Gradient powder filling machine and production process thereof

Abstract

The invention relates to the field of gradient powder filling, and discloses a gradient powder filling machine and a production process thereof.The gradient powder filling machine comprises a filling machine box, a fixing block is fixedly connected to the outer wall of the filling machine box, a motor is fixedly connected to the interior of the fixing block, and the output end of the motor is connected with a rotating shaft; the outer wall of the rotating shaft is rotatably connected to the interior of the filling machine box, a first rotating wheel is fixedly connected to the outer wall of the rotating shaft, a first transmission assembly is arranged on the outer wall of the first rotating wheel, a first lead screw is fixedly connected to the interior of the first transmission assembly, and the outer wall of the first lead screw is rotatably connected to the interior of the filling machine box. A first screw rod and a second screw rod can drive a first threaded block to move when rotating, the first threaded block is fixedly connected with a brush plate, so that the first threaded block can drive the brush plate to move synchronously when moving, then gradient powder waste is cleaned out of a filling area, the cleanliness of the filling area is guaranteed, and mixing of new gradient powder and old gradient powder is avoided; and the production quality of products is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of gradient powder filling, and specifically relates to a gradient powder filling machine and its production process. Background Art

[0002] Gradient powder is a special material that can present a color gradient effect, and it is particularly widely used in the cosmetics industry. By adding gradient powder to eye shadows, blushes, lipsticks and other color cosmetics, it can endow the products with unique color levels and gloss changes. Through the precise filling of the filling machine, it is ensured that the gradient powder content in each product is uniform.

[0003] Existing gradient powder filling machines usually adopt automated operations. Operators can set parameters such as filling volume, filling speed, and filling times through a touch screen or a control panel, and the filling box can automatically complete the filling process according to the preset program. However, the existing gradient powder filling machines do not have the function of automatically cleaning the surface of the filling table, which may cause the newly filled powder to be mixed with the old filled powder, thereby reducing the production quality of the final product. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a gradient powder filling machine and its production process, which solves the problem that the existing gradient powder filling machine does not have the function of automatically cleaning the surface of the filling table, resulting in the newly filled powder being possibly mixed with the old filled powder and reducing the production quality of the final product.

[0005] To achieve the above objectives, the present invention is realized through the following technical solutions: A gradient powder filling machine includes a filling machine case. A fixed block is fixedly connected to the outer wall of the filling machine case. A motor is fixedly connected inside the fixed block. The output end of the motor is connected to a rotating shaft. The outer wall of the rotating shaft is rotatably connected inside the filling machine case. A first runner is fixedly connected to the outer wall of the rotating shaft. A first transmission assembly is arranged on the outer wall of the first runner. A first lead screw is fixedly connected inside the first transmission assembly. The outer wall of the first lead screw is rotatably connected inside the filling machine case. A first rotating wheel is fixedly connected to the outer wall of the first lead screw. A second transmission assembly is arranged on the outer wall of the first rotating wheel. A second lead screw is fixedly connected inside the second transmission assembly. The outer wall of the second lead screw is rotatably connected inside the filling machine case. A first threaded block is threadedly connected to the outer walls of the first lead screw and the second lead screw. The outer wall of the first threaded block is slidably connected to the outer wall of the filling machine case. A brush plate is fixedly connected to the outer wall of the first threaded block. The outer wall of the brush plate is arranged on the upper surface of the filling machine case.

[0006] Preferably, the first transmission assembly includes a first conveyor belt, the outer wall of the first conveyor belt is disposed on the outer wall of the first runner, a second runner is disposed on the outer wall of the first conveyor belt, the outer wall of the first lead screw is fixedly connected to the inside of the second runner, the second transmission assembly includes a second conveyor belt, the outer wall of the second conveyor belt is disposed on the outer wall of the first rotating wheel, a second rotating wheel is disposed on the outer wall of the second conveyor belt, and the outer wall of the second lead screw is fixedly connected to the inside of the second rotating wheel.

[0007] Preferably, a first transmission wheel is fixedly connected to the outer wall of the first lead screw, a third transmission assembly is disposed on the outer wall of the first transmission wheel, a third lead screw is fixedly connected to the inside of the third transmission assembly, the outer wall of the third lead screw is rotatably connected to the inside of the filling machine case, a second threaded block is threadedly connected to the outer wall of the third lead screw, the outer wall of the second threaded block is slidably connected to the outer wall of the filling machine case, a toothed plate is fixedly connected to the outer wall of the second threaded block, the toothed end of the toothed plate is meshed with a gear, a bidirectional lead screw is fixedly connected to the inside of the gear, the outer wall of the bidirectional lead screw is rotatably connected to the inside of the filling machine case, a centering assembly is disposed on the outer wall of the bidirectional lead screw, the outer wall of the centering assembly is slidably connected to the upper surface of the filling machine case, a support column is fixedly connected to the upper surface of the filling machine case, the outer wall of the toothed plate is slidably connected to the inside of the support column, and a groove is formed in the inside of the filling machine case.

