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CN-121994688-A - Device and method for detecting yellowing resistance of modified epoxy resin curing agent

CN121994688ACN 121994688 ACN121994688 ACN 121994688ACN-121994688-A

Abstract

The invention discloses a device and a method for detecting yellowing resistance of a modified epoxy resin curing agent, wherein the device comprises a detection box, and a lamplight switching mechanism is arranged in the detection box and used for realizing the yellowing resistance detection operation of a modified epoxy resin curing agent sample. According to the yellowing-resistant detection device and method for the modified epoxy resin curing agent, through the integrated control of the detection part, the angle regulation part, the light supplementing unit and the heat dissipation part which are arranged in the control box, the coordinated operation of each functional module is realized, the orderly connection of light source switching, angle regulation, synchronous light supplementing and heat dissipation cooling operation is perfected, each part is not required to be manually and independently regulated, the operation flow is simplified, the manual operation error is reduced, meanwhile, the redundant arrangement of a power source is reduced through the mechanical linkage structure of each module, the stability and the energy consumption economy of the device operation are improved, and the efficient, accurate and low-consumption yellowing-resistant detection is realized.

Inventors

  • WANG NIANHUA

Assignees

  • 黄山五环科技有限公司

Dates

Publication Date
20260508
Application Date
20260205

Claims (10)

