A paper tube compression strength testing device and method of use thereof

Abstract

The application relates to the technical field of paper tube detection equipment, and discloses a paper tube compression strength testing device and a use method thereof, which comprises an equipment base, the bottom of the equipment base is fixedly connected with a plurality of supporting legs, the top of the equipment base is provided with a plurality of sliding grooves, and the sliding grooves are slidably connected with testing box bodies. In the application, the paper tube in the fixed cylinder one is driven to move upwards by the upper moving plate, meanwhile, the lower moving plate on the rotating rod is driven to move downwards by the rotating rod, the lower moving plate drives the fixed cylinder two to move downwards, the two screw grooves on the rotating rod are symmetrically arranged about the axis center of the testing hydraulic rod, so that the moving distance of the fixed cylinder one is equal to the moving distance of the fixed cylinder two, until the top end of the paper tube enters the inside of the fixed cylinder two, the setting is favorable for fixing the two ends of the paper tubes with different lengths, and is favorable for aligning the midpoint of the paper tubes with different lengths with the testing hydraulic rod, so that the stress point of the paper tube is located at the midpoint of the paper tube, and the testing data is ensured to be relatively accurate.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of paper tube detection equipment, in particular to a paper tube compressive strength testing device and a use method thereof. BACKGROUND

[0002] The paper tube compressive strength testing device is a device for evaluating the pressure bearing capacity of paper tubes, widely used in paper tube production, quality control, and transportation packaging fields. It simulates the actual compression load that the paper tube receives during use to measure its compressive strength, ensuring that the paper tube can meet the requirements during transportation, storage, and use.

[0003] Most of the paper tube compressive strength testing devices in the prior art can meet the pressure testing requirements. When the paper tube is subjected to pressure testing, the test hydraulic mechanism needs to apply pressure to the side wall of the paper tube. Due to the different force positions of paper tubes of different lengths during testing, the test data cannot be directly compared horizontally. Therefore, for paper tubes of different lengths, the test hydraulic mechanism should be aligned with the center point of different paper tubes, so that the test data can be directly compared horizontally. SUMMARY

[0004] The present application aims to provide a paper tube compressive strength testing device and a use method thereof to solve the problems raised in the background.

[0005] To solve the above technical problems, the present application is realized by the following technical scheme:

[0006] The present application is a paper tube compressive strength testing device and a use method thereof, which includes a device base, a plurality of support legs fixedly connected to the bottom of the device base, a plurality of sliding grooves opened in the top of the device base, a test box body slidingly connected inside the sliding grooves, a control panel provided on the side of the test box body, a test hydraulic rod provided inside the test box body, a plurality of support frames fixedly connected to the top of the device base, and a top support plate fixedly connected to the end of the support frame away from the device base.

[0007] The centering testing mechanism includes a plurality of positioning holes opened in the bottom of the sliding groove, a plurality of bolt holes opened in the bottom of the test box body, a drive motor fixedly connected to the bottom of the device base, a threaded rod fixedly connected to the output end of the drive motor, a plurality of limiting sliding rods fixedly connected to the bottom of the device base, and a moving table rotatably connected to the end of the threaded rod away from the drive motor.

[0008] Further, the intermediate test mechanism further comprises a plurality of rotating rods rotatably connected to the moving table, a plurality of threaded grooves are formed in the rotating rods, a gear is fixedly connected to the bottom of the rotating rods, a plurality of racks are fixedly connected to the bottom of the equipment base, the gear is engaged with the racks, a moving plate is rotatably connected in the threaded groove of the rotating rod, a fixed cylinder one is fixedly connected above the moving plate, a moving plate is rotatably connected in the threaded groove of the rotating rod away from the moving plate, a sliding block is rotatably connected to the top of the rotating rod, the sliding block is slidably connected to the top supporting plate, and a fixed cylinder two is fixedly connected to the bottom of the moving plate.

[0009] Further, a righting mechanism is arranged above the moving table, the righting mechanism comprises a plurality of extrusion rods fixedly connected above the moving table, an extrusion groove is formed in one end of the extrusion rod close to the fixed cylinder one, a plurality of limiting rods are fixedly connected to the side wall of the fixed cylinder one, and a reset spring is sleeved on the limiting rod.

