CN218535733U

CN218535733U - Pressure constant mechanism of tablet press

Info

Publication number: CN218535733U
Application number: CN202222794573.9U
Authority: CN
Inventors: 何靖之
Original assignee: Changsha Yuelu District Zhongnan Pharmaceutical Machinery Factory General Partnership
Current assignee: Changsha Yuelu District Zhongnan Pharmaceutical Machinery Factory General Partnership
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-02-28
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a tablet press pressure constant mechanism, which comprises a base, wherein vertical plates are symmetrically arranged at two ends of the upper surface of the base, a rotating shaft is rotatably arranged between the vertical plates and the top ends of the vertical plates, a plurality of eccentric wheel pressing parts are uniformly arranged on the rotating shaft, and the eccentric wheel pressing parts are positioned right above pressing rods, so that the pressure of each pressing rod keeps the same degree when pressing the medicinal powder, the pressure of the pressing rods of the tablet press is constant, the structural compactness of tablets is same, and the production quality of the tablets is guaranteed; set up connecting plate and drive plate isotructure in rotation axis one end and can make tablet press can mend medicine and preforming work in succession with depression bar cooperateing, jacking device and ejector pin that set up bottom the base can be at the downthehole ejecting of tablet follow pharmacy in the time quantum of mending medicine and preforming to the tablet that will fall on the base surface through the removal of medicine frame is pushed to one side, makes the press realize continuous operation, conveniently collects the tablet.

Description

Pressure constant mechanism of tablet press

Technical Field

The utility model belongs to the technical field of the tablet press, specifically speaking relates to invariable mechanism of tablet press pressure.

Background

The tablet press is mainly used for tablet process research in the pharmaceutical industry. The tablet machine presses the granular material into round and special-shaped materials with the diameter not more than 13mm and automatic continuous production equipment of flaky materials with characters, symbols and figures. Market part tablet press single duty cycle can suppress and produce a plurality of tablets, nevertheless needs guarantee the production standard according to the requirement with batch tablet of the same kind, and the pressure that receives need be guaranteed at tablet pressing process that every medicine hole indent inside powder received equals, otherwise can lead to the tight real degree of tablet structure to differ, influences the tablet quality.

In view of this, the present invention is provided.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model adopts the technical scheme that:

the tablet press pressure constant mechanism comprises a base, wherein vertical plates are symmetrically arranged at two ends of the upper surface of the base, a rotating shaft is rotatably arranged between the vertical plates close to the top end, a plurality of eccentric wheel pressing parts are uniformly arranged on the rotating shaft, a punching assembly located below the eccentric wheel pressing parts is arranged between the two vertical plates, a plurality of pharmaceutical die holes are formed in the upper surface of the base and located right below the punching assembly, a medicine frame located outside the pharmaceutical die holes is attached to the upper surface of the base, and a driving mechanism used for driving the medicine frame to move along the upper surface of the base is arranged at one end of the rotating shaft;

the driving mechanism comprises a connecting plate rotatably arranged at the top of a vertical plate, a driving plate arranged at one end of the rotating shaft, a first sliding column arranged outside the end part of the driving plate, a first sliding chute arranged on the connecting plate and connected with the first sliding column in a sliding manner, and a second sliding chute arranged on the end part of the connecting plate; a curved rod which is connected with the base in a sliding manner is fixedly arranged at two ends of the medicine frame, and a second sliding column which is connected with the second sliding groove in a sliding manner is arranged on a rod body at the outer side of the curved rod;

the ejection mechanism is arranged below the base.

As a preferred technical scheme of the utility model, ejection mechanism include square bottom block, evenly set up in square bottom block upper surface just inserts and locates the inside ejector pin of pharmacy nib, symmetry set up in the L type otic placode of square bottom block both sides with set up in the jacking device of L type otic placode bottom.

