CN210690233U

CN210690233U - Laboratory is with quick gauge length device of tensile test block of rubber

Info

Publication number: CN210690233U
Application number: CN201921709485.6U
Authority: CN
Inventors: 张薛; 臧亚南; 徐云慧; 丛后罗
Original assignee: Xuzhou College of Industrial Technology
Current assignee: Xuzhou College of Industrial Technology
Priority date: 2019-10-14
Filing date: 2019-10-14
Publication date: 2020-06-05
Anticipated expiration: 2029-10-14

Abstract

The utility model discloses a rubber tensile test piece rapid gauge length device for laboratory, which comprises a stainless steel fixed plate, wherein the bottom of the stainless steel fixed plate is provided with a fixed sucker; the sliding sheet bracket is arranged on the outer side of the stainless steel fixed plate; the sliding sheet is slidably arranged on the sliding sheet bracket; the positioning rubber sheet is placed in the stainless steel fixing plate; the special distance marking pen is arranged on the sliding sheet, is vertical to the stainless steel fixing plate and moves together with the sliding sheet. The utility model has the advantages of simple structure, strong practicability and convenient operation, and meets the marking requirements of the rubber tensile test piece.

Description

Laboratory is with quick gauge length device of tensile test block of rubber

Technical Field

The utility model relates to a rubber experimental apparatus specifically is a rubber tensile test block gauge length device.

Background

In the test for measuring the tensile property of vulcanized rubber or thermoplastic rubber, the tensile property test is carried out after the rubber test piece is cut into dumbbell-shaped pieces. Common dumbbell-shaped test specimens are different in size, and in terms of length, the type 1 test specimen is 115mm long, the type 1A test specimen is 100mm long, the type 2 test specimen is 75mm long, the type 3 test specimen is 50mm long, and the type 4 test specimen is 35mm long; the standard thickness of the test part is 2.0 + -0.2 mm for

types

1, 2, 3 and 1A, the standard thickness of the type 4 sample is 1.0 + -0.1 mm, if it is a non-standard sample, the thickness of the

type

1 and 1A is 3.0mm, the thickness of the

type

2 and 3 is 2.5mm, and the thickness of the type 4 is 2.0 mm; the test lengths (scribe mark distances) were 25.0. + -. 0.5mm for the type 1 specimen, 20.0. + -. 0.5mm for the type 1A and type 2 specimens, and 10.0. + -. 0.5mm for the type 3 and type 4 specimens, respectively. The different specifications of the samples cause the experimenters to have certain difficulty in scaling different samples. Meanwhile, a plurality of rubber test pieces are usually required for measuring the tensile property of a formula rubber material, and the respective gauge length of the plurality of tensile test pieces is complicated for experimenters. In order to meet the gauge length requirements of different rubber tensile test pieces, chinese patent CN 202710407U discloses an adjustable rubber tensile test piece gauge length ruler, which comprises a positioning ruler, a left scale and a right scale which can move left and right, a handle, a through hole and a nut. The advantage of this device is simple structure, operation convenient to use can mark the gauge length of four samples with a chi, and the shortcoming is to the sample of different specifications, needs the dismouting nut, finds the locating hole that corresponds, just can the gauge length. Chinese patent CN 204043992U discloses a multifunctional rubber tensile test piece gauge length device, which comprises a base, a baffle, two side plates, a scale, a slide block and a caliper. The two devices have the advantage that three to four test pieces of a complete tensile sample can be rapidly marked at one time through the mutual matching of the base, the baffle, the side plate and the scale. However, when samples with different sizes are marked, different calipers need to be adjusted back and forth, and when the thickness of the test piece is different, a base plate needs to be placed, which is troublesome.

Disclosure of Invention

In order to solve the problem, the utility model provides a laboratory is with quick gauge length device of rubber tensile test block inserts suitable gauge length special-purpose pen in different pen inserting holes on the gleitbretter, can conveniently carry out quick gauge length to a plurality of rubber tensile test blocks of different models.

The utility model is realized by the following technical proposal, a rubber tensile test piece rapid gauge length device for laboratory,

the bottom of the stainless steel fixing plate is provided with a fixing sucker, so that the scale distance device is stabilized on the test table top and cannot displace;

the sliding sheet bracket is arranged on the outer side of the stainless steel fixed plate;

the sliding sheet is slidably arranged on the sliding sheet bracket;

the positioning rubber sheet is placed on the inner side of the stainless steel fixing plate;

the special distance marking pen is arranged on the sliding sheet, is vertical to the stainless steel fixing plate and moves together with the sliding sheet.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: the stainless steel fixing plate is L-shaped, and a threaded hole for fixing the sliding sheet support is formed in the outer side wall of the stainless steel fixing plate.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: the sliding sheet bracket is a T-shaped structure consisting of a fixed end and a supporting frame;

