A glass steel packing box sealing performance detection device

Abstract

The application belongs to the technical field of sealing performance detection devices, in particular to a glass steel packaging box sealing performance detection device, a suction cup taking and placing module, which is used for grabbing the end cover of the box body and moving it to the butt joint position of the box body; a butt joint module, which is arranged between the end cover and the box body and comprises a clamping unit and an anti-inclination unit, the clamping unit realizes quick sealing connection of the end cover through structural cooperation of a limiting claw and a limiting ring groove, and the anti-inclination unit is provided with a torque sensor and an alarm assembly, the horizontal degree of the end cover installation is judged by detecting the torque change curve when the limiting claw slides along the inclined ring groove; the application solves the problems of poor horizontal degree and low efficiency of the end cover connection through the clamping unit and torque monitoring, solves the problems of missed detection, difficult source positioning and difficult quality tracing by combining directional spraying and test paper detection positioning of the leakage source, and solves the problems of missed detection, difficult source positioning and difficult quality tracing by matching code scanning and tracing.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of sealing performance detection devices, in particular to a glass steel packaging box sealing performance detection device. BACKGROUND

[0002] Glass steel packaging boxes are widely used in the storage and transportation of precision instruments, chemical reagents, outdoor equipment and other fields due to their lightweight, corrosion resistance and high strength. The sealing performance of the glass steel packaging box directly determines whether the internal goods are affected by moisture, dust and corrosive gases, and is a core indicator to ensure the safety and stability of the goods. Therefore, during the production process of the glass steel packaging box, the sealing performance detection of the end cover and the box body becomes a key quality control link.

[0003] Traditional glass steel packaging box sealing detection is mainly through pressure decay method, that is, gas is filled into the closed measured part and the initial pressure is maintained, and the pressure sensor is used to monitor the pressure change in real time to determine whether the sealing is qualified. Or use the "soap bubble method" to detect the sealing performance. With the development of industrial automation, automated detection equipment has gradually appeared, such as some schemes introduce mechanical arm to grab the end cover and fix the negative pressure detection unit to replace manual work and improve efficiency. For example, the sealing box sealing degree detection device disclosed in the Chinese patent with the publication number CN114383784B realizes sealing detection through automatic pressurization and pressure monitoring.

[0004] In the prior art, the following problems exist:

[0005] Firstly, the traditional connection method is to connect the end cover and the mounting groove on the box body through threads, but this method is easy to cause uneven sealing surface, and the end cover is difficult to keep horizontal. Or fixed by multiple screws, and then detected by a level sensor, but the above methods have high rework rate, and the level is detected after installation, which is complicated and time-consuming, and is not conducive to efficient detection.

[0006] Secondly, the existing pressure decay method can only determine whether there is leakage, but cannot determine whether the leakage is at the end cover or at the box body, and manual disassembly and troubleshooting are required, which conflicts with the efficiency requirements of mass production.

[0007] Thirdly, the detection data of the existing scheme is stored independently and is not associated with the packaging box batch number and the end cover connection parameters (such as level data). When there is a sealing problem in a batch, it is difficult to trace whether it is a connection level problem, a detection parameter adaptation problem or a sealing part batch quality problem.

[0008] Therefore, the application provides a glass steel packaging box sealing performance detection device. SUMMARY

[0009] In order to make up for the deficiencies of the prior art, the problems of the prior art, such as the difficulty in guaranteeing the level of the traditional thread and screw connection end cover, the high rework rate and low efficiency, the easy missed detection of the existing automatic detection fixed parameter, the difficult source of the missed detection, the untraceable quality control closed loop due to the unassociated batch number and the detection data, and the quality control closed loop fracture are solved.

[0010] The technical scheme adopted by the present application to solve its technical problems is: a glass fiber reinforced plastic packaging box sealing performance detection device, comprising:

[0011] The suction cup taking and placing module is used for grabbing the end cover of the box body and moving it to the butt joint position of the box body.

[0012] The butt joint module is arranged between the end cover and the box body and comprises a clamping unit and an anti-inclination unit. The clamping unit realizes the rapid sealing connection of the end cover through the structural cooperation of the limiting claw and the limiting ring groove. The anti-inclination unit is provided with a torque sensor and an alarm assembly. The torque change curve when the limiting claw slides along the inclined ring groove is detected to determine the levelness of the end cover installation.

[0013] The fusion detection module is arranged at the top of the box body and comprises a negative pressure detection unit and a test paper screening unit. The negative pressure detection unit is used for detecting the sealing performance of the box body. The test paper screening unit is used for detecting the sealing performance of the end cover. According to the angle position corresponding to the torque anomaly, the sealing performance of the corresponding area is detected.

