Carton pressure intensity detection device

Abstract

The invention discloses a carton pressure strength detection device, which relates to the technical field of carton pressure detection and comprises a detection table, a mounting frame fixed at the rear end of the detection table and a hydraulic cylinder mounted at the top of the mounting frame. When the hydraulic cylinder drives the pressing plate to press downwards for detection, the switching disc is fixed, interference of shaking of the bearing part on the pressure sensor is eliminated, accuracy of detection data is guaranteed, the switching mechanism is linked with the switching disc to intermittently rotate during resetting, and stations can be rapidly switched to achieve continuous testing without an additional driving part; the tilting mechanism can drive the supporting plate to tilt by means of rotation of the switching disc, so that the carton slides down due to dead weight, and discharging is stable; the pushing mechanism is linked with a pushing frame through inclined movement of a supporting plate, the carton is actively pushed to solve the clamping stagnation problem, and the pushing reliability is improved through the diameter difference between an arc-shaped toothed plate and a fluted disc set; the three parts are linked through the same power source, so that the blanking is more stable and convenient, the equipment structure is compact, the detection efficiency is greatly improved, and the continuous detection requirement of large-batch cartons is met.

Description

Technical Field

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

[0002] Cardboard boxes are the most widely used packaging products. Depending on the materials used, there are corrugated cardboard boxes, single-layer cardboard boxes, and various specifications and models. As an indispensable part of modern logistics, cardboard boxes bear the responsibility of packaging, protecting products, and maintaining an aesthetically pleasing appearance. The most important function of a cardboard box is its excellent protective properties, and compressive strength is a comprehensive reflection of its protective performance and its most basic performance characteristic. The compressive strength of a cardboard box refers to the highest pressure that the box can withstand when placed vertically. Testing the compressive strength of cardboard boxes is conducted to prevent deformation, damage, and other adverse phenomena during handling, stacking, storage, and transportation due to insufficient strength.

[0003] Currently, existing carton pressure testing devices require manual intervention to transfer the carton after a single test. This not only significantly increases labor costs and operation time, but also makes it difficult to meet the continuous testing needs of large batches of cartons in large-scale production scenarios. At the same time, some devices with automatic feeding functions are prone to carton jamming due to the high degree of contact between the carton and the surface of the supporting structure. This reduces the smoothness and stability of the feeding process and can also easily cause damage to the appearance of the carton, thus affecting the overall efficiency and economy of the testing process. Summary of the Invention

[0004] The purpose of this invention is to provide a carton pressure strength testing device to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a carton pressure strength testing device, comprising a testing platform, a mounting frame fixed to the rear end of the testing platform, and a hydraulic cylinder mounted on the top of the mounting frame. The output end of the hydraulic cylinder is connected to a pressure sensor, and the bottom of the pressure sensor is connected to a pressure plate. The hydraulic cylinder, pressure sensor, and pressure plate cooperate to complete the strength testing of the carton.

[0006] A switching plate is movably connected to the top of the testing station, and trays with equal angles are movably connected to the periphery of the switching plate. A switching mechanism is provided between the mounting frame and the testing station, and the switching mechanism is used to realize the rapid switching between the testing position and the unloading position, while ensuring that the switching plate is fixed during testing so as to realize continuous testing. A tilting mechanism is provided between the trays and the testing station, and the tilting mechanism uses the rotational kinetic energy of the switching plate to drive the trays to tilt, so that the tested cartons can slide down for unloading by their own weight. A pushing mechanism is provided between the trays and the switching plate, and the pushing mechanism is used to actively push the cartons to solve the jamming problem caused by the cartons sticking to the trays.

[0007] By coordinating the switching plate with the pallet, switching mechanism, tilting mechanism, and pushing mechanism, the convenience and stability of material feeding can be directly improved by relying on the continuous action connection. It also makes the equipment structure more compact and significantly improves the degree of automation, thereby meeting the continuous inspection needs of large batches of cartons.

[0008] Preferably, the switching mechanism includes a rack fixed to the rear end of the pressure plate and a rotating column connected to the middle of the testing table via a bearing. The rotating column is used to drive the switching disk to rotate synchronously and intermittently to realize the switching of work positions. The rear end of the bottom of the testing table is connected to a rotating shaft via a bearing, and a bevel gear set is provided between the rotating shaft and the rotating column.

[0009] Preferably, a helical gear is fixedly connected to the end of the rotating shaft away from the bevel gear set, and a gear disk sleeved on the outside of the helical gear is meshed with one side of the rack. The gear disk is used to convert the linear power of the rack into rotational power, providing a power basis for subsequent workstation switching. A locking block that engages with the helical gear is slidably connected to one side inside the gear disk.