As a preferred technical scheme of the utility model, the stamping component comprises supporting plates symmetrically arranged at the middle part of the inner side wall of the vertical plate, a sliding rod arranged between every two supporting plates, a pressing plate with two ends respectively sleeved with the sliding rod and a plurality of pressing rods uniformly arranged on the lower surface of the pressing plate; the bottom end of the pressing rod is connected with the pharmaceutical die hole in an inserting mode, and the sliding rod is sleeved with a reset spring located below the pressing plate.

As an optimal technical scheme of the utility model, the eccentric wheel casting die with the drive plate sets up perpendicularly, the clamp plate top be provided with the arc protection shield that the eccentric wheel casting die corresponds, every the depression bar is located respectively under the eccentric wheel casting die.

As an optimal technical scheme of the utility model, one the riser top is provided with L type branch, the connecting plate top cup joint with L type branch tip.

As an optimal technical scheme of the utility model, the base upper surface is located the place ahead and the rear of medicine frame all be provided with the sliding sleeve that the curved bar body of rod cup jointed.

As the utility model discloses a preferred technical scheme, the base upper surface is located the collecting vat has all been seted up at the place ahead and the rear of medicine frame, and the collecting vat center is provided with the discharge notch.

Has the beneficial effects that:

a plurality of eccentric wheel pressing parts are uniformly arranged on the rotating shaft and are positioned right above the pressing rods, so that the same degree of pressure is kept when each pressing rod presses the medicinal powder, the pressure of the pressing rods of the tablet pressing machine is constant, the structural compactness of tablets is same, and the production quality of the tablets is ensured; set up connecting plate and drive plate isotructure in rotation axis one end and can make tablet press can mend medicine and preforming work in succession with depression bar cooperateing, jacking device and ejector pin that set up bottom the base can be at the downthehole ejecting of tablet follow pharmacy in the time quantum of mending medicine and preforming to the tablet that will fall on the base surface through the removal of medicine frame is pushed to one side, makes the press realize continuous operation, conveniently collects the tablet.

The following describes embodiments of the present invention in further detail with reference to the attached drawings.

Drawings

In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic top view of the present invention;

fig. 3 isbase:Sub>A schematic sectional perspective view alongbase:Sub>A-base:Sub>A of fig. 2 according to the present invention;

fig. 4 is a schematic structural diagram of the location B in fig. 3 according to the present invention.

In the figure: 1. a base; 2. a vertical plate; 3. a rotating shaft; 4. an eccentric wheel casting die; 5. preparing a pharmaceutical die hole; 6. a medicine frame; 7. a connecting plate; 701. a second chute; 8. a drive plate; 9. a first traveler; 10. a first chute; 11. a curved bar; 12. a second strut; 13. a square bottom block; 14. a top rod; 15. an L-shaped ear plate; 16. a jacking device; 17. a support plate; 18. a slide bar; 19. pressing a plate; 20. a pressure lever; 21. a return spring; 22. an arc-shaped protection plate; 23. an L-shaped strut; 24. a sliding sleeve; 25. collecting tank; 26. A medicine discharging notch.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used to illustrate the present invention.

As shown in fig. 1 to 4, a pressure-constant mechanism of a tablet press comprises a base 1, wherein two ends of the upper surface of the base 1 are symmetrically provided with vertical plates 2, a rotating shaft 3 is rotatably arranged between the vertical plates 2 and near the top end, a plurality of eccentric pressing parts 4 are uniformly arranged on the rotating shaft 3, a punching component is arranged between the two vertical plates 2 and below the eccentric pressing parts 4, a plurality of pharmaceutical mold holes 5 are arranged on the upper surface of the base 1 and right below the punching component, a medicine frame 6 positioned outside the pharmaceutical mold holes 5 is arranged on the upper surface of the base 1 in a fitting manner, the upper surface of the base 1 and the lower surface of the medicine frame 6 are both polished and ground, medicine powder is filled in the medicine frame 6, one end of the rotating shaft 3 is provided with a driving mechanism for driving the medicine frame 6 to move along the upper surface of the base 1, the other end of the rotating shaft 3 is fixedly connected with the output end of a speed-reducing motor of the tablet press, and a speed reducer is additionally arranged between the speed-reducing motor and the rotating shaft 3, so that the rotating shaft 3 rotates at a low speed;

