Color contrast evaluation device

Abstract

The invention relates to the technical field of color contrast evaluation equipment, and discloses a color contrast evaluation device which can drive a placement table to move through a driving rod so as to assist detection personnel in performing multi-angle, multi-direction and multi-distance observation detection on a sample piece on the placement table, and the detection effect on complex colors is improved.

Description

Technical Field

[0001] This application relates to the field of color contrast evaluation equipment technology, such as a color contrast evaluation device. Background Technology

[0002] With the continuous improvement of industrial manufacturing levels, the evaluation and control of each stage of product design has become increasingly standardized and refined. Color, as the primary visual element, plays a crucial role in shaping the differentiated appearance of products. In recent years, the effects of color injection molding and spraying processes have become increasingly diverse. Besides conventional solid colors or metallic effects, there are now more rich and three-dimensional color effects such as pearlescent iridescence and rainbow gradients. Therefore, the evaluation of color effect samples is becoming increasingly comprehensive and diversified.

[0003] In related technologies, it is generally necessary for inspectors to manually inspect samples by holding them at fixed angles, positions, and distances.

[0004] In the process of implementing the embodiments of this disclosure, at least the following problems were found in the related art:

[0005] In related technologies, existing manual inspection techniques can only be applied to samples with conventional solid colors or metallic colors. However, for more complex color effects such as iridescent pearl paint, dazzling metallic paint, and chameleon paint, multi-angle, multi-directional, and multi-distance observation is required for three-dimensional evaluation. This results in the unsatisfactory detection effect of existing inspection techniques on complex colors.

[0006] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this application, and therefore may include information that does not constitute prior art known to those skilled in the art. Summary of the Invention

[0007] To provide a basic understanding of some aspects of the disclosed embodiments, a brief summary is given below. This summary is not intended as a general commentary, nor is it intended to identify key / important components or describe the scope of protection of these embodiments, but rather as a prelude to the detailed description that follows.

[0008] This disclosure provides a color contrast evaluation device that can drive a placement stage to move via a drive rod, thereby assisting inspectors in observing and inspecting samples on the placement stage from multiple angles, directions, and distances, and improving the detection effect for complex colors.

[0009] The color contrast evaluation device provided by the embodiments of the present disclosure is used for color contrast evaluation of a sample. The color evaluation device comprises a base, a driving rod and a placing table. The base is provided with a control device; the driving rod comprises a fixed end and a movable end, and the fixed end is installed on the base; the placing table is installed on the movable end of the driving rod, and the placing table is used for placing the sample; wherein the control device is electrically connected with the driving rod to control the movement of the movable end relative to the fixed end.

[0010] In some embodiments, the driving rod comprises a support rod and a connecting rod. The support rod comprises a fixed end fixedly installed on the base and a first connecting end away from the base; the connecting rod comprises a second connecting end and a movable end, and the second connecting end is movably connected with the first connecting end; wherein the control device is used for the movement of the connecting rod relative to the support rod.

[0011] In some embodiments, the support rod is provided with a hollow guide groove, and the second connecting end of the connecting rod is inserted into the guide groove; wherein the connecting rod can be extended out of the support rod or retracted into the support rod along the guide groove.

[0012] In some embodiments, the driving rod further comprises a driving device. The driving device is drivingly connected with the connecting rod to drive the connecting rod to move along the guide groove.

[0013] In some embodiments, the guide groove is provided with a limiting portion near the first connecting end; the connecting rod is provided with a limiting matching portion near the second connecting end; in the case that the connecting rod is extended to the limit position, the limiting portion stops the limiting matching portion, thereby limiting the connecting rod.

[0014] In some embodiments, the driving rod further comprises an angle deflection module. The angle deflection module is arranged on the movable end, and the angle deflection module is drivingly connected with the placing table; wherein the control device is further electrically connected with the angle deflection module to control the angle deflection module to drive the placing table to rotate.

[0015] In some embodiments, the angle deflection module drives the placing table to rotate at an angle greater than or equal to 30° and less than or equal to 60°.

[0016] In some embodiments, the color contrast evaluation device further comprises a fixing device. The fixing device is detachably installed on the placing table; in the case that the fixing device is installed on the placing table, the fixing device is at least partially located on the side of the sample away from the placing table to fix the sample on the placing table.

[0017] In some embodiments, the placing table is configured as a magnetic material, and the fixing device is configured as a magnetic material; wherein the fixing device is used for adsorbing on the placing table from the side of the sample away from the placing table.

