Corrugated carton rocking cover performance detection equipment

Abstract

The invention relates to corrugated carton rocking cover performance detection equipment, and relates to the technical field of carton detection. The corrugated carton detection device comprises a detection table, a pressing plate and a driving assembly, the detection table is used for placing a corrugated carton, and the driving assembly is used for driving the pressing plate to be close to or away from a swing cover of the corrugated carton and abutting against the swing cover when the pressing plate is close to the swing cover; the device further comprises a controller and a visual detector, and the visual detector is electrically connected to the controller. The visual detector is used for detecting a detection image after the rocking cover is pressed, the controller is used for controlling the driving assembly to drive the pressing plate to move, and the controller is further used for obtaining and feeding back the detection image so that a detector can know the detection image; according to the application, by simulating the compression process of the corrugated carton rocking cover, the performance detection of the corrugated carton after compression is realized.

Description

Technical Field

[0001] The present application relates to the technical field of carton detection, and in particular to a corrugated carton flap performance detection device. Background Art

[0002] With the rapid development of e-commerce and logistics industry, the market demand for corrugated boxes is becoming more and more vigorous. The intrinsic quality of corrugated boxes is related to the safety and protection of the packaged goods. They cannot be damaged during the entire storage, transportation and sales in order to realize the value of the goods.

[0003] However, in the actual product packaging use of corrugated cardboard boxes, the corrugated cardboard box flaps are often damaged due to external pressure, or the sealing tape breaks due to excessive rebound tension when sealing the box. Ultimately, the poor performance of the corrugated cardboard boxes themselves leads to a decline in their safety protection performance for the products, so there is room for improvement. Summary of the invention

[0004] In order to improve the problem that the safety protection of commodities is reduced due to the poor performance of the corrugated paper box itself, the present application provides a corrugated paper box swing cover performance testing device.

[0005] In the first aspect, the present application provides a corrugated cardboard box swing flap performance testing device, which adopts the following technical scheme: a corrugated cardboard box swing flap performance testing device, comprising a testing platform, a pressing plate and a driving assembly, wherein the testing platform is used for placing the corrugated cardboard box, and the driving assembly is used to drive the pressing plate to approach or move away from the swing flap of the corrugated cardboard box, and press the swing flap when approaching the swing flap; it also includes a controller and a visual detector, and the visual detector is electrically connected to the controller; the visual detector is used to detect the detection image of the swing flap after being pressed, and the controller is used to control the driving assembly to drive the pressing plate to move, and the controller is also used to obtain and feedback the detection image so that the inspection personnel can know it.

[0006] By adopting the above technical scheme, the driving component drives the pressure plate to apply pressure to the swing cover of the corrugated cardboard box, simulating the process of the corrugated cardboard box being subjected to pressure in the external environment, and the detection image of the swing cover after being pressed is obtained through the visual detector, and finally the detection image is fed back to the detection personnel through the controller, so that the detection personnel can more intuitively know the structural changes of the corrugated cardboard box after being pressed according to the detection image, and make adaptive improvements to the structure and material of the corrugated cardboard box to improve the safety protection performance of the corrugated cardboard box for the goods.

[0007] Preferably, the detection image includes a first image and a second image; the visual detector includes a bird's-eye view module and a side view module, the bird's-eye view module is located above the corrugated cardboard box on the detection table, so as to be used for taking a bird's-eye view shot to obtain a first image with a swing cover, and the side view module is located on one side of the corrugated cardboard box on the detection table, so as to be used for taking a picture from the side of the corrugated cardboard box to obtain a second image with the side of the corrugated cardboard box.

[0008] By adopting the above technical solution, it can be understood that the first image is a top view of the corrugated paper box, and the second image is a side view of the corrugated paper box. According to the second image, the bending direction of the swing cover after the swing cover is pressed and the pressure plate is released from the pressure on the swing cover (such as bending and rebounding in the direction away from the corrugated paper box, or further bending toward the bottom of the corrugated paper box) can be obtained; and according to the first image, the bending angle of the swing cover after the swing cover is pressed and the pressure plate is released from the pressure on the swing cover (such as the angle of bending and rebounding in the direction away from the corrugated paper box, or the angle of further bending toward the bottom of the corrugated paper box) can be obtained.

