Device for detecting water absorbability of packaging paperboard

Abstract

The utility model provides a water absorption detection device for a packaging paperboard, which relates to the technical field of water absorption detection of packaging paperboards and comprises an equipment cabinet, a detection box arranged at the top of the equipment cabinet, a box body arranged in the equipment cabinet, a water receiving box arranged on one side of the detection box, and a water scraping frame fixedly mounted at the top of the water receiving box. Two detection modes of soaking and dripping can be performed on the detection paperboard through the detection assembly, so that two conditions of long-time and short-time contact between the detection paperboard and water can be simulated, and the performance of the packaging paper in different humidity environments can be more accurately reflected through combination of the two conditions, and secondly, water for detection can be conveyed and discharged through the conveying assembly, so that the detection efficiency is improved. Manual water adding and water pouring are not needed, more time and labor are saved, and the practical effect of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of packaging paper water absorption testing technology, specifically a packaging paperboard water absorption testing device. Background Technology

[0002] In the packaging industry, the quality of packaging paperboard directly affects the protective effect and service life of products. Among them, the water absorption performance of paperboard is a key indicator, which is directly related to the stability and durability of the packaged goods in humid environments. Traditional water absorption testing methods mostly use the Cobb absorbency test. However, in actual application environments, paperboard may experience different conditions, from short-term contact with a small amount of water to long-term exposure to high humidity environments. Existing testing devices are difficult to effectively simulate these complex usage conditions. At the same time, the traditional testing method requires manual operation for water injection and drainage, which is complicated and cumbersome, affecting the accuracy and repeatability of the test. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a packaging paperboard water absorption detection device. The detection component can perform two detection methods on the test paperboard: soaking and dripping water, to simulate two situations: long-term and short-term contact between the test paperboard and water. The combination of the two methods can more accurately reflect the performance of the packaging paperboard under different humidity environments. Secondly, the conveying component can transport and discharge the water used for testing without the need for manual water addition and pouring, which saves time and effort and improves the practical effect of the device.

[0004] The technical problem to be solved by this utility model is achieved by the following technical solution:

[0005] A device for testing the water absorption of packaging paperboard includes: an equipment cabinet, a testing box on the top of the equipment cabinet, a box body inside the equipment cabinet, a water collection box on one side of the testing box, and a scraper fixedly installed on the top of the water collection box;

[0006] The detection component, located inside the detection box, is used to detect the water absorbency of the packaging cardboard. The detection component includes: a mounting frame, a water box, an electric push rod, a drip tube, a clamp, a water level sensor, and a grid plate.

[0007] A conveying assembly, located inside the equipment cabinet, is used to convey and discharge water for testing. The conveying assembly includes: a water tank, a wastewater tank, an electromagnetic reversing valve a, a pumping pipe, a supply pipe, an electromagnetic reversing valve b, and a drain pipe.

[0008] Furthermore, each of the two cavities of the detection box is equipped with a mounting bracket at its bottom, and a water box is provided below each mounting bracket. An electric push rod and a drip tube are installed on the top of each of the two mounting brackets. A clamp is fixedly installed at the output end of the bottom of the electric push rod. A water level sensor is fixedly installed on the inner wall of the water box below the electric push rod. A grid plate is provided at the bottom of the other water box.

[0009] Furthermore, each of the two cavities of the housing is equipped with a water tank and a wastewater tank respectively. An electromagnetic reversing valve a is fixedly installed on the top of the housing, and a water suction pipe is fixedly installed at the bottom of the electromagnetic reversing valve a, extending into the water tank. Two water supply pipes are fixedly installed on the top of the electromagnetic reversing valve a. An electromagnetic reversing valve b is fixedly installed at the bottom of the water box below the electric push rod. Drain pipes are fixedly installed at the output end of the bottom of the electromagnetic reversing valve b, the bottom of the water receiving box, and the bottom of another water box, respectively. The bottom ends of the two drain pipes are respectively connected to the inside of the wastewater tank.

[0010] Furthermore, a gantry frame is fixedly installed on the top of the wiper frame, and conveying rollers are rotatably connected to the inner walls of the gantry frame on opposite sides near the bottom. A drive motor is fixedly installed on one side of the gantry frame, and one end of the drive shaft of the drive motor is connected to the rotation shaft of the conveying roller. A pressure roller is provided above the conveying roller.

