CN210553224U

CN210553224U - Quick clamping mechanism of mould that preforming machine was used

Info

Publication number: CN210553224U
Application number: CN201920658381.0U
Authority: CN
Inventors: 赵正印; 闫润瑛; 李明
Original assignee: Xuchang University
Current assignee: Xuchang University
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-05-19
Anticipated expiration: 2029-05-08

Abstract

The utility model relates to a tablet press technical field discloses a quick clamping mechanism of mould that preforming machine was used, including well mould, the inboard sliding connection on the top of well mould has the upper impact rod, and the bottom fixedly connected with buffer base of well mould, the common sliding connection of the lower extreme of well mould and buffer base's inboard has the lower impact rod. The utility model discloses a dop embedding is in the crank connecting rod of tablet press, make and go up the jumper bar and link together with crank connecting rod, through spring post extrusion crank connecting rod, make and go up the jumper bar and be in the same place with crank connecting rod firmly fixed, when need change the jumper bar, inside side extrusion spring post, can pull down the jumper bar, otherwise, the jumper bar on the clamping then can be fast, through last chuck extrusion spring, make the inside wall of spacing ring chuck slide steadily under, thereby cushion the centering die when the punching press, through the removal orbit of mould in the guide pillar control, thereby can make the well mould remain stable when the punching press, the off-the-shelf quality of punching press has been improved.

Description

Quick clamping mechanism of mould that preforming machine was used

Technical Field

The utility model relates to a tablet press technical field specifically is a quick clamping mechanism of mould that preforming machine was used.

Background

The tablet is the most common dosage form in the medicinal preparation and is mainly formed by punching of a tablet machine, the working principle of the tablet machine is that an upper punch rod is driven to press downwards through a crank connecting rod, raw materials are pressed in a middle die to form the tablet, and the tablet is ejected out of the middle die through the lower punch rod, so that the die is an indispensable accessory on the tablet machine.

When different shapes of tablets are pressed, different dies need to be replaced, but the replacement of the dies of the tablet press in the current market is very inconvenient, time-consuming and labor-consuming, and the motion precision of the middle die is not high during punching, so that the pressed tablets are often irregular in shape. Therefore, the person skilled in the art provides a mold quick clamping mechanism for a tablet press, so as to solve the problems mentioned in the background art.

Disclosure of Invention

An object of the utility model is to provide a quick clamping machine of mould that preforming machine was used constructs to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a die quick clamping mechanism for a tablet press comprises a middle die, wherein the inner side of the top end of the middle die is connected with an upper buffer rod in a sliding mode, the bottom end of the middle die is fixedly connected with a buffer base, the lower ends of the inner sides of the middle die and the buffer base are connected with a lower buffer rod in a sliding mode together, and the middle die and the lower buffer rod are identical in structure;

the upper punch rod comprises a main rod, a limiting block is fixedly connected to the top end of the main rod, a pressing head is fixedly connected to the bottom end of the main rod, a clamping head is fixedly connected to the top end of the limiting block, and a set of spring columns are embedded into the front side and the rear side of the clamping head.

As a further aspect of the present invention: the buffer base comprises a chassis, a punched hole is formed in the middle of the top end of the chassis, the top end of the chassis is annularly provided with at least four buffer structures close to the outer side of the punched hole, and a group of guide pillars are arranged between the buffer structures on the top end of the chassis.

As a further aspect of the present invention: the top end of the buffer structure is fixedly connected with the bottom end of the middle die, the guide post is embedded into the inner side of the bottom end of the middle die, and the guide post is connected with the middle die in a sliding mode.

As a further aspect of the present invention: buffer structure includes chuck down, the inside wall sliding connection of chuck has the spacing ring down, and the inboard bottom of chuck is provided with the spring down, the top fixedly connected with of spacing ring goes up the chuck, the outside of the last lower extreme of spring all is provided with a set of stationary blade.

As a further aspect of the present invention: the top end of the spring is fixedly connected with the top end of the inner side of the upper chuck through a fixing sheet, and the bottom end of the spring is fixedly connected with the bottom end of the inner side of the lower chuck through a fixing sheet.

