Feeding device of rotary tablet press

Abstract

The utility model discloses a feeding device of a rotary tablet press, which comprises a tablet press shell, a material storage barrel is fixedly connected onto the tablet press shell, the bottom of the material storage barrel is fixedly connected with a blanking pipe, a knocking component acting on the material storage barrel is arranged in the tablet press shell, the knocking component comprises a fixed shell, and the fixed shell is fixedly connected with the material storage barrel. The fixed shell is fixedly connected to the interior of the tablet press shell, the knocking plate is rotationally arranged on the fixed shell, the reset tension spring and the driving assembly are both arranged on the fixed shell, and the reset tension spring and the driving assembly are used for driving the knocking plate to swing back and forth to knock the storage barrel. According to the tablet press, the tablet press shell, the material storage barrel, the discharging pipe and the knocking assembly are used in a matched mode, under the action of the driving assembly and the reset tension spring, the knocking plate can move back and forth to knock the discharging pipe, the situation that materials in the discharging pipe are blocked is avoided, the discharging pipe can be protected through the protective lantern ring, and the safety of the tablet press is improved. And the knocking plate is prevented from sinking during knocking.

Description

Technical Field

[0001] The utility model relates to the field of feeding devices, in particular to a feeding device for a rotary tablet press. Background Art

[0002] A rotary tablet press is a device for tableting powder materials. A rotary tablet press usually consists of a rotating pressing wheel and a feeding device. The feeding device usually consists of a cylindrical cone-bottom hopper and a moon-shaped reflux grid feeder.

[0003] When the rotary tablet press is working, although the moon-shaped reflux grid feeder can generate a suction force, when the powder material flows from the cylindrical cone-bottom hopper to the moon-shaped reflux grid feeder, the flow path of the powder material gradually shrinks, so that the powder material will still accumulate and be blocked between the cylindrical cone-bottom hopper and the moon-shaped reflux grid feeder. It is not convenient to apply a knocking vibration force to the cylindrical cone-bottom hopper and the moon-shaped reflux grid feeder to reduce the blockage of the powder material inside the cylindrical cone-bottom hopper and the moon-shaped reflux grid feeder. Utility Model Content

[0004] The purpose of the utility model is to provide a feeding device for a rotary tablet press to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a feeding device of a rotary tablet press, comprising a tablet press housing, a material storage barrel is fixedly connected to the tablet press housing, and a material discharge pipe is fixedly connected to the bottom of the material storage barrel;

[0006] The inside of the tablet press housing is provided with a knocking assembly acting on the storage barrel, and the knocking assembly comprises:

[0007] A fixed housing, wherein the fixed housing is fixedly connected to the interior of the tablet press housing;

[0008] A knocking plate, the knocking plate is rotatably arranged on the fixed shell;

[0009] A reset tension spring and a driving assembly are both arranged on a fixed shell, and are used to drive the knocking plate to swing back and forth to knock the storage barrel.

[0010] Preferably, a protective collar is fixedly sleeved on the bottom of the outer wall of the storage barrel, the ends of the knocking plate are a first straight portion and a second straight portion, the middle portion of the knocking plate is an arc curved portion, and the first straight portion fits with the protective collar.

[0011] Preferably, the second straight portion is fixedly connected to a reset tension spring, one end of the reset tension spring is fixedly connected to a fixed shell, and a limiting rod corresponding to the knocking plate is fixedly connected inside the fixed shell.

[0012] Preferably, a fixed shaft is fixedly connected to the interior of the fixed shell, and the outer wall of the fixed shaft is rotatably inserted and sleeved with the knocking plate. An opening matching the knocking plate is opened on one side of the fixed shell.

[0013] Preferably, the driving assembly comprises:

[0014] A servo motor and a transmission shaft, wherein the servo motor is fixedly connected to the top of the fixed housing, and the output end of the servo motor is transmission-connected to the transmission shaft;

[0015] A driving protrusion is fixedly mounted on the outer wall of the transmission shaft, and the driving protrusion rotates with the transmission shaft to squeeze the knocking plate.

[0016] Preferably, a connecting ring is fixedly connected to one side of the driving protrusion, and the connecting ring is slidably sleeved on the outer wall of the transmission shaft. A connecting bolt is slidably inserted and sleeved on one side of the connecting ring, and one end of the outer wall of the connecting bolt is threadably inserted and sleeved with the transmission shaft.

