A strength detection device for cigarette case paperboard selection

Abstract

The application relates to the technical field of strength detection, and discloses a strength detection device for cigarette case paperboard selection, which can be matched with a cigarette case to simulate a multi-form environment, realize the introduction of environmental variable factors during the strength detection of the cigarette case paperboard, and is more rich in detection data, more close to the use environment of the paperboard cigarette case in the detection environment, and stronger in the reference of the detection data. The device comprises a paperboard cigarette case, a mounting base and a detection assembly. The detection assembly comprises an outer supporting ring and a top support. The mounting base is connected with a plane table frame. The outer supporting ring is arranged below the top support. The outer supporting ring and the top support are fixedly installed on the plane table frame. A hemispherical supporting table is arranged in the outer supporting ring. A conical spring is connected between the hemispherical supporting table and the mounting base. An electric operation mechanism is installed in the top support. The bottom end of the electric operation mechanism is provided with a kneading table. The top end of the hemispherical supporting table and the bottom end of the kneading table are provided with embedded grooves. Contact plates are detachably arranged in the two embedded grooves.

Description

Technical Field

[0001] This invention relates to the field of strength testing technology, and specifically to a strength testing device for selecting cigarette box cardboard. Background Technology

[0002] As is well known, the strength requirements of cigarette box cardboard cover multiple aspects such as edge crush strength, bursting strength, compressive strength and adhesive strength. These indicators together determine the quality and applicability of the cardboard cigarette box, ensuring that it can effectively protect the cigarettes inside and meet the basic functions of packaging. To facilitate the selection of cigarette box cardboard, we propose a strength testing device for selecting cigarette box cardboard.

[0003] A search revealed that Chinese patent application number CN202322741824.1 discloses a cigarette box cardboard strength tester. Its general description includes a mounting base, a first clamp fixedly connected to the upper surface of the mounting base, a limiting groove on the upper surface of the first clamp, a clamping and stretching assembly on the upper surface of the mounting base, a hollow interior, and two threaded rods rotatably connected to the bottom wall of the mounting base. The upper ends of the two threaded rods rotatably extend through the upper surface of the mounting base. Lifting plates are threaded onto the outer surfaces of the two threaded rods located outside the mounting base. A second clamp is fixedly connected to the adjacent surfaces of the two lifting plates. In use, the first and second clamps secure the stretched paper, and the limiting ring and limiting groove compress the cardboard, increasing the strength of the cardboard against the clamp. The Chinese patent application CN202323490509.2 discloses a cardboard puncture strength testing device, which is roughly described as follows: A base is included, a support frame is fixedly connected to the top of the base, an electric cylinder is bolted to the top of the support frame, the piston end of the electric cylinder passes through the support frame and is fixedly connected to a lifting seat, a movable component is fixedly connected to the bottom of the lifting seat, a fixed seat is fixedly connected to the bottom of the movable component, a fixed block is installed at the bottom of the fixed seat, an adjustment mechanism is installed at one end of the fixed block, and pressure-resistant columns and needle-shaped columns are respectively installed at both ends of the mounting seat. A test platform is fixedly connected to the upper surface of the base, and a fixed structure is installed at the top of the test platform. During use, the testing device can simultaneously perform pressure resistance testing and puncture strength testing.

[0004] While the aforementioned existing technical solutions can test the strength of cardboard, and cardboard cigarette boxes are the main structure protecting cigarettes, their core function is to protect the quality of cigarettes, prevent them from being crushed or broken, and also prevent the release of cigarette odor, moisture absorption, and mold, while increasing the product's texture. However, considering the actual usage environment of cigarette boxes, in most cases, cardboard cigarette boxes not only play a major role in the centralized storage of cigarettes, but also play an important role when smokers carry them with them. The aforementioned technical solutions are difficult to simulate the specific conditions of cardboard cigarette boxes during use, and the testing methods need to be further improved. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a strength testing device for selecting cigarette box cardboard. This device can simulate various usage environments for cigarette boxes, enabling the strength testing of cigarette box cardboard while introducing environmental variables. This results in richer test data, a test environment that more closely matches the usage environment of the cardboard cigarette box, and more reliable test data.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a strength testing device for selecting cigarette box cardboard, comprising a cardboard cigarette box and a mounting base, and further comprising a testing component, the testing component comprising an outer support ring and a top support, a flat table frame fixedly connected to the mounting base, the outer support ring being disposed under the top support, both the outer support ring and the top support being fixedly mounted on the flat table frame, a hemispherical support being disposed within the outer support ring, a conical spring being connected between the hemispherical support and the mounting base, an electric operating mechanism being installed within the top support, a kneading table being installed at the bottom end of the electric operating mechanism, an embedding groove being provided at the top end of the hemispherical support and the bottom end of the kneading table, and a contact plate being detachably disposed in both embedding grooves, the cardboard cigarette box being placed between the two contact plates, and a space-creating mechanism being installed on the flat table frame.

