CN218906404U - Tablet press feeder fast-assembling impeller mechanism and feeder - Google Patents

Abstract

The application discloses tablet press charging means fast-assembling impeller mechanism and charging means has solved tablet press charging means fast-assembling impeller axle and has got into the problem of dust. The tablet press feeder is provided with a fast-assembling impeller mechanism, and a cover plate is provided with a first through hole. The fixing base is arranged on the cover plate, and a cylindrical through cavity is formed in the fixing base. An opening at one end of the through cavity is butted with the first through hole. One end of the impeller shaft is coaxially and fixedly connected with the impeller, the other end of the impeller shaft sequentially penetrates through the first through hole and the through cavity, and the shaft end is provided with a lock nut. The shaft sleeve is sleeved on the impeller shaft, the shaft sleeve and the impeller shaft coaxially rotate, and the outer wall of the shaft sleeve is in circumferential sliding connection with the through cavity. The cover plate, the shaft sleeve and the fixing seat are limited between the impeller and the lock nut. The gap between the through cavity and the shaft sleeve is sealed by a sealing ring. On the premise of keeping the impeller capable of being quickly disassembled and assembled, the material powder is effectively prevented from entering the gap between the impeller shaft and the fixing seat, and abrasion is caused to the impeller shaft. The impeller is assembled and disassembled by hands without tools, and the assembly and disassembly are rapid and convenient.

Description

Tablet press feeder fast-assembling impeller mechanism and feeder

Technical Field

The application relates to the technical field of pharmaceutical machinery tablet presses, in particular to a tablet press feeder fast-assembling impeller mechanism and a feeder.

Background

At present, the medicine tablet has become one of the medicine types with multiple varieties, large yield, wide application, convenient use and storage and stable quality, and the tablet accounts for more than 1/3 of the total amount of the preparation carried by pharmacopoeia in China and other countries, thus the application of the medicine tablet is wide. The high-speed tablet press is the most important equipment in producing tablets in pharmaceutical enterprises, can press various granular raw materials to form, is mainly used for producing tablets such as round and special-shaped tablets, sugar tablets, calcium tablets and the like in a large scale, and is widely applied to the industries such as pharmacy, chemical industry, food, electronics and the like.

The working flow of the tablet pressing machine comprises the working procedures of feeding, quantifying, pre-pressing, main pressing and tablet discharging, and the tablet finished product is obtained after the working flow of tablet pressing is completed. The tablet press charging procedure is to fill the material into each middle mold cavity, the material is added into the charging basket before tablet pressing, then the material flows into the feeder charging cavity under the action of self gravity, and the material is forced to be pushed into the middle mold cavity through the rotation of the feeder impeller, so that the material filling procedure is completed.

GMP (pharmaceutical manufacturing quality control Specification) has strict regulations on the cleaning requirements of pharmaceutical enterprises on tablet production equipment, and each pharmaceutical enterprise formulates a set of equipment standard cleaning operation specifications which meet the actual production of the enterprise according to the cleaning requirements of GMP. Every time tablets are subjected to batch replacement and daily cleaning maintenance of the tablet press, particularly when the tablet is subjected to variety replacement, the tablet press and related parts in contact with materials are required to be thoroughly cleaned, so that cross contamination of the materials is prevented, and the quality of the tablets is influenced. Wherein, the feeder is the highest part of dismouting frequency in the clean maintenance process of tablet press. Therefore, tablet production enterprises have increasingly urgent requirements on quick assembly disassembly structure and tool-free operation of a feeder of a tablet press and convenience in cleaning (no dead angle cleaning).

The existing feeder generally comprises a chassis, a cover plate, an impeller shaft, a fixed seat, a bearing spacer, a bearing, a sealing ring, a shaft retainer ring and a fastener. One end of the impeller shaft is connected with a driving shaft of a feeding mechanism of the tablet press, and the other end of the impeller shaft is provided with an impeller through a key (transmitting torque) and a gasket (axially fixed on the impeller), so that the feeding driving torque of the tablet press is transmitted to the impeller, and the impeller is driven to rotate to complete a material filling procedure. However, in the rotating process of the impeller, the fastener which is easy to cause is loosened and falls off, the bottom of the chassis is worn, and worn powder can enter materials to cause pollution of tablets, and the impeller is detached and assembled by a tool, so that the disassembly and assembly are inconvenient. The impeller, the gasket and the fastener are in clearance fit, and dust enters gaps in the feeding process, so that the cleaning is not easy. The positioning and matching distance between the impeller and the impeller shaft is short, the matching tolerance is not easy to control, the dismounting and the mounting of the too tight impeller are inconvenient, and the too loose impeller is matched to swing in the rotating process, so that the filling is unstable and the tablet weight difference limit value of tablets is affected.

