CN210257384U - Rotary tablet press - Google Patents

Abstract

The utility model discloses a rotary tablet press, which solves the technical problems that the hardened and discharged material of powdery raw material is uneven, the quality of the formed tablet is affected by powdery medicament wrapped on the formed tablet, and the like, and comprises a shell internally provided with an upper pressure wheel part and a lower pressure wheel part, wherein the upper pressure wheel part is provided with a downward upper punch, the lower pressure wheel part is provided with an upward lower punch, a doctor blade is arranged between the upper punch and the lower punch, a collecting groove is arranged below the doctor blade, the top of the upper cavity is provided with a feeding bin with an anti-blocking component, the anti-blocking component comprises an eccentric wheel and an extruding part arranged at the edge of the eccentric wheel, a motor is arranged outside the shell, an output shaft of the motor passes through the shell and a cylinder part fixedly connected with the eccentric wheel, the extruding part comprises the collecting groove and a supporting rod fixedly arranged at the top of the sliding block, a limiting clamp is arranged in the cylinder part, the supporting rod passes through the limiting clamp and is fixedly, the problem that the quality of the chips is affected due to uneven discharging can be effectively solved.

Description

Rotary tablet press

Technical Field

The utility model relates to a pharmaceutical production machinery technical field, concretely relates to rotary tablet press.

Background

The tablet press is mainly used for the research of the tablet process in the pharmaceutical industry, the tablet press presses granular materials into round, special-shaped, characters and symbols with the diameter not more than 13mm, and automatic continuous production equipment of graphic tablets can be divided into a single-punch tablet press, a basket tablet press, a rotary tablet press, a subhigh-speed rotary tablet press, a full-automatic high-speed tablet press and a rotary core-spun tablet press, the rotary tablet press circularly moves up and down according to a certain track by a plurality of pairs of punching dies uniformly distributed on a rotary table, the granular materials are pressed into the tablets by the pressing wheels, various tablets have different dosage requirements, large dosage adjustment is realized by selecting the punching dies with different punching head diameters, after the size of the punching dies is selected, small dosage adjustment is realized by adjusting the depth of the lower punch extending into the middle die hole, so as to change the actual length of the middle die hole, the filling volume of the medicine in the die hole is adjusted, when the traditional rotary tablet press is used for feeding, the material naturally falls, when the tablet raw material is powder, the feed inlet is easy to block due to hardening, so that the discharging is not uniform, and meanwhile, the powdery tablet raw material is easy to stick on the tablet obtained by pressing, so that the powdery tablet raw material is wrapped on the tablet, the quality of the processed and formed tablet is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the uneven ejection of compact that hardens for solving likepowder raw materials wraps up on with the shaping tablet and has powdered medicament influence technical problem such as shaping back tablet quality, the utility model provides a rotary tablet press.

The utility model discloses a realize above-mentioned purpose and specifically adopt following technical scheme:

the utility model provides a rotary tablet press, includes the casing, the casing is separated into cavity and lower cavity by the baffle, go up pinch roller portion and lower pinch roller portion in being equipped with in the cavity, go up pinch roller portion and be equipped with last drift down, lower pinch roller portion corresponds drift department and is equipped with lower drift up, is equipped with the doctor-bar of scraping the shaping tablet between last drift and lower drift, the doctor-bar has the collecting vat of collecting the tablet of scraping down, it still is equipped with the feed bin to go up the cavity top, with the feed bin including the funnel portion, barrel portion and the sharp mouth portion that the rigid coupling is as an organic whole and communicate each other, be equipped with in the barrel portion and prevent stifled subassembly, prevent stifled subassembly including eccentric wheel and the extrusion portion of setting at the eccentric wheel edge, the casing is equipped with the motor outward, the output shaft of motor passes casing and barrel portion and eccentric wheel rigid coupling, extrusion portion includes the sliding, the barrel body is internally provided with a limiting clamp, the supporting rod penetrates through the limiting clamp and is fixedly connected with a stirring plate, and the edge of the eccentric wheel is in contact with the sliding block and drives the sliding block to vibrate up and down.