[0007] Preferably, the electric operating mechanism includes a lifting frame, an electric lifting rod, and a servo motor. The electric lifting rod is installed at the top of the top support, and the top support has a vertical through hole. The output rod of the electric lifting rod passes through the vertical through hole, and the bottom end of the output rod is fixedly connected to an active lifting frame. A half-frame is fixedly connected to the lifting frame, and an edge-sealing frame is fixedly connected to the half-frame. The active lifting frame is slidably connected between the half-frame and the edge-sealing frame. A force-transmitting spring is fixedly connected inside the half-frame, and a force-transmitting block is fixedly connected to the force-transmitting spring. The active lifting frame... An installation slot is provided, in which a pressure sensor is installed. A force transmission block is slidably connected within the installation slot and has a contact surface that matches the pressure sensor. A servo motor is installed at the top of the lifting frame, and a rotating frame is rotatably connected inside the lifting frame. The servo motor drives the rotation of the rotating frame. An adjustable actuating structure is installed inside the rotating frame to drive the kneading table. Multiple external hanging ears are fixedly connected to the outside of the kneading table, and each of the multiple external hanging ears is fixedly connected to a connecting spring, which is connected to the lifting frame.

[0008] Preferably, the adjustable actuation structure includes a sliding frame and an actuation shaft. The sliding frame is slidably connected inside the rotating frame, and the actuation shaft is fixedly connected to the bottom end of the sliding frame. The actuation shaft is rotatably connected to the kneading table. A threaded rod is threadedly fitted inside the rotating frame. The threaded rod is rotatably connected to the sliding frame. A prism-shaped rotating cylinder is slidably connected outside the threaded rod. A rotating seat is rotatably connected outside the prism-shaped rotating cylinder. The rotating seat is fixedly connected to the rotating frame.

[0009] Preferably, the rotating frame is provided with a bend cavity and a bend groove, the bend cavity and the bend groove are connected, an arc-shaped strip is slidably connected in the bend cavity, a scale strip is fixedly connected to the arc-shaped strip, the scale strip is set in the bend groove, an arc-shaped spring is fixedly connected in the bend cavity, the arc-shaped spring is fixedly connected to the arc-shaped strip, an indicator is provided on the rotating frame, a traction rope is connected to the arc-shaped strip, a drive column is rotatably connected to the threaded rod, the traction rope is fixedly connected to the drive column, a round-headed guide cylinder is fixedly connected in the rotating frame, and the drive column is inserted into the round-headed guide cylinder.

[0010] Preferably, a drive spur gear is mounted on the output spindle of the servo motor, and the drive spur gear meshes with a transmission spur gear, which is fixedly connected to the rotating frame.

[0011] Preferably, the space-creating mechanism includes a lifting ring, an expanding ring at the top of the lifting ring, an annular groove at the top of the expanding ring, a sealing rubber ring inside the annular groove, two arc-shaped sliding strips fixedly connected to the bottom of the lifting ring, two arc-shaped hole holes on the flat table frame, the two arc-shaped sliding strips slidably connected to the two arc-shaped hole holes respectively, a synchronization strip fixedly connected to the bottom of the two arc-shaped sliding strips, a limit spring connected to the synchronization strip, the limit spring connected to the mounting base, multiple air inlets inside the expanding ring, an air inlet chamber inside the lifting ring, all of the multiple air inlets communicating with the air inlet chamber, and a quick-connect pipe fixedly connected to the outside of the lifting ring, the quick-connect pipe communicating with the air inlet chamber.

[0012] Preferably, a desktop support is fixedly connected to the top of the mounting base, the flat table frame is fixedly connected to the desktop support, and the flat table frame is provided with a side protrusion area. A lower extension bar is fixedly connected to the desktop support, the lower extension bar is rotatably connected to a fixed rotating frame, the fixed rotating frame is fixedly connected to the limiting spring, the limiting spring is fixedly connected to an adjusting rotating frame, and the adjusting rotating frame is rotatably connected to the synchronization bar.

[0013] Preferably, the lifting frame is externally fixedly connected to an extended sealing ring, which matches the sealing rubber ring. The bottom end of the lifting frame is fixedly connected to multiple bottom connecting columns, and multiple connecting springs are respectively fixedly connected to multiple bottom connecting columns.

[0014] Preferably, the bottom end of the top bracket is fixedly connected to three support columns, all three support columns are fixedly connected to the flat table frame, and support sleeves are slidably connected to the outside of each of the three support columns, and all three support sleeves are fixedly connected to the lifting frame.

[0015] Preferably, the rotating cylinder is fixedly connected to an external hexagonal drive block, the external hexagonal drive block is provided with multiple strip through holes, the mounting base is provided with an auxiliary operation notch, the synchronization bar is fixedly connected to an operating handle, and the mounting base is provided with multiple stepped assembly holes.

