1. A tensile test device for rubber products is characterized by comprising:

the motor comprises a base, a first motor fixed on the base, a lower plate fixed on an output shaft of the first motor and a plurality of vertical rods with one ends fixed on the upper surface of the lower plate, wherein the vertical rods are distributed on the periphery of the first motor in an annular array manner, and through holes penetrating through the upper end surface of the vertical rods are formed in the vertical rods;

the device comprises a support, a first air cylinder and an upper plate, wherein one end of the support is fixed on a base, the first air cylinder is fixed at the top of the support, the upper plate is rotatably connected with an output shaft of the first air cylinder, the upper plate is positioned above the lower plate, the upper plate is provided with through holes which are in one-to-one correspondence with through holes, and the through holes are positioned right above the corresponding through holes;

one end of each limiting rod is fixed on the lower plate, the number of the limiting rods is at least two, and the limiting rods penetrate through the upper plate;

the winding wheel is fixed on an output shaft of the fourth motor and used for releasing or winding a sample, and when one through hole moves to the position below the winding wheel, the sample is guided into the through hole under the action of external force;

the bottom of the sample is fixed by the first fixing part when the bottom of the sample moves to the bottom of the through hole, and the sample is fixed in the through hole and cut off by the second fixing part.

2. The tension testing device for rubber products as claimed in claim 1, wherein said first fixing portion comprises a fixing member provided on said vertical rod and a driving member provided on said lower plate, said driving member causing said fixing member corresponding to said through hole to fix said bottom of said sample when said bottom of said sample moves to said bottom of said through hole.

3. The tension testing apparatus for rubber products as claimed in claim 2, wherein said fixing member comprises:

one end of the linkage block is provided with a first rectangular hole;

the screw rod and be fixed in the rectangle piece at screw rod top, the side surface of pole setting is equipped with the screw with the perforation intercommunication, screw rod and screw threaded connection, the rectangle piece just is located first rectangle downthehole with first rectangle hole phase-match.

4. A tension testing apparatus for rubber products as claimed in claim 3, wherein said driving assembly comprises:

the support plate is fixed on the output shaft of the second motor, and the third motor is fixed on the support plate;

the linkage device comprises a plurality of end surface holes arranged on the outer end surface of a linkage block, linkage rods connected with the end surface holes in a sliding manner and electromagnets fixed in the end surface holes;

the linkage plate is provided with a second rectangular hole, one side of the linkage plate is fixedly connected with the end part of the linkage rod, which is positioned outside the end surface hole, the second rectangular hole is matched with the part of the third motor output shaft, which is positioned outside, and the central axis of the second rectangular hole and the central axis of the third motor output shaft are positioned on the same straight line;

the spring is sleeved on the linkage rod, one end of the spring is fixed on the outer end face of the linkage block, and the other end of the spring is fixed on the linkage plate;

after the output shaft of the third motor is inserted into the second rectangular hole, at the moment, the third motor can drive the linkage block to rotate.

5. A tension test device for rubber products as in claims 3 to 4, wherein one end of the supporting rod fixed on the outer side surface of the linkage block is a T-shaped end and is rotatably connected with a rotating groove arranged on the side surface of the vertical rod.

6. The tension test apparatus for rubber products as set forth in claim 1, wherein said second fixing portion includes:

the second cylinder is fixed at the bottom of the cavity, and the third cylinder is fixed on the side wall of the cavity;

the bottom end of the pressure rod is connected with the cavity in a sliding mode, the pressure rod is provided with a knife hole, a notch is formed above the front end of the pressure rod, and the output shaft of the third air cylinder is fixed to the bottom end of the pressure rod;

the front end is located the cutter in the knife hole, the output shaft of second cylinder is fixed in the rear end of cutter.

Background

The rubber products refer to activities for producing various rubber products by using natural and synthetic rubbers as raw materials, and in order to solve whether the tensile force of the rubber products meets requirements, a certain amount of samples are generally required to be extracted for a tensile test, for example, insulating layers wrapping copper wires and the like are required to be subjected to the tensile test.

The applicant found that: at present, when a tensile test is carried out, the sample is required to be manually clamped, only one sample can be tested at each time, and the efficiency is low.

Disclosure of Invention

In view of this, an object of one or more embodiments of the present disclosure is to provide a tensile testing apparatus for rubber products, so as to solve the technical problems in the prior art that when a tensile test is performed, a sample needs to be manually clamped, and only one sample can be tested at a time, which is inefficient.

