CN213501048U

CN213501048U - Pre-compaction wheel lifting adjusting device of tablet press

Info

Publication number: CN213501048U
Application number: CN202022047024.6U
Authority: CN
Inventors: 严学生; 赵平德; 倪东风
Original assignee: Shanghai Tianhe Pharmaceutical Machinery Co ltd
Current assignee: Shanghai Tianhe Pharmaceutical Machinery Co ltd
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-06-22
Anticipated expiration: 2030-09-18

Abstract

The application relates to a pre-compaction wheel lifting adjusting device of tablet press, including lift actuating mechanism and pre-compaction wheel installation axle, lift actuating mechanism includes the portion of going up and down, pre-compaction wheel installation axle rotates or fixes the upper end that sets up in the portion of going up and down. The pre-compaction wheel lifting adjusting device of tablet press of this application can directly adjust the height of installing the epaxial pre-compaction wheel of pre-compaction wheel installation through lift actuating mechanism when using, and is convenient, swift.

Description

Pre-compaction wheel lifting adjusting device of tablet press

Technical Field

The application relates to the field of tablet presses, especially relates to a pre-compaction wheel lifting adjusting device of tablet press.

Background

In the industries of medicine, chemical industry, food and the like in China, solid powder or granular materials with certain functions are usually pressed into tablets to form tablets or health care products. Machines for compressing tablets are commonly referred to as tablet presses. And a machine in which the middle mold is mounted on and rotated along with the turn table is called a rotary tablet press. In the high-speed rotary tablet press, because of the high rotating speed, a pre-pressing wheel is arranged for increasing the material pressing time. When the clearance between each pre-pressing wheel and the punching nail is too small and the pre-pressing amount is large, hard friction is generated between the punching nail and the track, and the punching nail and the track are easy to damage; when the clearance between each pre-pressing wheel and the punching nail is too large, the pre-pressing effect can not be achieved. Therefore, the pre-pressing position of the pre-pressing wheel needs to be adjusted up and down according to actual conditions. The pre-pressing wheel on the market at present is adjusted manually, so that the pre-pressing wheel is inconvenient to adjust.

SUMMERY OF THE UTILITY MODEL

In order to improve the inconvenient technical problem of above-mentioned pre-compaction wheel lift adjustment, this application provides a pre-compaction wheel lift adjustment device of tablet press.

The application provides a pre-compaction wheel lifting adjusting device of tablet press adopts following technical scheme:

the utility model provides a pre-compaction wheel lifting adjusting device of tablet press, includes lift actuating mechanism and pre-compaction wheel installation axle, lift actuating mechanism includes lift portion, pre-compaction wheel installation axle rotates or fixed the setting in the upper end of lift portion.

Through adopting above-mentioned technical scheme, the pre-compaction wheel lift adjustment device of tablet press of this application can directly adjust the height of installing the epaxial pre-compaction wheel of pre-compaction wheel through lift drive mechanism when using, and is convenient, swift.

Preferably, the upper portion of lift portion is provided with the U-shaped mounting groove that is used for installing the pre-compaction wheel, and relative two parts are cut apart into with the upper portion of lift portion to the U-shaped mounting groove, have seted up relative axle mounting hole on the two parts, the both ends of pre-compaction wheel installation axle are fixed to be set up in the axle mounting hole.

Preferably, the lifting driving mechanism is a worm gear screw rod lifter.

Preferably, the worm wheel and screw rod lifter comprises a shell, a worm wheel, a worm and a screw rod, wherein the worm wheel, the worm and the screw rod are arranged in the shell, the screw rod and the worm wheel are arranged coaxially, the screw rod is integrally formed on the upper surface of the worm wheel, and the axes of the screw rod and the worm wheel are vertical axes; the upper surface of the shell is also fixedly provided with a prepressing wheel frame, the prepressing wheel frame is of a cylindrical structure with a vertically through mounting hole, the upper surface of the shell is provided with a through hole which is vertically opposite to the mounting hole of the prepressing wheel frame, the lifting part is vertically movably arranged in the mounting hole in a guiding manner, the bottom surface of the lifting part is provided with a threaded hole which extends along the vertical direction, and the threaded hole is in threaded fit with the lead screw; the pre-pressing wheel carrier is also provided with a rotation limiting structure for limiting the rotation of the lifting part.

Preferably, both ends of the pre-pressing wheel installation shaft extend out of the shaft installation hole, a U-shaped containing groove corresponding to the U-shaped installation groove is further formed in the barrel wall of the pre-pressing wheel frame, the barrel wall is divided into two opposite parts by the U-shaped containing groove, two opposite limiting holes are formed in the two parts, both ends of the pre-pressing wheel installation shaft extend into the limiting holes, the limiting holes are used for limiting the pre-pressing wheel installation shaft in a circumferential rotation mode, the pre-pressing wheel installation shaft can move up and down in the limiting holes, and the limiting holes form the rotation limiting structures.

