Polyurethane adhesive synthesis experiment detection device

Abstract

The utility model relates to the technical field of polyurethane adhesives, and discloses a polyurethane adhesive synthesis experiment detection device which comprises a working table, a bottom plate is fixedly connected to the side wall of the working table, a pull plate is arranged on the side wall of the bottom plate in an attached mode, a pull cylinder is fixedly connected to the side wall of the pull plate, and the pull cylinder is fixedly connected with the bottom plate. The inner wall of the pull cylinder is fixedly connected with an extension spring, and the end of the extension spring is fixedly connected with a piston plate. A polyurethane adhesive is placed in a gap between a bottom plate and a pull plate, a handle is rotated to drive a screw rod to pull a pull rod to move, a piston plate is pulled to move, so that an extension spring is stretched to apply pull force to a pull cylinder, the pull cylinder applies pull force to the pull plate, and the piston plate moves to drive a pointer to move along the inner wall of a strip-shaped opening and slide along the surface of a scale mark. The change of the pulling force can be visually seen, the size of the gap between the bottom plate and the pulling plate can be observed according to different pressing pulling forces, and the viscosity condition of the polyurethane adhesive can be calculated and judged.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane adhesives, in particular to a polyurethane adhesive synthesis experimental detection device. Background Art

[0002] Polyurethane adhesive is a high-performance adhesive commonly used to bond metals, plastics, rubber, wood and other materials. It has excellent heat resistance, weather resistance and chemical resistance, and can maintain bonding effects in various harsh environments. Polyurethane adhesives are usually two-component and need to be mixed and stirred before use, and then applied to the surface to be bonded. After curing, a strong bond is formed.

[0003] In the prior art, in order to inspect the production quality of the polyurethane adhesive after the production and processing of the polyurethane adhesive is completed, it is necessary to conduct an experimental test on the polyurethane adhesive to detect the viscosity of the polyurethane adhesive. During the test, the polyurethane adhesive is bonded and set at the gap between two plates, and the plates are pulled to both sides. The viscosity of the polyurethane adhesive is calculated by pulling. However, it is difficult to intuitively and accurately observe the tension applied to the polyurethane adhesive during the process of applying the tension, which affects the accuracy of the experiment. Utility Model Content

[0004] The utility model aims to solve the problem that in the prior art, it is necessary to perform experimental testing on polyurethane adhesives to test the viscosity of polyurethane adhesives. During the testing process, the polyurethane adhesive is bonded and arranged at the gap between two plates, and the plates are pulled to both sides. The viscosity of the polyurethane adhesive is calculated by pulling. However, it is difficult to intuitively and accurately observe the pulling force applied to the polyurethane adhesive during the process of applying the pulling force, which affects the accuracy of the experiment. A polyurethane adhesive synthesis experimental testing device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A polyurethane adhesive synthesis experimental detection device comprises a workbench, a bottom plate is fixedly connected to the side wall of the workbench, a pull plate is fitted on the side wall of the bottom plate, a pull cylinder is fixedly connected to the side wall of the pull plate, a tension spring is fixedly connected to the inner wall of the pull cylinder, a piston plate is fixedly connected to the end of the tension spring, a pull rod is fixedly connected to the end of the piston plate away from the tension spring, the pull rod extends to the outside of the pull cylinder, a strip opening is provided on the inner wall of the top end of the pull cylinder, a pointer is fixedly connected to the top end of the piston plate, the pointer is slidably arranged on the inner wall of the pull cylinder located at the strip opening, and scale lines are provided on the inner wall of the pull cylinder located at the strip opening.

[0007] Preferably, a fixing plate is fixedly connected to the upper surface of the workbench, a threaded ring is fixedly connected to the interior of the fixing plate, a screw is threadedly connected to the inner wall of the threaded ring, and one end of the screw away from the threaded ring is rotatably connected to the pull rod.

[0008] Preferably, one end of the screw rod relative to the threaded ring extends to the outside of the fixing plate and is fixedly connected with a handle.

[0009] Preferably, a sealing ring is fixedly connected to the inner wall of the pull cylinder, and the inner wall of the sealing ring is fitted on the rod wall of the pull rod.

[0010] Preferably, an elastic rod is fixedly connected to the side wall of the fixing plate, and a retaining ring is fixedly connected to one end of the elastic rod facing away from the fixing plate.

