CN214419693U

CN214419693U - Multi-head tablet press

Info

Publication number: CN214419693U
Application number: CN202120225119.4U
Authority: CN
Inventors: 邵海欣; 王丽军; 姬继伟
Original assignee: Henan Dashu Food Technology Co ltd
Current assignee: Henan Dashu Food Technology Co ltd
Priority date: 2021-01-27
Filing date: 2021-01-27
Publication date: 2021-10-19
Anticipated expiration: 2031-01-27

Abstract

The utility model relates to a multi-head tablet press, which effectively solves the problems of poor outer edge compaction effect and easy stripping when tablets are pressed; the technical scheme includes that a plurality of upper punches are uniformly distributed and penetrated on the upper circumference of an upper rotary table, a plurality of lower punches are uniformly distributed and penetrated on the lower circumference of a lower rotary table, a plurality of vertical die through holes are uniformly distributed and arranged on the upper circumference of a middle rotary table, a bottom plate is arranged below the lower rotary table, the lower ends of the lower punches are abutted against the bottom plate, the upper ends of the lower punches extend into the die through holes, a first pressing wheel is arranged on one side of the upper rotary table, a second pressing wheel vertically aligned with the first pressing wheel is arranged on one side of the lower rotary table, the first pressing wheel presses the upper punches passing through downwards, the second pressing wheel presses the lower punches passing through upwards, and a conical section with a small upper part and a large lower part is arranged in the middle section of the inner wall of the die through holes; the utility model discloses a packing force to axial department can be applyed to the outer fringe of powder to toper section inner wall to with the outer fringe compaction of material, avoid loose stripping.

Description

Multi-head tablet press

Technical Field

The utility model relates to a former field specifically is a bull tablet press.

Background

The tablet press is a forming device for pressing powder into tablets, and is widely applied to the fields of food, pharmacy and the like; the working principle of the tablet press is that the upper punch and the lower punch press the powder in the die to compact the powder into a sheet, and the powder does not have good fluidity and the characteristic of no difference in pressure transmission like liquid, so that the compaction effect of the tablet near the upper surface and the lower surface which are in direct contact with the upper punch and the lower punch is good, the pressure at the periphery of the tablet is small, the tablet cannot be effectively compacted and molded, and the tablet is easy to strip.

Disclosure of Invention

To the above situation, for overcoming prior art's defect, the utility model provides a bull tablet press, the effectual outer fringe compaction effect is poor when having solved the tablet suppression, takes off the problem of material easily.

The technical scheme includes that the multi-head tablet press comprises an upper rotary table, a middle rotary table and a lower rotary table, wherein the three rotary tables are coaxially arranged at intervals from top to bottom, a plurality of upper punches are uniformly distributed and penetrated on the upper circumference of the upper rotary table, a plurality of lower punches are uniformly distributed and penetrated on the lower circumference of the lower rotary table, a first pressure spring is arranged between the upper ends of the upper punches and the upper surface of the upper rotary table, a second pressure spring is arranged between the lower ends of the lower punches and the lower surface of the lower rotary table, a plurality of vertical die through holes are uniformly distributed and opened on the circumference of the middle rotary table, the upper punches, the lower punches and the die through holes correspond to one another one to one, a bottom plate is arranged below the lower rotary table, the lower ends of the lower punches abut against the bottom plate, the upper ends of the lower punches extend into the die through holes, a first pressure roller is arranged on one side of the upper rotary table, a second pressure roller vertically aligned with the first pressure roller is arranged on one side of the lower rotary table, the first pressure roller presses the upper punches passing through the second pressure roller, therefore, the upper punch and the lower punch press the powder in the through hole of the die, the middle section of the inner wall of the through hole of the die is provided with a conical section with a small upper part and a large lower part, and the conical section can apply component force to the powder at the axis when the conical section extrudes the powder.

Furthermore, a groove located at the downstream of the lower pressing wheel is formed in the upper surface of the bottom plate, when the lower punch passes through the groove after passing through the lower pressing wheel, the lower punch moves downwards under the action of the second pressure spring, so that the upper end of the lower punch is separated from the through hole of the die, and the tablets in the through hole of the die fall from the lower orifice.

Furthermore, the length of the conical section is smaller than the thickness of the tablet, after the upper punch and the lower punch extrude to the limit position towards the middle, the lower end of the upper punch is slightly higher than the conical section, and the upper end of the lower punch is slightly lower than the conical section.

The utility model discloses a packing force to axial department can be applyed to the outer fringe of powder to toper section inner wall to with the outer fringe compaction of material, avoid loose stripping.

Drawings

Fig. 1 is a front cross-sectional view of two pinch roller positions of the present invention.

Fig. 2 is a top view of the upper turntable.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings.

As shown in figures 1 to 2, the utility model comprises an upper rotary table 1, a middle rotary table 2 and a lower rotary table 3, wherein the three rotary tables are coaxially arranged at intervals from top to bottom, a plurality of upper punches 4 are uniformly arranged on the upper circumference of the upper rotary table 1, a plurality of lower punches 5 are uniformly arranged on the lower rotary table 3, a first pressure spring 6 is arranged between the upper ends of the upper punches 4 and the upper surface of the upper rotary table 1, a second pressure spring 7 is arranged between the lower ends of the lower punches 5 and the lower surface of the lower rotary table 3, a plurality of vertical die through holes 8 are uniformly arranged on the upper circumference of the middle rotary table 2, the upper punches 4, the lower punches 5 and the die through holes 8 are in one-to-one correspondence, a bottom plate 9 is arranged below the lower rotary table 3, the lower ends of the lower punches 5 are abutted against the bottom plate 9, the upper ends of the lower punches extend into the die through holes 8, a first pinch roller 10 is arranged on one side of the upper rotary table 1, a second pinch roller 11 vertically aligned with the first pinch roller 10 is arranged on one side of the lower rotary table 3, the first pressing wheel 10 presses the upper punch 4 passing through downwards, the second pressing wheel 11 presses the lower punch 5 passing through upwards, so that the upper punch 5 and the lower punch 5 press the powder in the through hole 8 of the die, the middle section of the inner wall of the through hole 8 of the die is provided with a conical section 12 with a small upper part and a large lower part, and the conical section 12 can apply component force to the powder at the axis when the conical section 12 extrudes the powder.

