Device for detecting compressive strength of stone plastic box

Abstract

The invention discloses a stone-plastic box compressive strength detection device, and relates to the technical field of stone-plastic box detection.The stone-plastic box compressive strength detection device comprises a supporting seat, a supporting block and a switching assembly are installed on the supporting seat, a first ball shaft is connected to the supporting block, a supporting plate is rotationally arranged on the outer side of the first ball shaft, and a first connecting shell is installed on the supporting plate; a second connecting shell is installed in the first connecting shell, a top plate is installed on the switching assembly, a servo motor is installed on the top of the top plate, a ball screw is connected to an output shaft of the servo motor, a ball nut is in threaded connection with the outer side of the ball screw, a fixing frame is installed on the top plate, and the top plate is rotationally connected with the fixing frame. The problem that an existing compression resistance detection device cannot simulate different supporting face structures to conduct compression resistance detection on the stone-plastic box is solved, the device can be switched between the two detection modes of inclination detection and horizontal detection, and the supporting face at the bottom of the stone-plastic box can be adjusted.

Description

Technical Field

[0001] This invention relates to the field of stone-plastic box testing technology, specifically a device for testing the compressive strength of stone-plastic boxes. Background Technology

[0002] Stone-plastic composite (SPC) is a new type of environmentally friendly composite material. By filling a high proportion of inorganic minerals such as calcium carbonate, it significantly reduces the amount of plastic used, thereby lowering carbon emissions and energy consumption during the production process. Furthermore, SPC is pure in composition and contains no harmful substances. Compared to traditional plastics, SPC has a lower environmental impact. This new material is mainly used in packaging boxes, which are widely used in construction, decoration, and furniture. Because SPC boxes are used to support large objects or in complex environments, their compressive strength needs to be tested to assess their safety and durability during use. However, existing compressive strength testing devices still have some shortcomings.

[0003] The invention patent with publication number CN112834351B discloses an auxiliary device for testing the compressive strength of aluminum honeycomb panels. The device includes an auxiliary platform with its bottom slidably connected to a sliding base. A fixed frame is symmetrically positioned on the top of the auxiliary platform, and a horizontal plate is connected to the outer sidewall of the fixed frame. A first slide rail is provided on the horizontal plate, and a rotating ring slides on the first slide rail. A rotating shaft passes through and rotatably connects to the center of the rotating ring. The rotating shaft passes through and rotates to the fixed frame and connects to a fixed device. This device enables rapid adjustment of the front-back, left-right, and right-side positions of the aluminum honeycomb panel, as well as rapid adjustment of the rotation angle of the aluminum honeycomb panel, thus improving the efficiency of testing the compressive strength of aluminum honeycomb panels. However, while the above device can quickly adjust the angle of the object being tested, it lacks adaptability. During use, the support surface of the testing structure cannot be adjusted, it cannot simulate different support surface structures for compressive strength testing of the stone-plastic box, and it cannot switch the support structure at the bottom of the stone-plastic box. Furthermore, existing testing devices cannot automatically compress the stone-plastic box from multiple directions during testing.

[0004] Patent CN106644706A discloses a carton compression strength testing machine, including a base plate with a PLC controller mounted on it. A strength detection device is screwed onto the center of the upper surface of the base plate, enabling high-precision strength testing of the carton. Two conveying devices are symmetrically mounted on both sides of the upper surface of the base plate, automatically transporting the carton to be tested. Two connecting chains are installed between the strength detection device and each of the two conveying devices, ensuring that the carton transported by the conveying devices smoothly enters the strength detection device for testing. This method achieves uniform and high-precision testing of the carton, avoiding the random errors inherent in single-point strength testing, and offers advantages such as ease of operation, high testing accuracy, and high work efficiency. However, while the above device can achieve conveying and uniform testing, it cannot simulate the pressure exerted on the corners of a carton when it is tilted in an uneven stack of goods, thus lacking a tilt compression strength testing function. Summary of the Invention

[0005] The purpose of this invention is to provide a device for testing the compressive strength of stone-plastic boxes, in order to solve the problem that existing compressive strength testing devices cannot simulate different support surface structures for compressive strength testing of stone-plastic boxes.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a stone-plastic box compressive strength testing device, comprising a support base, a support block and a switching assembly mounted on the support base, a first ball shaft connected to the support block, a support plate rotatably mounted on the outer side of the first ball shaft, a first connecting shell mounted on the support plate, a second connecting shell mounted inside the first connecting shell, a top plate mounted on the switching assembly, a servo motor mounted on the top of the top plate, a ball screw connected to the output shaft of the servo motor, a ball nut threadedly connected to the outer side of the ball screw, a fixing frame mounted on the top plate, the top plate and the fixing frame being rotatably connected, a connecting frame connected to the ball nut, a pressure plate mounted below the connecting frame, the pressure plate and the top plate being slidably connected, a support assembly, a traction assembly and a lifting assembly mounted on the first connecting shell, a second rotating plate rotatably connected to the first connecting shell, a clamping assembly and a clamping plate mounted on the second rotating plate, a pressure sensor mounted below the pressure plate, and a mounting plate disposed below the pressure sensor.

