A detection device and detection method for production of degradable paperboard

Abstract

The invention provides a detection device and a detection method for the production of degradable paperboard, which relate to the technical field of corrugated paperboard detection, and comprise a chassis, wherein a detection mechanism, a distance measuring mechanism and a positioning mechanism are arranged on the surface of the chassis, wherein the detection mechanism comprises a sliding frame, and a plurality of positioning cylinders are arranged on the surface of the sliding frame. The invention arranges the detection mechanism, and the airflow in the connecting pipe enters the nozzle from the through hole, and inflates the plurality of interlayers inside the corrugated paper, and the air tightness of the plurality of interlayers inside the corrugated paper is detected according to the air pressure sensor, and the sliding frame can be driven to move by the arranged second cylinder to push the nozzle into the paperboard interlayer, and the mounting frame can be driven to move by the first cylinder, thereby driving the positioning rod to move toward the center of the interlayer inside the paperboard, so that the air pressure sensor arranged at the end of the positioning rod can detect the air pressure at different positions in the paperboard interlayer, thereby improving the detection effect.

Description

Technical Field

[0001] The invention relates to the technical field of corrugated paperboard detection, and in particular to a detection device and a detection method for producing degradable paperboard. Background Art

[0002] Degradable cardboard is an environmentally friendly cardboard, also known as biodegradable cardboard. In actual production and use, corrugated cardboard is usually used. Due to the relationship between humidity, temperature, adhesive thickness, tension and relative humidity and cardboard quality, the corrugated cardboard production line often produces cardboard with uneven interior or even damage in some places. At this time, it is necessary to test the product during the production process.

[0003] When the existing detection device detects the quality of corrugated cardboard, the integrity of the corrugated paper is judged by observing the surface of the corrugated paper. However, the corrugated paper is provided with multiple layers of interlayers inside. When the inside is damaged and the external cracks are small, it cannot be easily detected from the surface. In the prior art, gas is introduced into the inside of the cardboard, and then the airtightness is tested, and a sealing plate is provided on the outside. However, since the cardboard has a certain softness, the sealing plate cannot fit well on the edge of the cardboard, and the injected airflow easily overflows, affecting the detection result. At the same time, when air is injected into the interlayer inside the cardboard, the inside of the cardboard is hit by the airflow, which will cause the cardboard to deviate, resulting in affecting the detection result when the flatness of the inside is tested. For this reason, we propose a detection device and a detection method for the production of degradable cardboard. Summary of the invention

[0004] The purpose of the present invention is to solve the above problems and to propose a detection device and a detection method for the production of degradable paperboard.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a detection device for the production of degradable cardboard, comprising a chassis, a detection mechanism, a distance measuring mechanism and a positioning mechanism are arranged on the surface of the chassis, the detection mechanism comprises a sliding frame, a plurality of positioning cylinders are arranged on the surface of the sliding frame, a nozzle is arranged on the surface of the plurality of positioning cylinders, a positioning rod is arranged inside the plurality of positioning cylinders, a connecting pipe is arranged on the surfaces of the plurality of positioning cylinders, a rotating cylinder is rotatably connected to the surfaces of the plurality of positioning cylinders through bearings, a plurality of rotating blades are arranged on the surfaces of the plurality of rotating cylinders, a through hole for connecting the nozzle is opened on the surfaces of the plurality of positioning cylinders, an air pressure sensor is arranged on the surfaces of the plurality of positioning rods, a connecting cylinder is installed on the surfaces of the plurality of nozzles, a connecting frame is arranged on the surfaces of the plurality of connecting cylinders, an air bag is arranged on the surfaces of the plurality of connecting frames, and a plurality of air inlet holes are opened on the surfaces of the plurality of connecting cylinders.