The upper surface of the bottom plate 9 is provided with a groove 13 positioned at the downstream of the lower pressing wheel, when the lower punch 5 passes through the groove 13 after passing through the lower pressing wheel, the lower punch 5 moves downwards under the action of the second pressure spring 7, so that the upper end of the lower punch 5 is separated from the through hole 8 of the die, and the tablets in the through hole 8 of the die fall from the lower orifice.

The length of the conical section 12 is smaller than the thickness of the tablet, after the upper punch and the lower punch are pressed towards the middle to the limit position, the lower end of the upper punch 4 is slightly higher than the conical section 12, and the upper end of the lower punch 5 is slightly lower than the conical section 12.

When the utility model is used, the upper turntable 1, the middle turntable 2 and the lower turntable 3 synchronously rotate, before the upper punch 4 and the lower punch 5 in a certain group rotate to two pressure roller positions, under the action of the first pressure spring 6, the lower end of the upper punch 4 is higher than the through-hole 8 of the die, the lower end of the lower punch 5 is propped against the bottom plate 9, the upper end extends into the lower end of the through-hole 8 of the die, the second pressure spring 7 is compressed, thereby the upper end of the through-hole 8 of the die is opened, the lower end is closed, at the moment, powder is added into the through-hole 8 of the die by the feeding mechanism, when the upper punch 4, the through-hole 8 of the die and the lower punch 5 in the group rotate to two pressure roller positions, the upper pressure roller downwards presses the upper punch 4, the lower pressure roller upwards presses the lower punch 5, thereby the powder in the middle of the two punches is pressed into a sheet, in the pressing process, the inner wall of the conical section 12 can apply a component force to the powder to the axis position, thereby the circumference of the powder is compacted, the loosening of the periphery of the powder is avoided; after the pressing wheel is rotated, the upper punch 4 is reset upwards under the action of the first pressure spring 6, when the upper punch is rotated to the position of the groove 13, the lower punch 5 moves downwards and exits from the through hole 8 of the die under the action of the second pressure spring 7, the lower end of the through hole 8 of the die is opened, tablets in the through hole 8 of the die fall off from the lower end, and the upper end of the lower punch 5 stretches into the through hole 8 of the die again after rotating out of the groove 13.

The utility model discloses a set up toper section 12 in mould through-hole 8, make upper and lower drift 5 when suppressing the powder, the packing force to axial department is applyed to the outer fringe of powder to the inner wall of toper section 12 to with the outer fringe compaction of material, avoid loose taking off the material.

Claims

1. A multi-head tablet press comprises an upper rotary table (1), a middle rotary table (2) and a lower rotary table (3), wherein three rotary tables are coaxially arranged at intervals from top to bottom, a plurality of upper punches (4) are uniformly arranged on the upper circumference of the upper rotary table (1) in a penetrating manner, a plurality of lower punches (5) are uniformly arranged on the upper circumference of the lower rotary table (3) in a penetrating manner, the multi-head tablet press is characterized in that a first pressure spring (6) is arranged between the upper ends of the upper punches (4) and the upper surface of the upper rotary table (1), a second pressure spring (7) is arranged between the lower ends of the lower punches (5) and the lower surface of the lower rotary table (3), a plurality of vertical die through holes (8) are uniformly arranged on the upper circumference of the middle rotary table (2), the upper punches (4), the lower punches (5) and the die through holes (8) are in one-to-one correspondence, a bottom plate (9) is arranged below the lower rotary table (3), the lower ends of the lower punches (5) are abutted against the bottom plate (9), and the upper ends of the lower punches extend into the die through holes (8), one side of going up carousel (1) is equipped with one first pinch roller (10), one side of lower carousel (3) is equipped with one and moves right second pinch roller (11) about with first pinch roller (10), first pinch roller (10) pushes down last drift (4) that pass through, second pinch roller (11) are with lower punch (5) the top-down pressure that passes through, thereby make powder preforming in upper and lower drift (5) to mould through-hole (8), the middle section of mould through-hole (8) inner wall is equipped with one big end down toper section (12), toper section (12) can exert the component force to axis department to the powder when toper section (12) are extruded.

2. A multi-headed tablet press according to claim 1, wherein the upper surface of the base plate (9) is provided with a groove (13) located downstream of the lower press wheel, and the lower punch (5) moves downwardly under the action of the second compression spring (7) as the lower punch (5) passes the groove (13) after passing the lower press wheel, so that the upper end of the lower punch (5) is released from the through-die hole (8) and the tablet in the through-die hole (8) falls out of the lower opening.

3. A multi-headed tablet press according to claim 1, wherein the length of the conical section (12) is less than the thickness of the tablet, and after the upper and lower punches have been pressed towards the middle to the extreme position, the lower end of the upper punch (4) is higher than the conical section (12) and the upper end of the lower punch (5) is lower than the conical section (12).