Seed coating agent film layer strength testing machine
By designing a seed coating agent film strength testing machine, which employs a test pressure head, test disc, support groove, and air jet mechanism, the problem of uneven force distribution during seed coating agent film testing is solved, achieving high-precision testing and dust removal effects.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-06
- Publication Date
- 2026-04-14
AI Technical Summary
Existing seed coating film strength testing machines cannot effectively handle the differences in seed coatings of different sizes during testing, resulting in smaller seed coatings not being subjected to uniform force, which affects the accuracy of test results.
A seed coating agent film strength testing machine was designed, which adopts a combination of test head, test plate, support groove, electric push rod and sensor to ensure that each seed coating agent is subjected to uniform force, and dust removal is carried out by a jet mechanism to prevent debris interference.
It enables uniform testing of seed coating film, improves testing accuracy, prevents testing deviations caused by size differences, and eliminates debris interference during the testing process.
Smart Images

Figure CN224122343U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of testing, and in particular to a seed coating film strength tester. Background Technology
[0002] In recent years, wheat diseases have shown a trend of expanding incidence and increasing severity, becoming major diseases in wheat-producing areas such as the Huang-Huai-Hai Plain, seriously threatening wheat production safety. Seed treatment agents are a type of pesticide formulation used for seed treatment. Seed treatment agents are applied during the early stages of crop germination and growth to eliminate soil-borne and seed-borne pests and diseases, greatly reducing the control pressure in the middle and late stages. A new type of film-forming agent is synthesized using LIPN, a polymer material preparation technology. LIPN technology makes the film-forming agent more compatible with other components (such as pesticides, pigments, etc.) in the seed coating agent, and the system is more stable and less prone to stratification or precipitation.
[0003] When a film layer is applied to the surface of a seed coating agent, the strength of the film layer needs to be tested to prevent damage during storage and transportation. In order to improve testing efficiency, existing testing machines place multiple seed coating agents with film layers on the testing platform and test the film layer by pressing. However, due to the size difference of the seed coating agents, some smaller seed coating agents are not subjected to pressure due to the support of larger ones, which affects the testing of the film layer of smaller seed coating agents. Utility Model Content
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A seed coating film strength testing machine includes a machine body, a machine platform, two support columns, a top plate, a hydraulic cylinder, a connecting plate, a test disc, and a test head. The machine platform is fixed to the top of the machine body, and the bottoms of the two support columns are fixed to the sides of the machine platform. The top plate is connected to the support columns. The hydraulic cylinder is clamped on the top plate, and its telescopic end is located at the bottom of the top plate and connected to the connecting plate. The test head is fixed to the bottom of the connecting plate. Multiple electric push rods are installed at the bottom of the test head, and a test plate is connected to the bottom of each electric push rod. A sensor is provided at the bottom of the test plate. The test disc is set on the top of the machine platform, and multiple support slots are opened on its top. The positions of the support slots correspond one-to-one with the test plates.
[0006] Preferably, the top of the connecting plate has positioning openings on both sides, and the positioning openings are slidably connected to the support column.
[0007] Preferably, the test plate is supported on the top of the machine platform by a support, the top of the support is provided with a pull-out groove, the pull-out plate is slidably connected in the pull-out groove, and the top of the pull-out plate is fixedly connected to the test plate; the side of the support is provided with a threaded opening, and a fastening bolt is threadedly connected in the threaded opening and abuts against the pull-out plate.
[0008] Preferably, a controller is installed on one side of the machine body, and the controller is electrically connected to the sensor and the electric push rod.
[0009] Preferably, a jetting mechanism is provided on one side of the top of the connecting plate. The jetting mechanism includes an air pump fixed on the connecting plate, an air outlet pipe connected to the air pump, an electromagnetic three-way valve connected to the bottom of the air outlet pipe, and a first row of pipes and a second row of pipes respectively connected to the bottom and side of the electromagnetic three-way valve. The outlet of the first row of pipes is inclined toward the test plate, and the outlet of the second row of pipes corresponds to the bottom distribution plane of the test pressure plate.
[0010] Preferably, the electromagnetic three-way valve is electrically connected to the controller.
[0011] Preferably, multiple heat dissipation vents are provided on both sides of the body.
[0012] The beneficial effects of this utility model are as follows:
[0013] 1. This utility model, through the setting of a test head, test plate, support groove, electric push rod, and test pressure plate, when testing the strength of seed coating agent film layer, places multiple seed coating agents with film layer on the test plate and positions them inside the support groove. After placement, the hydraulic cylinder is activated, which pushes the connecting plate and test head to move. When the distance between the test head and the seed coating agent is close, the sensor detects the distance between the test pressure plate and the seed coating agent, thereby causing the electric push rod to push the test pressure plate to move. Since the test pressure plate and the support groove are positioned accordingly, the independent operation of multiple test pressure plates and the electric push rod allows the test head to press and test each seed coating agent on the support groove, thereby improving the testing effect of the test machine on the seed coating agent film layer and preventing uneven stress on the seed coating agent due to differences in the size of the seed coating agent, which would cause deviation in the strength test results of the seed coating agent.
