A corrugated box forming detection device

Abstract

The present invention discloses a corrugated paper box forming detection device in the field of quality detection equipment, comprising a conveying platform; a main conveyor belt and a detection part are arranged on the conveying platform; a support component, a plurality of laminating components, a vibration component, a collection module and a control module are arranged in the detection part; the support component is used to support the side wall of the corrugated paper box from the inside of the corrugated paper box based on the principle of air pressure expansion; the laminating component is used to laminarly fix the surface of the corrugated paper box to be tested; the vibration component is used to vibrate the corrugated paper box to be tested; the collection module is used to obtain the air pressure change of the support component during the detection process; the control module is used to control the operation of the laminating component, the support component and the vibration component, and judge the quality of the corrugated paper box based on the air pressure change of the support component. This scheme avoids direct physical damage to the paper box through non-destructive air pressure expansion and vibration testing, thereby improving the reuse rate of the paper box.

Description

Technical Field

[0001] The invention belongs to the field of quality inspection equipment, in particular to a corrugated paper box forming inspection device. Background Art

[0002] Corrugated boxes are widely used packaging containers in modern commercial trade. Their molding quality is directly related to the transportation safety and protection effect of the products. In order to ensure that the boxes can meet the diverse market needs, it is particularly important to test the quality of the corrugated boxes after molding.

[0003] The corrugated box forming test device is a key device to ensure the quality of the box. It can test the compressive strength, bursting strength, edge pressure strength, bonding strength, puncture strength, thickness and other performance indicators of the box. These test items are of great significance for evaluating the durability, strength and safety of the box. With the continuous development of the packaging industry, the quality requirements for corrugated boxes are getting higher and higher, and the technical level of the test device is also constantly improving.

[0004] However, although the existing technology has achieved certain results in quality inspection of corrugated boxes, there are still some limitations. When inspecting corrugated boxes, due to the limitations of the inspection methods and equipment, defective boxes are often further damaged. This results in many boxes that could have been repaired or downgraded being unable to be reused. For example, when conducting compressive strength testing, if the inspection pressure is too high or the loading method is improper, the box may be damaged.

[0005] Therefore, there is an urgent need for a detection device that can accurately detect the quality of corrugated boxes while reducing the damage to defective corrugated boxes, so as to avoid wasting many boxes that originally have recycling value. Summary of the invention

[0006] In order to solve the above problems, the purpose of the present invention is to provide a corrugated cardboard box forming detection device to solve the limitations of the prior art in the corrugated cardboard box quality inspection process, especially to reduce further damage to defective cardboard boxes, thereby increasing the reuse rate of cardboard boxes and reducing production costs.

[0007] In order to achieve the above object, the technical solution of the present invention is as follows:

[0008] A corrugated paper box forming detection device comprises a conveying platform; a main conveyor belt and a detection part are arranged on the conveying platform; the main conveyor belt is used to convey the corrugated paper box to be tested to the detection part; a support component, a plurality of laminating components, a vibration component, a collection module and a control module are arranged in the detection part; the support component is used to support the side wall of the corrugated paper box from the inside of the corrugated paper box based on the principle of air pressure expansion; the laminating component is used to laminat and fix the surface of the corrugated paper box to be tested; the vibration component is used to vibrate the corrugated paper box to be tested; the collection module is used to obtain the air pressure change of the support component during the detection process; the control module is used to control the operation of the laminating component, the support component and the vibration component, and judge the quality of the corrugated paper box based on the air pressure change of the support component.

[0009] The above scheme has the following beneficial effects:

[0010] 1. This solution transports the corrugated paper boxes to the main conveyor belt after production, and then moves the corrugated paper boxes to be tested to the detection section through the main conveyor belt; the control module controls the support component to extend into the interior of the corrugated paper boxes to be tested, and inhales air from the inside to expand until the corrugated paper boxes are supported (i.e., the inner walls of the corrugated paper boxes are in contact with the support component), and then the control module controls the bonding component to bond and fix the corrugated paper boxes to be tested (i.e., the outer walls of the corrugated paper boxes are in close contact with the bonding component). At this time, the vibration component is driven to vibrate the corrugated paper boxes to be tested, and the control module determines whether the quality of the corrugated paper boxes meets the standards based on the change in air pressure.

[0011] Compared with the prior art, the present invention uses the support assembly to expand the corrugated paper box with air pressure from the inside to ensure that the side wall of the corrugated paper box is in full contact with the support assembly. This internal support method is more uniform than external pressure application and can more accurately reflect the strength and structural integrity of the corrugated paper box.

[0012] By introducing the vibration component, the device can simulate the vibration environment that the carton may encounter during actual transportation and use, so as to more effectively detect the strength and stability of the carton. At the same time, the real-time monitoring of the air pressure changes of the support component by the acquisition module can accurately reflect the deformation of the carton during the force process, so as to accurately judge the quality of the carton.