[0018] In some embodiments, the color contrast evaluation device comprises a plurality of driving rods and a placement table; wherein the control device is electrically connected to the plurality of driving rods respectively to control the movement of the active end of any driving rod.

[0019] The color contrast evaluation device provided by the embodiments of the present disclosure can achieve the following technical effects:

[0020] The color contrast evaluation device provided by the embodiments of the present disclosure is used for color contrast evaluation of a sample. The color evaluation device comprises a base, a driving rod and a placement table. The base is provided with a control device; the driving rod comprises a fixed end and an active end, and the fixed end is installed on the base; the placement table is installed on the active end of the driving rod, and is used for placing the sample; wherein the control device is electrically connected to the driving rod to control the movement of the active end relative to the fixed end. In this way, the user can first place the sample on the placement table, and then control the movement of the active end of the driving rod relative to the fixed end through the control device, thereby driving the movement of the placement table and the sample. In this way, the placement table can be driven to move by the driving rod, so as to assist the detection personnel in observing and detecting the sample on the placement table from multiple angles, multiple directions and multiple distances, thereby improving the detection effect of complex colors.

[0021] The foregoing general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0022] One or more embodiments are exemplarily illustrated by corresponding drawings, which do not constitute limitation on the embodiments, elements with the same reference numerals in the drawings are shown as similar elements, the drawings do not constitute proportional limitation, and wherein:

[0023] Figure 1 is a structural schematic diagram of a color contrast evaluation device provided by the embodiments of the present disclosure;

[0024] Figure 2 is a structural schematic diagram of a driving rod and a placement table provided by the embodiments of the present disclosure;

[0025] Figure 3 is a structural schematic diagram of a driving rod provided by the embodiments of the present disclosure;

[0026] Figure 4 is a structural schematic diagram of a control panel provided by the embodiments of the present disclosure;

[0027] Figure 5 is a structural schematic diagram of another color contrast evaluation device provided by the embodiments of the present disclosure;

[0028] Figure 6 is a structural schematic diagram of another color contrast evaluation device provided by the embodiments of the present disclosure.

[0029] Reference signs:

[0030] 10: base; 11: housing, 12: control panel;

[0031] 20: driving rod; 21: support rod; 211: guide groove; 212: limiting part; 22: connecting rod; 221: limiting fitting part; 23: angle deflection module;

[0032] 31: placing table; 32: fixing device; 33: sample piece. DETAILED DESCRIPTION

[0033] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the attached drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, through multiple details, a sufficient understanding of the disclosed embodiments is provided. However, one or more embodiments can still be implemented without these details. In other cases, in order to simplify the drawings, well-known structures and devices can be simplified.

[0034] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0035] In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "back", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and its embodiments, and are not used to limit the indicated devices, elements or components must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to indicating the orientation or positional relationship, the above-mentioned part of the term can also be used to represent other meanings, for example, the term "upper" can also be used to represent a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the embodiments of the present disclosure can be understood according to the specific circumstances.

[0036] In addition, the terms "set", "connected", and "fixed" should be interpreted broadly. For example, "connected" can be fixed connection, detachable connection, or integral configuration; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through an intermediate medium, or internal communication between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present disclosure according to the specific circumstances.

[0037] Unless otherwise specified, the term "a plurality of" means two or more.

[0038] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B means A or B.

[0039] The term "and / or" is a description of the association relationship between objects, which means that there can be three relationships. For example, A and / or B means that there are three relationships of A or B, or A and B.

[0040] It should be noted that the embodiments in the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0041] As shown in Figures 1 to 6 The embodiments of the present disclosure provide a color contrast evaluation device, which can drive the placement table 31 to move through the driving rod 20, so as to assist the detection personnel to observe and detect the sample 33 on the placement table 31 from multiple angles, multiple directions and multiple distances, and improve the detection effect of complex colors.

[0042] As shown in Figures 1 to 6 The embodiments of the present disclosure provide a color contrast evaluation device for color contrast evaluation of the sample 33. The color evaluation device comprises a base 10, a driving rod 20 and a placement table 31. The base 10 is provided with a control device; the driving rod 20 comprises a fixed end and a movable end, the fixed end is installed on the base 10; the placement table 31 is installed on the movable end of the driving rod 20, and the placement table 31 is used for placing the sample 33; wherein the control device is electrically connected with the driving rod 20 to control the movement of the movable end relative to the fixed end.

