CN211307516U - Rotary tablet press - Google Patents

Abstract

The utility model discloses a rotary tablet press, including frame, loading hopper, powder feeder, upper fixed plate, well fixed plate, bottom plate, go up die, well mould, lower die, go up pinch roller and lower pinch roller, corresponding position department all is equipped with two rows of mounting holes on upper fixed plate, well fixed plate and the bottom plate, and each row of mounting hole all is annular array form, be equipped with in the mounting hole on the upper fixed plate the last die, be equipped with in the mounting hole on the well fixed plate the well mould, be equipped with in the mounting hole on the bottom plate the lower die, the position all is equipped with the upper pinch roller above each row of mounting hole on the upper fixed plate, and this upper pinch roller is located the rotation route of last die, the position all is equipped with the upper pinch roller below each row of mounting hole on the bottom plate, and this lower pinch roller is located the rotation route of lower die; the utility model discloses can avoid the great degree to increase the appearance profile of tablet press, production efficiency that can effectual improvement product.

Description

Rotary tablet press

Technical Field

The utility model relates to a pharmaceutical equipment, concretely relates to rotary tablet press.

Background

The tablet press is mainly used for the research of tablet process in pharmaceutical industry, and is a machine for pressing dry granular or powdery materials into tablets through a die, and the pressed finished products are round, special-shaped and provided with characters and symbols with the diameter not more than 13mm, and are automatic continuous production equipment.

The tablet press mainly comprises: the tablet press comprises a single-punch tablet press, a rotary tablet press and a high-speed rotary tablet press, wherein the rotary tablet press is the most common tablet press in pharmaceutical enterprises, the tablet press mainly comprises a working turntable, a punch die, a feeding mechanism, a pressure regulating mechanism, a filling regulating mechanism and the like, and some tablet presses are also provided with powder absorbers; the working process of the tablet press can be divided into the following steps:

s1, the punch part (with the working position upward) under the punch extends into the middle die hole from the lower end of the middle die hole to seal the bottom of the middle die hole;

s2 filling medicine into the middle mould hole by using a feeder;

s3, the punch part (with the working position downward) falls into the middle die hole from the upper end of the middle die hole, and goes downward for a certain stroke to press the medicinal powder into tablets;

s4, punching and lifting the hole, and pushing the tablet out of the middle die hole by downward punching and lifting to finish the one-time tabletting process;

the punch is dropped to the original position at S5 to prepare for the next fill.

However, the conventional tablet press generally increases the production efficiency of the product by increasing the rotation speed of the rotary table, but increasing the rotation speed may result in more defective products of the produced product, and therefore, the pressing time is generally prolonged by increasing the diameter of the pressing wheel or increasing a set of pre-pressing wheels, so as to achieve the purposes of increasing the production efficiency and reducing the defective products, but the yield of the two ways is still to be improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the not high shortcoming of prior art medium-pressure mascerating machine's production efficiency, provide a rotary tablet press, this tablet press can the effectual production efficiency who improves the product.

In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:

the utility model provides a rotary tablet press, includes frame, loading hopper, raises whitewashed ware, an upper fixed plate, well fixed plate, bottom plate, goes up die, well mould, lower die, goes up pinch roller and pinch roller down, an upper fixed plate, well fixed plate and bottom plate loop through the synchronous pivoted drive arrangement of a drive three from last to down and connect, drive arrangement installs in the frame, raise whitewashed ware and be located well fixed plate top, raise whitewashed ware and be connected its characterized in that with the loading hopper: the stamping die is characterized in that two rows of mounting holes are formed in corresponding positions of the upper fixing plate, the middle fixing plate and the lower fixing plate, each row of mounting holes are in an annular array shape, the upper stamping die is arranged in the mounting hole in the upper fixing plate, the middle die is arranged in the mounting hole in the middle fixing plate, the lower stamping die is arranged in the mounting hole in the lower fixing plate, the upper pressing wheel is arranged above each row of mounting holes in the upper fixing plate and located on a rotating path of the upper stamping die, the upper pressing wheel is arranged below each row of mounting holes in the lower fixing plate and located on a rotating path of the lower stamping die, and the upper pressing wheel and the lower pressing wheel are mounted on the rack through pressing wheel shafts.

The pinch roller shaft is connected with a driving device I, and the driving device I can drive the pinch roller shaft to rotate.

The pinch roller axle is arranged in an inclined mode, and the inclination angle of the pinch roller axle is as follows: 0 to 90 degrees.