[0006] Preferably, the distance measuring mechanism includes a mounting frame, and the plurality of positioning rods are rotatably connected to the mounting frame via bearings, the surfaces of the plurality of rotating cylinders are provided with first teeth, the surfaces of the plurality of positioning rods are provided with second teeth, the plurality of first teeth are meshingly connected with the second teeth, the surfaces of the plurality of positioning rods are provided with infrared detectors, and the mounting frame can drive the positioning rods to move when it moves, and the first teeth are always meshingly connected with the second teeth, so that the rotating cylinder can drive the second teeth to rotate when it rotates, thereby driving the positioning rods to rotate, and the rotating positioning rods drive the infrared detector to rotate, which is convenient for measuring the distance of the interior, thereby detecting the flatness of the interior.

[0007] Preferably, the nozzle is mounted on a sliding frame, and the connecting frame is mounted on the surface of the sliding frame, and the provided sliding frame can support the nozzle.

[0008] Preferably, a workbench is provided on the surface of the chassis, and a first cylinder and a second cylinder are installed on the surface of the workbench, the output end of the first cylinder is fixedly connected to the mounting frame, and the output end of the second cylinder is fixedly connected to the sliding frame, the first cylinder can drive the mounting frame to move, and the second cylinder can drive the sliding frame to support.

[0009] Preferably, the positioning mechanism includes a support frame, a plurality of support tubes are arranged on the surface of the support frame, suction cups are arranged on the surfaces of the plurality of support tubes, an exhaust pipe is arranged in communication with the lower surface of the support frame, an air pump is arranged on the lower surface of the workbench, an air inlet end of the air pump is connected to the exhaust pipe, and when the air pump is arranged and air is exhausted, the cardboard can be adsorbed on top of the suction cup.

[0010] Preferably, a plurality of the connecting tubes are connected on their surfaces with a diverter tube, and a gas supply hose is connected on the surface of the diverter tube. The diverter tube can divert the airflow, so as to facilitate the gas transportation to the plurality of interlayers.

[0011] Preferably, an air inlet pipe is provided on the surface of the air supply hose, and the air inlet pipe is connected to the air outlet end of the air pump. The provided air inlet pipe can transport the gas pumped out by the air pump.

[0012] Preferably, a support plate is provided on the surface of the workbench, and the air supply hose and the air intake pipe are installed on the support plate, and the support plate can support the air supply hose and the air intake pipe.

[0013] Preferably, a plurality of the diverter pipes are mounted on a sliding frame, the rotating blades are movably connected to the positioning cylinder, and the rotating blades are arranged in contact with the positioning cylinder, which can effectively reduce air leakage.

[0014] A method for detecting the production of degradable paperboard comprises the following steps:

[0015] S1: Place the cardboard on top of multiple suction cups.

[0016] S2: Start the first cylinders on both sides of the cardboard to drive the sliding frame to move toward the cardboard and press against the cardboard, start the air pump to adsorb the cardboard on the suction cup, and blow air into the inside of the cardboard to check the air tightness. According to the value detected by the air pressure sensor, determine whether the cardboard is damaged.

[0017] S3: During the blowing process of S2, the second cylinders on both sides of the paperboard are started to drive the mounting frame to move toward the paperboard position, and the infrared detector on the positioning rod is used to measure the distance inside the paperboard to determine the flatness of the inside of the paperboard.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are:

[0019] 1. The present invention proposes a detection device and a detection method for the production of degradable cardboard. The detection mechanism is set up, and an air pump is used to pump air into an air inlet pipe, and the air in the air inlet pipe enters an air supply hose, and the air in the air supply hose enters a diverter pipe, and the air in the diverter pipe enters a connecting pipe. The air in the connecting pipe enters a nozzle from a through hole and inflates multiple interlayers inside the corrugated paper. The air tightness of the multiple interlayers inside the corrugated paper is detected according to an air pressure sensor. The second cylinder can drive the sliding frame to move and push the nozzle into the cardboard interlayer. The first cylinder can drive the mounting frame to move, thereby driving the positioning rod to move toward the center of the interlayer inside the cardboard, so that the air pressure sensor set at the end of the positioning rod can detect the air pressure at different positions in the cardboard interlayer, thereby improving the detection effect.