[0013] Traditional carton quality inspection involves destructive tests such as squeezing and bending the cartons, which may cause further damage to defective cartons and reduce their recycling rate.

[0014] The detection device of the present invention avoids direct physical damage to the carton through non-destructive air pressure expansion and vibration testing, thereby improving the recycling rate of the carton.

[0015] 2. This solution can not only detect the flatness and defects of the carton's side walls, but also determine the carton's alignment and possible internal structural problems through changes in air pressure. This comprehensive testing method helps ensure the reliability and safety of the carton in subsequent use.

[0016] Furthermore, the supporting component includes an inflatable carrier; a telescopic component is arranged in the detection part, and the telescopic component is used to insert the inflatable carrier into the corrugated box to be tested; an inflatable groove is arranged in the inflatable carrier; the inflatable groove is connected to the inflatable component; a plurality of grooves are arranged circumferentially on the outer side of the inflatable carrier; the groove array is arranged on the surface of the inflatable carrier; airbags are arranged in the grooves; ventilation ducts are arranged between the inflatable grooves and the grooves, and the ventilation ducts connect the airbags with the inflatable grooves; second valves are arranged in the ventilation ducts; the second valves are electrically connected to the control module respectively; the control module is also electrically connected to the inflatable component and the telescopic component.

[0017] Beneficial effect: When the corrugated box to be tested is moved to the target position driven by the main transmission belt, the inflatable carrier is moved and inserted into the interior of the corrugated box through the telescopic component, and then the inflatable groove is inflated through the inflatable component. After the gas enters each groove through the ventilation duct, the airbag is inflated until the airbag is inflated to fully contact the inner wall of the corrugated box to be tested (that is, the corrugated box is in a normal loading state), and then the second valve is closed to maintain a stable air pressure in the airbag.

[0018] The inflatable carrier is precisely inserted into the interior of the corrugated box through a telescopic component, ensuring the accuracy and stability of the support.

[0019] An array of grooves is arranged on the surface of the inflatable carrier, so that the air cells can be evenly distributed inside the carton, thus providing comprehensive support.

[0020] The expansion degree of the airbag can be precisely controlled by the control module to adapt to corrugated boxes of different sizes and shapes, ensuring the consistency of the support effect.

[0021] Furthermore, the bonding component includes a main shaft, a secondary shaft and a flat plate; the detection part is also provided with a moving component, and the moving component is used to drive the main shaft to move horizontally; a telescopic slot is provided in the main shaft; the secondary shaft and the telescopic slot are slidably matched; a pressure regulating tube for adjusting the pressure in the telescopic slot is provided in the telescopic slot; the end of the secondary shaft away from the main shaft is fixedly connected to the flat plate; the flat plate is used to bond with the side wall of the corrugated box; the control modules are electrically connected to the pressure regulating tube and the moving component.

[0022] Beneficial effect: When the corrugated paper box to be tested needs to be fitted and fixed, the control module controls the movement of the moving component to move the flat plate horizontally, and controls the operation of the voltage regulating tube to move the flat plate vertically until the flat plate fits the side wall of the corrugated paper box to be tested. Through the precise control of the moving component and the voltage regulating tube, the flat plate can be accurately moved to the side wall position of the corrugated paper box, achieving high-precision fitting and fixing.

[0023] The function of the pressure regulating tube to adjust the pressure in the expansion slot enables the secondary shaft and the plate to be fine-tuned in the vertical direction to ensure the tightness and stability of the fit.

[0024] Furthermore, the moving component includes a servo motor, a lead screw and a nut seat; a slide groove is also provided in the detection part; both ends of the lead screw are rotationally matched with the slide groove; the output shaft of the servo motor is axially fixedly connected with the lead screw; the lead screw is threadedly matched with the nut seat; and the nut seat is fixedly connected to the top of the main shaft.

[0025] Beneficial effect: The servo motor drives the lead screw to rotate, and the rotation of the lead screw drives the nut seat to move horizontally, thereby driving the main shaft to move horizontally, so as to adjust the horizontal position of the plate.

[0026] Furthermore, the vibration assembly includes a base and a vibration box; a lifting groove is provided on the base; an elastic pad is provided at the bottom of the lifting groove; a bottom plate is provided on the top of the elastic pad; the bottom plate and the lifting groove are slidably matched; a number of clamps are provided on the bottom plate; the bottom of the clamps are fixedly connected to the bottom plate; a top plate is provided on the top of the clamps; the top plate is located below the main transmission belt; the top plate is fixedly connected to each clamp respectively; springs are provided on the inner sides of the clamps; the ends of the springs away from the clamps are fixedly connected to the side walls of the vibration box; a connecting rod is provided on the top of the vibration box; the bottom of the connecting rod is fixedly connected to the vibration box; the top of the connecting rod is rotatably connected to the top plate; a dual-axis motor is provided in the vibration box; the output shaft of the dual-axis motor passes through the side wall of the vibration box; an eccentric wheel is provided on the output shaft of the dual-axis motor; the dual-axis motor is electrically connected to the control module.