Disclosure of Invention

The embodiment of the application provides a tablet press feeder fast-assembling impeller mechanism is charging means promptly, has solved the problem that tablet press charging means fast-assembling impeller axle got into the dust.

The embodiment of the application provides a tablet press feeder fast-assembling impeller mechanism, contains apron, fixing base, axle sleeve, lock female, impeller shaft and impeller. The cover plate is provided with a first through hole. The fixing seat is arranged on the cover plate, and a cylindrical through cavity is formed in the fixing seat. And an opening at one end of the through cavity is in butt joint with the first through hole. One end of the impeller shaft is coaxially and fixedly connected with the impeller, the other end of the impeller shaft sequentially penetrates through the first through hole and the through cavity, and the shaft end is provided with a lock nut. The shaft sleeve is sleeved on the impeller shaft, the shaft sleeve and the impeller shaft coaxially rotate, and the outer wall of the shaft sleeve is in circumferential sliding connection with the through cavity. The cover plate, the shaft sleeve and the fixing seat are limited between the impeller and the lock nut. The gap between the through cavity and the shaft sleeve is sealed by a sealing ring.

Preferably, the sleeve has a ring of radially extending first limit keys thereon. A circle of limiting groove is arranged on the inner wall of the through cavity perpendicular to the axial direction. The limit groove is in sliding fit with the first limit key.

Further preferably, the limiting groove is a gap between two groups of ball bearings arranged side by side, the outer ring of the ball bearings is arranged on the inner wall of the fixing seat, and the inner ring is provided with the shaft sleeve.

Preferably, the end face of the shaft sleeve, which is close to one end of the impeller, is provided with a limiting hole. The impeller is provided with a second limit key matched with the limit hole. When the locking nut locks the impeller shaft, the limit key is inserted into the limit hole.

Further, the impeller shaft comprises a first shaft body, a positioning block and a second shaft body which are integrally formed. The impeller is axially and sequentially connected with the first shaft body, the positioning block and the second shaft body. The radial section of the positioning block is square, and the radial radius is smaller than that of the first shaft body and the second shaft body. And positioning holes are formed in four radial surfaces of the positioning block. The lock nut is of a round cake structure with the height equal to the axial length of the positioning block. The bottom surface of the lock nut is provided with a square through hole and a round through hole. One side of the square through hole and the round through hole are open. The side length of the square through hole is slightly larger than that of the positioning block and smaller than that of the first shaft body and the second shaft body. The radius of the circular through hole can accommodate the second shaft body to pass through. And a through hole perpendicular to the inner wall of the square through hole is formed from the outer wall of the lock nut to the inner wall of the square through hole. Also comprises a spring jack post. The spring jack posts are arranged in the through holes, and the spring jack posts extend into the inner walls of the square through holes to be matched with the positioning holes on the positioning blocks.

Preferably, the impeller is integrally formed with the impeller shaft.

The application also provides a tablet press feeder comprising a chassis, a feed inlet and a drive system. The tablet press feeder quick-assembly impeller mechanism of any one of the embodiments is also included. The chassis and the cover plate enclose a cavity. The feed inlet is arranged on a second through hole arranged on the cover plate. The driving system is connected with the impeller shaft and is used for driving the connecting shaft impeller to rotate.

The above-mentioned at least one technical scheme that this application embodiment adopted can reach following beneficial effect:

on the premise of keeping the impeller capable of being quickly disassembled and assembled, the material powder is effectively prevented from entering the gap between the impeller shaft and the fixing seat, and abrasion is caused to the impeller shaft. The impeller is assembled and disassembled by hands without tools, and the assembly and disassembly are rapid and convenient.