the driving mechanism comprises a connecting plate 7 rotatably arranged at the top of one vertical plate 2, a driving plate 8 arranged at one end of the rotating shaft 3, a first sliding column 9 arranged at the outer side of the end part of the driving plate 8, a first sliding chute 10 arranged on the connecting plate 7 and connected with the first sliding column 9 in a sliding manner, and a second sliding chute 701 arranged at the end part of the connecting plate 7; a curved bar 11 which is connected with the base 1 in a sliding way is fixedly arranged at both ends of the medicine frame 6, and a second sliding column 12 which is connected with the second sliding groove 701 in a sliding way is arranged on the rod body at the outer side of the curved bar 11;

the ejection mechanism is arranged below the base 1;

in this embodiment, the ejection mechanism includes a square bottom block 13, a top rod 14 uniformly arranged on the upper surface of the square bottom block 13 and inserted into the pharmaceutical mold hole 5, L-shaped ear plates 15 symmetrically arranged on both sides of the square bottom block 13, and an ejection device 16 arranged at the bottom of the L-shaped ear plates 15; after the tablet in the pharmaceutical mold hole 5 is pressed, the jacking device 16 is started to drive the square bottom block 13 and the top rod 14 to ascend, and then the tablet in the pharmaceutical mold hole 5 is jacked out.

Specifically, the stamping component comprises support plates 17 symmetrically arranged in the middle of the inner side wall of the vertical plate 2, sliding rods 18 arranged between every two support plates 17, a pressing plate 19 with two ends respectively sleeved with the sliding rods 18, and a plurality of pressing rods 20 uniformly arranged on the lower surface of the pressing plate 19; the bottom end of the pressure lever 20 is inserted into the pharmaceutical die hole 5, and the sliding rod 18 is sleeved with a return spring 21 positioned below the pressure plate 19; the working process of the stamping assembly is as follows: the rotation axis 3 drives eccentric casting die 4 and rotates, and then eccentric casting die 4 suppresses clamp plate 19 downwards and makes it descend along slide bar 18 to the powder compaction piece is become inside getting into pharmacy nib 5 to the depression bar 20 bottom, and after eccentric casting die 4 and clamp plate 19 separated, reset spring 21 made the clamp plate 19 jack-up upwards and then made the depression bar 20 shift out from pharmacy nib 5 is inside, accomplished the work that the powder pressed into piece.

Specifically, eccentric casting die 4 sets up with drive plate 8 perpendicularly, medicine frame 6 is in one side of pharmacy nib 5 when making eccentric casting die 4 drive depression bar 20 and pharmacy nib 5 cooperation work, clamp plate 19 top is provided with the arc protection shield 22 that corresponds with eccentric casting die 4, the process that makes eccentric casting die 4 suppress clamp plate 19 downwards is more smooth and easy, every depression bar 20 is located eccentric casting die 4 directly below respectively, make every depression bar 20 top all set up an eccentric casting die 4, make different depression bars 20 during operation keep equal pressure, it leads to having the difference to reduce clamp plate 19 self structural deformation to lead to between different depression bars 20, the condition that the tradition only set up the eccentric wheel in the middle part of clamp plate 19 and exist because the longer structural deformation of clamp plate 19 leads to having the error to the dynamics of pushing down between different depression bars 20 has been solved.

Specifically, 2 tops of a riser are provided with

L type branch

23, and 7 tops of connecting plate cup joint with the 23 tip of L type branch, have realized that connecting plate 7 rotates and has set up in the purpose at 2 tops of a riser.