[0008] Preferably, the third transmission assembly includes a third conveyor belt, the outer wall of the first transmission wheel is disposed on the outer wall of the third conveyor belt, a second transmission wheel is disposed on the outer wall of the third conveyor belt, the outer wall of the third lead screw is fixedly connected to the inside of the second transmission wheel, the centering assembly includes a third threaded block, the outer wall of the bidirectional lead screw is threadedly connected to the inside of the third threaded block, a push plate is fixedly connected to the outer wall of the third threaded block, the outer wall of the third threaded block is slidably connected to the outer wall of the filling machine case, and the outer wall of the push plate is slidably connected to the upper surface of the filling machine case.

[0009] Preferably, a hole is formed in the inside of the support column, and the toothed plate is slidably connected to the inside of the support column through the hole.

[0010] Preferably, a first connecting plate and a second connecting plate are fixedly connected to the outer wall of the support column, a filling box is slidably connected to the outer walls of the first connecting plate and the second connecting plate, a pressure sensor is attached to the outer wall of the filling box, the outer wall of the pressure sensor is fixedly connected to the outer walls of the first connecting plate and the second connecting plate, a connecting wire is disposed inside the pressure sensor, the outer wall of the connecting wire is fixedly connected to the inside of the first connecting plate and the second connecting plate, a signal processing box is disposed on the outer wall of the connecting wire, a workbench is fixedly connected to the lower surface of the signal processing box, the outer wall of the workbench is fixedly connected to the outer wall of the filling machine case, a display is fixedly connected to the upper surface of the workbench, and the outer wall of the signal processing box is disposed inside the display.

[0011] Preferably, chutes are provided inside the first connecting plate and the second connecting plate, and the filling box is slidably connected to the outer walls of the first connecting plate and the second connecting plate through the chutes.

[0012] Preferably, a production process of a gradient powder filling machine includes the following steps:

[0013] First, use a laser calibrator to ensure that the guide rail is parallel to the mold tabletop, then adjust the distance d between the discharge ports of the filling box. Subsequently, measure the upper base length a, lower base length b, height h, and length L of the filling box, and thus calculate the unilateral cross-sectional area of the filling box Total volume To prepare for the subsequent filling amount of the gradient powder, after adding the gradient powder to the filling box, control the filling box to slide along the chutes on the outer walls of the first connecting plate and the second connecting plate through the display, and move above the filling mold for filling operations.

[0014] Preferably, a production process of a gradient powder filling machine includes the following steps:

[0015] By setting a threshold value P for the pressure sensor max = k·ρ·V + P offset [[ID=2l]]where ρ is the powder density (g / cm 3 ), k is an empirical coefficient, Poffset is the base pressure. During the filling process of the filling box, if it slides excessively and contacts the pressure sensor, the pressure sensor will transmit the current pressure data to the signal processing box through the connecting wire and then display it through the display. If P ≥ Pmax, stop immediately, the filling box retreats by Δd = 2 - 5 mm, and after a delay of 0.3 - 0.5 seconds, refill. If Pmax is triggered continuously 3 times, reduce the filling speed Q.

[0016] Preferably, a production process of a gradient powder filling machine includes the following steps:

[0017] S1: Add the gradient powder into the filling box, and then control the filling box to move above the filling mold for filling operations through the display;

[0018] S2: After the filling operation is completed, the movement of the brush plate will clean the gradient powder waste out of the filling operation area;

[0019] S3: While the brush plate pushes the gradient powder waste, the push plate will move centrally, and then push the cleaned gradient powder waste into the groove;

[0020] S4: When the filling box slides excessively, it will contact the pressure sensor and transmit the pressure data to the display. At this time, the display will compare the current pressure value with the pre-reserved value. When the value exceeds the reserved value, the filling box will stop sliding and return to the initial position, thus avoiding the poor filling quality of the gradient powder caused by excessive sliding of the filling box.

[0021] Working principle: First, start the motor to drive the rotating shaft to rotate, further drive the first runner to rotate. When the first runner rotates, it will drive the first conveyor belt to rotate. The second runner will rotate driven by the first conveyor belt. When the second runner rotates, it will drive the first lead screw to rotate, further drive the first rotating wheel to rotate. When the first rotating wheel rotates, it will drive the second conveyor belt to rotate. The second rotating wheel will rotate driven by the second conveyor belt. When the second rotating wheel rotates, it will drive the second lead screw to rotate. Since the first lead screw and the second lead screw are thread-connected to the first threaded block, when the first lead screw and the second lead screw rotate, they will drive the first threaded block to move, further drive the brush plate to move, and then realize the automatic cleaning of the gradient powder waste on the surface of the filling machine box, improving the cleanliness of the filling operation environment.

