Corrugated board bursting strength detection device

Abstract

The utility model discloses a corrugated board bursting strength detection device which comprises a base and is characterized in that a paperboard detection table is arranged on the base, a stand column support is arranged on the paperboard detection table, an upper supporting plate is arranged on the top of the stand column support, a lower piezoelectric cylinder is arranged on the upper supporting plate, and a lower piezoelectric cylinder is arranged on the lower piezoelectric cylinder. The output end of the lower piezoelectric cylinder is connected with a breakage detection mechanism, and a control terminal is arranged on one side of the paperboard detection table. The pressing frame is divided into a plurality of sub-frames, each sub-frame is internally provided with an independent bursting resistance detector to detect the bursting resistance of the internal paperboard, the plurality of bursting resistance detectors are used simultaneously, and the average value of the measurement results is taken, so that the bursting resistance of the paperboard can be measured at one time, multiple times of detection are not needed, the detection time is saved, and the detection efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of corrugated paper production technology, specifically to a device for testing the bursting strength of corrugated cardboard. Background Technology

[0002] The production process of corrugated cardboard is a core step in the manufacturing of packaging cartons. Its quality directly affects the strength, cushioning performance, and printability of the cartons. Strength testing of corrugated cardboard during production is a crucial step to ensure it meets packaging requirements. This is mainly achieved through a series of standardized tests to evaluate its compression resistance, bursting strength, and adhesion properties, including edge crush strength testing, bursting strength testing, adhesive strength testing, flat crush strength testing, and tensile strength testing. Among these, bursting strength testing requires multiple measurements of the cardboard being tested, and the average value of the data in the test record is calculated. The average value is taken as the bursting strength of the cardboard. However, traditional bursting strength testing devices can only perform one test on the cardboard at a time, requiring multiple repetitions to complete the bursting strength test, resulting in low testing efficiency. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a corrugated cardboard bursting strength testing device to solve the problem of improving testing efficiency mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a corrugated cardboard bursting strength testing device, comprising a base, characterized in that: a cardboard testing platform is provided on the base, a column support is provided on the cardboard testing platform, an upper support plate is provided on the top of the column support, a lower pressure electric cylinder is provided on the upper support plate, the output end of the lower pressure electric cylinder is connected to a bursting strength testing mechanism, and a control terminal is provided on one side of the cardboard testing platform;

[0005] The bursting strength testing mechanism consists of a clamping frame and multiple bursting strength detectors. The center of the clamping frame is fixed to the output end of the lower electric cylinder. A pressure bar is provided inside the clamping frame, which divides the clamping frame into several sub-frames. A bursting strength detector fixing plate is provided inside each sub-frame, and a bursting strength detector is fixed on the bursting strength detector fixing plate.

[0006] In a preferred embodiment of this invention, the bursting strength detector includes a bursting strength detection cylinder, a puncture column, a bursting strength detection pressure head, and a pressure sensor. The bursting strength detection cylinder is fixed on the bursting strength detector mounting plate and electrically connected to the control terminal. The output end of the bursting strength detection cylinder is fixedly connected to the puncture column. A bursting strength detection pressure head is provided at the bottom of the puncture column. A pressure sensor is provided at the contact point between the bursting strength detection pressure head and the paper surface. The pressure sensor is electrically connected to the control terminal.

[0007] As a preferred embodiment of this utility model, the bottom surface of the pressure strip is provided with a rubber anti-slip layer A, and the bottom surface of the outer wall of the pressing frame is lower than the bottom surface of the middle pressure strip.

[0008] As a preferred embodiment of this utility model, the cardboard detection platform is provided with a cardboard limiting groove, and a separating protrusion is provided on the inner side of the cardboard limiting groove. The cross-section of the separating protrusion is trapezoidal, and the surface of the separating protrusion is covered with a layer of rubber anti-slip layer B.

[0009] In a preferred embodiment of this invention, the dividing ridges are arranged one-to-one below the pressure strip, and the width of the upper surface of the dividing ridges is the same as the width of the pressure strip.

[0010] As a preferred embodiment of this utility model, guide posts are provided around the clamping frame, and the top of the guide posts passes through the upper support plate.