[0007] As a further embodiment of the present invention: a driving component is installed on the support block, and an adjustment component is installed on the support plate. The driving component includes an outer bushing rotatably mounted on the support block. A connecting handle and a first motor are respectively installed on both sides of the outer bushing. A first rubber wheel is fixedly connected to the output shaft of the first motor.

[0008] As a further embodiment of the present invention: the switching component includes a docking groove formed on the support base, a locking rod fitted in the docking groove, a first connecting plate provided on the outside of the support base, a first electric push rod and a second electric push rod installed on the first connecting plate, the first electric push rod being connected to the locking rod, a second connecting plate being connected above the second electric push rod, a side rod being installed on the second connecting plate, and the side rod being connected to the top plate.

[0009] As a further embodiment of the present invention: a guide rod is fixedly provided on the first connecting plate, and the guide rod passes through the interior of the second connecting plate.

[0010] As a further embodiment of the present invention: the adjustment component includes a mounting groove formed on the support plate, a mounting block installed in the mounting groove, a gap provided between the mounting groove and the mounting block, a bushing fixedly connected to the bottom of the mounting block, a second ball shaft rotatably installed in the bushing, a stud fixedly connected to the bottom of the second ball shaft, the stud being threadedly connected to the support base, a second rubber wheel rotatably installed on the support base, a connecting block slidably installed in the second rubber wheel, and the top of the connecting block being connected to the stud.

[0011] As a further embodiment of the present invention: the support assembly includes a third motor fixedly connected to a first connecting shell, a first synchronous pulley fixedly connected to the output shaft of the third motor, a first synchronous belt installed on the outer side of the first synchronous pulley, a second synchronous pulley installed above the first synchronous belt, a bidirectional screw fixedly installed on the second synchronous pulley, sliders threadedly connected to both sides of the bidirectional screw, the sliders slidably installed inside the second connecting shell, a first convex plate fixedly connected to the slider, second convex plates fitted to both sides of the first convex plate, a support shell installed above the second convex plates, and a first rotating plate rotatably connected inside the support shell.

[0012] As a further embodiment of the present invention: the two adjacent first rotating plates are rotatably connected, and the support shell located in the middle of the second connecting shell is fixedly connected to the second connecting shell.

[0013] As a further embodiment of the present invention: the traction assembly includes a fourth motor mounted on the first connecting shell, a third synchronous pulley and a winding pulley fixedly connected to the output shaft of the fourth motor, a second synchronous belt mounted on the third synchronous pulley, traction steel ropes wound on both sides of the winding pulley, and guide wheels provided on the outer side of the traction steel ropes.

[0014] As a further embodiment of the present invention: the lifting assembly includes an outer frame slidably mounted on the first connecting shell, a baffle fixedly connected to the outer frame, a second screw rotatably mounted on the first connecting shell, a fourth synchronous pulley provided on the right side of the second synchronous belt, and a damping block provided between the fourth synchronous pulley and the second screw.

[0015] As a further embodiment of the present invention: the clamping assembly includes a first spring fixedly connected to the second rotating plate, a first movable plate fixedly mounted on the first spring, a second spring fixedly mounted on the first movable plate, a second movable plate fixedly mounted on the second spring, slide rods mounted on both sides of the second movable plate, the slide rods passing through the interior of the second movable plate and the second rotating plate, the slide rods being connected to the clamping plate, the guide wheel being mounted on the second movable plate, and the first movable plate and the slide rods being fixedly connected.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. The device is equipped with a support assembly. A third motor drives the first synchronous pulley to rotate. The first synchronous pulley drives the second synchronous pulley and the bidirectional screw to rotate via a synchronous belt. When the bidirectional screw rotates, it causes the remaining support shells (except for the one in the middle) to move closer to the center of the device or expand outward, thereby adjusting the support surface distribution density at the bottom of the stone-plastic box. This allows for switching of the support surface structure and simulating different usage environments for pressure resistance testing, solving the problem that existing pressure testing devices cannot simulate different support surface structures for pressure testing of stone-plastic boxes. During adjustment, the device expands and contracts by pushing the second convex plates located on both sides of the first convex plate against it. The support shells do not directly contact the sliders, ensuring that the bidirectional screw is not subjected to vertical pressure during use, thus enhancing the durability of the device.