The impeller and the impeller shaft are integrally structured, so that potential risks of tablet pollution caused by chassis abrasion due to loosening of a key at the lower part for fixing when the impeller shaft drives the impeller to rotate are avoided. And no dead angle is cleaned, so that the cleaning and maintenance are convenient. The positioning matching distance between the impeller and the shaft sleeve in the cover plate assembly is long, positioning is accurate and reliable, feeding stability of the impeller is ensured, and the high-precision filling requirement of the tablet press is met.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a block diagram of an embodiment of a prior art tablet press feeder;

FIG. 2 is a block diagram of an embodiment of a tablet press feeder quick-fit impeller mechanism, i.e., a feeder, of the present application;

FIG. 3 is a block diagram of an embodiment of an impeller and impeller shaft of the present application;

FIG. 4 is a block diagram of a lock nut embodiment of the present application;

fig. 5 is a block diagram of an embodiment of a tablet press feeder of the present application.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions provided by the embodiments of the present application with reference to the accompanying drawings.

The utility model provides a tablet press charging means fast-assembling impeller mechanism has increased the axle sleeve structure. The prior art has no shaft sleeve structure

Figure 1 is a block diagram of an embodiment of a prior art tablet press feeder.

The existing feeder generally comprises a chassis 1, a cover plate 2, an impeller 3, an impeller shaft 4, a fixed seat 5, a bearing spacer 6, a bearing 7, a sealing ring 8, a shaft retainer 9 and a fastener 10. Because the impeller shaft directly passes through the fixed seat, a corresponding bearing is required to be arranged on the inner wall of the fixed seat, and the impeller shaft is also required to be matched with the bearing by a shaft retainer ring so as to ensure the rotation of the impeller shaft, so that a gap exists between the fixed seat and the impeller shaft, and the impeller shaft is required to be sealed by a sealing ring. Whether the limit fit or the seal has an effect on quick disassembly.

Fig. 2 is a block diagram of an embodiment of a tablet press feeder quick-fit impeller mechanism, i.e., a feeder, of the present application.

A tablet press feeder fast-assembling impeller mechanism comprises a cover plate 2, a fixed seat 5, a shaft sleeve 11, a lock nut 12, an impeller shaft 4 and an impeller 3.

The cover plate is provided with a first through hole. The fixing seat is arranged on the cover plate, and a cylindrical through cavity is formed in the fixing seat. The fixing seat is installed and fixed on the cover plate and used for installing related parts in the cover plate assembly.

For example, the flange seat 13 is further included, the flange seat and the fixing seat are fixedly installed on the cover plate through the fastening piece 10, the flange seat is of a cylindrical structure, the outer wall of the flange seat is attached to the inner wall of the through cavity of the fixing seat, one end of the flange seat is provided with an extending portion extending outwards along the radial direction, the radius of the extending portion is larger than that of the first through hole, when the other end of the flange seat passes through the first through hole and is attached to the inner wall of the through cavity of the fixing seat, the extending portion is attached to the cover plate, the extending portion is provided with a mounting hole, the end face, close to one end of the cover plate, of the cover plate and the fixing seat is provided with a corresponding mounting hole, and the flange seat, the cover plate and the fixing seat are fixedly connected together through the fastening piece.

The fastening piece can be a bolt, a connecting key or other structures with the same function, and is not limited further.

For another example, the height of the flange is lower than that of the fixing seat, so that the outer wall of the flange does not cover the inner wall of the through cavity of the fixing seat. The through cavity of the fixing seat is tightened inwards in the radial direction away from the opening at one end of the impeller, and the tightened opening radius is close to the radial radius of the shaft sleeve, so that the outer wall of the shaft sleeve is attached to the tightened opening inner wall.

And an opening at one end of the through cavity is in butt joint with the first through hole. The through cavity is opened on the first through hole. One end of the impeller shaft is coaxially and fixedly connected with the impeller, the other end of the impeller shaft sequentially penetrates through the first through hole and the through cavity, and the shaft end is provided with a lock nut.

The shaft sleeve is sleeved on the impeller shaft, the shaft sleeve and the impeller shaft coaxially rotate, and the outer wall of the shaft sleeve is in circumferential sliding connection with the through cavity. The cover plate, the shaft sleeve and the fixing seat are limited between the impeller and the lock nut.

The radius of the through hole on the end surface of the flange seat far away from the impeller is approximately equal to the axial radius of the shaft sleeve, and the flange seat stretches into the through cavity for a certain distance and then is tightened inwards along the radial direction to cling to the outer wall of the shaft sleeve, so that one side of the through cavity of the fixing seat close to the impeller is sealed.