the fixed end is provided with a fixed threaded hole, and the fixed threaded hole is connected with the threaded hole through a fixed screw, so that the fixed connection of the sliding sheet bracket and the stainless steel fixed plate is realized;

the support frame is provided with a sliding groove in the horizontal direction.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: one end of the sliding sheet can be slidably placed in the sliding groove, and a plurality of pen inserting holes which meet the specification and spacing of the rubber tensile property test samples are formed in the sliding sheet; the pen inserting hole is provided with internal threads.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: be equipped with many marked lines on the location sheet rubber, be convenient for further calibrate sample specification interval.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: the special gauge distance pen is provided with an external thread; when the special pen with the scale distance is placed in the pen inserting hole, the special pen with the scale distance and the pen inserting hole are in threaded connection.

As a preferred scheme of quick gauge length device of rubber tensile test piece in laboratory: the pen also comprises a rubber gasket sleeved on the special pen for the gauge length.

The utility model has the advantages of as follows:

1. the punched dumbbell-shaped tensile test pieces of different models can be directly placed according to the marking of the positioning rubber sheet 4, and the tensile test pieces can not slide on the surface of the positioning rubber sheet 4. Can place a plurality of tensile test pieces of same size in corresponding between the marking and arrange in proper order, experiment operating personnel holds up tensile test piece lightly, and quick gauge length can be carried out to another hand pushing gleitbretter 3.

2. The design of the fixed sucker 11 of the stainless steel fixing plate 1 can ensure that the whole gauge length device is stable on the test table top and can not displace. The fixed suction cup 11 can be replaced if damaged, and the use of the device is not influenced.

3. The slip sheet support and the slip sheet are made of polytetrafluoroethylene, and the polytetrafluoroethylene has self-lubricating property, excellent corrosion resistance, high and low temperature resistance and the like and is non-toxic. The sliding sheet 3 can not generate large resistance when pushed in the sliding sheet groove of the sliding sheet bracket 2, and lubricating oil is not needed. The positioning rubber sheet 4 and the rubber gasket 51 are made of silicon rubber, and the silicon rubber has excellent high and low temperature resistance, excellent solvent resistance, no toxicity, no smell and no odor.

4. Can conveniently and rapidly scale the rubber test pieces of different models. The special pen with the scale distance is placed into the corresponding pen inserting hole to be screwed tightly according to the model of the tensile test piece (a rubber gasket can be selected or not used according to requirements). The gauge length is needed to be carried out on the tensile test piece of which model, the dumbbell type test piece is only needed to be directly placed between two marked lines corresponding to the positioning rubber sheet 4, and then the gauge length is carried out. The position of the gauge length special pen 5 and the corresponding rubber gasket can be replaced or not replaced according to the requirement when the test piece of one model is replaced. The tensile test piece can be used for carrying out the sample scale distance of a plurality of test pieces, different specifications and different test piece thicknesses only at the corresponding marked line 41, and is very convenient and quick.

5. The pen core of the special pen with the gauge length is easy to replace, the pen core of a common dark color test piece can be a golden or silver pen core, the pen core of a common light color test piece can be a red or blue ball pen core, and the gauge length is very clear.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a top view of a stainless steel mounting plate;

FIG. 3 is a left side view of the stainless steel fixing plate;

FIG. 4 is a schematic view of the connection between the stainless steel fixing plate and the slide holder;

FIG. 5 is a left side view of the slide holder;

FIG. 6 is a schematic view of a slider structure;

FIG. 7 is a schematic cross-sectional view of a slider;

FIG. 8 is a top view of the positioning rubber sheet;

FIG. 9 is a front view of the gauge special pen;

in the figure: 1-stainless steel fixing plate, 11-fixing sucker, 12-threaded hole, 2-sliding sheet bracket, 21-fixing end, 22-supporting frame, 23-fixing threaded hole, 24-fixing screw, 25-sliding groove, 3-sliding sheet, 31-pen inserting hole, 32-internal thread, 4-positioning rubber sheet, 41-marking line, 5-gauge special pen, 51-rubber gasket and 52-external thread.

Detailed Description

The following is a further description with reference to the examples and the accompanying drawings.

Example 1

As shown in fig. 1-9, a rapid gauge device for laboratory rubber tensile test piece,

a stainless steel fixing plate 1, the bottom of which is provided with a fixed sucker 11;

the sliding sheet bracket 2 is arranged on the outer side of the stainless steel fixed plate 1;

the sliding sheet 3 is slidably arranged on the sliding sheet bracket 2;

the positioning rubber sheet 4 is placed on the inner side of the stainless steel fixing plate 1;

the special distance marking pen 5 is arranged on the sliding sheet 3, is vertical to the stainless steel fixing plate 1 and moves together with the sliding sheet 3.