As a further aspect of the present invention: annular spout has been seted up to the inside wall of lower chuck, the spacing ring passes through annular spout sliding connection.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the upper punch rod is connected with the crank connecting rod through the clamping head embedded in the crank connecting rod of the tablet press, the crank connecting rod is extruded through the spring column, the upper punch rod and the crank connecting rod are firmly fixed together, when the upper punch rod needs to be replaced, the spring column is extruded to the inner side, the upper punch rod can be detached, otherwise, the upper punch rod can be rapidly clamped, and the tablet press is convenient and practical.

2. Through last chuck extrusion spring, make the inside wall of spacing ring chuck slide steadily down to cushion the mould when the punching press, through the removal orbit of mould in the guide pillar control, thereby can make the mould remain stable when the punching press, improved the off-the-shelf quality of punching press.

Drawings

FIG. 1 is a schematic structural view of a mold quick clamping mechanism for a tablet press;

FIG. 2 is a schematic structural view of an upper punch in a die quick-clamping mechanism for a tablet press;

FIG. 3 is a schematic structural view of a buffer base in a mold quick clamping mechanism for a tablet press;

fig. 4 is an exploded view of a buffer structure in a die quick clamping mechanism for a sheeting machine.

In the figure: 1. a middle mold; 2. an upper punch; 21. a main rod; 22. a pressure head; 23. a limiting block; 24. a spring post; 25. clamping a head; 3. a buffer base; 31. a chassis; 32. a buffer structure; 321. a lower chuck; 322. a spring; 323. a fixing sheet; 324. a limiting ring; 325. an upper chuck; 33. a guide post; 34. punching; 4. and (4) a lower punch.

Detailed Description

Referring to fig. 1-4, in an embodiment of the present invention, a quick mold clamping mechanism for a tablet press includes a middle mold 1, an upper punch 2 is slidably connected to an inner side of a top end of the middle mold 1, a buffer base 3 is fixedly connected to a bottom end of the middle mold 1, a lower punch 4 is slidably connected to lower ends of inner sides of the middle mold 1 and the buffer base 3 together, and the middle mold 1 and the lower punch 4 have the same structure;

go up jumper bar 2 and include mobile jib 21, the top fixedly connected with stopper 23 of mobile jib 21, the bottom fixedly connected with pressure head 22 of mobile jib 21, the top fixedly connected with dop 25 of stopper 23, the front and back side of dop 25 all imbeds and is provided with a set of spring post 24.

In fig. 3: buffer base 3 includes chassis 31, and the middle part on the top of chassis 31 has seted up the 34 that punches a hole, and the top of chassis 31 is close to the outside of 34 that punches a hole and circularizes and is provided with and be no less than four buffer structure 32, and the top of chassis 31 is located and is provided with a set of guide pillar 33 between buffer structure 32 to can cushion well mould 1.

In fig. 1 and 3: the top of buffer structure 32 and the bottom fixed connection of well mould 1 to conveniently dismantle buffer structure 32 and well mould 1, guide pillar 33 embedding is in the inboard of the bottom of well mould 1, guide pillar 33 and well mould 1 sliding connection, thereby can control the orbit that well mould 1 removed.

In fig. 4: buffer structure 32 includes lower chuck 321, and the inside wall sliding connection of lower chuck 321 has spacing ring 324, and the bottom of the inboard of lower chuck 321 is provided with spring 322, and chuck 325 is gone up to the top fixedly connected with of spacing ring 324, and the outside of the last lower extreme of spring 322 all is provided with a set of stationary blade 323 to can make well mould 1 steadily remove.

In fig. 4: the top end of the spring 322 is fixedly connected to the top end of the inside of the upper chuck 325 by a fixing plate 323, and the bottom end of the spring 322 is fixedly connected to the bottom end of the inside of the lower chuck 321 by the fixing plate 323, so that the spring 322 is fixed to the upper chuck 325 and the lower chuck 321, respectively.

In fig. 4: annular sliding grooves are formed in the inner side wall of the lower chuck 321, the limiting ring 324 is embedded into the annular sliding grooves, and the limiting ring 324 is connected with the lower chuck 321 in a sliding mode through the annular sliding grooves, so that the moving distance of the upper chuck 325 can be controlled.