Preferably, the lifting device further comprises a motor, and an output shaft of the motor is in transmission connection with a worm of the worm gear screw rod lifter.

By adopting the technical scheme, the pre-pressing wheel can be adjusted more conveniently and quickly.

Preferably, a speed reducer is further arranged between the motor and the worm wheel screw rod lifter, an output shaft of the motor is in transmission connection with an input end of the speed reducer, and an output end of the speed reducer is in transmission connection with the worm.

Preferably, a proximity switch is further fixedly arranged on the speed reducer.

Through adopting above-mentioned technical scheme, realize the accurate regulation to the pre-compaction wheel lift.

Drawings

Fig. 1 is a schematic perspective view of a pre-pressing wheel lifting adjusting device of a tablet press according to an embodiment of the present application in use;

fig. 2 is a front view of a pre-compression wheel elevation adjustment device of the tablet press of fig. 1;

fig. 3 is a B-B sectional view of a pre-compression wheel elevation adjustment device of the tablet press of fig. 2;

fig. 4 is a sectional view taken along a-a direction of a pre-pressing wheel elevation adjustment device of the tablet press of fig. 2.

Description of reference numerals: 1. a lifting part; 11. a U-shaped mounting groove; 12. a shaft mounting hole; 13. a threaded hole; 2. a prepressing wheel mounting shaft; 3. a pre-pressing wheel; 4. a housing; 41. a worm gear; 42. a worm; 43. a screw rod; 5. pre-pressing the wheel carrier; 51. a U-shaped receiving slot; 52. a limiting hole; 6. a motor; 7. a speed reducer; 8. an L-shaped connecting plate; 9. a proximity switch.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1 and 2, the embodiment of the application discloses a pre-pressing wheel lifting adjusting device of a tablet press, which comprises a lifting driving mechanism and a pre-pressing wheel mounting shaft 2. The lifting driving mechanism is a worm gear lead screw lifter which comprises a shell 4, a lifting part 1, a worm wheel 41 arranged in the shell 4, a worm 42 and a lead screw 43.

Referring to fig. 3 and 4, the screw 43 is coaxially disposed with the worm wheel 41, the screw 43 is integrally formed on the upper surface of the worm wheel 41, and the axes of the screw 43 and the worm wheel 41 are vertical axes. The pre-pressing wheel mounting shaft 2 is fixedly arranged at the upper end of the lifting part 1. Specifically, the upper portion of lift portion 1 is provided with U-shaped mounting groove 11 that is used for installing pre-compaction wheel 3, and U-shaped mounting groove 11 is split into relative two parts with the upper portion of lift portion 1, has seted up relative axle mounting hole 12 in the two parts, and the axle mounting hole 12 in both sides is installed respectively at the both ends of pre-compaction wheel installation axle 2, and the both ends of pre-compaction wheel installation axle 2 outwards stretch out from axle mounting hole 12. Still fixedly on the upper surface of casing 4 is provided with pre-compaction wheel carrier 5, and pre-compaction wheel carrier 5 is the tubular structure who has the mounting hole that vertically link up, offers the through-hole relative from top to bottom with the mounting hole of pre-compaction wheel carrier 5 on the upper surface of casing 4. The shape of the mounting hole is adapted to the lifting part 1. The bottom surface of the lifting part 1 is provided with a threaded hole 13 extending along the vertical direction, the lifting part 1 is arranged in the mounting hole, and the threaded hole 13 of the lifting part 1 is in threaded fit with the screw rod 43. The wall of the pre-pressing wheel frame 5 is also provided with a U-shaped accommodating groove 51 corresponding to the U-shaped mounting groove 11, and the wall of the pre-pressing wheel frame is divided into two opposite parts by the U-shaped accommodating groove 51. The positions of the two parts of the cylinder wall close to the upper end are provided with oppositely arranged limiting holes 52. The two ends of the pre-pressing wheel mounting shaft 2 extending outwards from the shaft mounting hole 12 extend into the limiting holes 52. Spacing hole 52 is used for carrying out the circumferential direction to pre-compaction wheel installation axle 2 spacing, and pre-compaction wheel installation axle 2 can reciprocate in spacing hole 52, and spacing hole 52 forms the rotatory limit structure that rotates of restriction lift portion 1.

Referring to fig. 2 and 4, the pre-pressing wheel lifting adjusting device of the tablet press of the present embodiment further includes a motor 6 and a reducer 7. The output shaft of the motor 6 is in transmission connection with the input end of the speed reducer 7, and the output end of the speed reducer 7 is in transmission connection with the worm 42. The worm 42 is driven to rotate by the motor 6, so that the pre-pressing wheel 3 is adjusted more conveniently and quickly. In addition, still be provided with proximity switch 9 through the fixed bolt of L shape connecting plate 8 on the casing 4 of reduction gear 7 to the accurate regulation to pre-compaction wheel 3 lift is realized. The adoption of the proximity switch 9 for the precise control of the position of the moving part is a conventional technical means in the field, and the structure and the principle thereof are not described in detail.