[0020] 2. The present invention proposes a detection device and a detection method for the production of degradable cardboard. When the air flow injects gas into the cardboard interlayer from the nozzle, the gas can enter the connecting frame from the air inlet hole and enter the air bag. The air bag expands and bulges. At this time, it can fit the edge of the cardboard interlayer, effectively avoiding the overflow of the air flow, making the internal interlayer of the cardboard completely sealed, and improving the accuracy of the air pressure sensor during detection.

[0021] 3. The present invention proposes a detection device and a detection method for the production of degradable cardboard. During the process of air tightness detection on the inside of the cardboard, the first cylinder can drive the mounting frame to move, and the positioning rod can enter the inside of the cardboard interlayer. At the same time, the laser detector at the end of the positioning rod can be driven to enter the inside of the interlayer. The laser detector can be continuously moved to perform flatness detection on different positions inside the interlayer, thereby increasing the detection range.

[0022] 4. The present invention proposes a detection device and a detection method for the production of degradable cardboard. When air is injected into the inside of the cardboard, air is pumped into the air inlet pipe through an air pump, and the air enters the inside of the positioning cylinder from the connecting pipe. At this time, the air enters vertically, which can push the rotating blades to rotate, thereby driving the rotating cylinder to rotate. Through the mutual cooperation of the first teeth and the second teeth, the positioning rod can be driven to rotate, so that the laser detector can rotate. At the same time, the laser detector moves in the interlayer, so that the flatness of the interlayer can be fully detected. At the same time, the air pressure sensor at the end of the positioning rod rotates, so that the accuracy of air pressure detection can be improved.

[0023] 5. The present invention proposes a detection device and a detection method for the production of degradable cardboard. When the air pump extracts gas for air tightness detection, the air pump pumps air into the air inlet pipe and extracts air near the suction cup, so that negative pressure is formed in the suction cup, so that the cardboard can be stably adsorbed on the suction cup, avoiding the cardboard from being offset when the inside of the cardboard is hit by the airflow, thereby reducing the impact on the internal flatness detection and improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 A three-dimensional structural schematic diagram of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0025] Figure 2 A schematic diagram of the internal structure of a chassis of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0026] Figure 3 This is a partial upward structural schematic diagram of a workbench of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0027] Figure 4 A schematic diagram of a partial top view of a support frame of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0028] Figure 5 A partial side structural schematic diagram of a mounting frame of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0029] Figure 6 A schematic diagram of the partial structure of a connecting frame of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0030] Figure 7 A schematic diagram of the partial structure of a shunt pipe of a detection device and a detection method for the production of degradable paperboard proposed by the present invention;

[0031] Figure 8 for Figure 7 A schematic diagram of the partially enlarged structure at center A;

[0032] Fig. 9 The present invention provides a partial structural schematic diagram of an air pressure sensor for a detection device and a detection method for the production of degradable paperboard.

[0033] Legend: 1. Chassis; 2. Detection mechanism; 201. Sliding frame; 202. Positioning cylinder; 203. Nozzle; 204. Positioning rod; 205. Connecting pipe; 206. Rotating cylinder; 207. Rotating blade; 208. Air pressure sensor; 209. Connecting cylinder; 210. Connecting frame; 211. Air bag; 3. Distance measuring mechanism; 301. Mounting frame; 302. First tooth; 303. Second tooth; 304. Infrared detector; 4. Positioning mechanism; 401. Support tube; 402. Suction cup; 403. Exhaust pipe; 404. Air pump; 405. Support frame; 8. Workbench; 9. First cylinder; 10. Second cylinder; 11. Diverter pipe; 12. Air supply hose; 13. Intake pipe; 14. Support plate. DETAILED DESCRIPTION