[0016] Compared with the prior art, the present invention provides a strength testing device for selecting cigarette box cardboard, which has the following beneficial effects:

[0017] (1) In this invention, the design of the detection component can form a spatial structure for insertion and detection of the paperboard cigarette box made of matching cigarette box paperboard, ensuring effective detection of the paperboard cigarette box while simulating multiple usage environments of the matching cigarette box, thereby realizing the strength detection of the paperboard cigarette box.

[0018] (2) In this invention, by equipping the electric working mechanism, the kneading table is provided with an installation structure relative to the top support, which also facilitates driving the kneading table, thereby facilitating the active driving of the contact plate on the top of the cardboard cigarette box relative to the cardboard cigarette box, and ultimately facilitating the matching cardboard cigarette box to form a detection motion.

[0019] (3) In this invention, the design of the space creation mechanism facilitates the formation of an external space for the matching cardboard cigarette box, which can introduce environmental variable factors, making the test data richer, the test environment more in line with the use environment of the cardboard cigarette box, and the test data more referential. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the entire invention;

[0021] Figure 2 For the present invention Figure 1 A magnified schematic diagram of the local structure at point A;

[0022] Figure 3 This is a three-dimensional structural schematic diagram showing a partial cross-section of the present invention;

[0023] Figure 4 For the present invention Figure 3 A magnified schematic diagram of the local structure at point B;

[0024] Figure 5 For the present invention Figure 3 A magnified schematic diagram of the local structure at point C;

[0025] Figure 6 This is a partial cross-sectional three-dimensional structural schematic diagram of the active lifting frame, half-frame, and force transmission spring of the present invention.

[0026] Figure 7 This is a partial cross-sectional, bottom-view, three-dimensional structural schematic diagram of the active lifting frame of the present invention.

[0027] Figure 8 This is a partial cross-sectional three-dimensional structural diagram of the sliding frame, actuating shaft, and threaded rod of the present invention.

[0028] Figure 9 This is a three-dimensional structural diagram of the mounting base, external support ring, and flat table frame of the present invention.

[0029] Figure 10 This is a three-dimensional structural diagram of the mounting base of the present invention;

[0030] Figure 11 This is a three-dimensional structural diagram of the invention viewed from below.

[0031] Figure 12 For the present invention Figure 11A magnified schematic diagram of the local structure at point D;

[0032] Figure 13 For the present invention Figure 11 A magnified schematic diagram of the local structure at point E;

[0033] Figure 14 This is a three-dimensional structural diagram of the top support, scale strip, and external hexagonal drive block of the present invention.

[0034] Figure 15 This is a three-dimensional structural diagram showing the disassembled components of the top support, hemispherical support, and conical spring of the present invention.

[0035] Figure 16 This is a three-dimensional structural diagram of the contact plate of the present invention;

[0036] Figure 17 This is a three-dimensional structural diagram of the invention viewed from a different angle.

[0037] In the diagram: 1. Cardboard cigarette box; 2. Mounting base; 3. External support ring; 4. Top bracket; 5. Flat table frame; 6. Hemispherical support; 7. Conical spring; 8. Kneading table; 9. Contact plate; 10. Lifting frame; 11. Electric lifting rod; 12. Servo motor; 13. Active lifting frame; 14. Semi-frame; 15. Edge sealing frame; 16. Force transmission spring; 17. Force transmission block; 18. Mounting slot; 19. Pressure sensor; 20. Contact surface; 21. Rotating frame; 22. External hanging ear; 23. Connecting spring; 24. Sliding frame; 25. Actuating shaft; 26. Threaded rod; 27. Prism rotating cylinder; 28. Rotating seat; 29. ​​Bend cavity; 30. Bend groove; 31. Arc strip; 32. Scale 33. Curved spring; 34. Indicator; 35. Traction rope; 36. Transmission column; 37. Drive spur gear; 38. Transmission spur gear; 39. Lifting ring; 40. Expanding ring; 41. Sealing rubber ring; 42. Curved slide bar; 43. Synchronizing bar; 44. Limiting spring; 45. Air inlet; 46. Air inlet chamber; 47. Quick-connect pipe; 48. Desktop support; 49. Side protrusion area; 50. Lower extension bar; 51. Fixed connecting frame; 52. Adjustable connecting frame; 53. Outer sealing ring; 54. Bottom connecting column; 55. Support column; 56. Support sleeve; 57. External hexagonal drive block; 58. Bar through hole; 59. Auxiliary operation notch; 60. Operating handle; 61. Stepped assembly hole. Detailed Implementation