[0010] Further, the righting mechanism further comprises a connecting rod slidably connected to the end of the limiting rod away from the fixed cylinder one, extrusion telescopic rods are fixedly connected to the two ends of the connecting rod, the end of the extrusion telescopic rod away from the fixed cylinder one is extruded with the extrusion groove on the extrusion rod, an extrusion spring is sleeved on the end of the extrusion telescopic rod close to the fixed cylinder one, and a righting arc-shaped rod is fixedly connected to the end of the extrusion telescopic rod close to the fixed cylinder one.

[0011] Further, the inside of the fixed cylinder one and the fixed cylinder two is provided with a fixing mechanism, the fixing mechanism comprises a plurality of telescopic rods one fixedly connected above the moving plate, a telescopic spring is sleeved on the end of the telescopic rod one away from the moving plate, a sliding disc is fixedly connected to the end of the telescopic rod one away from the moving plate, and the sliding disc is slidably connected to the inner wall of the fixed cylinder one.

[0012] Further, the fixing mechanism further comprises a plurality of fixing grooves formed on the sliding disc, a sliding block is slidably connected in the fixing groove, a fixed telescopic rod is rotatably connected to the bottom of the sliding block, the end of the fixed telescopic rod away from the sliding block is rotatably connected to the inner wall of the fixed cylinder one, and an outer wall clamping piece is fixedly connected to the top of the sliding block.

[0013] Further, the inside of the fixed cylinder one and the fixed cylinder two is provided with an auxiliary mechanism, the auxiliary mechanism comprises a limiting column fixedly connected above the sliding disc, a plurality of giving-way grooves are formed in the side wall of the limiting column, a connecting rod one is rotatably connected in the giving-way groove, an inner wall clamping piece is rotatably connected to the end of the connecting rod one away from the giving-way groove, the inner wall clamping piece is rotatably connected to a connecting rod two close to the connecting rod one, an outer wall clamping piece is rotatably connected to the end of the connecting rod two away from the giving-way groove, a telescopic rod two is fixedly connected to the top of the moving plate, the top of the telescopic rod two is slidably connected in the limiting column, and the top of the telescopic rod two is rotatably connected to a plurality of connecting rod two.

[0014] A method for using a paper tube compression strength testing device, comprising the following steps:

[0015] Step one: centering test paper tube;

[0016] Step two: righting test paper tube;

[0017] Step three: fixing test paper tube.

[0018] The present application has the following beneficial effects:

[0019] (1), when using the paper tube compressive strength testing device, first, the paper tube to be detected is placed in the inside of the fixed cylinder one, at this time, the driving motor is started, the output end of the driving motor rotates to drive the threaded rod to rotate, the threaded rod rotates to drive the moving table to move along the limiting slide rod to the end close to the test hydraulic rod, the moving table drives the rotating rod to move to the end close to the test hydraulic rod, at this time, the gear at the bottom of the rotating rod is engaged with the rack, the rotating rod rotates in the process of moving, the rotating rod rotates to drive the upward moving plate on the rotating rod to move upward along the rotating rod, the upward moving plate drives the paper tube in the fixed cylinder one to move upward, at the same time, the rotating rod drives the downward moving plate on the rotating rod to move downward, the downward moving plate drives the fixed cylinder two to move downward, since the two threaded grooves on the rotating rod are symmetrically arranged about the axis center of the test hydraulic rod, so the distance of upward movement of the fixed cylinder one is equal to the distance of downward movement of the fixed cylinder two, until the top end of the paper tube enters the inside of the fixed cylinder two, this setting is beneficial to fixing the two ends of the paper tube with different lengths, on the one hand, and on the other hand, it is beneficial to align the midpoint of the paper tube with the test hydraulic rod, so that the stress point of the paper tube is located at the midpoint of the paper tube, ensuring that the test data is more accurate; when the top end of the paper tube enters the inside of the fixed cylinder two, the driving motor stops rotating, at this time, the position of the test box body is adjusted, and then the bolt is inserted into the positioning hole through the bolt hole, and the test box body is fixed in the sliding groove.

