Powder filling mechanism and dispensing machine based on coaxial drive

Abstract

The present invention relates to a powder filling mechanism based on coaxial drive and a filling machine including the powder filling mechanism based on coaxial drive, including a powder tray, a driving device and a filling needle; the powder tray has a cavity for accommodating powder, the cavity is composed of a base and a side wall extending from the base, the powder tray has a covering powder tray cover, the powder tray cover is provided with a powder suction hole, the powder tray is provided with a stirring piece for loosening the powder, the driving device drives the powder tray to rise and fall and rotate through a main shaft, and / or the driving device drives the filling needle to rise and fall. The above-mentioned powder filling mechanism based on coaxial drive can greatly improve work efficiency and reduce production costs. At the same time, it can also reduce the labor intensity of employees, avoid polluting powder and endangering the health of employees.

Description

Technical Field

[0001] The present invention relates to the field of pharmaceutical product packaging, and in particular to a powder filling mechanism based on coaxial drive and a filling machine comprising the powder filling mechanism based on coaxial drive. Background Art

[0002] With the development of social economy, science and technology and the increase of employee costs, automated production has become increasingly important. Automatic production line refers to a production organization form in which the product process is realized by an automated machine system. It is formed on the basis of the further development of the continuous assembly line. Its characteristics are: the processing object is automatically transferred from one machine tool to another, and the machine tool automatically processes, loads and unloads, and inspects; the worker's task is only to adjust, supervise and manage the automatic line, and does not participate in direct operation; all machines and equipment operate at a unified rhythm, and the production process is highly continuous.

[0003] For powder filling, a filling machine is basically used to fill a certain volume of powder into containers in equal amounts. During the filling process, the operating requirements for employees are very high. During the operation, they need to wear various labor protection products to prevent the powder from being contaminated and entering the human body, causing certain damage to the employees' bodies, which will greatly increase production costs and reduce production efficiency. Summary of the invention

[0004] In order to overcome the above technical problems that the filling has high requirements on employee operation, high production cost and low efficiency, the present invention provides a powder filling mechanism based on coaxial drive and a filling machine including the powder filling mechanism based on coaxial drive.

[0005] A powder filling mechanism based on coaxial drive comprises a powder tray, a driving device and a filling needle; the powder tray has a cavity for accommodating powder, the cavity consists of a base and a side wall extending from the base, the powder tray is covered with a powder tray cover, the powder tray cover is provided with powder suction holes, the powder tray is provided with a stirring element for loosening the powder, the driving device drives the powder tray to rise and fall and rotate through a main shaft, and / or the driving device drives the filling needle to rise and fall.

[0006] In one embodiment, the driving device includes a first driving device, a second driving device and a third driving device connected to the filling needle, the first driving device is connected to the powder tray through a main shaft to drive the powder tray to rise and fall, the first driving device is connected to the stirring member to drive the stirring member to rise and fall, the second driving device is connected to the main shaft to drive the powder tray to rotate, and / or the third driving device drives the filling needle to rise and fall.

[0007] In one of the embodiments, it further comprises a table top, on which a shaft seat is provided, in which a shaft sleeve is installed, and the main shaft passes through the table top and the shaft sleeve in sequence and is connected to the bottom of the powder tray.

[0008] In one embodiment, the second driving device includes a second motor, a transmission mechanism, a first mounting plate, a second mounting plate and a first guide rod, the first end of the first guide rod passes through the first mounting plate and is connected to the transmission mechanism, the second end of the first guide rod passes through the second mounting plate and is fixedly connected to the table, and the nut on the first guide rod is fixedly installed in the second mounting plate to drive the second mounting plate to rise and fall, and the main shaft is fixedly passed through the second mounting plate to enable the second motor to drive the main shaft to rise and fall.

[0009] In one embodiment, the second driving device also includes a second guide rod, a first end of the second guide rod is fixedly connected to the first mounting plate, a second end of the second guide rod passes through the second mounting plate and is fixedly connected to the table, and the nut on the second guide rod is fixedly installed in the second mounting plate.

[0010] In one embodiment, the second end of the first guide rod is axially fixedly connected to the table via a second bearing, and the second end of the second guide rod is axially fixedly connected to the table via a third bearing.

[0011] In one embodiment, the transmission mechanism includes a driving wheel, a driven wheel, and a conveyor belt mounted on the driving wheel and the driven wheel, the driving wheel is connected to the output shaft of the second motor, and the driven wheel is connected to the first end of the first guide rod.