Furthermore, a baffling sheet is fixedly arranged at the joint of the funnel part and the barrel part, the bottom surface of the stirring plate is horizontal, and the contact part of the top part and the medicinal powder is of an arc-shaped structure.

Further, be equipped with the bearer bar in the barrel, eccentric wheel, sliding block and spacing card all set up in the bearer bar, spacing card and bearer bar and stirring board rigid coupling are worn out to the bracing piece.

Further, the collecting vat is inclosed cuboid structure, be equipped with the filter through the spout on the collecting vat inner wall, the filter separates the collecting vat for the powder collection portion that is located the lower extreme and the tablet collection portion that is located the upper end, the filtration pore diameter of crossing of filter equals the diameter of the medicine tablet of making.

Furthermore, a plurality of blocking pieces are arranged inside the tablet collecting part, and the blocking pieces are perpendicular to the filtering plate and form an included angle of 60-75 degrees with the falling direction of the tablets.

Further, the bottom of the filter plate is provided with a vibration motor.

Furthermore, the top of the collecting groove is provided with three through holes, and air blowers are arranged in the through holes.

The utility model discloses the during operation: firstly, adding the medicinal powder to be pressed into tablets into a feeding bin, connecting a motor with a municipal power supply, driving an eccentric wheel to rotate by an output shaft of the motor, driving a sliding block movably arranged at the edge of the eccentric wheel to move by the rotating eccentric wheel, driving a connecting rod and a stirring plate arranged at the top of the connecting rod to move by the sliding block, enabling the connecting rod to only drive the stirring plate fixedly connected at the top end of the connecting rod to move up and down along the vertical direction due to the fact that the sliding block drives the connecting rod and the stirring plate arranged at the top of the connecting rod to move, so that the medicinal powder with small particle size can be limited and prevented from caking, the discharge port is blocked, the discharge unevenness is caused, the quality of the formed tablets is influenced, meanwhile, the tablets formed by extrusion molding of an upper punch and a lower punch are scraped to a collecting tank by a scraping blade, a blower and a vibration motor, the air-blower that sets up at the collecting vat top simultaneously constantly blows in the powder collection portion by filter divided, and vibrating motor constantly vibrates, increases the friction of the piece that has the fracture and other pieces, sieves out through the filter plate with the not good, the piece that splits of shaping quality simultaneously.

The utility model has the advantages as follows:

1. the utility model firstly adds the medicine powder to be pressed into tablets into a feeding bin, the motor is communicated with the municipal power supply, the motor output shaft drives the eccentric wheel to rotate, the rotating eccentric wheel drives the movable sliding block arranged at the edge of the eccentric wheel to move, the sliding block drives the connecting rod and the stirring plate arranged at the top of the connecting rod to move, the sliding block is blocked by the limiting card, so that the connecting rod can only drive the stirring plate fixedly connected at the top end of the connecting rod to move up and down along the vertical direction, thereby the medicine powder with small granularity can be limited to be prevented from caking, the discharge hole is blocked to cause uneven discharge, the quality of the formed tablets is influenced, the tablets extruded by the upper punch and the lower punch are scraped to the collecting tank by the scraping blade, the air blower and the vibration motor are communicated with the municipal power supply, a plurality of separation blades are obliquely arranged in, increase the friction between piece and the piece, set up the air-blower at collecting vat top simultaneously and constantly blow in the powder on the shaping piece by filter divided powder collection portion, vibrating motor constantly vibrates, increases the friction of the piece that has the fracture and other pieces, sieves out through the filter plate with the not good, the piece that splits of shaping quality simultaneously.

2. Funnel portion and barrel portion's junction has set firmly the baffling piece, mix the board bottom and personally submit the level form, top and powder contact department become circular-arc structure, establish to circular-arc structure through the top that will stir the board, reciprocate the in-process when stirring the board, reduce powder and the friction of stirring the board top, make powdered powder easily drop from stirring the board top.