Specifically, sliding sleeves 24 which are sleeved with the rod body of the curved rod 11 are arranged on the upper surface of the base 1 in front of and behind the medicine frame 6; the curved bar 11 is of a square structure, the vertical plate 2 is located inside the curved bar 11, two ends of the curved bar 11 are fixedly connected with the medicine frame 6, and the curved bar 11 can slide inside the sliding sleeve 24 to enable the curved bar 11 to drive the medicine frame 6 to move on the surface of the base 1.

Specifically, collecting grooves 25 are formed in the upper surface of the base 1 in front of and behind the medicine frame 6, and a medicine discharging notch 26 is formed in the center of each collecting groove 25; the medicine frame 6 can push the tablet which is pressed and ejected out into the collecting groove 25, and the tablet in the collecting groove 25 can be conveniently discharged through the medicine discharging notch 26.

The working principle is as follows: when the utility model is used, the rotary shaft 3 is fixedly connected with the output end of the speed reducing motor of the tablet press, the speed reducing motor of the tablet press is started after the medicine powder is poured into the medicine frame 6, the rotary shaft 3 drives the eccentric pressing part 4 and the driving plate 8 to rotate, the driving plate 8 rotates to drive the connecting plate 7 to rotate through the first sliding column 9 and the first sliding column 10, the curved rod 11 is driven to move in the sliding sleeve 24 through the second sliding column 701 and the second sliding column 12, thereby driving the medicine frame 6 and the internal medicine powder to move on the surface of the base 1, when the medicine frame 6 passes through the medicine mold hole 5, the internal medicine powder enters the medicine mold hole 5 to be filled, when the convex part of the eccentric pressing part 4 contacts with the pressing plate 19, the pressing plate 19 is pressed by the pressing plate 19 through the pressing rod 20 to press the medicine powder tablet in the medicine mold hole 5, because the driving plate 8 is vertically arranged with the eccentric wheel 4, the medicine powder in the medicine frame 6 can move the medicine powder filled in the medicine mold hole 5 to one side, the eccentric pressing piece 4 drives a pressing rod 20 to compact medicinal powder into tablets, the pressing plate 19 is jacked up under the action of a reset spring 21 after the eccentric pressing piece 4 is separated from the pressing plate 19, a jacking device 16 is started to jack up a square bottom block 13 and an ejector rod 14 so as to eject the tablets in the pharmaceutical die hole 5, the jacking device 16 drives the square bottom block 13 and the ejector rod 14 to reset after jacking, the ejected tablets fall on the surface of the base 1 and are positioned on one side of a medicine frame 6, the medicine frame 6 is driven to move towards the upper part of the pharmaceutical die hole 5 through structures such as a driving plate 8, a connecting plate 7, a curved rod 11 and the like along with the continuous rotation of a rotating shaft 3, the medicine frame 6 is filled with the pharmaceutical die hole 5 again after the medicine frame 6 moves to the upper part of the pharmaceutical die hole 5, meanwhile, the outer wall of the medicine frame 6 pushes the tablets to move on the surface of the base 1 to push the tablets into a collecting tank 25, meanwhile, a convex part at the other end of the eccentric pressing piece 4 extrudes the pressing plate 19 to continuously perform medicinal powder pressing work, a plurality of eccentric pressing pieces 4 are uniformly arranged on the rotating shaft 3, and the eccentric pressing pieces 4 are positioned right above the pressing rods 20, so that the same degree of pressure is kept when each pressing rod 20 presses the medicinal powder, the pressure of the pressing rods 20 of the tablet pressing machine is ensured to be constant, the structural compactness of tablets is ensured to be the same, and the production quality of the tablets is ensured; set up connecting plate 7 and drive plate 8 isotructure in rotation axis 3 one end and can make tablet press can carry out the benefit medicine in succession and preforming work with depression bar 20 cooperateing, jacking device 16 and ejector pin 14 through base 1 bottom setting can be ejecting with the tablet from the pharmacy downthehole in the time quantum of benefit medicine and preforming to the tablet that will fall on base 1 surface through the removal of medicine frame 6 is pushed to one side, makes the press realize continuous operation, conveniently collects the tablet.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Tablet press pressure constant mechanism, including base (1), its characterized in that: the medicine box is characterized in that vertical plates (2) are symmetrically arranged at two ends of the upper surface of the base (1), a rotating shaft (3) is rotatably arranged between the vertical plates (2) close to the top end, a plurality of eccentric wheel pressing parts (4) are uniformly arranged on the rotating shaft (3), a punching assembly located below the eccentric wheel pressing parts (4) is arranged between the two vertical plates (2), a plurality of medicine preparing die holes (5) are formed in the upper surface of the base (1) and located right below the punching assembly, medicine frames (6) located on the outer sides of the medicine preparing die holes (5) are arranged on the upper surface of the base (1) in a fit mode, and a driving mechanism used for driving the medicine frames (6) to move along the upper surface of the base (1) is arranged at one end of the rotating shaft (3);

