CN114801299B - Porous tablet stamping die and die on die - Google Patents
Porous tablet stamping die and die on dieInfo
- Publication number
- CN114801299B CN114801299B CN202210343786.1A CN202210343786A CN114801299B CN 114801299 B CN114801299 B CN 114801299B CN 202210343786 A CN202210343786 A CN 202210343786A CN 114801299 B CN114801299 B CN 114801299B
- Authority
- CN
- China
- Prior art keywords
- die
- punch
- stamping
- rod
- punching
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/02—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space
- B30B11/08—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a ram exerting pressure on the material in a moulding space co-operating with moulds carried by a turntable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/0082—Dust eliminating means; Mould or press ram cleaning means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
- B30B15/026—Mounting of dies, platens or press rams
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/32—Discharging presses
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
The invention relates to a die, in particular to a die for powder extrusion molding, which comprises a rotary table, wherein a group of upper dies, forming cavities and lower dies with one-to-one correspondence are respectively and circumferentially distributed at the upper, middle and lower positions of the rotary table along the rotary center, the upper dies comprise upper punching heads, the lower dies comprise lower punching heads, each upper die and each lower die complete one-time lifting and reciprocating movement when the rotary table rotates for one circle, the upper dies also comprise a discharging rod, and the lower dies also comprise a punching rod which is fixed on the rotary table and is movably arranged in the lower punching heads, so that the discharging rod can move in the upper punch, and can give way for the punching rod in extrusion molding, and can push out powder in the upper punch for discharging.
Description
Technical Field
The invention relates to the field of moulds, in particular to a forming mould for porous tablets (such as catalyst tablets).
Background
Catalyst tablets in order to obtain as large a specific surface area as possible, the catalyst tablets need to be made into a honeycomb-shaped porous structure, and other gas-producing tablets such as automobile safety airbags are also required to be made into a special-shaped porous structure due to special requirements in use. The conventional method is to make the lower punch and the punching rod into an integral structure, so that the lower punch and the punching rod are easily broken due to the fact that the punching rod is thin and blocked, and meanwhile, the manufacturing cost is relatively high. In addition, the conventional upper punch head is generally required to be provided with a yielding hole, and the punching rod is inserted during forming, powder is easily brought into the yielding hole of the upper punch head during production, and the punching rod is blocked when the powder is accumulated enough, so that the risk of breakage of the punching rod is further increased, and the punching head is required to be cleaned manually frequently and is very inconvenient to operate.
Disclosure of Invention
In order to solve the problems that a punching rod is easy to break and a punching head in a die is easy to block in the prior art, the invention provides a durable porous tablet punching die capable of automatically cleaning powder in the punching head, and the technical scheme adopted by the invention is as follows:
The utility model provides a porous tablet stamping die, includes the revolving platform on the revolving platform, well, down three positions have a set of position one-to-one's upper punch die, shaping chamber and lower punch die along the center of revolution circumference equipartition respectively, the upper punch die including last punch press head, lower punch die including lower punch press head, each upper punch die of revolving platform every round and lower punch die accomplish a lift reciprocating motion, when upper punch die move from the high position to the low position in the shaping intracavity gradually, and when upper punch die move from the low position to the high position in the shaping intracavity gradually break away from upper punch press head, lower punch press head be in the shaping intracavity all the time, and when lower punch die is in the high position lower punch press head can stretch out the shaping chamber up end, upper punch die still including the blanking rod, the blanking rod activity set up in the upper punch press head and can realize reciprocating motion at the revolving platform during operation, the blanking rod when upper punch die in the high position outside the lower punch press head, the blanking rod in the lower punch press head in the low position in the blanking rod end when the lower punch press head is in the fixed position in the punch press head.
Further, the rotary table comprises an upright post, an upper guide rail, a lower guide rail and a rotary table, wherein the upper punching die, the forming cavity and the lower punching die are respectively arranged on the upper part, the middle part and the lower part of the rotary table, and the upper guide rail and the lower guide rail for driving the upper punching die and the lower punching die to do lifting movement are respectively fixed at the upper end and the lower end of the upright post.
Further, one end of the upper punch die is lapped on the upper guide rail and falls down by self weight, and the upper end face of the bottom of the lower punch die is contacted with the lower guide rail and falls down by being pulled back by the lower guide rail.
Furthermore, the upper guide rail is an inclined guide rail and is arranged at the inner side of each upper stamping die, the upper stamping die is provided with a step surface which can be lapped on the upper guide rail, the lower guide rail is a T-shaped groove, and the lower stamping die is provided with a T-shaped head which is arranged in the T-shaped groove.