[0010] Preferably, the end of the locking block is provided with an inclined surface, a support spring is connected between the locking block and the gear plate, the locking block is elastically connected to the gear plate through the support spring, and the top of the rotating column is fixedly connected to the bottom of the switching disk.

[0011] Preferably, the tilting mechanism includes a support plate fixed at an equal angle to the bottom of the switching disk and a support shaft connected between the tray and the switching disk. The tray and the switching disk are rotatably connected via the support shaft. A pin is rotatably connected to the bottom end of the support plate. A movable plate is fixedly connected between the two pins. A torsion spring sleeved on the outside of the pins is connected between the movable plate and the support plate. The torsion spring provides a restoring force to the movable plate, so that the movable plate returns to its initial position after completing the tilting action.

[0012] Preferably, a support strip is fixedly connected to the side of the support plate, and the support strip is perpendicular to the support plate. A guide groove is provided at the top of the movable plate, and a guide groove is provided at the bottom of the support plate. A guide rod that passes through the support strip is slidably connected between the guide groove and the guide groove. The guide groove and the guide rod cooperate to convert the sliding of the guide rod into the tilting movement of the support plate. An inclined top plate is fixedly connected to one side of the top of the testing platform, and the inclined top plate provides inclined support for the movable plate, so that the movable plate deflects upward after contact. The inclined top plate is set as an isosceles trapezoidal structure.

[0013] Preferably, the pushing mechanism includes arc-shaped toothed plates symmetrically fixed on both sides of the pallet and a toothed disc assembly rotatably connected to the inner side of the switching disk. The toothed disc assembly meshes with the arc-shaped toothed plates, and the arc-shaped toothed plates rotate synchronously with the movable plate to provide rotational power to the toothed disc assembly. A connecting plate one is fixedly connected to the side of the toothed disc assembly near the pallet. A pusher is slidably connected to the outer side of the pallet. The pusher slides along the pallet and pushes it away from the pallet to solve the jamming problem. A connecting plate two is rotatably connected between the pusher and the connecting plate one, and the connecting plate two converts the rotational motion into the linear sliding motion of the pusher. A conveyor belt corresponding to the unloading position is provided on the side of the detection table, and the conveyor belt is used to receive the tested cartons that slide off the pallet to realize the conveying and collection of cartons.

[0014] Preferably, the gear plate assembly consists of a driving gear and a driven gear that mesh together, the connecting plate is fixedly connected to the driven gear, and the diameter of the arc-shaped gear plate is larger than the diameter of the gear plate assembly; both sides of the support plate are provided with sliding grooves, and the inner side of the push frame is fixed with a slider that slides in cooperation with the sliding groove, and the slider cooperates with the sliding groove to make the sliding of the push frame more stable.

[0015] Preferably, a limiting mechanism is provided between the testing platform and the rotating shaft, and the limiting mechanism is used to fix the switching disk during the testing process to prevent its shaking from affecting the accuracy of the pressure data. The limiting mechanism includes a support frame fixedly connected to the bottom of the testing platform and a limiting groove opened at an equal angle on the surface of the rotating shaft. A limiting plate that forms a locking structure with the limiting groove is slidably connected inside the support frame, and the limiting groove and the limiting plate cooperate to limit the rotating shaft and prevent the rotating shaft from moving synchronously when the gear disk rotates forward. The end of the limiting plate is provided with an inclined surface, and a return spring is fixedly connected between the limiting plate and the support frame, and the return spring provides a return force for the limiting plate.

[0016] Preferably, the bottom end of the switching disk is fixedly connected with support rods distributed at equal angles, and the top end of the detection table is provided with a support groove that forms a sliding structure with the support rods. The support rods and the support groove cooperate to make the rotation of the switching disk more stable.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. When the pressure plate of this carton is pressed down by the hydraulic cylinder, the switching plate is fixed to eliminate the interference of the bearing component shaking on the pressure sensor and ensure the accuracy of the test data. When the pressure plate is reset by the hydraulic cylinder, the switching plate rotates intermittently through the switching mechanism. The detection position and the unloading position can be quickly switched without the need for additional driving components, thereby realizing continuous detection.

[0019] 2. This carton pressure strength testing device uses the kinetic energy of the rotating switching plate to drive the tray to tilt via the tilting mechanism, so that the carton can slide down by its own weight without the need for an additional power source, and the unloading process is smooth and without damage.

