CN215004912U

CN215004912U - Adhesion force testing device

Info

Publication number: CN215004912U
Application number: CN202120484319.1U
Authority: CN
Inventors: 姜允中
Original assignee: Labthink Instruments Co Ltd
Current assignee: Labthink Instruments Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-12-03
Anticipated expiration: 2031-03-05

Abstract

The utility model discloses an adhesion testing arrangement, include: the device comprises a machine base, a sample bearing table and a measuring rod assembly are respectively arranged on the machine base; one end of the measuring rod assembly, which is close to the sample bearing table, is connected with the measuring compression roller, and the other end of the measuring rod assembly is connected with the transmission mechanism through a connecting piece; the measuring stick subassembly includes: the force value sensor, the force value sensor sets up in fixed frame, fixed frame's one end is connected with the stiff end of force value sensor, and fixed frame's the other end is connected and is drawn to the locating part, draw to the stress end interval settlement distance of locating part and force value sensor, draw to the locating part can restrict the deformation volume of force value sensor in the direction of drawing the power. The utility model discloses the pulling of measuring staff subassembly is to the locating part and is drawn to the locating part, can restrict the deformation that the value sensor of power is drawing to and is pressing to respectively, prevents that the value sensor from transshipping, and when the value sensor transships, the overload force will be born by the locating part, protection force value sensor.

Description

Adhesion force testing device

Technical Field

The utility model relates to an adhesion test technical field especially relates to an adhesion testing arrangement.

Background

The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.

The viscosity is one of the important indexes of the emplastrum for ensuring the quality, and the viscosity of the emplastrum has close relation with the curative effect. The adhesion is an important means for evaluating the viscosity, and at present, the adhesion tester on the market generally has the following technical problems:

(1) the force value sensor is not provided with a protection device, and the force value sensor is easy to damage beyond the measuring range in the use process;

(2) the contact between the measuring compression roller and the sample is insufficient, and the measured data is unstable;

(3) different samples need different clamps, and the anchor clamps are changed loaded down with trivial details, the operation difficulty.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides an adhesion testing arrangement through power value sensor fixed knot structure, can inject the maximum deflection of power value sensor, prevents that power value sensor from transshipping, protection power value sensor.

In some embodiments, the following technical scheme is adopted:

an adhesion testing device comprising: the device comprises a machine base, a sample bearing table and a measuring rod assembly are respectively arranged on the machine base; one end of the measuring rod assembly, which is close to the sample bearing table, is connected with the measuring compression roller, and the other end of the measuring rod assembly is connected with the transmission mechanism through a connecting piece;

the measuring stick subassembly includes: the force value sensor, the force value sensor sets up in fixed frame, fixed frame's one end is connected with the stiff end of force value sensor, and fixed frame's the other end is connected and is drawn to the locating part, draw to the stress end interval settlement distance of locating part and force value sensor, draw to the locating part can restrict the deformation volume of force value sensor in the direction of drawing the power.

As a further improvement, the pulling limiting piece extends into the fixed frame, and the force value sensor can be pulled to the limiting piece for stopping when the pulling force reaches the set deformation amount.

As a further improvement, the distance between the pull limiting piece and the force bearing end of the force value sensor is adjustable.

As a further improvement, the measuring rod assembly further comprises: the pressing limiting piece is used for limiting the deformation quantity of the stressed end of the force value sensor in the pressure bearing direction; the compression direction is opposite to the tension direction;

the pressing limiting piece and the pulling limiting piece are arranged oppositely and are separated by a set distance; the pressing limiting piece is connected with the stress end of the force value sensor through the adapter sleeve; when the force value sensor is pressed by pressure to reach a set deformation amount, the force value sensor presses the limiting piece and can be pulled to the limiting piece to stop.

As a further improvement, the stress end of the force value sensor is also connected with a pull rod, and one end of the pull rod, which is connected with the stress end of the force value sensor, is arranged in the adapter sleeve and is rotatably connected with the adapter sleeve; the other end of the pull rod is connected with a measuring press roller through a support.

As a further improvement, the bracket is connected with a rotating arm through a rotating shaft, and the rotating arm is connected with a roller; and the support is also provided with a limiting plate for limiting the rotation angle of the rotating arm.

As a further improvement, the distance between the press-on limiting member and the pull-on limiting member is adjustable.