[0043] Specifically, the base 10 comprises a shell 11, and the control device is arranged in the shell 11. The fixed end of the driving rod 20 is fixedly installed on the upper end face of the shell 11, and the driving rod 20 is perpendicular to the upper end face of the shell 11. The control device can control the movable end of the driving rod 20 to move relative to the fixed end, and the movable end of the driving rod 20 can drive the placement table 31 to move. The placement table 31 is installed on the movable end of the driving rod 20, and the side of the placement table 31 away from the driving rod 20 constitutes a placement surface, and the user can place the sample 33 on the placement surface for observation and detection.

[0044] After the user places the sample 33 on the placement surface, the user can send a control instruction to the control device to control the driving rod 20 to drive the placement table 31 to move, so that the sample 33 presents different angles and distances with the user. In this way, the color contrast evaluation device can assist the detection personnel to observe and detect the sample 33 on the placement table 31 from multiple angles, multiple directions and multiple distances, thereby improving the detection effect of complex colors.

[0045] Optionally, a side wall surface of the shell 11 is provided with a control panel 12, and the control panel 12 is used to send a control instruction to the control device.

[0046] Specifically, the control panel 12 is provided with a plurality of buttons, and the user can send a control instruction to the control device through the buttons. For example, the control panel 12 is provided with a moving button and a stopping button. When the user presses the moving button, the control device receives a moving instruction and controls the driving rod 20 to drive the placement table 31 to move along a preset track, so that the sample 33 presents different angles and distances with the user. When the user presses the stopping button, the control device receives a stopping instruction and controls the driving rod 20 to stop moving, so as to facilitate the user to observe and detect the sample 33 in the prohibited state.

[0047] As shown in Figure 4 Optionally, the control panel 12 is provided with a light source corresponding to each button in the initial state. When the user presses the moving button, the moving button is always on, and the control panel 12 sends a moving instruction to the control device.

[0048] Optionally, the shell 11 of the base 10 is configured as ABS plastic, and the overall color of the shell 11 is configured as a neutral light gray. Similarly, the placement table 31 is configured as ABS plastic, and the overall color of the placement table 31 is configured as a neutral light gray. It can be understood that configuring the colors of the base 10 and the placement table 31 as a neutral light gray can avoid the colors of the base 10 and the placement table 31 interfering with the observation and detection of the sample 33 by the user.

[0049] As shown in Figures 2 to 3 In some embodiments, the driving rod 20 includes a support rod 21 and a connecting rod 22. The support rod 21 includes a fixed end fixedly installed on the base 10 and a first connecting end away from the base 10. The connecting rod 22 includes a second connecting end and a movable end, and the second connecting end is movably connected with the first connecting end. The control device is used to control the movement of the connecting rod 22 relative to the support rod 21.

[0050] Specifically, the end of the support rod 21 towards the base 10 constitutes a fixed end, the fixed end of the support rod 21 is fixedly installed on the base 10, and the support rod 21 is perpendicular to the upper end surface of the base 10. The end of the support rod 21 away from the base 10 is a first connecting end, and the second connecting end of the connecting rod 22 is movably connected with the first connecting end, so that the connecting rod 22 can move relative to the support rod 21. The end of the connecting rod 22 away from the support rod 21 constitutes a movable end, and the placement table 31 is installed on the movable end of the connecting rod 22. For example, the connecting rod 22 can move away from or close to the base 10 relative to the support rod 21, so as to drive the placement table 31 to move away from or close to the base 10, as shown in Figure 5

[0051] As shown in Figure 3 In some embodiments, the support rod 21 is provided with a hollow guide groove 211, and the second connecting end of the connecting rod 22 is inserted into the guide groove 211; wherein the connecting rod 22 can extend out of the support rod 21 or retract into the support rod 21 along the guide groove 211.

[0052] Specifically, the support rod 21 is provided with a hollow guide groove 211, and the guide groove 211 extends axially along the support rod 21. The first connecting end of the support rod 21 is provided with an opening communicating with the guide groove 211, and the second connecting end of the connecting rod 22 can be inserted into the guide groove 211 through the opening of the first connecting end, so that the connecting rod 22 can slide away from or close to the base 10 along the guide groove 211. For example, when it is needed to increase the distance between the placement table 31 and the user, the connecting rod 22 can be controlled to slide close to the base 10 along the guide groove 211, so that the connecting rod 22 retracts into the guide groove 211; when it is needed to shorten the distance between the placement table 31 and the user, the connecting rod 22 can be controlled to slide away from the base 10 along the guide groove 211, so that the connecting rod 22 extends out of the guide groove 211. In this way, by extending the connecting rod 22 out of the support rod 21 or retracting the connecting rod 22 into the support rod 21, the distance between the placement table 31 and the user can be adjusted, so as to realize multi-distance observation and detection of the sample 33.