[0020] 3. This carton pressure strength detection device enables the active pushing of cartons by using the movement of the pusher frame linked to the tilting of the pallet, thus solving the problem of material jamming caused by the carton sticking to the pallet. In addition, the diameter difference between the arc-shaped toothed plate and the toothed disc assembly allows the pusher frame to obtain a larger sliding stroke, making the pushing effect more reliable.

[0021] 4. This carton pressure strength testing device achieves switching, tilting, and pushing actions all through the same power source. This not only improves the convenience and stability of material feeding by relying on the continuous action connection, but also makes the equipment structure more compact and significantly improves the degree of automation. At the same time, the entire process of detection, switching, feeding, and anti-jamming is seamlessly connected, which not only greatly improves the overall efficiency of carton pressure testing, but also further ensures the accuracy of the test data, thereby meeting the continuous testing needs of large batches of cartons. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural diagram from a first perspective of the present invention;

[0023] Figure 2 This is a three-dimensional structural diagram from a second perspective of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the switching mechanism of the present invention;

[0025] Figure 4 This is a three-dimensional cross-sectional structural diagram of the switching mechanism of the present invention;

[0026] Figure 5 This is a three-dimensional cross-sectional structural diagram of the limiting mechanism of the present invention;

[0027] Figure 6 This is a three-dimensional structural diagram of the switching disk of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the tilting mechanism of the present invention in its working state;

[0029] Figure 8 This is a three-dimensional structural diagram of the tilting mechanism of the present invention in its non-working state;

[0030] Figure 9 This is a three-dimensional structural diagram of the pushing mechanism of the present invention in its working state;

[0031] Figure 10 This is a three-dimensional structural diagram of the pushing mechanism of the present invention in a non-working state;

[0032] Figure 11 This is a three-dimensional exploded view of the pusher and support plate of the present invention;

[0033] Figure 12 This is a three-dimensional cross-sectional structural diagram of the switching disk and the testing station of the present invention.

[0034] In the diagram: 1. Testing table; 2. Mounting bracket; 3. Hydraulic cylinder; 4. Pressure sensor; 5. Pressure plate; 6. Switching mechanism; 601. Rack; 602. Gear plate; 603. Support spring; 604. Locking block; 605. Helical gear; 606. Rotating shaft; 607. Bevel gear set; 608. Rotating column; 7. Tilting mechanism; 701. Support shaft; 702. Support plate; 703. Movable plate; 704. Guide groove one; 705. Guide groove two; 706. Support bar; 707. 708. Guide rod; 709. Torsion spring; 710. Pin; 8. Inclined top plate; 8. Pushing mechanism; 801. Arc-shaped toothed plate; 802. Toothed disc assembly; 803. Connecting plate one; 804. Connecting plate two; 805. Push frame; 806. Slider; 807. Slide groove; 9. Limiting mechanism; 901. Limiting groove; 902. Limiting plate; 903. Return spring; 904. Support frame; 10. Switching disc; 11. Pallet; 12. Conveyor belt; 13. Support rod; 14. Support groove. Detailed Implementation

[0035] 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.

[0036] Please see Figures 1-3 and Figure 6 , Figure 12 The present invention provides a technical solution: a carton pressure strength testing device, including a testing platform 1, a mounting frame 2 fixed to the rear end of the testing platform 1, and a hydraulic cylinder 3 installed on the top of the mounting frame 2. The hydraulic cylinder 3 is used to drive the pressure plate 5 to move vertically up and down to realize the pressure loading and reset of the carton. The output end of the hydraulic cylinder 3 is connected to a pressure sensor 4, which is used to collect pressure data of the carton in real time during the pressure process to realize strength detection. The bottom of the pressure sensor 4 is connected to the pressure plate 5, which is in direct contact with the carton and transmits the power of the hydraulic cylinder 3 to the carton to complete the pressure loading execution component.

[0037] The top of the testing table 1 is movably connected to a switching plate 10, which carries multiple trays 11 and rotates intermittently with the rotating column 608 to complete the transfer of workstations. The sides of the switching plate 10 are movably connected to trays 11 distributed at equal angles, and the trays 11 are used to stably place cartons.

[0038] Specifically, when the hydraulic cylinder 3 is working, the hydraulic cylinder 3 drives the pressure plate 5, which is equipped with the pressure sensor 4 at the top, and the rack 601 at the rear end of the pressure plate 5 to move vertically downwards in sync, so as to realize the pressure strength detection of the carton through the cooperation of the pressure plate 5 and the pressure sensor 4; after a single detection is completed, the hydraulic cylinder 3 drives the pressure plate 5 and the rack 601 to move vertically upwards in sync to reset.

