CN218865532U - Compression bending test vulcanization sample sampler - Google Patents

Abstract

The application discloses compression bending test vulcanizes sample sampler belongs to vulcanite test technical field. The device comprises an upper pressure plate, a lower supporting plate and a reset spring, wherein reset spring guide posts are arranged on two sides of the upper pressure plate and the lower supporting plate, the reset spring is clamped by the reset spring guide posts to vertically connect the upper pressure plate and the lower supporting plate, a supporting table for fixing a mold and a lower limiting baffle are arranged on the upper portion of the lower supporting plate, and a plurality of sampling pins are arranged on the lower portion of the upper pressure plate; after sampling begins, the upper pressing plate moves downwards to drive the sampling pin to eject out a sample in the cavity of the mold. This application can take out the rubber sample in a plurality of die cavitys simultaneously, guarantees the integrality of rubber sample, shortens whole sample time, reduces the time that the mould exposes outside the vulcanizer, guarantees the mould and preheats the temperature, improves work efficiency, guarantees the experiment precision.

Description

Compression bending test vulcanizes sample sampler

The technical field is as follows:

the application belongs to the technical field of vulcanized rubber testing, and particularly relates to a compression bending test vulcanization sample sampler.

Background art:

the heat generation of rubber under dynamic alternating load is always an index of interest for researchers. In practical applications, the internal heating of various tires and conveyor belts in high-speed running, the viscoelastic damping effect of vibration-damping and sound-insulating materials and structures thereof relate to the analysis of energy loss caused by the hysteresis effect of the materials, wherein a compression bending test can test the heating condition of rubber under dynamic alternating load, which is a common rubber performance test.

In the test determination of the compression bending test of the vulcanized rubber, the rubber sample for testing the compression bending test can be prepared by a mould pressing method or a cutting knife method, the size of the prepared rubber sample is usually 17.8 +/-0.15 mm in diameter and 25 +/-0.25 mm in height, and because the thickness and the diameter of the test sample are not large, the contact area of the sample and the side wall of a mould is overlarge, and the rubber sample is difficult to smoothly take out from a vulcanization mould cavity after the vulcanization is finished. In order to solve the problem of sampling test samples, the industry generally uses the following two methods for sampling: chemical release agent and manual release.

The chemical release agent is used, and before the rubber compound is placed into the die cavity, the chemical release agent is sprayed on the inner wall of the die to play a role in isolating rubber from adhering to the inner wall. When the mold is manually demolded, two persons usually cooperate to knock and pry the sample by using tools such as a hammer, a screwdriver and the like, the sample and the mold are easily damaged by violence in a prying mode, and potential safety hazards also exist. Meanwhile, the mold is provided with a plurality of mold cavities, and the samples are taken out in sequence, so that the time of the mold exposed outside the vulcanizing machine is too long, the temperature fluctuation is large, and errors are generated in the subsequent sample preparation

The utility model has the following contents:

in order to solve the technical problem, the adopted technical scheme is as follows:

the application provides a compression bending test vulcanization sample sampler, which comprises an upper pressure plate 1, a lower supporting plate 2 and a return spring 3; the lower surface of the upper pressure plate 1 and the left and right sides of the upper surface of the lower supporting plate 2 are respectively provided with a reset spring guide post 4 which is corresponding to the upper and lower positions in an outward extending manner, the reset spring guide posts 4 are clamped by the reset springs 3 and are connected up and down, the reset spring guide posts 4 on the left and right sides of the upper surface of the lower supporting plate 2 are respectively inserted and connected with the lower end of the reset spring 3, and the upper end of the reset spring 3 is respectively inserted and connected with the reset spring guide posts 4 on the left and right sides of the lower surface of the upper pressure plate 1; the sampling pins 6 are arranged in the center of the lower surface of the upper pressure plate 1 in an array mode, and the left side and the right side of the lower surface of the upper pressure plate 1 are vertically provided with upper limiting baffle plates 5; a support table 7 is arranged on the upper surface of the lower support plate 2, and a lower limit baffle 8 is vertically arranged at the four-angle position of the upper surface of the lower support plate 2; a mold 9 is placed above the support table 7.

