Plastic aging test box

Abstract

The utility model relates to the technical field of rubber plasticity test equipment, in particular to a plasticity aging test box. The plastic aging test box comprises a heat insulation box body and a heat insulation box door mounted at the opening end of the heat insulation box body; the computer control terminal is embedded in one end, deviating from the heat insulation box door, of the heat insulation box body; the cross-shaped built-in frame is fixedly installed in an inner cavity of the heat insulation box body and divides the heat insulation box body into four independent cavities, metal sleeves are installed in the four independent cavities, electromagnetic coils are installed on the metal sleeves, and the electromagnetic coils are electrically connected with the computer control terminal; and the sealing baffle is fixedly installed at the end, stretching into the heat insulation box body, of the cross-shaped built-in frame, the sealing baffle is provided with four installation holes communicating with the four independent cavities in a one-to-one correspondence mode, transmission rods are rotationally installed in the four installation holes, and clamping assemblies are fixedly installed at the ends, facing the interior of the metal sleeves, of the transmission rods. The plastic aging test box provided by the utility model has the advantages of convenience in sample clamping and uniformity in heating.

Description

Technical Field

[0001] This utility model relates to the technical field of rubber plasticity testing equipment, and in particular to a plasticity aging test chamber. Background Technology

[0002] Rubber, also known as elastomer, is a type of elastic polymer. Rubber is broadly classified into two categories: natural rubber and synthetic rubber. Natural rubber originates from rubber trees and rubber grass, and its main component is cis-1,4-polyisoprene, classifying it as a non-polar rubber. Synthetic rubber is mostly synthesized from monomers through polymerization reactions, allowing for large-scale production, with yields many times higher than those of natural rubber.

[0003] When rubber is produced and used, it needs to undergo various performance tests. Among them, plastic aging is an experimental process that uses an aging test chamber to simulate the accelerated aging of materials under specific environmental conditions (such as temperature, humidity, light, oxygen, etc.). The aging test chamber is mainly used to evaluate the aging resistance of polymer materials such as plastics, rubber, coatings, and adhesives. However, when simulating high-temperature aging, the existing aging chambers are inconvenient to place and handle samples, and when the samples are statically placed in the aging chamber, the samples are heated unevenly, which affects the efficiency of the aging test.

[0004] Therefore, it is necessary to provide a plastic aging test chamber to solve the above-mentioned technical problems. Summary of the Invention

[0005] To solve the above-mentioned technical problems, this utility model provides a plastic aging test chamber.

[0006] The plastic aging test chamber provided by this utility model includes: an insulated chamber body, and an insulated chamber door installed at the opening end of the insulated chamber body;

[0007] A computer control terminal is embedded in the end of the insulated box that is away from the door of the insulated box.

[0008] A cross-shaped internal frame is fixedly installed in the inner cavity of the heat insulation box, dividing the heat insulation box into four independent chambers. Each of the four independent chambers is equipped with a metal sleeve, and an electromagnetic coil is installed on the metal sleeve. The electromagnetic coil is electrically connected to a computer control terminal.

[0009] A sealing plate is fixedly installed at one end of the cross-shaped internal frame that extends into the heat insulation box. The sealing plate has four independent chambers that are connected to each other and have four mounting holes. A transmission rod is rotatably installed in each of the four mounting holes. A clamping assembly is fixedly installed at one end of the transmission rod facing the metal sleeve, and a drive assembly for driving the transmission rod to rotate is installed at the other end of the sealing plate.

[0010] Preferably, the insulated box door and the corresponding parts of the four independent chambers are all fitted with observation glass.

[0011] Preferably, the cross-shaped internal frame has a cavity, and polyurethane foam is embedded in the cavity.

[0012] Preferably, the clamping assembly includes a U-shaped support rod frame, which is fixedly connected to the transmission rod by screws. Sliding sleeves are slidably installed on the two crossbars of the U-shaped support rod frame, and a placement plate is fixedly installed at one end of the two sliding sleeves. The placement plate has a placement groove, a limiting plate for sealing the placement groove is installed on the placement plate, and a locking screw for locking the limiting plate is installed on the placement plate. The limiting plate has a threaded through hole that is threadedly connected to the locking screw.

[0013] Preferably, a pull rod is fixedly installed at one end of the two sliding sleeves near the placement plate, and a connecting plate is fixedly installed at the other end of the two sliding sleeves. A return spring is symmetrically installed on the connecting plate. The return spring is sleeved on the crossbar of the U-shaped support rod frame, and the end of the return spring away from the connecting plate is fixedly connected to the U-shaped support rod frame.