[0034] In order to more clearly understand the above-mentioned purpose, features and advantages of the present invention, the present invention is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0035] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0036] Embodiment 1, as Figure 1-9 As shown, a detection device for the production of degradable cardboard includes a chassis 1, and a detection mechanism 2, a distance measuring mechanism 3 and a positioning mechanism 4 are arranged on the surface of the chassis 1. The detection mechanism 2 includes a sliding frame 201, and a plurality of positioning cylinders 202 are arranged on the surface of the sliding frame 201. The surfaces of the plurality of positioning cylinders 202 are all provided with nozzles 203, and the interiors of the plurality of positioning cylinders 202 are all provided with positioning rods 204. The surfaces of the plurality of positioning cylinders 202 are all connected with connecting pipes 205, and the surfaces of the plurality of positioning cylinders 202 are all rotatably connected with rotating cylinders 206 through bearings, and the surfaces of the plurality of rotating cylinders 206 are all provided with a plurality of rotating blades 207. The surfaces of the plurality of positioning cylinders 202 are all provided with through holes for connecting with the nozzles 203, and the surfaces of the plurality of positioning rods 204 are all provided with air pressure sensors 208. The surfaces of the plurality of nozzles 203 are all installed with connecting cylinders 209, and the surfaces of the plurality of connecting cylinders 209 are all provided with connecting frames 210, and the surfaces of the plurality of connecting frames 210 are all provided with air bags 211, and the surfaces of the plurality of connecting cylinders 209 are all provided with a plurality of air inlet holes.

[0037] The effect achieved by the entire embodiment 1 is that the sliding frame 201 drives the connecting frame 210 on the surface to move, and the connecting frame 210 drives the air bag 211 on the surface to press against the outer wall of the cardboard, which can effectively avoid the overflow of air flow when injecting air into the inner interlayer of the cardboard. The air flow entering vertically into the connecting pipe 205 can blow the internal rotating blades 207 to rotate. When the air flow moves to the through hole opened on the positioning cylinder 202, the air flow enters the interior of the nozzle 203 and sprays out the air flow. At this time, the internal air pressure can be detected by the air pressure sensor 208. When the air pressure gradually increases, it indicates that there is no hole in the cardboard. When the internal pressure remains at a stable level, it indicates that there is damage inside the cardboard. At this time, the corresponding damaged interlayer can be found.

[0038] Embodiment 2, as Figure 1-9 As shown, the distance measuring mechanism 3 includes a mounting frame 301, a plurality of positioning rods 204 are rotatably connected to the mounting frame 301 through bearings, the surfaces of the plurality of rotating cylinders 206 are each provided with first teeth 302, the surfaces of the plurality of positioning rods 204 are each provided with second teeth 303, the plurality of first teeth 302 are meshingly connected with the second teeth 303, the surfaces of the plurality of positioning rods 204 are each provided with infrared detectors 304, the nozzle 203 is mounted on the sliding frame 201, the connecting frame 210 is mounted on the surface of the sliding frame 201, the surface of the chassis 1 is provided with a workbench 8, the surface of the workbench 8 is provided with a first cylinder 9 and a second cylinder 10, the output end of the first cylinder 9 is fixedly connected to the mounting frame 301, and the output end of the second cylinder 10 is fixedly connected to the sliding frame 201.

[0039] The effect achieved by the entire embodiment 2 is that the set mounting frame 301 can drive the positioning rod 204 to move when it moves, and the set first teeth 302 are always engaged with the second teeth 303, so that the rotating cylinder 206 can drive the second teeth 303 to rotate when it rotates, thereby driving the positioning rod 204 to rotate, and the rotating positioning rod 204 drives the infrared detector 304 to rotate, which is convenient for measuring the distance inside, so that the flatness of the inside can be detected, the set sliding frame 201 can support the nozzle 203, the set first cylinder 9 can drive the mounting frame 301 to move, and the set second cylinder 10 can drive the sliding frame 201 to move.