[0039] exist Figures 1-4 In the middle section: A switching mechanism 6 is provided between the mounting frame 2 and the inspection table 1. The switching mechanism 6 is used to quickly switch between the inspection position and the unloading position, while ensuring that the switching disk 10 is fixed during inspection to enable continuous inspection. The switching mechanism 6 includes a rack 601 fixed to the rear end of the pressure plate 5 and a rotating column 608 connected to the middle of the inspection table 1 via a bearing. The rack 601 moves up and down synchronously with the pressure plate 5, converting linear motion into the rotational motion of the gear disk 602. The rotating column 608 drives the switching disk 10 to rotate synchronously and intermittently, realizing the switching of the workstation from "carton to be tested → inspection position, carton already tested → unloading position". The rear end of the bottom of the inspection table 1 is connected to a rotating shaft 606 via a bearing. The rotating shaft 606 transmits the rotational power of the helical gear 605 to the bevel gear set 607, realizing the horizontal transmission of power. A bevel gear set 607 is provided between the shaft 606 and the rotating column 608. A helical gear 605 is fixedly connected to the end of the shaft 606 away from the bevel gear set 607. When the helical gear 605 is engaged with the locking block 604, it receives the rotational power of the gear disk 602 and transmits it to the shaft 606. A gear disk 602 sleeved on the outside of the helical gear 605 is meshed on one side of the rack 601. The gear disk 602 is used to convert the linear power of the rack 601 into rotational power, providing a power basis for subsequent station switching. A locking block 604 that engages with the helical gear 605 is slidably connected to one side inside the gear disk 602. The locking block 604 cooperates with the support spring 603 through the end inclined surface to realize the power on / off control of "pressing down during detection → not engaging the helical gear 605, moving up during reset → engaging the helical gear 605".

[0040] Specifically, during the process of hydraulic cylinder 3 driving pressure plate 5 and rack 601 to move vertically upward and reset synchronously, the gear plate 602 meshes with rack 601, causing gear plate 602 to rotate synchronously in the opposite direction. Under the action of support spring 603, helical gear 605 and gear plate 602 are engaged by locking block 604, causing helical gear 605 and rotating shaft 606 to rotate. At the same time, the bevel gear set 607 causes rotating column 608 and switching disk 10 to rotate synchronously and intermittently by 45°, thereby moving the tested carton to the lower material feeding area and the carton to be tested to the test position, realizing continuous detection.

[0041] exist Figures 2-4 In the middle: the end of the locking block 604 is provided with a bevel, and a support spring 603 is connected between the locking block 604 and the gear disk 602. The support spring 603 provides elastic support for the locking block 604, so that the locking block 604 can "engage / disengage" with the helical gear 605 according to the rotation direction of the gear disk 602. The locking block 604 is elastically connected to the gear disk 602 through the support spring 603. The top of the rotating column 608 is fixedly connected to the bottom of the switching disk 10.

[0042] Specifically, during the synchronous vertical downward movement of the rack 601, because the end of the locking block 604 is provided with an inclined surface, and the locking block 604 and the gear disk 602 are elastically connected through the support spring 603, the locking block 604 does not engage with the helical gear 605 when the gear disk 602 rotates in the forward direction, and the helical gear 605 is in a non-rotating state.

[0043] exist Figure 1 , Figure 2 and Figures 6-8 In the middle: A tilting mechanism 7 is provided between the pallet 11 and the detection table 1. The tilting mechanism 7 uses the rotational kinetic energy of the switching disk 10 to drive the pallet 11 to tilt, so that the measured carton slides down by its own weight. The tilting mechanism 7 includes a support plate 702 fixed at an equal angle to the bottom of the switching disk 10 and a support shaft 701 connected between the pallet 11 and the switching disk 10. The pallet 11 and the switching disk 10 are rotatably connected through the support shaft 701. The bottom end of the support plate 702 is rotatably connected to a pin 709. A movable plate 703 is fixedly connected between the two pins 709. A torsion spring 708 is sleeved on the outside of the pins 709 and connected between the movable plate 703 and the support plate 702. The torsion spring 708 provides a reset elastic force for the movable plate 703, so that the movable plate 703 returns to its initial position after completing the tilting action.

[0044] Specifically, since the movable plate 703 and the support plate 702 are connected by a torsion spring 708, during the process of separating the movable plate 703 from the inclined top plate 710, the movable plate 703 and the support plate 11 will reset under the action of the torsion spring 708 and their own gravity, and at the same time, the pusher 805 will reset so that the carton to be tested can be placed.