[0038] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0039] For examples, please refer to Figures 1-17A strength testing device for selecting cigarette box cardboard includes a cardboard cigarette box 1 and a mounting base 2, and a testing component. The testing component includes an outer support ring 3 and a top support 4. A flat table frame 5 is fixedly connected to the mounting base 2. The outer support ring 3 is located below the top support 4. Both the outer support ring 3 and the top support 4 are fixedly installed on the flat table frame 5. A hemispherical support 6 is provided inside the outer support ring 3. A conical spring 7 connects the hemispherical support 6 and the mounting base 2. An electric operating mechanism is installed inside the top support 4. A kneading table 8 is installed at the bottom of the electric operating mechanism. The electric operating mechanism includes a lifting frame 10, an electric lifting rod 11, and a servo motor 12. Three support columns 55 are fixedly connected to the bottom of the top support 4. The three support columns 55 are all fixedly connected to the flat table frame 5. On the table frame 5, three support columns 55 are slidably connected to support sleeves 56, and the three support sleeves 56 are fixedly connected to the lifting frame 10. The electric lifting rod 11 is installed at the top of the top bracket 4, and the top bracket 4 is provided with a vertical through hole. The output rod of the electric lifting rod 11 passes through the vertical through hole, and the bottom end of the output rod of the electric lifting rod 11 is fixedly connected to the active lifting frame 13. A half frame 14 is fixedly connected to the lifting frame 10, and an edge sealing frame 15 is fixedly connected to the half frame 14. The active lifting frame 13 is slidably connected between the half frame 14 and the edge sealing frame 15. A force transmission spring 16 is fixedly connected inside the half frame 14, and a force transmission block 17 is fixedly connected to the force transmission spring 16. An installation groove 18 is opened on the active lifting frame 13, and a pressure sensor 19 is installed in the installation groove 18. The force transmission block 17 is slidably connected in the mounting groove 18, and the force transmission block 17 is provided with a contact surface 20 that matches the pressure sensor 19 to ensure accurate pressure transmission. The servo motor 12 is installed at the top of the lifting frame 10. A rotating frame 21 is rotatably connected inside the lifting frame 10. A drive spur gear 37 is installed on the output shaft of the servo motor 12. The drive spur gear 37 meshes with a transmission spur gear 38, which is fixedly connected to the rotating frame 21. The servo motor 12 is used to drive the rotation of the rotating frame 21. An adjustable actuation structure is installed inside the rotating frame 21. The adjustable actuation structure is used to drive the kneading table 8. Multiple external hanging ears 22 are fixedly connected to the outside of the kneading table 8. Each of the multiple external hanging ears 22 is fixedly connected with a connecting spring 23. Springs 23 are all connected to the lifting frame 10. Through the electric operating mechanism, a mounting structure is provided for the kneading table 8 relative to the top support 4, facilitating the driving of the kneading table 8. This, in turn, facilitates the active driving of the contact plate 9 on the top of the cardboard cigarette box 1 relative to the cardboard cigarette box 1, ultimately facilitating the detection movement of the matching cardboard cigarette box 1. The adjustable toggle structure includes a sliding frame 24 and a toggle shaft 25. The sliding frame 24 is slidably connected within the rotating frame 21, and the toggle shaft 25 is fixedly connected to the bottom end of the sliding frame 24. The toggle shaft 25 is rotatably connected to the kneading table 8. A threaded rod 26 is threaded into the rotating frame 21, rotatably connected to the sliding frame 24. A prism-shaped rotating cylinder 27 is slidably connected to the threaded rod 26, and an external hexagonal drive block 57 is fixedly connected to the prism-shaped rotating cylinder 27.The external hexagonal drive block 57 is provided with multiple through holes 58 to facilitate the rotation drive of the prism rotating cylinder 27. A rotating seat 28 is rotatably connected to the prism rotating cylinder 27, and the rotating seat 28 is fixedly connected to the rotating frame 21. Under the threaded engagement between the threaded rod 26 and the rotating frame 21, rotating the adjusting threaded rod 26 will cause the sliding frame 24 to slide relative to the rotating frame 21, thereby causing a position change in the actuating shaft 25 at the bottom of the sliding frame 24. The greater the offset of the actuating shaft 25 relative to the rotation axis of the rotating frame 21, the greater the rotational jump amplitude of the kneading table 8, and ultimately the greater the amplitude of the kneading motion on the cardboard cigarette box 1.

