An automatic sampling device

Abstract

The utility model discloses an automatic sampling device, the utility model provides an automatic sampling device, including die -cut component, detection component and paper feed platform, detection component with the paper feed platform is located in the feed side of die -cut component, the paper feed platform with the feed side of die -cut component is placed on the same horizontal plane, when sampling, paper is sent into through the paper feed platform, and the position of paper is detected through detection component when paper feeding, and then the sample is cut out by die -cut component and is exported, in the paper feeding process, detection component can accurately detect the position of paper, and once finding that paper exists skew and other position deviation conditions, the operator can adjust the position of paper, subsequently, paper enters die -cut component, and the sample is accurately cut out by die -cut component and is exported, the paper feed platform can ensure the stability of paper in the pushing process, and detection component effectively guarantees the precision of sample die -cuting, thereby realizes efficient, accurate automatic sampling function, and greatly improves the quality and efficiency of sampling work.

Description

Technical Field

[0001] This utility model relates to the field of printing and packaging technology, and in particular to an automatic sampling device. Background Technology

[0002] During the printing process, uneven ink transfer can easily occur due to imbalanced ink roller pressure or improper ink viscosity control. Deviations in printing pressure can lead to dot deformation and misregistration, causing color overlap and discrepancies. Both can result in varying shades or tones of the same printed product across different areas, resulting in uneven color distribution. For brand owners, uneven color distribution directly impacts the product's visual appeal, reducing its appearance quality and damaging the brand image. For manufacturers, this defect increases the product's reject rate, and frequent downtime for parameter adjustments disrupts production cycles, leading to customer returns and claims, wasting materials and incurring rework costs. Therefore, ensuring color consistency during printing is crucial for minimizing uneven color distribution. Frequent spot checks during printing production allow for real-time monitoring of color consistency. By promptly identifying issues like uneven ink application and misregistration, equipment parameters or process conditions can be quickly adjusted to prevent the accumulation and spread of uneven color distribution, reducing batch quality defects. Furthermore, data feedback optimizes production stability and improves overall color uniformity.

[0003] For printed samples used for color matching in printing, standardized cutting processing must be carried out according to the printing quality inspection specifications. Targeted sampling and testing should be conducted on key areas such as the gripper edge, the middle section, and the end of the print. Currently, color matching in printing mainly relies on manual sampling. The deficiencies of paper cutters in terms of accuracy, efficiency, and safety can directly lead to distorted color matching detection, insufficient sampling coverage, and increased risk of workplace injuries.

[0004] Therefore, in order to effectively reduce the problems of low accuracy, poor repeatability, low efficiency and prominent safety hazards in the process of color sampling, there is an urgent need to provide a convenient and efficient automatic sampling device for printed samples. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of this utility model is to provide an automatic sampling device that can automatically die-cut samples and detect the paper position when feeding paper to ensure die-cutting accuracy.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] An automatic sampling device includes a die-cutting assembly, a detection assembly, and a paper feeding table. The detection assembly and the paper feeding table are disposed on the feeding side of the die-cutting assembly, and the paper feeding table and the feeding side of the die-cutting assembly are placed on the same horizontal plane. When sampling a sample sheet, the paper is fed in through the paper feeding table. During the paper feeding, the position of the paper is detected by the detection assembly, and then the die-cutting assembly cuts out the sample sheet and outputs it.

[0008] In the automatic sampling device, the die-cutting assembly includes an upper die-cutting table, a lower die-cutting table, an air pump assembly, a column, and a sliding sleeve. One end of the column is connected to the air pump assembly, and the other end of the column is connected to the lower die-cutting table. The sliding sleeve is fitted onto the column. The upper die-cutting table is connected to the sliding sleeve, and the air pump assembly is connected to the upper die-cutting table.

[0009] The automatic sampling device further includes a pressure mold, a first spring, and a support rod. The pressure mold is located at the bottom of the upper die-cutting table. One end of the support rod is connected to the pressure mold, and the other end of the support rod is movably connected to the upper die-cutting table. The first spring is sleeved on the support rod.

[0010] In the automatic sampling device, the detection component includes a laser probe, a first arm, and a second arm. The first arm is connected to one side of the air pump assembly, and the second arm is slidably connected to the first arm. The laser probe is mounted on the second arm.

[0011] In the automatic sampling device, the detection component further includes a support rod and a universal joint. One end of the support rod is slidably connected to the second support arm, and the other end of the support rod is connected to the universal joint. The laser probe is disposed on the universal joint.