[0045] exist Figure 1 and Figures 6-8In the middle section: a support bar 706 is fixedly connected to the side of the support plate 702, and the support bar 706 is set perpendicular to the support plate 702. A guide groove 704 is opened at the top of the movable plate 703. The guide groove 704 provides a sliding track for the guide rod 707 and transmits the deflection movement of the movable plate 703. A guide groove 705 is opened at the bottom of the support plate 11. The guide groove 705 cooperates with the guide rod 707 to convert the sliding of the guide rod 707 into the tilting movement of the support plate 11. A guide rod 707 that passes through the support bar 706 is slidably connected between the guide groove 704 and the guide groove 705. An inclined top plate 710 is fixedly connected to one side of the top of the detection table 1. The inclined top plate 710 provides inclined support for the movable plate 703, so that the movable plate 703 deflects upward after contact. The inclined top plate 710 is set as an isosceles trapezoidal structure.

[0046] Specifically, during the process of moving the tested carton to the unloading area, the bottom end of the movable plate 703 presses against the inclined plate 710 and deflects upward around the pin 709 along the inclined surface of the inclined plate 710. Since the guide rod 707 is slidably connected to the pallet 11 and the movable plate 703 through the second guide groove 705 and the first guide groove 704 respectively, the pallet 11 deflects upward around the support shaft 701, which facilitates the sliding of the tested carton onto the conveyor belt 12 to achieve automatic unloading.

[0047] exist Figure 1 , Figure 2 and Figures 6-11 In the middle section, a pushing mechanism 8 is provided between the pallet 11 and the switching disk 10. The pushing mechanism 8 is used to actively push the carton to solve the jamming problem caused by the carton sticking to the pallet 11. The pushing mechanism 8 includes arc-shaped toothed plates 801 symmetrically fixed on both sides of the pallet 11 and a toothed disc assembly 802 rotatably connected to the inner side of the switching disk 10. The toothed disc assembly 802 is meshed with the arc-shaped toothed plates 801. The arc-shaped toothed plates 801 rotate synchronously with the movable plate 703 to provide rotational power for the toothed disc assembly 802. A connecting plate 803 is fixedly connected to the side of the toothed disc assembly 802 near the pallet 11. The outer side of the pallet 11 is slidably connected to... A pusher 805 is connected. In its initial state, the pusher 805 can limit the carton, allowing it to be placed in the correct position and ensuring its match with the pressure plate 5. The pusher 805 slides along the pallet 11, directly contacting the carton and pushing it away from the pallet 11, thus solving the jamming problem. A connecting plate 804 is rotatably connected between the pusher 805 and the connecting plate 1 803. The connecting plate 2 804 converts the rotational motion into the linear sliding motion of the pusher 805. A conveyor belt 12 corresponding to the unloading position is provided on the side of the testing table 1. The conveyor belt 12 is used to receive the tested cartons that slide off the pallet 11, realizing the conveying and collection of the cartons.

[0048] Specifically, during the upward deflection of pallet 11 around support shaft 701, arc-shaped toothed plate 801 rotates synchronously. Since toothed disc assembly 802 is meshed with arc-shaped toothed plate 801, connecting plate 1 803 rotates rapidly. Since connecting plate 1 803 is rotatably connected to push frame 805 by connecting plate 2 804, and push frame 805 is slidably connected to pallet 11 through slide groove 807 and slider 806, push frame 805 slides rapidly along pallet 11, thereby pushing the carton away from pallet 11 through push frame 805 to avoid jamming.

[0049] Specifically, by linking the switching, tilting, and pushing actions through the same power source, the convenience and stability of material feeding are directly improved by relying on the continuous action connection. This also makes the equipment structure more compact and significantly improves the degree of automation. At the same time, the entire process of detection, switching, feeding, and anti-jamming is seamlessly connected, which not only greatly improves the overall efficiency of carton pressure detection, but also further ensures the accuracy of detection data, thereby meeting the continuous detection needs of large batches of cartons. The mechanical structure achieves action timing matching through self-synchronization, fundamentally solving the failure problem caused by complex electrical control logic, and greatly reducing the difficulty and cost of later maintenance.

[0050] exist Figure 9 and Figure 10 In the middle: the gear plate assembly 802 consists of a driving gear and a driven gear that mesh together, and the connecting plate 803 is fixedly connected to the driven gear.

