A paper can strength testing device

Abstract

The present invention discloses a paper can strength detection device, which relates to the technical field of paper can strength detection, and comprises a base, the top of the base is fixedly connected with a mounting frame, a movable lower pressing plate is installed on the mounting frame, the top of the base is located below the lower pressing plate and a support plate is installed on the support plate, the paper can is fixed on the support plate by a fixing mechanism, and also comprises a positioning mechanism and a mounting mechanism. The present invention pushes the movable rod to slide by setting a fixing mechanism and a positioning mechanism until the top height of the movable rod is higher than the height of the paper can, then pushes the movable frame to move, the positioning rod contacts the paper can, and the paper can is fixed; the rotating ring is rotated to fix the position of the positioning rod; when the lower pressing plate moves downward, the side plate is driven to move downward, the side plate first contacts the displacement block, and the displacement block is pushed to move, and the positioning rod is automatically separated from the paper can, which is convenient for fixing the paper can before the lower pressing plate contacts the paper can.

Description

Technical Field

[0001] The invention relates to the technical field of paper can strength detection, in particular to a paper can strength detection device. Background Art

[0002] Paper cans are a kind of round cylindrical packaging products that integrate metal, paper and plastic materials, usually divided into spiral type and rewinding type. After the production of paper can products, each batch needs to be inspected, and the inspection items include weather resistance, strength and other indicators. When testing the strength of paper cans, it is necessary to place the paper cans on their side on the pallet, and then the lower pressure plate moves to contact the paper cans, squeeze the paper cans, and then test the compressive strength of the paper cans. However, when the lower pressure plate moves downward, since the paper cans are placed on their side on the pallet, the paper cans are prone to rolling and moving out of the pallet. If the paper cans are fixed by a fixing frame, the fixing frame contacts the paper cans, which is easy to affect the test results of the paper cans. In order to achieve the purpose of fixing the paper cans before the lower pressure plate contacts the paper cans, a paper can strength detection device is provided. Summary of the invention

[0003] The purpose of the present invention is to provide a paper can strength detection device in order to achieve the purpose of fixing the paper can before the lower pressing plate contacts the paper can.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a paper can strength detection device, comprising a base, a mounting frame is fixedly connected to the top of the base, a movable lower pressure plate is installed on the mounting frame, a support plate is installed on the top of the base below the lower pressure plate, and the paper can is fixed on the support plate by a fixing mechanism, the fixing mechanism comprises a fixing seat, the fixing seat is arranged on both sides of the support plate, a movable groove is opened at the top of the fixing seat, a movable rod is slidably connected to the inner wall of the movable groove, a vertical groove is opened on one side of the inner wall of the movable groove, a square block is fixedly connected to the outer wall of one side of the movable rod, a movable frame is arranged on the outer wall of the movable rod, and the movable frame One end is fixedly connected to a positioning rod, and limiting grooves are provided on both sides of the inner wall of the movable frame. The outer wall of the movable rod is fixedly connected to a limiting block, and the limiting block is slidably connected to the inner wall of the limiting groove. The inner wall of the movable frame is slidably connected to a push plate, and a first spring is connected between the push plate and the movable frame. The inner wall of the movable frame is provided with a fixing groove above the limiting groove, and the outer wall of the movable rod is provided with an annular groove. The outer wall of the movable rod is rotatably connected to a rotating ring located at the top of the annular groove, and a torsion spring is connected between the rotating ring and the annular groove. The position of the rotating ring is fixed by a positioning mechanism, and the fixed seat is installed on the outer wall of the support plate by an installation mechanism.

[0005] As a further solution of the present invention: the fixing mechanism also includes a first spur gear, which is rotatably connected to the inside of the movable rod and located on the inner wall of the rotating ring, the bottom end of the first spur gear is fixedly connected to a threaded rod, the outer wall of the threaded rod is connected to a slider, the slider is slidably connected to the inside of the movable rod, the inside of the movable rod is located below the slider and is symmetrically slidably connected to a fixed block, the fixed block extends to the outer wall of the movable rod, a second spring is connected between the fixed block and the movable rod, the bottom end of the threaded rod is fixedly connected to a rotating disk, the outer wall of the rotating disk is fixedly connected to a protrusion, the inside of the movable rod is located on one side of the rotating disk and is slidably connected to a clamping block, one end of the clamping block extends to the outer wall of the square block, and a third spring is connected between the clamping block and the movable rod.