[0022] While the first lead screw rotates, it will also drive the first transmission wheel to rotate, further drive the third conveyor belt to rotate. When the third conveyor belt rotates, it will drive the second transmission wheel to rotate. When the second transmission wheel rotates, it will drive the third lead screw to rotate. Since the third lead screw is thread-connected to the second threaded block, when the third lead screw rotates, it will drive the second threaded block to move. When the second threaded block moves, it will drive the toothed plate to move. When the toothed plate moves continuously for a certain distance, it will contact the gear and drive the gear to rotate. When the gear rotates, it will drive the double-threaded screw rod to rotate, further drive the third threaded block to move. When the third threaded block moves, it will drive the push plate to move. Through the movement of the push plate, the gradient powder waste swept out is automatically pushed into the groove, facilitating the later recycling.

[0023] When the filling box performs the filling operation, the filling box will slide on the outer walls of the first connecting plate and the second connecting plate through the chute. When the filling box slides continuously for a certain distance, it will contact the pressure sensor. At this time, the pressure sensor will transmit the current pressure value to the signal processing box through the connecting wire, and further display the current pressure value through the display. And the display will compare the current pressure value with the value set in advance by the operator. When the set value is exceeded, the filling box will stop sliding and return to the initial position along the original path. Through the joint action of the first connecting plate, the second connecting plate, the pressure sensor, the signal processing box and the display, while improving the working stability of the filling box, it can also avoid excessive sliding of the filling box, resulting in poor filling efficiency.

[0024] The present invention provides a gradient powder filling machine and its production process. It has the following beneficial effects:

[0025] 1. In the present invention, starting the motor drives the rotating shaft to rotate, which in turn drives the first runner to rotate. When the first runner rotates, it drives the first conveyor belt to rotate. At this time, the second runner will rotate automatically under the drive of the first conveyor belt, further driving the first lead screw to rotate. While the first lead screw rotates, it also drives the first rotating wheel to rotate, further driving the second conveyor belt to rotate. The second rotating wheel will rotate automatically under the drive of the second conveyor belt, thus driving the second lead screw to rotate. When the first and second lead screws rotate, they drive the first threaded block to move. Since the first threaded block is fixedly connected to the brush plate, when the first threaded block moves, it drives the brush plate to move synchronously, thereby achieving the effect of cleaning the gradient powder waste out of the filling area, ensuring the cleanliness of the filling area, preventing the mixing of new and old gradient powders, and reducing the production quality of the product.

[0026] 2. In the present invention, when the first lead screw rotates, it also drives the first transmission wheel to rotate, which in turn drives the third conveyor belt to rotate. The second transmission wheel will rotate automatically under the drive of the third conveyor belt, further driving the third lead screw to rotate. When the third lead screw rotates, it drives the second threaded block to move. While the second threaded block moves, it drives the toothed plate to move synchronously. When the toothed plate moves a certain distance, it drives the gear to rotate, further driving the bidirectional lead screw to rotate. When the bidirectional lead screw rotates, it drives the third threaded block to move in opposite directions, further driving the push plate to move. Through the movement of the push plate, the gradient powder waste cleared out is automatically pushed into the groove, facilitating later recycling and secondary utilization.

[0027] 3. In the present invention, the operator controls the filling box to slide on the outer walls of the first and second connecting plates through the display. When the filling box slides excessively, it will contact the pressure sensors arranged on the outer walls of the first and second connecting plates. At this time, the pressure sensors will feedback the current value to the display and compare it with the value pre-saved in the display. When the value exceeds the reserved value, the filling box will stop sliding and return along the original path, thereby achieving the effect of preventing the filling box from sliding excessively, resulting in inaccurate filling positions, and improving the filling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a three-dimensional structural schematic diagram of the present invention;

[0029] Figure 2 is a partial structural schematic diagram of the fixed block of the present invention;

[0030] Figure 3 is a partial structural schematic diagram of the rotating shaft of the present invention;

[0031] Figure 4 is a partial structural schematic diagram of the first runner of the present invention;

[0032] Figure 5 Schematic diagram of a partial structure of the lead screw of the present invention;

[0033] Figure 6 Schematic diagram of a partial structure of the filling box of the present invention;

[0034] Figure 7 Schematic diagram of a partial structure of the support column of the present invention;

