An apparatus for inkjet color calibration

Abstract

The utility model relates to the technical field of jet printing discloses an instrument of jet printing color calibration, including head subassembly, fuselage subassembly and leveling assembly, head subassembly, including touch -control screen and three -color pilot lamp, touch -control screen is oblique inlay in head subassembly front surface, built -in color calibration software is provided with three -color pilot lamp below touch -control screen, is used for indicating operating condition. The utility model discloses have leveling assembly and fuselage subassembly through setting, before detection can drive the outer expansion of the gyro wheel through the outer expansion action of the '' X '' type connecting rod, the measured area is flattened actively, makes the jet printing area of cloth surface, paper, injection molding surface or glass surface etc. different material keeps the flat state of sticking before sensor contact, reduces the measurement deviation caused by surface wrinkle, ripple or local bulge, guarantees that the color difference analysis result of subsequent color calibration software output possesses higher accuracy, improves the precision and efficiency of jet printing quality control.

Description

Technical Field

[0001] This utility model relates to the field of inkjet printing technology, specifically to an instrument for inkjet printing color calibration. Background Technology

[0002] Color measurement equipment for inkjet printing, such as colorimeters, is mostly used for surface color difference calibration of products such as paper, fabric, and plastic parts. Color calibration mainly relies on sensors to read the color values ​​of the target area, and then software is used for comparison and analysis to determine whether the inkjet printing meets the design standards.

[0003] Most colorimeters currently available are handheld. When in use, the operator aligns the sensor window with the surface to be measured, and starts the detection program after the sensor window is in contact with the surface. However, if the surface of the object being measured has a certain degree of flexibility or unevenness, such as fabric, cloth, paper, label film, etc., it is easy for bulges, wrinkles, or unevenness to occur. If such surfaces cannot be fully in contact with the sensor window, it will directly affect the acquisition effect of the optical sensor, resulting in color value deviation, and thus affecting the accuracy and repeatability of the color calibration results.

[0004] Therefore, there is an urgent need for an instrument for inkjet color calibration to overcome the aforementioned technical deficiencies. Utility Model Content

[0005] The purpose of this invention is to provide an instrument for inkjet color calibration, in order to solve the problem mentioned in the background art, such as unevenness of the test area of ​​fabric, cloth surface, paper label film, etc., which requires manual leveling and leads to color value deviation.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an instrument for inkjet printing color calibration, comprising a head assembly, a body assembly, and a leveling assembly; the head assembly includes a touch screen and a three-color indicator light, the touch screen being obliquely embedded in the front surface of the head assembly and having built-in color calibration software, and a three-color indicator light being provided below the touch screen to indicate the operating status; the body assembly includes a fixing plate and a positioning motor, the fixing plate being fixed to the inner wall of the body, the positioning motor being fixedly connected to the top of the fixing plate, the output shaft of the positioning motor being fixedly connected to a central rod, and a detection sensor being fixedly mounted at the bottom of the central rod; the leveling assembly includes four sets of wheel grooves formed on the lower edge of the body.

[0007] As a further technical solution of this utility model, a motor heat dissipation groove is provided in the housing between the head assembly and the body assembly to ensure the daily heat dissipation of the positioning motor.

[0008] As a further technical solution of this utility model, a detection button is provided on the outer wall of the body at the height of the positioning motor for starting and stopping the positioning motor.

[0009] As a further technical solution of this utility model, an external thread is machined on the upper part of the outer wall of the central rod, and a threaded sleeve is screwed onto the outside of the external thread.

[0010] As a further technical solution of this utility model, the leveling assembly also includes an upper hinge seat and a lower hinge seat. The upper hinge seat is rotatably sleeved on the outside of the threaded sleeve, and the lower hinge seat is rotatably sleeved on the lower part of the center rod. The upper hinge seat rotates horizontally relative to the threaded sleeve, and the lower hinge seat rotates horizontally relative to the center rod.

[0011] As a further technical solution of this utility model, the upper hinge seat is hinged with a first hinge rod in four directions, and the other end of the first hinge rod is hinged to the movable piece. The upper part of the movable piece is hinged to the lower hinge seat with a second hinge rod in four directions. The second hinge rod and the first hinge rod in the same direction are hinged to each other to form an "X" movable structure.

