Ink leakage detection device

Abstract

An ink leakage detection device comprises a test board used for placing test paper, a sealing cylinder which is arranged on the test paper and is connected with a negative pressure device, a plurality of detection assemblies which are arranged on the upper surface of the sealing cylinder along the circumferential direction and are used for positioning refills, a color isolation pad and a buckle used for clamping the test paper and the color isolation pad in the color isolation pad, a clamping groove for placing the test paper and the color separation pad is formed in the buckle, the clamping groove is at least in contact with the two edges of the test paper, and the width of the clamping groove is equal to the thickness of the test paper and the color separation pad which are added together. The test paper has the beneficial effects that the color separation pad and the buckle are arranged, so that the permeation phenomenon of the test paper in the detection process can be effectively prevented, and meanwhile, the dyed test paper can be conveniently taken out.

Description

Technical Field

[0001] This utility model relates to a detection device, and more particularly to an ink leakage detection device. Background Technology

[0002] In existing technologies, ink leakage detection devices are widely used in the writing instrument manufacturing industry, particularly for detecting ink leakage in pen refills. Typical applications include rapid screening of pen refill quality on production lines and random sampling of finished products. During operation, test papers are typically stacked on a test bench, with a sealed cap from the testing component placed on top. A negative pressure environment is created using a negative pressure component to simulate ink leakage conditions. The test paper is then observed to determine if ink leakage has occurred, based on whether the ink has seeped through. This detection method is simple to operate and provides a direct visual indication of ink leakage, making it widely adopted by many manufacturers.

[0003] Chinese patent document CN22133463260U discloses an ink leakage detection device, including a test platform, a test paper placed on the test platform, a detection component placed on the test paper, and a sealing cylinder placed on the test paper. The bottom of the sealing cylinder is open, and a detection platform is fixedly provided on the upper surface of the sealing cylinder. Several positioning components are evenly arranged on the detection platform, and a negative pressure component connected to the sealing cylinder is provided on one side of the test platform.

[0004] However, existing technologies have significant drawbacks. First, the sealing cylinder is placed directly over the stacked test papers. When the ink refill leaks, the ink may seep into the lower layers of test papers, contaminating multiple sheets and rendering them unusable, resulting in resource waste. Second, the test papers are typically thin, and after staining, they are prone to slipping or tearing, making handling difficult and further reducing detection efficiency. These problems not only increase detection costs but also limit the practical application of the device. Utility Model Content

[0005] To address the shortcomings of existing technologies, this invention provides an ink leakage detection device that facilitates the extraction of dyed test paper.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an ink leakage detection device, comprising a test platform for placing test paper, a sealing cylinder connected to a negative pressure device placed on the test paper, a plurality of detection components for positioning pen refills arranged circumferentially on the upper surface of the sealing cylinder, and further comprising a color-separating pad and a buckle for securing the test paper and the color-separating pad therein, wherein the buckle is provided with a slot for placing the test paper and the color-separating pad and the slot is in contact with at least two sides of the test paper, and the width of the slot is equivalent to the combined thickness of the test paper and the color-separating pad.

[0007] The beneficial effects of this invention are as follows: By setting up a color-separating pad and a snap fastener, it can effectively prevent the test paper from seeping through during the testing process, while also facilitating the removal of the dyed test paper. The presence of the color-separating pad can prevent ink from seeping into the test platform or other components, thereby improving the accuracy of the test results. The snap fastener design not only fixes the position of the test paper and the color-separating pad, but also facilitates operators to quickly change the test paper, improving testing efficiency. As a preferred option, the snap fastener can be made of an elastic material to better adapt to test papers and color-separating pads of different thicknesses, while ensuring a tight contact between the slot and the test paper. As another preferred option, the color-separating pad can be made of a highly absorbent and impermeable material, such as a multi-layer composite fiber material, to further enhance its anti-permeability performance.

[0008] Furthermore, the buckle is L-shaped, and each set of test paper and color-separating pad is wrapped with a buckle at each of the four corners.

[0009] By designing the latch in an L-shape and wrapping it around the four corners of the test paper and the color-separating pad, the position of the test paper and the color-separating pad can be more securely fixed, preventing the test paper from shifting or deforming due to negative pressure, thus ensuring the reliability of the test results. Furthermore, this design reduces curling at the edges of the test paper, making the testing process smoother. As a preferred method, anti-slip textures can be added to the inside of the latch to enhance the friction between the latch and the test paper, further improving the stability of the fixation. Alternatively, the L-shaped structure of the latch can be manufactured using injection molding to reduce production costs and improve product consistency.

