Powder rationing device

Abstract

The utility model relates to a split charging device, specifically disclose a powder ration split charging device, including conveying device, and be located the blanking device above conveying device, the blanking device includes the blanking pipe of verticality and located the blanking pipe directly above the second conveying belt, and the feeding device of with blanking pipe upper end side wall intercommunication, the material blocking device of being located blanking pipe lower extreme, be located extruding device in blanking pipe, and the annular pressing plate of being located blanking pipe lower end portion, the powder ration split charging device of the utility model can avoid the powder of dispersing in the split charging process under the premise of guaranteeing split charging precision as far as possible.

Description

Technical Field

[0001] This utility model relates to the technical field of powder devices, and more specifically, to a powder quantitative dispensing device. Background Technology

[0002] In industrial production, powder packaging is a very common operation, widely used in many fields such as food, medicine, and chemicals. However, due to the characteristics of powder itself, such as small particle size, large specific surface area, strong adsorption, and varying flowability, it is very easy for it to scatter during the quantitative packaging process.

[0003] Especially for high-value food and pharmaceutical powders like bear bile powder, which are typically packaged in small bottles, frequent quantitative and dispensing operations are required. Furthermore, when the container opening is large, the powder is more likely to spill out during the filling process.

[0004] Furthermore, during the conveyor belt transport process after filling, the continuous vibration of the conveyor belt and the unstable airflow can also cause powder to scatter. Powder scattering not only pollutes the processing environment, increasing cleaning costs and time, but also leads to significant material waste, greatly increasing production costs, especially for high-value powders. In food and pharmaceutical production, powder scattering can also cause product quality problems and safety hazards. Therefore, there is an urgent need to design a quantitative dispensing device that can significantly optimize filling efficiency. Utility Model Content

[0005] The purpose of this invention is to provide a powder quantitative dispensing device that can minimize the dispersion of powder during the dispensing process while ensuring dispensing accuracy.

[0006] This utility model is achieved through the following technical solution: The powder quantitative dispensing device of this utility model includes a conveying device and a feeding device disposed above the conveying device; the conveying device includes a first conveyor belt, a second conveyor belt, and a third conveyor belt arranged horizontally and sequentially, and a first driving device for driving the second conveyor belt to rise and fall; the feeding device includes a feeding pipe vertically disposed directly above the second conveyor belt, a feeding device communicating with the upper side wall of the feeding pipe, a baffle device disposed at the lower end of the feeding pipe, an extrusion device disposed in the feeding pipe, and an annular pressure plate disposed at the lower end of the feeding pipe.

[0007] Furthermore, the feeding device includes a screw feeder communicating with the upper side wall of the discharge pipe, and a hopper connected to the feed end of the screw feeder.

[0008] Furthermore, the screw feeder is horizontally positioned.

[0009] Furthermore, the first driving device includes a base plate disposed below the second conveyor belt, a first telescopic cylinder vertically disposed on the upper side of the base plate, and a support plate disposed at the movable end of the first telescopic cylinder; the support plate is connected to the second conveyor belt.

[0010] Furthermore, multiple support blocks are provided on both sides of the second conveyor belt; the support plate is connected to the support block in the middle of the second conveyor belt; the first driving device also includes multiple limiting rods vertically disposed on the base plate, and a sliding groove vertically opened on the side of the limiting rod near the second conveyor belt, the multiple limiting rods are distributed on both sides of the second conveyor belt, and the support block located at the end of the second conveyor belt is slidably disposed in the sliding groove.

[0011] Furthermore, the inner wall of the lower end of the feed tube is provided with grooves on both opposite sides, and the grooves are provided with clearance holes; the material blocking device includes a pair of baffles respectively provided in the pair of grooves, a fixing block provided on one side of the pair of baffles that are far apart from each other, an annular first drive plate sleeved on the outer wall of the feed tube, and a second drive device for driving the first drive plate to rise and fall; the upper end of the baffle is hinged to the upper end of the groove, the fixing block extends outward from the feed tube after passing through the clearance hole, and the first drive plate abuts against the upper side of the fixing block.

[0012] Furthermore, the second driving device includes an annular second driving plate disposed above the first driving plate, a spring for connecting the first driving plate and the second driving plate, a sleeve fixedly disposed above the second driving plate, and a second telescopic cylinder disposed above the sleeve; the second driving plate and the sleeve are both sleeved on the outer wall of the feed pipe, the second telescopic cylinder is inverted, the cylinder body of the second telescopic cylinder is connected to the side wall of the feed pipe, and the movable end of the second telescopic cylinder is fixedly connected to the sleeve.