[0051] Specifically, when the arc-shaped toothed plate 801 rotates, the driving gear rotates because it meshes with the arc-shaped toothed plate 801. The driven gear rotates synchronously because it meshes with the driving gear and the connecting plate 803 fixed at one end.

[0052] exist Figures 7-10 In the middle: the diameter of the arc-shaped toothed plate 801 is larger than the diameter of the toothed disc assembly 802.

[0053] Specifically, since the diameter of the arc-shaped toothed plate 801 is larger than the diameter of the toothed disc assembly 802, the rotation angle of the toothed disc assembly 802 is greater than the rotation angle of the arc-shaped toothed plate 801, thereby giving the pusher 805 a larger sliding stroke and a more reliable pushing effect.

[0054] exist Figures 7-11 In the middle: both sides of the support plate 11 are provided with sliding grooves 807. The inner side of the push frame 805 is fixed with a slider 806 that slides in cooperation with the sliding groove 807. The slider 806 cooperates with the sliding groove 807 to make the sliding of the push frame 805 more stable.

[0055] Specifically, the cooperation between the slider 806 and the slide groove 807 can achieve the support and limit of the push frame 805, making the sliding of the push frame 805 more stable.

[0056] exist Figure 3 and Figure 5 In the middle section: A limiting mechanism 9 is provided between the testing table 1 and the rotating shaft 606. The limiting mechanism 9 is used to fix the switching disk 10 during the testing process to prevent it from shaking and affecting the accuracy of the pressure data. The limiting mechanism 9 includes a support frame 904 fixedly connected to the bottom of the testing table 1 and a limiting groove 901 opened at equal angles on the surface of the rotating shaft 606. A limiting plate 902 that forms a locking structure with the limiting groove 901 is slidably connected inside the support frame 904. The limiting groove 901 and the limiting plate 902 cooperate to limit the rotating shaft 606 and prevent the rotating shaft 606 from moving synchronously when the gear disk 602 rotates forward. The end of the limiting plate 902 is provided with an inclined surface. A return spring 903 is fixedly connected between the limiting plate 902 and the support frame 904. The return spring 903 provides a return spring force for the limiting plate 902 to reset the limiting plate 902.

[0057] Specifically, when the rack 601 drives the gear disk 602 to rotate in the forward direction, because the end of the locking block 604 is inclined and elastically connected to the gear disk 602, the helical gear 605 and the rotating shaft 606 do not rotate, and the limiting plate 902 will be engaged with the limiting groove 901 under the action of the return spring 903, further keeping the rotating shaft 606 stationary and the switching disk 10 does not rotate, further ensuring the accuracy of the detection data.

[0058] Specifically, when the rack 601 drives the gear disk 602 to rotate in the opposite direction, the helical gear 605 and the rotating shaft 606 rotate synchronously with the gear disk 602 through the locking block 604. Because the end of the limiting plate 902 is inclined and elastically connected to the support frame 904, the limiting plate 902 does not engage with the limiting groove 901.

[0059] exist Figure 6 and Figure 12 In the middle: the bottom end of the switching disk 10 is fixedly connected with support rods 13 distributed at equal angles, and the top end of the detection table 1 is provided with a support groove 14 that forms a sliding structure with the support rods 13. The support rods 13 and the support groove 14 cooperate to make the rotation of the switching disk 10 more stable.

[0060] Specifically, the cooperation between the support rod 13 and the support groove 14 can achieve stable support for the switching disk 10, making the rotation of the switching disk 10 more stable.

[0061] When in use, the hydraulic cylinder 3 is activated, which drives the pressure plate 5 and the rack 601 at the rear end to move vertically downward. At this time, the pressure plate 5, together with the pressure sensor 4, performs pressure strength detection on the carton on the pallet 11. During this process, the rack 601 drives the gear plate 602 to rotate in the forward direction. Because the end of the locking block 604 is inclined and elastically connected to the gear plate 602, the locking block 604 does not engage with the helical gear 605. The helical gear 605 and the rotating shaft 606 remain stationary, and the switching disk 10 does not rotate, ensuring the accuracy of the detection data.

[0062] After a single test is completed, the hydraulic cylinder 3 drives the pressure plate 5 and the rack 601 to move vertically upward and reset. Through the meshing of the rack 601 and the gear plate 602, the rack 601 drives the rack 602 to rotate in the opposite direction. At this time, the locking block 604 engages with the helical gear 605, so that the helical gear 605 and the rotating shaft 606 rotate synchronously. At the same time, the rotating shaft 606 drives the rotating column 608 and the switching disk 10 to rotate intermittently by 45° through the bevel gear set 607, so as to move the tested carton to the lower material position. After the tested carton is moved to the test position, continuous testing is achieved.

