Sample cutting device for corrugated board

Abstract

The application discloses a sample cutting device for corrugated board, which comprises a base, an adjusting module, a calibration module and a cutting module. The adjusting module is located outside the sample plate accommodating space of the base and is provided with two groups of clamping parts with a preset included angle. The calibration module is located outside the adjusting module and is one-to-one corresponding to the two groups of clamping parts. The cutting module is provided with a cutting part. When the first group of calibration parts performs calibration work, the first group of clamping parts is in a avoiding position, and the second group of clamping parts is in a clamping position. When the second group of calibration parts performs calibration work, the second group of clamping parts is in an avoiding position, and the first group of clamping parts is in a clamping position. The application at least solves the problems of insufficient mechanical positioning accuracy of a sampling machine, lack of corrugated direction detection function, dependence on simple limiting structure and visual error caused by manual naked eye alignment, paperboard deviation during cutting, and manual operation habit difference in the prior art.

Description

Technical Field

[0001] This application relates to the field of packaging material processing technology, and in particular to a sample cutting device for corrugated cardboard. Background Technology

[0002] The edge crush strength test of corrugated cardboard requires the preparation of a rectangular specimen with dimensions of (25±0.5) mm × (100±0.5) mm according to the GB / T6546-2021 standard. Here, 25 mm is the dimension parallel to the corrugation direction and 100 mm is the dimension perpendicular to the corrugation direction to ensure that the pressure is applied evenly along the longitudinal direction of the corrugation structure, thereby truly reflecting the compressive strength of the corrugated cardboard. The currently commonly used sampling device mainly adopts a combination of mechanical limiting and manual visual alignment for sampling. The operator needs to manually place the entire corrugated cardboard on the workbench, judge the direction of the corrugation by visual inspection, and roughly position it through the limiting baffle. Then, the manual or semi-automatic cutting tool completes two cuts: first, a length of 100 mm is cut along the direction perpendicular to the corrugation, and then the specimen is rotated 90° and a width of 25 mm is cut.

[0003] In the aforementioned technologies, the lack of physical detection methods for corrugation orientation, relying entirely on manual visual judgment, easily leads to misjudgment of corrugation orientation due to unclear cardboard texture, light interference, or differences in operator experience. Simultaneously, uneven pressure distribution and insufficient clamping rigidity in the paper pressing mechanism can easily cause corrugated cardboard to shift during cutting. Incorrect corrugation orientation severely interferes with the results of edge crush strength tests. Because pressure cannot be applied evenly along the corrugation direction, the longitudinal support advantage of the corrugations is weakened, resulting in measured strength values ​​lower than the actual strength or data fluctuations. This violates the test conditions specified in the GB / T6546 standard, causing test data to lose consistency and comparability. Furthermore, erroneous test results can interfere with quality judgment in the production process, potentially leading to misjudgments of the production process, cost waste, or the entry of substandard products into the market. Utility Model Content

[0004] This application provides a sample cutting device for corrugated cardboard, which at least solves the problems of insufficient mechanical positioning accuracy of sampling machines in related technologies, lack of corrugation direction detection function, reliance on simple limiting structures and visual alignment by human eyes resulting in visual errors, cardboard offset during cutting, and differences in human operating habits.

[0005] This application provides a sample cutting device for corrugated cardboard, including a base, an adjustment module, a calibration module, and a cutting module. The base has a sample receiving space for accommodating a sample. The adjustment module is mounted on the base and located outside the sample receiving space. The adjustment module has two movably arranged clamping parts with a preset angle between them. The calibration module is mounted on the base and located outside the adjustment module. The calibration module has two calibration parts, each corresponding to one of the clamping parts. The cutting module is mounted on the base and has a movably arranged cutting part for cutting. The first calibration unit is used to cut the template into samples of a preset size. When the first calibration unit performs calibration, the first clamping unit is in an avoidance position to avoid the calibration light emitted by the first calibration unit, and the second clamping unit is in a clamping position to adjust the corrugated direction of the template to be parallel to the direction of the calibration light emitted by the first calibration unit. When the second calibration unit performs calibration, the second clamping unit is in an avoidance position to avoid the calibration light emitted by the second calibration unit, and the first clamping unit is in a clamping position to adjust the corrugated direction of the template to be parallel to the direction of the calibration light emitted by the second calibration unit.

