Corrugated board glue adhesion detection equipment and detection method

Abstract

The application discloses a corrugated board glue adhesion detection equipment and a detection method, relates to the technical field of glue adhesion detection equipment, and comprises a paperboard adhesion tester, a pushing and pressing table, a positioning frame, a second peeling needle, a first peeling needle and an adjusting mechanism. The adjusting mechanism is arranged, the limiting assembly and the lifting assembly are matched with each other, the first peeling needle and the second peeling needle are vertically and synchronously arranged on the same horizontal line, the spacing between the first peeling needles and the second peeling needles is adjusted according to the gap of the corrugated board through the adjusting assembly, the corrugated board is sleeved with the first peeling needle and the second peeling needle, the second peeling needle is turned over and reset, then the electric push rod is started to make the pushing and pressing table cooperate with the positioning seat, the extrusion peeling frame pushes the first peeling needle to descend and peel the corrugated board, and the detected data can be displayed on the display screen through the controller, so that the detection efficiency of the glue adhesion of the corrugated board is further improved.

Description

Technical Field

[0001] This invention relates to the field of adhesive adhesion testing equipment, specifically to an adhesive adhesion testing device and method for corrugated cardboard. Background Technology

[0002] In the current production process, corrugated cardboard needs to be bonded together by applying glue. In order to prevent the corrugated cardboard from easily separating and falling apart, it is necessary to use a cardboard bonding tester to test the glue adhesion of the samples bonded with glue.

[0003] Existing corrugated cardboard bonding testers require two types of peeling needles, a peeling frame, and a positioning frame to support the corrugated cardboard. Under pressure from the tester, the peeling frame squeezes a peeling needle, causing the cardboard to peel off, thus testing the adhesive strength. However, existing peeling needles require manual insertion of multiple needles into the gaps of the corrugated cardboard, ensuring the needles intersect and are aligned horizontally. Excessive error can lead to inaccurate test data. Furthermore, testing the next sample involves repeatedly removing the needles, and the gaps between samples are inconsistent, making the testing process cumbersome. To improve the efficiency of testing corrugated cardboard adhesive strength, we propose a new corrugated cardboard adhesive strength testing device and method. Summary of the Invention

[0004] The purpose of this invention is to provide a device and method for detecting the adhesive adhesion of corrugated cardboard, in order to further improve the detection efficiency of adhesive adhesion of corrugated cardboard.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a corrugated cardboard adhesive adhesion testing device and testing method, comprising a cardboard bonding tester with a positioning seat fixedly connected to its top via a bracket, wherein a pushing platform penetrating into the interior of the cardboard bonding tester is provided at the top of the cardboard bonding tester and directly below the positioning seat, a positioning frame is provided on the upper surface of the pushing platform, a plurality of second peeling pins are arranged laterally at equal intervals on the upper surface of the positioning frame, a plurality of first peeling pins are arranged laterally at equal intervals below the plurality of second peeling pins, the plurality of first peeling pins and second peeling pins are arranged intersectingly, and an adjustment mechanism is provided at one end of the top of the positioning frame, the adjustment mechanism being used to adjust the spacing between the first peeling pins and the second peeling pins; The adjustment mechanism includes: an adjustment component, a limit component, and a lifting component; An adjustment component located at one end of the positioning frame is used to adjust the spacing between multiple first peeling pins and second peeling pins; A limiting component is set at one end of the adjusting component to enable multiple first peeling needles and second peeling needles to rotate synchronously; A lifting assembly connected to one end of the limiting assembly is used to synchronously lift and lower multiple first stripping needles.

[0006] As a further embodiment of the present invention: the adjustment component includes: An adjusting shaft is rotatably connected to one end of the positioning frame via a rotating shaft and a rotating groove. A knob is fixedly connected to the adjusting shaft on one outer wall of the positioning frame. Multiple movable sliders are equidistantly sleeved on the outer wall of the adjusting shaft. A positioning slider is integrally formed at the top of the inner wall of each movable slider. Two sets of arc-shaped grooves are symmetrically opened on the outer wall of the adjusting shaft and sleeved on the outer wall of the positioning slider. A spiral groove that communicates with the inner wall of the arc-shaped groove is opened at the bottom of the two sets of arc-shaped grooves on the adjusting shaft. The adjusting shaft is used to adjust the distance between the multiple movable sliders.