[0027] Beneficial effect: When the corrugated cardboard box needs to be vibrated, the control module drives the dual-axis motor to operate. The output shaft of the dual-axis motor drives the eccentric wheel to rotate. The centrifugal force generated during the rotation of the eccentric wheel drives the vibration box to vibrate, and the vibration is transmitted to the clamping plate, bottom plate and top plate through the spring and connecting rod. With the assistance of the elastic cushion layer, the bottom plate slides back and forth up and down along the side wall of the lifting groove. The vibration generated in this process is transmitted to the corrugated cardboard box on the main conveyor belt through the top plate, thereby causing the corrugated cardboard box to vibrate.

[0028] The eccentric wheel is driven by a dual-axis motor to rotate, and the vibration energy generated by centrifugal force is effectively transmitted to the vibration box. This design ensures efficient conversion and transmission of vibration energy, so that the vibration can act on the corrugated box evenly and stably.

[0029] The vibration box is connected to the clamping plate, bottom plate and top plate through springs and connecting rods. This connection method can ensure that the vibration is evenly distributed throughout the entire assembly. When the vibration box vibrates, the elasticity of the springs and the rotation of the connecting rods can further disperse and balance the vibration energy, so that the corrugated cardboard boxes on the top plate can be subjected to uniform and stable vibration.

[0030] Furthermore, an extrusion assembly is also provided on the flat plate; the extrusion assembly includes an air pump, a plurality of piston rods and a plurality of extrusion plates; an air cavity is provided in the flat plate; the air pump is used to fill air into the air cavity; the air cavity is connected to a plurality of branch pipes respectively; a first valve is provided in each branch pipe; the piston rods are respectively slidably matched with the branch pipes; the bottom of the piston rods is respectively fixedly connected to the top of the extrusion plate; the first valve and the air pump are both electrically connected to the control module.

[0031] Beneficial effect: When it is necessary to conduct pressure resistance test on each part of the corrugated box separately, the control module drives the air pump to open the first valve, and the air pump fills gas into the air cavity. As the gas continues to enter each branch pipe, the air pressure in the branch pipe gradually increases, thereby pushing the piston rod outward, and the piston rod pushes the extrusion plate to move; the corrugated box is partially squeezed by the extrusion plate.

[0032] The design of the extrusion assembly allows for separate pressure tests on different parts of the corrugated box. By selectively opening or closing different first valves, the gas pressure in different branch pipes can be controlled to increase, thereby pushing the corresponding piston rod and extrusion plate in a targeted manner to achieve pressure testing of specific areas of the box.

[0033] Compared with the traditional overall compression test method, this local compression test method combined with the support component can locate the weak area of ​​the carton more quickly, reduce unnecessary overall damage, and thus improve the test efficiency. At the same time, since multiple parts can be tested at the same time, the test cycle is further shortened.

[0034] Furthermore, it also includes an auxiliary conveyor belt; the auxiliary conveyor belt is used to transfer unqualified corrugated paper boxes; a transfer component is also arranged in the detection part; the transfer component is used to transfer the unqualified corrugated paper boxes on the main conveyor belt to the auxiliary conveyor belt.

[0035] Beneficial effect: The design of the transfer component enables unqualified corrugated boxes to be quickly and accurately removed from the main conveyor and transferred to the secondary conveyor for subsequent processing. This process optimization reduces manual intervention on the production line and improves the automation level of the production line.

[0036] Furthermore, the acquisition module is a plurality of pressure sensors; the pressure sensors are respectively located in each ventilation duct.

[0037] Beneficial effects: The pressure sensor can monitor the pressure changes in each airbag in real time, providing real-time and accurate data support for the quality inspection of corrugated boxes. This real-time monitoring function enables the control module to quickly understand the performance of the box during the compression test, so as to make timely judgments. When the pressure in all airbags tends to be stable during the compression test, it means that the side wall of the corrugated box is of qualified quality and there are no quality problems such as tilt or depression on the side wall; when the pressure in the airbag changes, it means that the side wall of the corrugated box is uneven or the side wall is depressed and tilted. This data-based evaluation method is more accurate and reliable than traditional manual observation.

[0038] Furthermore, the control module is used to detect and judge the overall flatness of the side wall of the corrugated cardboard box based on a vibration detection method; the vibration detection method includes the following steps: using airbag expansion to support the side wall of the corrugated cardboard box to be tested; using a flat plate to fit and fix the side wall of the corrugated cardboard box; vibrating the corrugated cardboard box after being fitted and fixed; obtaining the pressure change in each airbag during the vibration process; if the pressure change in any airbag exceeds a preset pressure difference, it is judged that the quality of the side wall of the corrugated cardboard box on the side where the airbag is located is poor.