In view of the above objects, one or more embodiments of the present specification provide a tensile testing apparatus for a rubber product, including:

the motor comprises a base, a first motor fixed on the base, a lower plate fixed on an output shaft of the first motor and a plurality of vertical rods with one ends fixed on the upper surface of the lower plate, wherein the vertical rods are distributed on the periphery of the first motor in an annular array manner, and through holes penetrating through the upper end surface of the vertical rods are formed in the vertical rods;

the device comprises a support, a first air cylinder and an upper plate, wherein one end of the support is fixed on a base, the first air cylinder is fixed at the top of the support, the upper plate is rotatably connected with an output shaft of the first air cylinder, the upper plate is positioned above the lower plate, the upper plate is provided with through holes which are in one-to-one correspondence with through holes, and the through holes are positioned right above the corresponding through holes;

one end of each limiting rod is fixed on the lower plate, the number of the limiting rods is at least two, and the limiting rods penetrate through the upper plate;

the winding wheel is fixed on an output shaft of the fourth motor and used for releasing or winding a sample, and when one through hole moves to the position below the winding wheel, the sample is guided into the through hole under the action of external force;

the bottom of the sample is fixed by the first fixing part when the bottom of the sample moves to the bottom of the through hole, and the sample is fixed in the through hole and cut off by the second fixing part.

Furthermore, the first fixing portion comprises a fixing component arranged on the vertical rod and a driving component arranged on the lower plate, and when the bottom of the sample moves to the bottom of the perforation, the driving component enables the fixing component corresponding to the perforation to fix the bottom of the sample.

Further, the fixing assembly includes:

one end of the linkage block is provided with a first rectangular hole;

the screw rod and be fixed in the rectangle piece at screw rod top, the side surface of pole setting is equipped with the screw with the perforation intercommunication, screw rod and screw threaded connection, the rectangle piece just is located first rectangle downthehole with first rectangle hole phase-match.

Further, the driving assembly includes:

the support plate is fixed on the output shaft of the second motor, and the third motor is fixed on the support plate;

the linkage device comprises a plurality of end surface holes arranged on the outer end surface of a linkage block, linkage rods connected with the end surface holes in a sliding manner and electromagnets fixed in the end surface holes;

the linkage plate is provided with a second rectangular hole, one side of the linkage plate is fixedly connected with the end part of the linkage rod, which is positioned outside the end surface hole, the second rectangular hole is matched with the part of the third motor output shaft, which is positioned outside, and the central axis of the second rectangular hole and the central axis of the third motor output shaft are positioned on the same straight line;

the spring is sleeved on the linkage rod, one end of the spring is fixed on the outer end face of the linkage block, and the other end of the spring is fixed on the linkage plate;

after the output shaft of the third motor is inserted into the second rectangular hole, at the moment, the third motor can drive the linkage block to rotate.

Furthermore, one end of the supporting rod fixed on the outer side surface of the linkage block is a T-shaped end, and the end is rotatably connected with a rotating groove arranged on the side surface of the vertical rod.

Further, the second fixing portion includes:

the second cylinder is fixed at the bottom of the cavity, and the third cylinder is fixed on the side wall of the cavity;

the bottom end of the pressure rod is connected with the cavity in a sliding mode, the pressure rod is provided with a knife hole, a notch is formed above the front end of the pressure rod, and the output shaft of the third air cylinder is fixed to the bottom end of the pressure rod;

the front end is located the cutter in the knife hole, the output shaft of second cylinder is fixed in the rear end of cutter.

The invention has the beneficial effects that: when the tensile test device for the rubber product is used for an experiment, a sample is firstly wound on a winding wheel, then a first motor rotates to drive an upper plate and a lower plate to rotate, the sample is guided into a through hole under the action of external force when one through hole moves to the position below the winding wheel, the bottom of the sample is fixed by a first fixing part when the bottom of the sample moves to the bottom of a through hole, the sample is fixed in the through hole by a second fixing part and cut off, and after the sample on the winding wheel is completely released, the first air cylinder gradually drives the upper plate to move upwards to complete the experiment.

Drawings

In order to more clearly illustrate one or more embodiments or prior art solutions of the present specification, the drawings that are needed in the description of the embodiments or prior art will be briefly described below, and it is obvious that the drawings in the following description are only one or more embodiments of the present specification, and that other drawings may be obtained by those skilled in the art without inventive effort from these drawings.