[0006] In an exemplary embodiment, the cutting unit includes a plurality of cutting blades, which are spaced apart along a first direction and each cutting blade is slidably disposed along a second direction. The second direction has a preset angle with the first direction, and each cutting blade can be raised and lowered.

[0007] In an exemplary embodiment, the plurality of cutting blades are divided into at least two groups of cutting blades, each group of cutting blades including two cutting blades; the interval between the two cutting blades in the first group of cutting blades is equal to the side length of one side of the first group of oppositely arranged sides of the sample; the interval between the two cutting blades in the second group of cutting blades is equal to the side length of one side of the second group of oppositely arranged sides of the sample; wherein, the first group of cutting blades and the second group of cutting blades extend and retract independently.

[0008] In an exemplary embodiment, the sample cutting device further includes a control module integrated on the base. The adjustment module, calibration module, and cutting module are all connected to the control module. The control module is used to control the first set of cutting blades to perform a first cut based on the parallelism between the corrugated direction of the sample and the direction of the calibration light emitted by the first set of calibration units. The control module is also used to control the second set of cutting blades to perform a second cut on the sample after it has been rotated by a preset angle based on the parallelism between the corrugated direction of the sample and the direction of the calibration light emitted by the second set of calibration units.

[0009] In one exemplary embodiment, a plurality of cutting blades are arranged at equal intervals along a first direction.

[0010] In an exemplary embodiment, the outer periphery of the template accommodating space has two sets of accommodating slots, which correspond one-to-one with two sets of clamping parts. Each set of clamping parts can be raised and lowered at the corresponding set of accommodating slots to switch between an avoidance position and a clamping position.

[0011] In an exemplary embodiment, a set of clamping parts includes two clamping blocks, which are arranged opposite to each other, and the surfaces of the two clamping blocks facing the template receiving space serve as clamping surfaces; a set of receiving slots includes two receiving slots, which are arranged opposite to each other, and the two receiving slots in the same set of receiving slots correspond one-to-one with the two clamping blocks in the corresponding set of clamping parts; both clamping blocks are rotatably disposed relative to the base at the corresponding two receiving slots, and the two clamping blocks in the same set of clamping parts move synchronously to drive the template to rotate through the two clamping blocks.

[0012] In one exemplary embodiment, the clamping surface is adapted to the side of the template so that the clamping surface and the side of the template are in surface-to-surface contact.

[0013] In an exemplary embodiment, the bottom surface of the receiving groove is provided with a pivot hole and arc-shaped holes on both sides of the pivot hole, and both arc-shaped holes extend towards the pivot hole. A liftable pivot shaft is provided on the bottom outer surface of the clamping block at the position opposite to the pivot hole, and a guide rod is provided on the bottom outer surface of the clamping block at the position opposite to the two arc-shaped holes. The guide rod slides in cooperation with the arc-shaped holes only when the clamping block rises and protrudes out of the receiving groove.

[0014] In an exemplary embodiment, a calibration unit includes an infrared transmitter and an infrared receiver, which are arranged opposite to each other. The infrared transmitter is used to emit calibration light to the side of the template, and the infrared receiver is used to receive and identify the area of ​​the illumination pattern formed by the calibration light passing through the corrugated holes of the template. When the area of ​​the illumination pattern is at its maximum, the corrugation direction is parallel to the direction of the calibration light.

[0015] This application provides a sample cutting device for corrugated cardboard. A sample is held in a sample accommodating space on a base, and an adjustment module with two sets of clamping parts is provided outside the sample accommodating space. The two sets of clamping parts are arranged at a preset angle, corresponding to the two calibration parts of a calibration module. The calibration module is located outside the adjustment module, and its two sets of calibration parts can emit calibration rays that are perpendicular to each other or at a specific angle to guide the orientation of the corrugation. During calibration, the sample cutting device uses coordinated control to position one set of clamping parts in an avoidance position, completely exiting the calibration ray path to avoid obstructing the light path, while the other set of clamping parts is simultaneously in a clamping position, stably clamping the sample and driving it to rotate or translate until the corrugation direction of the sample is parallel to the direction of the calibration ray emitted by the current calibration part. When switching to another calibration direction, the original clamping part retracts to the avoidance position, and the other clamping part takes over the clamping task, achieving secondary alignment of the corrugation direction of the sample rotated at a preset angle manually. This dual-group alternating calibration and clamping mechanism allows the sample to be precisely aligned with two orthogonal or designed test directions without relying on manual visual inspection or auxiliary rulers. This ensures that the corrugation orientation of the subsequently cut samples strictly meets the standard test requirements, completely solving the technical problem of inaccurate pressure test data caused by corrugation orientation deviation in the traditional sampling process. It significantly improves the standardization of sample preparation and the reliability of test results. Attached Figure Description

