Powder filling device

Abstract

The utility model relates to the technical field of filling, and discloses a powder filling device which comprises a filling bottle used for containing powder, a weighing mechanism arranged at the bottom of the filling bottle and a material storage tank, and a plurality of filling mechanisms are arranged at the lower end of the material storage tank. The filling mechanism comprises a shell, the lower end of the shell is provided with a discharging port used for filling the filling bottle with powder, a driving mechanism used for driving the powder to be discharged is arranged at the position, corresponding to the discharging port, in the shell, and the filling device further comprises an opening and closing mechanism used for opening and closing the discharging port. The driving mechanism and the opening and closing mechanism are electrically connected with the weighing mechanism. According to the powder filling device provided by the utility model, filling of a plurality of filling bottles can be realized at one time, the filling efficiency is improved, and the situation that powder leaks from the discharging opening after the filling bottles are filled with required powder is avoided, so that the influence on the filling precision is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a powder filling device. Background Art

[0002] In the process of filling LSM (lanthanum strontium manganese oxide) or MCO (manganese cobalt oxide) powder, the powder is first placed in the storage tank, fed to the small storage tank at the bottom through vibration feeding, and then filled under the spiral feeding device in the small storage tank. Among them, there is a powder weighing system under the filling bottle. Through the feedback of the weighing system, when the weight to be set is reached, the spiral feeding system stops feeding and the filling is completed.

[0003] However, the current filling machine can only fill one bottle at a time, which takes a long time and has low filling efficiency. In addition, after the filling bottle is filled with the required powder, the feeding port of the current filling machine is not closed, and the feeding port will leak powder, affecting the filling accuracy. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a powder filling device to improve the filling efficiency and ensure the filling accuracy.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A powder filling device comprises a filling bottle for containing powder, a weighing mechanism is arranged at the bottom of the filling bottle, and a material storage tank, a plurality of filling mechanisms are arranged at the lower end of the material storage tank;

[0007] The filling mechanism includes a shell, a feeding port for filling powder into the filling bottle is provided at the lower end of the shell, a driving mechanism for driving the powder to be discharged is provided inside the shell corresponding to the feeding port, and an opening and closing mechanism for opening and closing the feeding port is also provided, and the driving mechanism and the opening and closing mechanism are both electrically connected to the weighing mechanism.

[0008] Preferably, a discharge pipe is provided at the lower end of the storage tank, and the upper ends of the plurality of shells are connected to the discharge ports of the discharge pipe.

[0009] Preferably, the shell comprises a feeding part and a filling part which are arranged obliquely to each other, the other end of the feeding part is connected to the discharge pipe, and the driving mechanism is arranged at the filling part.

[0010] Preferably, the angle between the feeding part and the filling part is a, and the value range of a is 135-145°.

[0011] Preferably, the driving mechanism comprises a screw rod disposed inside the shell and a motor disposed on the outer wall of the shell, and an output shaft of the motor is connected to the screw rod.

[0012] Preferably, the port at one end of the shell connected to the storage tank is a feed port, and a feed plate is provided on the feed port, and the feed plate is driven to open and close by a feed cylinder.

[0013] Preferably, an upper material level sensor and a lower material level sensor for detecting the position of powder are provided inside the shell, and the upper material level sensor is arranged above the lower material level sensor, and the upper material level sensor and the lower material level sensor are both electrically connected to the feed cylinder.

[0014] Preferably, a control system is included, and the upper material level sensor, the lower material level sensor, the feed cylinder, the drive mechanism, the opening and closing mechanism and the weighing mechanism are all electrically connected to the control system.

[0015] Preferably, the opening and closing mechanism includes a baffle rotatably connected to the discharge port and a rotary cylinder disposed on the outer wall of the shell, wherein the rotary cylinder is connected to the baffle.

[0016] Preferably, a conveyor belt is included, and the filling bottles are arranged on the conveyor belt.

[0017] Compared with the prior art, the powder filling device of the embodiment of the utility model has the following beneficial effects: by arranging multiple filling mechanisms at the lower end of the storage tank, multiple canned bottles can be filled at one time, thereby improving the filling efficiency. At the same time, by arranging an opening and closing mechanism for opening and closing the discharge port, and electrically connecting the driving mechanism and the opening and closing mechanism to the weighing mechanism, when the weighing mechanism feeds back that the filling bottle has been filled to the required mass, the driving mechanism is controlled to stop driving the powder, and the opening and closing mechanism is controlled to close the discharge port, thereby avoiding the situation where the discharge port leaks powder after the filling bottle is filled with the required powder, thereby ensuring the filling accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic structural diagram of the powder filling device of the present utility model.

[0019] Figure 2 It is a partial view of the powder filling device of the present utility model.