The utility model discloses a theory of operation: firstly, a clamping head 25 of an upper punch 2 is embedded into a crank connecting rod at the upper end of the tablet press, the upper punch 2 is connected with the crank connecting rod at the upper end of the tablet press, the inner wall of the crank connecting rod is pressed through a spring post 24, the upper punch 2 and the crank connecting rod are firmly fixed together, similarly, a lower punch 4 is arranged in the crank connecting rod at the lower end of the tablet press, when the upper punch 2 and the lower punch 4 need to be replaced, the spring post is pressed inwards, the upper punch 2 and the lower punch 4 can be detached, otherwise, the upper punch 2 and the lower punch 4 can be rapidly clamped, when tablets need to be pressed, firstly, raw materials are added into a middle die 1, then the crank connecting rod at the upper end of the tablet press drives the upper punch 2 to be pressed downwards, the raw materials are pressed into tablets in the middle die 1, then the upper punch 2 leaves the middle die 1, the lower punch 4 moves upwards, the tablets are ejected from the middle die, go up plunger 2 when the punching press, go up chuck 325 extrusion spring 322, make spacing ring 324 slide steadily at the inside wall of lower chuck 321 to cushion well mould 1, through the removal orbit of mould 1 in the guide pillar 33 control, thereby can make well mould 1 remain stable when the punching press, improved the off-the-shelf quality of punching press.

The above-mentioned, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A die quick clamping mechanism for a tabletting machine comprises a middle die (1), and is characterized in that the inner side of the top end of the middle die (1) is connected with an upper buffer rod (2) in a sliding manner, the bottom end of the middle die (1) is fixedly connected with a buffer base (3), the lower ends of the inner sides of the middle die (1) and the buffer base (3) are jointly connected with a lower buffer rod (4) in a sliding manner, and the middle die (1) and the lower buffer rod (4) have the same structure;

go up jumper bar (2) including mobile jib (21), the top fixedly connected with stopper (23) of mobile jib (21), and the bottom fixedly connected with pressure head (22) of mobile jib (21), the top fixedly connected with dop (25) of stopper (23), the front and back side of dop (25) all imbeds and is provided with a set of spring post (24).

2. The mold quick-clamping mechanism for the tabletting machine according to claim 1, wherein the buffer base (3) comprises a bottom plate (31), a punched hole (34) is formed in the middle of the top end of the bottom plate (31), at least four buffer structures (32) are annularly arranged on the top end of the bottom plate (31) close to the outer side of the punched hole (34), and a group of guide pillars (33) are arranged between the buffer structures (32) on the top end of the bottom plate (31).

3. The mold quick-clamping mechanism for the tabletting machine as claimed in claim 2, wherein the top end of the buffer structure (32) is fixedly connected with the bottom end of the middle mold (1), the guide pillar (33) is embedded inside the bottom end of the middle mold (1), and the guide pillar (33) is slidably connected with the middle mold (1).

4. The mold quick-clamping mechanism for the tabletting machine as claimed in claim 2, wherein the buffer structure (32) comprises a lower chuck (321), a limiting ring (324) is slidably connected to the inner side wall of the lower chuck (321), a spring (322) is arranged at the bottom end of the inner side of the lower chuck (321), an upper chuck (325) is fixedly connected to the top end of the limiting ring (324), and a set of fixing plates (323) are arranged at the outer sides of the upper and lower ends of the spring (322).

5. The mold quick-clamping mechanism for the tabletting machine as claimed in claim 4, wherein the top end of the spring (322) is fixedly connected with the top end of the inner side of the upper chuck (325) through a fixing plate (323), and the bottom end of the spring (322) is fixedly connected with the bottom end of the inner side of the lower chuck (321) through the fixing plate (323).

6. The mold quick-clamping mechanism for the tabletting machine according to claim 5, wherein the inner side wall of the lower chuck (321) is provided with an annular sliding groove, the limiting ring (324) is embedded in the annular sliding groove, and the limiting ring (324) is slidably connected with the lower chuck (321) through the annular sliding groove.