[0039] Beneficial effect: This vibration detection method uses airbag expansion support and flat plate fitting fixation to avoid damage to corrugated boxes that may be caused by physical squeezing or scratching in traditional detection methods. This non-destructive detection method not only protects the integrity of the carton, but also ensures the accuracy of the test results.

[0040] Multiple airbags are used to support the side wall of the corrugated box in all directions, ensuring the comprehensiveness and completeness of the detection process. Each airbag acts as an independent detection unit and can reflect the quality of the carton side wall at its location, thereby achieving a comprehensive assessment of the overall flatness of the carton side wall.

[0041] Furthermore, the control module is also used to perform point compression resistance testing on the side walls of the corrugated cardboard box; use the airbag to expand to support the side walls of the corrugated cardboard box to be tested; use the flat plate to fit and fix the side walls of the corrugated cardboard box; control each extrusion plate in turn to press the side walls of the corrugated cardboard box at points; if the change in pressure in the airbag at the position where the extrusion plate acts exceeds a threshold, it is determined that the side wall of the corrugated cardboard box at that position is defective.

[0042] Beneficial effect: By sequentially controlling each extrusion plate to press the side wall of the corrugated box at a certain position and monitoring the pressure change in the airbag at the position where the extrusion plate acts, the specific position of the compression resistance defect on the side wall of the box can be accurately identified.

[0043] The point compression test method can conduct all-round, multi-point compression performance tests on the side walls of corrugated boxes, thereby comprehensively evaluating the compression performance of the boxes. This comprehensive evaluation method can ensure that the boxes can withstand sufficient pressure during transportation and storage, and avoid damage or deformation caused by insufficient compression performance. This ensures that the boxes can withstand sufficient pressure at different locations, thereby improving the accuracy of the overall compression performance evaluation of the boxes.

[0044] Although the overall compression test can provide an evaluation of the overall compression performance of the carton, it is often difficult to find local defects. The point compression test method can make up for this deficiency. Through precise point pressing and pressure monitoring, it can accurately find defects that cannot be found by the overall compression test. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a three-dimensional structural schematic diagram of an embodiment of a corrugated box forming detection device of the present invention.

[0046] Figure 2 for Figure 1 Top view of the .

[0047] Figure 3 for Figure 2 Middle AA section view.

[0048] Figure 4 for Figure 3 A partial enlarged schematic diagram of point M in the middle.

[0049] Figure 5 It is a schematic diagram of the structure of the inflation carrier when the airbag is inflated.

[0050] Figure 6 It is a schematic diagram of the structure of the inflatable carrier when idle.

[0051] Figure 7 for Figure 3 A partial enlarged schematic diagram of point P in the middle.

[0052] Figure 8 Schematic diagram of the internal structure of the plate.

[0053] The reference numerals in the drawings of the specification include: 1, conveying platform; 2, main conveyor belt; 3, auxiliary conveyor belt; 4, detection unit; 5, corrugated paper box; 6, inflatable carrier; 7, base; 8, transfer assembly; 9, side channel; 401, slide; 402, lead screw; 403, nut seat; 404, servo motor; 405, main shaft; 406, telescopic slot; 407, auxiliary shaft; 408, pressure regulating pipe; 409, plate; 4091, air pump; 409 2. Air cavity; 4093. Branch pipe; 4094. First valve; 4095. Piston rod; 4096. Extrusion plate; 601. Groove; 602. Inflating groove; 603. Pressure sensor; 604. Second valve; 605. Ventilation duct; 606. Air bag; 701. Clamp; 702. Elastic cushion; 703. Bottom plate; 704. Top plate; 705. Connecting rod; 706. Vibration box; 707. Eccentric wheel; 708. Spring. DETAILED DESCRIPTION

[0054] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0055] In the description of the present invention, it is to be understood that the terms “longitudinal”, “lateral”, “vertical”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside” and “outside” etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0057] The following is further described in detail through specific implementation methods:

[0058] Embodiment 1 is basically as attached Figure 1-Figure 8 As shown: a corrugated paper box forming detection device, mainly comprising a conveying platform 1, in this embodiment, the conveying platform 1 is located on the production line of the corrugated paper box 5; Figure 1 -Attached Figure 3As shown, a main conveyor belt 2 and a detection unit 4 are provided on the conveying platform 1 ; the main conveyor belt 2 is used to convey the corrugated paper box 5 to be detected to the detection unit 4 .

[0059] In this embodiment, the specific shape of the detection part 4 is a box body. The detection part 4 is provided with a support component, a plurality of fitting components, a vibration component, a collection module and a control module.

[0060] The support assembly is used to support the side walls of the corrugated paper box 5 from inside the corrugated paper box 5 based on the principle of air pressure expansion.

