Viscosity detection device for hot melt adhesive

Abstract

The utility model discloses a hot melt adhesive viscosity detection device which comprises a base, the base is connected with an air cylinder through a U-shaped frame, the output end of the air cylinder is connected with a displacement sensor through a top plate, the output end of the displacement sensor is fixedly connected with a T-shaped bottom plate, a detachable mechanism is arranged on the T-shaped bottom plate, and the T-shaped bottom plate is fixedly connected with the base. The detachable mechanism comprises a fixing groove formed in the T-shaped bottom plate, a square groove is formed in the T-shaped bottom plate, moving rods are symmetrically arranged in the square groove, limiting blocks are welded to the moving rods, a fixing rod is arranged in the fixing groove, and limiting grooves are symmetrically formed in the outer surface of the fixing rod. And the bottom end of the fixed rod is connected with the upper sticky plate through a fixed circular plate, a limiting block moves from the interior of a limiting groove to one end of a square groove by moving a movable rod, the fixed circular plate is pulled, and therefore the upper sticky plate is moved out of a T-shaped bottom plate, the detached upper sticky plate is cleaned, and the cleaning efficiency of the upper sticky plate is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field related to hot melt adhesive, and specifically to a viscosity detection device for hot melt adhesive. Background Art

[0002] Hot melt adhesive is a plastic adhesive. Its physical state changes with temperature within a certain temperature range, but its chemical properties remain unchanged. It is non-toxic and odorless and is an environmentally friendly chemical product. Because the product itself is solid, it is easy to package, transport, store, and is solvent-free, pollution-free, and non-toxic. In order to ensure the quality of hot melt adhesive products when developing them, it is necessary to test the viscosity of the hot melt adhesive film. Therefore, a detection device specifically used to detect the viscosity of the hot melt adhesive film is required for testing.

[0003] For example, the application number is CN202122467977.2. The utility model discloses a hot melt adhesive film viscosity test device, including a device bottom plate, a mounting bracket is fixedly installed on the upper surface of the device bottom plate, and fixed foot pads are fixedly installed on the lower surface of the device bottom plate near the four corners, and a control panel is fixedly installed on the inner side surface of the mounting bracket. The hot melt adhesive film viscosity test device of the utility model can accurately measure the viscosity of the hot melt adhesive film through a measuring mechanism. When the tension spring is stretched by the adhesive force of the hot melt adhesive film, the displacement sensor can accurately detect the current spring stretching length. According to the relationship between the deformation coefficient of the spring and the spring stretching length, the viscosity state of the hot melt adhesive film can be accurately detected. And through the cooperation of the cutting knife set and the lower adhesive plate, the excess hot melt adhesive film can be conveniently cut off, which is more convenient to operate and reduces the impact of the experiment.

[0004] Based on the search of the above patent and in combination with the devices in the prior art, it was found that when the above device performs viscosity detection on the hot melt adhesive film, the hot melt adhesive film after the viscosity detection is respectively adhered to the upper adhesive plate and the lower adhesive plate. The patent cannot clean the hot melt adhesive on the upper adhesive plate and the lower adhesive plate, thereby affecting the subsequent use of the viscosity detection device. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model proposes a hot melt adhesive viscosity detection device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hot melt adhesive viscosity detection device, comprising a base, a lower adhesive plate is provided at the center of the base, a U-shaped frame is welded on the base, a cleaning mechanism is installed on the U-shaped frame, a cylinder is fixedly connected to the top center of the U-shaped frame, the output end of the cylinder is connected to the top plate by bolts, a displacement sensor is fixedly connected to the bottom end of the top plate, the output end of the displacement sensor is connected to the T-shaped bottom plate by bolts, a detachable mechanism is provided on the T-shaped bottom plate, the detachable mechanism includes a fixing groove provided on the bottom end of the T-shaped bottom plate, a square groove is provided inside the T-shaped bottom plate, one end of the fixing groove passes through the square groove, a moving rod is symmetrically provided inside the square groove, a limiting block is fixedly connected to the moving rod, and a second spring is sleeved on both ends of the moving rod away from the limiting block, a fixing rod is provided inside the fixing groove, and limiting grooves corresponding to the limiting block are provided on both ends of the outer surface of the fixing rod, the bottom end of the fixing rod is welded to a fixed circular plate, and an upper adhesive plate is fixedly connected to the bottom end of the fixed circular plate.

[0008] Furthermore, in order to clean the hot melt adhesive on the lower sticky plate, the cleaning mechanism includes a guide rod symmetrically welded inside the U-shaped frame, a sliding block is slidably connected to the guide rod, an electric push rod is fixedly connected to one end of the outer surface of the sliding block, the bottom end of the electric push rod is welded to one end of the inner surface of the U-shaped frame, and a scraper is fixedly connected to the bottom end of the sliding block.