[0020] (2), by setting the righting mechanism, when the gear rotates to drive the rotating rod to rotate, the rotating rod rotates to drive the fixed cylinder one on the upward moving plate to move upward, the fixed cylinder one drives the limiting rod to move upward, the limiting rod moves upward to drive the connecting rod on the several extrusion expansion rods to move upward, the extrusion expansion rods move upward to extrude the extrusion grooves on the extrusion rod, under the extrusion of the extrusion grooves, the extrusion expansion rods slide along the limiting rod to the inside of the fixed cylinder one, at this time, the connecting rod extrudes the connecting rod along the limiting rod, the extrusion expansion rod drives the righting arc-shaped rod to extrude the outer wall close to the paper tube, this setting is beneficial to the righting arc-shaped rod to preliminarily fix the bottom of the paper tube, on the one hand, and on the other hand, it is beneficial to the several righting arc-shaped rods to right the paper tube, so that the top end of the paper tube smoothly enters the inside of the fixed cylinder two.

[0021] (3), the present application, by setting the fixed mechanism, when the top of the paper tube enters the inside of the fixed cylinder two, the top of the paper tube is extruded with the sliding disc inside the fixed cylinder two, at this time, the bottom of the paper tube is extruded with the sliding disc inside the fixed cylinder one, the sliding disc is extruded along the fixed cylinder one to extrude the telescopic rod one, the sliding disc moves down to drive the sliding block at the end of the fixed telescopic rod one to move along the fixed groove to the circular movement of the sliding disc, at this time, the sliding block drives the outer wall clamping piece to move to the outer wall of the paper tube, at this time, the outer wall clamping piece is extruded with the outer wall of the paper tube, which is beneficial to the outer wall clamping piece fixing the two ends of the paper tube, so as to keep the paper tube stable during the strength test, so that the test data is more accurate.

[0022] (4), the present application, by setting the auxiliary mechanism, when the sliding disc is extruded downward by the paper cylinder, the limiting column inside the paper tube moves downward along with the sliding disc, at this time, the limiting column and the top of the telescopic rod two produce relative displacement, the top of the telescopic rod two slides upward along the inner wall of the limiting column, the inner wall clamping piece at one end of the plurality of connecting rods two is driven by the top of the telescopic rod two to move to the inner wall of the paper tube, when the driving motor stops rotating, one side of the inner wall clamping piece is clamped with the inner wall of the paper tube, which is beneficial to the auxiliary fixing of the two ends of the paper tube, and is also beneficial to the improvement of the strength of the two ends of the paper tube, avoiding the extrusion force of the fixed mechanism on the outer wall of the paper tube being too large, so as to avoid the damage of the outer wall clamping piece in the fixed mechanism to the two ends of the paper tube due to the extrusion force being too large, which is beneficial to the stability of the device detection.

[0023] Of course, any product implementing the present application does not necessarily need to achieve all the advantages described above. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiment description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creating laborious work.

[0025] Figure 1 It is the overall structure diagram of the present application;

[0026] Figure 2 It is another view of the overall structure diagram of the present application;

[0027] Figure 3 It is the structure diagram of the centering test mechanism of the present application;

[0028] Figure 4 It is the local structure diagram of the centering test mechanism of the present application;

[0029] Figure 5 It is the overall structure diagram of the present application Figure 4Enlarged view of middle A;

[0030] Figure 6 Structure diagram of the righting mechanism of the application;

[0031] Figure 7 Structure diagram of the righting mechanism of the application; Figure 6 Enlarged view of middle B;

[0032] Figure 8 Structure diagram of the fixing mechanism of the application;

[0033] Figure 9 Structure diagram of the fixing mechanism of the application; Figure 8 Enlarged view of middle C;

[0034] Figure 10 Structure diagram of the auxiliary mechanism of the application;

[0035] Figure 11 Structure diagram of the auxiliary mechanism of the application; Figure 10 Enlarged view of middle D;

[0036] Figure 12 Flow chart of the use method of the application.