[0011] In a preferred embodiment of this invention, the lowering electric cylinder is electrically connected to the control terminal.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention divides the compression frame into multiple sub-frames, each equipped with an independent bursting strength detector to test the bursting strength of the cardboard inside. Multiple bursting strength detectors perform tests simultaneously, and the average value of the measurement results is taken. This allows for a one-time determination of the cardboard's bursting strength, eliminating the need for multiple tests, saving testing time, and improving testing efficiency.

[0014] This invention installs dividing ridges and pressure strips in the cardboard limiting groove and the pressing frame respectively, with each dividing ridge and pressure strip corresponding to the other. After the cardboard enters the cardboard limiting groove, the dividing ridges and pressure strips press the cardboard tightly, making the cardboard relatively independent in each frame. This ensures that the cardboard does not affect each other during burst strength testing, thus improving the accuracy of burst strength testing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall planar structure of this utility model;

[0016] Figure 2 This is an enlarged planar structural diagram of the burst strength testing mechanism of this utility model;

[0017] Figure 3 This is a schematic diagram of the pressing frame structure from a bottom view.

[0018] In the diagram: 1. Base; 2. Cardboard inspection table; 3. Column support; 4. Upper support plate; 5. Lower pressure cylinder; 6. Bursting strength testing mechanism; 601. Pressing frame; 602. Bursting strength detector; 6021. Bursting strength testing cylinder; 6022. Puncture column; 6023. Bursting strength testing pressure head; 6024. Pressure sensor; 603. Pressure strip; 604. Separator frame; 605. Bursting strength detector fixing plate; 606. Rubber anti-slip layer A; 607. Guide column; 7. Control terminal; 8. Cardboard limiting groove; 9. Separating ridge; 10. Rubber anti-slip layer B. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] like Figures 1 to 3 As shown, this utility model provides a corrugated cardboard bursting strength testing device, including a base 1, a cardboard testing platform 2 on the base 1, a column support 3 on the cardboard testing platform 2, an upper support plate 4 on the top of the column support 3, a lower pressure electric cylinder 5 on the upper support plate 4, the output end of the lower pressure electric cylinder 5 is connected to a bursting strength testing mechanism 6, and a control terminal 7 is provided on one side of the cardboard testing platform 2.

[0021] refer to Figure 1-3 The bursting strength testing mechanism 6 consists of a clamping frame 601 and multiple bursting strength detectors 602. The center of the clamping frame 601 is fixed on the output end of the lower electric cylinder 5. A pressure bar 603 is provided inside the clamping frame 601, which divides the clamping frame 601 into several sub-frames 604. A bursting strength detector fixing plate 605 is provided inside the sub-frames 604, and a bursting strength detector 602 is fixed on the bursting strength detector fixing plate 605.

[0022] By dividing the compression frame 601 into multiple sub-frames 604, and installing an independent bursting strength detector 602 in each sub-frame 604 to test the bursting strength of the cardboard inside, multiple bursting strength detectors 602 can perform the test simultaneously, and the average value of the measurement results can be taken. This allows the bursting strength of the cardboard to be determined in one go, eliminating the need for multiple tests, saving testing time and improving testing efficiency.

[0023] refer to Figure 2The cardboard inspection table 2 is provided with a cardboard limiting groove 8. A separating protrusion 9 is provided on the inner side of the cardboard limiting groove 8. The cross section of the separating protrusion 9 is trapezoidal. The surface of the separating protrusion 9 is covered with a layer of rubber anti-slip layer B10. The separating protrusion 9 is set below the pressure strip 603 one by one. The width of the upper surface of the separating protrusion 9 is the same as the width of the pressure strip 603.

[0024] By installing a dividing ridge 9 and a pressure strip 603 in the cardboard limiting groove 8 and the pressing frame 601 respectively, with the dividing ridge 9 and the pressure strip 603 corresponding one-to-one, the dividing ridge 9 and the pressure strip 603 press the cardboard tightly after it enters the cardboard limiting groove 8, so that the cardboard is relatively independent in each frame 604 and does not affect each other when performing burst strength testing, thereby improving the accuracy of burst strength testing.