[0061] Specifically, the supporting component includes an inflatable carrier 6; a telescopic component is arranged in the detection part 4, and in this embodiment, the telescopic component is an electric cylinder, and the output end of the electric cylinder is fixedly connected to the inflatable carrier 6, and the telescopic component is used to insert the inflatable carrier 6 into the corrugated box 5 to be tested. In this embodiment, the corrugated box 5 is formed by wrapping and folding a piece of corrugated paper, and at this time, both ends of the corrugated box 5 are open, so the inflatable carrier 6 can extend into the interior of the corrugated box 5 from the opening; an inflatable groove 602 is opened in the inflatable carrier 6; the inflatable groove 602 is connected to the inflatable component; in this embodiment, the inflatable component is an inflatable pump 4091; a plurality of grooves 601 are opened circumferentially on the outer side of the inflatable carrier 6, and in this embodiment, the shape of the grooves 601 is hemispherical; the grooves 601 are arranged in an array on the surface of the inflatable carrier 6, and specifically, in combination with the attached Figure 4 and attached Figure 5 As shown, grooves 601 are arranged at the top, bottom, left and right sides; airbags 606 are bonded and fixed in the grooves 601; ventilation ducts 605 are opened between the inflation grooves 602 and the grooves 601, and the ventilation ducts 605 connect the airbags 606 with the inflation grooves 602; second valves 604 are installed in the ventilation ducts 605 by screws; the second valves 604 are electrically connected to the control modules respectively; the control module is also electrically connected to the inflation assembly and the telescopic assembly. Specifically, in this embodiment, the control module is electrically connected to the electric cylinder and the inflation pump 4091.

[0062] The laminating components are used to laminarly fix the surface of the corrugated paper box 5 to be tested. In this embodiment, a total of 3 sets of laminating components are provided, which are used to laminarly clamp the top and both sides of the corrugated paper box 5 respectively.

[0063] Specifically, the laminating assembly includes a main shaft 405, a secondary shaft 407 and a flat plate 409; a moving assembly is also provided in the detection unit 4, and the moving assembly is used to drive the main shaft 405 to move horizontally. In this embodiment, there are two groups of moving assemblies, which are respectively used to move the laminating assemblies for laminating and fixing the two sides of the corrugated paper box 5; in this embodiment, in combination with the attached Figure 7As shown, the moving assembly includes a servo motor 404, a lead screw 402 and a nut seat 403; a slide groove 401 is also provided in the detection part 4, and in this embodiment, the layout direction of the slide groove 401 is on the same plane as the layout direction of the main conveyor belt 2; both ends of the lead screw 402 are rotatably matched with the slide groove 401; the output shaft of the servo motor 404 is axially welded and fixed to the lead screw 402; the lead screw 402 is threadedly matched with the nut seat 403; the nut seat 403 is welded and fixed to the top of the main shaft 405.

[0064] A telescopic slot 406 is provided in the main shaft 405; the secondary shaft 407 is slidably matched with the telescopic slot 406; a pressure regulating pipe 408 for adjusting the pressure in the telescopic slot 406 is provided in the telescopic slot 406. In this embodiment, the pressure regulating pipe 408 is composed of a two-way pump and a conduit, and the two-way pump is used to generate positive pressure and negative pressure; the secondary shaft 407 is welded and fixed to the flat plate 409 at one end away from the main shaft 405. Specifically, in the three groups of laminating components in this embodiment, the flat plate 409 that is laminated and fixed to both sides of the corrugated paper box 5 is welded and fixed to the bottom side of the secondary shaft 407 corresponding to it, and combined with the attached Figure 3 As shown, the flat plate 409 for fitting and fixing the top of the corrugated box 5 is axially welded and fixed to the bottom of the corresponding secondary shaft 407; the flat plate 409 is mainly used to fit with the side walls of the corrugated box 5. In this embodiment, the flat plate 409 fits and fixes the top wall and the two side walls of the corrugated box 5 respectively; the control modules are electrically connected to the pressure regulating tube 408 (bidirectional pump) and the moving component (servo motor 404).

[0065] In order to realize point compression testing, Figure 8 As shown, an extrusion assembly is also provided on the flat plate 409; the extrusion assembly includes an air pump 4091, a plurality of piston rods 4095 and a plurality of extrusion plates 4096; an air cavity 4092 is opened in the flat plate 409; the air pump 4091 is used to fill air into the air cavity 4092; the air cavity 4092 is respectively connected to a plurality of branch pipes 4093; a first valve 4094 is fixed in each branch pipe 4093 by screws; the piston rods 4095 are respectively slidably matched with the branch pipes 4093; the bottom of the piston rod 4095 is respectively welded and fixed to the top of the extrusion plate 4096; the first valve 4094 and the air pump 4091 are both electrically connected to the control module.

[0066] The vibration component is used to vibrate the corrugated paper box 5 to be tested.