[0013] Furthermore, a counterweight is provided on the lower side of the fixed block.

[0014] Furthermore, the extrusion device includes an extrusion plate slidably disposed in the feed pipe, and a third telescopic cylinder vertically disposed above the extrusion plate; the third telescopic cylinder is vertically disposed, the cylinder body of the third telescopic cylinder is fixedly connected to the hopper, and the movable end of the third telescopic cylinder is fixedly connected to the extrusion plate.

[0015] Furthermore, a connecting ring is provided on the lower side wall of the feeding pipe, and the pressure plate is detachably connected to the lower side of the connecting ring.

[0016] The technical solution of this utility model has at least the following advantages and beneficial effects: In use, the powder quantitative dispensing device of this utility model transports containers via a conveying device. When the container reaches the second conveyor belt, it stops. The first driving device raises the height of the second conveyor belt and the container, causing the feeding pipe to be inserted into the bottom of the container. At this time, the baffle device at the lower end of the feeding pipe closes, and the feeding device feeds a quantitative amount of material into the feeding pipe (which is blocked by the baffle device and therefore cannot be discharged). Then the baffle device opens, and the powder in the feeding pipe is pushed out of the feeding pipe by the extrusion device. The powder is discharged from the end and enters the container. During this process, the first drive device drives the container to gradually descend until all the powder in the discharge pipe is discharged. Then, the first drive device drives the second conveyor belt and the container to rise a certain distance. This rising action uses a pressure plate to flatten the cone-shaped powder at the top of the container and slightly compact the powder at the top (eliminating the need for subsequent vibration of the container to level the powder). For containers with large opening diameters, this prevents powder from spilling out during subsequent transfer, and the powder is less likely to drift out due to airflow. Furthermore, due to the pressure plate's obstruction, the powder is less likely to drift out during the filling process, effectively suppressing powder dispersion. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of the powder quantitative dispensing device provided in the embodiment of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the feeding device provided in an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the feeding device provided in an embodiment of the present utility model;

[0020] Figure 4 This is a structural diagram of a square pressure plate provided in an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the internal structure of the feed tube in one state, provided in an embodiment of the present utility model.

[0022] Figure 6 A schematic diagram of the two states inside the feed tube provided in an embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram of the pressure plate portion provided in an embodiment of the present utility model.

[0024] Icons: 10-Conveying device, 11-First conveyor belt, 12-Second conveyor belt, 13-Third conveyor belt, 14-First drive device, 141-Base plate, 142-First telescopic cylinder, 143-Support plate, 144-Limiting rod, 145-Slide groove, 146-Support block, 20-Discharging device, 21-Discharging pipe, 22-Groove, 23-Leaving hole, 24-Pressure plate, 25-Connecting ring, 26-Feeding device, 261-Screw feeder, 262-Hopper, 27-Blocking device, 271-Baffle, 272-Fixing block, 273-First drive plate, 274-Counterweight block, 28-Second drive device, 281-Second drive plate, 282-Spring, 283-Sleeve, 284-Second telescopic cylinder, 29-Extrusion device, 291-Extrusion plate, 292-Third telescopic cylinder, 30-Container. Detailed Implementation