The implementation principle of the embodiment of the application is as follows: when the prepressing wheel lifting adjusting device of the tablet press is used, the worm 42 is driven to rotate through the motor 6, the worm 42 rotates to drive the worm wheel 41 to rotate, the lead screw 43 is driven to rotate, the lead screw 43 is matched with the lifting part 1 to convert circumferential motion into guide movement in the vertical direction to move, and then the lifting adjusting of the prepressing wheel 3 is realized. The pre-compaction wheel lifting adjusting device of tablet press of this application can directly adjust the height of installing the pre-compaction wheel 3 on pre-compaction wheel installation axle 2 through motor 6 and lift actuating mechanism when using, and is convenient, swift.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a pre-compaction wheel lifting adjusting device of tablet press which characterized in that: including lift drive mechanism and pre-compaction wheel installation axle (2), lift drive mechanism includes lift portion (1), pre-compaction wheel installation axle (2) rotate or fixed the setting in the upper end of lift portion (1).

2. The pre-compression wheel lifting adjustment device of a tablet press according to claim 1, characterized in that: the upper portion of portion (1) that goes up and down is provided with U-shaped mounting groove (11) that are used for installing pre-pressing wheel (3), and relative two parts are cut apart into with the upper portion of portion (1) that goes up and down to U-shaped mounting groove (11), have seted up relative axle mounting hole (12) on two parts, the both ends of pre-pressing wheel installation axle (2) are fixed to be set up in axle mounting hole (12).

3. The pre-compression wheel lifting adjustment device of a tablet press according to claim 2, characterized in that: the lifting driving mechanism is a worm gear lead screw lifter.

4. The pre-compression wheel lifting adjustment device of a tablet press according to claim 3, characterized in that: the worm wheel and screw rod lifter comprises a shell (4), a worm wheel (41), a worm (42) and a screw rod (43), wherein the worm wheel (41), the worm (42) and the screw rod (43) are arranged in the shell (4), the screw rod (43) and the worm wheel (41) are coaxially arranged, the screw rod (43) is integrally formed on the upper surface of the worm wheel (41), and the axes of the screw rod (43) and the worm wheel (41) are vertical axes; the upper surface of the shell (4) is further fixedly provided with a pre-pressing wheel carrier (5), the pre-pressing wheel carrier (5) is of a cylindrical structure with a vertically through mounting hole, the upper surface of the shell (4) is provided with a through hole which is vertically opposite to the mounting hole of the pre-pressing wheel carrier (5), the lifting part (1) is vertically movably arranged in the mounting hole in a guiding manner, the bottom surface of the lifting part (1) is provided with a threaded hole (13) extending along the vertical direction, and the threaded hole (13) is in threaded fit with the screw rod (43); the pre-pressing wheel carrier (5) is also provided with a rotation limiting structure for limiting the rotation of the lifting part (1).

5. The pre-compression wheel lifting adjustment device of a tablet press according to claim 4, characterized in that: the two ends of the pre-pressing wheel mounting shaft (2) extend out of the shaft mounting hole (12), a U-shaped containing groove (51) corresponding to the U-shaped mounting groove (11) is further arranged on the barrel wall of the pre-pressing wheel frame (5), the barrel wall is divided into two opposite parts by the U-shaped containing groove (51), two opposite limiting holes (52) are formed in the two parts, the two ends of the pre-pressing wheel mounting shaft (2) extend into the limiting holes (52), the limiting holes (52) are used for limiting the pre-pressing wheel mounting shaft (2) in a circumferential rotating mode, the pre-pressing wheel mounting shaft (2) can move up and down in the limiting holes (52), and the limiting holes (52) form the rotating limiting structure.

6. The pre-compression wheel lifting adjustment device of a tablet press according to claim 5, characterized in that: the worm gear screw rod lifter is characterized by further comprising a motor (6), and an output shaft of the motor (6) is in transmission connection with a worm (42) of the worm gear screw rod lifter.

7. The pre-compression wheel lifting adjustment device of a tablet press according to claim 6, characterized in that: a speed reducer (7) is further arranged between the motor (6) and the worm wheel screw rod lifter, an output shaft of the motor (6) is in transmission connection with an input end of the speed reducer (7), and an output end of the speed reducer (7) is in transmission connection with the worm (42).

8. The pre-compression wheel lifting adjustment device of a tablet press according to claim 7, characterized in that: and a proximity switch (9) is also fixedly arranged on the speed reducer (7).