[0063] During the process of moving the tested carton to the unloading position, the bottom end of the movable plate 703 presses against the inclined top plate 710 and deflects upward around the pin shaft 709. At the same time, the vertically moving guide rod 707 slides along the guide groove 1 704 and the guide groove 2 705, causing the pallet 11 to deflect upward around the support shaft 701, so that the tested carton slides down to the conveyor belt 12, completing the automatic unloading.

[0064] As the pallet 11 deflects upward around the support shaft 701, the arc-shaped toothed plate 801 rotates synchronously. Through the meshing action of the toothed disc assembly 802 and the arc-shaped toothed plate 801, the toothed disc assembly 802 rotates. At the same time, the toothed disc assembly 802 drives the connecting plate 1 803 to rotate. The connecting plate 1 803 drives the pusher 805 to slide along the pallet 11 through the connecting plate 2 804, pushing the carton away from the pallet 11, thereby avoiding jamming.

[0065] During the separation of the movable plate 703 from the inclined top plate 710, the movable plate 703 and the support plate 11 will be reset under the action of the torsion spring 708 and their own gravity, and at the same time the pusher 805 will be reset so that the carton to be tested can be placed.

[0066] Electrical equipment (including but not limited to motors, electric actuators, etc.) is safely powered by an external power source and controlled by a control box. The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0067] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cardboard box pressure strength testing device, comprising a testing platform (1), a mounting frame (2) fixed to the rear end of the testing platform (1), and a hydraulic cylinder (3) mounted on the top of the mounting frame (2), wherein a pressure sensor (4) is connected to the output end of the hydraulic cylinder (3), and a pressure plate (5) is connected to the bottom of the pressure sensor (4), and the hydraulic cylinder (3) cooperates with the pressure sensor (4) and the pressure plate (5) to complete the strength testing of the cardboard box; characterized in that: The top of the testing platform (1) is movably connected to a switching disk (10), and the periphery of the switching disk (10) is movably connected to trays (11) distributed at equal angles. A switching mechanism (6) is provided between the mounting frame (2) and the testing platform (1), and the switching mechanism (6) is used to realize the rapid switching between the testing position and the unloading position, while ensuring that the switching disk (10) is fixed during testing so as to realize continuous testing. A tilting mechanism (7) is provided between the tray (11) and the testing platform (1), and the tilting mechanism (7) uses the rotational kinetic energy of the switching disk (10) to drive the tray (11) to tilt so that the tested carton can slide down and be unloaded by its own weight. A pushing mechanism (8) is provided between the tray (11) and the switching disk (10), and the pushing mechanism (8) is used to actively push the carton so as to solve the jamming problem caused by the carton sticking to the tray (11). By cooperating with the switching plate (10), pallet (11), switching mechanism (6), tilting mechanism (7), and pushing mechanism (8), the convenience and stability of material feeding can be directly improved by relying on the continuous action connection, and the equipment structure can be made more compact and the degree of automation can be significantly improved, thereby meeting the continuous inspection needs of large batches of cartons.

2. The cardboard box pressure strength testing device according to claim 1, characterized in that: The switching mechanism (6) includes a rack (601) fixed to the rear end of the pressure plate (5) and a rotating column (608) connected to the middle of the inspection table (1) via a bearing. The rotating column (608) is used to drive the switching disk (10) to rotate synchronously and intermittently to realize the switching of work positions. The rear end of the bottom of the inspection table (1) is connected to a rotating shaft (606) via a bearing. A bevel gear set (607) is provided between the rotating shaft (606) and the rotating column (608).

3. The cardboard box pressure strength testing device according to claim 2, characterized in that: The end of the rotating shaft (606) away from the bevel gear set (607) is fixedly connected to a helical gear (605). A gear disk (602) sleeved on the outside of the helical gear (605) is meshed with one side of the rack (601). The gear disk (602) is used to convert the linear power of the rack (601) into rotational power, providing a power basis for subsequent workstation switching. A locking block (604) that engages with the helical gear (605) is slidably connected to one side inside the gear disk (602).

4. The cardboard box pressure strength testing device according to claim 3, characterized in that: The end of the card block (604) is provided with an inclined surface. A support spring (603) is connected between the card block (604) and the gear plate (602). The card block (604) is elastically connected to the gear plate (602) through the support spring (603). The top of the rotating column (608) is fixedly connected to the bottom of the switching disk (10).

