CN114646548A

CN114646548A - Polyurethane product shear strength test equipment

Info

Publication number: CN114646548A
Application number: CN202210548389.8A
Authority: CN
Inventors: 王�华; 陈华; 虞小荣; 张炜
Original assignee: Jiangsu Delida New Material Co ltd
Current assignee: Jiangsu Delida New Material Co ltd
Priority date: 2022-05-20
Filing date: 2022-05-20
Publication date: 2022-06-21
Anticipated expiration: 2042-05-20
Also published as: CN114646548B

Abstract

The invention relates to the technical field of shearing strength testing of polyurethane products, in particular to shearing strength testing equipment of a polyurethane product, which comprises a base and a testing platform, wherein the testing platform is connected with the top of the base, a feeding module, a testing module and a pressing module are arranged on the base, the feeding module comprises a supporting plate, a motor, a guide rod, an inserting plate, a rotating plate, a support frame and a material frame, the supporting plate is positioned on the front side of the testing platform and connected with the top of the base, the motor is connected with the top of the supporting plate, the guide rod is sleeved on the outer side of an output shaft of the motor, the inserting plate is detachably arranged on the front side of the testing platform, the rotating plate is movably connected with the top of the inserting plate through a rotating shaft, the support frame is connected with the top of the testing platform, and the material frame is connected with the front side of the support frame. According to the invention, the motor drives the guide rod to rotate, each time the guide rod rotates for a circle, the plurality of C-shaped plates on the rotating plate can sweep over the bottom of the material frame once, and then a product positioned at the bottommost of the material frame enters the sliding groove under the pushing of the rotating plate.

Description

Polyurethane product shear strength test equipment

Technical Field

The invention relates to the technical field of testing of the shear strength of a polyurethane product, in particular to a device for testing the shear strength of the polyurethane product.

Background

Polyurethanes, also known as polyurethane resins. The high-molecular material with high strength, tear resistance, wear resistance and other characteristics is widely applied to the fields of daily life, industrial and agricultural production, medicine and the like, such as aviation, railways, buildings, sports and the like, is used for surface finishing of wooden furniture and metal, is used for heat insulation and cold insulation of storage tanks, pipelines, refrigeration houses, beer, fermentation tanks and fresh-keeping tanks, is used for heat insulation and water prevention of house buildings, can also be used for prefabricated polyurethane plates, can be used for manufacturing plastic products, wear-resistant synthetic rubber products, synthetic fibers, hard and soft foam plastic products, adhesives, coatings and the like, and is used for surface coating of various woodware, chemical equipment, telecommunication equipment, instruments and various transportation tools.

When the strength of the polyurethane product is tested, the product needs to be conveyed by a conveying mechanism, and the mechanical automatic conveying can be realized, but the structural design is complex, and the conveying mechanism is easy to cause problems in movement, so that the testing speed is reduced.

Disclosure of Invention

The present invention is directed to solving one of the technical problems of the prior art or the related art.

Therefore, the technical scheme adopted by the invention is as follows:

the utility model provides a polyurethane products shear strength test equipment, includes basement and testboard, the testboard is connected with the basement top, be equipped with material loading module, test module and compress tightly the module on the basement, material loading module including be located the testboard front side and with the fagging that the basement top is connected, with the motor that the fagging top is connected, cup joint in guide bar in the motor output shaft outside, demountable installation in the picture peg of testboard front side, through the pivot with picture peg top swing joint's commentaries on classics board, with the strut that the testboard top is connected and with the material frame that the strut front side is connected, the guide bar bottom slides and extends to commentaries on classics inboard, test module include with a plurality of U-shaped poles of commentaries on classics board swing joint, activity cup joint in the cylinder in the U-shaped pole outside, inlay and locate the tact switch at testboard top, Inlay and locate the cylinder at testboard top, be located the plate body at testboard top, connect in two spliced poles between testboard and the plate body, be located two between the spliced pole and connect in L shaped plate between testboard and the plate body and run through in the pneumatic cylinder at plate body top, dab switch and cylinder electric connection.