[0014] The code scanning and tracing module is used for identifying the batch number information of the end cover and associating and storing the full-link data of "torque curve-levelness determination-sealing performance detection".

[0015] In the present application, after the suction cup taking and placing module moves the end cover to the butt joint position, the limiting claw of the clamping unit starts to slide along the inclined ring groove, and the anti-inclination unit collects torque data in real time. If the torque curve smoothly rises within the preset range, it is determined that the levelness is qualified. The fusion detection module is started and adjusts the detection strategy according to the torque characteristics. If the torque abnormally fluctuates or the peak value exceeds the limit, the alarm assembly issues an alarm and the suction cup taking and placing module adjusts the posture of the end cover again.

[0016] In the present application, the suction cup taking and placing module comprises:

[0017] The sponge suction cup is provided with a honeycomb-shaped air hole on the adsorption surface and is used for adapting to the curved profile of the end cover and adsorbing the end cover.

[0018] The multi-axis driving assembly is used for driving the sponge suction cup to move along the X, Y and Z axes and rotate around the Z axis to adjust the spatial posture of the end cover.

[0019] The negative pressure pump is communicated with the sponge suction cup and provides an adsorption negative pressure of 0.4-0.6 MPa.

[0020] Preferably, the clamping unit comprises vertical grooves and a limiting assembly, a plurality of vertical grooves are formed in the top of the end cover, a limiting claw is slidably connected in each of the vertical grooves, the cross section of the limiting claw is J-shaped, first and second cavities are formed on the two sides of each vertical groove, a lifting block and a pressing block are fixedly connected to the two side walls of the limiting claw, and the lifting block and the pressing block are located in the first and second cavities respectively, a spring is fixedly connected between the top of the lifting block and the top of the first cavity, and a sealing gasket is fixedly connected to the outer ring wall of the end cover through a ring groove, and the position of the sealing gasket corresponds to that of the pressing block.

[0021] Preferably, the limiting assembly comprises through grooves, a plurality of through grooves are formed in the top of the end cover, the through grooves are matched with the limiting claws, an inclined ring groove is formed in the side wall of each through groove, a plurality of limiting grooves are formed in the bottom of the end cover, the limiting grooves are communicated with the inclined ring grooves, the depth of the inclined ring groove gradually increases from the through groove to the limiting groove, and the limiting grooves and the inclined ring grooves are matched with the short end vertical side of the limiting claw.

[0022] Preferably, the anti-inclination unit comprises taper grooves and a torque curve analysis module, a taper groove is formed in the circular wall of the end cover and the connecting groove of the box, and a pair of taper grooves are matched, the taper grooves are arranged with the tips downward, a sleeve is fixedly connected to the top of the sponge suction cup, the top of the box is provided with a sealed transparent cover, the top of the sealed transparent cover is fixedly connected with a motor, and a torque sensor is fixedly connected between the output end of the motor and the sleeve; the anti-inclination unit further comprises a torque curve analysis module, which comprises three characteristic curves:

[0023] Qualified curve: the torque linearly and smoothly rises with the rotation angle, the slope is between 0.05-0.1 N•m / °, and there is no peak value;

[0024] Mild inclination curve: 1-2 torque peaks appear, the torque peak is less than or equal to 1.5 times the average torque, and the limiting claw in the inclination direction rubs;

[0025] Severe inclination curve: continuous torque fluctuation occurs, and the fluctuation amplitude is greater than 30% or the single peak value is greater than or equal to 2 times the average torque;

[0026] Among them, the qualified curve corresponds to the qualified levelness, the mild inclination curve triggers the local strengthening detection of the fusion detection module, and the severe inclination curve directly alarms;

[0027] The torque curve analysis module in the application comprises a data acquisition device: the core is a torque sensor, which is used for real-time acquisition of torque data generated by the limiting claw sliding along the inclined ring groove when the end cover is driven to rotate by the motor, and is the original data source for curve analysis;

[0028] Signal processing device: contains signal amplifier and A / D converter, the former amplifies the weak electrical signal output by the torque sensor, and the latter converts the analog signal into a digital signal to ensure data accuracy.

[0029] Data operation and storage device: mostly embedded microprocessor (such as MCU) or industrial control chip, with built-in preset algorithm (such as curve slope calculation, peak identification algorithm), to realize dynamic analysis and feature judgment of torque curve, and temporarily store real-time torque data and analysis results;

[0030] Instruction interaction device: contains data interface (such as RS485, Ethernet interface), used to transmit curve analysis results (qualified / slight tilt / serious tilt) to the linkage control module to trigger subsequent clamping, locking, alarming or posture adjustment instructions.