As a further improvement, the sample bearing platform comprises a bottom plate and a sample pressing plate arranged on the bottom plate; two opposite fixing strip pressing plates are arranged on the bottom plate along the moving direction of the measuring rod assembly, and the two fixing strip pressing plates are spaced by a set distance; the fixing strip pressing plate is provided with a clamping groove, and the sample fixing strip is clamped into the clamping groove; two raised platforms are arranged on the sample fixing strip; and through holes matched with the platforms are formed in the positions, corresponding to the platforms, of the pressing plates.

As a further improvement, the through hole is in a wedge-shaped structure.

As a further improvement, a touch display device is further arranged on the base.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses pull rod and switching cover rotatable coupling for the measuring stick subassembly can be in the contact width direction swing of sample, can guarantee that measurement compression roller on the measuring stick fully contacts with the sample, and measured data is more stable.

The utility model discloses the pulling of measuring staff subassembly is to the locating part and press to the locating part, can restrict the deformation that the value sensor of power was being pulled to and was pressed to respectively, prevents that the value sensor from transshipping, and when the value sensor of power transships, the overload force will be born by the locating part, protection force value sensor.

The utility model discloses an adaptation sample diversified clamping demand sets up the sample fixed strip that corresponds for the sample of difference, and the sample fixed strip is the joint structure with the fixed strip clamp plate, and it is convenient to change, can improve the efficiency of software testing of sample greatly.

The utility model discloses adopt the cooperation of wedge structure during sample fixed strip and sample clamp plate centre gripping sample, the sample centre gripping is firm to but the tensioning sample, with sample test surface fish tail when preventing the clamping sample.

Additional features and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a schematic structural diagram of an adhesion testing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a measuring rod assembly in an embodiment of the present invention;

FIG. 3 is a schematic structural view illustrating the embodiment of the present invention in which the measuring roller is moved to the right end of the sample holder;

FIG. 4 is a top view of an adhesion testing apparatus according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view of an adhesion testing device A-A according to an embodiment of the present invention;

FIG. 6 is a schematic view of the structure of the bottom plate of the sample holder of the embodiment of the present invention;

in the figure, 101 is an adjusting foot, 102 is a base, 103 is a horizontal bubble, 104 is a touch display screen;

200. a transmission mechanism, 201, a motor, 202, a speed reducer, 203, a driving wheel, 204, a motor support, 205, a synchronous belt, 206, a driven wheel support and 207, a driven wheel;

301. linear slide rail, 302, traction plate, 303, connection seat;

400. the measuring rod assembly comprises a measuring rod assembly 401, a rotating shaft 402, a fixed frame 403, a force value sensor 404, a pulling limiting piece 405, a pressing limiting piece 406, an adapter sleeve 407, a pulling rod 408, a support 409, a limiting plate 410, a rotating shaft 411, a rotating arm 412, a bearing 413 and a bearing shaft;

500. the test sample fixing device comprises a test sample bearing table, 501, a limiting block, 502, a right stop plate, 503, a handle, 504, a hand screw, 505, a test sample pressing plate, 506, a left stop plate, 507, a test sample fixing strip, 508, a pin, 509, a pressing strip, 510, a fixing strip pressing plate, 511, a bottom plate and 512 test samples; 600. and measuring the compression roller.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Example one

In one or more embodiments, disclosed is an adhesion testing apparatus, referring to fig. 1, including: the device comprises a base, a sample bearing table and a measuring rod assembly are respectively arranged on the base, one end of the measuring rod assembly, which is close to the sample bearing table, is connected with a measuring compression roller, and the other end of the measuring rod assembly is connected with a transmission mechanism through a connecting piece;

the base is provided with a linear slide rail 301, the connecting piece comprises a connecting seat 303 connected with the measuring rod assembly, the connecting seat 303 is connected with the sliding block, and the sliding block is matched with the linear slide rail 301; the coupling socket is also connected to a drive mechanism via a traction plate 302.

The transmission mechanism 200 is arranged in the base, and the transmission mechanism 200 comprises a motor 201, a speed reducer 202, a driving wheel 203, a motor support 204, a synchronous belt 205, a driven wheel 207 and a driven wheel support 206.

The motor 201 is connected with the speed reducer 202 and the driving wheel 203 and is fixed on the motor bracket 204, the driven wheel 207 is fixed on the driven wheel bracket 206, and the driven wheel 207 can freely rotate relative to the driven wheel bracket 206; the driving pulley 201 and the driven pulley 207 are coupled by a timing belt 205.