[0006] As a further solution of the present invention: the positioning mechanism includes side plates, the side plates are fixedly connected to both sides of the lower pressure plate, the outer wall of the rotating ring is provided with a slot, the interior of the movable rod is located at the top of the rotating ring and is slidably connected with an insertion block, a fourth spring is connected between the top of the insertion block and the movable rod, the interior of the movable rod is located at the outer wall of the insertion block and is rotatably connected with a second spur gear, the interior of the movable rod is located at the outer wall of the second spur gear and is slidably connected with a displacement block, and the displacement block extends to the top of the movable rod.

[0007] As a further solution of the present invention: the mounting mechanism includes a mounting groove, which is opened on the outer wall of the support plate, and the outer walls of the two fixed seats are respectively fixedly connected with the first docking frame and the second docking frame, one end of the second docking frame is opened with a connecting groove, one side of the connecting groove is opened with a displacement groove, and one end of the connecting groove and the displacement groove is opened with a circular groove, the interior of the first docking frame is slidably connected with a displacement column extending from the first docking frame, a fifth spring is connected between the displacement column and the first docking frame, the outer wall of the displacement column is fixedly connected with a connecting plate, the outer wall of the connecting plate is rotatably connected with a rotating rod, and the outer wall of the rotating rod is fixedly connected with the displacement seat.

[0008] As a further solution of the present invention: the inner wall of the movable groove fits with the outer wall of the movable rod, the inner wall of the vertical groove fits with the outer wall of the square block, and the outer wall of the limit block fits with the inner wall of the limit groove.

[0009] As a further solution of the present invention: the inner wall of the rotating ring is provided with tooth grooves, and the tooth grooves are meshed with the first spur gear.

[0010] As a further solution of the present invention: a threaded hole is provided on the outer wall of the slider, the threaded hole matches the threaded rod, a slope is provided on one end of the fixed block facing the slider, the slope contacts the bottom end of the slider, and the outer wall of the other end of the fixed block fits with the inner wall of the fixed groove.

[0011] As a further solution of the present invention: a ratchet is provided on the inner wall of the vertical groove, and one end of the clamping block is engaged with the ratchet.

[0012] As a further solution of the present invention: the inner wall of the slot is in contact with the outer wall of the insert block, and the outer walls of the insert block and the displacement block are both provided with tooth grooves, and the tooth grooves are meshed with the second spur gear.

[0013] As a further solution of the present invention: the inner wall of the connecting groove fits with the outer wall of the rotating rod, and the outer wall of the displacement seat fits with the inner walls of the circular groove and the displacement groove.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] By setting a fixing mechanism and a positioning mechanism, the movable rod is pushed to slide until the top height of the movable rod is higher than the height of the paper can, and then the movable frame is pushed to move, the positioning rod contacts the paper can, and the paper can is fixed; the rotating ring is rotated to fix the position of the positioning rod; when the lower pressure plate moves downward, it drives the side plate to move downward, the side plate first contacts the displacement block, and pushes the displacement block to move, and the positioning rod is automatically separated from the paper can, so as to fix the paper can before the lower pressure plate contacts the paper can, to prevent the paper can from rotating before the lower pressure contact or the temporary fixing structure from obstructing the lower pressure plate, resulting in inaccurate measurement results. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 It is a structural schematic diagram of the fixing seat of the present invention;

[0018] Figure 3 It is a schematic diagram of the internal structure of the fixing base of the present invention;

[0019] Figure 4 It is a schematic diagram of the internal structure of the movable frame of the present invention;

[0020] Figure 5 It is a schematic diagram of the internal structure of the movable rod of the present invention;

[0021] Figure 6 It is a structural schematic diagram of the rotating ring of the present invention;

[0022] Figure 7 It is a schematic diagram of the installation of the displacement block of the present invention;

[0023] Figure 8 It is a schematic diagram of the installation of the first docking frame and the second docking frame of the present invention;

[0024] Fig. 9 It is a schematic diagram of the internal structure of the first docking frame and the second docking frame of the present invention.