[0035] Figure 8 is Figure 7 The enlarged schematic diagram at position A in

[0036] Among them, 1. Filling machine case; 2. Fixed block; 3. Motor; 4. Rotating shaft; 5. First runner; 6. First conveyor belt; 7. Second runner; 8. First lead screw; 9. First rotating wheel; 10. Second conveyor belt; 11. Second rotating wheel; 12. Second lead screw; 13. First threaded block; 14. Brush plate; 15. First transmission wheel; 16. Third conveyor belt; 17. Second transmission wheel; 18. Third lead screw; 19. Second threaded block; 20. Tooth plate; 21. Gear; 22. Bidirectional threaded rod; 23. Third threaded block; 24. Pushing plate; 25. Groove; 26. Support column; 27. Hole; 28. First connecting plate; 29. Second connecting plate; 30. Filling box; 31. Pressure sensor; 32. Connecting wire; 33. Signal processing box; 34. Workbench; 35. Display; 36. Slide groove. Specific embodiments

[0037] Next, the technical solutions of the present invention will be clearly and completely described in conjunction with the drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] Please refer to the attached Figure 1 - attached Figure 5, an embodiment of the present invention provides a gradient powder filling machine and its production process, including a filling machine case 1. A fixed block 2 is fixedly connected to the outer wall of the filling machine case 1. A motor 3 is fixedly connected inside the fixed block 2. The output end of the motor 3 is connected to a rotating shaft 4. The outer wall of the rotating shaft 4 is rotatably connected inside the filling machine case 1. A first runner 5 is fixedly connected to the outer wall of the rotating shaft 4. A first transmission assembly is arranged on the outer wall of the first runner 5. A first lead screw 8 is fixedly connected inside the first transmission assembly. The outer wall of the first lead screw 8 is rotatably connected inside the filling machine case 1. A first rotating wheel 9 is fixedly connected to the outer wall of the first lead screw 8. A second transmission assembly is arranged on the outer wall of the first rotating wheel 9. A second lead screw 12 is fixedly connected inside the second transmission assembly. The outer wall of the second lead screw 12 is rotatably connected inside the filling machine case 1. A first threaded block 13 is threadedly connected to the outer walls of the first lead screw 8 and the second lead screw 12. The outer wall of the first threaded block 13 is slidably connected to the outer wall of the filling machine case 1. A brush plate 14 is fixedly connected to the outer wall of the first threaded block 13. The outer wall of the brush plate 14 is arranged on the upper surface of the filling machine case 1; The first transmission assembly includes a first conveyor belt 6. The outer wall of the first conveyor belt 6 is arranged on the outer wall of the first runner 5. A second runner 7 is arranged on the outer wall of the first conveyor belt 6. The outer wall of the first lead screw 8 is fixedly connected inside the second runner 7. The second transmission assembly includes a second conveyor belt 10. The outer wall of the second conveyor belt 10 is arranged on the outer wall of the first rotating wheel 9. A second rotating wheel 11 is arranged on the outer wall of the second conveyor belt 10. The outer wall of the second lead screw 12 is fixedly connected inside the second rotating wheel 11;

[0039] Specifically, first use a laser alignment instrument to ensure that the guide rail is parallel to the mold table surface. Subsequently, adjust the distance d between the discharge port of the filling box 30. The shape of the filling box 30 is trapezoidal. First measure the length of the upper base of the filling box 30, assumed to be a, the length of the lower base, assumed to be b, the height is h, and the length is L (in the direction perpendicular to the trapezoidal cross-section). Further, the unilateral cross-sectional area of the filling box 30 can be obtained Total volume The discharge amount Q depends on the cleaning efficiency of the brush plate or the push plate and can be expressed as Q = V·η, where η is the cleaning efficiency coefficient (0 < η ≤ 1, considering the residual powder). The filling rate R (the filling amount per unit time, such as cm 3 / s) is determined by the performance of the filling machine. Through the filling rate R and the total volume V of the filling box 30, the filling time can be calculated By starting the motor 3, due to the fixing effect between the output end of the motor 3 and the rotating shaft 4, the rotating shaft 4 will be driven to rotate. When the rotating shaft 4 rotates, due to the fixing effect between the rotating shaft 4 and the first runner 5, the first runner 5 will be driven to rotate, further driving the first conveyor belt 6 to rotate. When the first conveyor belt 6 rotates, it will drive the second runner 7 to rotate. Due to the fixing effect between the second runner 7 and the first lead screw 8, the first lead screw 8 will be driven to rotate. When the first lead screw 8 rotates, due to the fixing effect between the first lead screw 8 and the first rotating wheel 9, the first rotating wheel 9 will be driven to rotate, further driving the second transmission component to rotate. When the second transmission component rotates, due to the fixing effect between the second transmission component and the second lead screw 12, the second lead screw 12 will be driven to rotate. When the first lead screw 8 and the second lead screw 12 rotate, they will drive the first threaded block 13 threadedly connected to their outer walls to move. When the first threaded block 13 moves, due to the fixing effect between the first threaded block 13 and the brush plate 14, the brush plate 14 will be driven to move, thereby achieving the effect of automatically cleaning the powder on the upper surface of the filling table.