[0007] As a further embodiment of the present invention: the limiting component includes: Multiple first rotating rings and second rotating rings are equidistantly attached to the outer wall of one end of multiple movable sliders. The multiple first rotating rings and second rotating rings are arranged to cross each other. The outer wall of each first rotating ring and second rotating ring is connected to a limiting ring that is rotatably connected to the movable slider. The inner wall of each first rotating ring and second rotating ring is fitted with a limiting rotating rod. The limiting rotating rod is rotatably connected to the positioning frame through a rotating shaft and a rotating groove. The first rotating ring is fixedly connected to a second peeling needle. The limiting ring is used to limit the rotation of the first rotating ring, second rotating ring and movable slider.

[0008] As a further embodiment of the present invention: the lifting assembly includes: A limiting block is fixedly connected to the end of the second rotating ring away from the moving slider. A lifting slider that is fixedly connected to the first peeling needle is slidably connected to one end of the limiting block. A connecting shaft that extends through to the outer wall of the bottom end of the limiting block is fixedly connected to the bottom end of the lifting slider. A synchronous push plate is fixedly connected to the bottom end of the connecting shaft. The synchronous push plate, the connecting shaft, and the lifting slider are used for the synchronous lifting of multiple first peeling needles.

[0009] As a further embodiment of the present invention: the paperboard bonding tester is equipped with an electric push rod whose output end is fixedly connected to the pressing table, and a display screen is installed on the outer wall of one end of the paperboard bonding tester. The electric push rod and the display screen are both electrically connected to an external controller through wires.

[0010] As a further embodiment of the present invention: the outer wall of the end of the first stripping needle and the second stripping needle away from the adjustment mechanism is frustum-shaped, the outer diameter of the first stripping needle and the second stripping needle is equal, and a stripping frame is provided above the second stripping needle and the plurality of first stripping needles.

[0011] As a further aspect of the present invention: each set of arc-shaped slide grooves is composed of multiple sub-arc-shaped slide grooves, the arc of the multiple sub-arc-shaped slide grooves is longer as they are closer to another set of arc-shaped slide grooves, the length of the multiple spiral slide grooves is shortened as the arc of the arc-shaped slide grooves increases, and the inner walls of the spiral slide grooves and arc-shaped slide grooves match the outer walls of the positioning sliders.

[0012] As a further embodiment of the present invention: the inner walls of the first rotating ring and the second rotating ring are integrally formed with limit sliders, and the limit rotating rod is provided with a linear groove for the limit slider to slide laterally.

[0013] As a further embodiment of the present invention: the outer wall of the lifting slider is T-shaped, and the limiting block is provided with a movable groove for the connecting shaft and the lifting slider to slide up and down.

[0014] This invention also provides a method for testing the adhesive stickiness of corrugated cardboard, comprising the following steps: Step 1: Rotate the second stripping needle to drive the first rotating ring to flip around the limiting rod as the axis to a vertical position; Step 2: Push the synchronous push plate to move the connecting shaft along the inner wall of the limit block. The connecting shaft pushes the lifting slider so that the first peeling needle and the second peeling needle are on the same horizontal line. Step 3: Rotate the knob to drive the adjustment shaft to rotate. At this time, multiple moving sliders are guided by the positioning sliders in the corresponding arc-shaped slide grooves and spiral slide grooves. Through the limiting ring and the first rotating ring, multiple first peeling pins and second peeling pins are moved respectively, thereby adjusting the spacing between multiple first peeling pins and second peeling pins according to the gap of the corrugated cardboard. Step 4: After adjustment, connect the corrugated cardboard to the multiple first and second peeling pins; Step 5: Push the corrugated cardboard around the limiting rotating rod as the axis, driving multiple first peeling pins and second peeling pins to rotate until the second peeling pins contact the upper surface of the positioning frame; Step 6: Place the peeling frame on the upper surface of the multiple first peeling needles, and place the positioning frame on the upper surface of the pressing table; Step 7: Activate the electric push rod to push the positioning frame upward. When the peeling frame is blocked by the positioning seat, it pushes the first peeling pin to slide down along the inner wall of the limit block through the lifting slider until the corrugated cardboard is separated by the push of the first peeling pin and the limit of the second peeling pin.