[0025] Example

[0026] The following description, in conjunction with specific embodiments, further illustrates the point, as shown in the appendix. Figure 1 -Appendix Figure 7As shown, the powder quantitative dispensing device in this embodiment includes a conveying device 10 and a feeding device 20 disposed above the conveying device 10. The conveying device 10 includes a first conveyor belt 11, a second conveyor belt 12, and a third conveyor belt 13 arranged horizontally and sequentially, and a first driving device 14 for driving the second conveyor belt 12 to rise and fall. The feeding device 20 includes a feeding pipe 21 vertically disposed directly above the second conveyor belt 12, a feeding device 26 communicating with the upper side wall of the feeding pipe 21, a baffle device 27 disposed at the lower end of the feeding pipe 21, an extrusion device 29 disposed in the feeding pipe 21, and an annular pressure plate 24 disposed at the lower end of the feeding pipe 21. Specifically, during use, the container 30 is transported by the conveyor device 10. When the container 30 is transported onto the second conveyor belt 12, it stops. The first drive device 14 raises the height of the second conveyor belt 12 and the container 30, so that the discharge pipe 21 is inserted into the bottom of the container 30. At this time, the baffle device 27 at the lower end of the discharge pipe 21 is closed, and the feeding device 26 feeds a fixed amount of material into the discharge pipe 21 (which is blocked by the baffle device 27 and cannot be discharged). Then the baffle device 27 is opened, and the powder in the discharge pipe 21 is pushed out of the discharge pipe 21 by the extrusion device 29, discharged from the lower end of the discharge pipe 21 and enters the container. In container 30, during this process, the first driving device 14 drives container 30 to gradually descend until all the powder in the discharge pipe 21 is discharged. Then, the first driving device 14 drives the second conveyor belt 12 and container 30 to rise a certain distance. This rising action can use the pressure plate 24 to flatten the cone-shaped powder inside container 30 and slightly compact the powder at the upper end (eliminating the need for subsequent vibration of container 30 to level the powder). For containers 30 with a large opening diameter, this can prevent powder from spilling out during subsequent transfer, and the powder is less likely to drift out due to airflow. Furthermore, due to the obstruction of the pressure plate 24, the powder is also less likely to drift out during the filling process, thus effectively suppressing powder dispersion.

[0027] The feeding device 26 in this embodiment includes a screw feeder 261 communicating with the upper side wall of the discharge pipe 21, and a hopper 262 connected to the feed end of the screw feeder 261. The screw feeder 261 is horizontally arranged. Specifically, the horizontally arranged screw feeder 261 can more accurately feed a fixed amount of powder into the discharge pipe 21, and the feeding amount can be precisely controlled by setting the pitch and number of rotations of the screw blades in the screw feeder 261. Furthermore, when the screw feeder 261 stops rotating, the powder will not flow out from the end of the screw feeder 261.

[0028] In this embodiment, the first driving device 14 includes a base plate 141 disposed below the second conveyor belt 12, a first telescopic cylinder 142 vertically disposed on the upper side of the base plate 141, and a support plate 143 disposed at the movable end of the first telescopic cylinder 142; the support plate 143 is connected to the second conveyor belt 12. Specifically, the second conveyor belt 12 is relatively short, typically only accommodating one container 30, and therefore lightweight, allowing it to be driven to rise and fall using the first telescopic cylinder 142. Furthermore, the second conveyor belt 12 also has a conveying function; the first conveyor belt 11 feeds empty containers 30 onto the second conveyor belt 12, where they are filled and then transported to the third conveyor belt 13.

[0029] In this embodiment, multiple support blocks 146 are provided on both sides of the second conveyor belt 12; the support plate 143 is connected to the support block 146 in the middle of the second conveyor belt 12; the first driving device 14 also includes multiple limiting rods 144 vertically mounted on the base plate 141, and a sliding groove 145 vertically opened on the side of the limiting rod 144 near the second conveyor belt 12. The multiple limiting rods 144 are distributed on both sides of the second conveyor belt 12, and the support block 146 located at the end of the second conveyor belt 12 is slidably disposed in the sliding groove 145. Specifically, the cooperation of the limiting rods 144 and the support blocks 146 can ensure the stable operation and lifting of the second conveyor belt 12.

[0030] In this embodiment, the inner wall of the lower end of the feed tube 21 is provided with grooves 22 on both opposite sides, and clearance holes 23 are provided in the grooves 22. The baffle device 27 includes a pair of baffles 271 respectively disposed in the pair of grooves 22, a fixing block 272 disposed on one side of the pair of baffles 271 away from each other, an annular first drive plate 273 sleeved on the outer wall of the feed tube 21, and a second drive device 28 for driving the first drive plate 273 to rise and fall. The upper end of the baffle 271 is hinged to the upper end of the groove 22, and the fixing block 272 extends outward from the feed tube 21 after passing through the clearance hole 23. The first drive plate 273 abuts against the upper side of the fixing block 272. Specifically, the second drive device 28 drives the first drive plate 273 to fall, thereby squeezing the fixing block 272. The fixing block 272 pushes the baffle 271 to rotate inside the feed tube 21. When the lower ends of the pair of baffles 271 contact (as shown in the attached figure) Figure 5 As shown, the lower end of the feeding pipe 21 can be sealed to prevent powder from overflowing from the lower end of the feeding pipe 21. When the second driving device 28 does not exert downward pressure on the first driving plate 273, that is, when the fixing block 272 loses the squeezing effect of the first driving plate 273, the powder in the feeding pipe 21 can push open the pair of baffles 271 under the action of the extrusion device 29, thereby pushing the powder out from the lower end of the feeding pipe 21.