Furthermore, a group of jackscrews corresponding to the positions of the upper stamping dies are arranged on the rotary table, and the jackscrews can be propped against the outer side of the upper stamping dies to ensure that the step surface is always in lap joint with the upper guide rail.
Further, the automatic punching machine further comprises an upper pressing wheel, a lower pressing wheel and a jacking wheel, wherein the upper pressing wheel and the lower pressing wheel are respectively positioned on one side of the tail ends of the upper punching die and the lower punching die and are fixed at the lowest station of the upper punching die, and the jacking wheel is positioned on one side of the tail end of the lower punching die and is positioned at the highest station of the lower punching die.
Further, the upper punch die further comprises an upper punch rod and a limiting pin, a pushing seat for installing the discharging rod is movably arranged in the upper punch rod, the upper punch head is installed at the end part of the upper punch rod, strip-shaped holes are formed in the upper punch rod and the pushing seat, the limiting pin is fixed on the rotary table and inserted into the strip-shaped holes in the upper punch rod and the pushing seat, the lower punch die further comprises a lower punch rod and a positioning pin, a punching seat for installing the punching rod is movably arranged in the lower punch rod, strip-shaped holes are formed in the lower punch rod, and the positioning pin is fixed on the rotary table and penetrates through the strip-shaped holes to fix the punching seat.
The utility model provides a punch die on porous tablet, includes punch stem, upper punch head, row's material pole and pushing away the material seat, the punch stem install in the punch stem tip, the material seat tip is pushed away to the material pole of arranging install, the material seat activity of pushing away set up in the punch stem, the material pole activity of arranging set up in the punch stem and pushing away all be equipped with the bar hole on upper punch stem and pushing away the material seat the bar downthehole spacer pin that is provided with, work as the punch stem to keeping away from when the spacer pin direction removes in the punch stem can retract the punch stem, work as the punch stem to be close to when the spacer pin direction removes in the row's material pole can stretch out the punch stem outside.
The die with the structure has the advantages that the punching rod can extend into the upper punch in forming, better supporting effect is provided through the upper punch, breakage of the punching rod is avoided, meanwhile, the discharging rod can discharge redundant powder in the upper punch, enough space is provided for the punching rod, powder accumulation is avoided, the punching rod is prevented from being inserted into the upper punch, and safety and reliability in operation of the punching rod are further protected.
Drawings
FIG. 1 is a schematic diagram of a mold structure according to the present invention;
FIG. 2 is a cross-sectional view of a mold according to the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a partially enlarged view at B in fig. 2.
Detailed Description
The invention provides a porous tablet stamping die, which is used for pressing powder into a porous tablet through the die, the die structure of the die is further described in detail below with reference to drawings and specific embodiments, the die shown in fig. 1 comprises a rotary table, the rotary table is divided into an upper section, a middle section and a lower section, a group of mounting holes are respectively distributed on the outer rings of the upper section, the middle section and the lower section of the rotary table along the circumferential direction of the rotary center of the rotary table, an upper die 1 is arranged in the mounting hole of the upper section of the rotary table, a forming cavity 2 is arranged in the mounting hole of the middle section of the rotary table, a lower die 3 is arranged in the mounting hole of the lower section of the rotary table, the positions of the upper die 1, the forming cavity 2 and the lower die 3 are in one-to-one correspondence, the rotary table can drive the upper die 1, the forming cavity 2 and the lower die 3 to synchronously move when rotating, and the positional relationship of the upper die 1, the forming cavity 2 and the lower die 3 is always kept corresponding in the rotating process, wherein the upper die 1 and the lower die 3 can do reciprocating motion along the axial direction of the rotating shaft in the rotating process of the rotating table, when the rotating table rotates for one circle, the upper die 1 and the lower die 3 complete one-time reciprocating motion, as shown in fig. 2 and 3, an upper punch head 1-1 is arranged on the upper die 1, as shown in fig. 2 and 3, a lower punch head 3-1 is arranged on the lower die 3, wherein the lower punch head 3-1 is always in the forming cavity 2 to achieve reciprocating motion, the upper punch head 1-1 is gradually inserted into the forming cavity 2 from outside the forming cavity 2 when the upper die 1 moves from a high position to a low position, and the upper punch head 1-1 is gradually separated from the forming cavity 2 when the upper die 1 moves from the low position to the high position, when the upper punch 1 is at the lowest position, the lower punch 3 is matched to finish extrusion molding of powder in the molding cavity 2 to prepare tablets, the upper punch 1-1 stretches into the molding cavity 2 to the greatest depth, the lower punch 3 also comprises a punching rod, the punching rod 3-2 in the lower punch 3 stretches into the upper punch 1-1 along with the upper punch 1-1, a hole is formed in the middle of the tablets in the extrusion molding process, in the molding process, as two ends of the punching rod 3-2 are respectively positioned in the lower punch 3-1 and the upper punch 1-1 and protected by supporting, the punching rod 3-2 is prevented from being easily bent and damaged, after the molding is finished, the upper punch 1 gradually lifts along with the rotation of the rotary table to finally separate the upper punch 1-1 from the molding cavity 2, the upper punch 1-2 also comprises a discharging rod 1-2, the upper punch 1-1 is movably arranged in the upper punch 1-1, when the upper punch 1 is at the low position, a limit pin 1-4 is positioned in the lower punch 1-1, the lower punch 1-2 is enabled to be in a limit position, and the upper punch 1-1 is prevented from being pushed out of the upper punch 1-1, and the upper punch 1-1 is prevented from being stretched out of the upper punch 1-1 and the upper punch 1-2 from being in the lower punch 1. And the lower punch 3 continuously rises along with the lower punch 3 in the process that the upper punch 1-1 is separated from the forming cavity 2, so that the lower punch 3-1 extends out of the upper end surface of the forming cavity 2 to eject the formed tablet out of the forming cavity 2 to complete the demolding process.