3. Be equipped with the bearer bar in the barrel, eccentric wheel, sliding block and spacing card all set up in the bearer bar, spacing card and bearer bar and stirring board rigid coupling are worn out to the bracing piece, will prevent blocking up the drive division protection of subassembly through setting up the bearer bar, can effectively avoid powdered powder to get into the drive division who prevents blocking up the subassembly, and the work of subassembly is prevented blockking up in the influence.

4. The collecting vat is inclosed cuboid structure, be equipped with the filter through the spout on the collecting vat inner wall, the filter separates the collecting vat for the powder collection portion that is located the lower extreme and the tablet collection portion that is located the upper end, the filtration pore diameter of filter equals the diameter of the medicine tablet of making, through set up the filter in the collecting vat, can effectually sift out the not good, cracked piece of shaping quality, also can filter out the part powder of pressing under the arms on the shaping piece with wrapping up in the while.

5. The inside a plurality of separation blades that are equipped with of tablet collection portion, the separation blade is perpendicular and becomes 60-75 contained angles with the tablet direction of dropping with the filter, through set up a plurality of baffles in tablet collection portion slope, can effectual increase tablet increase the friction of shaping piece and other pieces in the motion route of tablet collection portion, improve the powder on with the shaping piece and break the possibility that the tablet filtered out.

6. The filter bottom is equipped with vibrating motor, the collecting vat top is equipped with three through-hole, be equipped with the air-blower in the through-hole, can effectively guarantee the shaping piece from the collecting vat internal flow through adding in the filter bottom and establishing vibrating motor, can filter out not good, the cracked piece of shaping quality simultaneously, add at the collecting vat top and establish the air-blower and can insufflate the powder collection portion that is located the filter below with wrapping up in the powder on the piece surface under the clamp, improve the quality of shaping piece.

Drawings

Fig. 1 is a schematic structural view of a rotary tablet press of the present invention;

FIG. 2 is a schematic structural view of the present invention with a protection frame;

FIG. 3 is a schematic view of the structure of the feed inlet of the present invention;

FIG. 4 is a cross-sectional view of the collection trough of the present invention;

FIG. 5 is a schematic view of the structure of the collecting tank of the present invention;

reference numerals: 1-shell, 2-upper press wheel part, 3-lower press wheel part, 4-upper punch, 5-lower punch, 6-funnel part, 7-barrel part, 8-tip part, 10-stirring plate, 11-supporting rod, 12-limiting card, 13-sliding block, 14-eccentric wheel, 15-motor, 16-tablet collecting part, 17-filtering plate, 18-powder collecting part, 19-blower, 20-vibrating motor, 21-baffling sheet, 22-protective frame and 23-baffle.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "up", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that the products of the present invention are conventionally placed when used, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Example 1

As shown in fig. 1-5, a rotary tablet press comprises a housing, the housing is partitioned by a partition plate into an upper chamber and a lower chamber, an upper press wheel part and a lower press wheel part are arranged in the upper chamber, the upper press wheel part is provided with a downward upper punch, the lower press wheel part is provided with a downward lower punch corresponding to the upper punch, a scraper for scraping off formed tablets is arranged between the upper punch and the lower punch, a collecting tank for collecting the scraped tablets is arranged under the scraper, the top of the upper chamber is further provided with a feeding bin, the feeding bin comprises a funnel part, a barrel part and a sharp mouth part which are fixedly connected into a whole and are communicated with each other, an anti-blocking component is arranged in the barrel part, the anti-blocking component comprises an eccentric wheel and an extrusion part arranged at the edge of the eccentric wheel, a motor is arranged outside the housing, an output shaft of the motor penetrates through the housing and the barrel part to be fixedly connected with the eccentric wheel, the barrel body is internally provided with a limiting clamp, the supporting rod penetrates through the limiting clamp and is fixedly connected with a stirring plate, and the edge of the eccentric wheel is in contact with the sliding block and drives the sliding block to vibrate up and down.