[0031] In this embodiment, the second driving device 28 includes an annular second driving plate 281 disposed above the first driving plate 273, a spring 282 for connecting the first driving plate 273 and the second driving plate 281, a sleeve 283 fixedly disposed above the second driving plate 281, and a second telescopic cylinder 284 disposed above the sleeve 283. The second driving plate 281 and the sleeve 283 are both sleeved on the outer wall of the feed pipe 21. The second telescopic cylinder 284 is inverted. The cylinder body of the second telescopic cylinder 284 is connected to the side wall of the feed pipe 21, and the movable end of the second telescopic cylinder 284 is fixedly connected to the sleeve 283. Specifically, the second telescopic cylinder 284 pushes the sleeve 283, the second drive plate 281, the spring 282, and the first drive plate 273 to rise and fall, thereby pushing a pair of fixed blocks 272. By pressing the fixed blocks 272 downward, the lower ends of a pair of baffles 271 can be brought together to close the feed pipe 21. Multiple springs 282 are set between the first drive plate 273 and the second drive plate 281 to buffer the force of the second drive plate 281 on the first drive plate 273, preventing the first drive plate 273 and baffles 271 from being deformed by hard extrusion.

[0032] In this embodiment, a counterweight 274 is provided on the lower side of the fixing block 272. Specifically, under the action of the counterweight 274, a pair of baffles 271 will naturally fit together.

[0033] The extrusion device 29 in this embodiment includes an extrusion plate 291 slidably disposed in the feed pipe 21, and a third telescopic cylinder 292 vertically disposed above the extrusion plate 291. The third telescopic cylinder 292 is vertically disposed, and its cylinder body is fixedly connected to the hopper 262. The movable end of the third telescopic cylinder 292 is fixedly connected to the extrusion plate 291. Specifically, the third telescopic cylinder 292 pushes the extrusion plate 291 down, thereby pushing the powder in the feed pipe 21 out from the lower end of the feed pipe 21. Furthermore, the lower side of the extrusion plate 291 can be at the same height as the lower side of the pressure plate 24 (as shown in the attached figure). Figure 6 As shown in the figure, this allows the powder in container 30 to be flattened more effectively.

[0034] In this embodiment, the lower end sidewall of the feed pipe 21 is provided with a connecting ring 25, and the pressure plate 24 is detachably connected to the lower side of the connecting ring 25. Specifically, the detachable connection of the pressure plate 24 allows for the replacement of a pressure plate 24 of the appropriate size according to the specific size of the container 30. When the container 30 is square, a square pressure plate 24 can also be used (as shown in the attached figure). Figure 4 (As shown).

[0035] In summary, the powder dispensing device of this embodiment transports the container 30 via the conveying device 10 during use. When the container 30 is transported onto the second conveyor belt 12, it stops. The first drive device 14 raises the height of the second conveyor belt 12 and the container 30, so that the feeding pipe 21 is inserted into the bottom of the container 30. At this time, the baffle device 27 at the lower end of the feeding pipe 21 is closed, and the feeding device 26 feeds a quantitative amount of material into the feeding pipe 21 (which is blocked by the baffle device 27 and cannot be discharged). Then the baffle device 27 is opened, and the powder in the feeding pipe 21 is pushed out of the feeding pipe 21 by the extrusion device 29 and discharged from the lower end of the feeding pipe 21. The powder is discharged and enters the container 30. During this process, the first drive device 14 drives the container 30 to gradually descend until all the powder in the discharge pipe 21 is discharged. Then, the first drive device 14 drives the second conveyor belt 12 and the container 30 to rise a certain distance. This rising action can flatten the cone-shaped powder inside the container 30 through the pressure plate 24 and slightly compact the powder at the upper end (eliminating the need for subsequent vibration of the container 30 to level the powder). For containers 30 with a large opening diameter, this can prevent the powder from spilling out during subsequent transfer, and the powder is less likely to drift out due to airflow. Furthermore, due to the obstruction of the pressure plate 24, the powder is not easy to drift out during the filling process, which can effectively suppress powder dispersion.