[0011] Furthermore, the gantry frame has movable grooves on its opposite inner walls, and movable blocks are slidably connected to the inner walls of the two movable grooves. Springs are connected between the tops of the two movable blocks and the tops of the movable grooves. The rotating shafts at opposite ends of the pressure roller are rotatably connected to the two movable blocks.

[0012] Furthermore, one of the water supply pipes is connected to the input end of the electromagnetic reversing valve b, and the other water supply pipe is connected to the top of the drip tube.

[0013] Furthermore, a booster pump is provided on one side of the tank, and the output end of the booster pump is connected to the inside of the water tank. A vent is provided on one side of the wastewater tank, and a filter screen is fixedly installed inside the vent.

[0014] The beneficial effects of this utility model are:

[0015] The advantages of this invention are that the detection component can perform two detection methods on the test paperboard: soaking and dripping, to simulate two situations where the test paperboard is in contact with water for a long time and a short time. The combination of the two methods can more accurately reflect the performance of the packaging paper under different humidity environments. Secondly, the conveying component can transport and discharge the water used for testing without the need for manual water addition and pouring, which saves time and effort and improves the practical effect of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0017] Figure 2 This is a cross-sectional view of the overall structure of this utility model.

[0018] Figure 3 This is a schematic diagram of the mounting bracket structure of this utility model.

[0019] Figure 4 This is a schematic diagram of the conveyor roller structure of this utility model.

[0020] Figure 5 For the present utility model Figure 2 Enlarged view of point A in the middle.

[0021] Figure 6 For the present utility model Figure 2 Enlarged view of section B in the middle.

[0022] Figures 1-6 In the middle: 1. Equipment cabinet; 11. Testing box; 12. Box body; 13. Water receiving box; 14. Squeegee; 2. Mounting frame; 21. Water box; 22. Electric push rod; 23. Drip tube; 24. Clamp; 25. Water level sensor; 26. Mesh plate; 3. Water tank; 31. Wastewater tank; 32. Solenoid directional valve a; 33. Pumping pipe; 34. Water supply pipe; 35. Solenoid directional valve b; 36. Drain pipe; 4. Gantry frame; 41. Conveying roller; 42. Drive motor; 43. Pressure roller; 44. Moving trough; 45. Moving block; 46. Spring; 5. Booster pump; 51. Vent; 52. Filter screen. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] Example 1

[0026] like Figures 1-6As shown, a packaging paperboard water absorption testing device includes: an equipment cabinet 1, a testing box 11 on the top of the equipment cabinet 1, a box body 12 inside the equipment cabinet 1, a water collection box 13 on one side of the testing box 11, and a scraper 14 fixedly installed on the top of the water collection box 13; a testing component, which is located inside the testing box 11 and is used to test the water absorption of the packaging paperboard; and a conveying component, which is located inside the equipment cabinet 1 and is used to convey and discharge the water used for testing.

[0027] When testing the water absorption of packaging paperboard, the paperboard is cut to a suitable size and then tested using a testing component. The test can be conducted by immersion or dripping. The water absorption is calculated by weighing and comparing the original weight. These two testing methods simulate both prolonged and brief contact with water, and combining them more accurately reflects the paperboard's performance under different humidity conditions. A conveying component can transport and discharge the water used for testing, eliminating the need for manual water addition and removal, thus saving time and effort and improving practicality.

[0028] The top of the wiper frame 14 is fixedly mounted with a gantry frame 4. Conveyor rollers 41 are rotatably connected to the inner walls of the gantry frame 4 on opposite sides near the bottom. A drive motor 42 is fixedly mounted on one side of the gantry frame 4. One end of the drive shaft of the drive motor 42 is connected to the rotation shaft of the conveyor roller 41. A pressure roller 43 is provided above the conveyor roller 41. Moving grooves 44 are respectively opened on the inner walls of opposite sides of the gantry frame 4. Moving blocks 45 are slidably connected to the inner walls of the two moving grooves 44. Springs 46 are connected between the top of the two moving blocks 45 and the top of the moving grooves 44. The rotation shafts of the pressure rollers 43 at opposite ends are rotatably connected to the two moving blocks 45 respectively.

[0029] After the packaging paperboard is inspected, it is placed between the conveyor roller 41 and the pressure roller 43. Then, the drive motor 42 is started to drive the conveyor roller 41 to rotate. The packaging paperboard is conveyed to one side through the conveyor roller 41. With the help of the spring 46 and the moving block 45, pressure is applied to the pressure roller 43 to squeeze out the extra water from the packaging paperboard. The squeezed water flows into the water collection box 13 and is collected to facilitate the weighing of the packaging paperboard after it has absorbed water.