In the embodiment shown in fig. 1, the turntable comprises a stand column 4 and a turntable 7, the turntable 7 is movably arranged on the stand column 4 and can realize rotation, the upper die 1, the forming cavity 2 and the lower die 3 are respectively arranged on the turntable 7, in order to realize that the upper die 1 and the lower die 3 can reciprocate when the turntable rotates, an upper guide rail 5 and a lower guide rail 6 are respectively fixed at two ends of the stand column 4, the upper die 1 is matched with the upper guide rail 5 to realize lifting action, the lower die 3 is matched with the lower guide rail 6 to realize lifting action, the upper guide rail 5 is a bevel guide rail which is arranged in a cam mode, the upper die 1 is provided with a step surface 1-3, the step surface 1-3 of the upper die 1 is lapped on the upper guide rail 5 to realize reciprocating motion along with the rotation of the turntable 7 on the upper guide rail 5, and in order to ensure that the step surface 1-3 is always contacted with the upper guide rail 5 and is not separated, a top wire 11 is propped against the outer side of the upper die 1, the lower guide rail 6 is arranged as a T-shaped groove in a cam mode, and a T-shaped head 3-7 is arranged on the lower guide rail 3 is arranged on the lower guide rail 6 to realize reciprocating motion along with the rotation of the lower die 3 along with the rotation of the upper die 7. In this embodiment, the upper punch 1 mainly falls by self weight, while the lower punch 3 mainly falls by being pulled back by the lower guide rail 6, and of course, when the upper guide rail 5 and the lower guide rail 6 are arranged as guide grooves, the upper punch 1 and the lower punch 3 can realize reciprocating motion of a specified route through the limit guide of the upper guide rail 5 and the lower guide rail 6. In this embodiment, since the upper punch head 1-1 and the lower punch head 3-1 are positioned in the molding cavity 2 to press the powder to be compression molded when a sufficient pressing force is required, and the upper rail 5 and the lower rail 6 in this embodiment do not have a stopper function to provide a sufficient pressing force, the upper pressing wheel 8 and the lower pressing wheel 9 are fixedly provided in the press mold, and the upper pressing wheel 8 and the lower pressing wheel 9 are respectively fixedly provided at the trailing end sides of the upper punch head 1 and the lower punch head 3, and a pressing force is provided to the upper punch head 1-1 and the lower punch head 3-1 respectively to allow a sufficient pressing force to be applied to the powder to compact the powder to form a tablet in the molding cavity 2, the upper pressing wheel 8 and the lower pressing wheel 9 are provided at positions corresponding to the lowest positions of the upper punch head 1. In this embodiment, since the lower punch 3 cannot be guided upward by the lower guide rail 6, in order to achieve demolding of the pressed tablet, a ejector wheel 10 is further provided in the mold, the ejector wheel 10 is provided at the tail end of the lower punch 3 and at the highest position of the lower punch 3, the ejector wheel 10 ejects the lower punch 3 so that the end face of the lower punch 3-1 extends completely out of the upper end face of the molding cavity to push out the tablet in the molding cavity 2 from the molding cavity 2 to complete demolding, and the lower punch 3 after demolding is pulled back to the lower position by the lower guide rail 6.