[0067] Specifically, the vibration assembly includes a base 7 and a vibration box 706; in this embodiment, the base 7 is welded and fixed to the inner wall of the detection part 4, and a lifting groove is provided on the base 7; Figure 4As shown, an elastic cushion layer 702 is placed at the bottom of the lifting groove; a bottom plate 703 is bonded and fixed on the top of the elastic cushion layer 702; the bottom plate 703 is slidably matched with the lifting groove; in this embodiment, two clamping plates 701 are welded and fixed on both sides of the top of the bottom plate 703; the same top plate 704 is welded and fixed on the top of the two clamping plates 701; the top plate 704 is located below the main transmission belt. In this embodiment, the top of the top plate 704 is smooth and fits the bottom of the main conveyor belt 2; springs 708 are welded and fixed on the inner sides of the clamping plates 701 ; The end of the spring 708 away from the clamping plate 701 is welded and fixed to the side wall of the vibration box 706; a connecting rod 705 is arranged on the top of the vibration box 706; the bottom of the connecting rod 705 is welded and fixed to the vibration box 706; the top of the connecting rod 705 is rotatably connected to the bottom of the top plate 704; a dual-axis motor is fixed in the vibration box 706 by bolts; the output shaft of the dual-axis motor passes through the side wall of the vibration box 706; an eccentric wheel 707 is axially welded and fixed on the output shaft of the dual-axis motor; the dual-axis motor is electrically connected to the control module.

[0068] The acquisition module is used to obtain the air pressure changes of the support component during the detection process.

[0069] Specifically, in this embodiment, the acquisition module is a plurality of pressure sensors 603; Figure 5 and attached Figure 6 As shown, the pressure sensors 603 are installed in each ventilation duct 605 respectively.

[0070] The control module is used to control the operation of the laminating component, the supporting component and the vibrating component, and detect the quality of the corrugated paper box 5; specifically, the quality of the corrugated paper box 5 is judged based on the change of the air pressure of the supporting component.

[0071] Specifically, the control module is used to detect and judge the overall flatness of the side wall of the corrugated cardboard box 5 based on a vibration detection method; the vibration detection method includes the following steps: using the airbag 606 to expand to support the side wall of the corrugated cardboard box 5 to be tested; using the flat plate 409 to fit and fix the side wall of the corrugated cardboard box 5; vibrating the corrugated cardboard box 5 after being fitted and fixed; obtaining the pressure change in each airbag 606 during the vibration process; if the pressure change in any airbag 606 exceeds the preset pressure difference, it is judged that the quality of the side wall of the corrugated cardboard box 5 on the side where the airbag 606 is located is poor.

[0072] The control module is also used to perform point compression resistance testing on the side wall of the corrugated box 5; use the airbag 606 to expand to support the side wall of the corrugated box 5 to be tested; use the flat plate 409 to fit and fix the side wall of the corrugated box 5; control each extrusion plate 4096 in turn to press the side wall of the corrugated box 5 at a point; if the pressure in the airbag 606 at the position where the extrusion plate 4096 acts changes, it is determined that the side wall of the corrugated box 5 at this position is defective.

[0073] The specific implementation process is as follows:

[0074] When the flatness of the corrugated box 5 is detected, the control module drives the electric cylinder to extend the inflatable carrier 6 into the interior of the corrugated box 5 (i.e., the hollow area), and then drives the air pump 4091 to operate. The air pump 4091 fills gas into the inflation groove 602. The gas enters each groove 601 along each ventilation duct 605, and expands the airbag 606 until the airbag 606 contacts the inner wall of the corrugated box 5. The control module closes the second valve 604 and the air pump 4091 at the same time to stop inflation. At this time, the air pressure in each airbag 606 maintains a balanced and stable state.

[0075] Then the control module controls the pressure regulating tube 408 to fill gas into the telescopic slot 406 to make the inner shaft slide outward. The servo motor 404 is controlled to work, and the servo motor 404 drives the lead screw 402 to rotate. The rotation of the lead screw 402 drives the nut seat 403 to move, and then drives the main shaft 405 to move horizontally toward the corrugated box 5 until the flat plate 409 fits the side wall of the corrugated box 5. After the top and both sides of the corrugated box 5 are fitted and fixed by the flat plate 409, the control module controls the dual-axis motor to operate, and the dual-axis motor rotates the eccentric wheel 707. The deflection wheel generates centrifugal force, which drives the vibration box 706, the splint 701, the bottom plate 703 and the top plate 704 to shake. With the assistance of the lifting slot and the elastic cushion layer 702, the vibration box 706, the splint 701, the bottom plate 703 and the top plate 704 move back and forth in the vertical direction, and the corrugated box 5 is affected. After vibration, due to the limitation of the flat plate 409 and the inflatable carrier 6, the airbag 606 will be squeezed. If the side walls of the corrugated box 5 are flat, the pressure change in the airbag 606 will tend to be consistent. If any of the side walls is uneven, the pressure in the airbag 606 on that side wall will be different from the pressure in the airbag 606 on other side walls. The control module obtains the pressure change in the airbag 606 in real time through the pressure sensor 603 to judge the quality of the corrugated box 5.