[0012] In one of the embodiments, a powder level detection sensor is provided in the powder tray, and the powder level detection sensor passes through the powder tray cover and extends into the powder tray.

[0013] In one embodiment, a first bearing is sleeved on the first end of the main shaft, and the stirring member is connected to the outer ring of the first bearing through a first connecting rod.

[0014] In one of the embodiments, a smoothing piece is further provided in the powder tray, and the smoothing piece includes a vertical rod and a smoothing plate connected to the vertical rod, the vertical rod is connected to the powder tray cover, and a scale is provided on the vertical rod.

[0015] In one embodiment, the stirring member includes a connecting rod and a comb-shaped stirring rod connected to the connecting rod, and the connecting rod is provided with a scale.

[0016] In one embodiment, the first driving device is a first motor.

[0017] In one embodiment, a first groove and a second groove are provided on the base, and the bottom surface of the first groove is a cylindrical surface, and / or the bottom surface of the second groove is a cylindrical surface.

[0018] In one embodiment, the second groove is an arc-shaped groove, and / or the first groove is an arc-shaped groove.

[0019] In one embodiment, the powder suction hole is an arc-shaped hole.

[0020] In one of the embodiments, a mounting seat is sleeved on the main shaft, at least one column is provided on the mounting seat, and the powder tray cover is fixed in the column by bolts.

[0021] The present invention also provides a filling machine, comprising the above-mentioned powder filling mechanism based on coaxial drive.

[0022] The present invention enables the powder filling mechanism based on coaxial drive to automatically fill powder by coordinating the driving device with the powder tray and the filling needle. The driving device is connected to the powder tray through the main shaft to drive the powder tray to lift and lower to achieve filling of low powder levels in the powder tray, or the driving device is connected to the filling needle to drive the filling needle to achieve filling of low powder levels in the powder tray. This can greatly improve work efficiency and reduce production costs. At the same time, it can also reduce the labor intensity of employees, avoid polluting powder and endangering the health of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 A schematic diagram of a powder filling mechanism based on coaxial drive provided in an embodiment of the present invention;

[0024] Figure 2 Schematic diagram of a powder filling mechanism based on coaxial drive in an embodiment of the present invention;

[0025] Among them, 1 powder tray, 11 first groove, 12 second groove, 13 powder tray cover, 131 powder suction hole, 14 smoothing piece, 141 vertical rod, 142 smoothing plate, 15 stirring piece, 16 first connecting rod, 17 powder level detection sensor, 2 first driving device, 3 second driving device, 31 second motor, 32 transmission mechanism, 321 driving wheel, 322 driven wheel, 323 conveyor belt, 34 second mounting plate, 35 first guide rod, 36 second guide rod, 4 main shaft, 41 first bearing, 42 mounting seat, 5 table, 51 shaft seat, 52 shaft sleeve, 6 filling needle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific implementation disclosed below.

[0027] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0029] like Figure 1 As shown, a powder filling mechanism based on coaxial drive includes a powder tray 1, a driving device and a filling needle 6; the powder tray 1 has a cavity for accommodating powder, the cavity is composed of a base and a side wall extending from the base, the powder tray 1 is covered with a powder tray cover 13, the powder tray cover 13 is provided with a powder suction hole 131, the powder tray 1 is provided with a stirring member 15 for loosening the powder, the driving device drives the powder tray 1 to rise and fall and rotate through the main shaft 4, and / or the driving device drives the filling needle 6 to rise and fall.

[0030] The present invention enables the powder filling mechanism based on coaxial drive to automatically fill powder by coordinating the driving device with the powder tray and the filling needle. The driving device is connected to the powder tray through the main shaft to drive the powder tray to lift and lower to achieve filling of low powder levels in the powder tray, or the driving device is connected to the filling needle to drive the filling needle to achieve filling of low powder levels in the powder tray. This can greatly improve work efficiency and reduce production costs. At the same time, it can also reduce the labor intensity of employees, avoid polluting powder and endangering the health of employees.

[0031] In a preferred embodiment, the driving device includes a first driving device 2, a second driving device 3 and a third driving device connected to the filling needle 6. The first driving device 2 is connected to the powder tray 1 through the main shaft 4 to drive the powder tray 1 to rise and fall. The first driving device 2 is connected to the stirring member 15 to drive the stirring member 15 to rise and fall. The second driving device 3 is connected to the main shaft 4 to drive the powder tray 1 to rotate, and / or the third driving device drives the filling needle 6 to rise and fall.

