A stretching testing machine for dressing patches

Abstract

The present invention discloses a tensile testing machine for dressing patches, which comprises an L-shaped base. An installation box is fixedly connected to the L-shaped base. A support column rotatably arranged is penetrated through the installation box. A circular plate is installed at the upper end of the support column. A first clamping mechanism arranged coaxially is fixedly connected to the upper end of the circular plate. A threaded cylinder is fixedly connected to the short rod. A reciprocating lead screw is in threaded connection with the threaded cylinder. The other end of the reciprocating lead screw is fixedly connected to a pulling mechanism for cooperating with the second clamping mechanism. The first clamping mechanism and the second clamping mechanism clamp the dressing patch. The pulling mechanism pulls the second clamping mechanism to move, so as to conduct tensile detection on the dressing patch. The present invention can detect multiple dressing patches, avoiding the disadvantage of low detection efficiency of single-station detection in the prior art. Moreover, through the motor, the work on the circular plate can be switched, and the movement of the pulling block can also be realized, so as to conduct tensile detection on the dressing patch.

Description

Technical Field

[0001] The present invention relates to the technical field of dressing patch detection, and particularly to a tensile testing machine for dressing patches. Background Art

[0002] Yeast recombinant collagen dressing patches are similar to wound plasters. When applied to parts such as joints with large mobility, in order to enable the paste to fully stretch and contract with the stretching of the joints and skin, it is often necessary to detect the tensile strength of the dressing patches to make their ductility better. Generally, a tensile testing machine is used to detect the tensile strength.

[0003] When the existing tensile testing machine is in use, such as the utility model with the publication number CN220542628U, it is necessary to remove the fractured or qualified dressing patch from the two clamps before testing the next dressing patch to be tested. To ensure the accuracy of the test results, it is usually necessary to conduct tensile tests on multiple dressing patches. After one test is completed, another one is taken for replacement. Frequent taking wastes time and reduces work efficiency. For this reason, this application proposes a tensile testing machine for dressing patches. Summary of the Invention

[0004] The purpose of the present invention is to solve the above technical problems and propose a tensile testing machine for dressing patches.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A tensile testing machine for dressing patches includes an L-shaped base. An installation box is fixedly connected to the L-shaped base. A support column rotatably arranged is penetrated through the installation box. A circular plate is installed at the upper end of the support column. A first clamping mechanism arranged coaxially is fixedly connected to the upper end of the circular plate. Four chutes are arranged in an annular array distribution at the upper end of the circular plate. A movable block capable of resetting is slidably connected in the four chutes. A second clamping mechanism is fixedly connected to the movable block. A short rod rotatably arranged is penetrated through the L-shaped base. A threaded cylinder is fixedly connected to the short rod. A reciprocating lead screw is threadedly connected in the threaded cylinder. The other end of the reciprocating lead screw is fixedly connected to a pulling mechanism cooperating with the second clamping mechanism. The first clamping mechanism and the second clamping mechanism clamp the dressing patch. The pulling mechanism pulls the second clamping mechanism to move for tensile testing of the dressing patch.

[0007] Preferably, a motor is installed on the installation box. The output end of the motor is fixedly connected to a driving rod. The driving rod penetrates through the installation box and is rotatably connected thereto. A one-way bearing is installed on the driving rod. A worm is fixedly connected to the one-way bearing. The support column is provided with a worm gear fixedly connected thereto. The worm is meshed with the worm gear.

[0008] Preferably, the first clamping mechanism includes a fixed block fixed on the circular plate. A cross slot is provided through the upper part of the fixed block. A moving block is arranged in the cross slot. A guiding slot is provided at the inner bottom of the cross slot. A slider is slidably connected in the guiding slot. The slider is fixedly connected to the bottom of the moving block. The bottom area of the moving block is larger than the upper area of the slider. The upper end of the moving block is rotatably connected to a first screw rod. The first screw rod passes through the fixed block and is threadedly connected thereto. The upper end of the first screw rod is fixed with a first handle.