[0009] Preferably, the controller is used to control the visual detector to capture a detection image at a specified frequency when the pressure rod is out of contact with the rocker cover.

[0010] By adopting the above-mentioned technical scheme, the present application stipulates that the visual detector will perform high-frequency shooting under the control of the controller to obtain multiple detection images, so that the detection personnel can determine the structural change speed of the swing cover (such as the swing cover rebound speed) according to the changes of the swing cover in the aforementioned multiple detection images, and can also perform multiple pressure tests on the swing cover and obtain the influence of the number of pressure tests on the speed of structural change of the swing cover based on the detection images.

[0011] Preferably, the driving assembly includes a support frame, a pressure rod, a lifting member and a rotating member; the lifting member is used to drive the support frame to slide along the height direction of the corrugated box and be connected to the detection table, the end of the pressure plate is rotatably connected to the top of the support frame, the rotating member is used to drive the pressure plate to rotate relative to the support frame, and the pressure rod is arranged on the side of the pressure plate close to the corrugated box.

[0012] By adopting the above technical solution, the lifting member drives the support frame to rise and fall according to the height of the corrugated box, so that the rotation center of the rotational connection between the pressure plate and the support frame is located above the rocker cover. At this time, the rocker cover will be located on the rotation path of the pressure rod when it rotates with the pressure plate, so that the rocker cover can be pressed with the help of the pressure plate, simulating the process of applying external pressure to the rocker cover.

[0013] Preferably, the driving assembly further comprises a sliding member, and the sliding member is used to drive the pressure rod to slide along the length direction of the pressure plate to be connected to the side wall of the pressure plate.

[0014] By adopting the above technical scheme, by adjusting the position of the pressure rod relative to the pressure plate, the pressure process of the pressure rod on different positions of the swing cover can be simulated, so as to obtain the changes in the structural performance of the swing cover after the swing cover is compressed at different pressure positions, thereby improving the comprehensiveness of the swing cover performance detection, and the movement operation of the pressure rod relative to the pressure plate can also meet the pressure operation of the swing covers of corrugated boxes of different sizes.

[0015] Preferably, the pressure rod is provided with an extension rod; and further comprises an extension member, wherein the extension member is used for driving the extension rod to move towards a direction close to the swing cover or away from the swing cover.

[0016] By adopting the above technical solution, after the pressure rod rotates with the pressure plate and is pressed on the surface of the swing cover, the extension rod can be driven by the extension rod to move in the direction close to the swing cover, so as to further press the swing cover and expand the pressure range on the swing cover, thereby simulating the process of applying different amounts of pressure to the swing cover.

[0017] Preferably, the extension rod is slidably connected to the pressure rod in a direction perpendicular to the length direction of the pressure rod, and the extension member includes a rack, a gear and a motor. The gear is rotatably connected to the side wall of the pressure rod, the rack is meshed with the gear, and the rack is arranged on the extension rod, and the length direction of the rack is parallel to the sliding direction of the extension rod, and the motor driving end is connected to the rotation center of the gear to drive the gear to rotate.

[0018] By adopting the above technical solution, the motor drives the gear to rotate, and the meshing action between the gear and the rack is used to drive the extension rod to slide relative to the pressure rod, so that it approaches and presses the swing cover during the sliding process, thereby achieving further pressure on the swing cover.

[0019] Preferably, the extension rod is embedded in the side of the pressure rod facing the swing cover, and the extension member includes an airbag and an air supply component. The airbag is wrapped around the extension rod, and the air supply component is used to transport or extract gas to the airbag.

[0020] By adopting the above technical solution, gas is delivered into the airbag through the air supply component, so that the airbag swells to protrude from the side of the pressure rod facing the swing cover, thereby further pressing the swing cover with the help of the swollen airbag, thereby achieving further pressure on the swing cover.

[0021] Preferably, the pressure rod is rotatably connected to the support frame.

[0022] By adopting the above technical solution, the present application stipulates that the pressure rod is rotatably connected to the support frame, so that the direction of the extension rod relative to the rocker cover can be adjusted, thereby realizing the adjustment of the pressing direction of the extension rod when pressing the rocker cover.