[0009] Furthermore, in order to measure the viscosity of the hot melt adhesive, a first spring is sleeved on the outer surface of the displacement sensor, and two ends of the first spring are fixedly connected to the top plate and the T-shaped bottom plate respectively.

[0010] Furthermore, in order to collect the hot melt adhesive on the lower adhesive plate, a water tank is fixedly connected to the center of the base, and the lower adhesive plate is fixed to the water tank through a support block.

[0011] Furthermore, in order to heat the hot melt adhesive on the lower adhesive plate, a heating chamber is provided inside the lower adhesive plate, and an electric heating wire is provided inside the heating chamber.

[0012] Furthermore, in order to facilitate personnel control, a controller is provided on one side of the outer surface of the base, and the controller is electrically connected to the cylinder, the displacement sensor, the electric heating wire and the electric push rod.

[0013] Furthermore, in order to check the viscosity of the hot melt adhesive, a display is provided on the end of the outer surface of the base away from the controller, and the display is electrically connected to the controller.

[0014] Furthermore, in order to facilitate the movement of the moving rod, both ends of the moving rod extend outside the T-shaped bottom plate and are connected to the baffle plate by bolts.

[0015] Beneficial effects of the utility model:

[0016] 1. By pressing the baffle, the moving rod moves toward one end of the T-shaped bottom plate. The movement of the moving rod drives the limit block to move synchronously, so that the limit block moves from the limit groove to one end of the square groove. By pulling the fixed circular plate, the fixed rod is taken out of the fixed groove, and the upper sticky plate is further moved out of the T-shaped bottom plate, so that the disassembled upper sticky plate can be cleaned, which further improves the cleaning efficiency of the upper sticky plate and enhances the practicality of the device.

[0017] 2. The controller heats the electric heating wire to melt the hot melt adhesive on the lower sticky plate again. At this time, the electric push rod extends and retracts itself, so that the sliding block slides back and forth on the guide rod, thereby driving the scraper to scrape the hot melt adhesive on the lower sticky plate. The scraped hot melt adhesive flows into the water tank for collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a structural schematic diagram of a hot melt adhesive viscosity detection device according to an embodiment of the utility model;

[0020] Figure 2 is a cross-sectional view of a hot melt adhesive viscosity detection device according to an embodiment of the utility model;

[0021] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0022] Figure 4 yes Figure 2 Enlarged view of point B in the middle;

[0023] Figure 5 It is a cross-sectional view of a lower adhesive plate in a hot melt adhesive viscosity detection device according to an embodiment of the utility model;

[0024] Figure 6 It is a partial cross-sectional view of a detachable mechanism in a hot melt adhesive viscosity detection device according to an embodiment of the utility model;

[0025] Figure 7 It is a cross-sectional view of a T-shaped bottom plate in a hot melt adhesive viscosity detection device according to an embodiment of the utility model.

[0026] In the figure:

[0027] 1. Base; 2. U-shaped frame; 3. Cylinder; 4. Top plate; 5. Displacement sensor; 6. First spring; 7. T-shaped bottom plate; 8. Fixed groove; 9. Square groove; 10. Moving rod; 11. Baffle; 12. Limit block; 13. Second spring; 14. Fixed rod; 15. Limit groove; 16. Fixed circular plate; 17. Upper sticky plate; 18. Water tank; 19. Support block; 20. Lower sticky plate; 21. Heating chamber; 22. Electric heating wire; 23. Guide rod; 24. Sliding block; 25. Scraper; 26. Electric push rod; 27. Controller; 28. Display. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention clearly understood, the present invention is further described below in conjunction with specific implementation methods.