[0040] Please refer to the attached Figure 1 - attached Figure 5 , a first transmission wheel 15 is fixedly connected to the outer wall of the first lead screw 8. A third transmission component is arranged on the outer wall of the first transmission wheel 15. A third lead screw 18 is fixedly connected to the inside of the third transmission component. The outer wall of the third lead screw 18 is rotatably connected inside the filling machine case 1. A second threaded block 19 is threadedly connected to the outer wall of the third lead screw 18. The outer wall of the second threaded block 19 is slidably connected to the outer wall of the filling machine case 1. A toothed plate 20 is fixedly connected to the outer wall of the second threaded block 19. The toothed end of the toothed plate 20 is meshed with a gear 21. A bidirectional threaded rod 22 is fixedly connected to the inside of the gear 21. The outer wall of the bidirectional threaded rod 22 is rotatably connected inside the filling machine case 1. A centering component is arranged on the outer wall of the bidirectional threaded rod 22. The outer wall of the centering component is slidably connected to the upper surface of the filling machine case 1. A support column 26 is fixedly connected to the upper surface of the filling machine case 1. The outer wall of the toothed plate 20 is slidably connected inside the support column 26. A groove 25 is formed inside the filling machine case 1;

[0041] Specifically, when the first lead screw 8 rotates, due to the fixing effect between the first lead screw 8 and the first transmission wheel 15, the first transmission wheel 15 will be driven to rotate, further driving the third transmission assembly to rotate. When the third transmission assembly rotates, due to the fixing effect between the third transmission assembly and the third lead screw 18, the third lead screw 18 will be driven to rotate. When the third lead screw 18 rotates, it will drive the second threaded block 19 to move. Due to the fixing effect between the second threaded block 19 and the toothed plate 20, the toothed plate 20 will be driven to move. After the toothed plate 20 moves a certain distance, it will contact the gear 21, further driving the gear 21 to rotate. When the gear 21 rotates, due to the fixing effect between the gear 21 and the bidirectional lead screw 22, the bidirectional lead screw 22 will be driven to rotate. When the bidirectional lead screw 22 rotates, it will drive the centering assembly to slide on the upper surface of the filling machine case 1, thereby automatically pushing the gradient powder waste on the upper surface of the filling machine case 1 into the groove 25, eliminating the need for operators to manually clean the gradient powder waste and achieving the effect of reducing the work intensity.

[0042] Please refer to the attached Figure 1 - attached Figure 6 The third transmission assembly includes a third conveyor belt 16. The outer wall of the first transmission wheel 15 is disposed on the outer wall of the third conveyor belt 16. The outer wall of the third conveyor belt 16 is provided with a second transmission wheel 17. The outer wall of the third lead screw 18 is fixedly connected to the inside of the second transmission wheel 17. The centering assembly includes a third threaded block 23. The outer wall of the bidirectional lead screw 22 is threadedly connected to the inside of the third threaded block 23. The outer wall of the third threaded block 23 is fixedly connected with a push plate 24. The outer wall of the third threaded block 23 is slidably connected to the outer wall of the filling machine case 1. The outer wall of the push plate 24 is slidably connected to the upper surface of the filling machine case 1.

[0043] Specifically, when the first transmission wheel 15 rotates, it will drive the third conveyor belt 16 to rotate, further driving the second transmission wheel 17 to rotate. When the second transmission wheel 17 rotates, due to the fixing effect between the second transmission wheel 17 and the third lead screw 18, the third lead screw 18 is driven to rotate. When the bidirectional lead screw 22 rotates, due to the threaded connection between the bidirectional lead screw 22 and the third threaded block 23, the third threaded block 23 is driven to move. When the third threaded block 23 moves, due to the fixing effect between the third threaded block 23 and the push plate 24, the push plate 24 will be driven to move. Through the mutual cooperation among the bidirectional lead screw 22, the third threaded block 23 and the push plate 24, the gradient powder waste is automatically pushed into the groove 25, avoiding the need for manual cleaning by operators in the later stage.

[0044] Please refer to the attached Figure 3 - attached Figure 5 A hole 27 is formed inside the support column 26. The toothed plate 20 is slidably connected to the inside of the support column 26 through the hole 27.