[0023] In a second aspect, the present application discloses a method for detecting the performance of a corrugated paper box flap, comprising the following steps: Step 1: Select the box type, size and material for testing; Step 2: Apply pressure to the flap using the corrugated paper box flap performance testing device as described in the first aspect; Step 3: When the swing cover is under pressure, record the structural deformation of the swing cover after being under pressure.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The driving component drives the pressing plate to press the swing cover of the corrugated paper box to simulate the process of the corrugated paper box bearing the pressure in the external environment, and the visual detector obtains the detection image of the swing cover after being pressed, and finally the controller feeds back the detection image to the detection personnel, so that the detection personnel can more intuitively know the structural changes of the corrugated paper box after being pressed according to the detection image, and make adaptive improvements to the structure and material of the corrugated paper box to improve the safety protection performance of the corrugated paper box for the goods; 2. It can be understood that the first image is a top view of the corrugated cardboard box, and the second image is a side view of the corrugated cardboard box. According to the second image, the bending direction of the swing cover after the swing cover is compressed and the pressure plate is released from the pressure on the swing cover (such as bending and rebounding in the direction away from the corrugated cardboard box, or further bending toward the bottom of the corrugated cardboard box) can be obtained; and according to the first image, the bending angle of the swing cover after the swing cover is compressed and the pressure plate is released from the pressure on the swing cover (such as the angle of bending and rebounding in the direction away from the corrugated cardboard box, or the angle of further bending toward the bottom of the corrugated cardboard box) can be obtained, thereby improving the comprehensiveness of the detection of the compression of the swing cover of the corrugated cardboard box. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a corrugated paper box flap performance testing device disclosed in Example 1 of the present application.

[0026] Figure 2 This is a structural block diagram of the corrugated cardboard box flap performance detection device used in Example 1 of the present application.

[0027] Figure 3 yes Figure 1 Sectional view along AA direction.

[0028] Figure 4 yes Figure 1 Cross-sectional view along the BB axis.

[0029] Figure 5 It is a structural schematic diagram of a corrugated paper box flap performance testing device disclosed in Example 2 of the present application.

[0030] Figure 6 It is a cross-sectional view of Example 2 of the present application used to illustrate the structure of the extension piece.

[0031] Explanation of the accompanying drawings: 1. Testing table; 2. Pressing plate; 3. Driving assembly; 31. Support frame; 32. Pressing rod; 33. Lifting member; 34. Rotating member; 35. Sliding member; 351. Sliding block; 4. Controller; 5. Visual detector; 51. Overhead shooting module; 52. Side shooting module; 6. Position detector; 7. Extension member; 71. Gear; 72. Rack; 73. Motor; 74. Airbag; 75. Air supply member; 8. Extension rod; 9. Corrugated box; 91. Rocker cover. DETAILED DESCRIPTION

[0032] The following is combined with Figure 1-6 This application is described in further detail.

[0033] Example 1 Embodiment 1 of the present application discloses a corrugated paper box flap performance testing device. Figure 1 and Figure 2 The corrugated cardboard box swing cover performance testing equipment includes a testing platform 1, a pressing plate 2, a driving component 3, a controller 4 and a visual detector 5. A corrugated cardboard box 9 to be tested is placed on the testing platform 1, and the corrugated cardboard box 9 is open, and the swing cover 91 of the corrugated cardboard box 9 is used to open and close the open position of the corrugated cardboard box 9. The pressing plate 2 is located above the open part of the corrugated cardboard box 9, and the driving component 3 is controlled by the controller 4. The controller 4 is used to control the driving component 3 to drive the pressing plate 2 to press against the surface of the swing cover 91; the visual detector 5 is electrically connected to the controller 4, and the visual detector 5 is used to collect a test image with the swing cover 91 after the swing cover 91 is pressed, and the controller 4 is used to obtain and feed back the test image so that the test personnel can know it.

[0034] Reference Figure 1 and Figure 3 , the driving assembly 3 is located on the inspection platform 1 and on one side of the corrugated box 9. The driving assembly 3 includes a support frame 31, a pressure rod 32, a lifting member 33, a rotating member 34, and a sliding member 35; the lifting member 33 can be a combination structure of a motor screw, and the driving end of the lifting member 33 is connected to the support frame 31 to drive the support frame 31 to rise and fall in the vertical direction. The pressing plate 2 is rotatably connected to the top of the support frame 31, and the rotating member 34 is located at the top of the support frame. The rotating member 34 can specifically be a combination structure of a gear set consisting of a motor and two mutually meshing gears. By fixing one of the gears on the rotation center of the pressing plate 2 and the support frame 31, and fixing the other gear on the motor drive shaft, the pressing plate 2 can be driven to rotate relative to the support frame 31.