The pressing module comprises a first bevel gear, a second bevel gear, a rod body, a reciprocating screw rod, two vertical plates, a bearing seat, a connecting plate, a plurality of connecting rods and a pressing frame, wherein the first bevel gear is positioned at the top of the supporting plate and is sleeved outside the output shaft of the motor, the second bevel gear is meshed with the first bevel gear, the rod body is installed on one side of the second bevel gear, the reciprocating screw rod is connected with the rod body, the two vertical plates are connected with the top of the supporting plate, the bearing seat is movably sleeved outside the reciprocating screw rod, the connecting plate is installed on the rear side of the bearing seat, the connecting rods are connected with the rear side of the connecting plate, and the pressing frame is connected among the connecting rods.

Through adopting above-mentioned technical scheme, the motor drives the guide bar and rotates, and guide bar rotates a week every time, changes a plurality of C shaped plates on the board and all can skive the material frame bottom once, then lies in the goods at material frame bottommost and enter into the spout inside under the promotion of changeing the board, and mechanized neat orderly material loading has reduced the probability of makeing mistakes, has guaranteed test speed.

The invention in a preferred example may be further configured to: the rotating plate is integrally processed and manufactured by a cross-shaped plate and a plurality of C-shaped plates, the C-shaped plates are surrounded on the outer side of the cross-shaped plate, the thickness of the cross-shaped plate is equal to that of the C-shaped plate, and the bottom of the cross-shaped plate and the top of the test board are located on the same horizontal plane.

Through adopting above-mentioned technical scheme, adopt this structural design, inside each C shaped plate all can promote a polyurethane product to advance the spout through material frame bottom.

The present invention in a preferred example may be further configured to: the sliding groove is formed in the top of the test board and located on one side of the material frame, the width of the sliding groove is equal to the inner diameter of the material frame, and the air cylinder is located inside the sliding groove.

Through adopting above-mentioned technical scheme, the spout can lead to the goods, guarantees that it can be accurate to enter into the plate body bottom, ensures that the pneumatic cylinder is the shear strength test to the goods.

The invention in a preferred example may be further configured to: the cylinder expansion end is connected with the push pedal, the push pedal constitutes sliding connection with the spout and concerns.

Through adopting above-mentioned technical scheme, the push pedal has increased the area of contact of cylinder expansion end and the interior goods of spout, reduces the probability that the goods blocked in the spout.

The present invention in a preferred example may be further configured to: the roller is made of metal materials, and the distance between the roller and the rotating shaft is equal to the distance between the tact switch and the rotating shaft.

Through adopting above-mentioned technical scheme, the cylinder that metal material made has certain weight, and its back of moving to the testboard can be pasted tightly with the testboard top, and then realizes pressing the purpose of dabbing the switch.

The present invention in a preferred example may be further configured to: two limiting plates with different lengths are installed at the top of the test board, and the two limiting plates are respectively located on the front side and the rear side of the sliding groove.

Through adopting above-mentioned technical scheme, the limiting plate can lead to the goods, improves the precision that the goods entered into the plate body bottom.

The present invention in a preferred example may be further configured to: the pressing frame is located at the bottom of the plate body, and the inner diameter of the pressing frame is smaller than the width of the sliding groove.

Through adopting above-mentioned technical scheme, adopt this size design, the compressing tightly goods that the pressure frame can be firmly.

The invention in a preferred example may be further configured to: the vertical plate close to the left side of the base is movably sleeved at the outer end of the reciprocating screw rod, and the vertical plate far away from the left side of the base is movably sleeved at the joint of the rod body and the outgoing filament rod.

Through adopting above-mentioned technical scheme, two risers play the effect that increases reciprocal lead screw and body of rod structural stability.

By adopting the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the motor drives the guide rod to rotate, the plurality of C-shaped plates on the rotating plate can sweep the bottom of the material frame once when the guide rod rotates for one circle, and then a product positioned at the bottommost part of the material frame enters the chute under the pushing of the rotating plate, so that the structure is simple, the error probability is reduced, and the testing speed is ensured.

2. According to the invention, the roller is contacted with the light touch switch, then the light touch switch controls the cylinder to work, the movable end of the cylinder pushes the product through the push plate, the product moves along the chute, when the movable end of the cylinder extends to the longest state, the product leaves the chute, and the product is accurately conveyed to a position close to the plate body, so that conditions are created for pressing the pressing frame to the product.