[0014] Preferably, the drive assembly includes a support frame, which is fixedly mounted on the sealing plate, and an external gear ring is rotatably mounted on the support frame. An internal gear ring is fixedly mounted at one end of the external gear ring. A drive motor is mounted on the support frame, and a transmission gear that meshes with the internal gear ring is mounted on the output shaft of the drive motor. The drive assembly also includes a driven gear fixedly sleeved on a transmission rod, which meshes with the external gear ring. The drive motor is electrically connected to a computer control terminal.

[0015] Preferably, a temperature and humidity sensor is embedded in the metal sleeve, and the temperature and humidity sensor is electrically connected to a computer control terminal.

[0016] Compared with related technologies, the plastic aging test chamber provided by this utility model has the following beneficial effects:

[0017] This utility model provides a plastic aging test chamber. By setting a transmission rod on the sealing plate, and setting a clamping assembly on the transmission rod, the clamping assembly utilizes the cooperation of a U-shaped support rod frame, a sliding sleeve, a placement plate, a limiting plate, a return spring, a connecting plate, a placement groove, a pull rod, and a locking screw to facilitate the clamping of rubber samples in a metal sleeve. Then, using a driving assembly, the clamping assembly can be driven to rotate the rubber sample, so that it is heated evenly and the efficiency of the aging test is improved. Attached Figure Description

[0018] Figure 1 A schematic diagram of a preferred embodiment of the plastic aging test chamber provided by this utility model;

[0019] Figure 2 Another structural schematic diagram of the plastic aging test chamber provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure of the sealing plate provided by this utility model, in which a clamping assembly is installed;

[0021] Figure 4 A schematic diagram of the clamping assembly provided by this utility model.

[0022] The following components are labeled in the diagram: 1. Insulation box body; 2. Insulation box door; 21. Observation glass; 3. Cross-shaped internal frame; 4. Metal sleeve; 41. Electromagnetic coil; 5. Sealing plate; 51. Transmission rod; 6. Clamping assembly; 61. U-shaped support rod frame; 62. Sliding sleeve; 63. Placement plate; 64. Limiting plate; 65. Return spring; 66. Connecting plate; 601. Placement slot; 621. Pull rod; 631. Locking screw; 7. Drive assembly; 71. Support frame; 72. External gear ring; 73. Internal gear ring; 74. Drive motor; 741. Transmission gear; 75. Driven gear; 8. Temperature and humidity sensor; 9. Computer control terminal. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0025] Please see Figures 1 to 4 This utility model provides a plastic aging test chamber, which includes:

[0026] Insulated enclosure 1, and insulated enclosure door 2 installed at the opening end of insulated enclosure 1;

[0027] A computer control terminal 9 is embedded in the end of the heat insulation box 1 that is away from the heat insulation box door 2;

[0028] The cross-shaped built-in frame 3 is fixedly installed in the inner cavity of the heat insulation box 1, and divides the heat insulation box 1 into four independent chambers. Each of the four independent chambers is equipped with a metal sleeve 4, and an electromagnetic coil 41 is installed on the metal sleeve 4. The electromagnetic coil 41 is electrically connected to the computer control terminal 9.

[0029] The sealing plate 5 is fixedly installed at one end of the cross-shaped internal frame 3 that extends into the heat insulation box 1. The sealing plate 5 has four independent chambers that are connected to each other and four mounting holes. A transmission rod 51 is rotatably installed in each of the four mounting holes. A clamping assembly 6 is fixedly installed at one end of the transmission rod 51 facing the metal sleeve 4. A drive assembly 7 that drives the transmission rod 51 to rotate is installed at the other end of the sealing plate 5.

[0030] The clamping assembly 6 includes a U-shaped support rod frame 61, which is fixedly connected to the transmission rod 51 by screws. Sliding sleeves 62 are slidably installed on the two crossbars of the U-shaped support rod frame 61. A placement plate 63 is fixedly installed on one end of the two sliding sleeves 62. A placement groove 601 is provided on the placement plate 63. A limiting plate 64 for sealing the placement groove 601 is installed on the placement plate 63. A locking screw 631 for locking the limiting plate 64 is installed on the placement plate 63. The limiting plate 64 has a threaded through hole that is threadedly connected to the locking screw 631.