[0012] As a further technical solution of this utility model, the bottom end of each movable piece is injection molded with a wheel seat, and the bottom end of each wheel seat is rotatably connected with a roller, which moves in four sets of wheel grooves respectively.

[0013] As a further technical solution of this utility model, the movable piece is a concave arc-shaped plate that fits against the inner wall of the machine body in four directions. Multiple sets of pads are provided on the inner wall of the machine body, and each set of movable pieces corresponds to a pad.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: by setting up a leveling component and a machine body component, the roller can be driven to expand outward through the outward movement of the "X"-shaped connecting rod before detection, actively leveling the area to be measured. This ensures that the printing areas of different materials such as cloth, paper, injection molded surface or glass surface remain flat and in contact with the sensor before contact, improving the sensor's contact accuracy, reducing measurement deviations caused by surface wrinkles, ripples or local bulges, ensuring that the color difference analysis results output by the subsequent color calibration software have high accuracy, and improving the accuracy and efficiency of printing quality control. Attached Figure Description

[0015] Figure 1 This is a side view of the structure of this utility model; Figure 2 This is a front view cross-sectional structural diagram of the present invention; Figure 3 This is a front view structural diagram of the central rod of this utility model; Figure 4 This is a bottom view schematic diagram of the detection sensor structure of this utility model; Figure 5 This is a front view schematic diagram of the roller structure of this utility model; Figure 6 This is a bottom view of the wheel groove structure of this utility model.

[0016] In the diagram: 1. Head assembly; 2. Body assembly; 3. Leveling assembly; 101. Touch screen; 102. Three-color indicator light; 103. Motor heat dissipation slot; 201. Detection button; 202. Positioning motor; 203. Fixing plate; 204. Center rod; 205. External thread; 206. Washer; 207. Detection sensor; 208. Threaded sleeve; 301. Wheel groove; 302. Roller; 303. Wheel seat; 304. First hinge rod; 305. Second hinge rod; 306. Moving plate; 307. Upper hinge seat; 308. Lower hinge seat. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-6 This utility model provides an embodiment of an instrument for inkjet printing color calibration, comprising a head assembly 1, a body assembly 2, and a leveling assembly 3. The body assembly 2 includes a fixing plate 203 and a positioning motor 202. The fixing plate 203 is fixed to the inner wall of the body, and the positioning motor 202 is fixedly connected to the top of the fixing plate 203. A central rod 204 is fixedly connected to the output shaft of the positioning motor 202, and a detection sensor 207 is fixedly mounted at the bottom of the central rod 204. The leveling assembly 3 includes four sets of wheel grooves 301 formed on the lower edge of the body. A motor heat dissipation groove 103 is provided at the housing between the head assembly 1 and the body assembly 2 to ensure daily heat dissipation of the positioning motor 202. A detection button 201 is provided on the outer wall of the body at the height of the positioning motor 202 for starting and stopping the positioning motor 202. An external thread 205 is machined on the upper part of the outer wall of the central rod 204, and a threaded sleeve 208 is screwed onto the outside of the external thread 205. Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the operator enters the color calibration interface through the touch screen 101 and presses the detection button 201 located on the side of the machine body as prompted by the screen. The detection button 201 triggers the positioning motor 202 to act. After the positioning motor 202 starts, it drives its output shaft to drive the center rod 204 to rotate. The outer wall of the center rod 204 is provided with an external thread 205. The external thread 205 cooperates with the threaded sleeve 208, so that the output force is further transmitted to the threaded sleeve 208 during the downward rotation. The threaded sleeve 208 is fitted with an upper hinge seat 307, and the lower part of the center rod 204 is fitted with a lower hinge seat 308. When the center rod 204 continues to press down, the upper hinge seat 307 moves down accordingly, while the lower hinge seat 308 remains stationary due to axial restriction. This generates relative displacement, triggering the "X"-shaped connecting rod structure installed between the upper and lower hinge seats to change angle. That is, the angle between the first hinge rod 304 and the second hinge rod 305 gradually expands, thereby driving the moving piece 306 fixed at the intersection to unfold radially outward.

[0019] Furthermore, the positioning motor 202, model MGPM16-25Z, is a linear slide motor with a built-in stroke sensor, which can provide stable, low-vibration push-pull action, facilitating the positioning control of precision structures. Furthermore, to ensure the thermal stability of the positioning motor 202 during long-term operation, a motor heat dissipation slot 103 is provided between the head assembly 1 and the body assembly 2. This can keep the surface temperature of the motor within a safe range during high-frequency start-stop operations, preventing overheating from causing detection errors or structural aging.