[0031] Preferably, the test paper screening unit comprises a liquid storage ring box, the outer circular wall of the sleeve is fixedly connected with the liquid storage ring box through a ring plate, a connecting plate is rotatably connected to the inner wall of the sealed transparent cover, and the connecting plate is fixedly connected with a ring-shaped spraying box, a group of spraying holes are arranged on the ring-shaped spraying box, the liquid storage ring box is connected with the ring-shaped spraying box in communication through a group of connecting pipes, and a group of single spraying pipes are arranged at the bottom of the liquid storage ring box and correspond to the vertical grooves in position; a test paper is arranged on the top of the end cover and is matched with the end cover, the test paper covers the position between the vertical grooves, the end cover and the joint of the box body, and the position of the spraying pipe corresponds to the position of the test paper at the bottom edge of the end cover; a group of identification cameras are arranged in the sealed transparent cover.

[0032] In the application, the spraying amount and spraying time of the ring-shaped spraying box are dynamically adjusted according to the torque curve analysis result of the anti-tilt unit: when a slight tilt curve is detected, the spraying amount of the spraying pipe corresponding to the torque peak angle position is increased by 50%, and the spraying time is prolonged to 1.5 times, so as to strengthen the sealing detection of the region.

[0033] In the application, the negative pressure detection unit comprises a medium conveying pipeline, and the end of the medium conveying pipeline is provided with a sealing joint matched with the central connecting pipe of the end cover.

[0034] The pressure control assembly is used for adjusting the pressure in the box body to a detection pressure of 0.05-0.3 MPa and maintaining the pressure for 50-80 seconds.

[0035] The leakage detection assembly comprises a pressure sensor and a test paper color development identification unit, the measurement accuracy of the pressure sensor is ±0.001 MPa, and the test paper color development identification unit identifies whether the test paper at the joint of the end cover and the box body is discolored through the identification camera.

[0036] Preferably, the code scanning and tracing module comprises:

[0037] A two-dimensional code scanner is arranged to read the batch number two-dimensional code on the end cover surface.

[0038] A data storage unit is arranged to store the associated information of "end cover batch number - levelness detection data - sealing performance result - detection time";

[0039] An abnormality early warning unit is arranged to automatically issue a batch quality early warning when the unqualified rate of end covers of the same batch number exceeds 5%.

[0040] Preferably, the curve type output by the anti-inclination unit is also used to trigger the pressure adjustment of the negative pressure detection unit: when the qualified curve is identified, the negative pressure detection unit adjusts the pressure in the box to 0.08-0.12 MPa; when the slight inclination curve is identified, the negative pressure detection unit adjusts the pressure in the box to 0.15-0.2 MPa to make up for the insufficient local sealing surface pressure caused by the levelness deviation and avoid the missed detection under the conventional negative pressure; when the serious inclination curve triggers the alarm, the negative pressure detection unit does not start the detection.

[0041] Preferably, a linkage control module is further included, which is electrically connected with the suction disc taking and placing module, the docking module, the fusion detection module and the code scanning and tracing module respectively, and is used to control the modules to work in the following time sequence:

[0042] a. The suction disc taking and placing module grabs the end cover and moves it to above the box for initial docking of the tapered groove;

[0043] b. The motor drives the end cover to rotate, the limiting claw starts to slide along the inclined ring groove, and the torque sensor synchronously collects the real-time torque value;

[0044] c. The torque curve analysis module of the anti-inclination unit dynamically judges the curve type;

[0045] Step one: if it is a qualified curve, the clamping unit is completely locked, and step d is executed;

[0046] Step two: if it is a slight inclination curve, the peak angle position is recorded, and the clamping unit is completely locked before step d is executed;

[0047] Step three: if it is a serious inclination curve, the rotation is immediately stopped, the alarm assembly is started, and the suction disc taking and placing module adjusts the end cover posture and returns to step b;

[0048] d. The fusion detection module is started: the negative pressure detection unit adjusts the detection pressure according to the curve type (0.1 MPa for the qualified curve and 0.15 MPa for the slight inclination curve); the test paper screening unit directionally strengthens the spraying according to the peak angle position;

[0049] e. The code scanning and tracing module records the full link data (including the torque curve, adjustment parameters and detection result), and the suction disc taking and placing module cancels the suction.

[0050] The beneficial effects of the present application are as follows:

[0051] 1. The glass steel packaging box sealing performance detection device of the present application improves the connection level and efficiency of the end cap, cooperates with the inclined ring groove through the J-shaped limiting claw, is quickly locked by the motor drive, and does not need manual alignment; the torque sensor monitors the level in real time, reduces the rework rate compared with the traditional way, significantly improves the connection efficiency, and does not need to configure a level sensor to detect the level after the end cap is installed, and the rework efficiency is low.