FIG. 1 is a front view of an embodiment of the present invention;

FIG. 2 is a first schematic diagram of a first fixing portion according to an embodiment of the present invention;

FIG. 3 is a second schematic view of a first fixing portion according to an embodiment of the present invention;

FIG. 4 is a first schematic diagram of a second fixing portion according to an embodiment of the present invention;

fig. 5 is a second schematic diagram of the second fixing portion in the embodiment of the invention.

Wherein, 1, a base; 2. a lower plate; 3. a first motor; 4. a support; 5. a first cylinder; 6. an upper plate; 7. a winding wheel; 8. erecting a rod; 9. a limiting rod; 10. perforating; 11. a through hole; 12. a second motor; 13. a supporting plate; 14. a third motor; 15. a linkage block; 16. a first rectangular hole; 17. a strut; 18. a rotating groove; 19. a linkage plate; 20. a second rectangular hole; 21. a screw; 22. a rectangular block; 23. an electromagnet; 24. an end face hole; 25. a linkage rod; 26. a spring; 27. a second cylinder; 28. a third cylinder; 29. a pressure lever; 30. a cutter; 31. a cavity; 32. a knife hole; 33. and (4) a notch.

Detailed Description

To make the objects, technical solutions and advantages of the present disclosure more apparent, the present disclosure is further described in detail below with reference to specific embodiments.

It is to be noted that unless otherwise defined, technical or scientific terms used in one or more embodiments of the present specification should have the ordinary meaning as understood by those of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in one or more embodiments of the specification is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

In view of the above object, a first aspect of the present invention provides an embodiment of a tensile testing apparatus for rubber products, as shown in fig. 1, comprising:

the motor comprises a base 1, a first motor 3 fixed on the base 1, a lower plate 2 fixed on an output shaft of the first motor 3 and a plurality of upright posts 8 with one ends fixed on the upper surface of the lower plate 2, wherein the upright posts 8 are distributed on the periphery of the first motor 3 in an annular array, and through holes 10 penetrating through the upper end surface of the upright posts 8 are arranged in the upright posts 8;

the device comprises a support 4, a first air cylinder 5 and an upper plate 6, wherein one end of the support 4 is fixed on a base 1, the first air cylinder 5 is fixed on the top of the support 4, the upper surface of the upper plate 6 is rotatably connected with an output shaft of the first air cylinder 5, the upper plate 6 is positioned above a lower plate 2, the upper plate 6 is provided with through holes 11 which are in one-to-one correspondence with through holes 10, and the through holes 11 are positioned right above the corresponding through holes 10;

one end of each limiting rod 9 is fixed on the lower plate 2, at least two limiting rods 9 are arranged, and the limiting rods 9 penetrate through the upper plate 6;

the winding wheel 7 is fixed on an output shaft of the fourth motor, the winding wheel 7 is used for releasing or winding a sample, and when one through hole 11 moves to the position below the winding wheel 7, the sample is guided into the through hole 11 under the action of external force;

the first fixing part fixes the bottom of the sample when the bottom of the sample moves to the bottom of the through hole 10, and the second fixing part fixes the sample in the through hole 11 and cuts off the sample.

In this embodiment, during the experiment, at first convolute the sample on the winding wheel 7, then first motor 3 rotates, drives upper plate 6 and hypoplastron 2 and rotates, when one of them through-hole 11 moved to the below of winding wheel 7, under the exogenic action, with sample guide to in through-hole 11 to when the bottom of sample moved to perforation 10 bottom, the first fixed portion of institute fixed the bottom of sample, the second fixed portion fixes the sample in through-hole 11, and cuts off, and after the sample on winding wheel 7 was all released, first cylinder 5 drove upper plate 6 rebound gradually, accomplished the experiment, through this device, operating personnel only need guide the sample get into through-hole 11 can, the fixing process is automatic by the device, still can once test a plurality of samples simultaneously, has improved efficiency of software testing.

In one embodiment, the first fixing portion includes a fixing component disposed on the vertical rod 8 and a driving component disposed on the lower plate 2, and when the bottom of the sample moves to the bottom of the through hole 10, the driving component makes the fixing component corresponding to the through hole 10 fix the bottom of the sample.

Here, as shown in fig. 2 and 3, a structure of a fixing assembly is introduced, the fixing assembly including:

a linkage block 15 with a first rectangular hole 16 at one end;

screw rod 21 and be fixed in the rectangular block 22 at screw rod 21 top, the side surface of pole setting 8 is equipped with the screw that communicates with perforation 10, screw rod 21 and screw threaded connection, rectangular block 22 and first rectangular hole 16 phase-match, and be located first rectangular hole 16.