In the embodiment, firstly, the medicine powder to be pressed into tablets is added into a feeding bin, a motor is communicated with a municipal power supply, an output shaft of the motor drives an eccentric wheel to rotate, the rotating eccentric wheel drives a sliding block movably arranged at the edge of the eccentric wheel to move, the sliding block drives a connecting rod and a stirring plate arranged at the top of the connecting rod to move, the sliding block is clamped by a limiting clamp, so that the connecting rod can only drive the stirring plate fixedly connected at the top end of the connecting rod to move up and down along the vertical direction, the medicine powder with small granularity can be limited to be prevented from caking, the discharge hole is blocked to cause uneven discharge, the quality of the formed tablets is influenced, meanwhile, the tablets formed by extrusion by an upper punch and a lower punch are scraped to a collecting tank by a scraping blade, an air blower and a vibration motor are communicated with the municipal power supply, and, increase the friction between piece and the piece, set up the air-blower at collecting vat top simultaneously and constantly blow in the powder on the shaping piece by filter divided powder collection portion, vibrating motor constantly vibrates, increases the friction of the piece that has the fracture and other pieces, sieves out through the filter plate with the not good, the piece that splits of shaping quality simultaneously.

Example 2

As shown in fig. 1, this embodiment is further improved on the basis of embodiment 1, a baffling sheet is fixedly disposed at the connection position of the funnel part and the cylinder part, the bottom surface of the stirring plate is horizontal, and the contact position of the top part and the medicine powder is in an arc-shaped structure.

In the embodiment, the baffling piece is fixedly arranged at the joint of the funnel part and the barrel part, the bottom surface of the stirring plate is horizontal, the contact part of the top part and the medicinal powder is of an arc-shaped structure, the top part of the stirring plate is of the arc-shaped structure, and when the stirring plate moves up and down, the friction between the medicinal powder and the top part of the stirring plate is reduced, so that the powdered medicinal powder can easily fall off from the top part of the stirring plate.

Example 3

As shown in fig. 1-2, this embodiment is further improved on the basis of embodiment 1, a protection frame is arranged in the cylinder, the eccentric wheel, the sliding block and the limit clamp are all arranged in the protection frame, and the support rod penetrates through the limit clamp, the protection frame and the stirring plate for fixed connection.

This embodiment, be equipped with the bearer bar in the barrel, eccentric wheel, sliding block and spacing card all set up in the bearer bar, spacing card and bearer bar and stirring board rigid coupling are worn out to the bracing piece, and the drive division that will prevent the jam subassembly through setting up the bearer bar protects, can effectively avoid powdered powder to get into the drive division who prevents the jam subassembly, and the work of subassembly is prevented in the influence.

Example 4

As shown in fig. 1 and 3, in this embodiment, a further improvement is made on the basis of embodiment 1, the collecting tank is a closed cuboid structure, a filter plate is arranged on the inner wall of the collecting tank through a chute, the filter plate separates the collecting tank into a medicine powder collecting part at the lower end and a tablet collecting part at the upper end, and the aperture of a filter hole of the filter plate is equal to the diameter of a prepared medicine tablet.

This embodiment, the collecting vat is inclosed cuboid structure, be equipped with the filter through the spout on the collecting vat inner wall, the filter separates the collecting vat for the powder collection portion that is located the lower extreme and the tablet collection portion that is located the upper end, the filtration pore aperture of filtering equals the diameter of the medicine tablet of making, through set up the filter in the collecting vat, can effectually sieve out the not good, cracked piece of shaping quality, also can filter out the part powder of pressing from both sides on the shaping piece with wrapping up in the while.

Example 5

As shown in fig. 1 and 3, the present embodiment is further improved on the basis of embodiment 4, wherein a plurality of blocking pieces are arranged inside the tablet collecting part, and the blocking pieces are perpendicular to the filtering plate and form an included angle of 60 degrees to 75 degrees with the dropping direction of the tablets.