[0014] 2. This utility model, through its jetting mechanism, allows for the testing of the strength of the seed coating agent film. The seed coating agent is placed on a support groove. After placement, the hydraulic cylinder is activated, causing the jetting mechanism and test head to move downwards. At this time, the gas ejected by the jetting mechanism is discharged through the electromagnetic three-way valve and the first row of pipes to remove dust from the seed coating agent in the test tray. After the test is completed, the test head moves away from the seed coating agent. The ejected gas is then discharged through the electromagnetic three-way valve and the second row of pipes. The airflow at this point effectively removes any debris adhering to the test plate, preventing interference with the seed coating agent test. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of a seed coating agent film strength testing machine proposed in this utility model;
[0016] Figure 2 This is a schematic diagram of a partial explosion structure of a seed coating agent film strength testing machine proposed in this utility model;
[0017] Figure 3 This is a schematic diagram of the main structure of a seed coating agent film strength testing machine proposed in this utility model;
[0018] Figure 4 This is a schematic diagram of the test head structure of a seed coating agent film strength testing machine proposed in this utility model;
[0019] Figure 5 for Figure 4 The structural diagram at point A is presented in the text;
[0020] Figure 6 This is a schematic diagram of the jetting mechanism of a seed coating agent film strength testing machine proposed in this utility model.
[0021] In the attached diagram: 1. Machine body; 2. Controller; 3. Heat dissipation vent; 4. Machine base; 5. Support column; 6. Connecting plate; 7. Top plate; 8. Hydraulic cylinder; 9. Test pressure head; 10. Test plate; 11. Support groove; 12. Support; 13. Pull-out groove; 14. Pull-out plate; 15. Fastening bolt; 16. Air jet mechanism; 17. Electric push rod; 18. Test pressure plate; 19. Positioning port; 20. Air pump; 21. Air outlet pipe; 22. Solenoid three-way valve; 23. First row of pipes; 24. Second row of pipes. Detailed Implementation
[0022] Example 1, referring to Figures 1-5A coating film strength testing machine includes a body 1, a platform 4, two support columns 5, a top plate 7, a hydraulic cylinder 8, a connecting plate 6, a test disc 10, and a test head 9. Multiple heat dissipation vents 3 are provided on both sides of the body 1. The platform 4 is bolted to the top of the body 1. The bottoms of the two support columns 5 are welded to both sides of the platform 4. The top plate 7 is bolted to the two support columns 5. The hydraulic cylinder 8 is mounted on the top plate 7, with its telescopic end located at the bottom of the top plate 7 and connected to the connecting plate 6. The test head 9 is fixed to the bottom of the connecting plate 6. Multiple electric push rods 17 are fixed in the part, and a test pressure plate 18 is bolted to the bottom of the electric push rod 17. A sensor is set on one side of the bottom of the test pressure plate 18. The test plate 10 is set on the top of the machine base 4. Multiple support grooves 11 are opened on the top of the test plate 10. The position of the support grooves 11 corresponds to the test pressure plate 18. Through the independent operation of multiple test pressure plates 18 and electric push rods 17, the test head 9 can press and test each seed coating agent on the support groove 11, thereby improving the test effect of the test machine on the seed coating agent film layer.
[0023] When testing the strength of the seed coating agent film, multiple seed coating agents with film layers are placed on the test tray 10, with the seed coating agents located inside the support groove 11. After placement, the hydraulic cylinder 8 is activated, which pushes the connecting plate 6 and the test head 9 to move. When the distance between the test head 9 and the seed coating agent is close, the sensor detects the distance between the test plate 18 and the seed coating agent, thereby causing the electric push rod 17 to push the test plate 18 to move. Since the test plate 18 corresponds to the position of the support groove 11, the independent operation of multiple test plates 18 and the electric push rod 17 enables the test head 9 to press and test each seed coating agent on the support groove 11, thereby improving the testing effect of the test machine on the seed coating agent film layer.
[0024] In this utility model, in order to improve the stability of the test pressure head 9 moving downward with the connecting plate 6, positioning holes 19 are provided on both sides of the top of the connecting plate 6, and the positioning holes 19 are slidably connected to the support column 5.
[0025] In this invention, in order to facilitate the discharge of the seed coating agent after testing and to clean the test tray 10, a support 12 is bolted to the top of the machine base 4. A pull-out groove 13 is provided on the top of the support 12. A pull-out plate 14 is slidably connected to the inner wall of the pull-out groove 13. The top of the pull-out plate 14 is fixedly connected to the test tray 10. A threaded opening is provided between the support 12 and the pull-out groove 13. A fastening bolt 15 is threaded to the threaded opening. One end of the fastening bolt 15 is pressed against one side of the pull-out plate 14.
