and the four rotating rings (95).

8. A plastic aging performance evaluation instrument according to claim 7, characterized in that: The guiding mechanism comprises: A guide groove (97) is provided on the outer wall of the guide rod (8); The guide block (98) is fixedly mounted on the inner wall of the rotating ring (95), and the guide block (98) is slidably connected to the inner wall of the guide groove (97).

9. A plastic aging performance evaluation instrument according to claim 8, characterized in that: The guide groove (97) is configured to be corrugated.

10. The plastic aging performance evaluation instrument according to claim 7, characterized in that: A driven wheel (10) is fixedly mounted on the ends of the two driving rods (91), and the two driven wheels (10) are connected to the output end of the driving motor (52) via a synchronous belt transmission.

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