[0045] Specifically, the hole 27 is used to restrict the running track of the toothed plate 20, ensuring the stability and accuracy of the movement of the toothed plate 20.

[0046] Please refer to the attached Figure 1 - Attachment Figure 7 , a connecting plate one 28 and a connecting plate two 29 are fixedly connected to the outer wall of the support column 26. A filling box 30 is slidably connected to the outer walls of the connecting plate one 28 and the connecting plate two 29. A pressure sensor 31 is attached to the outer wall of the filling box 30. The outer wall of the pressure sensor 31 is fixedly connected to the outer walls of the connecting plate one 28 and the connecting plate two 29. A connecting wire 32 is arranged inside the pressure sensor 31. The outer wall of the connecting wire 32 is fixedly connected to the inside of the connecting plate one 28 and the connecting plate two 29. A signal processing box 33 is arranged on the outer wall of the connecting wire 32. A workbench 34 is fixedly connected to the lower surface of the signal processing box 33. The outer wall of the workbench 34 is fixedly connected to the outer wall of the filling machine box 1. A display 35 is fixedly connected to the upper surface of the workbench 34. The outer wall of the signal processing box 33 is arranged inside the display 35;

[0047] Specifically, during the normal filling process, the maximum pressure value Psafe is recorded. By setting the threshold P max = 0.8×P safe (leaving a 20% safety margin), during real-time dynamic adjustment, P max = k·ρ·V + P offset where ρ is the powder density (g / cm 3 ), V is the groove capacity (cm 3 ), k is an empirical coefficient (0.1 - 0.3, which needs to be calibrated), Poffset is the base pressure (such as 0.5N to prevent false triggering). During the filling process, the pressure P is monitored in real time. If P≥Pmax, the motor is immediately stopped, the filling box 30 retracts by Δd = 2 - 5mm, and after a delay of 0.3 - 0.5 seconds, it is refilled. If P<Pmax, continuous filling and data recording are performed. If Pmax is triggered 3 times consecutively, the filling speed Q is reduced. When the filling box 30 performs the filling of the gradient powder operation, it will slide on the outer walls of the connecting plate one 28 and the connecting plate two 29. When the filling box 30 slides a certain distance, it will come into contact with the pressure sensor 31 arranged on the outer walls of the connecting plate one 28 and the connecting plate two 29. At this time, the pressure sensor 31 will transmit the current pressure value to the signal processing box 33 through the connecting wire 32 and display the current pressure value through the display 35. The display 35 will also compare the current pressure value with the value set in advance by the operator. When it exceeds the value set in advance, the filling box 30 will stop sliding and return to the initial position. Through the mutual cooperation among the connecting plate one 28, the connecting plate two 29, the connecting wire 32, the signal processing box 33, and the display 35, not only can the stability of the filling box 30 during operation be improved, but also the over-sliding of the filling box 30 resulting in inaccurate filling positions can be avoided, ensuring the accuracy of the gradient powder filling operation and improving the working efficiency of the filling box 30.

[0048] Please refer to the attachedFigure 6 - Attachment Figure 8 Inside the first connecting plate 28 and the second connecting plate 29, a sliding groove 36 is provided, and the filling box 30 is slidably connected to the outer walls of the first connecting plate 28 and the second connecting plate 29 through the sliding groove 36;

[0049] Specifically, the sliding groove 36 is used to limit the running track of the filling box 30, achieving the effect of improving the stability of the filling box 30 during operation.

[0050] A production process of a gradient powder filling machine includes the following steps:

[0051] First, use a laser calibrator to ensure that the guide rail is parallel to the mold table surface, then adjust the distance d between the discharge ports of the filling box (30), and then measure the upper base length a, lower base length b, height h, and length L (perpendicular to the trapezoidal cross-section direction) of the filling box (30), and thus calculate the unilateral cross-sectional area of the filling box (30) Total volume To prepare for the subsequent filling amount of the gradient powder, after adding the gradient powder to the filling box (30), control the filling box (30) to slide along the sliding groove (36) on the outer walls of the first connecting plate (28) and the second connecting plate (29) through the display (35), and move to the upper part of the filling mold for filling operation.

[0052] A production process of a gradient powder filling machine includes the following steps:

[0053] By setting a threshold value P for the pressure sensor (31) max = k·ρ·V + P offset , where ρ is the powder density (g / cm 3 ), k is an empirical coefficient (0.1 - 0.3, to be calibrated), Poffset is the base pressure (such as 0.5 N, to prevent mis-triggering). During the filling process of the filling box (30), if it slides excessively and contacts the pressure sensor (31), at this time, the pressure sensor (31) will transmit the current pressure data to the signal processing box (33) through the connecting wire (32), and then display it through the display (35). If P (the current pressure value) ≥ Pmax, stop immediately, the filling box (30) retreats by Δd = 2 - 5 mm, and after a delay of 0.3 - 0.5 seconds, refill. If Pmax is triggered continuously 3 times, reduce the filling speed Q.