[0015] Compared with the prior art, the beneficial effects of the present invention are: By setting an adjustment mechanism and cooperating with the limiting component and the lifting component, the first and second peeling needles can operate vertically synchronously and be on the same horizontal line. Then, the spacing between the multiple first and second peeling needles can be easily adjusted according to the gap of the corrugated cardboard. After adjustment, the corrugated cardboard is lowered vertically to engage with the first and second peeling needles. Then, the second peeling needle is flipped to reset. During this process, the first peeling needle cannot automatically reset due to the engagement limit of the corrugated cardboard. Then, the peeling frame is placed on the upper surface of the multiple first peeling needles, and the positioning frame is placed on the upper surface of the pressing table. The electric push rod is activated so that the pressing table cooperates with the positioning seat to squeeze the peeling frame and push the first peeling needles down to peel the corrugated cardboard. At the same time, the controller can display the detected data on the display screen, thereby further improving the detection efficiency of the adhesive adhesion of the corrugated cardboard. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic cross-sectional view of the positioning frame structure of the present invention; Figure 3 This is an exploded view of the adjustment mechanism of the present invention; Figure 4 This is a schematic diagram of the cross-sectional structure of the limiting block of the present invention; Figure 5 This is a schematic diagram of the spiral groove and arc-shaped groove structure of the present invention; Figure 6 For the present invention Figure 2 A magnified schematic diagram of the structure at point A in the diagram; Figure 7 For the present invention Figure 4 A magnified schematic diagram of the structure at point B in the diagram.

[0017] In the diagram: 1. Cardboard bonding tester; 2. Adjustment mechanism; 201. Limiting block; 202. Limiting rotating rod; 203. Knob; 204. Adjusting rotating shaft; 205. Moving slider; 206. Synchronous push plate; 207. Connecting shaft; 208. Spiral groove; 209. Limiting ring; 2010. First rotating ring; 2011. Limiting slider; 2012. Arc-shaped groove; 2013. Positioning slider; 2014. Lifting slider; 2015. Second rotating ring; 3. Pushing table; 4. Peeling frame; 5. Positioning seat; 6. Positioning frame; 7. First peeling pin; 8. Second peeling pin. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1 to 7 In this embodiment of the invention, a corrugated cardboard adhesive adhesion testing device and method includes a cardboard bonding tester 1 with a positioning seat 5 fixedly connected to its top via a bracket. A pressing platform 3, penetrating into the interior of the cardboard bonding tester 1, is provided at the top of the cardboard bonding tester 1 and directly below the positioning seat 5. A positioning frame 6 is provided on the upper surface of the pressing platform 3. Multiple second peeling pins 8 are arranged laterally at equal intervals on the upper surface of the positioning frame 6. Multiple first peeling pins 7 are arranged laterally at equal intervals below the multiple second peeling pins 8. The multiple first peeling pins 7 and second peeling pins 8 are arranged intersectingly. One end of the top of the positioning frame 6 is... An adjustment mechanism 2 is provided, which is used to adjust the distance between the first peeling needle 7 and the second peeling needle 8. An electric push rod with its output end fixedly connected to the push table 3 is installed inside the cardboard bonding tester 1. A display screen is installed on the outer wall of one end of the cardboard bonding tester 1. The electric push rod and the display screen are electrically connected to an external controller through wires. The outer wall of the end of the first peeling needle 7 and the second peeling needle 8 away from the adjustment mechanism 2 is truncated cone-shaped. The outer diameters of the first peeling needle 7 and the second peeling needle 8 are equal. A peeling frame 4 is provided on the upper surface of the second peeling needle 8, which contacts the upper surfaces of multiple first peeling needles 7. The adjusting mechanism 2 includes: an adjusting component, a limiting component, and a lifting component; An adjustment component located at one end of the top of the positioning frame 6 is used to adjust the spacing between multiple first peeling needles 7 and second peeling needles 8; A limiting component is provided at one end of the adjusting component to enable multiple first stripping needles 7 and second stripping needles 8 to rotate synchronously; The lifting assembly connected to one end of the limiting assembly is used to synchronously lift and lower multiple first stripping needles 7.