It should be noted that, the transmission mechanism 200 of the present embodiment may adopt a ball screw structure, or a rack and pinion structure, in addition to the synchronous belt structure; these are relatively conventional drive mechanisms and can be selected by those skilled in the art as desired.

The connecting seat 303 is provided with a shaft hole and is fixed on a sliding block of the linear sliding rail 301, and the connecting seat 303 is connected with the synchronous belt 205 by using a traction plate 302; the motor 201 drags the driving wheel 203, the driven wheel 207 and the synchronous belt 205 to move through the speed reducer 202, and the synchronous belt 205 drives the connecting seat 303 to do linear reciprocating motion along the linear sliding rail 301 through the traction plate 302.

Referring to fig. 2, the measuring rod assembly 400 includes: the device comprises a rotating shaft 401, a force value sensor fixing frame 402, a force value sensor 403, a pressing limiting piece 404, a pulling limiting piece 405, an adapter sleeve 406, a pull rod 407 and a bracket 408.

The measuring rod assembly 400 is hinged to the shaft hole of the connecting seat 303 of the transmission mechanism 200 through a rotating shaft 401, and can rotate relative to the transmission mechanism 200.

The force value sensor fixing frame 402 is of a frame structure, one end a is provided with a shaft hole which is hinged with the rotating shaft 401, the rotating shaft 401 and the force value sensor fixing frame 402 can rotate relatively, and the end a is also rigidly connected with a fixing end sa of the force value sensor 403 by using a screw; the end a and the opposite end b of the force value sensor fixing frame 402 clamp the force value sensor 403 in the middle, and the end b of the force value sensor fixing frame 402 is pulled to the limiting piece 404 through threaded connection;

in this embodiment, the pull-to-limit member 404 is an annular structure, and is screwed into the force value sensor fixing frame 402 through a thread, and a set gap is reserved between the pull-to-limit member and the stress end sb of the force value sensor 403, and the gap can limit the pull-to-maximum deformation amount of the force value sensor 403, and when the force value sensor receives a tensile force and reaches the set deformation amount, the pull-to-limit member can be pulled to stop, so that the overload stress of the force value sensor is avoided.

The accessible is rotatory to be drawn to the locating part and is adjusted and the clearance between the stress end sb of power value sensor to the drawing of adjusting power value sensor is to maximum deflection.

In this embodiment, when the adhesion force test is performed, the sample is in contact with the measurement pressure roller, the measurement pressure roller is affected by the adhesion force, at this time, the measurement rod assembly can bring a pulling force to the force value sensor, and the pulling direction limiting member 404 can limit the maximum deformation amount of the force value sensor, so as to prevent the force value sensor from being overloaded; meanwhile, the pulling-to-limit piece 404 can bear overload force and protect the force value sensor from being damaged.

One end za of the adapter sleeve 406 is connected and pressed to the limiting piece 405 in a threaded manner, the other end zb is provided with an unthreaded hole, a threaded hole is formed in the cylindrical surface of the unthreaded hole, the za end of the adapter sleeve 406 penetrates through the pulling limiting piece 404 of the hollow structure to be connected with the force value sensor stress end sb in a bolted manner, the pressing limiting piece 405 is also of an annular structure, the pressing limiting piece 405 does not penetrate through the pulling limiting piece 404 and is arranged opposite to the pulling limiting piece 404, a set gap is reserved between the pressing limiting piece 405 and the pulling limiting piece 404, when the force value sensor 403 is pressed, the pressing limiting piece 405 moves along with the deformation of the force value sensor 403, the gap presses the limiting force value sensor 403 to the maximum and deforms, and the overload damage is pressed from the protecting force value sensor 403; the spacing between the limiting member 405 and the pull-limiting member 404 can be adjusted by rotating the pressing member.

It should be noted that, the pulling direction in this embodiment refers to a direction in which the force value sensor receives a horizontal pulling force, and the pressing direction refers to a direction in which the force value sensor receives a horizontal pressing force, and the direction of the pulling force is opposite to the direction of the pressed force.

One end of the pull rod 407 is an optical axis and is provided with an annular groove, the optical axis is connected with an unthreaded hole at the zb end of the adapter sleeve 406, a jackscrew is screwed into the unthreaded hole at the zb end of the adapter sleeve 406 and is jacked into the annular groove of the optical axis of the pull rod 407, the pull rod 407 and the adapter sleeve 406 can freely rotate, and the other end of the pull rod 407 is rigidly connected with the bracket 408; two opposite vertical surfaces of the bracket 408 are provided with open long grooves for placing the measuring compression roller 600.