[0011] Preferably, the retaining ring is sleeved on the rod wall of the screw rod, and the inner wall of the retaining ring is configured as an annular arc surface and is slidably disposed on the rod wall of the screw rod.

[0012] Compared with the prior art, the utility model provides a polyurethane adhesive synthesis experimental detection device, which has the following beneficial effects:

[0013] 1. The polyurethane adhesive synthesis experimental detection device places the polyurethane adhesive in the gap between the base plate and the pull plate, rotates the handle to drive the screw to pull the pull rod to move, pulls the piston plate to move the tension spring to stretch the pull cylinder, and causes the pull cylinder to apply tension to the pull plate. The movement of the piston plate drives the pointer to move along the inner wall of the strip mouth and slide along the surface of the scale line. The change of the tension can be visually seen. According to the different pressure tensions, the gap size between the base plate and the pull plate is observed, and the viscosity of the polyurethane adhesive can be calculated and judged.

[0014] 2. The polyurethane adhesive synthesis experimental detection device drives the screw to rotate and move and pull the pull rod to move by continuously turning the handle, adjusts the position of the piston plate, and makes the tension spring continuously stretch to increase the tension, and adjusts the tension according to the use requirements.

[0015] 3. The polyurethane adhesive synthesis experimental detection device can apply excessive pulling force, which causes the polyurethane adhesive to fail to adhere to the bottom plate and the pull plate, and the pull plate is separated from the bottom plate. The tension spring quickly resets, causing the pull cylinder to move quickly to the right and hit the side wall of the retaining ring. The pull cylinder can be buffered and protected to prevent damage when it moves. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a polyurethane adhesive synthesis experimental detection device proposed by the utility model;

[0017] Figure 2 for Figure 1A schematic diagram of the structure of the local A part;

[0018] Figure 3 for Figure 2 Structural stereogram of the middle piston plate.

[0019] In the figure: 1 workbench, 2 bottom plate, 3 pull plate, 4 pull cylinder, 5 tension spring, 6 piston plate, 7 pull rod, 8 pointer, 9 scale line, 10 fixed plate, 11 threaded ring, 12 screw rod, 13 handle, 14 sealing ring, 15 elastic rod, 16 retaining ring. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] Reference Figures 1-3 A polyurethane adhesive synthesis experimental detection device comprises a workbench 1, a bottom plate 2 is fixedly connected to the side wall of the workbench 1, a pulling plate 3 is fitted on the side wall of the bottom plate 2, a pulling cylinder 4 is fixedly connected to the side wall of the pulling plate 3, a tension spring 5 is fixedly connected to the inner wall of the pulling cylinder 4, a piston plate 6 is fixedly connected to the end of the tension spring 5, a pulling rod 7 is fixedly connected to the end of the piston plate 6 away from the tension spring 5, the pulling rod 7 extends to the outside of the pulling cylinder 4, a strip-shaped opening is opened on the inner wall of the top end of the pulling cylinder 4, a pointer 8 is fixedly connected to the top end of the piston plate 6, the pointer 8 is slidably arranged on the inner wall of the pulling cylinder 4 located at the strip-shaped opening, and a scale line 9 is provided on the inner wall of the pulling cylinder 4 located at the strip-shaped opening.

[0022] A fixing plate 10 is fixedly connected to the upper surface of the workbench 1, a threaded ring 11 is fixedly connected to the interior of the fixing plate 10, a screw 12 is threadedly connected to the inner wall of the threaded ring 11, one end of the screw 12 facing away from the threaded ring 11 is rotatably connected to the pull rod 7, and one end of the screw 12 relative to the threaded ring 11 extends to the outside of the fixing plate 10 and is fixedly connected to a handle 13.

[0023] When in use, the polyurethane adhesive is placed in the gap between the bottom plate 2 and the pull plate 3, and then the bottom plate 2 and the pull plate 3 are fitted together. Turning the handle 13 can drive the screw 12 to rotate and move along the inner wall of the threaded ring 11, and the pull rod 7 can be pulled to move. The movement of the pull rod 7 can pull the piston plate 6 to move, so that the tension spring 5 is stretched to apply tension to the pull cylinder 4, and the pull cylinder 4 can apply tension to the pull plate 3. The polyurethane adhesive adheres the bottom plate 2 and the pull plate 3 together, and the movement of the piston plate 6 can drive the pointer 8 to move along the inner wall of the strip mouth and slide along the surface of the scale line 9, and the change of the tension can be intuitively seen. Continuously turning the handle 13 drives the screw 12 to rotate and move and pulls the pull rod 7 to move, and the position of the piston plate 6 can be adjusted, so that the tension spring 5 is continuously stretched to increase the tension, and the tension can be adjusted according to the use requirements. The gap size between the bottom plate 2 and the pull plate 3 is observed according to the different pressure tensions, and the viscosity of the polyurethane adhesive can be calculated and judged.