As shown in fig. 2 and 3, the stainless steel fixing plate 1 is L-shaped, and a screw hole 12 for fixing the sliding sheet holder 2 is formed in an outer sidewall thereof.

As shown in fig. 4 and 5, the slide holder 2 is a T-shaped structure composed of a fixed end 21 and a support frame 22;

a fixed threaded hole 23 is formed in the fixed end 21, and the fixed threaded hole 23 is connected with the threaded hole 12 through a fixed screw 24, so that the sliding sheet bracket 2 is fixedly connected with the stainless steel fixed plate 1;

the support frame 22 is provided with a sliding groove 25 in the horizontal direction.

As shown in fig. 6 and 7, one end of the sliding piece 3 is slidably disposed in the sliding groove 25, and a plurality of pen insertion holes 31 meeting the specification and spacing of the rubber tensile property test samples are formed in the sliding piece 3; the pen insertion hole 31 is provided with internal threads 32.

And a plurality of marked lines 41 are arranged on the positioning rubber sheet 4, so that the specification interval of the sample can be further calibrated conveniently.

The special scale distance pen 5 is provided with an external thread 52; when the special distance-marking pen 5 is placed into the pen inserting hole 31, the two are connected by screw threads.

And the rubber gasket 51 is sleeved on the special scale distance pen 5.

Example 2

As shown in fig. 1-9, the utility model relates to a laboratory is with quick gauge length device of rubber tensile test piece, it is including last stainless steel fixed plate 1, gleitbretter support 2, gleitbretter 3, location sheet rubber 4 and the special pen 5 of gauge length.

The stainless steel fixing plate 1 is L-shaped, and the size of the stainless steel fixing plate is matched with that of the positioning rubber sheet 4. Fixed suckers 11 are arranged at the two ends of the L shape and the bottom of the corner of the stainless steel fixed plate 1, and threaded holes 12 with the same size as the sliding sheet support 2 are formed in the outer side of the fixed plate on one side of the stainless steel fixed plate 1. The stainless steel fixing plate 1 is placed on a test bed, the side faces of the stainless steel fixing plate 1 are perpendicular to the surface of the test bed, and the fixing sucker 11 is pressed down, so that the whole device can be firmly fixed on the test bed.

The whole material of gleitbretter support 2 be polytetrafluoroethylene, gleitbretter support 2 is a whole, its lower part is stiff end 21, stiff end 21 have with the fixed screw hole 23 that threaded hole 12 size is unanimous on the stainless steel fixed plate 1, can fasten gleitbretter support 2 on stainless steel fixed plate 1 through set screw 24. The fixed end 21 is provided with a supporting frame 22 with a vertical test bed surface, the upper end of the supporting frame is provided with a sliding groove 25 with the parallel test bed surface, the sliding sheet 3 can be placed in the sliding groove 25, and the sliding sheet 3 can be freely pushed back in the sliding groove in the horizontal direction.

The material of the sliding sheet 3 is polytetrafluoroethylene, three rows of pen inserting holes 31 penetrating through the sliding sheet 3 are formed in the sliding sheet as shown in fig. 6, internal threads 32 are formed in the pen inserting holes 31 and matched with external threads 52 of the special scale distance pen 5, and the initial height of the internal threads 32 corresponding to the 3-type and 4-type tensile tests is reduced by 1mm compared with the initial height of the rest internal threads. The distance-measuring special pen 5 is required to be respectively inserted into the left and right pen insertion holes 31 for the distance-measuring 1 tensile test piece, and the right sides of the two pen insertion holes 31 of the slide sheet 3 are marked with the applicable tensile test piece models. The inner diameter of each pen insertion hole 31 is 6-8 mm. Wherein the distance between the centers of the pen inserting holes 31 on the left and right sides of the 3-type and 4-type test sample pen inserting holes 31 is 10 mm. The distance between the centers of the pen insertion holes 31 on the left and right sides of the 1A-type and 2-type sample pen insertion holes 31 was 20 mm. The distance between the centers of the pen inserting holes 31 on the left side and the right side of the 1-type sample pen inserting hole 31 is 25mm, and the distances correspond to the test lengths of different samples respectively.

The positioning rubber sheet 4 can be directly placed on the inner side of the L-shaped stainless steel fixing plate 1, the upper surface and the lower surface of the positioning rubber sheet 4 are both provided with anti-skidding designs, and the positioning rubber sheet is made of silicon rubber. The width of the positioning rubber sheet 4 is consistent with the length of the type 1 sample, namely 115mm, and 4 different marked lines 41 are drawn on the upper surface of the positioning rubber sheet and are respectively matched with the lengths of the type 1A sample, the type 2 sample, the type 3 sample and the type 4 sample. A sample corresponds two marked lines, and these two marked lines are axisymmetric according to the central line of location sheet rubber, and for the convenience of placing the sample, the other tensile test piece specification that has marked of marked line, can place a plurality of tensile test pieces in proper order between its corresponding marked line according to the sample specification. Under the dual function of the anti-skid design of the lower surfaces of the L-shaped stainless steel fixing plate 1 and the positioning rubber sheet 4, the positioning rubber sheet 4 cannot move on the surface of the test bed during the gauge length process. Tensile test pieces with different specifications are placed at the marked lines corresponding to the positioning rubber pieces 4, and the tensile test pieces are held by hands lightly, so that the test pieces cannot move when the distance is marked.