[0052] 2. The glass steel packaging box sealing performance detection device of the present application improves the sealing detection precision, and after the anti-inclination unit identifies the curve type, the detection module dynamically adjusts the strategy, such as locally strengthening the detection when slightly inclined, reducing the missed detection rate compared with the fixed pressure detection, and the detection is more accurate.

[0053] 3. The glass steel packaging box sealing performance detection device of the present application realizes leakage source differentiation and quality traceability, cooperates the test paper and the camera with the single spray pipe directional spraying to accurately distinguish the end cap or the box body leakage; the scanning code module is associated with the whole link data, and the unqualified rate is more than 5%, which is automatically warned, and the batch control is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0054] The present application will be further described below in conjunction with the drawings.

[0055] Figure 1 is the work flow chart of the present application;

[0056] Figure 2 is the perspective view of the box body and the sealing transparent cover of the present application;

[0057] Figure 3 is the structure sectional view of the clamping unit, the test paper screening unit and the proximal end thereof in the present application;

[0058] Figure 4 is Figure 3 the enlarged view of A in the present application;

[0059] Figure 5 is the structure view of the top conical groove of the box body;

[0060] Figure 6 is the sectional view of the bottom of the box body and the structure view of the inclined ring groove;

[0061] Figure 7 is Figure 6 the enlarged view of B in the present application.

[0062] In the diagram: 1. Suction cup pick-and-place module; 2. Docking module; 21. Snap-fit ​​unit; 22. Anti-tilt unit; 23. Sponge suction cup; 3. Fusion detection module; 31. Negative pressure detection unit; 32. Test paper screening unit; 4. Vertical groove; 41. Limiting component; 42. Limiting claw; 43. First cavity groove; 44. Second cavity groove; 45. Lifting block; 46. Squeezing block; 47. Sealing ring; 48. Box body; 49. End cap; 5. Through groove; 51. Angled annular groove; 52. Limiting groove; 53. Sealing joint; 6. Conical groove; 61. Sleeve; 62. Sealing transparent cover; 63. Motor; 64. Torque sensor; 7. Liquid storage ring box; 71. Annular spray box; 73. Connecting pipe; 74. Single spray pipe; 75. Test paper. Detailed Implementation

[0063] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0064] Example 1

[0065] like Figures 1 to 7 As shown in the embodiment of the present invention, a fiberglass packaging box sealing performance testing device includes: a suction cup picking and placing module 1, used to pick up the end cap 49 of the box body 48 and move it to the docking position of the box body 48; a docking module 2, disposed between the end cap 49 and the box body 48, including a snap-fit ​​unit 21 and an anti-tilt unit 22. The snap-fit ​​unit 21 achieves a quick sealing connection of the end cap 49 through the structural cooperation of the limiting claw 42 and the limiting ring groove. The anti-tilt unit 22 is equipped with a torque sensor 64 and an alarm component. The device detects the limiting claw 42 sliding along the inclined ring groove 51. The torque change curve during operation is used to determine the horizontality of the end cap 49 installation; the fusion detection module 3, located on the top of the box 48, includes a negative pressure detection unit 31 and a test strip screening unit 32. The negative pressure detection unit 31 is used to detect the internal sealing of the box 48; the test strip screening unit 32 is used to detect the sealing of the end cap 49, and according to the angle position corresponding to the torque abnormality, it directionally detects the sealing of the corresponding area; the barcode traceability module is used to identify the batch number information of the end cap 49 and associate and store the full-link data of "torque curve - horizontality judgment - sealing performance test".

[0066] In this invention, the suction cup loading and unloading module 1 includes: a sponge suction cup 23, the adsorption surface of which is provided with honeycomb-shaped ventilation holes for adapting to the curved contour of the end cap 49 and adsorbing the end cap 49; a multi-axis drive assembly for driving the sponge suction cup 23 to move along the X, Y, and Z axes and rotate around the Z axis to adjust the spatial posture of the end cap 49; and a negative pressure pump, which is connected to the sponge suction cup 23 and provides an adsorption negative pressure of 0.4-0.6 MPa.