[0020] Furthermore, an external thread 205 and a threaded sleeve 208 are provided above the center rod 204 to ensure that the leveling mechanism operates smoothly under the drive of the motor and has a self-locking characteristic to prevent slippage after operation, which would cause the position of the detection sensor 207 to shift.

[0021] The leveling assembly 3 also includes an upper hinge seat 307 and a lower hinge seat 308. The upper hinge seat 307 is rotatably sleeved on the outside of the threaded sleeve 208, and the lower hinge seat 308 is rotatably sleeved on the lower part of the center rod 204. The upper hinge seat 307 rotates horizontally relative to the threaded sleeve 208, and the lower hinge seat 308 rotates horizontally relative to the center rod 204. The upper hinge seat 307 is hinged to a first hinge rod 304 in four directions on its outside. The other end of each first hinge rod 304 is hinged to a movable piece 306. The upper part of the movable piece 306 is connected to the lower hinge seat 308. The machine body is hinged with four-way second hinge rods 305. The second hinge rods 305 and the first hinge rods 304 in the same direction are hinged to each other to form an "X" movable structure. The bottom of each movable piece 306 is injection molded with a wheel seat 303. The bottom of each wheel seat 303 is rotatably connected with a roller 302. The rollers 302 move in four sets of wheel grooves 301 respectively. The movable piece 306 is a concave arc plate that fits against the inner wall of the machine body in four directions. Multiple sets of pads 206 are set on the inner wall of the machine body. Each set of movable pieces 306 corresponds to a pad 206. Specifically, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, each set of moving pieces 306 has an integrally injection-molded wheel seat 303 at its bottom. The lower end of the wheel seat 303 is connected to the roller 302 through a rotating shaft structure. The roller 302 moves inside the wheel groove 301. While the moving piece 306 expands radially, the roller 302 rolls outward along the edge of the wheel groove 301. In this way, the undulating surface of the cloth, paper, etc. is compacted or spread, and the preliminary leveling treatment of the measurement area is achieved. After the test is completed, the test button 201 is pressed again, the positioning motor 202 reverses, the output shaft drives the center rod 204 back to its original position, and the "X" shaped structure automatically closes. The roller 302 retracts into the wheel groove 301, and the leveling component 3 is retracted to the initial state. The instrument enters the standby or the test stage of the next set of color points.

[0022] Furthermore, the movable piece 306 has an arc-shaped concave plate structure that can fit against the inner wall of the body component 2 in four directions. Multiple sets of pads 206 are also provided at its outer edge. During the extreme unfolding of the leveling component 3, the multiple sets of pads 206 come into contact with the movable piece 306 to avoid structural impact and wear.

[0023] Furthermore, the roller 302 moves within the limited range of the wheel groove 301, restricting the rotation of the upper hinge seat 307 and the lower hinge seat 308 relative to the center rod 204, thus preventing the detection sensor 207 from shifting laterally after being positioned.

[0024] The head assembly 1 includes a touch screen 101 and a three-color indicator light 102. The touch screen 101 is obliquely embedded in the front surface of the head assembly 1 and has built-in color calibration software. The three-color indicator light 102 is located below the touch screen 101 to indicate the operating status. Specifically, such as Figure 1 and Figure 2 As shown, the detection sensor 207 fixed at the bottom of the central rod 204 is a high-precision reflective color sensing unit. It is used with the calibration software built into the touch screen 101 to automatically read color values ​​and analyze deviations. The calibration results are displayed in real time through the three-color indicator light 102, where green indicates that it is qualified, yellow indicates that it needs to be adjusted, and red indicates that it needs to be reprinted.