[0076] When the side wall of the corrugated paper box 5 is subjected to overall compression test, the control module controls the supporting assembly and the laminating assembly to support and laminat the corrugated paper box 5 respectively, and then controls the pressure regulating tube 408 (the pressure regulating tube 408 located at the top of the corrugated paper box 5) to operate again, so that the inner axis moves downward, and the top of the corrugated paper box 5 is subjected to compression test. The control module monitors the pressure change in the air bag 606 at the top in real time through the pressure sensor 603. When the side wall of the corrugated paper box 5 is tested, the control module controls the servo motor 404 to operate, so that the flat plate 409 gradually squeezes the side wall of the corrugated paper box 5, and the control module monitors the pressure change in the air bag 606 on the side wall in real time through the pressure sensor 603. If the pressure change in any air bag 606 exceeds the preset pressure difference, it is judged that the quality of the side wall of the corrugated paper box 5 on the side where the air bag 606 is located is poor.

[0077] When the point compression test is performed on one side of the corrugated paper box 5, the control module controls the supporting assembly and the laminating assembly to support and laminat the corrugated paper box 5 respectively, and then controls the air pump 4091 in the flat plate 409 corresponding to the side to operate, and the air pump 4091 works to continuously replenish gas into the air cavity 4092. At the same time, the control module controls the opening and closing of the first valve 4094, so that the piston rod 4095 in each branch pipe 4093 pushes the squeezing plate 4096 to gradually press each point of the side wall. The control module monitors the pressure change in the airbag 606 in real time through the pressure sensor 603, so as to judge the quality of each position on the side wall. If the pressure change in the airbag 606 at the position where the squeezing plate 4096 acts exceeds the threshold, it is judged that the side wall of the corrugated paper box 5 at this position is defective.

[0078] The difference between Example 2 and Example 1 is that it also includes a secondary conveyor belt 3; the secondary conveyor belt 3 is used to transfer unqualified corrugated paper boxes 5; a transfer component 8 is also provided in the detection unit 4; the transfer component 8 is used to transfer unqualified corrugated paper boxes 5 on the main conveyor belt 2 to the secondary conveyor belt 3. In this embodiment, the transfer component 8 is a mechanical arm. In this embodiment, a side channel 9 is also connected between the main conveyor belt 2 and the secondary conveyor belt 3 (mainly used to reduce the moving distance of the transfer component 8, thereby improving the efficiency of the transfer component 8), and the level of the secondary conveyor belt 3 is lower than the main conveyor belt 2, so that the transfer component 8 can quickly transfer the unqualified corrugated paper boxes 5 to the side channel 9, and then slide them onto the secondary conveyor belt through the side channel 9.

[0079] Specific implementation process: When the control module determines that the quality of the corrugated cardboard box 5 is unqualified, the control module controls the operation of the robotic arm to clamp the unqualified corrugated cardboard box 5 to the side channel 9. The unqualified corrugated cardboard box 5 slides from the side channel 9 onto the auxiliary conveyor belt 3, and then is sent away from the detection part 4 through the auxiliary conveyor belt 3 for subsequent processing.

[0080] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and / or characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A corrugated paper box forming detection device, comprising a conveying platform (1); a main conveyor belt (2) and a detection unit (4) are arranged on the conveying platform (1); the main conveyor belt (2) is used to convey the corrugated paper box (5) to be tested to the detection unit (4); characterized in that: The detection section (4) is provided with a support component, a plurality of laminating components, a vibration component, a collection module and a control module; the support component is used to support the side wall of the corrugated paper box (5) from the inside of the corrugated paper box (5) based on the principle of air pressure expansion; the laminating component is used to laminarly fix the surface of the corrugated paper box (5) to be tested; the vibration component is used to vibrate the corrugated paper box (5) to be tested; the collection module is used to obtain the air pressure change of the support component during the detection process; the control module is used to control the operation of the laminating component, the support component and the vibration component, and judge the quality of the corrugated paper box (5) based on the air pressure change of the support component; The support assembly comprises an inflatable carrier (6); a telescopic assembly is arranged in the detection part (4), and the telescopic assembly is used to insert the inflatable carrier (6) into the interior of the corrugated paper box (5) to be tested; an inflatable groove (602) is arranged in the inflatable carrier (6); the inflatable groove (602) is connected to the inflatable assembly; a plurality of grooves (601) are arranged in the circumferential direction of the outer side of the inflatable carrier (6); the grooves (601) are arranged in an array on the surface of the inflatable carrier (6); air bags (606) are arranged in the grooves (601); ventilation ducts (605) are arranged between the inflatable grooves (602) and the grooves (601), and the ventilation ducts (605) connect the air bags (606) with the inflatable grooves (602); second valves (604) are arranged in the ventilation ducts (605); the second valves (604) are electrically connected to the control module respectively; the control module is also electrically connected to the inflatable assembly and the telescopic assembly; The laminating component comprises a main shaft (405), a secondary shaft (407) and a flat plate (409); the detection part (4) is further provided with a moving component, and the moving component is used to drive the main shaft (405) to move horizontally; a telescopic groove (406) is provided in the main shaft (405); the secondary shaft (407) and the telescopic groove (406) are slidably matched; a pressure regulating tube (408) for regulating the pressure in the telescopic groove (406) is provided in the telescopic groove (406); one end of the secondary shaft (407) away from the main shaft (405) is fixedly connected to the flat plate (409); the flat plate (409) is used to laminarize with the side wall of the corrugated paper box (5); and the control module is electrically connected to the pressure regulating tube (408) and the moving component.