[0017] 2. The traction and clamping components enable the fixation of the stone-plastic box. When the fourth motor drives the third synchronous pulley and the winding pulley to rotate, the traction steel ropes on both sides of the winding pulley are wound around the winding pulley. The traction steel ropes will press down on the second movable plate through the guide wheel. The second movable plate pushes the first movable plate and the slide rod through the second spring, and then pushes the clamping plate through the slide rod to achieve the clamping function. The stone-plastic box can be clamped from multiple directions through the traction structure. Furthermore, the first and second springs enable the device to adapt to stone-plastic boxes with different length-to-width ratios for centered fixation, thereby accurately detecting the compressive strength of the stone-plastic box. The device is equipped with a lifting assembly. When the winding wheel rotates, it can also drive the fourth synchronous wheel to rotate through the third synchronous wheel and the second synchronous belt. The fourth synchronous wheel will drive the second screw to rotate, and the second screw will drive the outer frame and baffle to rise and fall. When the baffle moves upward, it will automatically push the second rotating plate upward to a vertical position, so that the device can automatically unfold the clamping structure for use. When the winding wheel releases the wire, the second screw rotates in the opposite direction, the baffle moves down and no longer blocks the second rotating plate and clamping plate. At this time, the second rotating plate above the device can be folded to facilitate the loading and unloading of the stone-plastic box.

[0018] 3. The device is equipped with a drive assembly, a switching assembly, and an adjustment assembly, enabling switching between tilt detection and horizontal detection. When the stone-plastic box needs to be tilted to one side for detection, the second connecting plate is shortened so that it no longer abuts against the side of the support plate. At this time, the drive assembly can drive the second rotating wheel and the connecting block to rotate. When the connecting block rotates, it will drive the stud to rotate. As the stud screws into or out of the support seat, it can drive the second ball shaft to push the bushing upward. The bushing will then push the support plate through the mounting block, causing the support plate to tilt and rotate on the first ball shaft. The bushings at the other two locations will rotate and move on the second ball shaft at the corresponding positions. The gap between the mounting block and the mounting groove allows the bushing to accommodate a certain amount of displacement while ensuring the support effect. At this time, the stone-plastic box is tilted as a whole, while the pressure plate used for pressure resistance detection remains vertical, thus simulating the pressure on the corners of the box when it is tilted due to unevenness in the stack of goods. This device can reset the second connecting plate, so that the inner wall of the second connecting plate abuts against the outer wall of the support plate again. This not only allows the stone-plastic box to switch from tilt detection to vertical detection, but also allows the levelness of the support plate to be calibrated. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection structure between the ball screw and the ball nut of the present invention; Figure 3 This is a schematic diagram of the connection structure between the second electric push rod and the second connecting plate of the present invention; Figure 4 This is a schematic diagram of the internal structure of the support plate of the present invention; Figure 5 This is a schematic diagram of the connection structure between the first rotating plate and the supporting shell of the present invention; Figure 6 This is a schematic diagram of the internal structure of the support shell of the present invention; Figure 7 This is a schematic diagram of the bottom structure of the support shell of the present invention; Figure 8 This is a schematic diagram of the connection structure between the outer frame and the baffle of the present invention; Figure 9 for Figure 8 Enlarged schematic diagram of the structure at point A; Figure 10 for Figure 8 Enlarged schematic diagram of the structure at point B; Figure 11 A schematic diagram showing the distribution of the adjustment components on the support base; Figure 12 This is a schematic diagram of the connection structure between the mounting plate and the pressure sensor of the present invention.

[0020] Reference numerals: 1. Support base; 2. Support block; 3. First ball shaft; 4. Support plate; 5. Drive assembly; 501. Outer bushing; 502. Connecting handle; 503. First motor; 504. First rubber roller; 6. Switching assembly; 601. Docking groove; 602. Locking rod; 603. First connecting plate; 604. First electric push rod; 605. Second electric push rod; 606. Second connecting plate; 607. Side rod; 608. Guide rod 7. Adjustment component; 701. Mounting slot; 702. Mounting block; 703. Bushing; 704. Second ball shaft; 705. Stud; 706. Connecting block; 707. Second rubber roller; 8. First connecting shell; 9. Second connecting shell; 10. Top plate; 11. Servo motor; 12. Ball screw; 13. Fixing bracket; 14. Ball nut; 15. Connecting bracket; 16. Pressure plate; 17. Support component; 1701. Third motor; 1702, First synchronous pulley; 1703, First synchronous belt; 1704, Double-acting screw; 1705, Slider; 1706, First convex plate; 1707, Second convex plate; 1708, Support shell; 1709, First rotating plate; 1710, Second synchronous pulley; 18, Traction assembly; 1801, Fourth motor; 1802, Third synchronous pulley; 1803, Winding reel; 1804, Second synchronous belt; 1805, Traction steel rope; 1 806. Guide wheel; 19. Lifting assembly; 1901. Fourth synchronous wheel; 1902. Second screw; 1903. Damping block; 1904. Outer frame; 1905. Baffle; 20. Clamping assembly; 2001. First spring; 2002. First movable plate; 2003. Second spring; 2004. Second movable plate; 2005. Slide rod; 21. Second rotating plate; 22. Clamping plate; 23. Pressure sensor; 24. Mounting plate. Detailed Implementation

[0021] 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.

[0022] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this invention, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," and "set up" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The following describes embodiments of the invention based on its overall structure.