[0032] Specifically, when the powder filling mechanism based on the coaxial drive operates normally, the powder tray rotates with the second drive device, and the stirring member does not move at this time, thereby loosening the powder and preventing the powder from agglomerating. When the powder in the powder tray drops below the stirring member, the stirring member drops with the first drive device, and the powder tray does not move at this time, achieving the effect of loosening the powder at a low powder level. For the process of absorbing powder, the filling needle enters the powder tray through the powder suction hole to absorb the powder. When the powder in the powder tray drops, there are three ways to absorb the powder: 1) The first drive device drives the powder tray to rise to the position where the filling needle can absorb the powder, and the filling needle does not move during this process; 2) The first drive device does not move, and the filling needle is driven by the third drive device to drop to the position where the powder is absorbed; 3) The second drive device and the third drive device move simultaneously, the second drive device drives the powder tray to rise, and the third drive device drives the filling needle to drop. The above three methods can be used to complete low powder level filling of powder.

[0033] In a preferred embodiment, the powder filling mechanism based on coaxial drive further includes a table 5, on which is disposed a shaft seat 51. In order to reduce the friction between the main shaft 4 and the shaft seat 51 and the table, a shaft sleeve 52 is installed in the shaft seat 51, and the main shaft 4 passes through the table 5 and the shaft sleeve 52 in sequence and is connected to the bottom of the powder tray 1.

[0034] In a preferred embodiment, if Figure 1 As shown, the second driving device 3 includes a second motor 31, a transmission mechanism 32, a first mounting plate 33, a second mounting plate 34 and a first guide rod 35. The first end of the first guide rod 35 passes through the first mounting plate 33 and is connected to the transmission mechanism 32. The second end of the first guide rod 35 passes through the second mounting plate 34 and is fixedly connected to the table 5. The nut on the first guide rod 25 is fixedly installed in the second mounting plate 34 to drive the second mounting plate 34 to rotate. The main shaft 4 is fixedly passed through the second mounting plate 34 to enable the second motor 31 to drive the main shaft 4 to rotate.

[0035] When the second motor 31 moves, the transmission mechanism 32 drives the first guide rod 35 to rotate. The nut of the first guide rod 35 is fixedly installed in the second mounting plate 34. The main shaft 4 is fixed through the second mounting plate 34. The transmission mechanism 32 drives the first guide rod 35 to rotate. The main shaft 4 rotates with the first filling screw 35 and cooperates with the stirring element 15 to achieve the purpose of loosening the powder.

[0036] In another preferred embodiment, the second driving device 3 also includes a second guide rod 36, the first end of the second guide rod 36 is fixedly connected to the first mounting plate 33, the second end of the second guide rod 36 passes through the second mounting plate 34 and is fixedly connected to the table plate 5, and the nut on the second guide rod 36 is fixedly installed in the second mounting plate 34.

[0037] In the above two embodiments, the first guide rod 35 and the second guide rod 36 are both ball screws.

[0038] It should be noted here that the guide rod in the above two embodiments can be replaced by other components, such as a transmission shaft with a gear sleeve, wherein the first end of the transmission shaft is fixedly connected to the table, and the other end of the transmission shaft passes through the second mounting plate to be connected to the transmission mechanism, and the gear on the transmission shaft is installed in the second mounting plate, and a channel that cooperates with the gear is provided in the mounting plate. The purpose of driving the powder plate to rotate is achieved through the cooperation between the gear and the channel.

[0039] Furthermore, the second end of the first guide rod 35 is axially fixedly connected to the table via a second bearing, and the second end of the second guide rod 36 is axially fixedly connected to the table via a third bearing, so that the first guide rod 35 and the second guide rod can move in the vertical direction, while the horizontal movement is restricted.

[0040] Furthermore, the transmission mechanism 32 includes a driving wheel 321, a driven wheel 322, and a conveyor belt 323 sleeved on the driving wheel 321 and the driven wheel 322. The driving wheel 321 is connected to the output shaft 31 of the second motor, and the driven wheel 322 is connected to the first end of the first guide rod 35. When the second motor 31 is running, the driving wheel 321 drives the driven wheel 322 to move through the conveyor belt 323. Since the first guide rod 35 is connected to the driven wheel 322, the first guide rod 35 rotates with the driven wheel 322.