[0030] Example 2

[0031] Based on Embodiment 1, the detection components include: mounting bracket 2, water box 21, electric push rod 22, drip tube 23, clamp 24, water level sensor 25, and grid plate 26. The bottom of both cavities of the detection box 11 is provided with mounting bracket 2, and water box 21 is provided below each mounting bracket 2. Electric push rod 22 and drip tube 23 are installed on the top of both mounting brackets 2. Clamp 24 is fixedly installed at the output end of the bottom of electric push rod 22. Water level sensor 25 is fixedly installed on the inner wall of water box 21 below electric push rod 22. Grid plate 26 is provided at the bottom of the other water box 21.

[0032] Two test cardboard pieces of the same size and shape are cut from the packaging cardboard. One test cardboard is clamped and fixed by the clamp 24, and the other test cardboard is placed on the grid plate 26. Then, the electric push rod 22 is activated to push the test cardboard downward, so that the lower part of the test cardboard is immersed in the water box 21 to simulate a long-term water contact. The water level sensor 25 can detect the water level change in the water box 21 and open the throttle valve on the drip tube 23 to let water droplets fall. The size of the water droplets can be controlled by the throttle valve. The dripping water droplets fall on the test cardboard on the grid plate 26 to simulate a brief contact with water. The overflowing water flows through the grid plate 26 into the water box 21. After a period of time, the electric push rod 22 is retracted to lift the clamp 24 and the test cardboard, and the throttle valve on the drip tube 23 is closed. Then, the two test cardboard pieces are removed to perform immersion and drip testing on the same piece of packaging cardboard.

[0033] Example 3

[0034] Based on Embodiment 1, the conveying assembly includes: a water tank 3, a wastewater tank 31, an electromagnetic reversing valve a32, a pumping pipe 33, a water supply pipe 34, an electromagnetic reversing valve b35, and a drain pipe 36. The two cavities of the housing 12 each contain a water tank 3 and a wastewater tank 31. An electromagnetic reversing valve a32 is fixedly installed on the top of the housing 12. A pumping pipe 33 is fixedly installed at the bottom of the electromagnetic reversing valve a32, extending into the water tank 3. Two water supply pipes 34 are fixedly installed on the top of the electromagnetic reversing valve a32. An electromagnetic reversing valve b35 is fixedly installed at the bottom of the water box 21 below the electric push rod 22. Drain pipes 36 are fixedly installed at the output end of the electromagnetic reversing valve b35, the bottom of the water receiving box 13, and the bottom of the other water box 21. The bottom ends of the two drain pipes 36 are connected to the inside of the wastewater tank 31. One water supply pipe 34 is connected to the input end of the electromagnetic reversing valve b35, and the other water supply pipe 34 is connected to the top of the drip cylinder 23.

[0035] Among them, a booster pump 5 is provided on one side of the tank 12, and the output end of the booster pump 5 is connected to the inside of the water tank 3. A vent 51 is provided on one side of the wastewater tank 31, and a filter screen 52 is fixedly installed inside the vent 51.

[0036] When water needs to be added to the water collection box 13, the booster pump 5 starts to pressurize the water tank 3, controlling the pressure within a suitable range, so that the water in the water tank 3 enters the water pumping pipe 33. Then, the solenoid reversing valve a32 starts to connect the water pumping pipe 33 with the water delivery pipe 34 connected to the solenoid reversing valves a32 and b35. At the same time, the solenoid reversing valve b35 starts to connect the water delivery pipe 34 with the water collection box 13, and water flows into the water collection box 13. When the water level sensor 25 detects that the water level has reached the designated water level, the solenoid reversing valves a32 and b35 return to their original positions, disconnecting the connection between the water pumping pipe 33 and the water collection box 13. The solenoid reversing valve a32 then reverses to the other side, connecting the water pumping pipe 33 with another water delivery pipe 34. The water pumping pipe 33 connects with the drip tube 23. The system connects the test water to the drip tube 23. When the throttle valve of the drip tube 23 is opened, water begins to drip. The dripping water is collected in the water box 21. After the soaking and dripping tests are completed, the water in both water boxes 21 needs to be drained. The water dripping into the water box 21 below the drip tube 23 is discharged into the wastewater tank 31 through the drain pipe 36 at the bottom. When the water in the other water box 21 needs to be drained, the electromagnetic reversing valve b35 reverses to connect the drain pipe 36 below with the wastewater tank 31, so that the water in the two water boxes 21 and the water collected by the water receiving box 13 flow back into the wastewater tank 31 through the drain pipe 36. The wastewater tank 31 is connected to the external atmospheric pressure through the vent 51, so that the drain pipe 36 drains smoothly. The filter screen 52 can prevent debris from entering the wastewater tank 31.