[0040] It should be further explained that the rotating frame 21 is provided with a bent cavity 29 and a bent groove 30. The bent cavity 29 is connected to the bent groove 30. An arc-shaped strip 31 is slidably connected in the bent cavity 29. A scale strip 32 is fixedly connected to the arc-shaped strip 31 and is set in the bent groove 30. An arc-shaped spring 33 is fixedly connected in the bent cavity 29 and is fixedly connected to the arc-shaped strip 31. An indicator 34 is provided on the rotating frame 21. A traction rope 35 is connected to the arc-shaped strip 31. A drive column 36 is rotatably connected to the threaded rod 26. The traction rope 35 is fixedly connected to the drive column 36. A round-headed guide tube is fixedly connected in the rotating frame 21. The drive column 36 is inserted into the round-headed guide tube. With the combined action of the traction rope 35 and the drive column 36... When the sliding frame 24 changes position within the rotating frame 21, it can cause the arc-shaped strip 31 to move accordingly, thereby causing the scale strip 32 to change position relative to the indicator 34, ultimately indicating the adjustment range of the sliding frame 24, so as to clarify the adjustment range of the offset shaft 25. The top of the hemispherical support 6 and the bottom of the kneading table 8 are both provided with embedding grooves, and contact plates 9 can be detachably installed in both embedding grooves. The cardboard cigarette box 1 is placed between the two contact plates 9. Through the design of the detection component, the cardboard cigarette box 1 made of matching cigarette box cardboard can form a space structure for insertion and detection, ensuring that the cardboard cigarette box 1 can be effectively detected while simulating multiple usage environments with matching cigarette boxes, thereby realizing the strength detection of cigarette box cardboard.

[0041] Furthermore, a space-creating mechanism is installed on the flat table frame 5. This mechanism includes a lifting ring 39, with an expanding ring 40 at its top. The expanding ring 40 has an annular groove at its top, and a sealing rubber ring 41 is installed inside the annular groove. Two curved sliding strips 42 are fixedly connected to the bottom of the lifting ring 39. The flat table frame 5 has two curved strip holes, and the two curved sliding strips 42 are slidably connected to these holes. Synchronizing strips 43 are fixedly connected to the bottom of the two curved sliding strips 42, and limiting springs 44 are connected to the synchronous strips 43. The limiting springs 44 are connected to the mounting base... The base 2 is connected to the expansion ring 40, which has multiple air inlets 45. The lifting ring 39 has an air inlet chamber 46, and all the air inlets 45 communicate with the air inlet chamber 46. A quick-connect pipe 47 is fixedly connected to the outside of the lifting ring 39, communicating with the air inlet chamber 46. Through the design of the space-creating mechanism, the matching cardboard cigarette box 1 can easily form a closed external space, introducing environmental variables and enriching the test data. The test environment is more closely aligned with the usage environment of the cardboard cigarette box, making the test data more reliable. A desktop support 48 is fixedly connected to the top of the mounting base 2. The flat table frame 5 is fixedly connected to the desktop support 48, which provides bottom support for the flat table frame 5 and enhances its structural stability. The flat table frame 5 has a side protrusion area 49 for temporary storage. The desktop support 48 is fixedly connected to a lower extension bar 50, which is rotatably connected to a fixed connecting frame 51. The fixed connecting frame 51 is fixedly connected to a limiting spring 44. The limiting spring 44 is fixedly connected to an adjusting connecting frame 52, which is rotatably connected to a synchronous bar 43. An externally extending sealing ring 53 is fixedly connected to the lifting frame 10. The sealing ring 53 matches the sealing rubber ring 41. Multiple bottom connecting columns 54 are fixedly connected to the bottom end of the lifting frame 10. Multiple connecting springs 23 are fixedly connected to the multiple bottom connecting columns 54 respectively. An auxiliary operation notch 59 is provided in the mounting base 2. An operating handle 60 is fixedly connected to the synchronization bar 43. Manually gripping the operating handle 60 facilitates the application of driving force to the synchronization bar 43. The auxiliary operation notch 59 provides sufficient space for the position of the operating handle 60 to change. Multiple stepped mounting holes 61 are provided on the mounting base 2. Through the stepped mounting holes 61, it is convenient to fix the mounting base 2 relative to the outside.

[0042] In this embodiment, the electric lifting rod 11, servo motor 12, and pressure sensor 19 are all commercially available conventional devices known to those skilled in the art. In this invention, we only use them without modifying their structure or function. Their setting method, installation method, and electrical connection method can be easily explained by those skilled in the art by following the instructions for use. Therefore, we will not elaborate on them here.

[0043] In summary, the working principle of this strength testing device for selecting cigarette box cardboard is as follows: First, the entire device is placed at the location of use. If necessary, the mounting base 2 can be connected and fixed relative to the location through the stepped assembly hole 61. Simultaneously, the electric lifting rod 11, servo motor 12, and pressure sensor 19 are electrically installed, along with a controller. During use, the height of the output rod of the electric lifting rod 11 is changed by inputting a running command to the controller. Since the active lifting frame 13 is connected to the output rod of the electric lifting rod 11, the height of the active lifting frame 13 can be adjusted when the height of the output rod of the electric lifting rod 11 changes. Because the semi-frame 14 is equipped with upper and lower sliding limits that match the active lifting frame 13, and is subject to the gravity of components such as the lifting frame 10, rotating frame 21, and semi-frame 14, when the device is kneaded… Before the bottom of the platform 8 is supported by external force, the active lifting frame 13 will be in the upper limit of sliding relative to the semi-frame 14. In this state, the force transmission spring 16 has a small compression state or is about to enter the critical state of compression. The corresponding pressure sensor 19 reading is also small or close to zero. The pressure sensor 19 in this state forms an initial value reading and records the initial reading. Therefore, during the process of the active lifting frame 13 changing its height, the height of the lifting frame 10, the rotating frame 21 and the kneading platform 8 will also change, so that the distance between the kneading platform 8 and the hemispherical support 6 will be adjusted. When the relative distance between the kneading platform 8 and the hemispherical support 6 increases, it is convenient for the cardboard cigarette box 1 to be placed relative to the hemispherical support 6. When the cardboard cigarette box 1 is placed, it should be placed on the contact plate 9 on the hemispherical support 6. Conversely, when the height of the kneading platform 8 decreases, the contact plate 9 at the bottom of the kneading platform 8 will make vertical contact with the cardboard cigarette box 1.