[0012] In the automatic sampling device, limit blocks are provided on both sides of the paper feeding table, and the limit blocks have sliding groove holes with scales.

[0013] In the automatic sampling device, the corners of the die-cutting holes of the lower die-cutting table are all provided with rounded corners, the radius of which is 0.1-0.5mm, and the die-cutting part of the upper die-cutting table is adapted to the die-cutting holes.

[0014] In the automatic sampling device, a discharge platform is provided at the bottom of the lower die-cutting table. The discharge platform is located below the die-cutting hole and is set at a downward slope.

[0015] In the aforementioned automatic sampling device, the laser probe emits a cross-shaped beam of light.

[0016] In the automatic sampling device, a second spring is sleeved on the column, one end of the second spring abuts against the lower die-cutting table, and the other end of the second spring abuts against the upper die-cutting table.

[0017] Compared to existing technologies, the automatic sampling device provided by this invention uses a detection component to monitor the paper's position during the paper feeding process. If any positional deviation, such as skewing, is detected, the operator can adjust the paper's position. Subsequently, the paper enters the die-cutting component, which cuts out a sample and outputs it. Through this automatic sampling device, the paper feeding table ensures the stability of the paper during the feeding process, while the detection component effectively guarantees the accuracy of the sample die-cutting. This achieves a highly efficient and accurate automatic sampling function, greatly improving the quality and efficiency of the sampling work. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the automatic sampling device provided by this utility model.

[0019] Figure 2 This is a schematic diagram of the die-cutting component in the automatic sampling device provided by this utility model.

[0020] Figure 3 An exploded view of the die-cutting component in the automatic sampling device provided by this utility model.

[0021] Figure 4 This is a schematic diagram of the limiting block in the automatic sampling device provided by this utility model.

[0022] Figure 5 This is a schematic diagram of a full-page printing sample.

[0023] Figure 6 A schematic diagram of a sample obtained by die-cutting using the automatic sampling device provided by this utility model.

[0024] Figure 7 for Figure 6 The sample image shown is a schematic diagram illustrating the comparison of the tongue position aligning with the swallowtail position when folded.

[0025] Attached image annotations:

[0026] 1. Die-cutting assembly; 11. Upper die-cutting table; 12. Lower die-cutting table; 13. Air pump assembly; 131. Air pump; 132. Mounting plate; 133. Piston connecting rod; 14. Column; 15. Sliding sleeve; 16. Second spring; 17. Press mold; 171. Die hole; 18. First spring; 19. Support rod; 2. Detection assembly; 21. Laser probe; 22. First support arm; 23. Second support arm; 24. Support rod; 3. Paper feeding table; 31. Limit block; 32. Slide hole; 33. Scale; 4. Discharge table; 51. Tongue; 52. Dovetail Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0028] It should be noted that when a component is referred to as being "mounted on," "fixed to," or "set on" another component, it can be directly on the other component or may have an intervening component present. When a component is referred to as being "connected to" another component, it can be directly connected to the other component or may have an intervening component present.

[0029] It should also be noted that the directional terms such as left, right, up, and down in the embodiments of this utility model are only relative concepts or are based on the normal use state of the product, and should not be considered as restrictive.

[0030] Please see Figure 1 , Figure 2 and Figure 3 The automatic sampling device provided by this utility model includes a die-cutting assembly 1, a detection assembly 2, and a paper feeding table 3. The detection assembly 2 and the paper feeding table 3 are disposed on the feeding side of the die-cutting assembly 1, and the paper feeding table 3 is placed on the same horizontal plane as the feeding side of the die-cutting assembly 1. During the sampling operation, the paper is first smoothly fed into the automatic sampling device through the paper feeding table 3. During the paper feeding process, the detection assembly 2 detects the position of the paper. Once it detects any positional deviation such as skewing, it can issue an alarm in real time to prompt the operator to adjust the position of the paper. After the paper position is accurately detected, the paper enters the die-cutting assembly 1, which accurately cuts out a sample (e.g., ...). Figure 6 (As shown) and outputs it. Through the automatic sampling device, the paper feeding table 3 can ensure the stability of the paper during the feeding process, while the detection component 2 effectively ensures the accuracy of sample die-cutting, thereby realizing efficient and accurate automatic sampling function, which greatly improves the quality and efficiency of sampling work.