[0026] In this invention, a controller 2 is bolted to one side of the body 1, and the controller 2 is connected to the sensor and the electric push rod 17 by electrical signals.
[0027] Example 2, referring to the figure, is a seed coating film strength tester. Compared with Example 1, the connecting plate 6 has an air jet mechanism 16 on one side of its top.
[0028] Based on the above, the jet mechanism 16 includes an air pump 20, an air outlet pipe 21, an electromagnetic three-way valve 22, a first row of pipes 23, and a second row of pipes 24. The air pump 20 is fixed on the connecting plate 6. A through-hole is provided on one side of the top of the connecting plate 6. One end of the air outlet pipe 21 is fixedly connected to the air pump 20 through the through-hole. The bottom of the air outlet pipe 21 is connected to the electromagnetic three-way valve 22 through a flange. The bottom of the electromagnetic three-way valve 22 is connected to the first row of pipes 23 through a flange. The side of the electromagnetic three-way valve 22 is connected to the second row of pipes 24 through a flange. One end of the first row of pipes 23 is inclined toward one side of the test plate 10. The second row of pipes 24 and the bottom of the test pressure plate 18 are on the same plane. The electromagnetic three-way valve 22 is electrically connected to the controller 2.
[0029] The hydraulic cylinder 8 drives the jetting mechanism 16 and the test head 9 to move downwards. At this time, the gas jetted by the jetting mechanism 16 will be discharged through the solenoid three-way valve 22 and the first row pipe 23 to remove dust from the seed coating agent in the test tray 10. After the test is completed, the test head 9 will move away from the seed coating agent. At this time, the jetted gas will be discharged through the solenoid three-way valve 22 and the second row pipe 24. At this time, the wind can remove the debris adhering to the test plate 18 to prevent the debris from interfering with the test of the seed coating agent.
[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A seed coating film strength testing machine, comprising a body (1), a platform (4), two support columns (5), a top plate (7), a hydraulic cylinder (8), a connecting plate (6), a test disc (10), and a test head (9), wherein the platform (4) is fixed to the top of the body (1), the bottoms of the two support columns (5) are fixed to both sides of the platform (4), the top plate (7) is connected to the support columns (5), the hydraulic cylinder (8) is engaged on the top plate (7), its telescopic end is located at the bottom of the top plate (7) and connected to the connecting plate (6), and the test head (9) is fixed to the bottom of the connecting plate (6), characterized in that, The bottom of the test head (9) is equipped with multiple electric push rods (17), and the bottom of each electric push rod (17) is connected to a test plate (18). The bottom of the test plate (18) is equipped with a sensor. The test plate (10) is set on the top of the machine (4), and multiple support slots (11) are opened on its top. The position of the support slots (11) corresponds one-to-one with the test plate (18).
2. The seed coating film strength testing machine according to claim 1, characterized in that, The top of the connecting plate (6) has two through-holes (19), and the positioning holes (19) are slidably connected to the support column (5).
3. The seed coating film strength testing machine according to claim 1, characterized in that, The top of the machine base (4) is supported by a support (12) for the test plate (10). The support (12) has a pull-out groove (13) on its top. The pull-out plate (14) is slidably connected in the pull-out groove (13), and the top of the pull-out plate (14) is fixedly connected to the test plate (10). The support (12) has a threaded opening on its side. The fastening bolt (15) is threaded into the threaded opening and abuts against the pull-out plate (14).
4. The seed coating film strength testing machine according to claim 1, characterized in that, A controller (2) is installed on one side of the body (1), and the controller (2) is electrically connected to the sensor and the electric push rod (17).
5. The seed coating film strength testing machine according to claim 1, characterized in that, The top side of the connecting plate (6) is provided with a jet mechanism (16). The jet mechanism (16) includes an air pump (20) fixed on the connecting plate (6), an air outlet pipe (21) connected to the air pump (20), an electromagnetic three-way valve (22) connected to the bottom of the air outlet pipe (21), and a first row of pipes (23) and a second row of pipes (24) respectively connected to the bottom and side of the electromagnetic three-way valve (22). The outlet of the first row of pipes (23) is inclined toward the test plate (10), and the outlet of the second row of pipes (24) corresponds to the bottom distribution plane of the test pressure plate (18).
6. The seed coating film strength testing machine according to claim 5, characterized in that, The electromagnetic three-way valve (22) is electrically connected to the controller (2).
7. The seed coating film strength testing machine according to claim 1, characterized in that, The body (1) has multiple heat dissipation vents (3) on both sides.