[0017] Preferably, a fixing plate is fixedly connected to a side of the fixed shell, a fixing bolt is provided on one side of the fixing plate, and the fixing plate is fixedly connected to the tablet press shell through the fixing bolt.

[0018] Technical effects and advantages of the utility model:

[0019] The utility model utilizes the coordinated use of a tablet press housing, a material storage barrel, a feed tube and a knocking assembly. The knocking assembly includes a knocking assembly, a fixed housing, a knocking plate, a reset spring and a moving assembly. Under the action of the driving assembly and the reset spring, the knocking plate can move back and forth to knock the feed tube to avoid clogging of materials inside the feed tube, and the protective collar can protect the feed tube to prevent the knocking plate from being dented when knocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0021] Figure 2 This is a schematic diagram of the overall structure of the storage barrel of the utility model.

[0022] Figure 3 It is a schematic diagram of the internal structure of the fixed shell of the utility model from above.

[0023] In the figure: 1. tablet press housing; 2. storage barrel; 21. discharge pipe; 3. knocking assembly; 31. fixed housing; 32. knocking plate; 33. reset spring; 341. transmission shaft; 342. servo motor; 343. driving bump; 344. connecting collar; 345. connecting bolt; 35. protective collar; 36. fixed shaft; 37. opening; 38. limit rod; 39. fixed plate; 310. fixing bolt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] The utility model provides Figure 1-3 The feeding device of a rotary tablet press shown in the figure comprises a tablet press housing 1, a material storage barrel 2 is fixedly connected to the tablet press housing 1, a material discharge pipe 21 is fixedly connected to the bottom of the material storage barrel 2, a knocking assembly 3 acting on the material storage barrel 2 is arranged inside the tablet press housing 1, the knocking assembly 3 comprises a fixed housing 31, a knocking plate 32, a reset spring 33 and a driving assembly, the fixed housing 31 is fixedly connected to the inside of the tablet press housing 1, the knocking plate 32 is rotatably arranged on the fixed housing 31, and the reset spring 33 and the driving assembly are both arranged on the fixed housing 31 Under the action of the driving component, the knocking plate 32 can be rotated, thereby increasing the distance between the knocking plate 32 and the bottom of the storage barrel 2, and the knocking plate 32 stretches the tension spring until the driving component is separated from the knocking plate 32, and the reset tension spring 33 pulls the knocking plate 32 to reset, so that the knocking plate 32 can knock on the bottom of the storage barrel 2, thereby causing the storage barrel 2 and the discharge pipe 21 to vibrate, thereby reducing the accumulation and blockage of powder material inside them, and the reset tension spring 33 and the driving component are used to drive the knocking plate 32 to swing back and forth to knock on the storage barrel 2.

[0026] Furthermore, a protective collar 35 is fixedly sleeved on the bottom of the outer wall of the storage barrel 2. The protective collar 35 is made of rubber, so that when the knocking plate 32 knocks the storage barrel 2, the protective collar 35 can buffer the impact force generated by the knocking plate 32, and the bottom of the storage barrel 2 will still be subjected to an impact force, thereby preventing the knocking plate 32 from directly knocking the storage barrel 2, causing impact dents to be generated on the surface of the storage barrel 2. The ends of the knocking plate 32 are the first straight portion and the second straight portion, and the middle portion of the knocking plate 32 is a circular arc curved portion, that is, Figure 3As shown, the first straight portion is fitted with the protective ring 35, the second straight portion is fixedly connected to the reset spring 33, one end of the reset spring 33 is fixedly connected to the fixed shell 31, and the interior of the fixed shell 31 is fixedly connected with a limit rod 38 corresponding to the knocking plate 32, the limit rod 38 can block and limit the knocking plate 32 to prevent the protective ring 35 at the bottom of the outer wall of the storage barrel 2 from being damaged and falling, and the knocking plate 32 directly knocks on the bottom of the storage barrel 2, and the interior of the fixed shell 31 is fixedly connected with a fixed shaft 36, the outer wall of the fixed shaft 36 is rotatably interlaced and sleeved with the knocking plate 32, and one side of the fixed shell 31 is provided with an opening 37 matching the knocking plate 32.