The inclination angle of the pinch roller shaft is 45 degrees.

Compared with the prior art, the utility model discloses following beneficial effect has:

the utility model mainly arranges two rows of mounting holes at corresponding positions on the upper fixing plate, the middle fixing plate and the lower fixing plate, and each row of mounting holes is in an annular array shape, thus greatly increasing the number of the mounting holes, increasing the number of the punching dies, further leading the upper fixing plate, the middle fixing plate and the lower fixing plate to rotate for one week under the driving of the driving device, leading the produced product amount to be more and further increasing the production efficiency of the product; because increased a row of mounting hole on the basis of former design, will increase corresponding upper and lower pinch roller, although increased the spare part of tablet press, nevertheless, because the upper pinch roller is located the upper fixed plate top, the lower pinch roller is located the below of bottom plate, can not increase the horizontal appearance profile of tablet press like this, when having avoided improving production efficiency, increases the whole volume of tablet press.

The utility model discloses a I drive pinch roller of drive arrangement rotates and then makes the pinch roller and lower pinch roller can rotate, reduces the friction of upper and lower pinch roller and upper and lower punching die.

The pressure wheel shaft is inclined and arranged, and the inclination angle is: the arrangement is 0-90 degrees, so that the upper pressing wheel and the lower pressing wheel are in an inclined state, the basic time of the upper pressing wheel, the lower pressing wheel, the upper punching die and the lower punching die is longer under the condition that the diameters of the upper pressing wheel and the lower pressing wheel are not increased, the same rotating speed of the upper fixing plate, the middle fixing plate and the lower fixing plate is ensured, the tabletting time can be increased by 2-5 times, and the quality of a product obtained by compression is better; in addition, under the condition of the same tabletting time, the rotating speed of the upper fixing plate, the middle fixing plate and the lower fixing plate can be increased to 2-5 times, so that the production efficiency of the product is improved; more importantly, the contact time of the pressing wheel and the punching die can be prolonged under the condition that the diameters of the upper pressing wheel and the lower pressing wheel are not increased, the quality of products is ensured, and meanwhile, the volume of the tablet press is not increased.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a top view of the upper fixing plate, the middle fixing plate and the lower fixing plate of the present invention.

Fig. 3 is a schematic diagram of the position relationship between the pressing wheel shaft and the upper punch die of the present invention.

Reference numerals: the automatic feeding device comprises a machine frame 1, a feeding hopper 2, a powder feeder 3, an upper fixing plate 4, a middle fixing plate 5, a lower fixing plate 6, an upper punching die 7, a middle die 8, a lower punching die 9, an upper pressing wheel 10, a lower pressing wheel 11, a mounting hole 12, a pressing wheel shaft 13, a shaft 14, a motor 15, a driven belt wheel 16, a driving belt wheel 17 and a belt 18.

Detailed Description

The present invention will be further described with reference to the following examples, which are only some, but not all, of the examples of the present invention. Based on the embodiments in the present invention, other embodiments used by those skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

A rotary tablet press comprises a frame 1, a feeding hopper 2, a powder feeder 3, an upper fixing plate 4, a middle fixing plate 5, a lower fixing plate 6, an upper punch die 7, a middle die 8, a lower punch die 9, an upper pinch roller 10 and a lower pinch roller 11, wherein the upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6 are sequentially connected through a driving device which drives the three to rotate synchronously from top to bottom, the driving device is installed on the frame 1, the powder feeder 3 is positioned above the middle fixing plate 5, the powder feeder 3 is connected with the feeding hopper 2, two rows of mounting holes 12 are respectively arranged at corresponding positions on the upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6, each row of mounting holes 12 are in an annular array shape, the upper punch die 7 is arranged in the mounting hole 12 on the upper fixing plate 4, the middle die 8 is arranged in the mounting hole 12 on the middle fixing plate 5, the lower punch die 9 is arranged in the mounting hole, the upper pressing wheel 10 is arranged above each row of mounting holes 12 on the upper fixing plate 4, the upper pressing wheel 10 is located on a rotating path of the upper punching die 7, the upper pressing wheel 10 is arranged below each row of mounting holes 12 on the lower fixing plate 6, the lower pressing wheel 11 is located on a rotating path of the lower punching die 9, and the upper pressing wheel 10 and the lower pressing wheel 11 are mounted on the rack 1 through a pressing wheel shaft 13.