  1. 1. The utility model provides a modified epoxy resin curing agent yellowing-resistant detection device, including detection case (1), install radiating case (2) in the bottom of detection case (1), radiating case (2) inside is provided with radiating piece (3), and control box (4) are installed on the right side of detection case (1) and radiating case (2), its characterized in that, and the inside of detection case (1) is provided with light switching mechanism and is used for realizing the yellowing-resistant detection operation of modified epoxy resin curing agent sample, and light switching mechanism includes: The detection part (5) realizes irradiation operation on the modified epoxy resin curing agent sample through light source switching of different wavelengths; The angle adjusting and controlling part (6) comprises an installation frame (61), wherein driving boxes (62) are symmetrically arranged on two sides of the installation frame (61), pneumatic pieces (63) are arranged in the driving boxes (62) to enable a lower transverse shaft (64) to rotate, one end of the lower transverse shaft (64) sequentially penetrates through the driving boxes (62) and the installation frame (61) and extends to the inner side of the installation frame (61), lenses (65) are arranged between opposite end faces of the lower transverse shaft (64) to achieve adjustment of an irradiation light angle, and meanwhile, a light supplementing unit (7) is arranged above the lower transverse shaft (64) to be matched with the lenses (65) to adjust a synchronous adjustment light source, and rotation of the lower transverse shaft (64) synchronously drives adjustment and control of the light supplementing unit (7); The placing part (8) is arranged at the bottom of the inner cavity of the detection box (1) and is used for placing the modified epoxy resin curing agent sample.
  2. 2. The device for detecting yellowing resistance of a modified epoxy resin curing agent according to claim 1, wherein the heat dissipation part (3) comprises a heat dissipation fan (31) arranged at the bottom of an inner cavity of the heat dissipation box (2), heat dissipation holes (32) are formed in the front side surface and the rear side surface of the heat dissipation box (2), and vent holes are formed in the communication position of the detection box (1) and the heat dissipation box (2) to realize hot air discharge.
  3. 3. The modified epoxy resin curing agent yellowing-resistant detection device according to claim 1, wherein the detection unit (5) comprises: The servo motor (51) is fixedly arranged on the inner side of the driving box (62), one end of an output shaft of the servo motor (51) is provided with a servo shaft (52) through a coupler, a concave frame (55) is arranged above the opposite side of the driving box (62), and one end of the servo shaft (52) penetrates through the driving box (62) and the mounting frame (61) and extends to the inner side of the concave frame (55); The installation block (53) is in a cuboid shape, the adjacent four sides of the installation block (53) are sequentially provided with light source plates (54) with different wavelengths, one end of the servo shaft (52) is fixedly connected with the side face of the installation block (53), and the opposite sides of the installation block (53) rotate with the inner side of the concave frame (55) through the installation support rods.
  4. 4. The device for detecting yellowing resistance of a modified epoxy resin curing agent according to claim 1, wherein the pneumatic member (63) comprises: the cylinder (631) is fixedly arranged on the side wall of the driving box (62), and a piston rod (632) is connected inside the cylinder (631) in a sliding manner; and one end of the piston rod (632) is fixedly connected with the end surface of the rack (633), a sector gear (634) is arranged at the end surface of the extending end of the lower transverse shaft (64), the sector gear (634) is meshed with the surface of the rack (633), namely, the sector gear (634) is driven to swing back and forth by taking the lower transverse shaft (64) as the center when the rack (633) moves back and forth.
  5. 5. The yellowing resistance detection device for a modified epoxy resin curing agent according to claim 1, wherein the light supplementing unit (7) comprises: The partition plate (71) is horizontally arranged in the driving box (62), the partition plate (71) is penetrated and provided with a vertical shaft (72) through a rotating bearing, the bottom end of the vertical shaft (72) enables an upper transverse shaft (73) to rotate on the inner wall of the driving box (62) through a meshing piece (74), and the surfaces of the upper transverse shaft (73) and the lower transverse shaft (64) are in transmission connection through a transmission assembly (75); the shielding block (76), and the inside of shielding block (76) makes light filling lamp (78) carry out horizontal migration through extensible member (77), and the logical groove that is adapted to light filling lamp (78) removal is seted up to the inside of shielding block (76), and the removal of extensible member (77) is realized through the rotation of vertical axle (72).
  6. 6. The device for detecting yellowing resistance of a modified epoxy resin curing agent according to claim 5, wherein the engagement member (74) comprises a main bevel gear (741) fixedly installed at the bottom end of the vertical shaft (72), an auxiliary bevel gear (742) is fixedly installed at the end of the upper transverse shaft (73), and surfaces of the main bevel gear (741) and the auxiliary bevel gear (742) are engaged, namely, an operation that the vertical shaft (72) rotates when the upper transverse shaft (73) rotates is realized.
  7. 7. A modified epoxy resin curing agent yellowing-resistant detection device according to claim 5, wherein the transmission assembly (75) comprises a lower transmission wheel (751) fixedly arranged on the surface of the lower transverse shaft (64) and an upper transmission wheel (752) fixedly arranged on the surface of the upper transverse shaft (73), and the surfaces of the upper transmission wheel (752) and the lower transmission wheel (751) are connected through a transmission belt (753) to realize transmission operation, namely the lower transverse shaft (64) rotates while the upper transverse shaft (73) rotates synchronously.
  8. 8. The yellowing resistance detection device of a modified epoxy resin curing agent according to claim 5, wherein the expansion member (77) comprises: the cam plate (771) is fixed with the top end of the vertical shaft (72) at the bottom center; The baffle plate (772) is fixedly arranged on the left inner wall and the right inner wall of the driving box (62), a symmetrical moving rod (773) penetrates through the baffle plate (772), one end of the moving rod (773) is fixed with the side face of the shell of the light supplementing lamp (78), the other end of the moving rod (773) is provided with a moving plate (774), the opposite faces of the moving plate (774) and the cam plate (771) are always kept in contact, and the moving plate (774) stretches and moves according to the change from the contact point of the cam plate (771) and the moving plate (774) to the center of the cam plate (771) in the rotating process of the cam plate (771); the reset spring (775) is sleeved on the surface of the movable rod (773), two ends of the reset spring (775) are fixed on opposite sides of the baffle plate (772) and the abutting plate (774), and the elastic force of the reset spring (775) under no other external force enables the abutting plate (774) to move towards the direction where the cam plate (771) is located.
  9. 9. The yellowing resistance detection device for a modified epoxy resin curing agent according to claim 1, wherein the placement portion (8) comprises: The placement table (81), a handle (82) is arranged on the left side of the placement table (81), and symmetrical sliding grooves (83) are formed in the bottom of the placement table (81); The sliding rail (84) is symmetrically arranged at the bottom of the inner cavity of the detection box (1), and the sliding groove (83) and the sliding rail (84) are matched to slide, so that the moving operation of taking the modified epoxy resin curing agent sample on the placement table (81) is realized.
  10. 10. A method for detecting yellowing resistance of a modified epoxy resin curing agent, which is characterized by comprising the following steps of: S1, placing a modified epoxy resin curing agent sample on a placing part (8); s2, performing irradiation operation by using the detection part (5) and realizing light source switching of different wavelengths according to requirements, and irradiating the sample on the placement part (8) through the lens (65); S3, angle change of the lens (65) is realized through the angle adjusting and controlling part (6), so that the irradiation direction of the light source is changed, and the light supplementing unit (7) is synchronously adjusted and controlled to supplement the edge irradiation light source.