[0053] In some embodiments, the driving rod 20 further comprises a driving device. The driving device is drivingly connected with the connecting rod 22 to drive the connecting rod 22 to move along the guide groove 211.

[0054] Specifically, the control device is electrically connected with the driving device, and the user can control the driving device to drive the connecting rod 22 to move along the guide groove 211 through the control device. The driving device can be a pneumatic driving device or a hydraulic driving device.

[0055] ​In some practical applications, the driving device is a pneumatic drive device, which includes an air pump installed on the base 10. A seal can be provided between the connecting rod 22 and the guide groove 211 to configure the guide groove 211 as a sealed cavity. In this case, the air pump can directly inflate or depress the guide groove 211 to drive the connecting rod 22 to move away from or towards the base 10. Alternatively, a separate cylinder can be installed in the guide groove 211, with the cylinder drivingly connected to the second connecting end of the connecting rod 22. The air pump can inflate or depress the cylinder to drive the connecting rod 22 to move away from or towards the base 10.

[0056] In other practical applications, the drive device is a hydraulic drive device, which includes an oil pump and an oil tank disposed on the base 10. Simultaneously, a seal can be provided between the connecting rod 22 and the guide groove 211 to configure the guide groove 211 as a sealed cavity. In this case, the oil pump can directly fill or extract hydraulic oil into the guide groove 211 to drive the connecting rod 22 to move away from or towards the base 10. Alternatively, a separate oil cylinder can be provided in the guide groove 211, and the oil cylinder is driven to the second connecting end of the connecting rod 22. The oil pump can fill or extract hydraulic oil into the oil cylinder to drive the connecting rod 22 to move away from or towards the base 10.

[0057] In other practical applications, the driving device is a mechanical drive device, that is, the driving device includes mechanical drive structures such as gears, racks, or connecting rods. The driving device is connected to the connecting rod 22 through the mechanical drive structure, thereby driving the connecting rod 22 to move away from or towards the base 10.

[0058] Optionally, the control panel 12 includes an up button and a down button. Initially, both the up and down buttons are normally off. When the user presses the up button, it illuminates, and the control panel 12 sends an up command to the control device. Upon receiving the up command, the control device controls the drive mechanism to move the connecting rod 22 away from the base 10, thereby raising the placement platform 31. When the user presses the down button, it illuminates, and the control panel 12 sends a down command to the control device. Upon receiving the down command, the control device controls the drive mechanism to move the connecting rod 22 towards the base 10, thereby lowering the placement platform 31.

[0059] like Figure 3 As shown, in some embodiments, a limiting part 212 is provided at the position of the guide groove 211 near the first connecting end; a limiting mating part 221 is provided at the position of the connecting rod 22 near the second connecting end; when the connecting rod 22 extends to the limit position, the limiting part 212 stops the limiting mating part 221, thereby limiting the connecting rod 22.

[0060] Specifically, the limiting portion 212 is provided with an inner wall of the guide slot 211 and is arranged close to the first connecting end. The limiting matching portion 221 is arranged on the outer wall of the connecting rod 22 and is arranged close to the second connecting end. In the case that the connecting rod 22 extends to the limit position away from the base 10, the limiting portion 212 stops the limiting matching portion 221 to limit the connecting rod 22, and further stop the connecting rod 22 from continuing to move and extend away from the base 10, which causes the connecting rod 22 to come out of the guide slot 211.

[0061] In some practical applications, the limiting portion 212 and the limiting matching portion 221 can be two limiting protrusions arranged correspondingly. In the case that the connecting rod 22 extends to the limit position, the two limiting protrusions abut against each other to limit the connecting rod 22.

[0062] In some practical applications, the limiting portion 212 can be a limiting slot, and the limiting matching portion 221 can be a limiting protrusion. In the case that the connecting rod 22 extends to the limit position, the limiting protrusion can be embedded in the limiting slot to limit the connecting rod 22.