[0027] Furthermore, the driving assembly includes a driving protrusion 343, a servo motor 342 and a transmission shaft 341. The servo motor 342 is fixedly connected to the top of the fixed housing 31. The output end of the servo motor 342 is transmission-connected to the transmission shaft 341. The driving protrusion 343 is fixedly installed on the outer wall of the transmission shaft 341. The driving protrusion 343 rotates with the transmission shaft 341 to squeeze the knocking plate 32. When the servo motor 342 drives the transmission shaft 341 to rotate, the transmission shaft 341 drives the driving protrusion 343 to rotate through the connecting ring 344, so that the driving protrusion 343 squeezes the knocking plate 32. When the driving block 343 is separated, the reset spring 33 pulls the knocking plate 32 to reset and rotate, so that the knocking plate 32 knocks the protective ring 35 on the outer wall of the storage barrel 2. One side of the driving protrusion 343 is fixedly connected with a connecting ring 344, and the connecting ring 344 is slidably sleeved on the outer wall of the transmission shaft 341. One side of the connecting ring 344 is slidably inserted and sleeved with a connecting bolt 345. One end of the outer wall of the connecting bolt 345 is threadedly inserted and sleeved with the transmission shaft 341. By removing the connecting bolt 345, the connecting ring 344 and the driving protrusion 343 can be disassembled. The servo motor 342 is electrically connected to an external power supply through an external servo motor switch.

[0028] Specifically, a fixing plate 39 is fixedly connected to the side of the fixed shell 31, and a fixing bolt 310 is provided on one side of the fixing plate 39. The fixing plate 39 is fixedly connected to the tablet press shell 1 through the fixing bolt 310. By removing the fixing bolt 310, the fixed shell 31 can be disassembled, thereby facilitating the disassembly or installation of the entire knocking assembly 3.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding device for a rotary tablet press, comprising a tablet press housing (1), a material storage barrel (2) being fixedly connected to the tablet press housing (1), and a material discharge pipe (21) being fixedly connected to the bottom of the material storage barrel (2); It is characterized in that A knocking assembly (3) for acting on the material storage barrel (2) is arranged inside the tablet press housing (1), and the knocking assembly (3) comprises: A fixed housing (31), wherein the fixed housing (31) is fixedly connected to the interior of the tablet press housing (1); A knocking plate (32), wherein the knocking plate (32) is rotatably disposed on the fixed housing (31); A reset tension spring (33) and a driving assembly, wherein the reset tension spring (33) and the driving assembly are both arranged on a fixed housing (31), and the reset tension spring (33) and the driving assembly are used to drive a knocking plate (32) to swing back and forth to knock the material storage barrel (2).

2. A feeding device for a rotary tablet press according to claim 1, characterized in that: A protective collar (35) is fixedly sleeved on the bottom of the outer wall of the storage barrel (2); the ends of the knocking plate (32) are a first straight portion and a second straight portion; the middle portion of the knocking plate (32) is an arc-shaped portion; and the first straight portion fits the protective collar (35).

3. A feeding device for a rotary tablet press according to claim 2, characterized in that: The second straight portion is fixedly connected to a reset tension spring (33), one end of the reset tension spring (33) is fixedly connected to a fixed housing (31), and a limit rod (38) corresponding to the knocking plate (32) is fixedly connected inside the fixed housing (31).

4. A feeding device for a rotary tablet press according to claim 3, characterized in that: A fixed shaft (36) is fixedly connected inside the fixed shell (31), and the outer wall of the fixed shaft (36) is rotatably inserted and sleeved with the knocking plate (32). An opening (37) matching the knocking plate (32) is provided on one side of the fixed shell (31).

5. The feeding device of a rotary tablet press according to claim 1, characterized in that: The drive assembly comprises: A servo motor (342) and a transmission shaft (341), wherein the servo motor (342) is fixedly connected to the top of the fixed housing (31), and an output end of the servo motor (342) is transmission-connected to the transmission shaft (341); A driving protrusion (343) is fixedly mounted on the outer wall of the transmission shaft (341), and the driving protrusion (343) rotates with the transmission shaft (341) to squeeze the knocking plate (32).

6. A feeding device for a rotary tablet press according to claim 5, characterized in that: A connecting ring (344) is fixedly connected to one side of the driving protrusion (343), and the connecting ring (344) is slidably sleeved on the outer wall of the transmission shaft (341). A connecting bolt (345) is slidably inserted and sleeved on one side of the connecting ring (344), and one end of the outer wall of the connecting bolt (345) is threadedly inserted and sleeved on the transmission shaft (341).

7. A feeding device for a rotary tablet press according to claim 1, characterized in that: A fixing plate (39) is fixedly connected to the side of the fixed housing (31), a fixing bolt (310) is provided on one side of the fixing plate (39), and the fixing plate (39) is fixedly connected to the tablet press housing (1) via the fixing bolt (310).

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