[0025] How to use

[0026] The working principle and usage process of this utility model are as follows: The cardboard is placed in the cardboard limiting groove 8. The control terminal 7 controls the downward movement of the pressing cylinder 5, causing the pressing frame 601 to press the cardboard downwards. The guide posts 607 around the pressing frame 601 remain horizontal. The separating ridges 9 and the pressure strips 603 correspond one-to-one, separating the cardboard within the dividing frame 604. (The rubber anti-slip layer A606 and rubber anti-slip layer B10 prevent the cardboard from sliding under pressure.) The control terminal 7 controls the output end of the bursting strength detection cylinder 6021 to extend downwards, causing the bursting strength detection pressure head 6023 to press against the cardboard. The bursting strength detection pressure head 6023... Pressure sensor 6024 detects the pressure applied to the cardboard by bursting head 6023 and feeds it back to control terminal 7. As time goes on, the pressure reaches the bursting limit of the cardboard, and bursting head 6023 punctures the cardboard. At this time, pressure sensor 6024 detects the disappearance of pressure and generates a fluctuation in the feedback to control terminal 7. Control terminal 7 controls bursting detection cylinder 6021 to stop working and generates a pressure curve graph fed back by pressure sensor 6024. Multiple bursting detection mechanisms 6 detect simultaneously, and the average value of the measurement results is taken to obtain the bursting detection value of the cardboard. This eliminates the need for multiple tests, saves detection time, and improves detection efficiency.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for testing the bursting strength of corrugated cardboard, comprising a base (1), characterized in that: A cardboard testing platform (2) is provided on the base (1), a column support (3) is provided on the cardboard testing platform (2), an upper support plate (4) is provided on the top of the column support (3), a lower pressure electric cylinder (5) is provided on the upper support plate (4), the output end of the lower pressure electric cylinder (5) is connected to a bursting strength testing mechanism (6), and a control terminal (7) is provided on one side of the cardboard testing platform (2). The bursting strength testing mechanism (6) consists of a clamping frame (601) and multiple bursting strength detectors (602). The center of the clamping frame (601) is fixed on the output end of the lower electric cylinder (5). A pressure bar (603) is provided inside the clamping frame (601). The pressure bar (603) divides the clamping frame (601) into several sub-frames (604). A bursting strength detector fixing plate (605) is provided inside the sub-frames (604). A bursting strength detector (602) is fixed on the bursting strength detector fixing plate (605).

2. The corrugated cardboard bursting strength testing device according to claim 1, characterized in that: The bursting strength detector (602) includes a bursting strength detection electric cylinder (6021), a puncture column (6022), a bursting strength detection pressure head (6023), and a pressure sensor (6024). The bursting strength detection electric cylinder (6021) is fixed on the bursting strength detector fixing plate (605) and electrically connected to the control terminal (7). The output end of the bursting strength detection electric cylinder (6021) is fixedly connected to the puncture column (6022). The bursting strength detection pressure head (6023) is provided at the bottom of the puncture column (6022). The pressure sensor (6024) is provided at the contact point between the bursting strength detection pressure head (6023) and the paper surface. The pressure sensor (6024) is electrically connected to the control terminal (7).

3. The corrugated cardboard bursting strength testing device according to claim 1, characterized in that: The bottom surface of the pressure strip (603) is provided with a rubber anti-slip layer A (606), and the bottom surface of the outer wall of the pressing frame (601) is lower than the bottom surface of the middle pressure strip (603).

4. The corrugated cardboard bursting strength testing device according to claim 1, characterized in that: The cardboard inspection table (2) is provided with a cardboard limiting groove (8), and a separating protrusion (9) is provided on the inner side of the cardboard limiting groove (8). The cross section of the separating protrusion (9) is trapezoidal, and the surface of the separating protrusion (9) is covered with a rubber anti-slip layer B (10).

5. The corrugated cardboard bursting strength testing device according to claim 4, characterized in that: The dividing ridges (9) are arranged one-to-one below the pressure strip (603), and the width of the upper surface of the dividing ridges (9) is the same as the width of the pressure strip (603).

6. The corrugated cardboard bursting strength testing device according to claim 1, characterized in that: The clamping frame (601) is provided with guide posts (607) around its perimeter, and the top of the guide posts (607) passes through the upper support plate (4).

7. The corrugated cardboard bursting strength testing device according to claim 1, characterized in that: The lowering electric cylinder (5) is electrically connected to the control terminal (7).

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