Preferably, the upper limit baffle 5 and the lower limit baffle 8 are positioned corresponding to each other, and the height of the upper limit baffle 5 is the same as that of the lower limit baffle 8, and the upper limit baffle 5 can be just inserted between the neutral positions of the lower limit baffle 8.

Preferably, the supporting platform 7 is arranged around the left, rear and right edges of the upper surface of the lower supporting plate 2, and the supporting platform 7 is located at the inner periphery of the lower limit baffle 8.

Preferably, the mold 9 is a rectangular parallelepiped, and can be placed above the support table 7 just fitting the inner wall of the lower limit baffle 8.

Preferably, the mold 9 is provided with cavities 10 in an array, the cavities 10 are opened up and down, and the positions of the cavities 10 and the positions of the sampling pins 6 correspond to each other.

Preferably, after the upper pressure plate 1 and the lower supporting plate 2 are connected and assembled through the return spring 3 and before sampling begins, the dislocation distance between the upper limiting baffle 5 and the lower limiting baffle 8 is the maximum compression distance between the upper pressure plate 1 and the lower supporting plate 2, and the maximum compression distance is greater than the thickness of the mold 9.

Preferably, the sampling pin 6 is shaped as a truncated cone with a slope on its side, the maximum diameter of which is smaller than the diameter of the cavity 10.

The application provides a compression bending test vulcanizes sample sampler. The method has the following beneficial effects:

this application makes top board 1 downstream through pressing top board 1, drives a plurality of sample round pins 6 ejecting with the rubber sample in the die cavity 10 that corresponds on the mould 9, takes out the rubber sample in a plurality of die cavities simultaneously, and then shortens holistic sample time, reduces the time that the mould exposes outside the vulcanizer to guarantee the preheating temperature of mould, improved work efficiency, guaranteed the experiment precision.

Thereby limit baffle 5 corresponds each other with the position of lower limit baffle 8 on this application, and go up limit baffle 5 and lower limit baffle 8 highly the same, it just in time inserts between the neutral gear of lower limit baffle 8 to go up limit baffle 5, thereby make up the effect that plays the support that the laminating can splice completely with lower limit baffle 8 on limit baffle 5, thereby the firm degree of sampler has been increased, thereby avoided in the sampling process because of the sampler structural gap that exists can't support and cause the sampler to be pressed and ruined.

This application has set up limit baffle 5 and lower limit baffle 8, and the shape of mould 9 is the cuboid, and this cuboid can just in time laminate down limit baffle 8's inner wall and place in a supporting bench 7 top, and lower limit baffle 8 blocks mould 9, has guaranteed the tram 9 correct position in the sampler, thereby prevent that mould 9 from leading to the fact personnel to hurt from the roll-off at the in-process of carrying the sampler, has improved the security.

This application is connected upper plate 1 and lower fagging 2 through reset spring 3 and is assembled into behind the sampler, before the sample begins, go up the dislocation distance between spacing baffle 5 and the lower spacing baffle 8 and be the biggest compression distance between upper plate 1 and the lower fagging 2, and this biggest compression distance is greater than the thickness of mould 9, protection mould 9 does not receive the extrusion, thereby avoid appearing upper plate 1 and just contacted mould 9 and carry out the condition of extruded damage mould 9 to mould 9 before the sampler is compressed completely.

The utility model provides a central point of top board 1 lower surface puts the array and is provided with sample round pin 6, and sample round pin 6's shape is the round platform that the side has the slope, and the maximum diameter of this round platform is less than the diameter of die cavity 10, thereby avoids appearing damaging the condition of the rubber sample in mould 9 and the die cavity 10 in the inner wall direct contact friction of sample round pin 6 and die cavity 10 in the sample process, has protected mould 9 and rubber sample.