[0031] The die-cutting assembly 1 includes an upper die-cutting table 11, a lower die-cutting table 12, an air pump assembly 13, a column 14, and a sliding sleeve 15. One end of the column 14 is connected to the air pump assembly 13 (such as the mounting plate of the air pump assembly 13), and the other end of the column 14 is connected to the lower die-cutting table 12. The sliding sleeve 15 is fitted onto the column 14, and the upper die-cutting table 11 is connected to the sliding sleeve 15. The movable end of the air pump assembly 13 is connected to the upper die-cutting table 11. During the die-cutting process, the paper is fed onto the lower die-cutting table 12 after passing through the paper feed table 3 and being detected by the detection assembly 2. The air pump assembly 13 drives the upper die-cutting table 11 to press down. When the upper die-cutting table 11 contacts the lower die-cutting table 12, the sample is accurately die-cut. The cooperation between the sliding sleeve 15 and the column 14 makes the upper die-cutting table 11 move more smoothly when pressing down or moving up, without any jamming. Moreover, no manual intervention is required during die-cutting, avoiding the safety hazards associated with manual die-cutting.

[0032] Furthermore, a second spring 16 is fitted onto the column 14. One end of the second spring 16 abuts against the lower die-cutting table 12, and the other end abuts against the upper die-cutting table 11. When the upper die-cutting table 11 is pressed down under the drive of the air pump assembly 13, the second spring 16 contracts accordingly, storing elastic potential energy. When the air pump 131 is turned off, the second spring 16, with its strong elastic force, quickly pushes the upper die-cutting table 11 back to its original position, preparing for the next die-cutting operation. This not only ensures the accuracy and stability of the die-cutting action but also improves the die-cutting efficiency, significantly enhancing the performance of the entire automatic sampling device.

[0033] Please continue reading. Figure 1 , Figure 2 and Figure 3 The air pump assembly 13 includes at least one air pump 131 and a mounting plate 132. The air pump 131 is firmly fixed to the mounting plate 132, and its piston connecting rod 133 is fixedly connected to the upper die-cutting table 11. The extension and retraction of the piston connecting rod 133 allows for precise control of the raising and lowering of the upper die-cutting table 11. Given that this part is a well-known and mature technology in the industry, it will not be elaborated upon further here.

[0034] The automatic sampling device further includes a pressure mold 17, a first spring 18, and a support rod 19. The pressure mold 17 is disposed at the bottom of the upper die-cutting table 11. One end of the support rod 19 is connected to the pressure mold 17, and the other end of the support rod 19 is movably connected to the upper die-cutting table 11. The first spring 18 is sleeved on the support rod 19. The pressure mold 17 has a die hole 171 through which the upper die-cutting table 11 passes.

[0035] When the upper die-cutting table 11 presses down, the pressure die 17 first abuts against the lower die-cutting table 12, thereby pressing down the paper and preventing deformation or displacement of the paper during the die-cutting process, effectively ensuring die-cutting accuracy. Furthermore, as the upper die-cutting table 11 presses down, the greater the compression of the first spring 18, the greater the force applied to the pressure die 17, thus more firmly pressing down the paper. When the upper die-cutting table 11 returns to its original position, the spring force of the first spring 18 is sufficient to achieve the reset, eliminating the need for additional drive components and simplifying the overall structure.

[0036] The support rod 19 can be either a telescopic rod or a non-telescopic rod. When the support rod 19 is a telescopic rod, it will retract accordingly during the descent of the die 17; and it will extend when the die 17 returns to its original position. If the support rod 19 is a non-telescopic rod, its other end is inserted into the connecting hole of the upper die-cutting table 11, and a limiter (not shown in the figure) is provided at that end to prevent the support rod 19 from falling off the upper die-cutting table 11, thereby ensuring the stability of the connection between the die 17 and the upper die-cutting table 11.

[0037] Preferably, the corners of the die-cutting holes of the lower die-cutting table 12 are all provided with rounded corners, the radius of which is 0.1-0.5mm, and the die-cutting part of the upper die-cutting table 11 is adapted to the die-cutting holes. The rounded corners can reduce stress concentration in the die-cutting holes and improve the durability of the lower die-cutting table 12. During punching, the rounded corners allow the paper to separate more smoothly at inner corners or complex shapes, avoiding incomplete cuts or burrs, and can also slightly reduce the tonnage required to completely cut through the material. In this invention, the radius of the rounded corners is preferably 0.2-0.3mm, which is more conducive to the smooth separation of the sample and waste material during punching, avoiding incomplete cuts or burrs.