Referring to fig. 2 and 3, the rotating arm 411 is further fixed on the bracket 408 by a rotating shaft 410, the rotating arm 411 can rotate relative to the rotating arm shaft 410, a bearing 412 is fixed on the rotating arm 411 by a bearing shaft 413, the bearing 412 is in contact with the upper top surface of the sample loading platform 500, the bearing 412 is equivalent to a contact roller, a limit plate 409 is further arranged on the bracket 408 to limit the rotating angle of the rotating arm 411, when the rotating arm 411 rotates to one end of the limit plate 409 to be in contact, the bracket 408 and the measuring pressure roller 600 are lifted, and the measuring pressure roller 600 is separated from the top surface of the sample loading platform 500; when the rotating arm 411 rotates to the other end of the limiting plate 409 to contact, the bracket 408 and the measuring press roller 600 are put down, and the measuring press roller 600 contacts with the top surface of the sample bearing platform 500 and can press the sample 512.

Referring to fig. 4-6, the sample holder includes a stop block 501, a right stop plate 502, a pull handle 503, a thumb screw 504, a sample pressure plate 505, a left stop plate 506, a sample securing strip 507, a pin 508, a hold down strip 509, a securing strip pressure plate 510, and a bottom plate 511.

Be fixed with 2 fixed strip clamp plates 510 that the interval of relative setting set for the distance on the bottom plate 511, be equipped with the draw-in groove on the fixed strip clamp plate 510, in the draw-in groove can freely be gone into to the fixed strip 507 of sample, easy dismounting can select different sample fixed strips according to the sample, has increased universality and the efficiency of software testing to the sample.

The bottom plate 511 is provided with at least 2 pins 508 for positioning the sample pressure plate 505; the bottom plate 511 is provided with at least 2 threaded holes for fixing the sample pressure plate 505; 2 handles 503 are fixed on the sample pressure plate 505, the handles 503 are convenient for taking and placing the sample pressure plate 505, and the sample pressure plate 505 is also provided with pin holes corresponding to the pins 508 of the bottom plate, so that the sample pressure plate 505 and the bottom plate 511 are positioned; the sample pressure plate 505 is also provided with a round hole corresponding to the threaded hole of the bottom plate 511, and the hand screw 504 passes through the round hole on the sample pressure plate 505 and is screwed into the threaded hole of the bottom plate 511 to fix the sample pressure plate 505 and the bottom plate 511.

Sample pressure plate 505 is equipped with 2 rectangle through-holes, two protruding platform looks adaptations that are equipped with sample fixed strip 507, and sample pressure plate 505 is the wedge structure with the cooperation part of sample fixed strip 507, and the sample centre gripping is firm to but tensioning sample, with sample test surface fish tail when preventing the clamping sample.

In the gap between the sample pressure plate 505 and the bottom plate 511, a bead 509 is placed for assisting in clamping the sample 512.

In addition, a right stop plate 502, a left stop plate 506 and a fixed strip pressing plate 510 are rigidly fixed on the bottom plate 511, 2 limit blocks 501 are respectively fixed on the right stop plate 502 and the left stop plate 506, and when the measuring rod assembly 400 moves to the position of the limit block 501, the limit block 501 blocks the bearing 412 of the measuring rod assembly 400 to stop advancing.

It should be noted that after the bearing 412 is stopped to stop moving forward, the measuring pressure roller will be lifted or dropped due to the continuous movement of the measuring rod assembly 400, at this time, the measuring rod assembly will apply a corresponding pulling force or pressing force to the force value sensor, and the pulling limiting member 404 and the pressing limiting member 405 of this embodiment can limit the maximum deformation amount of the force value sensor when the force value sensor receives the pulling force or pressing force; meanwhile, the overload force of the force value sensor is borne, so that the force value sensor is protected.

As an alternative embodiment, the base 102 is provided with an adjustment foot 101 at the bottom and a level bulb 103 at the top, and the device can be leveled by adjusting the foot 101 and observing the level bulb 103.

As another optional implementation, the base 102 is further fixed with a touch display screen 104 and a controller, and the touch display screen 104 is used for controlling devices and displaying data; the controller is electrically connected with the touch display screen 104, the force value sensor 403 and the motor 201, receives control information of the touch display screen 104, controls the motor 201 to move, collects and processes data of the force value sensor 403, and displays the data on the touch display screen 104.