[0041] In order to monitor the level of powder in the powder tray 1, in a preferred embodiment, a powder level detection sensor 17 is provided in the powder tray 1, and the powder level detection sensor 17 extends into the powder tray 1 through the powder tray cover 13. The amount of powder in the powder tray 1 can be monitored at any time through the powder level detection sensor 17. If the amount of powder in the powder tray 1 is too little, the powder can be replenished in time to prevent the suspension of powder filling.

[0042] In order to enable the stirring member 15 to rise and fall with the main shaft 4, a first bearing 41 is sleeved on the first end of the main shaft 4, and the stirring member 15 is connected to the outer ring of the first bearing 41 through a first connecting rod 16. Figure 2 shown.

[0043] In the powder tray 1, the powder heights at different locations are different, which will affect the monitoring accuracy of the powder detection sensor 17. Therefore, a smoothing mechanism needs to be provided in the powder tray to improve the monitoring accuracy of the powder detection sensor 17. A smoothing member 14 is also provided in the powder tray 1, and the first end of the smoothing member 14 is fixedly connected to the powder tray cover 13. The powder tray cover 13 is fixed and does not move. When the smoothing member 14 smoothes the powder at a low powder level, the first driving device 2 needs to drive the powder tray 1 to rise in order to smooth the powder at a low powder level.

[0044] In a preferred embodiment, the structure of the smoothing member can be selected and adjusted accordingly according to the needs of those skilled in the art. The smoothing member 14 includes a vertical rod 141 and a smoothing plate 142 connected to the vertical rod 141, the vertical rod 141 is connected to the powder tray cover 13, and the vertical rod 141 is provided with a scale.

[0045] In another preferred embodiment, the stirring member 15 includes a connecting rod and a comb-shaped stirring rod connected to the connecting rod, and a scale is provided on the connecting rod.

[0046] In the above two embodiments, scales are provided on the connecting rod and the vertical rod 141. After the disassembled stirring member 15 and the smoothing member 14 are cleaned, they can be quickly installed according to the scales on the connecting rod and the vertical rod 141 during the installation process. This can greatly save installation time and improve work efficiency.

[0047] Optionally, the first driving device may be a driving device well known to those skilled in the art. In the embodiment, the first driving device 2 is a first motor.

[0048] Since the capacity of the powder pan is relatively large, it is difficult to loosen or smooth the powder. Therefore, a first groove 11 and a second groove 12 are provided on the base. The stirring member 15 is placed in the second groove 12, and the smoothing member is placed in the first groove 12.

[0049] Further, in order to gather the powder in the powder tray 1 , the second groove 12 is an arc-shaped groove, and / or the first groove 11 is an arc-shaped groove.

[0050] In other embodiments, the shape of the groove may be any other shape capable of aggregating powder.

[0051] Furthermore, the bottom surface of the first groove 11 is a cylindrical surface, and / or the bottom surface of the second groove 12 is a cylindrical surface, which can solve the problem of residual powder in the powder tray 1. When less powder remains in the powder tray 1, a small amount of powder is transferred to the first groove 11, and the powder in the first groove 11 is sucked by the filling needle 6, thereby reducing the amount of residual powder.

[0052] In order to cooperate with the first groove 11 to absorb powder, the powder suction hole 131 is an arc-shaped hole.

[0053] In a preferred embodiment, a mounting seat 42 is sleeved on the main shaft 4, and at least one column is provided on the mounting seat 42. The powder tray cover 13 is detachably connected to the mounting seat 42 to fix the powder tray cover 13.

[0054] Furthermore, the detachable connection between the powder tray cover 13 and the mounting seat 42 is achieved by bolts, such as Figure 2 As shown. The number of columns can be selected and adjusted accordingly according to the needs. In this embodiment, the number of columns is 3.

[0055] The present invention further provides a filling machine, which includes the powder filling mechanism based on coaxial drive as described in any one of the above embodiments.

[0056] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0057] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A powder filling mechanism based on coaxial drive, comprising a powder tray (1), a driving device and a filling needle (6); The powder tray (1) has a cavity for accommodating powder, the cavity is composed of a base and a side wall extending from the base, the powder tray (1) is covered with a powder tray cover (13), the powder tray cover (13) is provided with a powder suction hole (131), and the powder tray (1) is provided with a stirring member (15) for loosening the powder, characterized in that: The driving device drives the powder tray (1) to rise and fall and rotate via the main shaft (4), and / or the driving device drives the filling needle (6) to rise and fall; The driving device comprises a first driving device (2) and a second driving device (3); the first driving device (2) is connected to the powder pan (1) via the main shaft (4) to drive the powder pan (1) to rise and fall; the first driving device (2) is connected to the stirring member (15) to drive the stirring member (15) to rise and fall; the second driving device (3) is connected to the main shaft (4) to drive the powder pan (1) to rotate.