[0025] Working principle: First, the operator enters the calibration interface through the touch screen 101 and presses the detection button 201 according to the screen prompts. The detection button 201 controls the positioning motor 202 to start. After the positioning motor 202 starts, its output shaft drives the center rod 204 to rotate. The outer wall of the center rod 204 is provided with an external thread 205, which is screwed into the threaded sleeve 208. While rotating axially, it generates a downward displacement, causing the leveling component 3 to unfold, thereby driving the moving piece 306 to expand radially outward. During the expansion process, the roller 302 rolls outward along the wheel groove 301, realizing the pressing and leveling of the printed surface to be tested, such as paper, fabric, etc., making the test area flat and wrinkle-free, creating a stable benchmark for subsequent color accuracy testing. The detection sensor 207 is a reflective high-precision color sensor. By illuminating the test surface with a built-in white LED, the target surface of different colors has different reflectivity for different wavelengths of light. The sensor receives the reflected light and converts it into RGB or Lab color space. The electrical signal is converted by an A / D converter and then processed and analyzed by the calibration software embedded in the touch screen 101. The software stores a standard color value database. The system compares the measured value with the standard value and outputs the ΔE color difference value result to judge the printing quality. After the color detection is completed, the calibration result is presented intuitively by the three-color indicator light 102: green indicates that the color is qualified and no adjustment is needed; yellow indicates a slight deviation and it is recommended to correct the printing parameters; red indicates that the color difference exceeds the limit and reprinting is required to ensure that the product color consistency meets the process requirements. After the detection is completed, the operator presses the detection button 201 again, the positioning motor 202 reverses, the center rod 204 moves up, driving the leveling component 3 to automatically retract, the "X" structure closes, the roller 302 retracts into the wheel groove 301, the moving piece 306 retracts to the inner wall of the machine body component 2, the detection sensor 207 detaches from the measured surface and returns to the initial state, the instrument returns to standby, and prepares for the next round of color measurement operation.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An instrument for inkjet printing color calibration, comprising a printhead assembly (1), a body assembly (2), and a leveling assembly (3), characterized in that: The head assembly (1) includes a touch screen (101) and a three-color indicator light (102). The touch screen (101) is obliquely embedded on the front surface of the head assembly (1) and has built-in color calibration software. The three-color indicator light (102) is provided below the touch screen (101) to indicate the operating status. The body assembly (2) includes a fixing plate (203) and a positioning motor (202). The fixing plate (203) is fixed to the inner wall of the body. The positioning motor (202) is fixedly connected to the top of the fixing plate (203). The output shaft of the positioning motor (202) is fixedly connected to a center rod (204). A detection sensor (207) is fixedly mounted at the bottom of the center rod (204). The leveling component (3) includes four sets of wheel grooves (301) formed on the lower edge of the fuselage.

2. An apparatus for inkjet color calibration as claimed in claim 1, characterized in that: A motor heat dissipation slot (103) is provided at the housing between the head assembly (1) and the body assembly (2) to ensure the daily heat dissipation of the positioning motor (202).

3. An apparatus for inkjet color calibration as defined in claim 1, wherein: A detection button (201) is provided on the outer wall of the body at the height of the positioning motor (202) for starting and stopping the positioning motor (202).

4. An apparatus for inkjet color calibration as defined in claim 1, wherein: The outer wall of the central rod (204) is machined with an external thread (205), and a threaded sleeve (208) is screwed onto the outside of the external thread (205).

5. An apparatus for inkjet color calibration as defined in claim 1, wherein: The leveling assembly (3) further includes an upper hinge (307) and a lower hinge (308). The upper hinge (307) is rotatably sleeved on the outside of the threaded sleeve (208), and the lower hinge (308) is rotatably sleeved on the lower part of the center rod (204). The upper hinge (307) rotates horizontally relative to the threaded sleeve (208), and the lower hinge (308) rotates horizontally relative to the center rod (204).

6. The inkjet printing color calibration instrument according to claim 5, characterized in that: The upper hinge seat (307) is hinged to a first hinge rod (304) in four directions. The other end of the first hinge rod (304) is hinged to the movable piece (306). The upper part of the movable piece (306) is hinged to the lower hinge seat (308) in four directions. The second hinge rod (305) in the same direction and the first hinge rod (304) are hinged to each other to form an "X" movable structure.

7. An apparatus for inkjet color calibration according to claim 6, characterized in that: The bottom of each movable piece (306) is injection molded with a wheel seat (303), and the bottom of each wheel seat (303) is rotatably connected with a roller (302). The roller (302) moves in four sets of wheel grooves (301).

8. An apparatus for inkjet color calibration as defined in claim 6, wherein: The movable piece (306) is a concave arc-shaped plate that fits against the inner wall of the machine body in four directions. Multiple sets of pads (206) are provided on the inner wall of the machine body, and each set of movable pieces (306) corresponds to a pad (206).

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