[0044] Furthermore, by continuing to operate the electric lifting rod 11 to lower the height of the kneading table 8, pressure can be applied to the cardboard cigarette box 1 located between the two contact plates 9. During this process, since the cardboard cigarette box 1 supports the kneading table 8, and the kneading table 8 supports the sliding frame 24 via the actuating shaft 25, the sliding frame 24 supports the lifting frame 10 via the rotating frame 21, and the lifting frame 10 supports the half-frame 14, the half-frame 14 will move upward relative to the active lifting frame 13. The corresponding force transmission spring 16 will also be compressed. The compressed force transmission spring 16 will further press the pressure sensor 19 through the contact surface 20 on the force transmission block 17, thereby increasing the real-time reading of the pressure sensor 19. At this time, the amount of pressure applied can be obtained by subtracting the initial value reading from the real-time reading of the pressure sensor 19. The test pressure value of the cardboard cigarette box 1 forms the operation control of the electric lifting rod 11 until it enters the appropriate pressure application state of the cardboard cigarette box 1. In order to improve the detection richness of the cardboard cigarette box 1, the contact plates 9 with different surface structures can be replaced according to the needs of use. For example, the opposite side of the two contact plates 9 can be a structure with a pointed tip, so that the contact plates 9 and the cardboard cigarette box 1 have different structural contact effects. The embedding groove on the hemispherical support 6 and the embedding groove at the bottom of the kneading table 8 are provided with multiple positioning grooves. Permanent magnets are fixedly embedded in the multiple positioning grooves. Multiple positioning iron pillars are provided on the two contact plates 9. The multiple positioning iron pillars are matched with multiple embedding grooves respectively, so as to facilitate the insertion and positioning of the contact plates 9 relative to the embedding grooves. Through the magnetic attraction between the positioning iron pillars and the permanent magnets, the auxiliary positioning of the contact plates 9 in the embedding grooves is convenient, and the disassembly and replacement of the contact plates 9 are also convenient.

[0045] Continuing further, after the two contact plates 9 form a detection and pressing action on the cardboard cigarette box 1 between them, the relative position of the sliding frame 24 within the rotating frame 21 is adjusted according to the required kneading offset, so that the actuating shaft 25 deviates from the rotation axis of the rotating frame 21. During the adjustment process, a rotational force is applied to the external hexagonal drive block 57, thereby achieving the rotational adjustment of the threaded rod 26. Since the threaded rod 26 is threadedly connected to the rotating frame 21, and the threaded rod 26 is rotatably connected to the sliding frame 24, the rotation of the threaded rod 26 will cause the sliding frame 24 to rotate. 4. Position adjustment relative to the rotating frame 21: Due to the transmission action of the traction rope 35 and the transmission column 36, as well as the elastic tension of the arc spring 33, during adjustment, the arc strip 31 will rotate within the bend cavity 29 as the sliding frame 24 moves. The scale bar 32 on the arc strip 31 will also adjust relative to the indicator 34, thereby allowing for the reading of the position change of the sliding frame 24 relative to the rotating frame 21. This also facilitates the quantitative reading of the deviation of the actuating shaft 25 from the rotation axis of the rotating frame 21. The servo motor 12 is then started. 12. The operation drives the rotation of the spur gear 37, which in turn drives the rotation of the rotating frame 21 via the transmission spur gear 38. The rotation of the rotating frame 21 drives the rotation of the actuating shaft 25 via the sliding frame 24. The actuating shaft 25 rotates eccentrically with the rotating frame 21, causing the kneading table 8 to oscillate eccentrically around the axis of the rotating frame 21. At the same time, the connecting spring 23 on the outer ear 22 provides elastic restoring force, so that the kneading table 8 always maintains a stable reciprocating kneading motion to simulate the squeezing and friction state of the cardboard cigarette box 1 in a pocket, ultimately achieving contact on the upper side of the cardboard cigarette box 1. The detection movement of plate 9 causes the cardboard cigarette box 1 located between the two contact plates 9 to rub between the two relatively moving contact plates 9, simulating the state of a smoker placing cigarettes in their pocket and walking. Since the range of motion of the cardboard cigarette box 1 in the pocket is related to the range of motion of the smoker, such as when the range of motion of walking or running increases, the relative motion of the cardboard cigarette box 1 in the pocket will be greater. Therefore, the deviation of the actuating shaft 25 from the rotation axis of the rotating frame 21 can be selected according to the detection needs, thereby simulating various environments.