[0023] Example 1: like Figures 1-12As shown, this embodiment proposes a device for testing the compressive strength of a stone-plastic box, including a support base 1, a support block 2 and a switching assembly 6 mounted on the support base 1, a first ball shaft 3 connected to the support block 2, a support plate 4 rotatably mounted on the outer side of the first ball shaft 3, a first connecting shell 8 mounted on the support plate 4, a second connecting shell 9 installed inside the first connecting shell 8, a top plate 10 mounted on the switching assembly 6, a servo motor 11 mounted on the top of the top plate 10, a ball screw 12 connected to the output shaft of the servo motor 11, a ball nut 14 threadedly connected to the outer side of the ball screw 12, a fixing frame 13 mounted on the top plate 10, the top plate 10 and the fixing frame 13 being rotatably connected, a connecting frame 15 connected to the ball nut 14, a pressure plate 16 mounted below the connecting frame 15, the pressure plate 16 and the top plate 10 being slidably connected, the ball screw 12 is driven to rotate by the servo motor 11, the ball screw 12... The pressure plate 16 and the connecting frame 15 move vertically up and down. The first connecting shell 8 is equipped with a support assembly 17, a traction assembly 18, and a lifting assembly 19. The first connecting shell 8 is rotatably connected to a second rotating plate 21. The second rotating plate 21 is equipped with a clamping assembly 20 and a clamping plate 22. A pressure sensor 23 is installed below the pressure plate 16. A mounting plate 24 is set below the pressure sensor 23. The mounting plate 24 enables the device to uniformly transmit downward pressure to ensure the detection accuracy of the pressure sensor 23. Thus, the pressure plate 16 continuously applies pressure to the pressure sensor 23 and the mounting plate 24, and the mounting plate 24 performs compressive strength testing on the stone-plastic box. The support assembly 17 can change the distribution density of the bottom support surface of the stone-plastic box to simulate different placement environments for compressive performance testing. The traction assembly 18 and the lifting assembly 19 are used to automatically press the stone-plastic box around its perimeter while the second rotating plate 21 is subsequently unfolded.

[0024] Example 2: The solution in Example 1 will be further described below with reference to its specific working method. like Figure 4 and Figure 11As shown, in a preferred embodiment, based on the above method, a drive assembly 5 is further installed on the support block 2, and an adjustment assembly 7 is installed on the support plate 4. The drive assembly 5 includes an outer bushing 501 rotatably mounted on the support block 2. A connecting handle 502 and a first motor 503 are respectively installed on both sides of the outer bushing 501. A first rubber wheel 504 is fixedly connected to the output shaft of the first motor 503. By pulling the connecting handle 502, the outer bushing 501 is rotated, thereby adjusting the position of the first motor 503, so that the first rubber wheel 504 can be adjusted first during use. The section rotates again to adjust the tilt of the stone-plastic box. The drive component 5 acts on the adjustment component 7, which changes the installation angle of the support plate 4 on the first ball shaft 3, allowing the device to switch between tilt detection and vertical detection. During tilt detection, the switching component 6 is adjusted so that it no longer abuts against the outer edge of the support plate 4. At this time, the support plate 4 can change its tilt angle. Since the top plate 10 remains horizontal, the pressure during detection is still vertical pressure, thus simulating the pressure resistance test of the corners of the stone-plastic box when it is tilted due to unevenness in the stack.

[0025] like Figure 1 , Figure 3 and Figure 4 As shown, in a preferred embodiment, based on the above method, the switching component 6 further includes a docking groove 601 formed on the support base 1, a locking rod 602 fitted inside the docking groove 601, a first connecting plate 603 on the outer side of the support base 1, a first electric push rod 604 and a second electric push rod 605 mounted on the first connecting plate 603, the first electric push rod 604 being connected to the locking rod 602, a second connecting plate 606 connected above the second electric push rod 605, a side rod 607 mounted on the second connecting plate 606, and the side rod 607 being connected to the top plate 10. By extending or shortening the first electric push rod 604, the docking state of the locking rod 602 and the docking groove 601 is adjusted, thereby positioning the first connecting plate 603. By raising or lowering the second electric push rod 605, the docking state of the second connecting plate 606 and the support plate 4 is changed. When the device is in Figure 1 When the stone-plastic box is in the middle state, the vertical compressive strength test can be performed. Subsequently, the second connecting plate 606 can be moved downward so that the second connecting plate 606 no longer abuts against the outer surface of the support plate 4, thereby allowing the support plate 4 to adjust its tilt angle and perform compressive strength test on the corners of the stone-plastic box.

[0026] like Figure 1 and Figure 3As shown, in a preferred embodiment, based on the above method, a guide rod 608 is further fixedly provided on the first connecting plate 603. The guide rod 608 passes through the interior of the second connecting plate 606. The guide rod 608 is used to guide the second connecting plate 606, which can not only ensure that the second connecting plate 606 moves vertically up and down, but also ensure that the pressure is always vertically downward during the pressure test.