[0016] To more clearly illustrate the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a sample cutting device provided in an embodiment of this application;

[0018] Figure 2 for Figure 1 A schematic diagram of the state structure of the sample cutting device in which the first set of clamping parts is in the avoidance position and the second set of clamping parts is in the clamping position;

[0019] Figure 3 for Figure 1 A schematic diagram of the state structure of the sample cutting device in which the second set of clamping parts is in the avoidance position and the first set of clamping parts is in the clamping position;

[0020] Figure 4 for Figure 3 The schematic diagram of the sample cutting device in the image omits a structural diagram of a clamping block.

[0021] Figure 5 for Figure 3 A schematic diagram of the clamping block of the sample cutting device.

[0022] The above figures include the following reference numerals:

[0023] 10. Base; 11. Template receiving space; 12. Receiving groove; 121. Pivoting hole; 122. Arc-shaped hole;

[0024] 20. Adjustment module; 21. Clamping block; 211. Pivot shaft; 212. Guide rod;

[0025] 30. Calibration module; 31. Infrared transmitter; 32. Infrared receiver;

[0026] 40. Cutting module; 41. Cutting blade; 42. Cutting blade holder;

[0027] 50. Control module. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0029] It should be noted that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. The terms "installed," "connected," and "linked" should be interpreted broadly, for example, they can be fixed connections, detachable connections, or integral connections; they can be mechanical connections or electrical connections; they can be direct connections or indirect connections through an intermediate medium; they can be internal connections between two elements. The terms "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, wherein the acceptable deviation range is determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, where an acceptable deviation range for approximate parallelism can be, for example, within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, where an acceptable deviation range for approximate perpendicularity can also be, for example, within 5°. "Equal" includes absolute equality and approximate equality, where an acceptable deviation range for approximate equality can be, for example, a difference between the two equal items being less than or equal to 5% of either one. Those skilled in the art will understand the specific meaning of the above terms in this application based on the specific circumstances.

[0030] To enable those skilled in the art to better understand the present application, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] The embodiments of this application provide a sample cutting device for corrugated cardboard. The device is described in detail in conjunction with its structure and working principle (the technical terms involved must be explained).

[0032] like Figures 1 to 5As shown, the sample cutting device for corrugated cardboard includes a base 10, an adjustment module 20, a calibration module 30, and a cutting module 40. The base 10 has a sample receiving space 11 for accommodating the sample. The adjustment module 20 is mounted on the base 10 and located outside the sample receiving space 11. The adjustment module 20 has two movably arranged clamping parts with a preset angle between them. The calibration module 30 is mounted on the base 10 and located outside the adjustment module 20. The calibration module 30 has two calibration parts, each corresponding to one of the clamping parts. The cutting module 40 is mounted on the base 10. 0 has a movable cutting section for cutting a sample into specimens of a preset size; wherein, when the first set of calibration sections performs calibration operations, the first set of clamping sections is in an avoidance position to avoid the calibration light emitted by the first set of calibration sections, and the second set of clamping sections is in a clamping position to adjust the corrugated direction of the sample to be parallel to the direction of the calibration light emitted by the first set of calibration sections; when the second set of calibration sections performs calibration operations, the second set of clamping sections is in an avoidance position to avoid the calibration light emitted by the second set of calibration sections, and the first set of clamping sections is in a clamping position to adjust the corrugated direction of the sample to be parallel to the direction of the calibration light emitted by the second set of calibration sections.