2. The corrugated box forming detection device according to claim 1, characterized in that: The moving assembly comprises a servo motor (404), a lead screw (402) and a nut seat (403); a slide groove (401) is further provided in the detection portion (4); both ends of the lead screw (402) are rotationally matched with the slide groove (401); the output shaft of the servo motor (404) is axially fixedly connected with the lead screw (402); the lead screw (402) is threadedly matched with the nut seat (403); and the nut seat (403) is fixedly connected with the top of the main shaft (405).

3. The corrugated box forming detection device according to claim 2, characterized in that: The vibration assembly comprises a base (7) and a vibration box (706); a lifting groove is arranged on the base (7); an elastic cushion layer (702) is arranged at the bottom of the lifting groove; a bottom plate (703) is arranged on the top of the elastic cushion layer (702); the bottom plate (703) and the lifting groove are slidably matched; a plurality of clamping plates (701) are arranged on the bottom plate (703); the bottoms of the clamping plates (701) are fixedly connected to the bottom plate (703); a top plate (704) is arranged on the top of the clamping plates (701); the top plate (704) is located below the main transmission belt; and the top plate (704) is fixedly connected to each clamping plate (701); A spring (708) is provided on the inner side of the clamping plate (701); one end of the spring (708) away from the clamping plate (701) is fixedly connected to the side wall of the vibration box (706); a connecting rod (705) is provided on the top of the vibration box (706); the bottom of the connecting rod (705) is fixedly connected to the vibration box (706); the top of the connecting rod (705) is rotatably connected to the top plate (704); a double-axis motor is provided in the vibration box (706); the output shaft of the double-axis motor passes through the side wall of the vibration box (706); an eccentric wheel (707) is provided on the output shaft of the double-axis motor; and the double-axis motor is electrically connected to the control module.

4. The corrugated box forming detection device according to claim 3, characterized in that: The flat plate (409) is also provided with an extrusion assembly; the extrusion assembly comprises an air pump (4091), a plurality of piston rods (4095) and a plurality of extrusion plates (4096); an air cavity (4092) is provided in the flat plate (409); the air pump (4091) is used to fill air into the air cavity (4092); the air cavity (4092) is respectively connected to a plurality of branch pipes (4093); a first valve (4094) is provided in each of the branch pipes (4093); the piston rods (4095) are respectively slidably matched with the branch pipes (4093); the bottom of the piston rod (4095) is respectively fixedly connected to the top of the extrusion plate (4096); the first valve (4094) and the air pump (4091) are both electrically connected to the control module.

5. The corrugated box forming detection device according to claim 4, characterized in that: It also includes an auxiliary conveyor belt (3); the auxiliary conveyor belt (3) is used to transfer unqualified corrugated paper boxes (5); a transfer component (8) is also arranged in the detection part (4); the transfer component (8) is used to transfer the unqualified corrugated paper boxes (5) on the main conveyor belt (2) to the auxiliary conveyor belt (3).

6. The corrugated box forming detection device according to claim 5, characterized in that: The acquisition module is a plurality of pressure sensors (603); the pressure sensors (603) are respectively located in each ventilation duct (605).

7. The corrugated box forming detection device according to claim 6, characterized in that: The control module is used to detect and judge the overall flatness of the side wall of the corrugated paper box (5) based on a vibration detection method; the vibration detection method comprises the following steps: using an air bag (606) to expand and support the side wall of the corrugated paper box (5) to be tested; using a flat plate (409) to fit and fix the side wall of the corrugated paper box (5); vibrating the corrugated paper box (5) after being fitted and fixed; obtaining the pressure change in each air bag (606) during the vibration process; if the pressure change in any air bag (606) exceeds a preset pressure difference, it is judged that the quality of the side wall of the corrugated paper box (5) on the side where the air bag (606) is located is poor.

8. The corrugated box forming detection device according to claim 7, characterized in that: The control module is also used to perform point-by-point compression testing on the side wall of the corrugated paper box (5); to support the side wall of the corrugated paper box (5) to be tested by expanding the air bag (606); to fit and fix the side wall of the corrugated paper box (5) by using the flat plate (409); to sequentially control each squeezing plate (4096) to perform point-by-point compression on the side wall of the corrugated paper box (5); and if the change in the pressure in the air bag (606) at the position where the squeezing plate (4096) acts exceeds a threshold value, it is determined that the side wall of the corrugated paper box (5) at that position has a defect.

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