As shown in FIG. 3, the upper punch 1 comprises an upper punch rod 1-7, an upper punch head 1-1, a pushing seat 1-5, a discharging rod 1-2 and a limiting pin 1-4, wherein the upper punch head 1-1 is arranged at the end part of the upper punch rod 1-7, the discharging rod 1-2 is arranged on the pushing seat 1-5 and is movably arranged in the upper punch head 1-1, strip-shaped holes 1-6 are respectively arranged on the upper punch rod 1-7 and the pushing seat 1-5, the limiting pin 1-4 passes through the upper punch rod 1-7 and the strip-shaped holes 1-6 on the pushing seat 1-5 to be fixed on a rotary table 7, when the upper punch rod 1-7 is guided to move downwards to a high position by an upper guide rail 5, the limiting pin 1-4 can limit the pushing seat 1-5 to continue to move upwards, so that the discharging rod 1-2 is driven to extend out of the end part of the upper punch head, redundant materials entering the upper punch head 1-1 are discharged, the diameter of the strip-shaped holes 1-5 is smaller than that of the upper punch head 1-1, the strip-shaped holes 1-6 are formed in the inner diameter of the upper punch head 1-1 and the upper punch rod 1-2 can not be matched with the inner diameter of the upper punch rod 1-2 when the upper punch rod 1-2 is more than the inner diameter of the upper punch rod 1-3, and the redundant materials cannot be prevented from being formed and being concentrated in the upper punch rod 1-2 when the upper punch rod is extended into the upper punch rod 1-2, when in forming (the upper die is in a low position), the limiting pin is not used for limiting the lower end of the upper strip-shaped hole 1-6 of the pushing seat 1-5 any more, but the lower pushing seat 1-5 is lifted under the limiting action of the limiting pin 1-4 to enable the discharging rod 1-2 to retract into the upper punch head, so that the punching rod 3-2 is bent to enable the punching rod to be inserted into the upper punch head 1-1.
The lower punch as shown in fig. 4 comprises a lower punch 3-3, a lower punch 3-1, a punch holder 3-5, a punch rod 3-2 and a positioning pin 3-4, wherein the lower punch 3-3 is movably arranged in a mounting hole of a rotary table 7, the lower punch 3-1 is fixed at the end part of the lower punch 3-3, a strip hole 3-6 is arranged on the lower punch 3-3, the punch holder 3-5 is movably arranged in the lower punch 3-3 relative to the lower punch 3-3, the positioning pin 3-4 passes through the strip hole 3-6 to fixedly connect the punch holder 3-5 with the rotary table 7, the punch rod 3-2 is fixed on the punch holder 3-5, at this time, the punch rod 3-2 can reciprocate under the action of a lower guide rail 6, a lower pressing wheel 9 and a jacking wheel 10, the height of the punch rod 3-2 is unchanged, but the lower punch 3-2 is inserted into the upper punch 1-1 in the process of the lower punch 3, and the jacking wheel 3-2 drives the punch 3-5 to move out of the tablet by the lower punch 3-3 to form a die cavity after the lower punch 3-1 is driven by the jacking wheel 3-3.
Claims (6)
1. A porous tablet stamping die comprises a rotary table, wherein a group of upper stamping dies (1), forming cavities (2) and lower stamping dies (3) with positions corresponding to each other are respectively and circumferentially distributed at the upper, middle and lower positions of the rotary table along the rotary center, the upper stamping dies (1) comprise upper stamping heads (1-1), the lower stamping dies (3) comprise lower stamping heads (3-1), the porous tablet stamping die is characterized in that each upper stamping die (1) and each lower stamping die (3) complete one-time lifting reciprocating motion when the rotary table rotates for one circle, when the upper stamping dies (1) move from high position to low position, the upper stamping heads (1-1) are gradually inserted into forming cavities (2) from outside the forming cavities (2), when the upper stamping dies (1) move from low position to high position, the upper stamping heads (1-1) are gradually separated from the forming cavities (2), the lower stamping heads (3-1) are always positioned in the forming cavities (2), when the lower stamping dies (3) are positioned at high positions, the upper stamping heads (3-1) can extend out of the forming cavities (2), and when the upper stamping dies (1) are positioned at the high positions, the upper stamping dies (1) can be arranged in the upper stamping dies (1) and the upper stamping dies (1) can be arranged in the row of the forming cavities (2), when the upper punch die (1) is in a high position, the end part of the discharging rod (1-2) extends out of the lower punch head (3-1), when the upper punch die (1) is in a low position, the end part of the discharging rod (1-2) is retracted into the lower punch head (3-1), the lower punch die (3) further comprises a punching rod (3-2) which is fixed on a rotary table and is movably arranged in the lower punch head (3-1), when the upper punch die (1) is in the low position, the punching rod (3-2) can be inserted into the upper punch head (1-1), and the diameter of the punching rod (3-2) is smaller than that of the upper punch head (1-1), and the diameter of the discharging rod (1-2) is matched with the inner diameter of an opening of the upper punch head (1-1);