5. The cardboard box pressure strength testing device according to claim 1, characterized in that: The tilting mechanism (7) includes a support plate (702) fixed at an equal angle to the bottom of the switching disk (10) and a support shaft (701) connected between the tray (11) and the switching disk (10). The tray (11) and the switching disk (10) are rotatably connected through the support shaft (701). The bottom end of the support plate (702) is rotatably connected to a pin (709). A movable plate (703) is fixedly connected between the two pins (709). A torsion spring (708) sleeved on the outside of the pin (709) is connected between the movable plate (703) and the support plate (702). The torsion spring (708) provides a reset spring force for the movable plate (703), so that the movable plate (703) returns to its initial position after completing the tilting action.

6. The cardboard box pressure strength testing device according to claim 5, characterized in that: The support plate (702) is fixedly connected to the side of the support strip (706), and the support strip (706) is perpendicular to the support plate (702). The top of the movable plate (703) is provided with a guide groove 1 (704), and the bottom of the support plate (11) is provided with a guide groove 2 (705). The guide groove 1 (704) and the guide groove 2 (705) are slidably connected with a guide rod (707) that passes through the support strip (706). The guide groove 2 (705) and the guide rod (707) cooperate to convert the sliding of the guide rod (707) into the tilting movement of the support plate (11). The top of the detection table (1) is fixedly connected to one side of the top with an inclined plate (710), and the inclined plate (710) provides inclined support for the movable plate (703), so that the movable plate (703) deflects upward after contact. The inclined plate (710) is set as an isosceles trapezoidal structure.

7. The cardboard box pressure strength testing device according to claim 6, characterized in that: The pushing mechanism (8) includes arc-shaped toothed plates (801) symmetrically fixed on both sides of the tray (11) and a toothed disc assembly (802) rotatably connected to the inner side of the switching disk (10). The toothed disc assembly (802) meshes with the arc-shaped toothed plates (801), and the arc-shaped toothed plates (801) rotate synchronously with the movable plate (703) to provide rotational power for the toothed disc assembly (802). A connecting plate (803) is fixedly connected to the side of the toothed disc assembly (802) near the tray (11), and a connecting plate (803) is slidably connected to the outer side of the tray (11). Pusher (805) slides along pallet (11) and pushes it away from pallet (11) to solve the jamming problem. The pusher (805) is rotatably connected to connecting plate one (803) by connecting plate two (804), and connecting plate two (804) converts the rotational motion into the linear sliding motion of pusher (805). The side of the detection table (1) is provided with a conveyor belt (12) corresponding to the unloading position, and the conveyor belt (12) is used to receive the tested carton that slides down from pallet (11) to realize the conveying and collection of carton.

8. The cardboard box pressure strength testing device according to claim 7, characterized in that: The gear assembly (802) consists of a driving gear and a driven gear that mesh together. The connecting plate (803) is fixedly connected to the driven gear. The diameter of the arc-shaped gear plate (801) is larger than the diameter of the gear assembly (802). The support plate (11) has sliding grooves (807) on both sides. The inner side of the push frame (805) is fixed with a slider (806) that slides with the sliding groove (807). The slider (806) and the sliding groove (807) cooperate to make the sliding of the push frame (805) more stable.

9. A cardboard box pressure strength testing device according to claim 2, characterized in that: A limiting mechanism (9) is provided between the testing platform (1) and the rotating shaft (606), and the limiting mechanism (9) is used to fix the switching disk (10) during the testing process to prevent it from shaking and affecting the accuracy of the pressure data. The limiting mechanism (9) includes a support frame (904) fixedly connected to the bottom of the testing platform (1) and a limiting groove (901) opened at equal angles on the surface of the rotating shaft (606). The inside of the support frame (904) is slidably connected to the limiting groove (901). A limiting plate (902) forms a locking structure, and a limiting groove (901) cooperates with the limiting plate (902) to limit the rotating shaft (606) and prevent the rotating shaft (606) from moving synchronously when the gear disk (602) rotates forward. The end of the limiting plate (902) is provided with an inclined surface. A return spring (903) is fixedly connected between the limiting plate (902) and the support frame (904), and the return spring (903) provides a return spring force for the limiting plate (902).

10. A cardboard box pressure strength testing device according to claim 1, characterized in that: The bottom end of the switching disk (10) is fixedly connected with support rods (13) distributed at equal angles. The top end of the detection table (1) is provided with a support groove (14) that forms a sliding structure with the support rods (13). The support rods (13) and the support groove (14) cooperate to make the rotation of the switching disk (10) more stable.

Images