[0025] In the figure: 1, base; 2, mounting frame; 3, lower pressure plate; 4, support plate; 5, fixing mechanism; 501, fixing seat; 502, movable groove; 503, movable rod; 504, vertical groove; 505, square block; 506, movable frame; 507, positioning rod; 508, limiting groove; 509, limiting block; 510, push plate; 511, first spring; 512, fixing groove; 513, annular groove; 514, rotating ring; 515, torsion spring; 516, first straight gear; 517, threaded rod; 518, slider; 519, fixing block; 520, first Second spring; 521, rotating disk; 522, protrusion; 523, block; 524, third spring; 6, positioning mechanism; 601, side plate; 602, slot; 603, plug block; 604, fourth spring; 605, second spur gear; 606, displacement block; 7, mounting mechanism; 701, mounting groove; 702, first docking frame; 703, second docking frame; 704, connecting groove; 705, displacement groove; 706, circular groove; 707, displacement column; 708, fifth spring; 709, connecting plate; 710, rotating rod; 711, displacement seat. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", and "set" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The following is an explanation of an embodiment of the present invention based on the overall structure of the present invention.

[0028] See also Figures 1 to 9 In an embodiment of the present invention, a paper can strength detection device includes a base 1, a mounting frame 2 is fixedly connected to the top of the base 1, a movable lower pressing plate 3 is installed on the mounting frame 2, a pressure sensor is installed on the lower pressing plate 3, and the pressure sensor is used to detect and feedback the compressive strength value of the paper can; a support plate 4 is installed at the top of the base 1 below the lower pressing plate 3, and the paper can is fixed on the support plate 4 through a fixing mechanism 5, and the fixing mechanism 5 includes a fixing seat 501, and the fixing seat 501 is arranged on both sides of the support plate 4, and a movable groove 502 is opened at the top of the fixing seat 501, and a movable rod 503 is slidably connected to the inner wall of the movable groove 502, and a vertical groove 504 is opened on one side of the inner wall of the movable groove 502, and a square block 505 is fixedly connected to the outer wall of one side of the movable rod 503, and a movable frame 506 is arranged on the outer wall of the movable rod 503, and the movable frame 50 6 is fixedly connected to a positioning rod 507, and limiting grooves 508 are provided on both sides of the inner wall of the movable frame 506. The outer wall of the movable rod 503 is fixedly connected to a limiting block 509, and the limiting block 509 is slidably connected to the inner wall of the limiting groove 508. The inner wall of the movable frame 506 is slidably connected to a push plate 510, and a first spring 511 is connected between the push plate 510 and the movable frame 506. The inner wall of the movable frame 506 is located above the limiting groove 508 and has a fixed groove 512. The outer wall of the movable rod 503 is provided with an annular groove 513. The outer wall of the movable rod 503 is rotatably connected to a rotating ring 514 located at the top of the annular groove 513, and a torsion spring 515 is connected between the rotating ring 514 and the annular groove 513. The position of the rotating ring 514 is fixed by the positioning mechanism 6, and the fixed seat 501 is installed on the outer wall of the support plate 4 by the installation mechanism 7.