[0009] Preferably, a guiding rod is fixedly connected in the sliding slot. The guiding rod passes through the movable block and is slidably connected thereto. A spring is fixedly connected to the movable block. The other end of the spring is fixedly connected to the inner wall of the sliding slot. The spring is arranged outside the guiding rod.

[0010] Preferably, the second clamping mechanism includes a moving plate fixed on the upper end of the movable block. A clamping slot is provided through the moving plate. A clamping block is slidably connected in the clamping slot. The upper end of the clamping block is rotatably connected to a second screw rod. The second screw rod passes through the moving plate and is threadedly connected thereto. The upper end of the second screw rod is fixed with a second handle. A rectangular frame is fixed on the moving plate.

[0011] Preferably, the pulling mechanism includes a pulling block fixed on the reciprocating screw rod. A rectangular slot is provided at the bottom of the pulling block. A rectangular block is slidably connected in the rectangular slot. A locking block is fixed to the bottom of the rectangular block. An electric push rod is fixed to the upper end of the rectangular block. The electric push rod is fixedly connected to the inner wall of the rectangular slot. The locking block is arranged in cooperation with the rectangular frame.

[0012] Preferably, it further includes a guiding mechanism. The guiding mechanism includes a sleeve fixed on the L-shaped base. A sliding rod is slidably connected in the sleeve. A connecting block is fixed on the sliding rod. The connecting block is fixedly connected to the pulling block.

[0013] Preferably, it further includes a transmission mechanism. The transmission mechanism includes two transmission wheels fixed on the short rod and the driving rod. The two transmission wheels are connected by a transmission belt.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The first screw rod drives the moving block and the slider to move downward. The slider moves in the guiding slot to guide the moving block. As the moving block moves downward, the cross slot is used to clamp one end of the dressing patch. Then, the second handle is rotated. The rotation of the second handle drives the second screw rod to rotate. The rotation of the second screw rod drives the clamping block to move downward. The downward movement of the clamping block clamps the other end of the dressing patch. Such an operation can clamp and fix multiple dressing patches.

[0016] 2. The reciprocating lead screw moves back, thereby driving the pulling block to move back, which can drive the rectangular frame, the movable block and the moving plate to move. The moving plate moves to stretch the dressing patch. When the reciprocating lead screw moves away from the end of the circular plate, if the dressing patch does not break, it is qualified; if it breaks, it is unqualified.

[0017] 3. The motor works to drive the one-way bearing and the worm to rotate. The rotation of the worm drives the worm wheel to rotate. The rotation of the worm wheel drives the support column to rotate. The support column drives the circular plate to rotate by 90°. After rotation, it stops. In this way, another clamped dressing patch is opposite to the pulling block.

[0018] In summary, the present invention can detect multiple dressing patches, avoiding the disadvantage of low detection efficiency in a single-station in the prior art. Moreover, through the motor, the work conversion on the circular plate can be realized, and the movement of the pulling block can also be realized to stretch and detect the dressing patch. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of a stretching testing machine for dressing patches proposed by the present invention;

[0020] Figure 2 It is a schematic diagram of the circular plate in a stretching testing machine for dressing patches proposed by the present invention;

[0021] Figure 3 It is a schematic structural diagram of the fixed block in a stretching testing machine for dressing patches proposed by the present invention;

[0022] Figure 4 It is a schematic structural diagram of the electric push rod in a stretching testing machine for dressing patches proposed by the present invention;

[0023] Figure 5 It is a schematic structural diagram of the fixed block in a stretching testing machine for dressing patches proposed by the present invention;

[0024] Figure 6 It is a schematic structural diagram of the circular plate in a stretching testing machine for dressing patches proposed by the present invention;

[0025] Figure 7 It is a schematic diagram of the transmission mechanism in a stretching testing machine for dressing patches proposed by the present invention.