[0010] Furthermore, each detection component includes a positioning hole for positioning the pen refill. An elastic clamping member and a positioning block are respectively provided at both ends of the positioning hole. The elastic clamping member and the positioning block cooperate to fix the pen refill at the positioning hole. A vertically extending oil leakage hole is provided in the sealing cylinder corresponding to each positioning hole. The oil leakage holes are all provided with negative pressure by a negative pressure device.

[0011] This design, through a separately designed leakage hole, allows for independent positioning and inspection of each pen refill, facilitating the rapid identification of refills with leakage problems and improving the targeting and efficiency of the inspection. The combination of the elastic clamp and the positioning block can accommodate pen refills of different diameters, thus expanding the applicability of the device. As a preferred option, the elastic part of the elastic clamp can employ a spring sheet structure to provide a more stable clamping force while facilitating adjustment of the clamping force. Alternatively, the inner wall of the leakage hole can be coated with an oleophobic coating to prevent ink residue from remaining inside the hole and affecting the accuracy of subsequent inspections.

[0012] Furthermore, the sealing cylinder has a central control chamber connected to the negative pressure device, and each oil leakage hole has a sub-control channel connected to the central control chamber at the bottom of the side near the test paper. The sub-control channel is inclined upward from the end connected to the oil leakage hole toward the end connected to the central control chamber.

[0013] The upward-sloping design of the sub-control channels effectively prevents ink flowing from the oil leakage holes from entering the main control chamber, thus avoiding ink contamination of the negative pressure device or interference with the normal operation of other detection channels. This design ensures the accuracy of the detection results and the long-term stability of the device. As a preferred approach, the tilt angle of the sub-control channels can be optimized according to the viscosity and flow characteristics of the ink to achieve the best anti-backflow effect. As another preferred approach, the inner wall of the sub-control channels can be provided with tiny guide grooves to guide the ink to flow along a predetermined path, further reducing the risk of ink entering the main control chamber.

[0014] Furthermore, the elastic clamping member includes a clamping part and an elastic part for causing the clamping part to tend to move toward the positioning block. The clamping part and the positioning block are respectively provided with positioning arc surfaces, and the two positioning arc surfaces cooperate to fix the pen refill.

[0015] By incorporating locating arc surfaces on the clamping part and locating block, the outer surface of the pen refill can be better fitted, thereby improving clamping stability and accuracy. The movement tendency provided by the elastic part ensures that the clamping part always maintains a certain clamping force, achieving good fixation even with slight differences in pen refill diameter. This design simplifies operation and improves inspection efficiency. As a preferred approach, the locating arc surface can be designed as a replaceable modular structure for flexible adjustment according to different pen refill shapes. Alternatively, the elastic part can be made of silicone, which offers good elasticity while preventing damage to the pen refill surface. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0017] Figure 2 This is a partially enlarged schematic diagram of the detection component according to an embodiment of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the sealing cylinder according to an embodiment of the present utility model;

[0019] Figure 4 This is a cross-sectional view of the buckle in an embodiment of the present invention. Detailed Implementation

[0020] This utility model embodiment provides an ink leakage detection device, such as... Figure 1-4As shown, the device mainly includes a test platform 1 for placing test paper 2. A sealing cylinder 3 is placed on the test paper 2, and the sealing cylinder 3 is connected to a negative pressure device 7 through a pipe to create a negative pressure environment. To ensure that the test paper 2 does not leak and to facilitate the removal of the dyed test paper 2, a color-separating pad 4 is also provided below the test paper 2. The test paper 2 and the color-separating pad 4 are fixed together by clips 5. The clips 5 are L-shaped, and each set of test paper 2 and color-separating pad 4 is wrapped with a clip 5 at each of the four corners. The clips 5 are provided with slots 51, which are in contact with at least two sides of the test paper 2. The width of the slot is equivalent to the combined thickness of the test paper 2 and the color-separating pad 4, thereby achieving a stable fixation of the test paper 2 and the color-separating pad 4.