[0033] Using the technical solution of this application, a sample cutting device for corrugated cardboard includes a base 10, which has a sample receiving space 11 for accommodating samples. An adjustment module 20 is disposed on the base 10 and located outside the sample receiving space 11. It is equipped with two sets of movable clamping parts, which form a preset angle between the two sets of clamping parts. A calibration module 30 is disposed on the base 10 and located outside the adjustment module 20. It includes two sets of calibration parts, each set of calibration parts corresponding to one set of clamping parts. A cutting module 40 is mounted on the base 10 and has movable cutting parts for cutting the sample into samples of a preset size. During the calibration process, when the first set of calibration parts emits calibration light for directional calibration, the first set of clamping parts automatically moves to an avoidance position, so that the calibration light is projected onto the side of the sample without obstruction. At the same time, the second set of clamping parts is in the clamping position, and by applying a positioning force, the corrugated direction of the sample is aligned with the side of the sample. The calibration rays emitted by the first calibration unit are strictly parallel. Subsequently, the sample that has been cut once is manually rotated at a preset angle and placed back into the sample receiving space 11. When the second calibration unit starts the calibration operation, the second clamping unit moves to a clearance position, allowing its emitted calibration rays to directly illuminate the side of the sample, while the first clamping unit switches to the clamping position and readjusts the corrugation direction of the sample to make it parallel to the direction of the calibration rays of the second calibration unit. Through the alternating and coordinated action of the two calibration units and the two clamping units, high-precision orientation calibration of the corrugation direction of the sample in two orthogonal dimensions is achieved. This completely solves the problem of insufficient sample standardization caused by the inability to accurately align the corrugation direction in the traditional sampling process, ensuring that each sample obtained by the cutting module 40 subsequently meets the specifications for the corrugation direction, and significantly improving the accuracy and repeatability of the test results.

[0034] like Figure 1As shown, the cutting unit includes multiple cutting blades 41, which are spaced apart along a first direction. Each cutting blade 41 is slidably arranged along a second direction, which has a preset angle with the first direction. Each cutting blade 41 can be raised and lowered. In this way, the cutting unit includes multiple cutting blades 41, which are spaced apart along a first direction. Each cutting blade 41 is slidably set along a second direction, which has a preset angle with the first direction. Each cutting blade 41 can be raised and lowered, so that after the sample is precisely aligned in the corrugated direction by the calibration module 30 and the adjustment module 20, the cutting module 40 can simultaneously slide and raise and lower along the second direction through multiple cutting blades 41, completing a 100mm side length cut perpendicular to the corrugated direction in a single stroke. When the sample is rotated 90° and repositioned so that the corrugated direction is parallel to another set of calibration rays, the multiple cutting blades 41 slide and raise and lower along the second direction again, simultaneously completing a 25mm side length cut parallel to the corrugated direction. This avoids the cumulative error and low efficiency caused by the need to flip the sample and reposition it repeatedly in the traditional method, achieving one-time forming and high-precision matching of the sample size, improving cutting consistency and production efficiency.

[0035] like Figure 1 As shown, the cutting module 40 also includes a cutting blade holder 42, on which multiple cutting blades 41 are slidably mounted.

[0036] like Figure 1 As shown, the multiple cutting blades 41 are divided into at least two groups of cutting blades, each group of cutting blades including two cutting blades 41; the interval between the two cutting blades 41 in the first group of cutting blades is equal to the side length of the two opposite sides of the first group of the sample; the interval between the two cutting blades 41 in the second group of cutting blades is equal to the side length of the two opposite sides of the second group of the sample; wherein, the first group of cutting blades and the second group of cutting blades extend and retract independently. In this way, the multiple cutting blades 41 are divided into at least two groups of cutting blades, each group containing two cutting blades 41. The distance between the two cutting blades 41 in the first group is consistent with the side length of the opposite side of the first group of the sample, and the distance between the two cutting blades 41 in the second group is consistent with the side length of the opposite side of the second group of the sample. The first and second groups of cutting blades can be driven to extend and retract independently. After the sample is precisely aligned in the corrugated direction by the calibration module 30 and the adjustment module 20, the first group of cutting blades can operate independently and cut a 100mm edge in one go along the first direction without moving the sample. Then, the sample is manually removed from the sample receiving space 11 and rotated at a preset angle. The posture of the sample is adjusted by the adjustment module 20 so that the corrugated direction is parallel to the direction of the calibration light emitted by the second calibration unit. The second group of cutting blades then operates independently and cuts a 25mm edge in one go along the second direction, realizing precision cutting of the rectangular sample without flipping or repositioning.

[0037] like Figure 1 As shown, arrow A indicates the second direction, and arrow B indicates the first direction.

[0038] It should be noted that, in a specific embodiment of this application, the aforementioned preset included angle is 90°.

