CN211641095U - Tablet tabletting device - Google Patents

Abstract

The utility model relates to a tablet pressing device, which comprises a body, the body is provided with a rotating shaft, the lower part of the rotating shaft is connected with a motor, the upper part is sequentially fixed with a lower turntable and an upper turntable from bottom to top, the lower turntable is The upper outer edge is annularly provided with several pressing holes, the upper part of the pressing hole is provided with a limit ring 1, and the bottom is provided with an annular support plate 1, and the pressing hole is provided with a downward pressure above the limit ring 1 The lower part of the lower pressing module is connected to the ejector rod; the upper outer edge of the upper turntable is annularly provided with a number of through holes corresponding to the pressing holes one-to-one, and the top and bottom of the through holes are respectively fixed with limit positions The second ring and the second annular support plate, the through hole is provided with a pressure rod, the bottom of the pressure rod is provided with an upper pressure module, the pressure rod is provided with a second retaining ring, and the second retaining ring is located in the through hole, blocking the A compression spring is arranged between the second ring and the second support plate; the traditional electric push rod and oil cylinder rod for ejecting and sheet pressing are replaced by a mechanized movement method, which saves costs.

Description

A tablet pressing device

technical field

The utility model relates to the technical field of pharmaceutical devices, in particular to a tablet pressing device.

Background technique

The rotary tablet press is mainly used for tablet production in the pharmaceutical industry. It can press granular or powdery raw materials into various tablets. At the same time, the rotary tablet press is also suitable for chemical, food, electronics, plastics, powder metallurgy, The mechanical structure is simple, and the outer casing is fully enclosed, made of stainless steel, and complies with GMP standards.

However, during the use of the traditional rotary tablet press, the tablet cannot be pushed in the reverse direction after the tableting is completed, which causes the tablet to stick to the inside of the tableting groove, which affects the continuous use of the device, reduces the production rate of the device, and increases the output of the tablet. During the feeding process, it is necessary to use the electric pneumatic cylinder to drive the push rod to push the medicine out. The use of the electric pneumatic cylinder increases the production cost of the device. At the same time, after the discharging is completed, the medicine powder inside the mold groove cannot be cleaned continuously, which affects the content of the finished tablet. In view of the above problems, the utility model provides a tablet pressing device with simple structure, convenient use and high production efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a tablet pressing device with simple structure, convenient use and high production efficiency.

In order to solve the above-mentioned problems, the technical scheme adopted by the present utility model is:

A tablet pressing device comprises a body, the body is provided with a rotating shaft, the lower part of the rotating shaft is connected with a motor, the upper part is sequentially fixed with a lower turntable and an upper turntable from bottom to top, the upper outer edge of the lower turntable is annular There are several pressing holes, the upper part of the pressing hole is provided with a limit ring 1, and the bottom is provided with a ring-shaped support plate 1; The lower part of the pressing module is connected with the ejector rod;

The upper outer edge of the upper turntable is annularly provided with a plurality of through holes corresponding to the pressing holes one-to-one. The top and bottom of the through holes are respectively fixed with a second limit ring and a second annular support plate. The through holes There is a pressure rod inside, an upper pressure module is arranged at the bottom of the pressure rod, a retaining ring 2 is arranged on the pressing rod, and the retaining ring 2 is located in the through hole. There is a compression spring between;

The body is provided with an ejector rod support plate below the lower turntable, the ejector rod support plate is located directly below several of the ejector rods, and the top surface of the ejector rod support plate is an inclined plane or a curved surface;

The body is provided with a pressure rod support plate above the upper turntable, the pressure rod support plate is located directly above a plurality of the pressure rods, and the bottom surface of the pressure rod support plate is an inclined plane or a curved surface;

A fixing column is fixed on the body beside the highest part of the top surface of the ejector support plate, and a material guide plate and a lower hopper are fixed on the fixing column, and the material guide plate is located above the pressing hole, The lower hopper is located below the material guide plate, and its inner end is in contact with the side wall of the lower turntable;

A feeding pipe is arranged above the lower turntable, and the feeding pipe is connected with a feeding bin provided on the body.