3. According to the invention, the first bevel gear drives the rod body to rotate through the second bevel gear, the rod body drives the reciprocating screw rod to rotate, then the bearing seat translates along the supporting plate, then the bearing seat drives the pressing frame to move through the connecting plate and the connecting rod, the pressing frame presses the product to move to the bottom of the plate body, the hydraulic cylinder is controlled to descend, the hydraulic cylinder tests the shear strength of the product, the product is firmly fixed under the pressing frame, no displacement occurs in the test, and the accuracy of test data is ensured.

Drawings

FIG. 1 is a top view of the overall structure of the present invention;

FIG. 2 is a perspective view of the overall structure of the present invention;

FIG. 3 is a rear view of the overall structure of the present invention;

FIG. 4 is a perspective view of a loading module of the present invention;

FIG. 5 is a perspective view of a test module of the present invention;

FIG. 6 is a perspective view of a compression module of the present invention;

FIG. 7 is a front view of a compression module of the present invention;

FIG. 8 is an enlarged view of the portion A of FIG. 7 according to the present invention.

Reference numerals:

100. a substrate;

200. a test bench;

300. a feeding module; 310. a supporting plate; 320. a motor; 330. a guide rod; 340. rotating the plate; 350. inserting plates; 360. a support frame; 370. material frame;

400. a test module; 410. a U-shaped rod; 420. a drum; 430. a tact switch; 440. a cylinder; 450. a plate body; 460. connecting columns; 470. an L-shaped plate; 480. a hydraulic cylinder;

500. a compression module; 510. a first bevel gear; 520. a second bevel gear; 530. a rod body; 540. a reciprocating screw rod; 550. a vertical plate; 560. a bearing seat; 570. a connecting plate; 580. a connecting rod; 590. pressing the frame;

600. and a limiting plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.

It is to be understood that this description is made only by way of example and not as a limitation on the scope of the invention.

The following describes a polyurethane product shear strength test device provided by some embodiments of the present invention with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 1 to 8, the apparatus for testing the shear strength of a polyurethane product provided by the present invention comprises a substrate 100 and a testing table 200, wherein the testing table 200 is connected to the top of the substrate 100, the substrate 100 is provided with a feeding module 300, a testing module 400 and a pressing module 500, the feeding module 300 comprises a supporting plate 310 located at the front side of the testing table 200 and connected to the top of the substrate 100, the supporting plate 310 can support a motor 320 and is structurally designed to not affect the rotation of a rotating plate 340, the motor 320 is connected to the top of the supporting plate 310, the motor 320 provides power for conveying the polyurethane product, a guide rod 330 is sleeved outside an output shaft of the motor 320, the guide rod 330 rotates along with the output shaft of the motor 320, the guide rod 330 can rotate the rotating plate 340, and plays a role in force transmission, and can be detachably mounted to an inserting plate 350 at the front side of the testing table 200, the insertion plate 350 provides support for the rotating plate 340, so that the rotating plate 340 can rotate more stably, the installation firmness of the insertion plate is improved, the rotating plate 340 is movably connected with the top of the insertion plate 350 through a rotating shaft, the supporting frame 360 is connected with the top of the test bench 200, the material frame 370 is connected with the front side of the supporting frame 360, and the bottom end of the guide rod 330 extends into the rotating plate 340 in a sliding mode; the automatic feeding device has the advantages that the automatic feeding device is used for mechanically, orderly and orderly feeding, the structure is simple, the error rate is low, and the detection efficiency is ensured;

the test module 400 comprises a plurality of U-shaped rods 410 movably connected with the rotating plate 340, the U-shaped rods 410 provide support for the roller 420, the roller 420 can be accurately pressed to the tact switch 430, the roller 420 is movably sleeved outside the U-shaped rods 410, the tact switch 430 is embedded at the top of the test bench 200, the air cylinder 440 plays a role of conveying products, the plate body 450 is positioned at the top of the test bench 200, the plate body 450 provides support for the hydraulic cylinder 480, the hydraulic cylinder 480 can stably perform measurement operation, the two connecting columns 460 connected between the test bench 200 and the plate body 450 are connected, the connecting columns 460 are matched with the L-shaped plate 470, the connection strength between the plate body 450 and the test bench 200 is improved, the L-shaped plate 470 is positioned between the two connecting columns 460 and connected between the test bench 200 and the plate body 450, and the hydraulic cylinder 480 penetrating through the top of the plate body 450, the tact switch 430 is electrically connected with the cylinder 440, and by adopting the structural design, the cylinder 440 is started after the product falls into the chute, so that the product conveying efficiency is improved;