[0037] In the drawings, the components represented by each reference numeral are listed as follows:

[0038] In the drawings, 1, device base; 11, support leg; 12, sliding groove; 13, test box body; 14, control panel; 15, test hydraulic rod; 16, support frame; 17, top support plate; 2, centering test mechanism; 201, positioning hole; 202, bolt hole; 203, drive motor; 204, threaded rod; 205, limit sliding rod; 206, moving table; 207, rotating rod; 208, gear; 209, rack; 210, upward moving plate; 211, fixed cylinder one; 212, downward moving plate; 213, sliding block; 214, fixed cylinder two; 3, righting mechanism; 301, extrusion rod; 302, extrusion groove; 303, limit rod; 304, return spring; 305, connecting rod; 306, extrusion telescopic rod; 307, extrusion spring; 308, righting arc-shaped rod; 4, fixing mechanism; 401, telescopic rod one; 402, telescopic spring; 403, sliding disc; 404, fixed groove; 405, sliding block; 406, fixed telescopic rod; 407, outer wall clamping piece; 5, auxiliary mechanism; 501, limit column; 502, give-way groove; 503, connecting rod one; 504, inner wall clamping piece; 505, connecting rod two; 506, telescopic rod two. DETAILED DESCRIPTION

[0039] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts are within the scope of the present application.

[0040] Embodiment 1, please refer to Figures 1-7 As shown in the figure, the present application is a kind of paper tube compressive strength testing device and its using method, including equipment base 1, the bottom of equipment base 1 is fixedly connected with a plurality of support legs 11, the top of equipment base 1 is provided with a plurality of sliding grooves 12, the inside of sliding groove 12 is slidably connected with test box 13, the side of test box 13 is provided with control panel 14, the inside of test box 13 is provided with test hydraulic rod 15, the top of equipment base 1 is fixedly connected with a plurality of support frames 16, the end of support frame 16 away from equipment base 1 is fixedly connected with top support plate 17, further comprising:

[0041] Centering testing mechanism 2, centering testing mechanism 2 includes a plurality of positioning holes 201 opened in the bottom of sliding groove 12, a plurality of bolt holes 202 are opened in the bottom of test box 13, the bottom of equipment base 1 is fixedly connected with driving motor 203, the output end of driving motor 203 is fixedly connected with threaded rod 204, the bottom of equipment base 1 is fixedly connected with a plurality of limiting sliding rods 205, the end of threaded rod 204 away from driving motor 203 is rotatably connected with moving table 206.

[0042] The center test mechanism 2 further comprises a plurality of rotating rods 207 rotatably connected to the moving table 206, a plurality of threaded grooves are formed in the rotating rods 207, the bottom of the rotating rods 207 is fixedly connected with a gear 208, the bottom of the equipment base 1 is fixedly connected with a plurality of racks 209, the gear 208 is engaged with the racks 209, the threaded grooves in the rotating rods 207 are rotatably connected with an upward moving plate 210, the upward moving plate 210 is fixedly connected with a fixed cylinder one 211 above, the threaded grooves in the end of the rotating rods 207 away from the upward moving plate 210 are rotatably connected with a downward moving plate 212, the top of the rotating rods 207 is rotatably connected with a sliding block 213, the sliding block 213 is slidingly connected with the top supporting plate 17, the bottom of the downward moving plate 212 is fixedly connected with a fixed cylinder two 214, the function of the component is that when the paper tube compressive strength testing device is used, the paper tube to be detected is first placed in the fixed cylinder one 211, at this time the driving motor 203 is started, the output end of the driving motor 203 rotates to drive the threaded rod 204 to rotate, the threaded rod 204 rotates to drive the moving table 206 to move along the limiting slide rod 205 to the end close to the test hydraulic rod 15, the moving table 206 drives the rotating rods 207 to move to the end close to the test hydraulic rod 15, at this time the gear 208 at the bottom of the rotating rods 207 is engaged with the racks 209, the rotating rods 207 rotate during the movement, the rotating rods 207 rotate to drive the upward moving plate 210 on the rotating rods 207 to move upward along the rotating rods 207, the upward moving plate 210 drives the paper tube in the fixed cylinder one 211 to move upward, at the same time the rotating rods 207 drive the downward moving plate 212 on the rotating rods 207 to move downward, the downward moving plate 212 drives the fixed cylinder two 214 to move downward, since the two threaded grooves on the rotating rods 207 are symmetrically arranged about the axis center of the test hydraulic rod 15, the upward moving distance of the fixed cylinder one 211 is equal to the downward moving distance of the fixed cylinder two 214, until the top end of the paper tube enters the inside of the fixed cylinder two 214, this arrangement is conducive to fixing the two ends of the paper tube with different lengths, and is conducive to aligning the midpoint of the paper tube with the test hydraulic rod 15, so that the stress point of the paper tube is located at the midpoint of the paper tube, and the test data is ensured to be more accurate; when the top end of the paper tube enters the inside of the fixed cylinder two 214, the driving motor 203 stops rotating, at this time the position of the test box 13 is adjusted, the bolt is inserted into the positioning hole 201 through the bolt hole 202, and the test box 13 is fixed in the sliding groove 12.