As a further improvement of the present invention, a dust suction pipe is arranged above the lower turntable, the dust suction pipe is connected with a negative pressure fan, and the negative pressure fan is connected with a dust collecting box.

As a further improvement of the present invention, a retaining ring 1 is provided on the top rod, and a spring is provided between the retaining ring 1 and the supporting plate 1. In a free state, the pressing module is located on the pressing sheet. There is a gap in the hole and between it and the limit ring 1.

As a further improvement of the present invention, the ejector support plate is arc-shaped or annular, and the material guide plate is located above the highest position of the top surface of the ejector support plate.

As a further improvement of the present invention, the pressing rod supporting plate is arc-shaped, annular or cylindrical, and the lowest position of the bottom surface of the pressing rod supporting plate and the highest position of the top surface of the ejector rod supporting plate are located on two sides of the rotating shaft, respectively. side.

As a further improvement of the present invention, the pressure rod support plate is fixed on the top of the body through a hydraulic cylinder.

As a further improvement of the present invention, the material guide plate is arranged on the fixed column in a horizontally and vertically adjustable manner.

As a further improvement of the present invention, the included angle between the material guide plate and the vertical plane is 30°.

As a further improvement of the present invention, a smooth layer is provided on the bottom surface of the pressure rod support plate and the top surface of the ejector rod support plate.

As a further improvement of the present invention, a rotating brush is provided above the lower turntable to sweep the upper surface of the lower pressing module.

The beneficial effects produced by the above technical solutions are:

The utility model provides a tablet pressing device, which has a simple structure and an ingenious design. By arranging an ejector rod support plate with an inclined top surface under the lower turntable, the ejector rod can move along the axis of the rotation shaft when it moves. The inclined top surface movement of the ejector rod support plate realizes the mechanical automatic lifting of the ejector rod. During the rotation of the lower turntable, the ejector rod cooperates with the ejector rod support plate to complete the ejection of the tablet, and then cooperates with the feeding tube and the feeding tube. The material guide plate is used for adding raw materials and exporting tablets; by setting a pressure rod support plate above the upper turntable, the pressure rod moves along the inclined bottom surface of the pressure rod support plate when it is driven by the rotating shaft. The mechanical automatic lifting of the pressing rod is realized. During the rotation of the upper turntable, the pressing rod cooperates with the pressing rod supporting plate to complete the tablet pressing operation. The height of the pressing rod support plate is reasonably designed by the hydraulic oil cylinder, so that when the pressing rod is lowered to the lowest position, the tablet pressing operation is just completed.

When the spring is in a free state, the pressing module is located in the pressing hole and there is a gap between it and the limit ring 1. After the pressing operation is completed, the pressing module moves upward under the action of the spring. For a certain distance, the formed tablet is boosted in the reverse direction, which effectively avoids the adhesion of the tablet to the side wall of the tableting hole, facilitates the continuous use of the device, and effectively improves the production efficiency.

By setting a dust suction pipe, after the tablets are exported, the powder residue on the lower pressing module is extracted, so as to avoid dust floating and ensure the accuracy of tablet content.

Description of drawings

In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or the prior art. Obviously, the following descriptions The accompanying drawings are some embodiments of the present invention, and for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.

Figure 1 is a schematic structural diagram of the present invention.

Figure 2 is a schematic top view of the structure of the middle and lower turntables of the present invention.

3 is a schematic cross-sectional structural diagram of the middle and lower turntables of the present invention.

FIG. 4 is a partial enlarged schematic view of the position A in FIG. 3 .

FIG. 5 is a schematic view of the spring of FIG. 4 in a free state.

6 is a schematic cross-sectional structural diagram of the upper turntable in the present invention.

FIG. 7 is a partial enlarged schematic view of B in FIG. 6 .

8 is a schematic structural diagram of a middle pressure rod support plate of the present invention.