the pressing module 500 comprises a first bevel gear 510 positioned on the top of the supporting plate 310 and sleeved outside the output shaft of the motor 320, a second bevel gear 520 engaged with the first bevel gear 510, a rod body 530 mounted on one side of the second bevel gear 520, a reciprocating screw rod 540 connected with the rod body 530, two vertical plates 550 connected with the top of the supporting plate 310, a bearing seat 560 movably sleeved outside the reciprocating screw rod 540, a connecting plate 570 mounted on the rear side of the bearing seat 560, a plurality of connecting rods 580 connected with the rear side of the connecting plate 570, and a pressing frame 590 connected among the connecting rods 580; when the shearing strength test is done to the goods at the pneumatic cylinder, the displacement can not appear in the test under the firm settlement of pressure frame to the goods, guarantees test data's accuracy nature.

Specifically, the swivel plate 340 is made by a cross shaped plate and a plurality of C shaped plate integrated into one piece, and is a plurality of the C shaped plate all surrounds in the cross shaped plate outside, cross shaped plate and C shaped plate thickness equal, cross shaped plate bottom and testboard 200 top are located same horizontal plane, adopt this structural design, and inside each C shaped plate all can promote a polyurethane product to advance the spout through material frame 370 bottom.

Further, the spout has been seted up at testboard 200 top, the spout is located material frame 370 one side, the width and the material frame 370 internal diameter of spout equal, inside cylinder 440 was located the spout, the spout can lead goods, guarantees that it can be accurate enter into plate body 450 bottom, ensures that pneumatic cylinder 480 is anti shear strength test to goods, the activity end of cylinder 440 is connected with the push pedal, the push pedal constitutes sliding connection relation with the spout, and the push pedal has increased the area of contact of goods in cylinder 440 activity end and the spout, reduces the probability that goods blocked in the spout.

Further, the pressing frame 590 is located at the bottom of the plate body 450, and the inner diameter of the pressing frame 590 is smaller than the width of the sliding groove, and with the size design, the pressing frame 590 can firmly press the product.

Furthermore, the vertical plate 550 close to the left side of the base 100 is movably sleeved at the outer end of the reciprocating screw rod 540, the vertical plate 550 far away from the left side of the base 100 is movably sleeved at the joint of the rod body 530 and the reciprocating screw rod 540, and the two vertical plates 550 play a role in increasing the structural stability of the reciprocating screw rod 540 and the rod body 530.

Example two:

with reference to fig. 1, 2 and 5, on the basis of the first embodiment, the roller 420 is made of a metal material, a distance between the roller 420 and the rotating shaft is equal to a distance between the tact switch 430 and the rotating shaft, and the roller 420 made of the metal material has a certain weight and can be attached to the top of the test bed 200 after moving onto the test bed 200, so as to press the tact switch 430.

Example three:

with reference to fig. 1, 2, 3 and 5, in the above embodiment, two limiting plates 600 with different lengths are installed at the top of the test platform 200, the two limiting plates 600 are respectively located at the front side and the rear side of the chute, and the limiting plates 600 can guide the product, so as to improve the accuracy of the product entering the bottom of the plate body 450.

The working principle and the using process of the invention are as follows: in the initial state, a polyurethane product to be tested is placed in the material frame 370, when the present invention is put into practical use, the motor 320 is started, the motor 320 simultaneously drives the guide rod 330 and the first bevel gear 510 to rotate, wherein each rotation of the guide rod 330, the plurality of C-shaped plates on the rotating plate 340 will pass over the bottom of the material frame 370 once, then the product at the bottommost of the material frame 370 enters the inside of the chute under the push of the rotating plate 340, the roller 420 will contact with the tact switch 430, then the tact switch 430 controls the operation of the air cylinder 440, the movable end of the air cylinder 440 will push the product through the push plate, the product moves along the chute, when the movable end of the air cylinder 440 extends to the longest state, the product leaves the chute, then the rotating first bevel gear 510 drives the rod 530 to rotate through the second bevel gear 520, the rod 530 will rotate back and forth, then the screw 540 will rotate, and then the bearing seat 560 will translate along the supporting plate 310, then the bearing seat 560 carries the pressing frame 590 to move through the connecting plate 570 and the connecting rod 580, the pressing frame 590 presses the product to move to the bottom of the plate body 450, and then the hydraulic cylinder 480 is controlled to descend, and the hydraulic cylinder 480 performs a shear strength test on the product.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the claims and their equivalents.