[0027] like Figure 4 and Figure 11 As shown, in a preferred embodiment, based on the above method, the adjusting component 7 further includes a mounting groove 701 formed on the support plate 4, a mounting block 702 installed in the mounting groove 701, a gap between the mounting groove 701 and the mounting block 702, a bushing 703 fixedly connected to the bottom of the mounting block 702, a second ball bearing 704 rotatably installed in the bushing 703, a stud 705 fixedly connected to the bottom of the second ball bearing 704, the stud 705 being threadedly connected to the support base 1, a second rubber roller 707 rotatably installed on the support base 1, a connecting block 706 slidably installed in the second rubber roller 707, and the top of the connecting block 706 being connected to the stud 705. Figure 4 As can be seen, when the second rubber roller 707 rotates, it will drive the connecting block 706 to rotate. The rotation of the connecting block 706 will drive the stud 705 to screw in or out of the support base 1, and cause the connecting block 706 to rise and fall within the second rubber roller 707. This will then push the bushing 703 through the second ball shaft 704, and finally push the support plate 4 through the mounting block 702, causing the support plate 4 to tilt in one direction. The bushing 703 rotates on the second ball shaft 704. When the support plate 4 is tilted, since there is a gap between the mounting groove 701 and the mounting block 702, the positions of the mounting blocks 702 in the other two positions will change within the mounting groove 701. At this time, by rotating the second rubber roller 707 in the other two positions, the mounting blocks 702 in the other two positions can be moved downward, thereby pulling down the other two sides of the support plate 4, so that the tilt angle of the support plate 4 is adjusted and fixed. At this time, the compressive strength of the tilted stone-plastic box can be tested.

[0028] like Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, in a preferred embodiment, based on the above method, the support assembly 17 further includes a third motor 1701 fixedly connected to the first connecting shell 8. A first synchronous pulley 1702 is fixedly connected to the output shaft of the third motor 1701. A first synchronous belt 1703 is installed on the outer side of the first synchronous pulley 1702. A second synchronous pulley 1710 is installed above the first synchronous belt 1703. A bidirectional screw 1704 is fixedly provided on the second synchronous pulley 1710. Slider 1705s are threadedly connected to both sides of the bidirectional screw 1704. The slider 1705s are slidably installed inside the second connecting shell 9. A first convex plate 1706 is fixedly connected to the slider 1705. A second protruding plate 1707 is fitted to both sides of plate 1706. A support shell 1708 is installed above the second protruding plate 1707. A first rotating plate 1709 is rotatably connected inside the support shell 1708. A third motor 1701 drives a first synchronous pulley 1702 to rotate. The first synchronous pulley 1702 drives a second synchronous pulley 1710 and a double-acting screw 1704 to rotate via a first synchronous belt 1703. The double-acting screw 1704 drives a slider 1705 to slide inside the second connecting shell 9. Adjacent sliders 1705 can move towards each other or away from each other. The first protruding plate 1706 abuts against the second protruding plate 1707. The support shells 1708 on both sides of the second connecting shell 9 can move towards each other or away from each other. Figure 6 As shown, the central support shell 1708 remains fixed, while the support shells 1708 on both sides of the device are far apart. Under the action of multiple rotating first plates 1709 connected end-to-end, the support shells 1708 maintain an equidistant distance, thereby adjusting the distribution density of the bottom support surface of the stone-plastic box to simulate different placement environments for testing. Furthermore, during adjustment, the support shells 1708 move because the first convex plate 1706 drives the sides of the second convex plate 1707 to abut against each other. Figure 7 As can be seen, the top of the first convex plate 1706 does not contact the bottom surface of the support shell 1708, and the bottom surface of the second convex plate 1707 does not contact the top surface of the slider 1705. Therefore, when adjusting the support surface, the slider 1705 and the bidirectional screw 1704 can be prevented from being subjected to longitudinal pressure.

[0029] like Figure 5 As shown, in a preferred embodiment, based on the above method, the two adjacent first rotating plates 1709 are rotatably connected, and the support shell 1708 located in the middle of the second connecting shell 9 is fixedly connected to the second connecting shell 9. When the first rotating plates 1709 on both sides of the device rotate, the other first rotating plates 1709 rotate synchronously, thereby adjusting the spacing of each support shell 1708 synchronously and equidistantly from the middle of the device to both sides, simulating different support surfaces for detection.

[0030] like Figure 8 and Figure 9As shown, in a preferred embodiment, based on the above method, the traction assembly 18 further includes a fourth motor 1801 mounted on the first connecting shell 8. A third synchronous pulley 1802 and a winding pulley 1803 are fixedly connected to the output shaft of the fourth motor 1801. A second synchronous belt 1804 is mounted on the third synchronous pulley 1802. Traction steel ropes 1805 are wound around both sides of the winding pulley 1803. A guide wheel 1806 is provided on the outer side of the traction steel rope 1805. The fourth motor 1801 drives the winding pulley 1803 and the third synchronous pulley 1802 to rotate, thereby causing the traction steel rope 1805 to be wound around the winding pulley 1803. The traction steel rope 1805, together with the guide wheel 1806, can compress the perimeter of the stone-plastic box so that the perimeter of the stone-plastic box can be clamped in the future.