[0043] A righting mechanism 3 is arranged above the moving table 206, the righting mechanism 3 comprises a plurality of extrusion rods 301 fixedly connected above the moving table 206, an extrusion groove 302 is formed in the end of the extrusion rods 301 close to the fixed cylinder one 211, a plurality of limiting rods 303 are fixedly connected to the side wall of the fixed cylinder one 211, and the limiting rods 303 are sleeved with return springs 304.

[0044] The righting mechanism 3 further comprises a connecting rod 305 slidingly connected to the limiting rod 303 away from the one end of the fixed cylinder 211, both ends of the connecting rod 305 are fixedly connected with extrusion telescopic rods 306, the one end of the extrusion telescopic rod 306 away from the fixed cylinder 211 is extruded with the extrusion slot 302 on the extrusion rod 301, the one end of the extrusion telescopic rod 306 close to the fixed cylinder 211 is sleeved with an extrusion spring 307, and the one end of the extrusion telescopic rod 306 close to the fixed cylinder 211 is fixedly connected with a righting arc-shaped rod 308. The function of this component is to set the righting mechanism 3, when the gear 208 rotates to drive the rotating rod 207 to rotate, the rotating rod 207 rotates to drive the fixed cylinder 211 on the upward moving plate 210 to move upward, the fixed cylinder 211 drives the limiting rod 303 to move upward, the limiting rod 303 drives the extrusion telescopic rods 306 on the connecting rod 305 to move upward, the extrusion telescopic rods 306 are extruded with the extrusion slot 302 on the extrusion rod 301, under the extrusion of the extrusion slot 302, the extrusion telescopic rods 306 slide along the limiting rod 303 to the inside of the fixed cylinder 211, at this time, the connecting rod 305 extrudes the connecting rod 305 along the limiting rod 303, the extrusion telescopic rods 306 drive the righting arc-shaped rod 308 to extrude close to the outer wall of the paper tube, which is beneficial to the preliminary fixation of the righting arc-shaped rod 308 on the bottom of the paper tube, and is beneficial to the righting of the paper tube by the plurality of righting arc-shaped rods 308, so that the top end of the paper tube smoothly enters the inside of the fixed cylinder 214.

[0045] The difference between example 2 and example 1 is that, as shown in Figures 1-12 The inside of the fixed cylinder 211 and the fixed cylinder 214 is provided with a fixing mechanism 4, the fixing mechanism 4 comprises a plurality of telescopic rods 401 fixedly connected above the upward moving plate 210, the one end of the telescopic rod 401 away from the upward moving plate 210 is sleeved with a telescopic spring 402, the one end of the telescopic rod 401 away from the upward moving plate 210 is fixedly connected with a sliding disc 403, and the sliding disc 403 is slidingly connected to the inner wall of the fixed cylinder 211.

[0046] The fixing mechanism 4 further comprises a plurality of fixing grooves 404 formed on the sliding disc 403, a sliding block 405 is slidably connected in the fixing grooves 404, the bottom of the sliding block 405 is rotatably connected with a fixed telescopic rod 406, the end of the fixed telescopic rod 406 away from the sliding block 405 is rotatably connected with the inner wall of the fixed cylinder 211, and the top of the sliding block 405 is fixedly connected with an outer wall clamping piece 407. When the top end of the paper tube enters the inside of the fixed cylinder 214, the top end of the paper tube is pressed against the sliding disc 403 in the inside of the fixed cylinder 214, at this time, the bottom of the paper tube is pressed against the sliding disc 403 in the inside of the fixed cylinder 211, the sliding disc 403 is pressed downwards along the fixed cylinder 211 to press the telescopic rod 401, the sliding disc 403 moves downwards to drive the sliding block 405 at one end of the fixed telescopic rod 406 to move along the fixing groove 404 to the circle of the sliding disc 403, at this time, the sliding block 405 drives the outer wall clamping piece 407 to move to the outer wall of the paper tube, at this time, the outer wall clamping piece 407 is pressed against the outer wall of the paper tube. This arrangement is conducive to fixing the two ends of the paper tube by the outer wall clamping piece 407, thereby facilitating the stability of the paper tube during the strength test, so that the test data is more accurate.