[0038] The bottom of the lower die-cutting table 12 is provided with a discharge platform 4, which is located below the die-cutting opening. This allows the sample cut by the upper die-cutting table 11 and the lower die-cutting table 12 to fall smoothly onto the discharge platform 4. Moreover, the discharge platform 4 is set at a downward slope, which allows the sample to slide out automatically. This avoids the operator having to reach under the lower die-cutting table 12 to find the sample, greatly improving the safety and convenience of the sampling operation, and also enhancing the user experience of the entire automatic sampling device.

[0039] Preferably, an air blowing component (not shown in the figure) is also provided at the lower die-cutting table. After the upper die-cutting table 11 finishes die-cutting, the sample is blown onto the discharge table 4 by the air blowing component to complete the separation of machine and material, so that the sample can slide out from the discharge table 4 more quickly. Since the air blowing component is existing technology, it will not be described in detail here.

[0040] Please continue reading. Figure 1The detection component 2 includes a laser probe 21, a first arm 22, and a second arm 23. The first arm 22 is connected to one side of the air pump component 13 (such as one side of the mounting plate 132), and the second arm 23 is slidably connected to the first arm 22. The laser probe 21 is slidably mounted on the second arm 23. Through the cooperation of the first arm 22 and the second arm 23, the laser probe 21 can move laterally and longitudinally, thereby flexibly adjusting the position of the laser probe 21 according to the specific position of the pattern on the paper to accurately align with the cutting line on the sample. Specifically, the first arm 22 is fixedly connected to the mounting plate 132, so that the detection component 2 does not rise or fall when the air pump 131 extends or retracts, which is more conducive to detecting the position of the paper.

[0041] Furthermore, the detection component 2 also includes a support rod 24 and a universal joint (not shown in the figure). One end of the support rod 24 is slidably connected to the second support arm 23, and the other end of the support rod 24 is connected to the universal joint. The laser probe 21 is mounted on the universal joint. With the multi-directional rotation function of the universal joint, the laser probe 21 can flexibly adjust its angle according to actual detection needs to meet the detection requirements of different positions.

[0042] Furthermore, the support rod 24 can be designed as a telescopic rod, or it can slide up and down on the second support arm 23. In this way, the laser probe 21 can be adjusted in height to adapt to the inspection needs of sample patterns of different sizes. For example, for larger patterns, the laser probe 21 can be raised to more accurately align with the cutting line; for smaller patterns, the laser probe 21 can be lowered to improve inspection accuracy.

[0043] Through the coordinated action of the first arm 22, the second arm 23, the support rod 24, and the universal head, the laser probe 21 can achieve omnidirectional position adjustment. It can easily handle movements in the horizontal, vertical, and vertical directions, as well as flexible changes in angle. This allows the detection component 2 to meet the detection needs of samples in various positions and sizes, greatly improving the flexibility and applicability of the detection process and providing strong support for the efficient and accurate die-cutting of the automatic sampling device.

[0044] Specifically, the laser probe 21 emits a cross-shaped beam of light that can precisely align with the cutting line. During the die-cutting process, aligning the cross-shaped beam emitted by the laser probe 21 with the cutting line ensures accurate die-cutting of the sample. This design not only improves die-cutting accuracy but also reduces the scrap rate caused by positional deviations, thereby enhancing the performance and reliability of the entire automatic sampling device.

[0045] Please see Figure 1 and Figure 4The paper feeding table 3 has limit blocks 31 on both sides, each limit block 31 having a sliding groove 32 with a scale 33. Before feeding the paper, the operator can flexibly adjust the relative width of the limit blocks 31 on both sides according to the specific width of the paper. The limit blocks 31 ensure that the paper is fed smoothly and steadily into the lower die-cutting table 12, avoiding instability such as shaking or deviation during the paper feeding process.

[0046] Furthermore, by carefully comparing the scale 33, the operator can accurately ensure that the limit blocks 31 on both sides are in the same position. In this way, it is like laying a straight "track" for the paper, so that it will not shift to one side during the paper feeding process, thus providing accurate paper positioning for the subsequent die-cutting process. This effectively ensures the efficient and stable operation of the entire automatic sampling device, making every sampling accurate and error-free.

[0047] The process of die-cutting and inspecting samples using an automatic sampling device may include:

[0048] Step 1: Randomly select a full-page sample for printing (e.g., Figure 5 As shown), refer to the cutting line (such as...). Figure 5 The dashed line along the Y-axis cuts the entire sample into multiple single-sheet samples, such as... Figure 5 The printed full-page sample is cut into three single-sheet samples by a paper cutter. These can be cut manually or by an automatic cutter. Since this is not a protected point of this utility model, it will not be described in detail here.