Wherein the feeding hopper 2 and the powder feeder 3 are used for feeding materials into the middle die 8; the upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6 are driven to synchronously rotate by a driving device, in practice, the upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6 are connected through a shaft 14, the driving device is a gear or belt driving device, the driving device can adopt any one of the prior art, and only the upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6 need to be driven synchronously.

In this embodiment, the driving device includes a driving motor 15, a driven pulley 16, a driving pulley 17 and a belt 18, the driven pulley 16 is connected with the shaft 14, the driving pulley 17 is connected with the motor 15, the motor 15 is installed on the frame 1, and the driving pulley 17 is connected with the driven pulley 16 through the belt 18.

The upper fixing plate 4, the middle fixing plate 5 and the lower fixing plate 6 rotate to enable the upper punching die 7, the middle die 8 and the lower punching die 9 to rotate along with the upper punching die, and the purpose of slicing is achieved through the action of the upper pressing wheel 10 and the lower pressing wheel 11.

Further preferably, the pressure roller shaft 13 is connected with a driving device I, and the driving device I can drive the pressure roller shaft 13 to rotate; the drive unit I can be referred to.

Example 2

The present embodiment is further optimized on the basis of embodiment 1, in the present embodiment, the pressure roller shaft 13 is arranged in an inclined manner, and the inclined angle is: 0-90 degrees; the inclination angle may be 2 °, 10 °, 40 °, 45 °, 50 °, 60 °, 70 °, 80 °, or 90 °, and in this embodiment, the inclination angle of the pinch roller shaft 13 is 45 °.

Thus, the pressing wheel shaft 13 is obliquely arranged, and when the driving device drives the shaft 14 to rotate, the pressing time can be prolonged under the same rotating speed, and the pressing time can be increased by 2-5 times; meanwhile, the rotating speed can be increased by 2-5 times under the condition of ensuring the same tabletting time, the yield is increased by increasing the rotating speed, and the yield of the product is further increased by arranging two rows of mounting holes 12.

It should be noted that, because the inclination angle of the pinch roller shaft 13 is increased, when the inclination angle is increased to 90 °, the pinch roller shaft 13 is in a vertical state, and at this time, in order to ensure that the upper pinch roller 10 and the lower pinch roller 11 press the upper punch 7 and the lower punch 9, the shapes of the upper pinch roller 10 and the lower pinch roller 11 can be changed to be in a circular truncated cone shape, and the side surfaces and the top surfaces of the upper pinch roller 10 and the lower pinch roller 11 are connected through a transition arc; alternatively, the contact surfaces of the upper pressing wheel 10 and the lower pressing wheel 11 and the upper die 7 and the lower die 9 are arc-shaped, so that the upper die 7 and the lower die 9 are pressed downwards.

Claims (4)

1. The utility model provides a rotary tablet press, includes frame, loading hopper, raises whitewashed ware, an upper fixed plate, well fixed plate, bottom plate, goes up die, well mould, lower die, goes up pinch roller and pinch roller down, an upper fixed plate, well fixed plate and bottom plate loop through the synchronous pivoted drive arrangement of a drive three from last to down and connect, drive arrangement installs in the frame, raise whitewashed ware and be located well fixed plate top, raise whitewashed ware and be connected its characterized in that with the loading hopper: the stamping die is characterized in that two rows of mounting holes are formed in corresponding positions of the upper fixing plate, the middle fixing plate and the lower fixing plate, each row of mounting holes are in an annular array shape, the upper stamping die is arranged in the mounting hole in the upper fixing plate, the middle die is arranged in the mounting hole in the middle fixing plate, the lower stamping die is arranged in the mounting hole in the lower fixing plate, the upper pressing wheel is arranged above each row of mounting holes in the upper fixing plate and located on a rotating path of the upper stamping die, the upper pressing wheel is arranged below each row of mounting holes in the lower fixing plate and located on a rotating path of the lower stamping die, and the upper pressing wheel and the lower pressing wheel are mounted on the rack through pressing wheel shafts.

2. A rotary tablet press according to claim 1, wherein: the pinch roller shaft is connected with a driving device I, and the driving device I can drive the pinch roller shaft to rotate.

3. A rotary tablet press according to claim 2, wherein: the pinch roller axle is arranged in an inclined mode, and the inclination angle of the pinch roller axle is as follows: 0 to 90 degrees.

4. A rotary tablet press according to claim 3, wherein: the inclination angle of the pinch roller shaft is 45 degrees.

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