[0047] The inside of the fixed cylinder 211 and the fixed cylinder 214 is provided with an auxiliary mechanism 5, the auxiliary mechanism 5 comprises a limiting column 501 fixedly connected above the sliding disc 403, a plurality of accommodating grooves 502 are formed in the side wall of the limiting column 501, a connecting rod 503 is rotatably connected in the accommodating groove 502, an inner wall clamping piece 504 is rotatably connected at the end of the connecting rod 503 away from the accommodating groove 502, a connecting rod 505 is rotatably connected on the side of the inner wall clamping piece 504 close to the connecting rod 503, the top of the upper moving plate 210 is fixedly connected with a telescopic rod 506, the top of the telescopic rod 506 is slidably connected in the inside of the limiting column 501, and the top of the telescopic rod 506 is rotatably connected with a plurality of connecting rods 505. When the sliding disc 403 is pressed downwards by the paper cylinder, the limiting column 501 in the paper tube moves downwards along with the sliding disc 403, at this time, the limiting column 501 and the top of the telescopic rod 506 produce relative displacement, the top of the telescopic rod 506 slides upwards along the inner wall of the limiting column 501, and the top of the telescopic rod 506 drives the inner wall clamping piece 504 at one end of the plurality of connecting rods 505 to move to the inner wall of the paper tube. When the driving motor 203 stops rotating, one side of the inner wall clamping piece 504 is clamped with the inner wall of the paper tube. This arrangement is conducive to auxiliary fixing the two ends of the paper tube, and is conducive to improving the strength of the two ends of the paper tube, avoiding excessive pressing force of the fixing mechanism 4 on the outer wall of the paper tube, thereby avoiding damage to the two ends of the paper tube caused by excessive pressing force of the outer wall clamping piece 407 in the fixing mechanism 4, and this arrangement is conducive to ensuring the stability of the device detection.

[0048] A method of using a paper tube compression strength testing device, comprising the following steps:

[0049] Step one: centering the test paper tube;

[0050] Step two: centering the test paper tube;

[0051] Step three: securing the test paper tube.

[0052] One specific application of this embodiment is:

[0053] When the paper tube compression strength testing device is used, first, the paper tube to be detected is placed into the fixed cylinder one 211, at this time, the driving motor 203 is started, the output end of the driving motor 203 rotates to drive the threaded rod 204 to rotate, the threaded rod 204 rotates to drive the moving table 206 to move along the limiting slide rod 205 to the end close to the test hydraulic rod 15, the moving table 206 drives the rotating rod 207 to move to the end close to the test hydraulic rod 15, at this time, the gear 208 at the bottom of the rotating rod 207 is engaged with the rack 209, the rotating rod 207 rotates in the process of moving, the rotating rod 207 rotates to drive the up-moving plate 210 on the rotating rod 207 to move upwards along the rotating rod 207, the up-moving plate 210 drives the paper tube in the fixed cylinder one 211 to move upwards, at the same time, the rotating rod 207 drives the down-moving plate 212 on the rotating rod 207 to move downwards, the down-moving plate 212 drives the fixed cylinder two 214 to move downwards, since the two threaded grooves on the rotating rod 207 are symmetrically arranged about the axis center of the test hydraulic rod 15, so the moving distance of the fixed cylinder one 211 is equal to the descending distance of the fixed cylinder two 214, until the top end of the paper tube enters the inside of the fixed cylinder two 214, this arrangement is beneficial to fixing the two ends of the paper tube with different lengths, and is beneficial to aligning the midpoint of the paper tube with the test hydraulic rod 15, so that the stress point of the paper tube is located at the midpoint of the paper tube, and the test data is ensured to be more accurate; when the top end of the paper tube enters the inside of the fixed cylinder two 214, the driving motor 203 stops rotating, at this time, the position of the test box body 13 is adjusted, the bolt is inserted into the positioning hole 201 through the bolt hole 202, and the test box body 13 is fixed in the sliding groove 12; by arranging the righting mechanism 3, when the gear 208 rotates to drive the rotating rod 207 to rotate, the rotating rod 207 rotates to drive the fixed cylinder one 211 on the up-moving plate 210 to move upwards, the fixed cylinder one 211 drives the limiting rod 303 to move upwards, the limiting rod 303 moves upwards to drive the plurality of extrusion telescopic rods 306 on the connecting rod 305 to move upwards, the extrusion telescopic rods 306 move upwards to be extruded with the extrusion grooves 302 on the extrusion rod 301, under the extrusion of the extrusion grooves 302, the extrusion telescopic rods 306 slide along the limiting rod 303 into the inside of the fixed cylinder one 211, at this time, the connecting rod 305 is extruded along the limiting rod 303, the extrusion telescopic rods 306 drive the righting arc-shaped rods 308 to extrude close to the outer wall of the paper tube, this arrangement is beneficial to preliminarily fixing the bottom of the paper tube by the righting arc-shaped rods 308, and is beneficial to righting the paper tube by the plurality of righting arc-shaped rods 308, so that the top end of the paper tube smoothly enters the inside of the fixed cylinder two 214;