[0031] like Figures 8-10 As shown, in a preferred embodiment, based on the above method, the lifting assembly 19 further includes an outer frame 1904 slidably mounted on the first connecting shell 8, a baffle 1905 fixedly connected to the outer frame 1904, a second screw 1902 rotatably mounted on the first connecting shell 8, a fourth synchronous pulley 1901 provided on the right side of the second synchronous belt 1804, and a damping block 1903 provided between the fourth synchronous pulley 1901 and the second screw 1902. When the second synchronous belt 1804 rotates, it will drive the fourth synchronous pulley 1901 to rotate, and the damping block 1903 will drive the second screw 1902 to rotate, thereby causing the outer frame 1904 and the baffle 1905 to rise and fall. When the outer frame 1904 moves to the limit position, the second screw 1902 can no longer rotate, and the fourth synchronous pulley 1901 slides outside the second screw 1902, ensuring the clamping effect of the device on the stone-plastic box, and also facilitating the removal of the stone-plastic box after the inspection is completed.

[0032] like Figures 8-10 As shown, in a preferred embodiment, based on the above method, the clamping assembly 20 further includes a first spring 2001 fixedly connected to the second rotating plate 21, a first movable plate 2002 fixedly mounted on the first spring 2001, a second spring 2003 fixedly mounted on the first movable plate 2002, a second movable plate 2004 fixedly mounted on the second spring 2003, and slide rods 2005 provided on both sides of the second movable plate 2004. The slide rods 2005 pass through the interior of the second movable plate 2004 and the second rotating plate 21, and are connected to the clamping plate 22. A guide wheel 1806 is mounted on the second movable plate 2004. The first movable plate 2002 and the slide rods 2005 are fixedly connected. Figure 9As shown, when the guide wheel 1806 is pressed, the second movable plate 2004 presses down the first movable plate 2002 and the first spring 2001 through the second spring 2003, and then pushes the clamping plate 22 to move through the slide rod 2005 on the first movable plate 2002. The device pushes the clamping plate 22 from four positions at the same time to achieve the function of pressing the stone-plastic box around. Subsequently, the slide rod 2005 and the clamping plate 22 can be reset by the first spring 2001.

[0033] Example 3: The solutions in Embodiments 1 and 2 will be further described below with reference to their specific working methods. Specifically, when using this stone-plastic box compressive strength testing device: (e.g.) Figures 1-7 , Figure 11 and Figure 12 As shown, the device can switch between tilt detection and vertical detection. In the vertical state, as... Figure 1 and Figure 3 As shown, by adjusting the first electric push rod 604, the clamping rod 602 is aligned with the docking groove 601. Then, the second electric push rod 605 is adjusted to regulate the height of the second connecting plate 606, ensuring that the inner wall of the second connecting plate 606 abuts against the outer surface of the support plate 4. This ensures that the support plate 4 and the top plate 10 above the side rod 607 remain horizontal, thereby keeping the stone-plastic box and the pressure plate 16 used for pressure testing horizontally. The servo motor 11 drives the ball screw 12 to rotate, which in turn moves the ball nut 14. The ball nut 14 then moves the pressure plate 16 and the connecting frame 15 vertically up and down. The pressure plate 16 below the connecting frame 15 continuously applies pressure to the top surface of the stone-plastic box, thus performing the pressure strength test. Figure 1 , Figure 2 and Figure 12 As shown, the mounting plate 24 can evenly distribute the downward pressure of the pressure plate 16 to ensure the detection accuracy of the pressure sensor 23. During tilt detection, the second electric push rod 605 is shortened so that the second connecting plate 606 no longer abuts against the outer edge of the support plate 4. At this time, the driving component 5 can act on the adjusting component 7, and the installation angle of the support plate 4 on the first ball shaft 3 can be changed by the adjusting component 7. First, pull the connecting handle 502 to make the outer bushing 501 rotate on the support block 2, adjust the position of the first motor 503 so that the first rubber roller 504 can act on different second rubber rollers 707, such as Figure 4As shown, when the first rubber roller 504 drives the corresponding second rubber roller 707 to rotate, the connecting block 706 rotates, and the connecting block 706 drives the stud 705 to screw in or out of the support seat 1. The connecting block 706 rises and falls within the second rubber roller 707. When the second ball shaft 704 moves upward, it pushes the bushing 703. The bushing 703 pushes the support plate 4 through the mounting block 702, causing the support plate 4 to tilt in one direction. The bushing 703 rotates on the second ball shaft 704. Because there is a gap between the mounting groove 701 and the mounting block 702, when the support plate 4 tilts, such as Figure 11 As shown, after the adjustment component 7 at one position is adjusted and bent, the positions of the mounting blocks 702 at the other two positions within the mounting groove 701 will change. At this time, by rotating the second rubber rollers 707 at the other two positions, the mounting blocks 702 at the other two positions will be moved downwards until they abut against the interior of the mounting groove 701, thereby pulling down the other two sides of the support plate 4, so that the tilt angle of the support plate 4 can be kept fixed after adjustment. At this time, the compressive strength of the tilted stone-plastic box can be tested. Subsequently, the adjustment component 7 can be reset by reversing the above steps, and the second connecting plate 606 can be moved upwards by extending the second electric push rod 605. The guide rod 608 is used to guide the second connecting plate 606, thereby readjusting the entire device to the desired position. Figure 1 In this state, the device can not only switch between tilt detection and vertical detection, but also calibrate the levelness of the support plate 4 based on whether the second connecting plate 606 can be attached to the support plate 4 again.