In the embodiment, the tablet collecting part is internally provided with the plurality of baffle plates, the baffle plates are perpendicular to the filter plates and form an included angle of 60-75 degrees with the falling direction of the tablets, the plurality of baffle plates are obliquely arranged in the tablet collecting part, the moving path of the tablets in the tablet collecting part can be effectively increased, the friction between the formed tablets and other tablets is increased, and the possibility of feeding powder to the formed tablets and breaking and filtering out the tablets is improved.

Example 6

As shown in fig. 1 and 4, the present embodiment is further improved on the basis of embodiment 4, wherein a vibration motor is disposed at the bottom of the filter plate, three through holes are disposed at the top of the collecting tank, and a blower is disposed in the through holes.

This embodiment, the filter bottom is equipped with vibrating motor, the collecting vat top is equipped with three through-hole, be equipped with the air-blower in the through-hole, can effectively guarantee the shaping piece and flow from the collecting vat through adding in the filter bottom and establishing vibrating motor, can filter out the not good, ruptured piece of shaping quality simultaneously, add at the collecting vat top and establish the air-blower and can blow in the powder collection portion that is located the filter below with the powder of pressing from both sides on the piece surface, improve the quality of shaping piece.

Claims (7)

1. The utility model provides a rotary tablet press, includes casing (1), casing (1) is separated into cavity and cavity down by the baffle, be equipped with press wheel portion (2) and lower press wheel portion (3) in the cavity, go up press wheel portion (2) and be equipped with down last drift (4), lower press wheel portion (3) correspond drift (4) department and are equipped with down punch (5) up, are equipped with the doctor-bar of scraping the shaping tablet between last drift (4) and lower punch (5), the doctor-bar has the collection groove of collecting the tablet of scraping down, it still is equipped with feed bin to go up the cavity top, a serial communication port, it includes funnel portion (6), barrel portion (7) and sharp mouth portion (8) that the rigid coupling is as an organic whole and communicate each other to add feed bin, be equipped with in barrel portion (7) and prevent stifled subassembly, prevent stifled subassembly includes eccentric wheel (14) and sets up the extrusion part at eccentric wheel (14) edge, the utility model discloses a vibration-damping device, including casing (1), casing (1) is equipped with motor (15) outward, the output shaft of motor (15) passes casing (1) and barrel portion (7) and eccentric wheel (14) rigid coupling, the extrusion portion includes sliding block (13) and sets firmly bracing piece (11) at sliding block (13) top, be equipped with spacing card (12) in barrel portion (7), bracing piece (11) pass spacing card (12) rigid coupling and have the stirring board, eccentric wheel (14) edge and sliding block (13) contact and drive sliding block (13) vibration from top to bottom.

2. A rotary tablet press according to claim 1, wherein the funnel part (6) and the barrel part (7) are connected by a baffle (21), the bottom of the stirring plate is horizontal, and the top of the stirring plate is in arc shape.

3. A rotary tablet press according to claim 1, wherein a protective frame (22) is provided in the barrel, the eccentric wheel (14), the sliding block (13) and the limit stop (12) are provided in the protective frame (22), and the support rod (11) passes through the limit stop (12) and the protective frame (22) and is fixedly connected to the stirring plate.

4. A rotary tablet press according to claim 1, wherein the collecting tank is of closed rectangular parallelepiped configuration, and wherein the collecting tank is provided on its inner wall with a filter plate (17) via a chute, said filter plate (17) dividing the collecting tank into a lower powder collecting portion (18) and an upper tablet collecting portion (16), said filter plate (17) having filter holes with a diameter equal to the diameter of the pharmaceutical tablets to be produced.

5. A rotary tablet press according to claim 4, wherein the tablet collecting portion (16) is internally provided with a number of angled baffles (23), said baffles (23) being perpendicular to the filter plates (17) and forming an angle of 60 ° to 75 ° with the tablet dropping direction.

6. A rotary tablet press according to claim 4, wherein the filter plates (17) are provided with a vibration motor (20) at the bottom.

7. A rotary tablet press according to claim 4, wherein the top of the collecting groove is provided with three through holes, in which through holes a blower (19) is arranged.

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