[0054] When the top end of the paper tube enters the inside of the fixing cylinder two 214, the top end of the paper tube is extruded with the sliding disc 403 inside the fixing cylinder two 214, at this time, the bottom of the paper tube is extruded with the sliding disc 403 inside the fixing cylinder one 211, the sliding disc 403 is extruded to extrude the telescopic rod one 401 along the fixing cylinder one 211, the sliding disc 403 moves downward to drive the sliding block 405 at one end of the fixed telescopic rod 406 to move along the fixed groove 404 to the circular movement of the sliding disc 403, at this time, the sliding block 405 drives the outer wall clamping piece 407 to move to the outer wall of the paper tube, at this time, the outer wall clamping piece 407 is extruded with the outer wall of the paper tube, which is beneficial to the outer wall clamping piece 407 to fix the two ends of the paper tube, so as to ensure the stability of the paper tube in the strength test, so that the test data is more accurate; by setting the auxiliary mechanism 5, when the sliding disc 403 is extruded downward by the paper tube, the limiting column 501 inside the paper tube moves downward along with the sliding disc 403, at this time, the limiting column 501 and the top of the telescopic rod two 506 produce relative displacement, the top of the telescopic rod two 506 slides upward along the inner wall of the limiting column 501, the inner wall clamping piece 504 at one end of the plurality of connecting rods two 505 is driven by the top of the telescopic rod two 506 to move to the inner wall of the paper tube, when the driving motor 203 stops rotating, one side of the inner wall clamping piece 504 is clamped with the inner wall of the paper tube, which is beneficial to the two ends of the paper tube, on the one hand, and on the other hand, it is beneficial to improve the strength of the two ends of the paper tube, avoid the extrusion force of the outer wall clamping piece 407 in the fixing mechanism 4 on the outer wall of the paper tube being too large, so as to avoid the outer wall clamping piece 407 in the fixing mechanism 4 from damaging the two ends of the paper tube due to the extrusion force being too large, which is beneficial to ensure the stability of the device detection.

[0055] The preferred embodiments of the application disclosed above are only used to help explain the application. The preferred embodiments do not describe all the details and limit the application to the specific embodiments described. Obviously, many modifications and changes can be made according to the content of the specification. The embodiments are selected and described in the specification in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited by the claims and their entire scope and equivalents.