[0067] The clamping unit 21 comprises the vertical slot 4 and the limiting assembly 41. The top of the end cover 49 is slidably connected to the limiting claw 42 through a group of vertical slots 4. The cross section of the limiting claw 42 is J-shaped. The first cavity groove 43 and the second cavity groove 44 are respectively arranged on the two sides of the vertical slot 4. The lifting block 45 and the extrusion block 46 are respectively fixedly connected to the two side walls of the limiting claw 42. The lifting block 45 and the extrusion block 46 are respectively located in the first cavity groove 43 and the second cavity groove 44. The spring is fixedly connected between the top of the lifting block 45 and the top of the first cavity groove 43. The sealing ring 47 is fixedly connected to the outer ring wall of the end cover 49 through the ring groove. The sealing ring 47 corresponds to the position of the extrusion block 46. When a pair of taper grooves 6 between the end cover 49 and the box body 48 are in contact during work, the limiting claw 42 is limited by the inclined ring groove 51 in the limiting assembly 41. When the end cover 49 starts to rotate, the J-shaped limiting claw 42 slides in the vertical slot 4. The spring provides a restoring force for the limiting claw 42 through the lifting block 45. When the end cover 49 is connected to the box body 48, the extrusion block 46 extrudes the sealing gasket to deform and fill the gap. At the same time, the limiting claw 42 cooperates with the limiting assembly 41 to achieve quick clamping and sealing effect.

[0068] The limiting assembly 41 comprises the through groove 5. A group of through grooves 5 are arranged on the top of the end cover 49. The through grooves 5 are matched with the limiting claw 42. The inclined ring groove 51 is arranged on the side wall of each through groove 5. A group of limiting grooves 52 are arranged on the bottom of the end cover 49. The limiting grooves 52 are communicated with the inclined ring groove 51. The depth of the inclined ring groove 51 gradually increases from the through groove 5 to the limiting groove 52. The limiting groove 52 and the inclined ring groove 51 are matched with the short end vertical side of the limiting claw 42. During work, the limiting claw 42 enters the inclined ring groove 51 through the through groove 5. With the increase of the depth of the ring groove, the limiting claw 42 continuously moves downward and drives the extrusion block 46 to extrude the sealing ring 47, so that the sealing ring 47 tightly contacts the taper groove 6 to avoid air leakage. The limiting claw 42 gradually slides into the limiting groove 52 and completes the clamping work, realizing the locking of the end cover 49 and the box body 48.

[0069] The anti-inclination unit 22 comprises a torque curve analysis module and a taper groove 6, the circular wall of the end cover 49 and the connecting groove of the box body 48 are both provided with the taper groove 6, and a pair of taper grooves 6 are matched, the taper grooves 6 are both provided with a pointed end downward, the top of the sponge suction cup 23 is fixedly connected with a sleeve 61, the top of the box body 48 is provided with a sealed transparent cover 62, the top of the sealed transparent cover 62 is fixedly connected with a motor 63, and the output end of the motor 63 and the sleeve 61 are fixedly connected with a torque sensor 64; the torque curve analysis module comprises identification of three characteristic curves: a qualified curve: the torque linearly and smoothly rises with the rotation angle, and the slope is between 0.05-0.1 N·m / °, and there is no peak value; a slight inclination curve: 1-2 torque peak values appear, and the torque peak value is less than or equal to 1.5 times the average torque, and the limiting claw 42 corresponding to the inclination direction rubs; a serious inclination curve: continuous torque fluctuation appears, and the fluctuation amplitude is greater than 30% or a single peak value is greater than or equal to 2 times the average torque; wherein, the qualified curve corresponds to the horizontal degree qualified, the slight inclination curve triggers the local strengthening detection of the fusion detection module 3, and the serious inclination curve directly alarms;

[0070] The above design solves the problems of poor connection level and low efficiency of the end cover 49: in the prior art, the threaded connection end cover 49 is easy to cause the horizontal degree deviation due to uneven force, and the multi-screw fixing is time-consuming and labor-consuming; in the embodiment, the J-shaped limiting claw 42 of the clamping unit 21 is matched with the inclined ring groove 51, and the motor 63 can quickly lock without manual alignment; the torque sensor 64 of the anti-inclination unit 22 monitors the curve in real time, identifies the horizontal degree problem in advance, and compared with the traditional way, reduces the rework rate and improves the connection efficiency.

[0071] Solve the problem of missed detection and false detection of sealing detection: the existing fixed parameter detection does not consider the influence of the horizontal degree, and the local sealing defect caused by the inclination is easy to be missed, in the embodiment, after the anti-inclination unit 22 identifies the curve type, the fusion detection module 3 dynamically adjusts the strategy, such as triggering the local strengthening detection when the inclination is slight, compared with the traditional fixed pressure detection, the missed detection rate is reduced, and the detection accuracy is significantly improved.