[0036] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder quantitative dispensing device, characterized in that: It includes a conveying device (10) and a feeding device (20) disposed above the conveying device (10); The conveying device (10) includes a first conveyor belt (11), a second conveyor belt (12), a third conveyor belt (13) arranged horizontally and sequentially, and a first drive device (14) for driving the second conveyor belt (12) to rise and fall. The feeding device (20) includes a feeding pipe (21) vertically disposed above the second conveyor belt (12), a feeding device (26) communicating with the upper side wall of the feeding pipe (21), a baffle device (27) disposed at the lower end of the feeding pipe (21), an extrusion device (29) disposed in the feeding pipe (21), and an annular pressure plate (24) disposed at the lower end of the feeding pipe (21).

2. The powder dispensing device according to claim 1, characterized in that: The feeding device (26) includes a screw feeder (261) connected to the upper side wall of the feed pipe (21) and a hopper (262) connected to the feed end of the screw feeder (261).

3. The powder quantitative dispensing device according to claim 2, characterized in that: The screw feeder (261) is horizontally positioned.

4. The powder dispensing device according to claim 1, characterized in that: The first driving device (14) includes a base plate (141) disposed below the second conveyor belt (12), a first telescopic cylinder (142) vertically disposed on the upper side of the base plate (141), and a support plate (143) disposed at the movable end of the first telescopic cylinder (142); the support plate (143) is connected to the second conveyor belt (12).

5. The powder dispensing device according to claim 4, characterized in that: Multiple support blocks (146) are provided on both sides of the second conveyor belt (12); the support plate (143) is connected to the support block (146) in the middle of the second conveyor belt (12); The first driving device (14) further includes a plurality of limiting rods (144) vertically disposed on the base plate (141) and a groove (145) vertically disposed on the side of the limiting rods (144) near the second conveyor belt (12). The plurality of limiting rods (144) are distributed on both sides of the second conveyor belt (12), and the support block (146) located at the end of the second conveyor belt (12) is slidably disposed in the groove (145).

6. The powder quantitative dispensing device according to claim 1, characterized in that: The lower end of the feed tube (21) has grooves (22) on both sides of the inner wall, and a clearance hole (23) is provided in the groove (22); The material blocking device (27) includes a pair of baffles (271) respectively disposed in a pair of grooves (22), a fixing block (272) disposed on a side away from each other of the pair of baffles (271), an annular first drive plate (273) sleeved on the outer wall of the feed tube (21), and a second drive device (28) for driving the first drive plate (273) to rise and fall. The upper end of the baffle (271) is hinged to the upper end of the groove (22), the fixing block (272) extends outward from the feed tube (21) after passing through the relief hole (23), and the first drive plate (273) abuts against the upper side of the fixing block (272).

7. The powder dispensing device according to claim 6, characterized in that: The second driving device (28) includes an annular second driving plate (281) disposed above the first driving plate (273), a spring (282) for connecting the first driving plate (273) and the second driving plate (281), a sleeve (283) fixedly disposed above the second driving plate (281), and a second telescopic cylinder (284) disposed above the sleeve (283); The second drive plate (281) and the sleeve (283) are both sleeved on the outer wall of the feed pipe (21). The second telescopic cylinder (284) is inverted. The cylinder body of the second telescopic cylinder (284) is connected to the side wall of the feed pipe (21). The movable end of the second telescopic cylinder (284) is fixedly connected to the sleeve (283).

8. The powder quantitative dispensing device according to claim 6, characterized in that: A counterweight (274) is provided on the lower side of the fixed block (272).

9. The powder dispensing device according to claim 2, characterized in that: The extrusion device (29) includes an extrusion plate (291) slidably disposed in the feed pipe (21) and a third telescopic cylinder (292) vertically disposed above the extrusion plate (291); The third telescopic cylinder (292) is vertically arranged. The cylinder body of the third telescopic cylinder (292) is fixedly connected to the hopper (262), and the movable end of the third telescopic cylinder (292) is fixedly connected to the extrusion plate (291).

10. The powder dispensing device according to claim 1, characterized in that: The lower end side wall of the feed pipe (21) is provided with a connecting ring (25), and the pressure plate (24) is detachably connected to the lower side of the connecting ring (25).

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