[0063] In some practical applications, the limiting portion 212 can be a limiting protrusion, and the limiting matching portion 221 can be a limiting slot.

[0064] As shown in FIG. 6, in some embodiments, the driving rod 20 further comprises an angle deflection module 23. The angle deflection module 23 is arranged on the movable end, and the angle deflection module 23 is drivingly connected with the placement table 31. The control device is further electrically connected with the angle deflection module 23 to control the angle deflection module 23 to drive the placement table 31 to rotate. Figure 3 Specifically, the angle deflection module 23 can be a rotating shaft. The angle deflection module 23 is arranged on the movable end of the connecting rod 22, and the placement table 31 is installed on the movable end of the connecting rod 22 through the angle deflection module 23. In this way, the control device can control the angle deflection module 23 to drive the placement table 31 to rotate around the movable end of the connecting rod 22 to adjust the angle between the placement table 31 and the user, thereby realizing multi-angle observation and detection of the sample 33, as shown in FIG. 6.

[0065] Figure 6

[0066] Optionally, the control panel 12 further comprises a rotating button. In the initial state, the rotating button is always dark. After the user presses the rotating button, the rotating button is always on and the control panel 12 sends a rotating instruction to the control device. After the control device receives the rotating instruction, the control device controls the multi-angle deflection module 23 to drive the placement table 31 to rotate forward, backward, left or right, or to drive the placement table 31 to rotate clockwise or counterclockwise.

[0067] ​​In some embodiments, the angle deflection module 23 drives the placement table 31 to rotate at an angle greater than or equal to 30° and less than or equal to 60°.

[0068] Specifically, the angle deflection module 23 can drive the placement table 31 to rotate between 30° and 60°. For example, the angle deflection module 23 can drive the placement table 31 to rotate to 30°, 45° or 60°, which is more convenient for users to observe and detect the sample 33.

[0069] In some practical applications, the angle deflection module 23 can drive the placement table 31 to rotate to 45°. At this time, the user can control the angle deflection module 23 to drive the placement table 31 to rotate forward by 45°, rotate backward by 45°, rotate left by 45° or rotate right by 45° through the control device.

[0070] As shown in FIG. 1, Figures 1 to 6 In some embodiments, the color contrast evaluation device further comprises a fixing device 32. The fixing device 32 is detachably installed on the placement table 31; and when the fixing device 32 is installed on the placement table 31, the fixing device 32 is at least partially located on the side of the sample 33 away from the placement table 31 to fix the sample 33 on the placement table 31.

[0071] Specifically, the fixing device 32 is detachably installed on the placement table 31. After the user places the sample 33 on the placement table 31, the fixing device 32 can be installed on the placement table 31, and at this time the fixing device 32 is at least partially abutted on the sample 33 from the side of the sample 33 away from the placement table 31 to fix the sample 33 on the placement table 31. When the user needs to disassemble the sample 33, the fixing device 32 can be first disassembled from the placement table 31, and then the sample 33 is taken off from the placement table 31. In this way, the situation that the sample 33 slips off and affects the user's observation and detection when the placement table 31 moves can be avoided.

[0072] As shown in FIG. 1, Figures 1 to 6 In some embodiments, the placement table 31 is configured as a magnetic material, and the fixing device 32 is configured as a magnetic material; and the fixing device 32 is used to be adsorbed on the placement table 31 from the side of the sample 33 away from the placement table 31.

[0073] Specifically, the placement table 31 is configured as a magnetic material, and the fixing device 32 is configured as a magnetic material, for example, the placement table 31 can be configured as a material of iron, cobalt or nickel, and the fixing device 32 is configured as a permanent magnet, so that the fixing device 32 can be adsorbed to the placement table 31. In this way, after the user places the sample 33 on the placement table 31, the fixing device 32 can be adsorbed to the placement table 31 from the side of the sample 33 away from the placement table 31, so as to fix the sample 33 on the placement table 31. When the user needs to disassemble the sample 33, the fixing device 32 can be directly removed from the placement table 31, and then the sample 33 is removed from the placement table 31. In this way, it is more convenient for the user to install or disassemble the fixing device 32 on the placement table 31.

[0074] As shown in Figures 1 to 6 some embodiments, the color contrast evaluation device includes a plurality of driving rods 20 and placement tables 31; wherein the control device is electrically connected to the plurality of driving rods 20 respectively, so as to control the movement of the active end of any driving rod 20.