[0039] like Figures 1 to 4 As shown, the sample cutting device also includes a control module 50, which is integrated on the base 10. The adjustment module 20, calibration module 30, and cutting module 40 are all connected to the control module 50. The control module 50 is used to control the first set of cutting blades to perform a first cut based on the direction of the corrugation of the sample being parallel to the direction of the calibration light emitted by the first set of calibration units. The control module 50 is also used to control the second set of cutting blades to perform a second cut on the sample after it has been rotated by a preset angle based on the direction of the corrugation of the sample being parallel to the direction of the calibration light emitted by the second set of calibration units. In this way, the control module 50 is integrated on the base 10 and establishes a signal connection with the adjustment module 20, the calibration module 30 and the cutting module 40. When the calibration light emitted by the first calibration unit of the calibration module 30 is aligned with the corrugation direction of the sample, the control module 50 receives the calibration signal and triggers the first cutting blade group to perform a cutting action, ensuring that the first cutting path is precisely parallel to the corrugation direction. Subsequently, after the sample is manually removed from the sample holding space 11 and rotated at a preset angle, the adjustment module 20 adjusts the sample so that the corrugation direction is aligned with the calibration light emitted by the second calibration unit of the calibration module 30. The control module 50 receives the calibration signal again and simultaneously starts the second cutting blade group to perform a second cutting on the rotated sample, so that the two cuttings are precisely performed along the corrugation direction and its orthogonal dimension, respectively, realizing automatic linkage of biaxial calibration and cutting control, completely eliminating manual alignment error, and ensuring that the obtained sample meets the standard specifications in both dimensions of size and corrugation orientation.

[0040] like Figure 1 As shown, multiple cutting blades 41 are arranged at equal intervals along a first direction. This arrangement ensures that each cutting blade 41, while simultaneously sliding and rising / falling along a second direction to perform the cutting action, acts on the sample surface with uniform spacing. This guarantees that the dimensions of the cut sample are strictly consistent in the first direction, avoiding edge irregularities, length deviations, or localized stress concentrations caused by uneven spacing of the cutting blades 41. The equal-interval layout, combined with the sliding capability of the cutting section along the second direction and the height-adjustable structure of each cutting blade 41, provides both flexible path adaptability and maintains uniform cutting accuracy. This significantly improves the standardization and repeatability of sample forming, especially after precise calibration in the corrugated direction using the adjustment and calibration modules, further ensuring the dual consistency of sample size and corrugated orientation.

[0041] like Figure 4 As shown, the outer periphery of the template accommodating space 11 has two sets of accommodating slots, each corresponding to one of the two sets of clamping parts. Each set of clamping parts can be raised and lowered within its corresponding accommodating slot, allowing switching between a clearance position and a clamping position. Thus, the outer periphery of the template accommodating space 11 has two sets of accommodating slots, each corresponding to one of the two sets of clamping parts. Each set of clamping parts can be raised and lowered vertically within its corresponding accommodating slot, allowing switching between a clamping position and a clearance position. When the first calibration unit performs calibration, the corresponding first set of clamping parts is fully inserted into its accommodating slot by a lowering motion, switching to a clearance position. This allows the calibration light emitted by the first calibration unit to be projected onto the template surface without obstruction. Simultaneously, the second set of clamping parts remains in the clamping position to stabilize the template and guide its corrugations. The direction is parallel to the calibration light; conversely, when the second set of calibration units performs calibration, the second set of clamping units descends into its corresponding receiving slot group to enter the avoidance position, ensuring that the calibration light of the second set of calibration units is clearly projected, while the first set of clamping units remains in the clamping position to adjust the corrugated direction of the sample to align with the second set of calibration light; this lifting structure design effectively avoids the interference of the clamping units on the light path during the calibration process through spatial isolation, significantly improving the accuracy and consistency of corrugated direction identification, and providing a reliable positioning basis for the subsequent high-precision sample cutting of the cutting module 40.