[0020] In this embodiment: When using this device, the first peeling needle 7 and the second peeling needle 8 can be operated vertically synchronously and placed on the same horizontal line through the cooperation of the limiting component and the lifting component. Then, the distance between the multiple first peeling needles 7 and the multiple second peeling needles 8 can be conveniently adjusted according to the gap of the corrugated cardboard by the adjusting component. After adjustment, the corrugated cardboard is lowered vertically to facilitate the connection of the outer walls of the first peeling needle 7 and the second peeling needle 8. Then, the second peeling needle 8 is flipped to reset. During this process, since the first peeling needle 7 cannot automatically reset under the connection limit of the corrugated cardboard, the first peeling needle 7 and the second peeling needle 8 can be kept on the same horizontal line. Then, the peeling frame 4 is placed on the upper surface of the multiple first peeling needles 7. Then, the positioning frame 6 is placed on the upper surface of the pressing table 3, and the electric push rod is activated to make the pressing table 3 rise. At this time, the positioning frame 6 rises synchronously under the push of the pressing table 3. When the peeling frame 4 is blocked by the positioning seat 5, it pushes the first peeling pin 7 to descend. At this time, the first peeling pin 7 descends through the lifting assembly. During this process, the corrugated cardboard gradually deforms under the push of the first peeling pin 7 and the limit of the second peeling pin 8 until separation occurs. At the same time, the controller can display the detected data on the display screen, thereby further improving the detection efficiency of the adhesive stickiness of the corrugated cardboard.

[0021] In a preferred embodiment of the present invention, the adjustment component includes: An adjusting shaft 204 is rotatably connected to one end of the top of the positioning frame 6 via a rotating shaft and a rotating groove. A knob 203 is fixedly connected to the adjusting shaft 204 on one side of the outer wall of the positioning frame 6. Multiple movable sliders 205 are equidistantly sleeved on the outer wall of the adjusting shaft 204. A positioning slider 2013 is integrally formed on the top of the inner wall of the movable slider 205. Two sets of arc-shaped grooves 2012 are symmetrically opened on the outer wall of the adjusting shaft 204 and sleeved on the outer wall of the positioning slider 2013. A spiral groove 208 that communicates with the inner wall of the arc-shaped groove 2012 is opened at the bottom of the two sets of arc-shaped grooves 2012. The adjusting shaft 204 is used to adjust the distance between the multiple movable sliders 205. The limit components include: Multiple first rotating rings 2010 and second rotating rings 2015 are equidistantly attached to the outer wall of one end of multiple movable sliders 205. The multiple first rotating rings 2010 and second rotating rings 2015 are arranged intersectingly. The outer wall of each first rotating ring 2010 and second rotating ring 2015 is connected to a limiting ring 209 that is rotatably connected to the movable slider 205. The inner wall of each first rotating ring 2010 and second rotating ring 2015 is sleeved with a limiting rotating rod 202. The limiting rotating rod 202 is rotatably connected to the positioning frame 6 through a rotating shaft and a rotating groove. The first rotating ring 2010 is fixedly connected to the second peeling needle 8. The inner wall of each first rotating ring 2010 and second rotating ring 2015 is integrally formed with a limiting slider 2011. The limiting rotating rod 202 is provided with a straight groove for the limiting slider 2011 to slide laterally. The limiting ring 209 is used to limit the rotation of the first rotating ring 2010, second rotating ring 2015 and movable slider 205. The lifting assembly includes: A limiting block 201 is fixedly connected to the end of the second rotating ring 2015 away from the moving slider 205. A lifting slider 2014, which is fixedly connected to the first peeling needle 7, is slidably connected up and down inside one end of the limiting block 201. A connecting shaft 207, which passes through to the outer wall of the bottom end of the limiting block 201, is fixedly connected to the bottom end of the lifting slider 2014. A synchronous push plate 206 is fixedly connected to the bottom end of the connecting shaft 207. The synchronous push plate 206, the connecting shaft 207, and the lifting slider 2014 are used for the synchronous lifting of multiple first peeling needles 7.