[0072] Embodiment two

[0073] As shown in Figures 1-3 The test paper screening unit 32 comprises a liquid storage ring box 7, the outer circular wall of the sleeve 61 is fixedly connected with the liquid storage ring box 7 through a ring plate, the inner wall of the sealed transparent cover 62 is rotatably connected with a connecting plate, the connecting plate is fixedly connected with an annular spraying box 71, the annular spraying box 71 is provided with a group of spraying holes, the liquid storage ring box 7 is communicated with the annular spraying box 71 through a group of connecting pipes 73, the bottom of the liquid storage ring box 7 is provided with a group of single spraying pipes 74, and the single spraying pipes 74 correspond to the positions of the vertical grooves 4; the top of the end cover 49 is provided with test paper 75, and the test paper 75 is matched with the end cover 49, the test paper 75 covers the positions between the vertical grooves 4, the end cover 49 and the joint of the box body 48, and the positions of the spraying pipes correspond to the positions of the test paper 75 at the bottom edge of the end cover 49; a group of identification cameras are arranged in the sealed transparent cover 62.

[0074] The negative pressure detection unit 31 comprises: a medium conveying pipeline, the end of which is provided with a sealing joint 53 matched with the center connecting pipe 73 of the end cover 49; a pressure control assembly for adjusting the pressure in the box 48 to a detection pressure of 0.05-0.3 MPa and maintaining the pressure for 50-80 seconds; a leakage detection assembly comprising a pressure sensor and a test paper 75 color development identification unit, the measurement accuracy of the pressure sensor is ±0.001 MPa, and the test paper 75 color development identification unit identifies whether the detection test paper 75 at the joint between the end cover 49 and the box 48 is discolored through identification of the recognition camera.

[0075] The code scanning and tracing module comprises: a two-dimensional code scanner for reading the batch number two-dimensional code on the surface of the end cover 49; a data storage unit for storing the associated information of "end cover 49 batch number-horizontality detection data-sealing performance result-detection time"; an abnormal early warning unit for automatically issuing a batch quality early warning when the unqualified rate of the end cover 49 of the same batch number exceeds 5%.

[0076] The curve type output by the anti-inclination unit 22 is also used to trigger the pressure adjustment of the negative pressure detection unit 31: when the recognized curve is a qualified curve, the negative pressure detection unit 31 adjusts the pressure in the box 48 to 0.08-0.12 MPa; when the recognized curve is a slightly inclined curve, the negative pressure detection unit 31 adjusts the pressure in the box 48 to 0.15-0.2 MPa to make up for the insufficient local sealing surface pressure caused by the deviation of the horizontality, so as to avoid missed detection under the conventional negative pressure; when the recognized curve is a severely inclined curve, the negative pressure detection unit 31 does not start detection.

[0077] It also comprises a linkage control module electrically connected with the suction disc taking and placing module 1, the docking module 2, the fusion detection module 3 and the code scanning and tracing module, respectively, for controlling the modules to work in the following time sequence: a, the suction disc taking and placing module 1 grabs the end cover 49 and moves it to above the box 48 for initial guiding docking of the taper groove 6; b, the motor 63 drives the end cover 49 to rotate, the limiting claw 42 starts to slide along the inclined ring groove 51, and the torque sensor 64 synchronously collects the real-time torque value; c, the torque curve analysis module of the anti-inclination unit 22 dynamically judges the curve type; step one: if it is a qualified curve, the clamping unit 21 is completely locked, and step d is executed; step two: if it is a slightly inclined curve, the peak angle position is recorded, and the clamping unit 21 is completely locked before step d is executed; step three: if it is a severely inclined curve, the rotation is immediately stopped, the alarm assembly is started, and the suction disc taking and placing module 1 adjusts the posture of the end cover 49 and then returns to step b; d, the fusion detection module 3 is started: the negative pressure detection unit 31 adjusts the detection pressure according to the curve type; the test paper screening unit 32 strengthens the jet in the direction according to the peak angle position; e, the code scanning and tracing module records the whole link data, and the suction disc taking and placing module 1 cancels the adsorption.

[0078] The embodiment solves the problems of difficult leakage source positioning and insufficient detection evidence: the existing pressure decay method can only determine whether there is leakage, and cannot locate the leakage source; the test paper screening unit 32 sprays directionally through a single spray pipe 74, and combines the test paper 75 covering the joint and the vertical groove 4, and cooperates with the recognition camera to accurately distinguish whether the end cover 49 or the box body 48 leaks; the high-precision pressure sensor detects whether the box body 48 leaks, and the test paper 75 colorimetrically detects whether it is leakage at the end cover 49, so that the leakage source can be distinguished; in actual situations, the possibility of leakage caused by poor quality of the sealing gasket of the end cover 49 or installation of the end cover 49 is relatively large, and the end cover 49 and the box body 48 are integrally formed by a mold, so the probability of leakage is relatively low.