[0029] The fixing mechanism 5 also includes a first spur gear 516, which is rotatably connected to the inside of the movable rod 503 and is located on the inner wall of the rotating ring 514. The bottom end of the first spur gear 516 is fixedly connected to a threaded rod 517, and the outer wall of the threaded rod 517 is connected to a slider 518. The slider 518 is slidably connected to the inside of the movable rod 503. The inside of the movable rod 503 is symmetrically slidably connected with a fixed block 519 located below the slider 518. The fixed block 519 extends to the outer wall of the movable rod 503. A second spring 520 is connected between the fixed block 519 and the movable rod 503. The bottom end of the threaded rod 517 is fixedly connected to a rotating disk 521, and the outer wall of the rotating disk 521 is fixedly connected to a protrusion 522. The inside of the movable rod 503 is located on one side of the rotating disk 521 and is slidably connected to a clamping block 523. One end of the clamping block 523 extends to the outer wall of the square block 505, and a third spring 524 is connected between the clamping block 523 and the movable rod 503.

[0030] In this embodiment: the paper can is placed sideways on the support plate 4, and then the movable rod 503 is pushed to slide in the movable groove 502, and the square block 505 slides in the vertical groove 504 to position the direction of the movable rod 503 until the top height of the movable rod 503 is higher than the height of the paper can, and then the movable frame 506 is pushed to move laterally, and the displacement of the movable frame 506 drives the positioning rod 507 to move, and the movable rod 503 squeezes the first spring 511 through the push plate 510 until the positioning rod 507 contacts the paper can, and the paper can is fixed.

[0031] Then, the rotating ring 514 is rotated, and the rotating ring 514 drives the first straight gear 516 to rotate, causing the torsion spring 515 to twist. The first straight gear 516 drives the threaded rod 517 to rotate, and the threaded rod 517 drives the slider 518 to move. The displacement of the slider 518 pushes the fixed block 519 to move, causing the second spring 520 to be squeezed, and the fixed block 519 moves into the fixed groove 512 to fix the movable rod 503 and the movable frame 506; at the same time, the threaded rod 517 rotates to drive the rotating disk 521 to rotate, and the rotating disk 521 rotates to drive the protrusion 522 to move and contact with the block 523, pushing the block 523 to move, causing the third spring 524 to be squeezed, and the block 523 moves and contacts with the vertical groove 504, and the movable rod 503 and the fixed seat 501 are fixed, thereby fixing the position of the positioning rod 507.

[0032] Please refer to Figure 1 and Figure 7The positioning mechanism 6 includes a side plate 601, which is fixedly connected to both sides of the lower pressure plate 3. A slot 602 is provided on the outer wall of the rotating ring 514. The interior of the movable rod 503 is located at the top of the rotating ring 514 and is slidably connected with an insert block 603. A fourth spring 604 is connected between the top of the insert block 603 and the movable rod 503. The interior of the movable rod 503 is located at the outer wall of the insert block 603 and is rotatably connected with a second spur gear 605. The interior of the movable rod 503 is located at the outer wall of the second spur gear 605 and is slidably connected with a displacement block 606. The displacement block 606 extends to the top of the movable rod 503.

[0033] In this embodiment: when the position of the positioning rod 507 is fixed, the rotating ring 514 rotates to drive the slot 602 to move, and the slot 602 moves to the bottom of the plug block 603. The plug block 603 is engaged into the slot 602 by the elastic force of the fourth spring 604, and the rotating ring 514 is fixed. At the same time, the displacement of the plug block 603 drives the second spur gear 605 to rotate, and the rotation of the second spur gear 605 drives the displacement block 606 to displace, and the top of the displacement block 606 moves to the top of the movable rod 503.

[0034] When the lower pressure plate 3 moves downward, the side plate 601 is driven to move downward. The side plate 601 first contacts the displacement block 606, pushing the displacement block 606 to move. The displacement of the displacement block 606 drives the second spur gear 605 to rotate. The rotation of the second spur gear 605 drives the insertion block 603 to move out of the slot 602, canceling the fixation of the rotating ring 514. The rotating ring 514 is rotated and reset by the torsion force of the torsion spring 515, and at the same time drives the slider 518 and the rotating disk 521 to reset. At this time, the fixed block 519 is moved out of the fixed slot 512 by the elastic force of the second spring 520. , the fixation of the movable frame 506 is cancelled, and the push plate 510 slides in the movable frame 506 under the elastic force of the first spring 511, so that the movable frame 506 is laterally displaced relative to the movable rod 503, driving the positioning rod 507 to separate from the paper can; at the same time, the block 523 is displaced and separated from the vertical groove 504 by the elastic force of the third spring 524, and the movable rod 503 moves downward along the movable groove 502 under the action of gravity, avoiding obstruction to the movement of the lower pressing plate 3 during the squeezing process of the paper can by the lower pressing plate 3, so as to facilitate temporary fixation of the paper can before the lower pressing plate 3 contacts the paper can.