[0054] A production process of a gradient powder filling machine includes the following steps:

[0055] S1: Add the gradient powder into the filling box 30, and then control the filling box 30 to move to the upper part of the filling mold for filling operation through the display 35;

[0056] S2: After the filling operation is completed, the movement of the brush plate 14 will clean the gradient powder waste out of the filling operation area;

[0057] S3: While the brush plate 14 pushes the gradient powder waste, the push plate 24 will move centrally, and then push the cleaned gradient powder waste into the groove 25;

[0058] S4: When the filling box 30 slides excessively, it will contact the pressure sensor 31 and transmit the pressure data to the display 35. At this time, the display 35 will compare the current pressure value with the pre-reserved value. When the value exceeds the reserved value, the filling box 30 will stop sliding and return to the initial position, so as to avoid the poor filling quality of the gradient powder caused by the excessive sliding of the filling box 30.

[0059] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gradient powder filling machine, comprising a filling machine case (1), characterized in that: The outer wall of the filling chassis (1) is fixedly connected with a fixed block (2). A motor (3) is fixedly connected inside the fixed block (2). The output end of the motor (3) is connected with a rotating shaft (4). The outer wall of the rotating shaft (4) is rotatably connected inside the filling chassis (1). A first runner (5) is fixedly connected to the outer wall of the rotating shaft (4). A first transmission assembly is arranged on the outer wall of the first runner (5). A first lead screw (8) is fixedly connected inside the first transmission assembly. The outer wall of the first lead screw (8) is rotatably connected inside the filling chassis (1). A first rotating wheel (9) is fixedly connected to the outer wall of the first lead screw (8). A second transmission assembly is arranged on the outer wall of the first rotating wheel (9). A second lead screw (12) is fixedly connected inside the second transmission assembly. The outer wall of the second lead screw (12) is rotatably connected inside the filling chassis (1). A first threaded block (13) is threadedly connected to the outer walls of the first lead screw (8) and the second lead screw (12). The outer wall of the first threaded block (13) is slidably connected to the outer wall of the filling chassis (1). A brush plate (14) is fixedly connected to the outer wall of the first threaded block (13). The outer wall of the brush plate (14) is arranged on the upper surface of the filling chassis (1).

2. The gradient powder filling machine according to claim 1, characterized in that: The first transmission assembly includes a first conveyor belt (6). The outer wall of the first conveyor belt (6) is arranged on the outer wall of the first runner (5). A second runner (7) is arranged on the outer wall of the first conveyor belt (6). The outer wall of the first lead screw (8) is fixedly connected inside the second runner (7). The second transmission assembly includes a second conveyor belt (10). The outer wall of the second conveyor belt (10) is arranged on the outer wall of the first rotating wheel (9). A second rotating wheel (11) is arranged on the outer wall of the second conveyor belt (10). The outer wall of the second lead screw (12) is fixedly connected inside the second rotating wheel (11).

3. The gradient powder filling machine according to claim 1, characterized in that: A first transmission wheel (15) is fixedly connected to the outer wall of the first lead screw (8). A third transmission assembly is arranged on the outer wall of the first transmission wheel (15). A third lead screw (18) is fixedly connected inside the third transmission assembly. The outer wall of the third lead screw (18) is rotatably connected inside the filling chassis (1). A second threaded block (19) is threadedly connected to the outer wall of the third lead screw (18). The outer wall of the second threaded block (19) is slidably connected to the outer wall of the filling chassis (1). A toothed plate (20) is fixedly connected to the outer wall of the second threaded block (19). The toothed end of the toothed plate (20) is meshed with a gear (21). A bidirectional lead screw (22) is fixedly connected inside the gear (21). The outer wall of the bidirectional lead screw (22) is rotatably connected inside the filling chassis (1). A centering assembly is arranged on the outer wall of the bidirectional lead screw (22). The outer wall of the centering assembly is slidably connected to the upper surface of the filling chassis (1). A support column (26) is fixedly connected to the upper surface of the filling chassis (1). The outer wall of the toothed plate (20) is slidably connected inside the support column (26). A groove (25) is formed inside the filling chassis (1).