[0022] In this embodiment: by rotating the second peeling needle 8, the first rotating ring 2010 is driven to rotate around the limiting rotating rod 202 as the axis. At this time, the first rotating ring 2010 drives the limiting rotating rod 202 to rotate through the limiting slider 2011. At the same time, the limiting rotating rod 202 drives the second rotating ring 2015 to rotate through the limiting slider 2011. At this time, the second rotating ring 2015 drives the first peeling needle 7 to rotate synchronously through the limiting block 201 and the lifting slider 2014. At the same time, the first rotating ring 2010 and the second rotating ring 2015 both rotate along the inner wall of the moving slider 205 through the limiting ring 209 until the second peeling needle 8 stops rotating under the obstruction of the moving slider 205. Thus, multiple first peeling needles 7 and second peeling needles 8 can be operated vertically synchronously. Then push the synchronous push plate 206 to make the connecting shaft 207 move along the inner wall of the limiting block 201. At this time, the lifting slider 2014, under the push of the connecting shaft 207, drives the first peeling needle 7 to make synchronous displacement, so that the first peeling needle 7 and the second peeling needle 8 are on the same horizontal line. Then, rotating the knob 203 drives the adjusting shaft 204 to rotate. At this time, multiple arc-shaped grooves 2012 rotate along the outer wall of the positioning slider 2013. When the positioning slider 2013 disengages from the arc-shaped groove 2012 and enters the end of the spiral groove 208, the positioning slider 2013, guided by the spiral groove 208, drives the moving slider 205 to move. At the same time, the first rotating ring 2010, driven by the moving slider 205 through the limiting ring 209, drives the second peeling needle 8 to move. When the second rotating ring 2015, driven by the moving slider 205 through the limiting ring 209, drives the first peeling needle 7 to move through the limiting block 201 and the lifting slider 2014, the distance between multiple first peeling needles 7 and second peeling needles 8 can be conveniently adjusted according to the gap of the corrugated cardboard. After the adjustment is completed, the corrugated cardboard is lowered vertically to facilitate the connection of the outer walls of the first peeling needle 7 and the second peeling needle 8. Then, the second peeling needle 8 is rotated and reset around the limit rotating rod 202. At the same time, the peeling frame 4 is placed on the upper surface of the multiple first peeling needles 7. Then, the positioning frame 6 is placed on the upper surface of the pressing table 3, and the electric push rod is activated to make the pressing table 3 rise. At this time, the positioning frame 6 rises synchronously under the push of the pressing table 3. When the peeling frame 4 is blocked by the positioning seat 5, it pushes the first peeling pin 7 to descend. At this time, the first peeling pin 7 slides down along the inner wall of the limiting block 201 via the lifting slider 2014. At the same time, the connecting shaft 207 pushes the synchronous push plate 206 down under the push of the lifting slider 2014. During this process, the corrugated cardboard gradually deforms under the push of the first peeling pin 7 and the limitation of the second peeling pin 8 until separation occurs. At the same time, the detected data can be displayed on the display screen through the controller, thereby further improving the detection efficiency of the adhesive stickiness of the corrugated cardboard.

[0023] In a preferred embodiment of the present invention, each set of arc-shaped slide grooves 2012 is composed of multiple sub-arc-shaped slide grooves. The arc of the multiple sub-arc-shaped slide grooves is longer as it is closer to another set of arc-shaped slide grooves 2012. The length of the multiple spiral slide grooves 208 is shortened as the arc of the arc-shaped slide grooves 2012 increases. The inner walls of the spiral slide grooves 208 and the arc-shaped slide grooves 2012 match the outer wall of the positioning slider 2013.

[0024] In this embodiment, multiple arc-shaped slides 2012 with different curvatures allow multiple movable sliders 205 to move sequentially under the guidance of the positioning slider 2013 and the spiral slide 208, so as to adjust the spacing between the multiple movable sliders 205.

[0025] In a preferred embodiment of the present invention, the outer wall of the lifting slider 2014 is T-shaped, and the limiting block 201 is provided with a movable groove for the connecting shaft 207 and the lifting slider 2014 to slide up and down.

[0026] In this embodiment, the T-shaped outer wall and the movable slide groove cooperate to allow the lifting slider 2014 to lift and limit the first stripping needle 7 along the inner wall of the limiting block 201.