Claims

1. A paper tube compressive strength testing device, comprising a device base (1), wherein a plurality of support legs (11) are fixedly connected to the bottom of the device base (1), a plurality of sliding grooves (12) are provided on the top of the device base (1), a test chamber (13) is slidably connected inside the sliding grooves (12), a control panel (14) is provided on the side of the test chamber (13), a test hydraulic rod (15) is provided inside the test chamber (13), a plurality of support frames (16) are fixedly connected to the top of the device base (1), and a top support plate (17) is fixedly connected to one end of the support frame (16) away from the device base (1), characterized in that, Also include: The centering test mechanism (2) includes a plurality of positioning holes (201) opened in the bottom of the chute (12), the bottom of the test box (13) is provided with a plurality of bolt holes (202), the bottom of the equipment base (1) is fixedly connected with a driving motor (203), the output end of the driving motor (203) is fixedly connected with a threaded rod (204), the bottom of the equipment base (1) is fixedly connected with a plurality of limiting sliding rods (205), one end of the threaded rod (204) away from the driving motor (203) is rotatably connected with a moving table (206); The centering test mechanism (2) further comprises a plurality of rotating rods (207) rotatably connected to the moving table (206), a plurality of threaded grooves are formed in the rotating rod (207), the bottom of the rotating rod (207) is fixedly connected with a gear (208), the bottom of the equipment base (1) is fixedly connected with a plurality of racks (209), the gear (208) is engaged with the rack (209), the threaded groove in the rotating rod (207) is rotatably connected with an upper moving plate (210), the upper moving plate (210) is fixedly connected with a fixed cylinder one (211) above, the threaded groove in the end of the rotating rod (207) away from the upper moving plate (210) is rotatably connected with a lower moving plate (212), the top of the rotating rod (207) is rotatably connected with a sliding block (213), the sliding block (213) is slidably connected with the top supporting plate (17), the bottom of the lower moving plate (212) is fixedly connected with a fixed cylinder two (214); The moving table (206) is provided with a righting mechanism (3) above, the righting mechanism (3) comprises a plurality of extrusion rods (301) fixedly connected above the moving table (206), one end of the extrusion rod (301) close to the fixed cylinder one (211) is provided with an extrusion groove (302), the side wall of the fixed cylinder one (211) is fixedly connected with a plurality of limiting rods (303), the limiting rod (303) is sleeved with a reset spring (304); The righting mechanism (3) further comprises a connecting rod (305) slidably connected to the end of the limiting rod (303) away from the fixed cylinder one (211), the two ends of the connecting rod (305) are fixedly connected with extrusion telescopic rods (306), one end of the extrusion telescopic rod (306) away from the fixed cylinder one (211) is extruded with the extrusion groove (302) on the extrusion rod (301), one end of the extrusion telescopic rod (306) close to the fixed cylinder one (211) is sleeved with an extrusion spring (307), one end of the extrusion telescopic rod (306) close to the fixed cylinder one (211) is fixedly connected with a righting arc-shaped rod (308); The inside of the fixed cylinder one (211) and the fixed cylinder two (214) are provided with a fixing mechanism (4).

2. A paper tube crush strength testing device according to claim 1, wherein: The inside of the fixed cylinder one (211) and the fixed cylinder two (214) is provided with a fixing mechanism (4), the fixing mechanism (4) includes several telescopic rods one (401) fixedly connected above the upper moving plate (210), the telescopic rod one (401) is provided with a telescopic spring (402) on the end away from the upper moving plate (210), the telescopic rod one (401) is fixedly connected with a sliding disc (403) on the end away from the upper moving plate (210), the sliding disc (403) is slidably connected in the inner wall of the fixed cylinder one (211).

3. A paper tube crush strength testing apparatus as defined in claim 2, wherein: The fixing mechanism (4) further includes several fixing grooves (404) opened on the sliding disc (403), the fixing groove (404) is slidably connected with a sliding block (405), the bottom of the sliding block (405) is rotatably connected with a fixed telescopic rod (406), the end of the fixed telescopic rod (406) away from the sliding block (405) is rotatably connected with the inner wall of the fixed cylinder one (211), the top of the sliding block (405) is fixedly connected with an outer wall clamping piece (407).

4. A paper tube crush strength testing apparatus as claimed in claim 3, wherein: The inside of the fixed cylinder one (211) and the fixed cylinder two (214) is provided with an auxiliary mechanism (5), the auxiliary mechanism (5) includes a limiting column (501) fixedly connected above the sliding disc (403), the sidewall of the limiting column (501) is provided with several accommodating grooves (502), the accommodating groove (502) is rotatably connected with a connecting rod one (503), the end of the connecting rod one (503) away from the accommodating groove (502) is rotatably connected with an inner wall clamping piece (504), the side of the inner wall clamping piece (504) close to the connecting rod one (503) is rotatably connected with a connecting rod two (505), the top of the upper moving plate (210) is fixedly connected with a telescopic rod two (506), the top of the telescopic rod two (506) is slidably connected in the limiting column (501), the top of the telescopic rod two (506) is rotatably connected with several connecting rod two (505).

5. A method of using a paper tube crush strength testing apparatus, using the paper tube crush strength testing apparatus of claim 4, wherein, Including the following steps: Step one: centering test paper tube; Step two: righting test paper tube; Step three: fixing test paper tube.

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