[0035] Reference Figure 1 and Figure 3The sliding member 35 includes a combination structure of a slider 351 and a motor screw. The motor screw combination structure is used to drive the slider 351 to slide along the length direction of the pressing plate 2 and connect to the pressing plate 2. The pressing rod 32 is rotatably connected to the slider 351, and the slider 351 is provided with a motor 73 for driving the pressing rod 32 to rotate relative to the slider 351. The pressing rod 32 is located on the side of the pressing plate 2 facing the corrugated paper box 9, and the rotation connection center of the pressing plate 2 and the support frame 31 can be moved by the lifting member 33 to a position where the rotation connection center is higher than the intersection position of the end of the swing cover 91 relative to the side of the corrugated paper box 9 (i.e., the position shown by the arrow C in the figure). At this time, the swing cover 91 will be located on the rotation path when the pressing rod 32 rotates with the pressing plate 2 in the rotation direction shown by the dotted arrow D in the figure, so that the pressing rod 32 can press the swing cover 91.

[0036] Reference Figure 2 , Figure 3 and Figure 4 , further comprising an extension member 7 and an extension rod 8, the extension rod 8 being arranged on the pressure rod 32, the extension member 7 being used to drive the extension rod 8 to move in a direction close to or away from the swing cover 91. A position detector 6 is arranged on the support frame 31, the position detector 6 being a distance measuring sensor for detecting the height of the rotation connection center of the pressing plate 2 and the support frame 31 relative to the detection platform 1, the controller 4 being used to control the lifting member 33 to drive the support frame 31 to rise and fall based on the height of the corrugated paper box 9, so that the rotation connection center of the pressing plate 2 and the support frame 31 is higher than the junction position of the end of the swing cover 91 relative to the side of the corrugated paper box 9 (i.e., the position indicated by the arrow C in the figure). Then the controller 4 is also used to control the rotating member 34 to drive the pressing plate 2 to rotate a specified angle (such as 90° in the embodiment of the present application) in the rotation direction indicated by the dotted arrow D in the figure, so that the swing cover 91 is pressed by the pressure rod 32 and bent and rotated relative to the side wall of the corrugated paper box 9. The controller 4 is also used to control the extension member 7 to drive the extension rod 8 to move a specified length toward the swing cover 91 after the pressure plate 2 rotates a specified angle, so as to use the extension rod 8 to further press the swing cover 91. The controller 4 is also used to control the extension rod 8 to pause for a specified time after the extension rod 8 moves a specified length, and then control the extension rod 8 to drive the extension rod 8 to move in the opposite direction for a specified length to reset, and control the rotating member 34 to drive the pressure plate 2 to reverse and reset at a specified angle.

[0037] The controller 4 is also used to control the visual detector 5 to shoot multiple detection images at a specified frequency when controlling the extension member 7 and the rotating member 34 to move in the opposite direction and reset, and each detection image corresponds to a shooting time. Each detection image includes a first image and a second image. The visual detector 5 includes a top-down shooting module 51 and a side-down shooting module 52. Both the top-down shooting module 51 and the side-down shooting module 52 can be cameras. The top-down shooting module 51 is located above the corrugated paper box 9 and the detection end is facing the open position of the corrugated paper box 9. The top-down shooting module 51 is used to shoot a first image with a swing cover 91 from a top-down perspective. The side-down shooting module 52 is located on one side of the corrugated paper box 9, and the detection end of the side-down shooting module 52 is facing the side of the corrugated paper box 9, so as to shoot a second image containing the top structure of the corrugated paper box 9. The first image can be understood as a top view of the corrugated paper box 9, and the second image can be understood as a side view of the corrugated paper box 9.