For example, the length of the sleeve is not greater than the length of the through cavity, preferably the length of the sleeve is approximately equal to the length of the through cavity.

The shaft sleeve is provided with a circle of first limit keys extending radially. A circle of limiting groove is arranged on the inner wall of the through cavity perpendicular to the axial direction. The limit groove is in sliding fit with the first limit key.

For example, the first limit key is a check ring 9 for a shaft, and the check ring for a shaft is a standard outsourcing piece and is fixedly arranged on the outer side of the shaft sleeve for axial positioning of the shaft sleeve.

The spacing groove is the space between two sets of bearings 7 that set up side by side, and the bearing outer lane is installed on the fixing base inner wall, and the inner circle is installed the axle sleeve. Preferably, the bearing is a ball bearing.

The ball bearings are standard outsourcing parts and are divided into two groups, the outer ring is arranged on the inner side of the fixed seat, the inner ring is provided with a shaft sleeve, and the shaft sleeve is used for radial positioning and rotary supporting of the shaft sleeve.

For example, two groups of ball bearings are arranged on the inner wall of the fixed seat side by side, and a gap between the ball bearings is a limiting groove which is enough to accommodate the first limiting key and axially positions the shaft sleeve through the first limiting key and the two groups of ball bearings.

For another example, the shaft sleeve is installed and fixed in the through cavity of the fixed seat through two groups of ball bearings, an adjusting pad 14, a shaft check ring 9 and a hole check ring 15, and the radial positioning of the impeller is completed.

The adjusting pad is arranged at the lower part of the ball bearing inner ring, and the axial movement of the shaft sleeve is controlled by adjusting the thickness dimension, so that the shaft sleeve has no axial movement gap.

The check ring for the hole is a standard outsourcing piece and is arranged on the inner side of the fixing seat and used for axial positioning of the two groups of ball bearings.

The axial movement of the two groups of ball bearings is controlled by adjusting the thickness dimension, so that the two groups of ball bearings have no axial movement gap in the fixed seat.

A gap is formed between the shaft sleeve and the through cavity of the fixing seat, and in order to prevent material powder of the tablet press from entering the gap, the shaft sleeve and the through cavity of the fixing seat should be sealed. Preferably, the gap between the through cavity and the shaft sleeve is sealed by a sealing ring.

For example, the sealing ring is a standard outsourcing piece and is divided into two pieces, and the sealing ring is respectively arranged on the flange seat and the opening for tightening the fixing seat and is used for sealing two ends of the shaft sleeve so as to prevent the damage or the increase of the rotation resistance of the shaft sleeve caused by the entering of dust in or outside the feeder into the ball bearing.

Since the sleeve rotates coaxially with the impeller shaft, the impeller also rotates coaxially with the impeller shaft. Therefore, the shaft sleeve is in limit connection with the impeller and/or the impeller shaft through the limit device, and the shaft sleeve is driven to rotate through the impeller and/or the impeller shaft.

For example, the end face of the shaft sleeve, which is close to one end of the impeller, is provided with a limiting hole. The impeller is provided with a second limit key matched with the limit hole. When the locking nut locks the impeller shaft, the limit key is inserted into the limit hole.

The utility model provides a tablet press charging means fast-assembling impeller mechanism has increased the axle sleeve structure, and the axle sleeve link up the spacing sliding connection of intracavity wall according to prior art's mode and fixing base to sealed axle sleeve and fixing base link up the gap in chamber, and axle sleeve and the coaxial rotation of impeller shaft, consequently get into a small amount of dust in the axle sleeve and can not lead to the fact the friction to the impeller shaft, only need with the manual dismantlement of lock female on upper portion, can pull out the impeller shaft from the axle sleeve, realize quick detach.

FIG. 3 is a block diagram of an embodiment of an impeller and impeller shaft of the present application.

The impeller shaft comprises a first shaft body 401, a positioning block 402 and a second shaft body 403 which are integrally formed. The impeller is axially and sequentially connected with the first shaft body, the positioning block and the second shaft body. The radial section of the positioning block is square, and the radial radius is smaller than that of the first shaft body and the second shaft body. The four surfaces of the positioning block in the radial direction are provided with positioning holes 404, and the relative positions of the positioning holes on the four surfaces are the same.