[0024] In order to provide a certain buffer protection treatment to the pull tube 4, such as Figures 1-3 As shown, the inner wall of the pull tube 4 is fixedly connected with a sealing ring 14, the inner wall of the sealing ring 14 is fitted on the rod wall of the pull rod 7, the side wall of the fixed plate 10 is fixedly connected with an elastic rod 15, the end of the elastic rod 15 facing away from the fixed plate 10 is fixedly connected with a retaining ring 16, the retaining ring 16 is sleeved on the rod wall of the screw rod 12, the inner wall of the retaining ring 16 is set as an annular arc surface and is slidably set on the rod wall of the screw rod 12.

[0025] The sealing ring 14 can improve the sealing performance of the pull rod 7 inside the pull tube 4, and the elastic rod 15 can support the retaining ring 16. When the applied pulling force is too large, the polyurethane adhesive cannot adhere to the bottom plate 2 and the pull plate 3, and the pull plate 3 is separated from the bottom plate 2. The tension spring 5 quickly resets, causing the pull tube 4 to move quickly to the right and hit the side wall of the retaining ring 16. The pull tube 4 can be provided with a certain buffering protection treatment to prevent the pull tube 4 from being damaged when moving. The inner wall of the retaining ring 16 is set to an annular arc surface and is slidably set on the rod wall of the screw rod 12, so as not to cause damage to the screw rod 12 during buffering displacement.

[0026] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A polyurethane adhesive synthesis experimental detection device, comprising a workbench (1), characterized in that: The side wall of the workbench (1) is fixedly connected to a bottom plate (2), the side wall of the bottom plate (2) is fitted with a pull plate (3), the side wall of the pull plate (3) is fixedly connected to a pull cylinder (4), the inner wall of the pull cylinder (4) is fixedly connected to a tension spring (5), the end of the tension spring (5) is fixedly connected to a piston plate (6), the end of the piston plate (6) away from the tension spring (5) is fixedly connected to a pull rod (7), the pull rod (7) extends to the outside of the pull cylinder (4), the top inner wall of the pull cylinder (4) is provided with a strip opening, the top of the piston plate (6) is fixedly connected to a pointer (8), the pointer (8) is slidably arranged on the inner wall of the pull cylinder (4) located at the strip opening, and the inner wall of the pull cylinder (4) located at the strip opening is provided with a scale line (9).

2. A polyurethane adhesive synthesis experimental detection device according to claim 1, characterized in that: A fixing plate (10) is fixedly connected to the upper surface of the workbench (1), a threaded ring (11) is fixedly connected to the interior of the fixing plate (10), a screw rod (12) is threadedly connected to the inner wall of the threaded ring (11), and one end of the screw rod (12) facing away from the threaded ring (11) is rotatably connected to the pull rod (7).

3. A polyurethane adhesive synthesis experimental detection device according to claim 2, characterized in that: One end of the screw rod (12) relative to the threaded ring (11) extends to the outside of the fixing plate (10) and is fixedly connected to a handle (13).

4. A polyurethane adhesive synthesis experimental detection device according to claim 1, characterized in that: The inner wall of the pull tube (4) is fixedly connected with a sealing ring (14), and the inner wall of the sealing ring (14) is arranged in close contact with the rod wall of the pull rod (7).

5. A polyurethane adhesive synthesis experimental detection device according to claim 2, characterized in that: An elastic rod (15) is fixedly connected to the side wall of the fixing plate (10), and a retaining ring (16) is fixedly connected to one end of the elastic rod (15) facing away from the fixing plate (10).

6. A polyurethane adhesive synthesis experimental detection device according to claim 5, characterized in that: The retaining ring (16) is sleeved on the rod wall of the screw rod (12); the inner wall of the retaining ring (16) is arranged as an annular arc surface and is slidably arranged on the rod wall of the screw rod (12).

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