[0038] Reference Figure 3 and Figure 4 The extension member 7 includes a gear 71, a rack 72 and a motor 73. The gear 71 is rotatably connected to the side wall of the pressure rod 32. The rack 72 is meshed with the gear 71. The rack 72 is arranged on the extension rod 8 along the length direction of the extension rod 8. The extension rod 8 is inserted into the pressure rod 32 along the radial direction of the pressure rod 32.

[0039] Example 2 The difference between Example 2 of the present application and Example 1 is that: Figure 5 and Figure 6 The extension rod 8 is embedded in the side of the pressure rod 32 facing the swing cover 91, and the extension member 7 includes an airbag 74 and an air supply component 75. The airbag 74 is wrapped around the outer periphery of the extension rod 8. The air supply component 75 can specifically be an air pump. The air outlet of the air pump is connected to the airbag 74 through a pipeline. The airbag 74 is connected to an exhaust valve to realize inflation or deflating of the airbag 74 through the air supply component 75 and the exhaust valve. The airbag 74 is used to extend out of the pressure rod 32 after inflation and is used to press against the swing cover 91 first to achieve further pressure on the swing cover 91.

[0040] Example 3 The present application discloses a method for detecting the performance of a corrugated paper box flap, which comprises the following steps: Step 1: Select the box type, size and material for testing.

[0041] In practice, the box type selected is a common slotted box (RSC 0201) that accounts for 80% of the corrugated packaging usage. In order to prevent the swing cover from being difficult to fold and form when used in the automatic packaging line, resulting in jamming of the machine, the swing cover of the carton is cut at an angle, that is, the corner shown by arrow E in the figure.

[0042] In addition, in this embodiment, the size of the corrugated cardboard box used for testing is 370*275*480mm, and the material is a high-strength material: 200g / ㎡+180g / ㎡+200g / ㎡+120g / ㎡+120g / ㎡+230g / ㎡, BA flute.

[0043] And according to the different types of sub-horizontal lines of corrugated cardboard boxes, this application will separately test corrugated cardboard boxes with four different types of corrugated cardboard box indentation lines, namely high and low indentation lines, high and low concave and convex indentation lines, single to double indentation lines, and offset indentation lines.

[0044] Step 2: Use the corrugated cardboard box swing cover performance testing equipment as described in Example 1 to apply pressure to the swing cover; in implementation, the driving assembly 3 included in the corrugated cardboard box swing cover performance testing equipment as described in Example 1 is used to drive the pressure plate 2 to rotate, so that the pressure plate presses the swing cover 91 in a direction perpendicular to the swing cover by 90°, so that the swing cover 91 is bent relative to the box body, and the extension member 7 is used to drive the extension rod 8 to press the swing cover to apply pressure to the surface of the swing cover 91.

[0045] Step 3: When the swing cover is under pressure, record the structural deformation of the swing cover after being under pressure.

[0046] In practice, a force gauge can be embedded on the surface of the extension rod 8 and electrically connected to the controller to record the pressure applied to the swing cover 91 through the force gauge. After the driving assembly 3 drives the pressure plate 2 to reverse and reset, the visual detector 5 is used to detect the rebound of the swing cover 91, thereby finally realizing the detection of the pressure data after the swing cover is pressed and the detection of the rebound of the swing cover.

[0047] Specifically, this application is based on the above-mentioned corrugated box flap performance testing equipment, and the test results of corrugated boxes with four different corrugated box indentation lines, namely, high and low indentation lines, high and low concave and convex indentation lines, single-to-double indentation lines, and offset indentation lines, are as follows: The average compressive resistance values ​​of the above four different indentation lines are: 8646N, 8109N, 9601N, and 9074N respectively.

[0048] The compression strength values ​​of the indented lines cartons (high and low indented lines, high and low concave and convex indented lines) produced by the die-cutting and indenting process differ by 6%, and the compression strength values ​​of the high and low indented lines are better.

[0049] The compressive strength values ​​of the indented cartons (single to double indented lines, offset indented lines) produced by the corrugated cardboard production line differ by 5%, and the compressive strength value of the single to double indented lines is better.

[0050] From the perspective of easy flap forming and flap rebound force during sealing, cartons with high and low concave and convex indentation lines are better. From the perspective of carton flatness, no corner wrapping, and the lifting of sealing tape, cartons with high and low indentation lines and high and low concave and convex indentation lines are better; from the perspective of compressive strength after carton forming, cartons with single to double indentation lines have better compressive strength values.