[0049] Step 2: Send the cut sample into the automatic sampling device to take small samples ( Figure 5 Each single-sheet sample contains 6 smaller samples. Figure 5 (The area to be die-cut is indicated by a dashed line in the image). The resulting small die-cut samples are shown below. Figure 6 As shown;

[0050] Step 3: Place the cut small sample into the creasing device to press out the creasing line. After pressing out the creasing line, fold the small sample in half along the creasing line. Since the creasing process is existing technology, it will not be described in detail here.

[0051] Step 4: Fold the small sample sheet along the crease line, aligning the swallowtail 52 with the tongue 51, as shown. Figure 7 As shown;

[0052] Step 5: Combine visual evaluation or colorimeter evaluation to determine whether there is a color difference between the swallowtail 52 and the tongue 51 of the sample, and then determine whether the printing process needs to be adjusted based on the evaluation results.

[0053] In summary, the automatic sampling device provided by this utility model includes a die-cutting component, a detection component, and a paper feeding table. The detection component and the paper feeding table are located on the feeding side of the die-cutting component, and the paper feeding table and the feeding side of the die-cutting component are placed on the same horizontal plane. During the sampling operation, the paper feeding table achieves precise positioning and stable feeding of the paper. The laser probe of the detection component can adjust its position in all directions and accurately align the cutting line with the cross-shaped light beam to ensure accurate die-cutting position. The die-cutting component's pressing mold design effectively avoids paper deformation or displacement during die-cutting and simplifies the structure. The rounded corner design of the lower die-cutting table improves durability and optimizes the die-cutting effect. This device improves sampling efficiency and quality while ensuring operational safety, and has high practical value and market competitiveness.

[0054] In addition, the automatic sampling device is characterized by its simple structure and easy operation.

[0055] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of the appended claims of this utility model.

Claims

1. An automatic sampling device, characterized in that, It includes a die-cutting assembly, a detection assembly, and a paper feeding table. The detection assembly and the paper feeding table are located on the feeding side of the die-cutting assembly, and the paper feeding table and the feeding side of the die-cutting assembly are placed on the same horizontal plane. When taking a sample sheet, the paper is fed in through the paper feeding table. During the paper feeding, the position of the paper is detected by the detection assembly, and then the die-cutting assembly cuts out the sample sheet and outputs it.

2. The automatic sampling device according to claim 1, characterized in that, The die-cutting assembly includes an upper die-cutting table, a lower die-cutting table, an air pump assembly, a column, and a sliding sleeve. One end of the column is connected to the air pump assembly, and the other end of the column is connected to the lower die-cutting table. The sliding sleeve is fitted onto the column. The upper die-cutting table is connected to the sliding sleeve, and the air pump assembly is connected to the upper die-cutting table.

3. The automatic sampling device according to claim 2, characterized in that, It also includes a pressure mold, a first spring, and a support rod. The pressure mold is located at the bottom of the upper die-cutting table. One end of the support rod is connected to the pressure mold, and the other end of the support rod is movably connected to the upper die-cutting table. The first spring is sleeved on the support rod.

4. The automatic sampling device according to claim 1, characterized in that, The detection assembly includes a laser probe, a first arm, and a second arm. The first arm is connected to one side of the air pump assembly, and the second arm is slidably connected to the first arm. The laser probe is mounted on the second arm.

5. The automatic sampling device according to claim 4, characterized in that, The detection assembly also includes a support rod and a universal joint. One end of the support rod is slidably connected to the second support arm, and the other end of the support rod is connected to the universal joint. The laser probe is mounted on the universal joint.

6. The automatic sampling device according to claim 1, characterized in that, Limiting blocks are provided on both sides of the paper feeding table. The limiting blocks have sliding groove holes with scales.

7. The automatic sampling device according to claim 2, characterized in that, The corners of the die-cutting holes on the lower die-cutting table are all provided with rounded corners, the radius of which is 0.1-0.5mm. The die-cutting part of the upper die-cutting table is adapted to the die-cutting holes.

8. The automatic sampling device according to claim 7, characterized in that, The bottom of the lower die-cutting table is provided with an ejector plate, which is located below the die-cutting hole and is inclined downwards.

9. The automatic sampling device according to claim 4, characterized in that, The laser probe emits cross-shaped rays.

10. The automatic sampling device according to claim 2, characterized in that, A second spring is fitted on the column, with one end of the second spring abutting against the lower die-cutting table and the other end of the second spring abutting against the upper die-cutting table.

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