[0075] Specifically, the plurality of driving rods 20 and the placement tables 31 are respectively installed on the base 10, and the control device is electrically connected to the plurality of driving rods 20 respectively. In this way, the user can place a plurality of samples 33 on the plurality of placement tables 31 respectively, and then simultaneously observe and detect the plurality of samples 33.

[0076] As shown in Figure 4 optionally, the control panel 12 further includes a plurality of selection buttons, and the plurality of selection buttons correspond to the plurality of driving rods 20 respectively. In this way, after the user presses any selection button, the selection button is always on. Then the user presses the movement button again, and the control device can control the corresponding driving rod 20 to drive the placement table 31 to move.

[0077] As shown in Figure 4 optionally, the control panel 12 further includes an all selection button. After the user presses the all selection button, the all selection button is always on. Then the user presses the movement button again, and at this time the control device can simultaneously control the plurality of driving rods 20 to drive the plurality of placement tables 31 to move respectively.

[0078] The above description and drawings sufficiently illustrate embodiments of the present disclosure to enable one skilled in the art to practice them. Other embodiments can include structural and other changes. Embodiments are merely representative of possible variations. Individual components and functions are optional unless explicitly required, and the order of operations can be varied. Parts and features of some embodiments can be included or replace parts and features of other embodiments. Embodiments of the present disclosure are not limited to the structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A color contrast evaluation device for evaluating the color contrast of a sample (33), characterized in that, The color evaluation device includes: The base (10) is equipped with a control device; A drive rod (20) includes a fixed end and a movable end, the fixed end being mounted on the base (10); and, A placement platform (31) is installed at the movable end of the drive rod (20), and the placement platform (31) is used to place the sample (33); The control device is electrically connected to the drive rod (20) to control the movement of the movable end relative to the fixed end.

2. The color contrast evaluation device according to claim 1, characterized in that, The drive rod (20) includes: The support rod (21) includes a fixed end fixedly mounted to the base (10) and a first connecting end remote from the base (10); and, The connecting rod (22) includes a second connecting end and a movable end, wherein the second connecting end is movably connected to the first connecting end; The control device is used to move the connecting rod (22) relative to the support rod (21).

3. The color contrast evaluation device according to claim 2, characterized in that, The support rod (21) is provided with a hollow guide groove (211), and the second connecting end and the first connecting end of the connecting rod (22) are inserted into the guide groove (211); The connecting rod (22) can extend out of the support rod (21) along the guide groove (211) or retract into the support rod (21).

4. The color contrast evaluation device according to claim 3, characterized in that, The drive rod (20) also includes: The driving device is connected to the connecting rod (22) to drive the connecting rod (22) to move along the guide groove (211).

5. The color contrast evaluation device according to claim 3, characterized in that, A limiting part (212) is provided at a position near the first connecting end of the guide groove (211); and, A limiting fitting part (221) is provided on the connecting rod (22) near the second connecting end; When the connecting rod (22) extends to its limit position, the limiting part (212) stops the limiting mating part (221), thereby limiting the connecting rod (22).

6. The color contrast evaluation device according to claim 1, characterized in that, The drive rod (20) also includes: An angle deflection module (23) is disposed at the movable end, and the angle deflection module (23) is drivenly connected to the placement platform (31); The control device is also electrically connected to the angle deflection module (23) to control the angle deflection module (23) to drive the placement platform (31) to rotate.

7. The color contrast evaluation device according to claim 6, characterized in that, The angle deflection module (23) drives the placement platform (31) to rotate by an angle greater than or equal to 30° and less than or equal to 60°.

8. The color contrast evaluation apparatus according to any one of claims 1 to 7, characterized in that, Also includes: The fixing device (32) is detachably installed on the placement platform (31); When the fixing device (32) is installed on the placement table (31), the fixing device (32) is at least partially located on the side of the sample (33) away from the placement table (31) to fix the sample (33) to the placement table (31).

9. The color contrast evaluation device according to claim 8, characterized in that, The placement platform (31) is configured with a magnetic material, and the fixing device (32) is configured with a magnetic material; The fixing device (32) is used to attach the sample (33) to the placement platform (31) from the side away from the placement platform (31).

10. The color contrast evaluation apparatus according to any one of claims 1 to 7, characterized in that, The color contrast evaluation device includes multiple sets of the drive rods (20) and the placement platform (31); The control device is electrically connected to multiple drive rods (20) to control the movement of the movable end of any drive rod (20).

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