Among them: 1 body, 2 rotating shaft, 3 lower turntable, 3-1 pressing hole, 3-2 limiting ring 1, 3-3 supporting plate 1, 4 ejector rod, 4-1 retaining ring 1, 5 pressing module, 6 spring, 7 upper turntable, 7-1 through hole, 7-2 limit ring 2, 7-3 support plate 2, 8 pressure rod, 8-1 retaining ring 2, 9 upper pressure module, 10 pressure spring, 11 top Rod support plate, 12 pressure rod support plate, 13 hydraulic cylinder, 14 dust suction pipe, 15 negative pressure fan, 16 feeding pipe, 17 feeding bin, 18 mounting plate, 19 feeding plate, 20 lower hopper, 21 fixed column.

Detailed ways

In order to make the objectives, technical solutions and advantages of the present utility model more clear, the utility model will be described clearly and completely below with reference to the accompanying drawings and specific embodiments.

A tablet pressing device as shown in Figures 1-8 includes a body 1 on which a rotating shaft 2 is provided, the lower part of the rotating shaft 2 is connected to a motor through a reducer, and the upper part is fixed in sequence from bottom to top There are a lower turntable 3 and an upper turntable 7. The upper outer edge of the lower turntable 3 is annularly provided with several pressing holes 3-1. The annular support plate 1 3-3 is provided with a pressing module 5 in the pressing hole 3-1 above the limiting ring 3-2, and the lower part of the pressing module 5 is connected with the ejector rod 4 .

The upper outer edge of the upper turntable 7 is provided with a plurality of through holes 7-1 that are coaxial with the tablet pressing holes 3-1 in one-to-one correspondence, and a limit ring is fixed on the top and bottom of the through holes 7-1 respectively. The second 7-2 and the annular support plate 2 7-3, the through hole 7-1 is provided with a pressing rod 8, the bottom of the pressing rod 8 is provided with an upper pressing module 9, and the pressing rod 8 is provided with a stopper The second ring 8-1, the second retaining ring 8-1 is located in the through hole 7-1, and a compression spring 10 is provided between the second retaining ring 8-1 and the second supporting plate 7-3, in the free state , Under the action of the compression spring 10, the second retaining ring 8-1 of the compression rod 8 is pressed against the second limiting ring 7-2.

The body 1 is provided with an ejector rod support plate 11 below the lower turntable 3 , the ejector rod support plate 11 is located directly below a plurality of the ejector rods 4 , and the top surface of the ejector rod support plate 11 is an inclined plane or surface. The ejector pin support plate 11 is arc-shaped or annular, and the material guide plate 19 is located above the highest position of the top surface of the ejector pin support plate 11 . By arranging the ejector rod support plate 11 with an inclined top surface under the lower turntable 3, the ejector rod 4 moves along the inclined top surface of the ejector rod support plate 11 when driven by the rotating shaft 2, so as to realize the ejector rod. During the rotation of the lower turntable 3, the ejector rod 4 cooperates with the ejector rod support plate 11 to complete the ejection of the tablet, and then cooperates with the feeding tube 16 and the material guide plate 19 to add raw materials and tablet. export.

The body 1 is provided with a pressure rod support plate 12 above the upper turntable 7, the pressure rod support plate 12 is located directly above a plurality of the pressure rods 8, and the bottom surface of the pressure rod support plate 12 is an inclined plane or surface. The pressing rod supporting plate 12 is arc-shaped, annular or cylindrical, and the lowest position of the bottom surface of the pressing rod supporting plate 12 and the highest position of the top surface of the ejector rod supporting plate 11 are located on both sides of the rotating shaft 2 respectively. The pressure rod support plate 12 is fixed on the top of the body 1 through a hydraulic cylinder 13 . By arranging a pressing rod supporting plate 12 above the upper turntable 7, the pressing rod 8 moves along the inclined bottom surface of the pressing rod supporting plate 12 when the pressing rod 8 is driven by the rotating shaft 2 to move, so as to realize the mechanical function of the pressing rod 8. During the rotation of the upper turntable 7, the pressing rod 8 cooperates with the pressing rod supporting plate 12 to complete the tablet pressing operation. The height of the pressing rod support plate 12 is reasonably designed by the hydraulic cylinder 13, so that when the pressing rod 8 is lowered to the lowest position, the tablet pressing operation is just completed.