[0079] The embodiment solves the problems of difficult quality traceability and difficult batch risk control: the detection data of the existing technology is independently stored, and the problem source cannot be associated with batch number traceability; the code scanning traceability module of the embodiment stores the “batch number-levelness-sealing result” full-link data in association, automatically warns when the unqualified rate of the same batch number is more than 5%, and quickly locates whether the end cover 49 batch defect or the detection parameter problem, so that the batch of defective products is avoided from flowing out, and the batch quality control efficiency is improved; the torque curve analysis module of the anti-inclination unit 22 can identify the levelness of the end cover 49 (qualified / mildly inclined / severely inclined), and the negative pressure detection unit 31 of the fusion detection module can dynamically adjust the detection pressure according to the curve type, such as the regular negative pressure corresponding to the qualified curve, the higher negative pressure corresponding to the mildly inclined curve, so as to make up for the insufficient pressure of the local sealing surface caused by the poor levelness and avoid the leakage under the regular negative pressure.

[0080] The linkage control module of the embodiment coordinates each module according to a fixed time sequence, and the whole process from the end cover 49 grabbing, docking, detection to data recording is automated, without manual intervention; and the posture of the end cover 49 is automatically adjusted for the severely inclined curve, so that the multi-process rework is avoided, and the batch production demand is met.

[0081] The above front, rear, left, right, up and down are based on the Figure 1 in the drawings, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and the like.

[0082] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the scope of protection of the present application.

[0083] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A device for testing the sealing performance of fiberglass packaging boxes, characterized in that: Include: Suction cup pick-and-place module (1) for grabbing the end cover (49) of the box (48) and moving it to the docking position of the box (48); Docking module (2) is arranged between the end cover (49) and the box (48), including clamping unit (21) and anti-inclination unit (22), the clamping unit (21) is matched with the structure of the limiting claw (42) and the limiting ring groove, the quick sealing connection of the end cover (49) is realized, the anti-inclination unit (22) is provided with torque sensor (64) and alarm assembly, the torque change curve when the limiting claw (42) slides along the inclined ring groove (51) is detected, the levelness of the end cover (49) is judged; Fusion detection module (3) is arranged at the top of the box (48), including negative pressure detection unit (31) and test paper screening unit (32), the negative pressure detection unit (31) is used for detecting the sealing performance of the box (48); the test paper screening unit (32) is used for detecting the sealing performance of the end cover (49), and the sealing performance of the corresponding area is detected according to the angle position corresponding to the torque anomaly; The code scanning and tracing module is used to identify the batch number information of the end cover (49) and store the full-link data of "torque curve-levelness determination-sealing performance detection" in association; The clamping unit (21) includes vertical slot (4) and limiting assembly (41), the top of the end cover (49) is connected with the limiting claw (42) through a group of vertical slots (4), and the cross section of the limiting claw (42) is J-shaped, first cavity (43) and second cavity (44) are arranged on both sides of the vertical slot (4), lifting block (45) and extrusion block (46) are respectively arranged on the side wall of the limiting claw (42), and the lifting block (45) and the extrusion block (46) are respectively located in the first cavity (43) and the second cavity (44); the spring is arranged between the top of the lifting block (45) and the top of the first cavity (43), the sealing ring (47) is arranged on the outer ring wall of the end cover (49) through the ring groove, and the sealing ring (47) and the extrusion block (46) are corresponding.

2. The glass fiber reinforced plastic packaging box sealing performance detection device according to claim 1, characterized in that: The limiting assembly (41) includes through groove (5), a group of through grooves (5) are arranged on the top of the end cover (49), and the through grooves (5) and the limiting claw (42) are matched, the side wall of a group of the through grooves (5) is provided with inclined ring groove (51), a group of limiting grooves (52) are arranged on the bottom of the end cover (49), and the limiting grooves (52) and the inclined ring groove (51) are communicated, the depth of the inclined ring groove (51) gradually increases from the through groove (5) to the limiting groove (52), and the limiting groove (52) and the inclined ring groove (51) are matched with the short end vertical side of the limiting claw (42).