Description of the drawings:

FIG. 1 is a schematic view of an assembled structure of a vulcanized sample sampler in a compression bending test;

FIG. 2 is a schematic view of the upper platen;

FIG. 3 is a schematic view of a lower stay plate structure;

FIG. 4 is a schematic view of a sampling structure of a vulcanized sample sampler for a compression bending test;

in the figure: 1 is the top board, 2 is the fagging down, 3 is reset spring, 4 is the reset spring guide pillar, 5 is last spacing baffle, 6 is the sample round pin, 7 is the brace table, 8 is lower spacing baffle, 9 is the mould, 10 is the die cavity.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

Technical features mentioned in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

In the description of the present application, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "peripheral," "inner," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "fixed," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 4, this application is a compression bending test vulcanizes sample sampler, and this sampler includes top board 1 and lower supporting plate 2, and top board 1 lower surface and the left and right sides of lower supporting plate 2 outwards extend respectively and are provided with reset spring guide pillar 4 that upper and lower position corresponds, and the reset spring guide pillar 4 of the upper surface left and right sides of lower supporting plate 2 inserts with reset spring 3's lower extreme respectively and is connected, and reset spring 3's upper end inserts with the reset spring guide pillar 4 of the upper surface left and right sides of top board 1 lower surface respectively and is connected. After sampling is finished, the upper pressure plate 1 of the sampler moves upwards under the action of the return spring 3 to finish the return of the upper pressure plate 1, so that the mold 9 and the rubber sample can be taken out conveniently.

The left and right sides of the lower surface of the upper pressing plate 1 is vertically provided with an upper limit baffle 5, the four-angle position of the upper surface of the lower supporting plate 2 is vertically provided with a lower limit baffle, the upper limit baffle 5 and the lower limit baffle 8 correspond to each other in position, the upper limit baffle 5 and the lower limit baffle 8 are same in height, the upper limit baffle 5 can be just inserted into the space between the lower limit baffle 8 and the neutral gear, the upper limit baffle 5 and the lower limit baffle 8 can be completely spliced and attached to achieve a better supporting effect, the firmness of the sampler is increased, and the situation that the sampler is damaged by pressing due to the fact that a gap cannot be formed in the structure of the sampler in the sampling process is avoided. And, after upper pressure plate 1 and lower backup pad 2 are connected through reset spring 3 and are assembled into the sampler, the dislocation distance between upper limit baffle 5 and lower limit baffle 8 is the maximum compression distance between upper pressure plate 1 and lower backup pad 2, and this maximum compression distance is greater than the thickness of mould 9, and protection mould 9 does not receive the extrusion, thereby avoids appearing upper pressure plate 1 and just contacting mould 9 and carrying out the condition of extrudeing to mould 9 before the sampler is compressed completely and damaging the condition of mould 9.

The upper surface of the lower supporting plate 2 is provided with a supporting table 7, the supporting table 7 surrounds the edges of the left side, the rear side and the right side of the upper surface of the lower supporting plate 2, the supporting table is not arranged on the front side of the upper surface of the lower supporting plate 2, after sampling is finished, the upper pressure plate 1 is reset due to upward movement of the reset spring 3, and a worker can take out a rubber sample from the front side conveniently. Supporting bench 7 is located the interior of lower limit baffle 8 and encloses, and mould 9 has been placed to supporting bench 7 top, and mould 9's shape is the cuboid, and limit baffle 8's inner wall is placed in supporting bench 7's top under can just in time laminating, and lower limit baffle 8 blocks mould 9, has guaranteed the tram of mould 9 in the sampler, thereby prevents to cause personnel's injury at the in-process mould 9 roll-off of transport sampler, has improved the security.