[0034] like Figure 1 and Figures 5-7 As shown, the support assembly 17 can change the distribution density of the bottom support surface of the stone-plastic box, thereby simulating different placement environments for pressure resistance testing. The first synchronous wheel 1702 is driven to rotate by the third motor 1701. The first synchronous wheel 1702 drives the second synchronous wheel 1710 and the bidirectional screw 1704 to rotate within the first connecting shell 8 and the second connecting shell 9 via the first synchronous belt 1703. Since the threads on both sides of the bidirectional screw 1704 rotate in opposite directions, the bidirectional screw 1704 can drive the sliders 1705 on both sides to move towards each other or away from each other within the second connecting shell 9. The first convex plate 1706 abuts against the second convex plate 1707, and the support shells 1708 on both sides of the second connecting shell 9 move towards each other or away from each other. Figure 6 As shown, since the supporting shell 1708 in the middle position remains fixed to the second connecting shell 9, when the supporting shells 1708 on both sides of the second connecting shell 9 move away from each other, the multiple first rotating plates 1709 connected end to end can expand or contract while maintaining equidistant distances between the supporting shells 1708, thereby adjusting the distribution density of the bottom support surface of the stone-plastic box to simulate different placement environments for compressive strength testing. Figure 7As shown, when adjusting the support surface, the device moves the support shell 1708 by having the sides of the second convex plate 1707 abut against each other through the first convex plate 1706. Figure 7 As can be seen, the top of the first convex plate 1706 does not contact the bottom surface of the support shell 1708, and the bottom surface of the second convex plate 1707 does not contact the top surface of the slider 1705. Therefore, when adjusting the support surface, the slider 1705 and the bidirectional screw 1704 can be prevented from being subjected to pressure in the vertical direction, thus avoiding affecting the durability of the bidirectional screw 1704 during the pressure resistance test.

[0035] like Figure 1 and Figures 8-10 As shown, the traction assembly 18 and lifting assembly 19 are used to unfold the second rotating plate 21 in its stored state, while automatically pressing the stone-plastic box around its perimeter. The fourth motor 1801 drives the winding wheel 1803 and the third synchronous wheel 1802 to rotate, causing the traction steel rope 1805 to wind around the winding wheel 1803. The traction steel rope 1805, in conjunction with the guide wheel 1806, can press the second movable plate 2004. The second movable plate 2004 presses down on the first movable plate 2002 and the first spring 2001 via the second spring 2003. The sliding rod 2005 slides within the second rotating plate 21, thereby pushing the clamping plates 22 around the device to move, pressing the stone-plastic box around its perimeter. When the third synchronous pulley 1802 rotates, it also drives the fourth synchronous pulley 1901 to rotate via the second synchronous belt 1804. The damping block 1903 drives the second screw 1902 to rotate, thereby causing the outer frame 1904 and the baffle 1905 to rise and fall. When the baffle 1905 blocks the second rotating plate 21, the second rotating plate 21 remains vertical. When the baffle 1905 moves below the second rotating plate 21, the second rotating plate 21 can rotate and retract. Furthermore, when the outer frame 1904 can no longer move upwards, the second screw 1902 cannot rotate further, and the fourth synchronous pulley 1901 slides outside the second screw 1902 to ensure the clamping effect of the device on the stone-plastic box.

[0036] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A device for testing the compressive strength of a stone-plastic box, comprising a support base (1), characterized in that, The support base (1) is equipped with a support block (2) and a switching assembly (6). A first ball shaft (3) is connected to the support block (2). A support plate (4) is rotatably mounted on the outer side of the first ball shaft (3). A first connecting shell (8) is mounted on the support plate (4). A second connecting shell (9) is installed inside the first connecting shell (8). A top plate (10) is mounted on the switching assembly (6). A servo motor (11) is mounted on the top of the top plate (10). A ball screw (12) is connected to the output shaft of the servo motor (11). A ball nut (14) is threaded onto the outer side of the ball screw (12). A fixing bracket (13) is mounted on the top plate (10). (10) is rotatably connected to the fixed frame (13). A connecting frame (15) is connected to the ball nut (14). A pressure plate (16) is installed below the connecting frame (15). The pressure plate (16) is slidably connected to the top plate (10). A support assembly (17), a traction assembly (18), and a lifting assembly (19) are installed on the first connecting shell (8). A second rotating plate (21) is rotatably connected to the first connecting shell (8). A clamping assembly (20) and a clamping plate (22) are installed on the second rotating plate (21). A pressure sensor (23) is installed below the pressure plate (16). An installation plate (24) is provided below the pressure sensor (23).