[0021] The upper surface of the sealing cylinder 3 is provided with a plurality of detection components 6 circumferentially. Each detection component 6 includes a positioning hole 61 for positioning the pen refill. An elastic clamping member 62 and a positioning block 63 are respectively provided at both ends of the positioning hole 61, which cooperate to fix the pen refill at the positioning hole 61. The elastic clamping member 62 includes a clamping part 621 and an elastic part 622. The elastic part 622 causes the clamping part 621 to tend to move towards the positioning block 63. Positioning arc surfaces 64 are respectively provided on the clamping part 621 and the positioning block 63, and the two positioning arc surfaces 64 cooperate to fix the pen refill. A vertically extending oil leakage hole 31 is provided inside the sealing cylinder 3 corresponding to each positioning hole 61. These oil leakage holes 31 are provided with negative pressure by a negative pressure device 7. The individually designed oil leakage holes 31 can effectively locate the leaking pen refill, making it easy to find the problematic pen refill.

[0022] A central control chamber 32 is provided in the middle of the sealing cylinder 3, and the central control chamber 32 is connected to the negative pressure device 7. Each oil leakage hole 31 has a sub-control channel 33 at its bottom near the test paper 2, and the sub-control channel 33 connects the central control chamber 32 and the oil leakage hole 31. The sub-control channel 33 is inclined upward from the end connected to the oil leakage hole 31 toward the end connected to the central control chamber 32. This design can prevent leaked ink from entering the central control chamber 32 and failing to appear on the test paper 2. In addition, in order to ensure the sealing between the sealing cylinder 3 and the test stage 1, a sealing ring (not shown in the figure) can be provided on the bottom edge of the sealing cylinder 3. The sealing ring (not shown in the figure) is fixed to the sealing cylinder 3 by adhesive or snap-fit.

[0023] The device works as follows: First, the test paper 2 is placed on the test stage 1, and a color-separating pad 4 is placed underneath it. Then, the test paper 2 and the color-separating pad 4 are fixed together by the clip 5. Next, the pen refill to be tested is inserted into the positioning hole 61 of the detection component 6. The elastic clamp 62 and the positioning block 63 cooperate to fix the pen refill. After the negative pressure device 7 is activated, the negative pressure is transmitted to the oil leakage hole 31 through the main control cavity 32. If there is an oil leakage problem with the pen refill, the ink will flow out from the oil leakage hole 31 and be absorbed onto the test paper 2. Due to the design of the sub-control channel 33, the ink will not enter the main control cavity 32, but will be directly displayed on the test paper 2. After the test is completed, the clip 5 can be easily removed, and the stained test paper 2 can be taken out for analysis.

[0024] The above embodiments are merely one preferred embodiment of the present utility model. Ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model's technical solution are all included within the protection scope of the present utility model.

Claims

1. An ink leakage detection device, comprising a test table for placing a test paper, a sealed cartridge connected with a negative pressure device is placed on the test paper, and a plurality of detection assemblies for positioning a pen core are arranged on the upper surface of the sealed cartridge in a circumferential direction, characterized in that: The application also discloses a color separation pad and a buckle for clamping the test paper and the color separation pad, wherein the buckle is provided with a clamping groove for placing the test paper and the color separation pad, and the clamping groove is in contact with at least two edges of the test paper.

2. The ink leakage detection apparatus according to claim 1, characterized by: The buckle is L-shaped, and the four corners of each group of test paper and color separation pad are wrapped with the buckle.

3. The ink leakage detection apparatus according to claim 1, characterized by: Each detection assembly comprises a positioning hole for positioning the pen core, two ends of the positioning hole are respectively provided with an elastic clamping member and a positioning block, the elastic clamping member and the positioning block are matched to fix the pen core at the positioning hole, a vertically extending oil leakage hole corresponding to each positioning hole is arranged in the sealing cylinder, and the oil leakage holes are provided with negative pressure by the negative pressure device.

4. The ink leakage detection apparatus according to claim 3, characterized by: A middle part of the sealing cylinder is provided with a total control cavity connected with the negative pressure device, a bottom of each oil leakage hole near a side of the test paper is provided with a sub-control channel connected with the total control cavity, and the sub-control channel is arranged in an inclined upward manner from one end connected with the oil leakage hole to one end connected with the total control cavity.

5. The ink leakage detection apparatus according to claim 3, characterized by: The elastic clamping member comprises a clamping part and an elastic part for enabling the clamping part to generate a movement tendency towards the positioning block, and the clamping part and the positioning block are respectively provided with positioning arc surfaces, and the two positioning arc surfaces are matched to fix the pen core.

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