On the body 1, a fixing column 21 is fixed beside the highest part of the top surface of the ejector support plate 11, and a material guide plate 19 and a lower hopper 20 are fixed on the fixing column 21. Above the tablet pressing hole 3-1, the lower hopper 20 is located below the material guide plate 19, and its inner end is in contact with the side wall of the lower turntable 3 with a certain gap. The guide plate 19 is located on the side above the highest position of the top surface of the ejector rod support plate 11, where the tablet is ejected by the ejector rod 4 and swept into the lower hopper by the guide plate 19 20, and then enter the storage box arranged under the lower hopper 20.

A feeding pipe 16 is provided above the lower turntable 3 . The feeding pipe 16 is connected to a feeding bin 17 provided on the body 1 , and the feeding bin 17 is fixed on the body 1 through a mounting plate 18 .

A dust suction pipe 14 is arranged above the lower turntable 3, and the dust suction pipe 14 is connected with a negative pressure fan 15, and the negative pressure fan 15 is connected with a dust collecting box. By setting the dust suction pipe 14, after the tablets are drawn out, the powder residue on the lower pressing module 5 is extracted, so as to avoid dust floating and ensure the accuracy of the tablet content. A rotating brush may also be provided above the lower turntable 3 to sweep the upper surface of the lower pressing module 5, but the rotating speed of the rotating brush should not be too high to prevent a large amount of cumbersome dust from floating. Best used in combination.

The top rod 4 is provided with a retaining ring 1 4-1, and a spring 6 is provided between the retaining ring 1 4-1 and the supporting plate 1 3-3. There is a gap between the pressing hole 3-1 and the limiting ring 1 3-2. After the pressing operation is completed, the pressing module 5 moves upward for a certain distance under the action of the spring 6. The tablet is reversely boosted, which effectively avoids the adhesion of the tablet to the side wall of the tableting hole 3-1, facilitates the continuous use of the device, and effectively improves the production efficiency.

The guide plate 19 is horizontally and vertically adjustable on the fixing column 21 . The angle between the guide plate 19 and the vertical plane is 30°. By adjusting the height of the material guide plate 19 reasonably, after the tablet is ejected, the height of the material guide plate 19 can just remove the tablet, and prevent interference with the pressing module 5 . By adjusting the horizontal position of the material guide plate 19 reasonably, it can be in the best material guide position.

The bottom surface of the pressing rod support plate 12 and the top surface of the top rod supporting plate 11 are provided with a smooth layer, so that the pressing rod 8 and the top rod 4 can slide smoothly along the smooth layer.

In this embodiment, the rotating shaft 2 rotates counterclockwise, and the highest position of the ejector rod support plate 11 , the material guide plate 19 , the dust suction pipe 14 , the feeding pipe 16 and the lowest position of the pressure rod support plate 12 are arranged in the counterclockwise direction. , and respectively correspond to one of the tableting holes 3-1 to perform tableting operation.

Specific working method:

During tablet compression, the tableting hole 3-1 is charged at the feeding tube 16, and the spring 6 is in a free state at this time;

At the lowest position of the pressing rod support plate 12, the pressing rod 8 enters the tablet pressing hole 3-1 to push the lower pressing module 5 to the limit ring one 3-2 and perform tablet pressing operation;

After leaving the lowest position of the pressing rod supporting plate 12, under the action of the pressing spring 10, the pressing rod supporting plate 12 gradually moves away from the pressing sheet hole 3-1, and the spring 6 pushes up the pressing module 5 A distance to prevent the tablet from adhering to the side wall of the tableting hole 3-1;

At the highest position of the ejector rod support plate 11, the ejector rod 4 pushes out the tablets, and the guide plate 19 provided here guides the tablets into the lower hopper 20;

At the suction pipe 14, the powder on the pressing module 5 is sucked away;

The tablet pressing operation is performed in sequence.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, but not to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements to some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions in the embodiments of the present invention. .