[0035] Please refer to Figures 8 to 9The mounting mechanism 7 includes a mounting groove 701, which is provided on the outer wall of the support plate 4. The outer walls of the two fixed seats 501 are respectively fixedly connected with the first docking frame 702 and the second docking frame 703. A connecting groove 704 is provided at one end of the second docking frame 703, and a displacement groove 705 is provided on one side of the connecting groove 704. A circular groove 706 is provided at one end of the connecting groove 704 and the displacement groove 705. A displacement column 707 extending from the first docking frame 702 is slidably connected inside the first docking frame 702, and a fifth spring 708 is connected between the displacement column 707 and the first docking frame 702. The outer wall of the displacement column 707 is fixedly connected with a connecting plate 709, and the outer wall of the connecting plate 709 is rotatably connected with a rotating rod 710, and the outer wall of the rotating rod 710 is fixedly connected with a displacement seat 711.

[0036] In this embodiment: when installing the fixed seat 501, pull the connecting plate 709 away from the first docking frame 702 to move it, then connect the first docking frame 702 and the second docking frame 703 into the installation groove 701, the first docking frame 702 contacts the end surface of the second docking frame 703, then push the rotating rod 710 into the connecting groove 704, and the displacement seat 711 enters the circular groove 706 along the displacement groove 705. After completion, rotate the rotating rod 710, and the displacement seat 711 rotates into the circular groove 706 to fix the installation groove 701 and the first docking frame 702, thereby performing the installation operation on the fixed seat 501.

[0037] Please refer to Figures 2 to 3 The inner wall of the movable groove 502 fits with the outer wall of the movable rod 503 , the inner wall of the vertical groove 504 fits with the outer wall of the square block 505 , and the outer wall of the limiting block 509 fits with the inner wall of the limiting groove 508 .

[0038] In this embodiment: the movable rod 503 is pushed to slide in the movable groove 502, and the square block 505 slides in the vertical groove 504 to position the direction of the movable rod 503; the movable frame 506 is pushed to move laterally, and the displacement of the movable frame 506 drives the positioning rod 507 to move, and the movable rod 503 squeezes the first spring 511 through the push plate 510 until the positioning rod 507 contacts the paper can.

[0039] Please refer to Figure 3 to Figure 4 The inner wall of the rotating ring 514 is provided with a tooth groove, which meshes with the first spur gear 516 .

[0040] In this embodiment, the rotating ring 514 is rotated, and the rotating ring 514 drives the first spur gear 516 to rotate, causing the torsion spring 515 to twist, and the first spur gear 516 drives the threaded rod 517 to rotate.

[0041] Please refer to Figures 2 to 6A threaded hole is provided on the outer wall of the slider 518, and the threaded hole matches the threaded rod 517. A slope is provided on one end of the fixing block 519 facing the slider 518, and the slope contacts the bottom end of the slider 518. The outer wall of the other end of the fixing block 519 fits with the inner wall of the fixing groove 512.

[0042] In this embodiment: the first spur gear 516 rotates to drive the threaded rod 517 to rotate, the threaded rod 517 rotates to drive the slider 518 to move, the slider 518 moves and pushes the fixed block 519 to move, causing the second spring 520 to be squeezed, and the fixed block 519 moves into the fixed groove 512 to fix the movable rod 503 and the movable frame 506.

[0043] Please refer to Figures 2 to 6 A ratchet is provided on the inner wall of the vertical groove 504, and one end of the clamping block 523 is engaged with the ratchet.