[0046] Furthermore, since the relative position between the hemispherical support 6 and the outer support ring 3 is adjustable, it is convenient to simulate different postures or composite pressures on the cardboard cigarette box 1. Considering that the pockets of the trousers may become damp due to the wearer's sweat in summer, the strength testing device for selecting the cardboard cigarette box can also simulate the usage conditions around the cardboard cigarette box 1. During operation, simply lift the synchronous bar 43 by operating the lever 60. Under the connection of the two arc-shaped sliding bars 42, the rise of the synchronous bar 43 will push the lifting ring 39 and the expanding ring 40 to rise. During this process, when the synchronous bar 43 is lifted, it drives the adjusting rotating connecting frame 52 to rotate around the fixed rotating connecting frame 51. The limiting spring 44 first undergoes elastic compression as the rotation angle changes, and then the adjusting rotating connecting frame 52 rotates around the fixed rotating connecting frame 51. After the connecting frame 52 rotates beyond the horizontal position, the synchronous bar 43 continues to rise, and the compression of the limiting spring 44 gradually decreases, providing a continuous pre-tightening force for the lifting ring 39. Subsequently, as the expanding ring 40 continues to rise, the sealing rubber ring 41 contacts the extended sealing ring 53, and humid air is introduced into the air inlet chamber 46 through the quick-connect pipe 47. The airflow gathers in the air inlet chamber 46 and is then evenly distributed into the interior of the expanding ring 40 through multiple air inlets 45, achieving the purpose of supplying humid air into the expanding ring 40. This creates an external humid environment for the cardboard cigarette box 1 under testing, simulating its use in a humid environment. Simultaneously, depending on testing needs, dry, hot air can also be introduced into the expanding ring 40 through the quick-connect pipe 47 to... The adhesive used to form the cardboard cigarette box 1 is subjected to heat resistance testing. After the test, the electric lifting rod 11 is operated to control the relative movement between the two contact plates 9, removing the cardboard cigarette box 1. The structural integrity and external wear of the cardboard cigarette box 1 are used to evaluate its structural strength and cardboard strength. If the cardboard cigarette box 1 has a complete structure and minimal wear on the outer surface, it indicates that the structural strength of the cardboard cigarette box 1 is high enough, and the strength of the selected cardboard is also sufficient. In order to simulate the protective effect of the cardboard cigarette box 1 on cigarettes, cigarettes can also be placed inside the cardboard cigarette box 1 before testing. In the above embodiments, the test description is mainly based on the cardboard cigarette box 1 as the corresponding target. In actual use, the cardboard used to prepare the cardboard cigarette box 1 can also be placed inside the cardboard cigarette box 1. The device is placed between two contact plates 9 and tested using the same aforementioned testing steps. Since the sealing rubber ring 41 is made of a relatively soft and deformable material such as nitrile rubber, after the sealing rubber ring 41 contacts the extended sealing ring 53, it can improve the contact sealing between the expanding ring 40 and the extended sealing ring 53, thereby improving the isolation between the environment inside the expanding ring 40 and the outside world. On the other hand, when the pressure value inside the expanding ring 40 is too high, the sealing rubber ring 41 is also the first part to fail in sealing. That is, under the action of high pressure inside the expanding ring 40, the sealing rubber ring 41 in contact with the extended sealing ring 53 will deform first, causing the seal to fail and resulting in pressure relief. And when the pressure inside the expanding ring 40 recovers, the sealing rubber ring 41 will also elastically reset.This is to restore the sealing effect between the enlarged ring 40 and the extended sealing ring 53.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for selecting cigarette box cardboard, comprising a cardboard cigarette box and a mounting base, characterized in that, It also includes a detection component, which comprises an outer support ring and a top bracket. A flat table frame is fixedly connected to the mounting base. The outer support ring is disposed under the top bracket. Both the outer support ring and the top bracket are fixedly mounted on the flat table frame. A hemispherical support is disposed within the outer support ring. A conical spring connects the hemispherical support to the mounting base. An electric operating mechanism is installed within the top bracket. A kneading table is installed at the bottom end of the electric operating mechanism. Embedding grooves are provided at the top end of the hemispherical support and the bottom end of the kneading table. Contact plates are detachably disposed within both embedding grooves. The cardboard cigarette box is placed between the two contact plates. A space-creating mechanism is installed on the flat table frame. The electric operating mechanism includes a lifting frame, an electric lifting rod, and a servo motor. The electric lifting rod... The electric lifting rod is installed at the top of the top bracket, which has a vertical through hole. The output rod of the electric lifting rod passes through the vertical through hole. The bottom end of the output rod of the electric lifting rod is fixedly connected to an active lifting frame. A half-frame is fixedly connected to the lifting frame, and an edge sealing frame is fixedly connected to the half-frame. The active lifting frame is slidably connected between the half-frame and the edge sealing frame. A force transmission spring is fixedly connected inside the half-frame, and a force transmission block is fixedly connected to the force transmission spring. An installation groove is provided on the active lifting frame, and a pressure sensor is installed in the installation groove. The force transmission block is slidably connected in the installation groove, and the force transmission block has a contact surface that matches the pressure sensor. A servo motor is installed at the top of the lifting frame, and a rotating frame is rotatably connected inside the lifting frame. The servo motor is used to drive the rotation of the rotating frame. An adjustable actuating structure is installed inside the rotating frame. This structure drives the kneading table. Multiple external lugs are fixedly connected to the kneading table, and each lug is fixedly connected to a connecting spring. These connecting springs are connected to the lifting frame. The adjustable actuating structure includes a sliding frame and an actuating shaft. The sliding frame is slidably connected inside the rotating frame, and the actuating shaft is fixedly connected to the bottom end of the sliding frame. The actuating shaft is rotatably connected to the kneading table. A threaded rod is threaded into the rotating frame and rotatably connected to the sliding frame. A rotating cylinder is slidably connected to the outside of the threaded rod, and a rotating mechanism is rotatably connected to the outside of the rotating cylinder. The rotating seat is fixedly connected to the rotating frame. The rotating frame has a bent cavity and a bent groove. The bent cavity and the bent groove are connected. An arc-shaped strip is slidably connected in the bent cavity. A scale strip is fixedly connected to the arc-shaped strip and is located in the bent groove. An arc-shaped spring is fixedly connected in the bent cavity and is fixedly connected to the arc-shaped strip. An indicator is provided on the rotating frame. A traction rope is connected to the arc-shaped strip. A transmission column is rotatably connected to the threaded rod. The traction rope is fixedly connected to the transmission column. A round-headed guide cylinder is fixedly connected in the rotating frame, and the transmission column is inserted into the round-headed guide cylinder.