Claims

1. The utility model provides a polyurethane goods shear strength test equipment, includes basement (100) and testboard (200), testboard (200) are connected with basement (100) top, be equipped with material loading module (300), test module (400) and compress tightly module (500) on basement (100), its characterized in that:

the feeding module (300) comprises a supporting plate (310) which is positioned on the front side of the test bench (200) and connected with the top of the substrate (100), a motor (320) connected with the top of the supporting plate (310), a guide rod (330) sleeved outside an output shaft of the motor (320), an inserting plate (350) detachably mounted on the front side of the test bench (200), a rotating plate (340) movably connected with the top of the inserting plate (350) through a rotating shaft, a support frame (360) connected with the top of the test bench (200) and a material frame (370) connected with the front side of the support frame (360), wherein the bottom end of the guide rod (330) extends into the rotating plate (340) in a sliding manner;

the test module (400) comprises a plurality of U-shaped rods (410) movably connected with the rotating plate (340), a roller (420) movably sleeved outside the U-shaped rods (410), a tact switch (430) embedded at the top of the test bench (200), a cylinder (440) embedded at the top of the test bench (200), a plate body (450) positioned at the top of the test bench (200), two connecting columns (460) connected between the test bench (200) and the plate body (450), two connecting columns (460) positioned between the two connecting columns (460) and connected to an L-shaped plate (470) between the test bench (200) and the plate body (450) and a hydraulic cylinder (480) penetrating through the top of the plate body (450), wherein the tact switch (430) is electrically connected with the cylinder (440).

2. The apparatus for testing shear strength of polyurethane article according to claim 1, the pressing module (500) comprises a first bevel gear (510) which is positioned at the top of the supporting plate (310) and sleeved outside an output shaft of the motor (320), a second bevel gear (520) engaged with the first bevel gear (510), a rod body (530) installed on one side of the second bevel gear (520), a reciprocating screw rod (540) connected with the rod body (530), two vertical plates (550) connected with the top of the supporting plate (310), a bearing seat (560) movably sleeved outside the reciprocating screw rod (540), a connecting plate (570) installed on the rear side of the bearing seat (560), a plurality of connecting rods (580) connected with the rear side of the connecting plate (570), and a pressing frame (590) connected among the connecting rods (580).

3. The apparatus for testing the shear strength of a polyurethane product according to claim 1, wherein the rotating plate (340) is integrally formed by a cross-shaped plate and a plurality of C-shaped plates, the plurality of C-shaped plates surround the outer side of the cross-shaped plate, the thickness of the cross-shaped plate is equal to that of the C-shaped plates, and the bottom of the cross-shaped plate is located at the same horizontal plane as the top of the testing table (200).

4. The equipment for testing the shear strength of the polyurethane product according to claim 1, wherein a sliding groove is formed in the top of the testing table (200), the sliding groove is located on one side of the material frame (370), the width of the sliding groove is equal to the inner diameter of the material frame (370), and the air cylinder (440) is located inside the sliding groove.

5. The apparatus for testing the shear strength of a polyurethane product as claimed in claim 4, wherein the movable end of the cylinder (440) is connected with a push plate, and the push plate and the sliding groove form a sliding connection relationship.

6. The apparatus for testing shear strength of polyurethane article according to claim 1, wherein said roller (420) is made of metal material, and the distance between said roller (420) and the rotating shaft is equal to the distance between said tact switch (430) and the rotating shaft.

7. The equipment for testing the shear strength of the polyurethane product according to claim 4, wherein two limiting plates (600) with different lengths are mounted at the top of the testing table (200), and the two limiting plates (600) are respectively positioned at the front side and the rear side of the sliding chute.

8. The apparatus for testing shear strength of polyurethane article according to claim 2, wherein said pressing frame (590) is located at the bottom of the plate body (450), and the inner diameter of said pressing frame (590) is smaller than the width of the sliding groove.

9. The apparatus for testing the shear strength of polyurethane products according to claim 2, wherein the riser (550) near the left side of the base (100) is movably sleeved at the outer end of the reciprocating screw rod (540), and the riser (550) far from the left side of the base (100) is movably sleeved at the joint of the rod body (530) and the reciprocating screw rod (540).