[0040] Embodiment 3, as Figure 1-9As shown, the positioning mechanism 4 includes a support frame 405, a plurality of support tubes 401 are arranged on the surface of the support frame 405, a suction cup 402 is arranged on the surface of the plurality of support tubes 401, an exhaust pipe 403 is arranged on the lower surface of the support frame 405, an air pump 404 is arranged on the lower surface of the workbench 8, an air inlet end of the air pump 404 is arranged in communication with the exhaust pipe 403, a plurality of connecting tubes 205 are arranged in communication with a shunt pipe 11, a gas supply hose 12 is arranged on the surface of the shunt pipe 11, a gas supply hose 12 is arranged on the surface of the gas supply hose 12, an air inlet pipe 13 is arranged on the surface of the gas supply hose 12, the air inlet pipe 13 is arranged in communication with the gas outlet end of the air pump 404, a support plate 14 is arranged on the surface of the workbench 8, the gas supply hose 12 and the air inlet pipe 13 are mounted on the support plate 14, a plurality of shunt pipes 11 are mounted on the sliding frame 201, and the rotating blade 207 is movably connected with the positioning cylinder 202.

[0041] The effect achieved by the entire embodiment 3 is that an air pump 404 is set, and when air is pumped, the cardboard can be adsorbed on the top of the suction cup 402, the diverter pipe 11 can divert the airflow, which is convenient for transporting gas to multiple interlayers, the air inlet pipe 13 can transport the gas pumped out by the air pump 404, the support plate 14 can support the air supply hose 12 and the air inlet pipe 13, and the rotating blade 207 is arranged to contact the positioning cylinder 202, which can effectively reduce air leakage.

[0042] Working principle: place the cardboard above multiple suction cups 402, the first cylinder 9 drives the end of the positioning rod 204 to enter the inside of the cardboard through the mounting frame 301, so that the infrared detector 304 is inside the cardboard, and then the sliding frame 201 is driven to move by the second cylinder 10, the sliding frame 201 drives the surface connecting frame 210 to move, the connecting frame 210 drives the surface air bag 211 to press against the outer wall of the cardboard, at this time, the air pump 404 pumps the air flow so that the air flow at the position of the suction cup 402 can enter the support tube 401, at this time, the air flow can adsorb the cardboard on the suction cup 402, the extracted air flow passes through the support frame 405 in turn into the exhaust pipe 403, and enters the air intake pipe 13 through the air pump 404, the air flow in the air intake pipe 13 enters the air supply hose 12, the air flow in the air supply hose 12 enters the diverter pipe 11, the air flow in the diverter pipe 11 enters the connecting pipe 205, and the air flow in the connecting pipe 205 vertically enters the positioning cylinder 202 Inside, the internal rotating blade 207 can be blown to rotate. When the airflow rotates to the through hole opened on the positioning cylinder 202, the airflow enters the inside of the nozzle 203 and sprays out the airflow. At this time, the internal air pressure can be detected by the air pressure sensor 208. When the air pressure gradually increases, it indicates that there is no hole in the paperboard. When the internal pressure remains at a stable level, it indicates that there is damage inside the paperboard. During the internal air tightness detection, the rotation of the rotating blade 207 can drive the first tooth 302 to rotate, the first tooth 302 drives the second tooth 303 to rotate, and the second tooth 303 drives the positioning rod 204 to rotate. At the same time, the first cylinder 9 is started, the first cylinder 9 drives the mounting frame 301 to move, and the mounting frame 301 drives the positioning rod 204 to move toward the inside of the paperboard. At the same time, the rotation of the positioning rod 204 can drive the infrared detector 304 on the surface to rotate during the movement. At this time, the internal flatness can be detected.