The pen holder of the special distance-marking pen 5 is sleeved with a detachable or replaceable rubber gasket 51, the rubber gasket is made of silicon rubber, and the thickness of the rubber gasket 51 is different according to the different thickness of the tensile test piece. If 1, 1A, 2 and 4 type standard tensile test samples are measured, two special gauge length pens 5 can be directly fastened in corresponding pen inserting holes in the sliding sheet 3 without adding rubber gaskets 51, and if 3 type standard tensile test samples and 1, 1A and 4 type non-standard tensile test samples are measured, gaskets 51 with the thickness of 1mm can be sleeved in the special gauge length pens 5. If the type 2 and type 3 non-standard tensile test specimens are used, a gasket 51 of 0.5mm and 1.5mm thickness is inserted into the gauge length special pen 5. In order to quickly select the rubber gasket 51, the rubber gasket 51 may be different colors corresponding to the thicknesses of the rubber tensile test pieces of different specifications. The gauge length special pen 5 is also provided with an external thread 52 matched with the internal thread 3 of the slide sheet 3 as shown in figure 9. The special pen 5 for the scale distance is a press type pen, and the pen core can be a blue or red ball-point pen core or a golden or silver pen core for leather and rubber according to different colors and materials of required scale distance samples. During the gauge length, according to the requirement of the rubber tensile test piece model, the special gauge length pen 5 is simultaneously inserted into the pen inserting holes 31 on the left side and the right side of the rubber tensile test piece, and the gauge length can be carried out on a plurality of rubber tensile test pieces by slightly pushing the sliding sheet 3.

The tensile test pieces produced in the above are cut into tensile test pieces, and are common knowledge of those skilled in the art.

Claims

1. The utility model provides a laboratory is with quick gauge length device of tensile test block of rubber which characterized in that:

the bottom of the stainless steel fixing plate (1) is provided with a fixing sucker (11);

the sliding sheet bracket (2) is arranged on the outer side of the stainless steel fixing plate (1);

the sliding sheet (3) is slidably arranged on the sliding sheet bracket (2);

the positioning rubber sheet (4) is placed on the inner side of the stainless steel fixing plate (1);

the special distance marking pen (5) is arranged on the sliding sheet (3), is vertical to the stainless steel fixing plate (1) and moves together with the sliding sheet (3).

2. The device for rapidly marking the distance between the rubber tensile test pieces for the laboratory according to claim 1, wherein: the stainless steel fixing plate (1) is L-shaped, and a threaded hole (12) for fixing the sliding sheet support (2) is formed in the outer side wall of the stainless steel fixing plate.

3. The device for rapidly marking the distance between the rubber tensile test pieces for the laboratory according to claim 2, wherein: the slide sheet bracket (2) is of a T-shaped structure consisting of a fixed end (21) and a support frame (22);

a fixed threaded hole (23) is formed in the fixed end (21), and the fixed threaded hole (23) is connected with the threaded hole (12) through a fixed screw (24), so that the fixed connection between the sliding sheet bracket (2) and the stainless steel fixing plate (1) is realized;

the supporting frame (22) is provided with a sliding groove (25) in the horizontal direction.

4. The device for rapidly marking the distance between the rubber tensile test pieces for the laboratory according to claim 3, wherein: one end of the sliding sheet (3) can be slidably placed in the sliding groove (25), and a plurality of pen inserting holes (31) which meet the specification and spacing of rubber tensile property test samples are formed in the sliding sheet (3); the pen inserting hole (31) is provided with internal threads (32).

5. The device for rapidly marking the distance between the rubber tensile test pieces for the laboratory according to claim 3, wherein: and a plurality of marked lines (41) are arranged on the positioning rubber sheet (4), so that the specification interval of the sample can be further calibrated conveniently.

6. The device for rapidly marking the distance between the rubber tensile test pieces for the laboratory according to claim 4, wherein: the special scale distance pen (5) is provided with an external thread (52); when the special distance marking pen (5) is placed into the pen inserting hole (31), the two are connected by screw threads.

7. The device of claim 6, wherein the rubber tensile test piece fast gauge length device for laboratory is characterized in that: the pen also comprises a rubber gasket (51) sleeved on the special scale distance pen (5).