4. The gradient powder filling machine according to claim 3, characterized in that: The transmission component three includes a conveyor belt three (16), the outer wall of the transmission wheel one (15) is arranged on the outer wall of the conveyor belt three (16), the outer wall of the conveyor belt three (16) is provided with a transmission wheel two (17), the outer wall of the screw rod three (18) is fixedly connected to the inside of the transmission wheel two (17), the centering component includes a threaded block three (23), the outer wall of the bidirectional threaded rod (22) is threadedly connected to the inside of the threaded block three (23), the outer wall of the threaded block three (23) is fixedly connected to a push plate (24), the outer wall of the threaded block three (23) is slidably connected to the outer wall of the filling chassis (1), and the outer wall of the push plate (24) is slidably connected to the upper surface of the filling chassis (1).

5. The gradient powder filling machine according to claim 4, wherein: A hole (27) is provided inside the support column (26), and the tooth plate (20) is slidably connected to the inside of the support column (26) through the hole (27).

6. The gradient powder filling machine according to claim 4, wherein: The outer wall of the support column (26) is fixedly connected to the connecting plate 1 (28) and the connecting plate 2 (29), the outer walls of the connecting plate 1 (28) and the connecting plate 2 (29) are slidably connected to the filling box (30), the outer wall of the filling box (30) is fitted with a pressure sensor (31), the outer wall of the pressure sensor (31) is fixedly connected to the outer walls of the connecting plate 1 (28) and the connecting plate 2 (29), and a connecting line (32) is provided inside the pressure sensor (31), the connecting line ( The outer wall of the connecting wire (32) is fixedly connected to the inside of the connecting plate 1 (28) and the connecting plate 2 (29), the outer wall of the connecting wire (32) is provided with a signal processing box (33), the lower surface of the signal processing box (33) is fixedly connected to a workbench (34), the outer wall of the workbench (34) is fixedly connected to the outer wall of the filling chassis (1), the upper surface of the workbench (34) is fixedly connected to a display (35), and the outer wall of the signal processing box (33) is provided inside the display (35).

7. The gradient powder filling machine according to claim 6, characterized in that: The interior of the connecting plate 1 (28) and the connecting plate 2 (29) is provided with a sliding groove (36), and the filling box (30) is slidably connected to the outer wall of the connecting plate 1 (28) and the connecting plate 2 (29) through the sliding groove (36).

8. A production process of a gradient powder filling machine, characterized in that: A kind of gradient powder filling machine according to any one of claims 1-7, comprising the following steps: First, use a laser calibrator to ensure that the guide rail is parallel to the mold tabletop, then adjust the spacing d between the discharge ports of the filling box (30), and then measure the upper bottom length a, lower bottom length b, height h, and length L (perpendicular to the trapezoidal cross-section direction) of the filling box (30), thereby calculating the unilateral cross-sectional area of the filling box (30). Total volume To prepare for the subsequent filling amount of the gradient powder, after adding the gradient powder to the filling box (30), control the filling box (30) to slide along the chute (36) on the outer walls of the connecting plate one (28) and the connecting plate two (29) through the display (35), and move to the upper part of the filling mold for filling operation.

9. The production process of a gradient powder filling machine according to claim 8, characterized in that: By setting a threshold value P for the pressure sensor (31) max = k·ρ·V + P offset , where ρ is the powder density (g / cm 3 ), k is an empirical coefficient (0.1 - 0.3, to be calibrated), Poffset is the base pressure (such as 0.5 N, to prevent false triggering). During the filling process of the filling box (30), if it slides excessively and contacts the pressure sensor (31), at this time, the pressure sensor (31) will transmit the current pressure data to the signal processing box (33) via the connection line (32), and then display it through the display (35). If P (the current pressure value) ≥ Pmax, stop immediately, the filling box (30) retracts by Δd = 2 - 5 mm, and after a delay of 0.3 - 0.5 seconds, refill. If Pmax is triggered continuously 3 times, reduce the filling speed Q.

10. The production process of a gradient powder filling machine according to any one of claims 8, characterized in that, The following steps are involved: S1: Gradient powder is added into the filling box (30), and then the filling box (30) is controlled by the display (35) to move to the top of the filling mold to perform the filling operation; S2: After the filling operation is completed, the gradient powder waste is cleaned out of the filling operation area by the movement of the brush plate (14); S3: While the brush plate (14) pushes the gradient powder waste, the push plate (24) moves in the center, and then pushes the cleaned gradient powder waste into the groove (25); S4: When the filling box (30) slides excessively, it contacts the pressure sensor (31) and transmits the pressure data to the display (35). At this time, the display (35) compares the current pressure value with the value reserved in advance. When the value exceeds the reserved value, the filling box (30) stops sliding and returns to the initial position, thereby avoiding excessive sliding of the filling box (30) and resulting in poor quality of gradient powder filling.

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