[0037] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0038] The above provides a detailed description of a packaging paperboard water absorption testing device provided in the embodiments of this application. Specific examples have been used to illustrate the principle and implementation of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solution and core idea of ​​this application. Those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A device for detecting the water absorbency of packaging paperboard, characterized in that, include: Equipment cabinet (1), the top of the equipment cabinet (1) is provided with a test box (11), the inside of the equipment cabinet (1) is provided with a box body (12), the side of the test box (11) is provided with a water receiving box (13), and a scraper (14) is fixedly installed on the top of the water receiving box (13); The detection component is located inside the detection box (11) and is used to detect the water absorption of the packaging paperboard. The detection component includes: a mounting frame (2), a water box (21), an electric push rod (22), a drip tube (23), a clamp (24), a water level sensor (25), and a grid plate (26). The conveying assembly is located inside the equipment cabinet (1) and is used to convey and discharge water for testing. The conveying assembly includes: a water tank (3), a wastewater tank (31), an electromagnetic reversing valve a (32), a water pumping pipe (33), a water supply pipe (34), an electromagnetic reversing valve b (35), and a drain pipe (36).

2. The packaging paperboard water absorption detection device according to claim 1, characterized in that, The bottom of each of the two cavities of the detection box (11) is provided with a mounting bracket (2), and a water box (21) is provided below each mounting bracket (2). An electric push rod (22) and a drip tube (23) are installed on the top of each of the two mounting brackets (2). A clamp (24) is fixedly installed at the output end of the bottom of the electric push rod (22). A water level sensor (25) is fixedly installed on the inner wall of the water box (21) below the electric push rod (22). A grid plate (26) is provided at the bottom of the other water box (21).

3. The packaging paperboard water absorption detection device according to claim 1, characterized in that, The two cavities of the box (12) are respectively equipped with a water tank (3) and a wastewater tank (31). An electromagnetic reversing valve a (32) is fixedly installed on the top of the box (12). A water pumping pipe (33) is fixedly installed at the bottom of the electromagnetic reversing valve a (32). The water pumping pipe (33) extends into the water tank (3). Two water supply pipes (34) are fixedly installed on the top of the electromagnetic reversing valve a (32). An electromagnetic reversing valve b (35) is fixedly installed at the bottom of the water box (21) below the electric push rod (22). Drain pipes (36) are fixedly installed at the bottom of the output end of the electromagnetic reversing valve b (35), the bottom of the water receiving box (13), and the bottom of the other water box (21). The bottom ends of the two drain pipes (36) are respectively connected to the inside of the wastewater tank (31).

4. The packaging paperboard water absorption detection device according to claim 1, characterized in that, A gantry frame (4) is fixedly installed on the top of the wiper frame (14). Conveying rollers (41) are rotatably connected to the inner walls of the gantry frame (4) on both sides near the bottom. A drive motor (42) is fixedly installed on one side of the gantry frame (4). One end of the drive shaft of the drive motor (42) is connected to the rotating shaft of the conveying roller (41). A pressure roller (43) is provided above the conveying roller (41).

5. The packaging paperboard water absorption detection device according to claim 4, characterized in that, The gantry frame (4) has movable grooves (44) on its inner walls on opposite sides. Movable blocks (45) are slidably connected to the inner walls of the two movable grooves (44). Springs (46) are connected between the top of the two movable blocks (45) and the top of the movable groove (44). The rotating shafts at opposite ends of the pressure roller (43) are rotatably connected to the two movable blocks (45).

6. The packaging paperboard water absorption detection device according to claim 1, characterized in that, One of the water supply pipes (34) is connected to the input end of the electromagnetic reversing valve b (35), and the other water supply pipe (34) is connected to the top of the drip tube (23).

7. The packaging paperboard water absorption detection device according to claim 1, characterized in that, A booster pump (5) is provided on one side of the box (12). The output end of the booster pump (5) is connected to the inside of the water tank (3). A vent (51) is provided on one side of the wastewater tank (31). A filter screen (52) is fixedly installed inside the vent (51).

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