[0042] like Figure 4As shown, a set of clamping parts includes two clamping blocks 21, which are arranged opposite to each other, and the surface of the two clamping blocks 21 facing the template receiving space 11 serves as the clamping surface; a set of receiving grooves includes two receiving grooves 12, which are arranged opposite to each other, and the two receiving grooves 12 in the same set of receiving grooves 12 correspond one-to-one with the two clamping blocks 21 in the corresponding set of clamping parts; the two clamping blocks 21 are rotatably disposed relative to the base 10 at the corresponding two receiving grooves 12, and the two clamping blocks 21 in the same set of clamping parts move synchronously to drive the template to rotate through the two clamping blocks 21. In this way, each clamping part consists of two clamping blocks 21. The two clamping blocks 21 are arranged opposite each other and correspond to one of the two sets of receiving slots 12 on the outer periphery of the base 10. The surface of the clamping block facing the sample receiving space 11 forms the clamping surface, which is used to firmly clamp the sample. The two receiving slots 12 are arranged opposite each other, and each clamping block 21 can rotate freely relative to the base 10 in the corresponding receiving slot 12. The two clamping blocks 21 in the same clamping part can rotate synchronously through a linkage structure. When the adjustment module 20 drives the clamping part to switch from the avoidance position to the clamping position, the two clamping blocks 21 can rotate synchronously while clamping the sample, thereby driving the sample to rotate around the axis perpendicular to its surface. This makes the corrugated direction of the sample accurately aligned with the direction of the calibration light emitted by the calibration module 30, realizing stepless fine adjustment and precise alignment of the corrugated direction. This completely solves the alignment deviation problem caused by the traditional clamping structure that can only lift and cannot rotate, and significantly improves the standardization of sample sampling and the reliability of test results.

[0043] In an exemplary embodiment, the clamping surface is adapted to the side of the template so that the clamping surface and the side of the template are in surface-to-surface contact. Thus, the surface of the clamping block 21 facing the template receiving space 11 is designed to adapt to the shape of the side of the template, enabling the clamping surface of the clamping block 21 to achieve surface-to-surface contact with the entire side of the template, rather than applying clamping force only through point or line contact. This structure, combined with the linkage mechanism of synchronous rotation of the two clamping blocks 21, ensures that the template is subjected to uniform force during rotational calibration, without local slippage or deflection, effectively avoiding corrugation direction deviation caused by insufficient contact, and significantly improving the accuracy of the alignment between the calibration light emitted by the calibration module 30 and the corrugation direction of the template. Simultaneously, the surface-to-surface contact enhances clamping stability, allowing the template to be precisely adjusted to a preset angle while clamped, providing a reliable positioning basis for the high-precision cutting of the subsequent cutting module 40.

[0044] like Figure 4 and Figure 5As shown, the bottom surface of the receiving groove 12 is provided with a pivot hole 121 and arc-shaped holes 122 located on both sides of the pivot hole 121. Both arc-shaped holes 122 extend towards the pivot hole 121. A lifting pivot shaft 211 is provided on the bottom outer surface of the clamping block 21 at the position opposite to the pivot hole 121. A guide rod 212 is provided on the bottom outer surface of the clamping block 21 at the position opposite to the two arc-shaped holes 122. The guide rod 212 slides with the arc-shaped hole 122 only when the clamping block 21 rises and protrudes out of the receiving groove 12. Thus, when the clamping block 21 rises and protrudes from the receiving groove 12, its bottom pivot shaft 211 engages with the pivot hole 121 on the bottom surface of the receiving groove 12 to form a rotation fulcrum. Simultaneously, the guide rods 212 on both sides are embedded in the corresponding arc-shaped holes 122 and slide along their curved path. This structure ensures that the clamping block 21 is constrained by the trajectory of the arc-shaped holes 122 during rotation, guaranteeing precise and controllable rotation angle around the pivot shaft 211 and preventing deviation of the template corrugated direction due to free rotation or slippage. When the clamping block 21 descends back into the receiving groove 12, The guide rod 212 disengages from the arc-shaped hole 122, and the clamping part automatically enters the avoidance state, realizing the separation of the rotation mechanism and the positioning mechanism. This ensures stability and accuracy during the clamping process and avoids structural interference when not in operation. The curvature of the arc-shaped hole 122 is designed to face the pivot hole 121, ensuring that the rotation trajectory of the clamping block 21 always revolves around the center area of ​​the template. This allows the two sets of clamping parts to work together to achieve high-precision parallel alignment between the template corrugation direction and the calibration light when adjusted synchronously, significantly improving the standardization of sampling and the reliability of repeated positioning of the device.