[0026] In the figure: 1 L-shaped base, 2 motor, 3 mounting box, 4 driving rod, 5 support column, 6 worm gear, 7 worm, 8 circular plate, 9 short rod, 10 sleeve, 11 threaded cylinder, 12 transmission belt, 13 chute, 14 guide rod, 15 movable block, 16 spring, 17 moving plate, 18 rectangular frame, 19 clamping groove, 20 clamping block, 21 second screw rod, 22 second handle, 23 fixed block, 24 guide groove, 25 cross groove, 26 connecting block, 27 moving block, 28 slider, 29 first screw rod, 30 first handle, 31 sliding rod, 32 reciprocating screw rod, 33 pulling block, 34 rectangular groove, 35 rectangular block, 36 locking block, 37 electric push rod, 38 transmission wheel. Detailed implementation mode

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0028] Refer to Figures 1-7 , a stretching test machine for dressing stickers, including an L-shaped base 1, an installation box 3 fixedly connected to the L-shaped base 1, a support column 5 rotatably arranged through the installation box 3, a motor 2 installed on the installation box 3, the output end of the motor 2 fixedly connected to a driving rod 4, the driving rod 4 passing through the installation box 3 and rotatably connected thereto, a one-way bearing installed on the driving rod 4, a worm 7 fixedly connected to the one-way bearing, a support column 5, and a worm gear 6 fixedly connected to the support column 5, the worm 7 meshing with the worm gear 6.

[0029] The upper end of the support column 5 is provided with a circular plate 8, and the upper end of the circular plate 8 is fixedly connected with a first clamping mechanism arranged coaxially. The first clamping mechanism includes a fixed block 23 fixed on the circular plate 8, a cross groove 25 penetrating above the fixed block 23, a moving block 27 arranged in the cross groove 25, a guide groove 24 arranged at the inner bottom of the cross groove 25, a slider 28 slidably connected in the guide groove 24, the slider 28 fixedly connected to the bottom of the moving block 27, the bottom area of the moving block 27 being larger than the upper area of the slider 28, the upper end of the moving block 27 being rotatably connected with a first screw rod 29, the first screw rod 29 passing through the fixed block 23 and being threadedly connected thereto, and a first handle 30 fixed to the upper end of the first screw rod 29.

[0030] The upper end of the circular plate 8 is provided with four chutes 13 distributed in an annular array. Four movable blocks 15 capable of resetting are slidably connected in the four chutes 13. A guide rod 14 is fixedly connected in the chute 13. The guide rod 14 passes through the movable block 15 and is slidably connected thereto. A spring 16 is fixedly connected to the movable block 15. The other end of the spring 16 is fixedly connected to the inner wall of the chute 13, and the spring 16 is arranged outside the guide rod 14.

[0031] A second clamping mechanism is fixedly connected to the movable block 15. The second clamping mechanism includes a moving plate 17 fixed to the upper end of the movable block 15. A clamping groove 19 is provided through the moving plate 17. A clamping block 20 is slidably connected in the clamping groove 19. The upper end of the clamping block 20 is rotatably connected to a second screw rod 21. The second screw rod 21 passes through the moving plate 17 and is threadedly connected thereto. The upper end of the second screw rod 21 is fixed with a second handle 22. A rectangular frame 18 is fixed to the moving plate 17.

[0032] A short rod 9 rotatably arranged is provided through the L-shaped base 1. A threaded cylinder 11 is fixedly connected to the short rod 9. A reciprocating screw rod 32 is threadedly connected in the threaded cylinder 11. The other end of the reciprocating screw rod 32 is fixedly connected to a pulling mechanism cooperating with the second clamping mechanism. The pulling mechanism includes a pulling block 33 fixed to the reciprocating screw rod 32. A rectangular groove 34 is provided at the bottom of the pulling block 33. A rectangular block 35 is slidably connected in the rectangular groove 34. A locking block 36 is fixed to the bottom of the rectangular block 35. An electric push rod 37 is fixed to the upper end of the rectangular block 35. The electric push rod 37 is fixedly connected to the inner wall of the rectangular groove 34. The locking block 36 is arranged in cooperation with the rectangular frame 18.

[0033] Wherein, a guiding mechanism is further included. The guiding mechanism includes a sleeve 10 fixed to the L-shaped base 1. A sliding rod 31 is slidably connected in the sleeve 10. A connecting block 26 is fixed to the sliding rod 31. The connecting block 26 is fixedly connected to the pulling block 33.