[0051] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A corrugated box flap performance testing device, characterized by: The invention comprises a detection platform (1), a pressing plate (2) and a driving assembly (3), wherein the detection platform (1) is used for placing a corrugated paper box (9), and the driving assembly (3) is used for driving the pressing plate (2) to approach or move away from a swing cover (91) of the corrugated paper box (9), and to press the swing cover (91) when approaching the swing cover (91); the invention also comprises a controller (4) and a visual detector (5), wherein the visual detector (5) is electrically connected to the controller (4); the visual detector (5) is used for detecting a detection image of the swing cover (91) after being pressed, and the controller (4) is used for controlling the driving assembly (3) to drive the pressing plate (2) to move, and the controller (4) is also used for acquiring and feeding back the detection image so that the detection personnel can know it.

2. The corrugated paper box flap performance testing equipment according to claim 1 is characterized in that: The detection image comprises a first image and a second image; the visual detector (5) comprises a top-down shooting module (51) and a side-shooting module (52); the top-down shooting module (51) is located above the corrugated cardboard box (9) on the detection platform (1) to obtain a first image with a swing cover (91) by taking a top-down shot; the side-shooting module (52) is located on one side of the corrugated cardboard box (9) on the detection platform (1) to obtain a second image with a side portion of the corrugated cardboard box (9) by taking a shot from the side of the corrugated cardboard box (9).

3. The corrugated paper box flap performance testing equipment according to claim 2 is characterized in that: The controller (4) is used to control the visual detector (5) to capture a detection image at a specified frequency when the pressure rod (32) is out of contact with the swing cover (91).

4. The corrugated paper box flap performance testing device according to claim 1, characterized in that: The driving assembly (3) comprises a support frame (31), a pressure rod (32), a lifting member (33) and a rotating member (34); the lifting member (33) is used to drive the support frame (31) to slide along the height direction of the corrugated paper box (9) and connect to the detection platform (1); the end of the pressing plate (2) is rotatably connected to the top of the support frame (31); the rotating member (34) is used to drive the pressing plate (2) to rotate relative to the support frame; the pressure rod (32) is arranged on one side of the pressing plate (2) close to the corrugated paper box (9).

5. The corrugated paper box flap performance testing device according to claim 4, characterized in that: The driving assembly (3) further comprises a sliding member (35), wherein the sliding member (35) is used to drive the pressing rod (32) to slide along the length direction of the pressing plate (2) and to be connected to the side wall of the pressing plate (2).

6. The corrugated paper box flap performance testing device according to claim 4, characterized in that: The pressure rod (32) is provided with an extension rod (8); and also includes an extension member (7), wherein the extension member (7) is used to drive the extension rod (8) to move towards a direction close to the swing cover (91) or away from the swing cover (91).

7. The corrugated paper box flap performance testing device according to claim 6, characterized in that: The extension rod (8) is slidably connected to the pressure rod (32) in a direction perpendicular to the length direction of the pressure rod (32); the extension member (7) comprises a rack (72), a gear (71) and a motor (73); the gear (71) is rotatably connected to the side wall of the pressure rod (32); the rack (72) is meshed with the gear (71); the rack (72) is arranged on the extension rod (8); and the length direction of the rack (72) is parallel to the sliding direction of the extension rod (8); the driving end of the motor (73) is connected to the rotation center of the gear (71) to drive the gear (71) to rotate.

8. The corrugated paper box flap performance testing device according to claim 6, characterized in that: The extension rod (8) is embedded in one side of the pressure rod (32) facing the swing cover (91), and the extension member (7) comprises an air bag (74) and an air supply component (75). The air bag (74) is wrapped around the periphery of the extension rod (8), and the air supply component (75) is used to transport or extract gas to the air bag (74).

9. The corrugated paper box flap performance testing device according to claim 7 or 8, characterized in that: The pressure rod (32) is rotatably connected to the support frame (31).

10. A method for testing the performance of corrugated linear flaps, characterized in that: The steps include: Step 1: Select the box type, size and material for testing; Step 2: applying pressure to the flap using the corrugated paper box flap performance testing device as claimed in claim 6; Step 3: When the swing cover is under pressure, record the structural deformation of the swing cover after being under pressure.

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