2. The strength testing device for selecting cigarette box cardboard according to claim 1, characterized in that, A drive spur gear is mounted on the output spindle of the servo motor. The drive spur gear meshes with a transmission spur gear, which is fixedly connected to the rotating frame.

3. The strength testing device for selecting cigarette box cardboard according to claim 2, characterized in that, The space-creating mechanism includes a lifting ring, an expanding ring at its top, an annular groove at its top, and a sealing rubber ring within the annular groove. Two arc-shaped sliding strips are fixedly connected to the bottom of the lifting ring. Two arc-shaped holes are provided on the flat table frame. The two arc-shaped sliding strips are slidably connected to the two arc-shaped holes respectively. Synchronizing strips are fixedly connected to the bottom of the two arc-shaped sliding strips. Limiting springs are connected to the synchronization strips and are connected to the mounting base. Multiple air inlets are provided within the expanding ring, and an air inlet chamber is provided within the lifting ring. All the multiple air inlets communicate with the air inlet chamber. A quick-connect pipe is fixedly connected to the outside of the lifting ring, and the quick-connect pipe communicates with the air inlet chamber.

4. The strength testing device for selecting cigarette box cardboard according to claim 3, characterized in that, A desktop support is fixedly connected to the top of the mounting base. The flat table frame is fixedly connected to the desktop support, and a side protrusion area is provided on the flat table frame. A lower extension bar is fixedly connected to the desktop support. A fixed rotating bracket is rotatably connected to the lower extension bar. The fixed rotating bracket is fixedly connected to the limiting spring. An adjusting rotating bracket is fixedly connected to the limiting spring. The adjusting rotating bracket is rotatably connected to the synchronization bar.

5. The strength testing device for selecting cigarette box cardboard according to claim 4, characterized in that, An extended sealing ring is fixedly connected to the outside of the lifting frame. The extended sealing ring matches the sealing rubber ring. Multiple bottom connecting columns are fixedly connected to the bottom end of the lifting frame. Multiple connecting springs are fixedly connected to the multiple bottom connecting columns respectively.

6. The strength testing device for selecting cigarette box cardboard according to claim 5, characterized in that, The bottom of the top bracket is fixedly connected to three support columns, all of which are fixedly connected to the flat table frame. Support sleeves are slidably connected to the outside of each of the three support columns, and all three support sleeves are fixedly connected to the lifting frame.

7. The strength testing device for selecting cigarette box cardboard according to claim 6, characterized in that, The rotating cylinder is fixedly connected to an external hexagonal drive block, which has multiple through holes. The mounting base has an auxiliary operation notch, and the synchronization bar is fixedly connected to an operating handle. The mounting base has multiple stepped assembly holes.

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