[0044] In this embodiment: the threaded rod 517 rotates to drive the rotating disk 521 to rotate, and the rotating disk 521 rotates to drive the protrusion 522 to move and contact the block 523, pushing the block 523 to move, causing compression on the third spring 524, and the block 523 moves and contacts the vertical groove 504, performing a fixing operation between the movable rod 503 and the fixed seat 501, thereby fixing the position of the positioning rod 507.

[0045] Please refer to Figure 1 and Figure 7 The inner wall of the slot 602 fits with the outer wall of the insert block 603 , and the outer walls of the insert block 603 and the displacement block 606 are both provided with tooth grooves, which mesh with the second spur gear 605 .

[0046] In this embodiment: when the position of the positioning rod 507 is fixed, the rotating ring 514 rotates to drive the slot 602 to move, and the slot 602 moves to the bottom of the plug block 603. The plug block 603 is engaged into the slot 602 by the elastic force of the fourth spring 604, and the rotating ring 514 is fixed. At the same time, the displacement of the plug block 603 drives the second spur gear 605 to rotate, and the rotation of the second spur gear 605 drives the displacement block 606 to displace, and the top of the displacement block 606 moves to the top of the movable rod 503.

[0047] Please refer to Figures 8 to 9 The inner wall of the connecting groove 704 fits with the outer wall of the rotating rod 710 , and the outer wall of the displacement seat 711 fits with the inner walls of the circular groove 706 and the displacement groove 705 .

[0048] In this embodiment: pull the connecting plate 709 away from the first docking frame 702 to move it, then connect the first docking frame 702 and the second docking frame 703 into the installation groove 701, the first docking frame 702 contacts the second docking frame 703, then push the rotating rod 710 into the connecting groove 704, the displacement seat 711 enters the circular groove 706 along the displacement groove 705, and after completion, rotate the rotating rod 710, the displacement seat 711 rotates into the circular groove 706, and the installation groove 701 and the first docking frame 702 are fixedly connected.

[0049] What has been described above are only preferred specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A paper can strength detection device, comprising a base (1), the top of the base (1) being fixedly connected to a mounting frame (2), a movable lower pressing plate (3) being mounted on the mounting frame (2), a support plate (4) being mounted on the top of the base (1) below the lower pressing plate (3), characterized in that: The paper can is fixed on the support plate (4) by a fixing mechanism (5). The fixing mechanism (5) comprises a fixing seat (501). The fixing seat (501) is arranged on both sides of the support plate (4). A movable groove (502) is provided at the top of the fixing seat (501). A movable rod (503) is slidably connected to the inner wall of the movable groove (502). A vertical groove (504) is provided on one side of the inner wall of the movable groove (502). A square block (505) is fixedly connected to the outer wall of one side of the movable rod (503). A movable frame (506) is provided on the outer wall of the movable rod (503). One end of the movable frame (506) is fixedly connected to a positioning rod (507). Limiting grooves (508) are provided on both sides of the inner wall of the movable frame (506). A limiting block (509) is fixedly connected to the outer wall of the movable rod (503). (509) is slidably connected to the inner wall of the limiting groove (508), the inner wall of the movable frame (506) is slidably connected to a push plate (510), a first spring (511) is connected between the push plate (510) and the movable frame (506), the inner wall of the movable frame (506) is located above the limiting groove (508) and is provided with a fixing groove (512), the outer wall of the movable rod (503) is provided with an annular groove (513), the outer wall of the movable rod (503) is rotatably connected to a rotating ring (514) located at the top of the annular groove (513), a torsion spring (515) is connected between the rotating ring (514) and the annular groove (513), the position of the rotating ring (514) is fixed by a positioning mechanism (6), and the fixed seat (501) is installed on the outer wall of the support plate (4) by an installation mechanism (7); The fixing mechanism (5) further comprises a first spur gear (516), the first spur gear (516) being rotatably connected to the interior of the movable rod (503) and being located on the inner wall of the rotating ring (514), the bottom end of the first spur gear (516) being fixedly connected to a threaded rod (517), the outer wall of the threaded rod (517) being connected to a slider (518), the slider (518) being slidably connected to the interior of the movable rod (503), the interior of the movable rod (503) being symmetrically slidably connected to a fixing block (519) located below the slider (518), the fixing block (519) extending to The outer wall of the movable rod (503), a second spring (520) is connected between the fixed block (519) and the movable rod (503), the bottom end of the threaded rod (517) is fixedly connected to a rotating disk (521), the outer wall of the rotating disk (521) is fixedly connected to a protrusion (522), the inside of the movable rod (503) is slidably connected to a clamping block (523) located on one side of the rotating disk (521), one end of the clamping block (523) extends to the outer wall of the square block (505), and a third spring (524) is connected between the clamping block (523) and the movable rod (503); The positioning mechanism (6) comprises a side plate (601), wherein the side plate (601) is fixedly connected to both sides of the lower pressure plate (3); a slot (602) is provided on the outer wall of the rotating ring (514); an insert block (603) is slidably connected to the top of the rotating ring (514) inside the movable rod (503); a fourth spring (604) is connected between the top of the insert block (603) and the movable rod (503); a second spur gear (605) is rotatably connected to the outer wall of the insert block (603) inside the movable rod (503); a displacement block (606) is slidably connected to the outer wall of the second spur gear (605) inside the movable rod (503); and the displacement block (606) extends to the top of the movable rod (503).