The array is provided with sampling pin 6 on 1 lower surface of top board, the array is provided with die cavity 10 on mould 9, the die cavity 10 is opened from top to bottom, and the position of die cavity 10 corresponds each other with sampling pin 6's position, after the sample begins, top board 1 is pressed the downstream, drive the die cavity 10 that corresponds on a plurality of sampling pins 6 insert mould 9, it is ejecting with the rubber sample in die cavity 10, can take out the rubber sample in a plurality of die cavities simultaneously, and then shorten holistic sample time, reduce the time that the mould exposes outside the vulcanizer, thereby guarantee the preheating temperature of mould, the work efficiency is improved, the experiment precision has been guaranteed. The shape of sampling pin 6 is the round platform that the side has the slope, and the maximum diameter of this round platform is less than the diameter of die cavity 10, thereby avoids appearing in the sample in-process sampling pin 6 and the condition of the rubber sample in die cavity 10 of damage mould 9 and die cavity 10's inner wall direct contact friction, has protected mould 9 and rubber sample.

This application simple structure, the equipment mode is convenient, only needs a staff to operate and use, can shorten holistic sample time under the prerequisite of the integrality of guaranteeing the rubber sample, shortens the time that the mould exposes outside the vulcanizer simultaneously, guarantees the mould preheating temperature, improves work efficiency, guarantees the experiment precision, practices thrift manpower and time cost.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions in the embodiments of the present application.

Claims (8)

1. A compression bending test vulcanization sample sampler comprises an upper pressure plate (1), a lower supporting plate (2) and a reset spring (3), and is characterized in that the left side and the right side of the lower surface of the upper pressure plate (1) and the upper surface of the lower supporting plate (2) respectively extend outwards to form reset spring guide posts (4) corresponding to each other in the vertical position, and the upper pressure plate (1) and the lower supporting plate (2) are clamped by the reset spring (3) to be connected with each other vertically; the sampling pins (6) are arranged in the center of the lower surface of the upper pressure plate (1) in an array manner, and the upper limit baffles (5) are vertically arranged on the left side and the right side of the lower surface of the upper pressure plate (1); a support table (7) is arranged on the upper surface of the lower support plate (2), and lower limiting baffles (8) are vertically arranged at four corners of the upper surface of the lower support plate (2); a mould (9) is arranged above the supporting table (7).

2. The compression bending test vulcanization sample sampler according to claim 1, wherein the return spring guide posts (4) on the left and right sides of the upper surface of the lower stay plate (2) are respectively inserted into and connected with the lower ends of the return springs (3), and the upper ends of the return springs (3) are respectively inserted into and connected with the return spring guide posts (4) on the left and right sides of the lower surface of the upper stay plate (1).

3. A compression bend test sulphide sample sampler as claimed in claim 2 in which the upper limit stop (5) and the lower limit stop (8) are positioned relative to each other and the upper limit stop (5) and the lower limit stop (8) are of the same height, the upper limit stop (5) being insertable between the recesses of the lower limit stop (8).

4. A compression bend test vulcanization sample sampler as claimed in claim 3, wherein the support base (7) is provided around the left, rear and right sides of the upper surface of the lower supporting plate (2), and the support base (7) is located on the inner periphery of the lower limit baffle (8).

5. A compression bend test vulcanising sample sampler as claimed in claim 4 wherein the mould (9) is rectangular in shape and the side surfaces of the mould (9) may be placed over the support (7) just abutting the inner walls of the lower retainer (8).

6. A compression bend test vulcanising sample sampler as claimed in claim 5 wherein the mould (9) is further provided with an array of mould cavities (10), the mould cavities (10) being open up and down and the mould cavities (10) and the sampling pins (6) being located relative to each other.

7. A compression bending test vulcanization sample sampler according to claim 6, wherein after the upper platen (1) and the lower supporting plate (2) are connected by the return spring (3), the offset distance between the upper limit baffle (5) and the lower limit baffle (8) is the maximum compression distance between the upper platen (1) and the lower supporting plate (2), and the maximum compression distance is greater than the thickness of the mold (9).

8. A compression bend test vulcanising sample sampler as claimed in any one of claims 6 and 7 wherein the sampling pin (6) is in the form of a laterally tapered circular truncated cone having a maximum diameter smaller than the diameter of the mould cavity (10).

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