[0045] like Figures 2 to 4As shown, a calibration unit includes an infrared transmitter 31 and an infrared receiver 32, which are arranged opposite to each other. The infrared transmitter 31 is used to emit calibration light to the side of the template, and the infrared receiver 32 is used to receive and identify the area of ​​the illumination pattern formed by the calibration light passing through the corrugated holes of the template. When the illumination pattern area is the largest, the corrugation direction is parallel to the direction of the calibration light. Thus, the calibration module 30 includes two calibration sections, each consisting of an infrared transmitter 31 and an infrared receiver 32 arranged opposite to each other. The infrared transmitter 31 emits calibration light towards the side of the sample. After passing through the corrugated holes of the sample, the calibration light is received by the infrared receiver 32, which identifies the area of ​​the resulting illuminated pattern. When the corrugation direction of the sample is completely parallel to the direction of the calibration light, the path of the light passing through the corrugated holes is maximized, and the area of ​​the resulting illuminated pattern reaches its peak. At this time, the signal intensity output by the infrared receiver 32 corresponds to the maximum area value. The adjustment module 20 automatically adjusts the position of the clamping part accordingly, so that the corrugation direction of the sample is precisely aligned with the direction of the calibration light. This mechanism achieves automatic identification and precise alignment of the corrugation direction through real-time feedback of the illuminated pattern area, overcoming the alignment errors caused by traditional manual observation or mechanical limiting. This ensures that the samples generated by the subsequent cutting module 40 strictly follow the corrugation direction standard, significantly improving sampling consistency and detection reliability.

[0046] The process of the technical solution in this application is described below:

[0047] The sample is placed in the sample receiving space 11 of the base 10, and the control module 50 starts the adjustment module 20 and the calibration module 30. When the first calibration unit performs calibration, the first clamping unit descends into the receiving slot and switches to the avoidance position, allowing the calibration light emitted by the infrared emitter of the first calibration unit to be projected onto the side of the sample without obstruction. Simultaneously, the second clamping unit remains in the clamping position, stabilizing the sample through surface-to-surface contact between its clamping surface and the side of the sample. The infrared receiver 32 identifies the area of ​​the illumination pattern formed by the calibration light passing through the corrugated holes of the sample. When the illumination pattern area is at its maximum, the control module 50 determines that the corrugation direction of the sample is parallel to the calibration light direction of the first calibration unit. The control module 50 then controls the first cutting blade group to move, causing the two cutting blades 41 in the first cutting blade group to slide synchronously and descend along the second direction, completing one cut on the sample, forming a 100mm side length perpendicular to the corrugation direction. Subsequently, the sample is manually removed from the sample receiving space 11 and rotated by a preset angle. The first clamping unit of the adjustment module 20 is adjusted to align the corrugation direction of the sample with the second calibration unit. The calibration light direction is aligned; during this process, the second set of clamping parts descends into its corresponding receiving slot and switches to the avoidance position, so that the calibration light emitted by the infrared emitter 31 of the second set of calibration parts is projected onto the side of the sample without obstruction. At the same time, the first set of clamping parts rises and switches to the clamping position, and the sample is stabilized again through the surface-to-surface contact between its clamping surface and the side of the sample; the infrared receiver 32 re-identifies the area of ​​the illuminated pattern. When the area of ​​the illuminated pattern is the largest, the control module 50 determines that the corrugation direction of the sample is parallel to the calibration light direction of the second set of calibration parts. Then, the control module 50 controls the second set of cutting blades to move, so that the two cutting blades in the second set of cutting blades slide synchronously and descend along the second direction to complete the secondary cutting of the sample, forming a 25mm side length parallel to the corrugation direction; finally, the cutting module completes the biaxial precise cutting of the sample to form a 25mm×100mm sample conforming to the GB / T6546 standard. The control module stops all actions, and the operator takes out the sample.

[0048] The foregoing provides a detailed description of a sample cutting device for corrugated cardboard provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The descriptions of the embodiments above are merely for the purpose of helping to understand the method and core ideas of this application. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the protection scope of the claims of this application.

Claims

1. A sample cutting device for corrugated cardboard, characterized in that, include: The base (10) has a template receiving space (11) for receiving templates. Adjustment module (20), the adjustment module (20) is disposed on the base (10) and located outside the template accommodating space (11), the adjustment module (20) has two sets of clamping parts that are movably disposed, and there is a preset angle between the two sets of clamping parts; A calibration module (30) is disposed on the base (10) and located outside the adjustment module (20). The calibration module (30) has two sets of calibration parts, and the two sets of calibration parts correspond one-to-one with the two sets of clamping parts. A cutting module (40) is mounted on the base (10). The cutting module (40) has a movable cutting part, which is used to cut the template into samples of a preset size. When the first group of calibration units performs calibration operations, the clamping units of the first group are in an avoidance position to avoid the calibration light emitted by the first group of calibration units, and the clamping units of the second group are in a clamping position to adjust the corrugation direction of the template to be parallel to the direction of the calibration light emitted by the first group of calibration units. When the second set of calibration units performs calibration operations, the clamping units of the second set are in an avoidance position to avoid the calibration light emitted by the second set of calibration units, and the clamping units of the first set are in a clamping position to adjust the corrugation direction of the template to be parallel to the direction of the calibration light emitted by the second set of calibration units.