[0029] See also Figure 1-Figure 3 , Figure 6 and Figure 7The utility model provides a technical solution: a hot melt adhesive viscosity detection device, including a base 1 for carrying the device, a controller 27 is provided on one side of the outer surface of the base 1, and the controller 27 is electrically connected to a power supply. In order to check the viscosity of the hot melt adhesive, a display 28 is provided on the end of the outer surface of the base 1 away from the controller 27, and the display 28 is electrically connected to the controller 27, and the power supply provides the required power. A U-shaped frame 2 is welded on the base 1, and a cylinder 3 is fixedly connected to the center of the top end of the U-shaped frame 2. The cylinder 3 is electrically connected to the controller 27, and the power supply provides the required power. The output of the cylinder 3 The end is connected to the top plate 4 by bolts, and a displacement sensor 5 is fixedly connected to the bottom end of the top plate 4. The displacement sensor 5 is electrically connected to the controller 27, and the power supply provides the required power. The output end of the displacement sensor 5 is connected to the T-type bottom plate 7 by bolts. The displacement sensor 5 model is KPM. A first spring 6 is sleeved on the outer surface of the displacement sensor 5. The first spring 6 has a certain elasticity. The two ends of the first spring 6 are respectively fixedly connected to the top plate 4 and the T-type bottom plate 7. A detachable mechanism is provided on the T-type bottom plate 7. The detachable mechanism includes a fixing groove 8 opened on the bottom end of the T-type bottom plate 7, and a square is opened inside the T-type bottom plate 7. Slot 9, one end of the fixed slot 8 passes through the square slot 9, and a moving rod 10 is symmetrically arranged inside the square slot 9. Both ends of the moving rod 10 extend to the outside of the T-shaped bottom plate 7 and are connected to the baffle 11 by bolts. A limited block 12 is fixedly connected to the moving rod 10, and a second spring 13 is sleeved on both ends of the moving rod 10 away from the limited block 12. The second spring 13 has a certain elasticity. A fixed rod 14 is arranged inside the fixed slot 8, and both ends of the outer surface of the fixed rod 14 are provided with a limited slot 15 corresponding to the limited block 12. The length of the limited block 12 is much larger than the length of the limited slot 15 to prevent the fixed rod 14 from rotating. The fixed rod 14 The bottom end is welded on the fixed circular plate 16, and the upper adhesive plate 17 is fixedly connected to the bottom end of the fixed circular plate 16. By pressing the baffle 11, the movable rod 10 is moved toward one end of the T-shaped bottom plate 7. The movement of the movable rod 10 drives the limit block 12 to move synchronously, so that the limit block 12 moves from the limit groove 15 to one end of the square groove 9. By pulling the fixed circular plate 16, the fixed rod 14 is taken out of the fixed groove 8, and the upper adhesive plate 17 is further moved out of the T-shaped bottom plate 7, so that the disassembled upper adhesive plate 17 can be cleaned, and the cleaning efficiency of the upper adhesive plate 17 is further improved, thereby enhancing the practicality of the device.

[0030] See also Figure 1 , Figure 2 , Figure 4 and Figure 5A water tank 18 is fixedly connected at the center of the base 1, a support leg is welded at the center of the water tank 18, a lower adhesive plate 20 is welded on the support leg, and the outer surface of the lower adhesive plate 20 is fixed to the water tank 18 through a support block 19, a heating chamber 21 is opened inside the lower adhesive plate 20, an electric heating wire 22 is arranged inside the heating chamber 21, the electric heating wire 22 is electrically connected to the controller 27, and the required power is provided by the power supply, a cleaning mechanism is installed on the U-shaped frame 2, and the cleaning mechanism includes a guide rod 23 symmetrically welded inside the U-shaped frame 2, a sliding block 24 is slidably connected to the guide rod 23, and a fixed outer surface of the sliding block 24 is fixed at one end. The output end of the electric push rod 26 is fixedly connected, the electric push rod 26 is electrically connected to the controller 27, and the required electric energy is provided by the power supply. The bottom end of the electric push rod 26 is welded to one end of the inner surface of the U-shaped frame 2, and the bottom end of the sliding block 24 is fixedly connected to the scraper 25. The electric heating wire 22 is heated by the controller 27, so that the hot melt adhesive on the lower adhesive plate 20 is melted again. At this time, the electric push rod 26 itself retracts and contracts, so that the sliding block 24 slides back and forth on the guide rod 23, thereby driving the scraper 25 to scrape the hot melt adhesive on the lower adhesive plate 20, and the scraped hot melt adhesive flows into the water tank 18 for collection.

[0031] Working principle:

[0032] When in use, first, place the hot melt adhesive film on the lower adhesive plate 20, and then control the cylinder 3 to work through the controller 27, and place the upper adhesive plate 17 directly above the lower adhesive plate 20. The controller 27 controls the electric heating wire 22 to heat, so that the hot melt adhesive film between the upper adhesive plate 17 and the lower adhesive plate 20 is melted. After cooling and bonding, the cylinder 3 is controlled to shrink. At this time, the first spring 6 will be stretched under the action of the viscosity of the hot melt adhesive film, and the displacement sensor 5 calculates the stretching distance. The product of the deformation coefficient of the first spring 6 and the displacement distance detected by the displacement sensor 5 is the current viscosity of the hot melt adhesive film. The test results are calculated by the controller 27 and transmitted to the display 28 for display. When the upper adhesive plate 17 and the lower adhesive plate 20 are pulled apart, the display 28 displays the maximum value in the above process, thereby achieving the adhesion of the hot melt adhesive film. The test shows that when the upper sticky plate 17 is to be cleaned, the baffle 11 is pressed to move the moving rod 10 toward one end of the T-shaped bottom plate 7, and the movement of the moving rod 10 drives the limit block 12 to move synchronously, so that the limit block 12 moves from the limit groove 15 to one end of the square groove 9, and the fixed circular plate 16 is pulled out to remove the fixed rod 14 from the fixed groove 8, and the upper sticky plate 17 is further moved out of the T-shaped bottom plate 7, so that the disassembled upper sticky plate 17 is cleaned. When the lower sticky plate 20 is to be cleaned, the electric heating wire 22 is heated by the controller 27, so that the hot melt adhesive on the lower sticky plate 20 is melted again. At this time, the electric push rod 26 retracts and contracts itself, so that the sliding block 24 slides back and forth on the guide rod 23, thereby driving the scraper 25 to scrape the hot melt adhesive on the lower sticky plate 20, and the scraped hot melt adhesive flows into the water tank 18 for collection.

[0033] Although this specification is described in accordance with the implementation modes, not every implementation mode includes only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A hot melt adhesive viscosity detection device, comprising a base (1), characterized in that: A lower adhesive plate (20) is provided at the center of the base (1), a U-shaped frame (2) is welded on the base (1), a cleaning mechanism is installed on the U-shaped frame (2), a cylinder (3) is fixedly connected to the center of the top end of the U-shaped frame (2), the output end of the cylinder (3) is connected to the top plate (4) by bolts, a displacement sensor (5) is fixedly connected to the bottom end of the top plate (4), the output end of the displacement sensor (5) is connected to the T-shaped bottom plate (7) by bolts, and a detachable mechanism is provided on the T-shaped bottom plate (7), the detachable mechanism includes a fixing groove (8) provided on the bottom end of the T-shaped bottom plate (7), and the inside of the T-shaped bottom plate (7) is fixedly connected to the top plate (4). A square groove (9) is provided in the part, one end of the fixed groove (8) passes through the square groove (9), a moving rod (10) is symmetrically provided inside the square groove (9), a limiting block (12) is fixedly connected to the moving rod (10), and a second spring (13) is sleeved on both ends of the moving rod (10) away from the limiting block (12), a fixing rod (14) is provided inside the fixed groove (8), and limiting grooves (15) corresponding to the limiting block (12) are provided on both ends of the outer surface of the fixing rod (14), and the bottom end of the fixing rod (14) is welded to a fixing circular plate (16), and an upper adhesive plate (17) is fixedly connected to the bottom end of the fixing circular plate (16).

2. A hot melt adhesive viscosity detection device according to claim 1, characterized in that: The cleaning mechanism comprises a guide rod (23) symmetrically welded inside the U-shaped frame (2); a sliding block (24) is slidably connected to the guide rod (23); an electric push rod (26) is fixedly connected to one end of the outer surface of the sliding block (24); the bottom end of the electric push rod (26) is welded to one end of the inner surface of the U-shaped frame (2); and a scraper (25) is fixedly connected to the bottom end of the sliding block (24).

3. The hot melt adhesive viscosity detection device according to claim 1, characterized in that: A first spring (6) is sleeved on the outer surface of the displacement sensor (5), and two ends of the first spring (6) are respectively fixedly connected to the top plate (4) and the T-shaped bottom plate (7).

4. The hot melt adhesive viscosity detection device according to claim 1, characterized in that: A water tank (18) is fixedly connected to the center of the base (1), and the lower adhesive plate (20) is fixed to the water tank (18) via a support block (19).

5. A hot melt adhesive viscosity detection device according to claim 2, characterized in that: A heating chamber (21) is provided inside the lower adhesive plate (20), and an electric heating wire (22) is provided inside the heating chamber (21).

6. A hot melt adhesive viscosity detection device according to claim 5, characterized in that: A controller (27) is provided on one side of the outer surface of the base (1), and the controller (27) is electrically connected to the cylinder (3), the displacement sensor (5), the electric heating wire (22) and the electric push rod (26).

7. A hot melt adhesive viscosity detection device according to claim 6, characterized in that: A display (28) is provided on an end of the outer surface of the base (1) away from the controller (27), and the display (28) is electrically connected to the controller (27).

8. The hot melt adhesive viscosity detection device according to claim 1, characterized in that: Both ends of the moving rod (10) extend outside the T-shaped bottom plate (7) and are connected to the baffle plate (11) via bolts.

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