[0034] A transmission mechanism is further included. The transmission mechanism includes two transmission wheels 38 fixed to the short rod 9 and the driving rod 4. The two transmission wheels 38 are connected by a transmission belt 12. When the motor 2 works, it can drive the driving rod 4 to rotate, and then the short rod 9 can be rotated through the transmission wheels 38 and the transmission belt 12.

[0035] The first clamping mechanism and the second clamping mechanism clamp the dressing patch, and the pulling mechanism pulls the second clamping mechanism to move for tensile detection of the dressing patch.

[0036] When the present invention is used, the two ends of the dressing patch are respectively placed in the cross groove 25 and the clamping groove 19. The staff manually rotates the first handle 30. The rotation of the first handle 30 drives the first screw rod 29 to rotate. The first screw rod 29 drives the moving block 27 and the slider 28 to move downward. The slider 28 moves in the guiding groove 24 to guide the moving block 27. As the moving block 27 moves downward, one end of the dressing patch can be clamped in cooperation with the cross groove 25. Then, the second handle 22 is rotated. The rotation of the second handle 22 drives the second screw rod 21 to rotate. The rotation of the second screw rod 21 drives the clamping block 20 to move downward. The downward movement of the clamping block 20 clamps the other end of the dressing patch. Such an operation can clamp and fix multiple dressing patches;

[0037] Then start the motor 2. The operation of the motor 2 drives the driving rod 4 to rotate. The rotation of the driving rod 4 drives the one-way bearing to rotate. Under the action of the one-way bearing, the worm 7 is in a static state at this time, that is, relative rotation occurs between the driving rod 4 and the worm 7. Under the transmission of the transmission wheel 38 and the transmission belt 12, the short rod 9 rotates. The rotation of the short rod 9 drives the threaded cylinder 11 to rotate. Under the action of the sleeve 10 and the sliding rod 31, the connecting block 26 can be guided, and then the pulling block 33 can be guided. Therefore, the reciprocating lead screw 32 cannot rotate. When the threaded cylinder 11 rotates, the reciprocating lead screw 32 can drive the pulling block 33 to move. When the locking block 36 is aligned with the rectangular frame 18, the electric push rod 37 drives the rectangular block 35 and the locking block 36 to move downward. Finally, the locking block 36 is clamped into the rectangular frame 18;

[0038] The motor 2 continues to operate, and the reciprocating lead screw 32 moves back, thereby driving the pulling block 33 to move back, which can drive the rectangular frame 18, the movable block 15 and the moving plate 17 to move. The movement of the moving plate 17 stretches the dressing patch. When the reciprocating lead screw 32 moves away from the end of the circular plate 8, if the dressing patch does not break, it means it is qualified; if it breaks, it means it is unqualified;

[0039] After the detection is completed, the electric push rod 37 drives the rectangular block 35 and the locking block 36 to reset, and under the action of the spring 16, the rectangular frame 18, the movable block 15 and the moving plate 17 are reset;

[0040] Then the motor 2 rotates in reverse. The operation of the motor 2 drives the one-way bearing and the worm 7 to rotate. The rotation of the worm 7 drives the worm gear 6 to rotate. The rotation of the worm gear 6 drives the support column 5 to rotate. The support column 5 drives the circular plate 8 to rotate by 90°, and then stops after rotation. In this way, another clamped dressing patch is opposite to the pulling block 33;

[0041] Start the motor 2 to rotate forward, and repeat the above operations to detect the dressing patch. For the detected dressing patch, the staff can remove it and replace it with a new one for detection;

[0042] In this way, multiple dressing patches can be detected, avoiding the drawback of low detection efficiency in the single-station detection of the prior art. Moreover, through the motor 2, the work on the circular plate 8 can be switched, and the movement of the pulling block 33 can also be realized, so as to perform tensile detection on the dressing patch.