[0020] Among them: 1-filling bottle, 2-weighing mechanism, 3-shell, 4-discharging pipe, 5-screw rod, 6-motor, 7-feeding plate, 8-feeding cylinder, 9-upper material level sensor, 10-lower material level sensor, 11-baffle, 12-rotating cylinder, 13-feeding part, 14-filling part, 15-conveyor belt. DETAILED DESCRIPTION

[0021] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0022] like Figure 1-2 As shown, a powder filling device according to a preferred embodiment of the utility model comprises a filling bottle 1 for containing powder, a weighing mechanism 2 is provided at the bottom of the filling bottle 1, and a storage tank, a plurality of filling mechanisms are provided at the lower end of the storage tank.

[0023] The filling mechanism includes a housing 3, the lower end of which is provided with a feeding port for filling powder into the filling bottle 1, and a driving mechanism for driving the discharge of powder is provided inside the housing 3 corresponding to the feeding port, and also includes an opening and closing mechanism for opening and closing the feeding port, and the driving mechanism and the opening and closing mechanism are electrically connected to the weighing mechanism 2. It also includes a conveyor belt 15, and the filling bottle 1 is arranged on the conveyor belt 15. Under the action of the conveyor belt 15, the filling bottle 1 is conveyed to the feeding port for filling, and is sent out by the conveyor belt 15 after the filling is completed.

[0024] The powder filling device based on the above technical features can fill multiple canned bottles 1 at one time by setting multiple filling mechanisms at the lower end of the storage tank, thereby improving the filling efficiency. At the same time, by setting an opening and closing mechanism for opening and closing the discharge port, and electrically connecting the driving mechanism and the opening and closing mechanism to the weighing mechanism, when the weighing mechanism feeds back that the filling bottle 1 has been filled to the required mass, the driving mechanism is controlled to stop driving the powder, and the opening and closing mechanism is controlled to close the discharge port, thereby avoiding the situation where the discharge port leaks powder after the filling bottle 1 is filled with the required powder, thereby ensuring the filling accuracy.

[0025] In this embodiment, the general storage tank has only one discharge port. In order to facilitate the connection with multiple canning mechanisms, a discharge pipe 4 is provided at the lower end of the storage tank, and the upper ends of multiple shells 3 are connected to the discharge ports of the discharge pipe 4. At the same time, in order to avoid interference between the shells 3, the shell 3 includes a feed part 13 and a filling part 14 that are arranged obliquely. The other end of the feed part 13 is connected to the discharge pipe 4, and the driving mechanism is arranged in the filling part 14. Thereby, there is a spacing between the filling parts 14 between the multiple shells 3, which will not affect the simultaneous filling of multiple filling bottles 1. Specifically, if the angle between the feed part 13 and the filling part 14 is a, the value range of a is 135-145°, such as 138°, 142°, etc.

[0026] In this embodiment, the driving mechanism includes a screw rod 5 disposed inside the housing 3 and a motor 6 disposed on the outer wall of the housing 3, and the output shaft of the motor 6 is connected to the screw rod 5. Specifically, the motor 6 is a servo motor, which is disposed at the connection between the feeding part 13 and the filling part 14 through a motor bracket, and the screw rod 5 is disposed in the filling part 14. When filling is required, the motor 6 is started to drive the screw rod 5 to discharge the powder.

[0027] In this embodiment, the port at one end of the housing 3 connected to the storage tank is the feed port, and a feed plate 7 is provided on the feed port, and the feed plate 7 is driven to open and close by a feed cylinder 8. The feed cylinder 8 can be a telescopic cylinder, which drives the feed plate 7 to move along the radial direction of the feed port to open and close the feed port; the feed cylinder 8 can also be a rotary cylinder, which drives the feed plate 7 to rotate to open and close the feed port. When using a telescopic cylinder, the AirTac series cylinder can be used, and the stroke can be adjusted as needed.

[0028] In order to realize the automatic opening and closing of the feed port, an upper material level sensor 9 and a lower material level sensor 10 for detecting the position of the powder are provided inside the housing 3, and the upper material level sensor 9 is arranged above the lower material level sensor 10, and both the upper material level sensor 9 and the lower material level sensor 10 are electrically connected to the feed cylinder 8. The upper material level sensor 9 is arranged at the maximum powder amount position allowed by the housing 3, and the lower material level sensor 10 is arranged at the minimum powder amount position in the housing 3, that is, when the upper material level sensor 9 detects that there is material, the corresponding feed cylinder 8 closes the feed port on the corresponding side, until all the feed cylinders 8 are completely closed, and the storage tank stops unloading; when any of the lower material level sensors 10 detects that there is no material, the corresponding feed cylinder 8 opens, and the storage tank starts unloading.