2. The stone-plastic box compressive strength testing device according to claim 1, characterized in that, A drive assembly (5) is installed on the support block (2), and an adjustment assembly (7) is installed on the support plate (4). The drive assembly (5) includes an outer bushing (501) rotatably mounted on the support block (2). A connecting handle (502) and a first motor (503) are respectively installed on both sides of the outer bushing (501). A first rubber wheel (504) is fixedly connected to the output shaft of the first motor (503).

3. The stone-plastic box compressive strength testing device according to claim 2, characterized in that, The switching component (6) includes a docking groove (601) opened on the support base (1), a locking rod (602) is fitted in the docking groove (601), a first connecting plate (603) is provided on the outside of the support base (1), a first electric push rod (604) and a second electric push rod (605) are installed on the first connecting plate (603), the first electric push rod (604) is connected to the locking rod (602), a second connecting plate (606) is connected above the second electric push rod (605), a side rod (607) is installed on the second connecting plate (606), and the side rod (607) is connected to the top plate (10).

4. The stone-plastic box compressive strength testing device according to claim 3, characterized in that, A guide rod (608) is fixedly installed on the first connecting plate (603), and the guide rod (608) passes through the interior of the second connecting plate (606).

5. The stone-plastic box compressive strength testing device according to claim 2, characterized in that, The adjustment component (7) includes a mounting groove (701) opened on the support plate (4), a mounting block (702) is installed in the mounting groove (701), a gap is provided between the mounting groove (701) and the mounting block (702), a bushing (703) is fixedly connected to the bottom of the mounting block (702), a second ball shaft (704) is rotatably installed in the bushing (703), a stud (705) is fixedly connected to the bottom of the second ball shaft (704), the stud (705) is threadedly connected to the support base (1), a second rubber wheel (707) is rotatably installed on the support base (1), a connecting block (706) is slidably installed in the second rubber wheel (707), and the top of the connecting block (706) is connected to the stud (705).

6. The device for testing the compressive strength of a stone-plastic box according to claim 1, characterized in that, The support assembly (17) includes a third motor (1701) fixedly connected to the first connecting shell (8). A first synchronous pulley (1702) is fixedly connected to the output shaft of the third motor (1701). A first synchronous belt (1703) is installed on the outside of the first synchronous pulley (1702). A second synchronous pulley (1710) is installed above the first synchronous belt (1703). A bidirectional screw (1704) is fixedly installed on the second synchronous pulley (1710). A slider (1705) is threadedly connected to both sides of the bidirectional screw (1704). The slider (1705) is slidably installed in the second connecting shell (9). A first convex plate (1706) is fixedly connected to the slider (1705). A second convex plate (1707) is attached to both sides of the first convex plate (1706). A support shell (1708) is installed above the second convex plate (1707). A first rotating plate (1709) is rotatably connected inside the support shell (1708).

7. The device for testing the compressive strength of a stone-plastic box according to claim 6, characterized in that, The two adjacent first rotating plates (1709) are rotatably connected, and the support shell (1708) located in the middle of the second connecting shell (9) is fixedly connected to the second connecting shell (9).

8. The device for testing the compressive strength of a stone-plastic box according to claim 1, characterized in that, The traction assembly (18) includes a fourth motor (1801) mounted on the first connecting shell (8). A third synchronous pulley (1802) and a winding pulley (1803) are fixedly connected to the output shaft of the fourth motor (1801). A second synchronous belt (1804) is mounted on the third synchronous pulley (1802). Traction steel ropes (1805) are wound on both sides of the winding pulley (1803). A guide wheel (1806) is provided on the outer side of the traction steel ropes (1805).

9. The stone-plastic box compressive strength testing device according to claim 8, characterized in that, The lifting assembly (19) includes an outer frame (1904) slidably mounted on the first connecting shell (8), a baffle (1905) fixedly connected to the outer frame (1904), a second screw (1902) rotatably mounted on the first connecting shell (8), a fourth synchronous pulley (1901) provided on the right side of the second synchronous belt (1804), and a damping block (1903) provided between the fourth synchronous pulley (1901) and the second screw (1902).

10. The stone-plastic box compressive strength testing device according to claim 8, characterized in that, The clamping assembly (20) includes a first spring (2001) fixedly connected to the second rotating plate (21), a first movable plate (2002) fixedly mounted on the first spring (2001), a second spring (2003) fixedly mounted on the first movable plate (2002), a second movable plate (2004) fixedly mounted on the second spring (2003), and slide rods (2005) provided on both sides of the second movable plate (2004). The slide rods (2005) pass through the interior of the second movable plate (2004) and the second rotating plate (21). The slide rods (2005) are connected to the clamping plate (22). The guide wheel (1806) is mounted on the second movable plate (2004). The first movable plate (2002) and the slide rods (2005) are fixedly connected.

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