3. The device for detecting the sealing performance of a glass fiber reinforced plastic packaging box according to claim 2, characterized in that: The anti-inclination unit (22) comprises a torque curve analysis module and a tapered groove (6), the tapered groove (6) is arranged on the circular wall of the end cover (49) and the connecting groove of the box body (48), and a pair of tapered grooves (6) are matched with each other, the tapered grooves (6) are arranged with pointed ends downward, the top of the end cover (49) is provided with a sponge suction cup (23), the top of the sponge suction cup (23) is fixedly connected with a sleeve (61), the top of the box body (48) is provided with a sealed transparent cover (62), the top of the sealed transparent cover (62) is fixedly connected with a motor (63), and a torque sensor (64) is fixedly connected between the output end of the motor (63) and the sleeve (61); the torque curve analysis module comprises three characteristic curves: Qualified curve: the torque increases linearly and smoothly with the rotation angle, the slope is between 0.05-0.1 N·m / °, and there is no peak value; Mild inclination curve: 1-2 torque peaks appear, and the torque peak is less than or equal to 1.5 times the average torque, and the limit claw (42) corresponding to the inclination direction rubs; Serious inclination curve: continuous torque fluctuation occurs, and the fluctuation amplitude is greater than 30% or the single peak value is greater than or equal to 2 times the average torque; Wherein, the qualified curve corresponds to the qualified levelness, the mild inclination curve triggers the local strengthening detection of the fusion detection module (3), and the serious inclination curve directly alarms.

4. The device for detecting the sealing performance of a glass fiber reinforced plastic packaging box according to claim 3, characterized in that: The test paper screening unit (32) comprises a liquid storage ring box (7), the outer circular wall of the sleeve (61) is fixedly connected with the liquid storage ring box (7) through a ring plate, the inner wall of the sealed transparent cover (62) is rotatably connected with a connecting plate, the connecting plate is fixedly connected with an annular spraying box (71), a group of spraying holes are arranged on the annular spraying box (71), the liquid storage ring box (7) is connected with the annular spraying box (71) in communication through a group of connecting pipes (73), a group of single spraying pipes (74) are arranged on the bottom of the liquid storage ring box (7), and the single spraying pipes (74) correspond to the positions of the vertical grooves (4); the top of the end cover (49) is provided with test paper (75), and the test paper (75) is matched with the end cover (49), the test paper (75) covers the positions between the vertical grooves (4), the end cover (49) and the joint of the box body (48), and the positions of the spraying pipes correspond to the positions of the test paper (75) at the bottom edge of the end cover (49); a group of identification cameras are arranged in the sealed transparent cover (62).

5. The device for detecting the sealing performance of a glass fiber reinforced plastic packaging box according to claim 1, characterized in that: The code scanning and tracing module comprises: A two-dimensional code scanner for reading the batch number two-dimensional code on the surface of the end cover (49); A data storage unit for storing the associated information of "end cover (49) batch number-horizontality detection data-sealing performance result-detection time"; An abnormal early warning unit, when the unqualified rate of the end cover (49) of the same batch number exceeds 5%, a batch quality early warning is automatically sent.

6. The device for detecting the sealing performance of a glass fiber reinforced plastic packaging box according to claim 3, characterized in that: The curve type output by the anti-inclination unit (22) is also used to trigger pressure adjustment of the negative pressure detection unit (31): when a qualified curve is identified, the negative pressure detection unit (31) adjusts the pressure in the box (48) to 0.08-0.12 MPa; when a slight inclination curve is identified, the negative pressure detection unit (31) adjusts the pressure in the box (48) to 0.15-0.2 MPa to compensate for the insufficient pressure of the local sealing surface caused by the deviation of the levelness, avoiding missed detection under the conventional negative pressure; when a serious inclination curve triggers an alarm, the negative pressure detection unit (31) does not start detection.

7. The device for detecting the sealing performance of a glass fiber reinforced plastic packaging box according to claim 1, characterized in that: It also includes a linkage control module electrically connected with the suction cup taking and placing module (1), the docking module (2), the fusion detection module (3) and the code scanning and tracing module, for controlling each module to work in the following time sequence: a. The suction cup taking and placing module (1) grabs the end cover (49) and moves it to above the box (48), and the taper groove (6) preliminarily guides the docking; b. The motor (63) drives the end cover (49) to rotate, the limiting claw (42) starts to slide along the inclined ring groove (51), and the torque sensor (64) synchronously collects the real-time torque value; c. The torque curve analysis module of the anti-inclination unit (22) dynamically judges the curve type; Step one: if it is a qualified curve, the clamping unit (21) is completely locked, and step d is executed; Step two: if it is a slight inclination curve, the peak angle position is recorded, and the clamping unit (21) is completely locked before step d is executed; Step three: if it is a serious inclination curve, the rotation is immediately stopped, the alarm component is started, and the suction cup taking and placing module (1) adjusts the posture of the end cover (49) and returns to step b; d. The fusion detection module (3) starts: the negative pressure detection unit (31) adjusts the detection pressure according to the curve type; the test paper screening unit (32) intensively sprays according to the peak angle position; e. The code scanning and tracing module records the full-link data, and the suction cup taking and placing module (1) cancels the adsorption.

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