[0029] In this embodiment, the opening and closing mechanism includes a baffle 11 rotatably connected to the discharge port and a rotary cylinder 12 provided on the outer wall of the housing 3, the telescopic rod of the rotary cylinder 12 is connected to the baffle 11, and the cylinder barrel of the rotary cylinder 12 is connected through a bracket. When filling is required, the rotary cylinder 12 drives the baffle 11 to open the discharge port to achieve filling, and when the filling is completed, the rotary cylinder 12 drives the baffle 11 to close the discharge port. The rotary cylinder 12 can use an SMC rotary swing cylinder, model CDRB2BWU40 series, with an output torque of 3.8N / m, a maximum rotation of 270 degrees and adjustable, and a cylinder length of 107mm.

[0030] In this embodiment, in order to realize intelligent control, the powder filling device also includes a PLC control system, and the upper material level sensor 9, the lower material level sensor 10, the feed cylinder 8, the motor 6, the rotating cylinder 12 and the weighing mechanism 2 are all electrically connected to the control system.

[0031] Specifically, the working process of the present invention is described below with two filling mechanisms:

[0032] During filling, first ensure that there is material in the storage tank, the conveyor belt 12 conveys the two filling bottles 1 to the two feeding ports, and the screw rod 5 is turned on to feed the material, so that the material can be filled;

[0033] The rotary cylinder 12 of the feeding port is turned on, the material begins to enter the filling bottle 1, and the weighing mechanism 2 under the bottle feeds back the signal to the PLC in real time. When the weighing mechanism 2 detects that the material is about to reach the weighing weight (30g is still short for the optimal selection), the servo motor speed slows down and the feeding speed of the screw rod 5 slows down;

[0034] When the weighing mechanism 2 detects that the material has reached the required weight, the PLC signal is fed back to the rotary cylinder 12 to close the corresponding discharge port, and the other side continues to feed until the required weight is reached, and the corresponding discharge port is closed at the same time. At this time, the conveyor belt 12 is activated, and the two filling bottles 1 are conveyed out;

[0035] When the lower material level sensor 10 in the shell 3 on either side detects that the material is insufficient, the corresponding feed cylinder 8 is opened and the storage tank starts to discharge the material; when the upper material level sensor 9 in the shell 3 on either side detects that the material is sufficient, the corresponding feed cylinder 8 is closed.

[0036] The existing filling machine needs 50 seconds to fill one bottle with a single head. With the present invention, when two bottles are filled at the same time, it only takes about 60 seconds to fill two bottles, which effectively saves time and improves filling efficiency.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A powder filling device, characterized in that: It includes a filling bottle for containing powder, a weighing mechanism is provided at the bottom of the filling bottle, and a storage tank, a plurality of filling mechanisms are provided at the lower end of the storage tank; The filling mechanism includes a shell, a feeding port for filling powder into the filling bottle is provided at the lower end of the shell, a driving mechanism for driving the powder to be discharged is provided inside the shell corresponding to the feeding port, and an opening and closing mechanism for opening and closing the feeding port is also provided, and the driving mechanism and the opening and closing mechanism are both electrically connected to the weighing mechanism.

2. The powder filling device according to claim 1, characterized in that: A discharge pipe is provided at the lower end of the storage tank, and the upper ends of the plurality of shells are all connected to the discharge ports of the discharge pipe.

3. The powder filling device according to claim 2, characterized in that: The shell comprises a feeding part and a filling part which are arranged obliquely with respect to each other, the other end of the feeding part is connected to the discharge pipe, and the driving mechanism is arranged at the filling part.

4. The powder filling device according to claim 3, characterized in that: The angle between the feeding part and the filling part is a, and the value range of a is 135-145°.

5. The powder filling device according to claim 1, characterized in that: The driving mechanism comprises a screw rod arranged inside the shell and a motor arranged on the outer wall of the shell, and the output shaft of the motor is connected to the screw rod.

6. The powder filling device according to any one of claims 1 to 5, characterized in that: The port at one end of the shell body connected to the storage tank is a feed port, and a feed plate is provided on the feed port. The feed plate is driven to open and close by a feed cylinder.

7. The powder filling device according to claim 6, characterized in that: An upper material level sensor and a lower material level sensor for detecting the position of powder are provided inside the shell, and the upper material level sensor is arranged above the lower material level sensor, and the upper material level sensor and the lower material level sensor are both electrically connected to the feeding cylinder.

8. The powder filling device according to claim 7, characterized in that: It comprises a control system, and the upper material level sensor, the lower material level sensor, the feed cylinder, the drive mechanism, the opening and closing mechanism and the weighing mechanism are all electrically connected to the control system.

9. The powder filling device according to any one of claims 1 to 5, characterized in that: The opening and closing mechanism comprises a baffle rotatably connected to the feed opening and a rotary cylinder arranged on the outer wall of the shell, wherein the rotary cylinder is connected to the baffle.

10. The powder filling device according to any one of claims 1 to 5, characterized in that: A conveyor belt is included, and the filling bottles are arranged on the conveyor belt.

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