Here, when the bottom end of the sample moves to the bottom of the perforation 10, the linkage block 15 is rotated by an external force, thereby rotating the screw 21, so that the screw 21 gradually moves into the perforation 10, and finally the bottom end of the sample is fixed.

As an embodiment, as shown in fig. 2 and 3, the driving assembly includes:

the second motor 12 fixed on the upper surface of the lower plate 2, a supporting plate 13 fixed on the output shaft of the second motor 12 and a third motor 14 fixed on the supporting plate 13, wherein the part of the output shaft of the third motor 14 positioned outside is rectangular;

a plurality of end surface holes 24 arranged on the outer end surface of the linkage block 15, a linkage rod 25 connected with the end surface holes 24 in a sliding way, and an electromagnet 23 fixed in the end surface holes 24;

the linkage plate 19 is provided with a second rectangular hole 20, one side of the linkage plate 19 is fixedly connected with the end part of the linkage rod 25, which is positioned outside the end surface hole 24, the second rectangular hole 20 is matched with the part, which is positioned outside, of the output shaft of the third motor 14, and the central axis of the second rectangular hole 20 and the central axis of the output shaft of the third motor 14 are positioned on the same straight line;

the spring 26 is sleeved on the linkage rod 25, one end of the spring 26 is fixed on the outer end face of the linkage block 15, and the other end of the spring 26 is fixed on the linkage plate 19;

after the output shaft of the third motor 14 is inserted into the second rectangular hole 20, the third motor 14 will drive the linkage block 15 to rotate.

Here, before the bottom end of the sample moves to the bottom of the through hole 10, the electromagnet 23 is in a powered state, so that the linkage rod 25 overcomes the elastic force of the spring 26 to drive the linkage plate 19 to be close to the linkage block 15, when the bottom end of the sample moves to the bottom of the through hole 10, the second motor 12 is driven to drive the output shaft of the third motor 14 to be right opposite to the second rectangular hole 20 on the linkage plate 19 corresponding to the through hole 10, at this time, the electromagnet 23 is powered off, under the elastic force of the spring 26, the linkage plate 19 moves towards the third motor 14, and finally, the output shaft of the third motor 14 is inserted into the second rectangular hole 20, so that the third motor 14 drives the linkage block 15 to rotate.

As an embodiment, as shown in fig. 2 and 3, one end of the strut 17 fixed on the outer side surface of the linkage block 15 is a T-shaped end, and the T-shaped end is rotatably connected with a rotating groove 18 arranged on the side surface of the upright 8, so that the linkage block 15 is more stable when rotating.

As an embodiment, as shown in fig. 4 and 5, the second fixing portion includes:

a cavity 31 arranged at one side of the through hole 11, a second cylinder 27 fixed at the bottom of the cavity 31 and a third cylinder 28 fixed at the side wall of the cavity 31;

the bottom end of the pressure rod 29 is connected with the cavity 31 in a sliding manner, the pressure rod 29 is provided with a knife hole 32, a gap 33 is arranged above the front end of the pressure rod 29, and the output shaft of the third cylinder 28 is fixed at the bottom end of the pressure rod 29;

the front end of the cutting knife 30 is positioned in the knife hole 32, and the output shaft of the second air cylinder 27 is fixed at the rear end of the cutting knife 30.

In this embodiment, when the bottom end of the sample moves to the bottom of the through hole 10, the third cylinder 28 is started, the pressing rod 29 is driven to extend into the through hole 11, and after the sample in the through hole 11 is fixed, the second cylinder 27 is started, the cutter 30 is driven to cut off the sample, and after the sample is cut off, the second cylinder 27 returns to the original position, due to the existence of the notch 33, the cut-off sample can be conveniently separated from the through hole 11 under the operation of an operator, and the sample in the through hole 11 can be fixed.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the spirit of the present disclosure, features from the above embodiments or from different embodiments may also be combined, steps may be implemented in any order, and there are many other variations of different aspects of one or more embodiments of the present description as described above, which are not provided in detail for the sake of brevity.

It is intended that the one or more embodiments of the present specification embrace all such alternatives, modifications and variations as fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements, and the like that may be made without departing from the spirit and principles of one or more embodiments of the present disclosure are intended to be included within the scope of the present disclosure.