[0031] Two sliding sleeves 62 are fixedly mounted with a pull rod 621 at one end near the placement plate 63, and a connecting plate 66 is fixedly mounted at the other end of the two sliding sleeves 62. A return spring 65 is symmetrically mounted on the connecting plate 66. The return spring 65 is sleeved on the crossbar of the U-shaped support rod frame 61, and the end of the return spring 65 away from the connecting plate 66 is fixedly connected to the U-shaped support rod frame 61.

[0032] It should be noted that during use, the heat insulation chamber door 2 is opened, the pull rod 621 is pulled to pull the placement plate 63 out of the metal sleeve 4, and the limiting plate 64 is pulled out of the placement groove 601. Then, the rubber sample is placed in the placement groove 601, and the limiting plate 64 is pushed back. After being pushed back, the limiting plate 64 is locked onto the placement plate 63 using the locking screw 631. Then, the pull rod 621 is released, and under the drive of the return spring 65, the sliding sleeve 62 is automatically pulled back along the U-shaped support rod frame 61 into the metal sleeve 4. Then, the heat insulation chamber door 2 is closed, and the computer control terminal 9 controls the drive assembly 7 to drive the transmission rod 51 to drive the U-shaped support rod frame 61 to rotate. Then, the electromagnetic coil 41 is controlled to heat the metal sleeve 4 and the temperature is controlled according to the set test temperature.

[0033] It should also be noted that the insulated chamber 1 is divided into four independent chambers by the cross-shaped internal frame 3. When heating is achieved using the electromagnetic coil 41, the computer control terminal 9 employs Wallace technology, with direct microcomputer program control, PID automatic temperature correction, and stable temperature cycling within the four independent chambers. The temperature and time of the four chambers can be set and operated independently or simultaneously; the zero point and adjustment of the temperature are directly corrected in the microcomputer. It features operation screens such as "operation screen," "working screen," and "setting screen," making operation simple and achieving automated control.

[0034] It is worth noting that, in order to simulate various aging environments, the four independent chambers of the insulated enclosure 1 can also be connected to simulated gases such as ozone generators for ozone aging tests on materials such as rubber. Existing lighting components such as ultraviolet lamps or xenon lamps can be installed inside the metal sleeve 4 to simulate sunlight, facilitating diversified aging tests.

[0035] Furthermore, in order to enable the four independent chambers to work independently, the cross-shaped internal frame 3 has a cavity, and polyurethane foam is embedded in the cavity. This facilitates the isolation of the four independent chambers, allowing them to be individually temperature-controlled.

[0036] The metal sleeve 4 is equipped with a temperature and humidity sensor 8, which is electrically connected to the computer control terminal 9. This allows the temperature inside the metal sleeve 4 to be detected in real time by the temperature and humidity sensor 8, and then the temperature is fed back to the computer control terminal 9 so that the computer control terminal 9 can adjust the temperature in a timely manner.

[0037] In the embodiments of this utility model, please refer to Figures 1 to 2 The insulated box door 2 and the corresponding parts of the four independent chambers are all fitted with observation glass 21;

[0038] It should be noted that the observation glass 21 is made of high-temperature resistant transparent glass, which facilitates observation of the four independent chambers.

[0039] In the embodiments of this utility model, please refer to Figures 1 to 4 The drive assembly 7 includes a support frame 71, which is fixedly mounted on the baffle plate 5. An external gear ring 72 is rotatably mounted on the support frame 71. An internal gear ring 73 is fixedly mounted on one end of the external gear ring 72. A drive motor 74 is mounted on the support frame 71. A transmission gear 741 that meshes with the internal gear ring 73 is mounted on the output shaft of the drive motor 74. The drive assembly 7 also includes a passive gear 75 fixedly sleeved on the transmission rod 51. The passive gear 75 meshes with the external gear ring 72. The drive motor 74 is electrically connected to the computer control terminal 9.

[0040] It should be noted that when the drive assembly 7 is in use, the drive motor 74 is started by controlling the computer control terminal 9. The drive motor 74 drives the internal gear ring 73 to rotate through the transmission gear 741. The internal gear ring 73 drives the external gear ring 72 to rotate synchronously on the support frame 71. When the external gear ring 72 rotates, it meshes with the driven gear 75, thereby driving the transmission rod 51 to rotate synchronously, which in turn drives the clamping assembly 6 to rotate.