[0043] The wiring diagram of the air pressure sensor 208, infrared detector 304, air pump 404, first cylinder 9 and second cylinder 10 in the present invention is common knowledge in the field, and its working principle is a well-known technology. The model is selected according to the actual use, so the control method and wiring arrangement of the air pressure sensor 208, infrared detector 304, air pump 404, first cylinder 9 and second cylinder 10 will not be explained in detail.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A detection device for the production of degradable paperboard, comprising a chassis (1), characterized in that: The surface of the chassis (1) is provided with a detection mechanism (2), a distance measuring mechanism (3) and a positioning mechanism (4); the detection mechanism (2) comprises a sliding frame (201); a plurality of positioning cylinders (202) are provided on the surface of the sliding frame (201); a nozzle (203) is provided on the surface of the plurality of positioning cylinders (202); a positioning rod (204) is provided inside the plurality of positioning cylinders (202); a connecting pipe (205) is provided on the surface of the plurality of positioning cylinders (202); a rotating cylinder (206) is rotatably connected to the surface of the plurality of positioning cylinders (202) via a bearing; a plurality of rotating blades (207) are provided on the surface of the plurality of rotating cylinders (206); ) are provided with through holes for connecting to the nozzle (203), the upper surfaces of the ends of the plurality of positioning rods (204) are provided with air pressure sensors (208), the surfaces of the plurality of nozzles (203) are provided with connecting tubes (209), the surfaces of the plurality of connecting tubes (209) are provided with connecting frames (210), the surfaces of the plurality of connecting frames (210) are provided with air bags (211), the surfaces of the plurality of connecting tubes (209) are provided with a plurality of air inlet holes, the distance measuring mechanism (3) comprises a mounting frame (301), the plurality of positioning rods (204) are rotatably connected to the mounting frame (301) via bearings, the surfaces of the plurality of rotating tubes (206) are provided with first teeth (302), and the plurality of The surfaces of the positioning rods (204) are all provided with second teeth (303), a plurality of the first teeth (302) are meshedly connected with the second teeth (303), a plurality of the positioning rods (204) are all provided with infrared detectors (304), the nozzles (203) are mounted on the sliding frame (201), the connecting frame (210) is mounted on the surface of the sliding frame (201), a workbench (8) is provided on the surface of the chassis (1), a first cylinder (9) and a second cylinder (10) are mounted on the surface of the workbench (8), an output end of the first cylinder (9) is fixedly connected to the mounting frame (301), an output end of the second cylinder (10) is fixedly connected to the sliding frame (201), and the positioning mechanism (4 ) comprises a support frame (405), a plurality of support tubes (401) are arranged on the surface of the support frame (405), a suction cup (402) is arranged on the surface of each of the plurality of support tubes (401), a suction tube (403) is arranged on the lower surface of the support frame (405), an air pump (404) is arranged on the lower surface of the workbench (8), an air inlet end of the air pump (404) is arranged in communication with the air suction tube (403), a support plate (14) is arranged on the surface of the workbench (8), a shunt tube (11) is arranged on the surface of the plurality of connecting tubes (205), a gas supply hose (12) is arranged on the surface of the shunt tube (11), a gas supply hose (12) is arranged on the surface of the gas supply hose (12), an air inlet tube (13) is arranged on the surface of the gas supply hose (12),The air inlet pipe (13) is connected to the air outlet end of the air pump (404), the plurality of flow dividers (11) are mounted on the sliding frame (201), and the rotating blades (207) are movably connected to the positioning cylinder (202).

2. The detection device for the production of degradable paperboard according to claim 1, characterized in that: The air supply hose (12) and the air intake pipe (13) are mounted on a support plate (14).

3. A method for detecting the production of degradable paperboard, used to operate the detection device for the production of degradable paperboard according to any one of claims 1-2, characterized in that: The following steps are involved: S1: placing a cardboard on top of a plurality of suction cups (402); S2: activating the first air cylinders (9) on both sides of the paperboard to drive the sliding frame (201) to move toward the paperboard and press against the paperboard, activating the air pump (404) to adsorb the paperboard onto the suction cup (402), and blowing air into the inside of the paperboard to check air tightness, and judging whether the paperboard is damaged based on the value detected by the air pressure sensor (208); S3: During the blowing process of S2, the second air cylinders (10) on both sides of the paperboard are started to drive the mounting frame (301) to move toward the paperboard position, and the distance inside the paperboard is measured by the infrared detector (304) on the positioning rod (204) to determine the flatness of the inside of the paperboard.

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