2. A paper can strength detection device according to claim 1, characterized in that: The mounting mechanism (7) comprises a mounting groove (701), the mounting groove (701) being formed on the outer wall of the support plate (4), the outer walls of the two fixing seats (501) being respectively fixedly connected with a first docking frame (702) and a second docking frame (703), one end of the second docking frame (703) being provided with a connecting groove (704), one side of the connecting groove (704) being provided with a displacement groove (705), and one end of the connecting groove (704) and the displacement groove (705) being provided with a circular groove (706), a displacement column (707) extending from the first docking frame (702) is slidably connected inside the first docking frame (702), a fifth spring (708) is connected between the displacement column (707) and the first docking frame (702), an outer wall of the displacement column (707) is fixedly connected to a connecting plate (709), an outer wall of the connecting plate (709) is rotatably connected to a rotating rod (710), and an outer wall of the rotating rod (710) is fixedly connected to a displacement seat (711).

3. A paper can strength detection device according to claim 1, characterized in that: The inner wall of the movable groove (502) fits with the outer wall of the movable rod (503), the inner wall of the vertical groove (504) fits with the outer wall of the square block (505), and the outer wall of the limiting block (509) fits with the inner wall of the limiting groove (508).

4. A paper can strength detection device according to claim 1, characterized in that: The inner wall of the rotating ring (514) is provided with a tooth groove, and the tooth groove is meshed with the first spur gear (516).

5. A paper can strength detection device according to claim 1, characterized in that: The outer wall of the slider (518) is provided with a threaded hole, the threaded hole matches the threaded rod (517), the fixing block (519) is provided with an inclined surface at one end facing the slider (518), the inclined surface contacts the bottom end of the slider (518), and the outer wall of the other end of the fixing block (519) is in contact with the inner wall of the fixing groove (512).

6. A paper can strength detection device according to claim 1, characterized in that: The inner wall of the vertical groove (504) is provided with a ratchet tooth, and one end of the clamping block (523) is engaged with the ratchet tooth.

7. A paper can strength detection device according to claim 1, characterized in that: The inner wall of the slot (602) fits with the outer wall of the insert block (603), and the outer walls of the insert block (603) and the displacement block (606) are both provided with tooth grooves, which mesh with the second spur gear (605).

8. A paper can strength detection device according to claim 2, characterized in that: The inner wall of the connecting groove (704) fits with the outer wall of the rotating rod (710), and the outer wall of the displacement seat (711) fits with the inner walls of both the circular groove (706) and the displacement groove (705).

Images