[0041] The working principle of the plastic aging test chamber provided by this utility model is as follows:

[0042] In use, open the heat insulation box door 2, pull the lever 621 to pull the placement plate 63 out of the metal sleeve 4, and pull the limiting plate 64 out of the placement groove 601. Then place the rubber sample in the placement groove 601, and then push the limiting plate 64 back. After pushing it back, use the locking screw 631 to lock the limiting plate 64 onto the placement plate 63. Then release the lever 621. Driven by the return spring 65, the sliding sleeve 62 will automatically slide back into the metal sleeve 4 along the U-shaped support rod frame 61. After closing the heat insulation box door 2, the drive motor 74 is started by controlling the computer control terminal 9. The drive motor 74 drives the internal gear ring 73 to rotate through the transmission gear 741. The internal gear ring 73 drives the external gear ring 72 to rotate synchronously on the support frame 71. When the external gear ring 72 rotates, it meshes with the passive gear 75, thereby driving the transmission rod 51 to rotate synchronously, and then driving the U-shaped support frame 61 to rotate. Then, the electromagnetic coil 41 is controlled to heat the metal sleeve 4 and the temperature is controlled according to the set test temperature.

[0043] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.

[0044] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A plastic aging test chamber, comprising: Insulated box (1), and insulated box door (2) installed at the opening end of the insulated box (1); A computer control terminal (9) is embedded in the end of the heat insulation box (1) away from the heat insulation box door (2); Its characteristic is that it further includes: The cross-shaped built-in frame (3) is fixedly installed in the inner cavity of the heat insulation box (1) and divides the heat insulation box (1) into four independent chambers. Each of the four independent chambers is equipped with a metal sleeve (4). An electromagnetic coil (41) is installed on the metal sleeve (4). The electromagnetic coil (41) is electrically connected to the computer control terminal (9). A sealing plate (5) is fixedly installed at one end of the cross-shaped internal frame (3) that extends into the heat insulation box (1). The sealing plate (5) has four independent chambers connected to each other and four mounting holes. A transmission rod (51) is rotatably installed in each of the four mounting holes. A clamping assembly (6) is fixedly installed at one end of the transmission rod (51) facing the metal sleeve (4). A driving assembly (7) for driving the transmission rod (51) to rotate is installed at the other end of the sealing plate (5).

2. The plastic aging test chamber of claim 1, wherein The insulated box door (2) and the corresponding parts of the four independent chambers are each fitted with observation glass (21).

3. The plastic aging test chamber of claim 1, wherein, The cross-shaped internal frame (3) has a cavity, and polyurethane foam is embedded in the cavity.

4. The plastic aging test chamber according to claim 1, characterized in that, The clamping assembly (6) includes a U-shaped support rod frame (61), which is fixedly connected to the transmission rod (51) by screws. Sliding sleeves (62) are slidably installed on the two crossbars of the U-shaped support rod frame (61). A placement plate (63) is fixedly installed at one end of the two sliding sleeves (62). A placement groove (601) is opened on the placement plate (63). A limiting plate (64) for sealing the placement groove (601) is installed on the placement plate (63). A locking screw (631) for locking the limiting plate (64) is installed on the placement plate (63). A threaded through hole for threaded connection with the locking screw (631) is opened on the limiting plate (64).

5. The plastic aging test chamber according to claim 4, characterized in that, A pull rod (621) is fixedly installed on one end of the two sliding sleeves (62) near the placement plate (63), and a connecting plate (66) is fixedly installed on the other end of the two sliding sleeves (62). A return spring (65) is symmetrically installed on the connecting plate (66). The return spring (65) is sleeved on the crossbar of the U-shaped support rod frame (61), and the end of the return spring (65) away from the connecting plate (66) is fixedly connected to the U-shaped support rod frame (61).

6. The plastic aging test chamber according to claim 1, characterized in that, The drive assembly (7) includes a support frame (71), which is fixedly mounted on the sealing plate (5). An external gear ring (72) is rotatably mounted on the support frame (71). An internal gear ring (73) is fixedly mounted on one end of the external gear ring (72). A drive motor (74) is mounted on the support frame (71). A transmission gear (741) meshing with the internal gear ring (73) is mounted on the output shaft of the drive motor (74). The drive assembly (7) also includes a passive gear (75) fixedly sleeved on the transmission rod (51). The passive gear (75) meshes with the external gear ring (72). The drive motor (74) is electrically connected to a computer control terminal (9).

7. The plastic aging test chamber of claim 1, wherein A temperature and humidity sensor (8) is embedded in the metal sleeve (4), and the temperature and humidity sensor (8) is electrically connected to the computer control terminal (9).

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