2. The sample cutting device according to claim 1, characterized in that, The cutting section includes: Multiple cutting blades (41) are arranged at intervals along a first direction, and each cutting blade (41) is slidably arranged along a second direction. The second direction has the preset angle with the first direction, and each cutting blade (41) can be raised and lowered.

3. The sample cutting device according to claim 2, characterized in that, The plurality of cutting blades (41) are divided into at least two groups of cutting blades, each group of cutting blades comprising two cutting blades (41). The distance between the two cutting blades (41) in the first group of cutting blades is equal to the length of one side of the two opposite sides of the first group of the sample; The distance between the two cutting blades (41) in the second group of cutting blades is equal to the length of one side of the two oppositely arranged sides of the second group of the sample; The first group of cutting blades and the second group of cutting blades have independent telescopic movements.

4. The sample cutting device according to claim 3, characterized in that, The sample cutting device further includes: A control module (50) is integrated on the base (10), and the adjustment module (20), the calibration module (30), and the cutting module (40) are all connected to the control module (50). The control module (50) is used to control the first group of cutting blades to perform a cut according to the fact that the corrugation direction of the template is parallel to the direction of the calibration light emitted by the first group of calibration units. The control module (50) is used to control the second set of cutting blades to perform secondary cutting on the template after it has been rotated by a preset angle, based on the fact that the corrugation direction of the template is parallel to the direction of the calibration light emitted by the second set of calibration units.

5. The sample cutting device according to claim 2, characterized in that, The plurality of cutting blades (41) are arranged at equal intervals along the first direction.

6. The sample cutting device according to claim 1, characterized in that, The outer periphery of the template accommodating space (11) has two sets of accommodating slots, and the two sets of accommodating slots correspond one-to-one with the two sets of clamping parts. Each set of clamping parts can be raised and lowered at the corresponding set of accommodating slots to switch between the avoidance position and the clamping position.

7. The sample cutting device according to claim 6, characterized in that, One set of the clamping parts includes: Two clamping blocks (21) are arranged opposite each other, and the surfaces of the two clamping blocks (21) facing the template receiving space (11) serve as clamping surfaces; One set of the accommodating slots includes: Two receiving slots (12) are arranged opposite to each other, and the two receiving slots (12) in the same group of receiving slots (12) correspond one-to-one with the two clamping blocks (21) in the corresponding clamping parts in the same group; Both clamping blocks (21) are rotatably disposed at the corresponding two receiving slots (12) relative to the base (10), and the two clamping blocks (21) in the same group of clamping parts move synchronously to drive the template to rotate through the two clamping blocks (21).

8. The sample cutting device according to claim 7, characterized in that, The clamping surface is adapted to the side of the template so that the clamping surface and the side of the template are in full contact.

9. The sample cutting device according to claim 7, characterized in that, The bottom surface of the receiving groove (12) is provided with a pivot hole (121) and arc-shaped holes (122) located on both sides of the pivot hole (121). Both arc-shaped holes (122) extend towards the pivot hole (121). A movable pivot shaft (211) is provided on the bottom outer surface of the clamping block (21) opposite to the pivot hole (121). A guide rod (212) is provided on the bottom outer surface of the clamping block (21) opposite to the two arc-shaped holes (122). The guide rod (212) slides with the arc-shaped hole (122) only when the clamping block (21) rises and protrudes from the receiving groove (12).

10. The sample cutting device according to claim 1, characterized in that, A set of the calibration units includes: An infrared transmitter (31) and an infrared receiver (32) are arranged opposite to each other. The infrared emitter (31) is used to emit the calibration light to the side of the template, and the infrared receiver (32) is used to receive and identify the area of ​​the illumination pattern formed by the calibration light passing through the corrugated holes of the template. When the area of ​​the illumination pattern is the largest, the corrugation direction is parallel to the direction of the calibration light.

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