[0027] This invention also provides a method for testing the adhesive stickiness of corrugated cardboard, comprising the following steps: Step 1: Rotate the second stripping needle 8 to drive the first rotating ring 2010 to flip around the limiting rotating rod 202 to a vertical position; Step 2: Push the synchronous push plate 206 to move the connecting shaft 207 along the inner wall of the limiting block 201. The connecting shaft 207 pushes the lifting slider 2014 so that the first stripping needle 7 and the second stripping needle 8 are on the same horizontal line. Step 3: Rotate the knob 203 to drive the adjusting shaft 204 to rotate. At this time, multiple moving sliders 205, guided by the positioning slider 2013 under the guidance of the corresponding arc-shaped slide groove 2012 and spiral slide groove 208, drive multiple first peeling needles 7 and second peeling needles 8 to move through the limiting ring 209 and the first rotating ring 2010 respectively, thereby adjusting the spacing between multiple first peeling needles 7 and second peeling needles 8 according to the gap of the corrugated cardboard. Step 4: After adjustment, attach the corrugated cardboard to the multiple first peeling pins 7 and second peeling pins 8. Step 5: Push the corrugated cardboard around the limiting rotating rod 202 as the axis, driving multiple first peeling pins 7 and second peeling pins 8 to rotate until the second peeling pins 8 contact the upper surface of the positioning frame 6; Step 6: Place the peeling frame 4 on the upper surface of the plurality of first peeling needles 7, and place the positioning frame 6 on the upper surface of the pressing table 3; Step 7: Activate the electric push rod to push the positioning frame 6 upward with the push table 3. When the peeling frame 4 is blocked by the positioning seat 5, it pushes the first peeling needle 7 to slide down along the inner wall of the limit block 201 through the lifting slider 2014 until the corrugated cardboard is separated under the push of the first peeling needle 7 and the limit of the second peeling needle 8.

[0028] The working principle of this invention is as follows: When using this device, the first rotating ring 2010 is rotated around the limiting rotating rod 202 by rotating the second peeling needle 8. At this time, the first rotating ring 2010 drives the limiting rotating rod 202 to rotate through the limiting slider 2011. At the same time, the limiting rotating rod 202 drives the second rotating ring 2015 to rotate through the limiting slider 2011. At this time, the second rotating ring 2015 drives the first peeling needle 7 to rotate synchronously through the limiting block 201 and the lifting slider 2014. At the same time, the first rotating ring 2010 and the second rotating ring 2015 rotate along the inner wall of the moving slider 205 through the limiting ring 209 until the second peeling needle 8 stops rotating under the obstruction of the moving slider 205. Thus, multiple first peeling needles 7 and second peeling needles 8 can be operated vertically synchronously. Then push the synchronous push plate 206 to make the connecting shaft 207 move along the inner wall of the limiting block 201. At this time, the lifting slider 2014, under the push of the connecting shaft 207, drives the first peeling needle 7 to make synchronous displacement, so that the first peeling needle 7 and the second peeling needle 8 are on the same horizontal line. Then, rotating the knob 203 drives the adjusting shaft 204 to rotate. At this time, multiple arc-shaped grooves 2012 rotate along the outer wall of the positioning slider 2013. When the positioning slider 2013 disengages from the arc-shaped groove 2012 and enters the end of the spiral groove 208, the positioning slider 2013, guided by the spiral groove 208, drives the moving slider 205 to move. At the same time, the first rotating ring 2010, driven by the moving slider 205 through the limiting ring 209, drives the second peeling needle 8 to move. When the second rotating ring 2015, driven by the moving slider 205 through the limiting ring 209, drives the first peeling needle 7 to move through the limiting block 201 and the lifting slider 2014, the distance between multiple first peeling needles 7 and second peeling needles 8 can be conveniently adjusted according to the gap of the corrugated cardboard. After adjustment, the corrugated cardboard is lowered vertically to facilitate the connection of the outer walls of the first peeling needle 7 and the second peeling needle 8. Then, the second peeling needle 8 is rotated and reset around the limit rotating rod 202. During this process, since the first peeling needle 7 cannot be automatically reset under the connection limit of the corrugated cardboard, the first peeling needle 7 and the second peeling needle 8 are kept on the same horizontal line. Then, the peeling frame 4 is placed on the upper surface of the multiple first peeling needles 7. Then, the positioning frame 6 is placed on the upper surface of the pressing table 3, and the electric push rod is activated to make the pressing table 3 rise. At this time, the positioning frame 6 rises synchronously under the push of the pressing table 3. When the peeling frame 4 is blocked by the positioning seat 5, it pushes the first peeling pin 7 to descend. At this time, the first peeling pin 7 slides down along the inner wall of the limiting block 201 via the lifting slider 2014. At the same time, the connecting shaft 207 pushes the synchronous push plate 206 down under the push of the lifting slider 2014. During this process, the corrugated cardboard gradually deforms under the push of the first peeling pin 7 and the limitation of the second peeling pin 8 until separation occurs. At the same time, the detected data can be displayed on the display screen through the controller, thereby further improving the detection efficiency of the adhesive stickiness of the corrugated cardboard.