[0043] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A stretching testing machine for dressing patches, comprising an L-shaped base (1) fixedly connected with an installation box (3) thereon. A support column (5) rotatably arranged penetrates through the installation box (3). A circular plate (8) is installed at the upper end of the support column (5). A first clamping mechanism arranged coaxially is fixedly connected to the upper end of the circular plate (8). Four chutes (13) distributed in an annular array are arranged at the upper end of the circular plate (8). A movable block (15) capable of resetting is slidably connected in the four chutes (13). A second clamping mechanism is fixedly connected to the movable block (15). A short rod (9) rotatably arranged penetrates through the L-shaped base (1). A threaded cylinder (11) is fixedly connected to the short rod (9). A reciprocating screw rod (32) is in threaded connection with the threaded cylinder (11). The other end of the reciprocating screw rod (32) is fixedly connected to a pulling mechanism cooperating with the second clamping mechanism. The first clamping mechanism and the second clamping mechanism clamp the dressing patch, and the pulling mechanism pulls the second clamping mechanism to move for stretching detection of the dressing patch. A guide rod (14) is fixedly connected in the chute (13). The guide rod (14) penetrates through the movable block (15) and is slidably connected therewith. A spring (16) is fixedly connected to the movable block (15). The other end of the spring (16) is fixedly connected to the inner wall of the chute (13). The spring (16) is arranged outside the guide rod (14). The second clamping mechanism includes a moving plate (17) fixed to the upper end of the movable block (15). A clamping groove (19) penetrates through the moving plate (17). A clamping block (20) is slidably connected in the clamping groove (19). A second screw rod (21) is rotatably connected to the upper end of the clamping block (20). The second screw rod (21) penetrates through the moving plate (17) and is in threaded connection therewith. A second handle (22) is fixed to the upper end of the second screw rod (21). A rectangular frame (18) is fixed to the moving plate (17).

2. According to the stretching testing machine for dressing patches described in claim 1, the first clamping mechanism includes a fixed block (23) fixed to the circular plate (8). A cross groove (25) penetrates through above the fixed block (23). A moving block (27) is arranged in the cross groove (25). A guide groove (24) is arranged at the inner bottom of the cross groove (25). A slider (28) is slidably connected in the guide groove (24). The slider (28) is fixedly connected to the bottom of the moving block (27). The bottom area of the moving block (27) is larger than the upper end area of the slider (28). A first screw rod (29) is rotatably connected to the upper end of the moving block (27). The first screw rod (29) penetrates through the fixed block (23) and is in threaded connection therewith. A first handle (30) is fixed to the upper end of the first screw rod (29).

3. A stretching testing machine for dressing patches according to claim 2, characterized in that, A motor (2) is installed on the installation box (3). The output end of the motor (2) is fixedly connected to a driving rod (4). The driving rod (4) penetrates through the installation box (3) and is rotatably connected therewith. A one-way bearing is installed on the driving rod (4). A worm (7) is fixedly connected to the one-way bearing. A worm gear (6) is fixedly connected to the support column (5). The worm (7) meshes with the worm gear (6).

4. A tensile testing machine for dressing patches according to claim 3, wherein, The pulling mechanism includes a pulling block (33) fixed on the reciprocating lead screw (32). A rectangular groove (34) is provided at the bottom of the pulling block (33). A rectangular block (35) is slidably connected in the rectangular groove (34). A locking block (36) is fixed at the bottom of the rectangular block (35). An electric push rod (37) is fixed at the upper end of the rectangular block (35). The electric push rod (37) is fixedly connected to the inner wall of the rectangular groove (34). The locking block (36) is arranged in cooperation with the rectangular frame (18).

5. A stretching testing machine for dressing patches according to claim 4, characterized in that, It further includes a guiding mechanism. The guiding mechanism includes a sleeve (10) fixed on the L-shaped base (1). A sliding rod (31) is slidably connected in the sleeve (10). A connecting block (26) is fixed on the sliding rod (31). The connecting block (26) is fixedly connected to the pulling block (33).

6. A stretching test machine for dressing patches according to claim 4, characterized in that, It further includes a transmission mechanism. The transmission mechanism includes two transmission wheels (38) fixed on the short rod (9) and the driving rod (4). The two transmission wheels (38) are connected by a transmission belt (12).

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