The joint of the impeller and the impeller shaft is provided with a step structure 301 coaxial with the impeller, and the step structure seals an opening on one side of the flange seat close to the impeller.

In the prior art, the impeller and the impeller shaft are connected through bolts, for example, a shaft hole is formed in the center of the impeller, a concave step structure which is coaxial with the shaft hole and has a radius larger than that of the shaft hole is formed in one side, away from the impeller shaft, of the impeller, after the impeller shaft passes through the shaft hole, the inner wall of the shaft hole and the impeller shaft which is opposite to the inner wall of the shaft hole move in a limiting circumferential direction through a third limiting key 18, and therefore the impeller shaft drives the impeller. The impeller shaft is screwed in from a threaded hole on the end face of the impeller shaft through a bolt structure with a gasket, and the axial movement of the impeller shaft in the shaft hole of the impeller is limited through the gasket. The recessed step structure is used for accommodating the gasket, so that the gasket is easy to loosen along with use, and the impeller moves. It is therefore preferred that the impeller is integrally formed with the impeller shaft.

For example, the impeller and the impeller shaft are integrally formed as a self-contained piece for forcibly pushing the material into the cavity of the mold by self-rotation to complete overfilling of the material. The impeller shaft is provided with a positioning block in the shape of a polygonal column, the positioning block is provided with a positioning hole, the lock nut is provided with a through hole in the shape of the positioning block, the locking feeding impeller can be installed and locked from any side direction of the polygon, and the positioning hole is positioned and locked through the jacking column. Preferably, the axial section of the positioning block is square.

Fig. 4 is a block diagram of a lock nut embodiment of the present application.

The lock nut is of a round cake structure with the height equal to the axial length of the positioning block. The bottom surface of the lock nut is provided with a square through hole 121 and a round through hole 122. One side of the square through hole and the round through hole are open. The side length of the square through hole is slightly larger than that of the positioning block and smaller than that of the first shaft body and the second shaft body. The radius of the circular through hole can accommodate the second shaft body to pass through. The through hole 123 perpendicular to the inner wall of the square through hole is formed from the outer wall of the lock nut to the inner wall of the square through hole. Spring posts 124 (not shown in fig. 2) are also included. The spring jack post is arranged in the through hole, extends into the inner wall of the square through hole and is matched with the positioning hole on the positioning block, and the position of the impeller shaft is locked.

For example, the lock nut is a self-made part, two symmetrical spring jacking columns are internally installed, the lock nut penetrates through the end of the feeding impeller shaft from the round hole part of the lock nut during installation, and then is horizontally pushed into the square positioning groove of the feeding impeller, and the spring jacking columns on two sides jack into the positioning hole of the feeding impeller to complete locking and positioning of the feeding impeller. Wherein, the top of the spring top column is a standard outsourcing piece.

Fig. 5 is a block diagram of an embodiment of a tablet press feeder of the present application.

In another aspect, the present application also provides a tablet press feeder comprising a chassis 1, a feed opening 16 and a drive system (not shown).

The tablet press feeder quick-assembly impeller mechanism of any one of the embodiments is also included.

The chassis and the cover plate enclose a cavity. The cover plate and the chassis enable the feeder to form a closed material storage cavity through the fastening piece.

The feed inlet is arranged on a second through hole arranged on the cover plate. The driving system is connected with the impeller shaft and is used for driving the connecting shaft impeller to rotate.

The clean dismouting flow of this tablet press charging means does: firstly, separating a quick-assembly impeller mechanism of a tablet press feeder from a driving system, disassembling the tablet press feeder from the tablet press, unscrewing four fasteners by hand to separate a cover plate assembly from a feeding impeller from a chassis, and loosening a locking nut by hand to separate the impeller from the cover plate, so that the disassembly work of the quick-assembly impeller feeder is completed, and the related cleaning work can be carried out. The installation of the quick-assembly impeller feeder can be completed according to the reverse steps of the disassembly process.