[0029] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A corrugated cardboard adhesive adhesion testing device, comprising a cardboard bonding tester (1) with a positioning seat (5) fixedly connected to its top via a bracket, wherein a pressing platform (3) penetrating into the cardboard bonding tester (1) is provided at the top of the cardboard bonding tester (1) and directly below the positioning seat (5), a positioning frame (6) is provided on the upper surface of the pressing platform (3), a plurality of second peeling needles (8) are arranged laterally at equal intervals on the upper surface of the positioning frame (6), a plurality of first peeling needles (7) are arranged laterally at equal intervals below the plurality of second peeling needles (8), and the plurality of first peeling needles (7) and second peeling needles (8) are arranged intersectingly, characterized in that, An adjustment mechanism (2) is provided at one end of the top of the positioning frame (6). The adjustment mechanism (2) is used to adjust the distance between the first stripping needle (7) and the second stripping needle (8). The adjustment mechanism (2) includes: an adjustment component, a limit component, and a lifting component; An adjustment component is provided at one end of the top of the positioning frame (6) for adjusting the spacing between multiple first peeling needles (7) and second peeling needles (8); A limiting component is provided at one end of the adjusting component to enable multiple first stripping needles (7) and second stripping needles (8) to rotate synchronously; A lifting assembly connected to one end of the limiting assembly is used to synchronously lift and lower multiple first stripping needles (7); The adjustment component includes: An adjusting shaft (204) is rotatably connected to one end of the top of the positioning frame (6) via a rotating shaft and a rotating groove. A knob (203) is fixedly connected to the adjusting shaft (204) on one side of the outer wall of the positioning frame (6). Multiple movable sliders (205) are equidistantly sleeved on the outer wall of the adjusting shaft (204). A positioning slider (2013) is integrally formed at the top of the inner wall of the movable slider (205). Two sets of arc-shaped grooves (2012) are symmetrically opened on the outer wall of the adjusting shaft (204) and sleeved on the outer wall of the positioning slider (2013). A spiral groove (208) that communicates with the inner wall of the arc-shaped groove (2012) is opened at the bottom end of the two sets of arc-shaped grooves (2012). The adjusting shaft (204) is used to adjust the distance between the multiple movable sliders (205). The limiting component includes: Multiple first rotating rings (2010) and second rotating rings (2015) are equidistantly attached to the outer wall of one end of multiple movable sliders (205). The multiple first rotating rings (2010) and second rotating rings (2015) are arranged intersecting each other. The outer wall of each of the first rotating rings (2010) and second rotating rings (2015) is connected to a limiting ring (209) that is rotatably connected to the movable slider (205). The inner wall of the first rotating rings (2010) and second rotating rings (2015) is fitted with a limiting rotating rod (202). The limiting rotating rod (202) is rotatably connected to the positioning frame (6) through a rotating shaft and a rotating groove. The first rotating ring (2010) is fixedly connected to the second peeling needle (8). The limiting ring (209) is used to limit the rotation of the first rotating rings (2010) and second rotating rings (2015) and the movable slider (205).