The specific working principle of the adhesion testing device of the embodiment is as follows:

firstly, placing the sample fixing strip 507 in a clamping groove of a fixing strip pressing plate 510 on a bottom plate 511, then placing the sample 512 with the sticky surface facing upwards on the sample fixing strip 507, respectively tearing off a little of the cover liners on two sides of the sample 512, respectively pressing the sticky surfaces exposed on the two sides by using pressing strips 509, carefully removing the cover liners, horizontally pressing down by using a sample pressing plate 505, and fixing the bottom plate 511 and the sample pressing plate 505 by using hand-screwed screws 504 on two sides to finish sample clamping.

Clicking a 'test' key on the touch display screen 104, moving the measuring rod assembly 400 leftwards at a set moving speed as shown in fig. 1 (the measuring pressure roller 600 is on the bracket 408 and is higher than the top surface of the sample clamp 500), crossing over the sample, and reaching the position of the limit block 501 on the left stop plate 506, the bearing 412 is blocked by the limit block, the measuring rod assembly 400 continues moving leftwards, the rotating arm 411 rotates relative to the rotating arm shaft 410 until the rotating arm 411 contacts with the other side of the limit block 409, the bracket 408 descends, the measuring pressure roller 600 falls on the top surface of the sample bearing table 500, as shown in fig. 3, the measuring rod assembly 400 moves reversely at the test speed, when reaching the sample 512, the measuring pressure roller 600 contacts with the sample 512, the force value sensor 403 measures the adhesion value when the two contact, and finally reaches the position of the limit block 501 on the right stop plate 502, the bearing 412 is blocked by the limit block, the measuring rod assembly 400 continues moving rightwards, the rotary arm 411 rotates with respect to the rotary arm shaft 410 until the rotary arm 411 contacts the other side of the limit plate 409, the holder 408 is raised, the measuring pressure roller 600 is separated from the top surface of the sample carrier 500, and the apparatus is stopped as shown in fig. 1, completing the test.

Although the present invention has been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without inventive work are still within the scope of the present invention.

Claims

1. An adhesion force testing device, comprising: the device comprises a machine base, a sample bearing table and a measuring rod assembly are respectively arranged on the machine base; one end of the measuring rod assembly, which is close to the sample bearing table, is connected with the measuring compression roller, and the other end of the measuring rod assembly is connected with the transmission mechanism through a connecting piece;

2. The adhesion testing device of claim 1, wherein the pull-limiting member extends into the fixing frame, and the force sensor is pulled toward the limiting member to stop when the force sensor is subjected to a pulling force to a predetermined deformation amount.

3. The adhesion testing device of any one of claims 1-2, wherein the spacing between the pull stop and the force end of the force sensor is adjustable.

4. The adhesion testing apparatus of claim 1, wherein the measuring bar assembly further comprises: the pressing limiting piece is used for limiting the deformation quantity of the stressed end of the force value sensor in the pressure bearing direction; the compression direction is opposite to the tension direction;

5. The adhesion testing device of claim 4, wherein the force-bearing end of the force sensor is further connected with a pull rod, and the end of the pull rod connected with the force-bearing end of the force sensor is arranged in the adapter sleeve and is rotatably connected with the adapter sleeve; the other end of the pull rod is connected with a measuring press roller through a support.

6. The adhesion testing apparatus of claim 5, wherein the bracket is connected to the arm via a pivot, the arm being connected to the roller; and the support is also provided with a limiting plate for limiting the rotation angle of the rotating arm.

7. The adhesion test apparatus of any one of claims 4 to 6, wherein the spacing between the tension and compression limiters is adjustable.

8. The adhesion test apparatus of claim 1, wherein the sample holder comprises a base plate and a sample pressure plate disposed on the base plate; two opposite fixing strip pressing plates are arranged on the bottom plate along the moving direction of the measuring rod assembly, and the two fixing strip pressing plates are spaced by a set distance; the fixing strip pressing plate is provided with a clamping groove, and the sample fixing strip is clamped into the clamping groove; two raised platforms are arranged on the sample fixing strip; and through holes matched with the platforms are formed in the positions, corresponding to the platforms, of the pressing plates.

9. The adhesion test apparatus of claim 8, wherein the through hole has a wedge-shaped configuration.

10. The adhesion testing device of claim 1, wherein the base further comprises a touch display device.