The tablet press adopting the tablet press feeder fast-assembling impeller mechanism is installed, the impeller is installed and fixed on the cover plate component by the lock nut without fixing a fastener, so that the potential risk of tablet pollution caused by chassis abrasion due to loosening of the fastener in rotation of the feeding impeller is effectively avoided; the impeller is quickly and conveniently assembled and disassembled by hand without tools; the charging impeller adopts an integral structure, so that dead angles are not cleaned, and the charging impeller is convenient to clean and maintain; the positioning matching distance between the feeding impeller and the shaft sleeve in the cover plate assembly is long, positioning is accurate and reliable, feeding stability of the feeding impeller is ensured, and the high-precision filling requirement of the tablet press is met.

It should be noted that the types of feeders of different series of tablet presses are different, there are single-impeller feeders and double-impeller feeders, and the sizes of the two types of feeders are also different; modifications, equivalent substitutions and improvements may be made in accordance with the above described schemes to enable the fast-assembling impeller feeder mechanism to be used with a wide variety of tablet presses.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims (7)

1. The quick-mounting impeller mechanism of the tablet press feeder is characterized by comprising a cover plate, a fixed seat, a shaft sleeve, a locking nut, an impeller shaft and an impeller;

the cover plate is provided with a first through hole;

the fixed seat is arranged on the cover plate, and a cylindrical through cavity is formed in the fixed seat;

an opening at one end of the through cavity is in butt joint with the first through hole;

one end of the impeller shaft is coaxially and fixedly connected with the impeller, the other end of the impeller shaft sequentially penetrates through the first through hole and the through cavity, and the shaft end is provided with a lock nut;

the shaft sleeve is sleeved on the impeller shaft, the shaft sleeve and the impeller shaft coaxially rotate, and the outer wall of the shaft sleeve is in circumferential sliding connection with the through cavity;

the cover plate, the shaft sleeve and the fixed seat are limited between the impeller and the lock nut;

the gap between the through cavity and the shaft sleeve is sealed by a sealing ring.

2. The tablet press feeder quick-assembly impeller mechanism of claim 1, wherein the sleeve has a ring of radially extending first limit keys thereon;

a circle of limiting groove is arranged on the inner wall of the through cavity perpendicular to the axial direction;

the limit groove is in sliding fit with the first limit key.

3. The tablet press feeder fast-assembling impeller mechanism of claim 2, wherein the limit groove is a gap between two groups of bearings arranged side by side, the outer ring of the bearing is arranged on the inner wall of the fixed seat, and the inner ring is provided with a shaft sleeve.

4. The tablet press feeder quick-assembly impeller mechanism of claim 1, wherein the end face of the shaft sleeve, which is close to one end of the impeller, is provided with a limiting hole;

the impeller is provided with a second limit key matched with the limit hole;

when the locking nut locks the impeller shaft, the limit key is inserted into the limit hole.

5. The tablet press feeder quick-fit impeller mechanism of claim 1, wherein the impeller shaft comprises an integrally formed first shaft body, a positioning block, and a second shaft body;

the impeller is axially and sequentially connected with the first shaft body, the positioning block and the second shaft body;

the radial section of the positioning block is square, and the radial radius is smaller than that of the first shaft body and the second shaft body;

positioning holes are formed in four radial surfaces of the positioning block;

the lock nut is of a round cake structure with the height equal to the axial length of the positioning block;

the bottom surface of the lock nut is provided with a square through hole and a round through hole;

one side of the square through hole is open with the round through hole;

the side length of the square through hole is slightly larger than that of the positioning block and smaller than that of the first shaft body and the second shaft body;

the radius of the circular through hole can accommodate the second shaft body to pass through;

a through hole perpendicular to the inner wall of the square through hole is formed from the outer wall of the lock nut to the inner wall of the square through hole;

the spring jack post is also included;

the spring jack posts are arranged in the through holes, and the spring jack posts extend into the inner walls of the square through holes to be matched with the positioning holes on the positioning blocks.

6. The tablet press feeder quick-fit impeller mechanism of claim 1, wherein the impeller is integrally formed with the impeller shaft.

7. A tablet press feeder comprises a chassis, a feed inlet and a driving system;

the tablet press feeder quick-assembly impeller mechanism is characterized by further comprising the tablet press feeder quick-assembly impeller mechanism according to any one of claims 1-6;

the chassis and the cover plate enclose a cavity;

the feed inlet is arranged on a second through hole arranged on the cover plate;

the driving system is connected with the impeller shaft and is used for driving the connecting shaft impeller to rotate.

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