Claims (9)

1. The tablet pressing device is characterized by comprising a machine body (1), wherein a rotating shaft (2) is arranged on the machine body (1), the lower portion of the rotating shaft (2) is connected with a motor, a lower rotary table (3) and an upper rotary table (7) are fixedly arranged on the upper portion of the rotating shaft from bottom to top in sequence, a plurality of tablet pressing holes (3-1) are annularly formed in the upper outer edge of the lower rotary table (3), a first limiting ring (3-2) is arranged on the upper portion of each tablet pressing hole (3-1), an annular first supporting plate (3-3) is arranged at the bottom of each tablet pressing hole, a pressing module (5) is arranged above the first limiting ring (3-2) in each tablet pressing hole (3-1), and the lower portion of each pressing module (5) is connected with a top rod;

a plurality of through holes (7-1) which correspond to the pressure sheet holes (3-1) in a one-to-one manner are annularly arranged on the outer edge of the upper rotary table (7), a limiting ring II (7-2) and an annular support plate II (7-3) are fixedly arranged at the top and the bottom of each through hole (7-1), a pressure rod (8) is arranged in each through hole (7-1), an upper pressure mold block (9) is arranged at the bottom of each pressure rod (8), a check ring II (8-1) is arranged on each pressure rod (8), the check ring II (8-1) is located in each through hole (7-1), and a pressure spring (10) is arranged between each check ring II (8-1) and each support plate II (7-3);

a mandril supporting plate (11) is arranged below the lower turntable (3) on the machine body (1), the mandril supporting plate (11) is positioned under the mandrils (4), and the top surface of the mandril supporting plate (11) is an inclined plane or a curved surface;

a pressure lever supporting plate (12) is arranged above the upper turntable (7) on the machine body (1), the pressure lever supporting plate (12) is positioned right above the pressure levers (8), and the bottom surface of the pressure lever supporting plate (12) is an inclined plane or a curved surface;

a fixed column (21) is fixedly arranged beside the highest position of the top surface of the ejector rod supporting plate (11) on the machine body (1), a material guide plate (19) and a blanking hopper (20) are fixedly arranged on the fixed column (21), the material guide plate (19) is positioned above the sheet pressing hole (3-1), the blanking hopper (20) is positioned below the material guide plate (19), and the inner end of the blanking hopper is attached to the side wall of the lower rotary table (3);

the feeding pipe (16) is arranged above the lower turntable (3), and the feeding pipe (16) is connected with a feeding bin (17) arranged on the machine body (1).

2. A tablet pressing device as claimed in claim 1, wherein a dust suction pipe (14) is arranged above the lower rotary disc (3), the dust suction pipe (14) is connected with a negative pressure fan (15), and the negative pressure fan (15) is connected with a dust collection box.

3. A tablet pressing device as claimed in claim 1, wherein the top rod (4) is provided with a first retaining ring (4-1), a spring (6) is arranged between the first retaining ring (4-1) and the first support plate (3-3), and in a free state, the pressing module (5) is positioned in the tablet pressing hole (3-1) and has a gap with the first limiting ring (3-2).

4. A tablet press as claimed in claim 1, wherein the top bar support plate (11) is curved or circular and the material guide plate (19) is located above the highest position of the top surface of the top bar support plate (11).

5. A tablet press device as claimed in claim 1, wherein the press bar support plate (12) is arc-shaped, ring-shaped or cylindrical, and the lowest position of the bottom surface of the press bar support plate (12) and the highest position of the top surface of the top bar support plate (11) are respectively located at both sides of the rotary shaft (2).

6. A tablet press as claimed in claim 1, characterised in that the press bar support plate (12) is secured to the top of the housing (1) by means of a hydraulic ram (13).

7. A tablet press device as claimed in claim 1, wherein the guiding plate (19) is horizontally and vertically adjustable on the fixing post (21).

8. A tablet press as claimed in claim 1, wherein the guide plate (19) is angled at 30 ° to the vertical plane.

9. A tablet press as claimed in claim 1, wherein the bottom surface of the press bar support plate (12) and the top surface of the ejector pin support plate (11) are provided with a smooth layer.

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