2. The corrugated cardboard adhesive adhesion testing device according to claim 1, characterized in that, The lifting assembly includes: A limiting block (201) is fixedly connected to the end of the second rotating ring (2015) away from the moving slider (205). A lifting slider (2014) is slidably connected to the first peeling needle (7) inside one end of the limiting block (201). A connecting shaft (207) is fixedly connected to the bottom end of the lifting slider (2014) and extends to the outer wall of the bottom end of the limiting block (201). A synchronous push plate (206) is fixedly connected to the bottom end of the connecting shaft (207). The synchronous push plate (206), the connecting shaft (207), and the lifting slider (2014) are used for the synchronous lifting of multiple first peeling needles (7).

3. The corrugated cardboard adhesive adhesion testing device according to claim 2, characterized in that, The cardboard bonding tester (1) is equipped with an electric push rod whose output end is fixedly connected to the push table (3). A display screen is installed on the outer wall of one end of the cardboard bonding tester (1). The electric push rod and the display screen are electrically connected to an external controller through wires.

4. The corrugated cardboard adhesive adhesion testing device according to claim 1, characterized in that, The outer wall of the first peeling needle (7) and the second peeling needle (8) away from the adjustment mechanism (2) is frustum-shaped. The outer diameters of the first peeling needle (7) and the second peeling needle (8) are equal. A peeling frame (4) is provided above the second peeling needle (8) and the plurality of first peeling needles (7).

5. The corrugated cardboard adhesive adhesion testing device according to claim 1, characterized in that, Each set of arc-shaped slides (2012) consists of multiple sub-arc-shaped slides. The arc of the multiple sub-arc-shaped slides is longer as it gets closer to another set of arc-shaped slides (2012). The length of the multiple spiral slides (208) decreases as the arc of the arc-shaped slides (2012) increases. The inner walls of the spiral slides (208) and the arc-shaped slides (2012) match the outer wall of the positioning slider (2013).

6. The corrugated cardboard adhesive adhesion testing device according to claim 1, characterized in that, The inner walls of the first rotating ring (2010) and the second rotating ring (2015) are integrally formed with a limiting slider (2011), and the limiting rotating rod (202) is provided with a linear groove for the limiting slider (2011) to slide laterally.

7. The corrugated cardboard adhesive adhesion testing device according to claim 2, characterized in that, The outer wall of the lifting slider (2014) is T-shaped, and the limiting block (201) is provided with a sliding groove for the connecting shaft (207) and the lifting slider (2014) to slide up and down.

8. A method for testing the adhesive adhesion of corrugated cardboard, used in the adhesive adhesion testing equipment for corrugated cardboard as described in claim 3, characterized in that, Includes the following steps: Step 1: Rotate the second stripping needle (8) to drive the first rotating ring (2010) to rotate around the limiting rotating rod (202) to the vertical position; Step 2: Push the synchronous push plate (206) to move the connecting shaft (207) along the inner wall of the limiting block (201). The connecting shaft (207) pushes the lifting slider (2014) so ​​that the first stripping needle (7) and the second stripping needle (8) are on the same horizontal line. Step 3: Rotate the knob (203) to drive the adjustment shaft (204) to rotate. At this time, multiple moving sliders (205) are guided by the positioning slider (2013) under the corresponding arc-shaped slide groove (2012) and spiral slide groove (208), and driven by the limiting ring (209) and the first rotating ring (2010) to move multiple first peeling needles (7) and second peeling needles (8) respectively, so as to adjust the distance between multiple first peeling needles (7) and second peeling needles (8) according to the gap of the corrugated cardboard. Step 4: After adjustment, attach the corrugated cardboard to the multiple first peeling pins (7) and second peeling pins (8); Step 5: Push the corrugated cardboard around the limiting rotating rod (202) as the axis, driving multiple first peeling needles (7) and second peeling needles (8) to rotate until the second peeling needles (8) come into contact with the upper surface of the positioning frame (6); Step 6: Place the peeling frame (4) on the upper surface of the plurality of first peeling needles (7) and place the positioning frame (6) on the upper surface of the pressing table (3); Step 7: Start the electric push rod to make the push table (3) push the positioning frame (6) to rise. When the peeling frame (4) is blocked by the positioning seat (5), it pushes the first peeling needle (7) to slide down along the inner wall of the limit block (201) through the lifting slider (2014) until the corrugated cardboard is separated under the push of the first peeling needle (7) and the limit of the second peeling needle (8).

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