Description

Device and method for detecting yellowing resistance of modified epoxy resin curing agent Technical Field The invention relates to the technical field of material performance detection, in particular to a yellowing-resistant detection device and method for a modified epoxy resin curing agent. Background Epoxy resin and its curing agent are widely used in the fields of paint, adhesive, composite material, etc. Under outdoor or specific illumination environment, epoxy systems, especially certain amine curing agents, are susceptible to yellowing caused by factors such as ultraviolet light, heat, oxygen and the like, so that the appearance of products is degraded, and even the physical properties of the products are affected. The patent name is referring to a yellowing-resistant detection device for cardanol modified epoxy resin curing agent (patent publication number: CN217931317U, patent publication number: 2022-11-29), which comprises a box body, wherein the outer wall of the top end of the box body is fixedly connected with a motor, an output shaft of the motor rotates and extends into the box body and is fixedly connected with one end of a rotating rod at the end part, an angle adjusting component is movably arranged at the other end of the rotating rod, a purple light lamp is fixedly connected with the bottom end of the angle adjusting component, a baffle fixedly connected with the inner wall of the box body is arranged at the bottom of the purple light lamp, a through hole is formed in the middle part of the baffle, a movable cylinder is movably arranged in the through hole, a supporting plate is fixedly connected with the top end of the movable cylinder, a supporting column is sleeved at the bottom end of the movable cylinder in a sliding mode, the bottom end of the supporting column is fixedly connected with the inner wall of the box body, a spring is sleeved outside the supporting column, a plurality of notches are formed in the periphery of the through hole, and clamping jaws are hinged in the notches. Based on the description of the above document, in the process of adjusting the existing detection lamp, the detection light source is single, the complex illumination environment is difficult to simulate, the detection is realized, the illumination angle is fixed, the multi-angle illumination scene generated by the change of the sunlight angle in the environment cannot be simulated, the deviation between the detection process and the actual application scene is caused, and in the process of changing the light angle, the condition that the illumination of the central area of a sample is sufficient and the illumination of the edge area is weakened, and the illumination intensity of each part of the sample is inconsistent is easily generated. Disclosure of Invention Aiming at the defects of the prior art, the invention provides a yellowing-resistant detection device and method for a modified epoxy resin curing agent, and solves the problems that the existing yellowing-resistant detection device is single in detection light source, fixed in irradiation angle, poor in sample irradiation uniformity and in deviation of detection data in an edge area. The invention is realized by the following technical scheme that the device for detecting yellowing resistance of the modified epoxy resin curing agent comprises a detection box, wherein a heat dissipation box is arranged at the bottom of the detection box, a heat dissipation piece is arranged in the heat dissipation box, a control box is arranged on the right sides of the detection box and the heat dissipation box, a light switching mechanism is arranged in the detection box and used for realizing the yellowing resistance detection operation of a modified epoxy resin curing agent sample, and the light switching mechanism comprises: The detection part realizes irradiation operation on the modified epoxy resin curing agent sample through light source switching of different wavelengths; The angle adjusting and controlling part comprises a mounting frame, wherein driving boxes are symmetrically arranged on two sides of the mounting frame, a pneumatic piece is arranged in the driving boxes to enable a lower cross shaft to rotate, one end of the lower cross shaft sequentially penetrates through the driving boxes and the mounting frame and extends to the inner side of the mounting frame, lenses are arranged between opposite end faces of the lower cross shaft to adjust the irradiation light angle, a light supplementing unit is arranged above the lower cross shaft and is matched with the lenses to adjust a synchronous adjustment light source, and the rotation of the lower cross shaft synchronously drives adjustment and control of the light supplementing unit; and the placing part is arranged at the bottom of the inner cavity of the detection box and used for placing the modified epoxy resin curing agent sample. Preferably, the heat dissipation piece comprises a heat dis