2. The powder filling mechanism based on coaxial drive according to claim 1 is characterized in that: The driving device further comprises a third driving device connected to the filling needle (6), and the third driving device drives the filling needle (6) to rise and fall.

3. The powder filling mechanism based on coaxial drive according to claim 1 is characterized in that: It also comprises a table top (5), on which a shaft seat (51) is provided, in which a shaft sleeve (52) is installed, and the main shaft (4) passes through the table top (5), the shaft sleeve (52) and the bottom of the powder tray (1) in sequence.

4. The powder filling mechanism based on coaxial drive according to claim 3 is characterized in that: The second driving device (3) comprises a second motor (31), a transmission mechanism (32), a first mounting plate (33), a second mounting plate (34) and a first guide rod (35); a first end of the first guide rod (35) passes through the first mounting plate (33) and the transmission mechanism (32); a second end of the first guide rod (35) passes through the second mounting plate (34) and is fixedly connected to the table (5); a nut on the first guide rod (35) is fixedly installed in the second mounting plate (34) to drive the second mounting plate (34) to rotate; and the main shaft (4) is fixedly passed through the second mounting plate (34) so ​​as to enable the second motor (31) to drive the main shaft (4) to rotate.

5. The powder filling mechanism based on coaxial drive according to claim 4 is characterized in that: The second driving device (3) further comprises a second guide rod (36), a first end of the second guide rod (36) being fixedly connected to the first mounting plate (33), a second end of the second guide rod (36) passing through the second mounting plate (34) and being fixedly connected to the table plate (5), and a nut on the second guide rod (36) being fixedly mounted in the second mounting plate (34).

6. The powder filling mechanism based on coaxial drive according to claim 5 is characterized in that: The second end of the first guide rod (35) is axially fixedly connected to the table plate (5) via a second bearing, and the second end of the second guide rod (36) is axially fixedly connected to the table plate (5) via a third bearing.

7. The powder filling mechanism based on coaxial drive according to claim 4 is characterized in that: The transmission mechanism (32) comprises a driving wheel (321), a driven wheel (322) and a conveyor belt (323) sleeved on the driving wheel (321) and the driven wheel (322); the driving wheel (321) is connected to the output shaft of the second motor (31); and the driven wheel (322) is connected to the first end of the first guide rod (35).

8. The powder filling mechanism based on coaxial drive according to claim 1 is characterized in that: The powder tray (1) is provided with a powder level detection sensor (17), and the powder level detection sensor (17) passes through the powder tray cover (13) and extends into the powder tray (1).

9. The powder filling mechanism based on coaxial drive according to claim 1, characterized in that: A first bearing (41) is sleeved on the first end of the main shaft (4), and the stirring member (15) is connected to the outer ring of the first bearing (41) via a first connecting rod (16).

10. The powder filling mechanism based on coaxial drive according to claim 1, characterized in that: A smoothing piece (14) is also provided in the powder tray (1), and the smoothing piece (14) comprises a vertical rod (141) and a smoothing plate (142) connected to the vertical rod (141), a first end of the vertical rod (141) is connected to the powder tray cover (13), and a scale is provided on the vertical rod (141).

11. The powder filling mechanism based on coaxial drive according to claim 1, characterized in that: The stirring member (15) comprises a connecting rod and a comb-shaped stirring rod connected to the connecting rod, and a scale is provided on the first end of the connecting rod.

12. The powder filling mechanism based on coaxial drive according to claim 1, characterized in that: The base is provided with a first groove (11) and a second groove (12); the bottom surface of the first groove (11) is a cylindrical surface, and / or the bottom surface of the second groove (12) is a cylindrical surface.

13. The powder filling mechanism based on coaxial drive according to any one of claims 1 to 12, characterized in that: A mounting seat (42) is sleeved on the main shaft, and at least one upright column is provided on the mounting seat (42), and the powder tray cover (13) is fixed in the upright column by means of bolts.

14. A packaging machine, characterized in that: A powder filling mechanism based on coaxial drive comprising any one of claims 1 to 13.

Images