the driving mechanism comprises a connecting plate (7) rotatably arranged at the top of a vertical plate (2), a driving plate (8) arranged at one end of the rotating shaft (3), a first sliding column (9) arranged on the outer side of the end part of the driving plate (8), a first sliding chute (10) arranged on the connecting plate (7) and connected with the first sliding column (9) in a sliding manner, and a second sliding chute (701) arranged on the end part of the connecting plate (7); both ends of the medicine frame (6) are fixedly provided with bent rods (11) which are connected with the base (1) in a sliding manner, and rod bodies on the outer sides of the bent rods (11) are provided with second sliding columns (12) which are connected with the second sliding grooves (701) in a sliding manner;

the ejection mechanism is arranged below the base (1).

2. The tablet press pressure constancy mechanism according to claim 1, characterized in that: the ejection mechanism comprises a square bottom block (13), ejector rods (14) evenly arranged on the upper surface of the square bottom block (13) and inserted into the pharmaceutical die holes (5), L-shaped ear plates (15) symmetrically arranged on two sides of the square bottom block (13) and jacking devices (16) arranged at the bottoms of the L-shaped ear plates (15).

3. The tablet press pressure constancy mechanism according to claim 1, characterized in that: the stamping component comprises support plates (17) symmetrically arranged in the middle of the inner side wall of the vertical plate (2), sliding rods (18) arranged between every two support plates (17), a pressing plate (19) with two ends respectively sleeved with the sliding rods (18), and a plurality of pressing rods (20) uniformly arranged on the lower surface of the pressing plate (19); the bottom end of the pressing rod (20) is connected with the pharmaceutical die hole (5) in an inserting mode, and the sliding rod (18) is sleeved with a return spring (21) located below the pressing plate (19).

4. The tablet press pressure constancy mechanism according to claim 3, characterized in that: the eccentric wheel pressing piece (4) is perpendicular to the driving plate (8), an arc-shaped protection plate (22) corresponding to the eccentric wheel pressing piece (4) is arranged at the top of the pressing plate (19), and each pressing rod (20) is located right below the eccentric wheel pressing piece (4).

5. The tablet press pressure constancy mechanism according to claim 1, characterized in that: one riser (2) top is provided with L type branch (23), connecting plate (7) top cup joint with L type branch (23) tip.

6. The tablet press pressure constancy mechanism according to claim 1, characterized in that: the upper surface of the base (1) is positioned in the front and the rear of the medicine frame (6) and is provided with a sliding sleeve (24) sleeved with the rod body of the curved rod (11).

7. The tablet press pressure constancy mechanism according to claim 1, characterized in that: collecting vat (25) have all been seted up to base (1) upper surface position in the place ahead and the rear of medicine frame (6), and collecting vat (25) center is provided with arranges medicine notch (26).