The rotary table comprises an upright post (4), an upper guide rail (5), a lower guide rail (6) and a rotary table (7), wherein the upper punching die (1), the forming cavity (2) and the lower punching die (3) are respectively arranged on the upper part, the middle part and the lower part of the rotary table (7), and the upper guide rail (5) and the lower guide rail (6) which drive the upper punching die (1) and the lower punching die (3) to do lifting movement are respectively fixed at the upper end and the lower end of the upright post (4);
The upper punching die (1) further comprises an upper punching rod (1-7) and a limiting pin (1-4), a pushing seat (1-5) for installing the discharging rod (1-2) is movably arranged in the upper punching rod (1-7), the upper punching head (1-1) is installed at the end part of the upper punching rod (1-7), strip-shaped holes (1-6) are formed in the upper punching rod (1-7) and the pushing seat (1-5), and the limiting pin (1-4) is fixed on the rotary table (7) and is inserted into the strip-shaped holes (1-6) in the upper punching rod (1-7) and the pushing seat (1-5).
2. A porous tablet stamping die as described in claim 1, wherein one end of the upper die (1) is lapped on the upper guide rail (5) and falls down by self weight, and the upper end surface of the bottom of the lower die (3) is contacted with the lower guide rail (6) and falls down by being pulled back by the lower guide rail (6).
3. A porous tablet stamping die according to claim 2 is characterized in that the upper guide rail (5) is an inclined guide rail and is arranged on the inner side of each upper stamping die (1), the upper stamping die (1) is provided with a step surface (1-3) which can be lapped on the upper guide rail (5), the lower guide rail (6) is a T-shaped groove, and the lower stamping die (3) is provided with a T-shaped head (3-7) which is arranged in the T-shaped groove.
4. A porous tablet stamping die as claimed in claim 3, characterized in that a group of jackscrews (11) corresponding to the positions of the upper stamping dies (1) are arranged on the rotary table (7), and the jackscrews (11) can be propped against the outer side of the upper stamping dies (1) to ensure that the step surfaces (1-3) are always in lap joint with the upper guide rail (5).
5. A porous tablet stamping die as described in any one of claims 1 to 4, further comprising an upper pressing wheel (8), a lower pressing wheel (9) and a material ejection wheel (10), wherein the upper pressing wheel (8) and the lower pressing wheel (9) are respectively positioned at one side of the tail ends of the upper stamping die (1) and the lower stamping die (3) and fixed at the lowest station of the upper stamping die (1), and the material ejection wheel (10) is positioned at one side of the tail ends of the lower stamping die (3) and positioned at the highest station of the lower stamping die.
6. A porous tablet stamping die as described in claim 2, wherein the lower punch die (3) further comprises a lower punch rod (3-3) and a positioning pin (3-4), a punching seat (3-5) for installing the punch rod (3-2) is movably arranged in the lower punch rod (3-3), a strip hole (3-6) is formed in the lower punch rod (3-3), and the positioning pin (3-4) is fixed on the rotary table (7) and penetrates through the strip hole (3-6) to fix the punching seat (3-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343786.1A CN114801299B (en) | 2022-04-02 | 2022-04-02 | Porous tablet stamping die and die on die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210343786.1A CN114801299B (en) | 2022-04-02 | 2022-04-02 | Porous tablet stamping die and die on die |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114801299A CN114801299A (en) | 2022-07-29 |
| CN114801299B true CN114801299B (en) | 2025-08-01 |
Family
ID=82533313
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210343786.1A Active CN114801299B (en) | 2022-04-02 | 2022-04-02 | Porous tablet stamping die and die on die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114801299B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500693A (en) * | 2011-10-25 | 2012-06-20 | 昆山宝锦激光拼焊有限公司 | Inverted blanking die |
| CN104228118A (en) * | 2014-08-21 | 2014-12-24 | 北京国药龙立科技有限公司 | Porous die punching device and rotary tablet press based on porous die punching device |
| CN211334760U (en) * | 2019-12-18 | 2020-08-25 | 山东大学 | A rotating multi-punch tablet device |
| CN217415003U (en) * | 2022-04-02 | 2022-09-13 | 宝鸡忠诚制药机械有限责任公司 | Porous tablet stamping die and upper stamping die thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101570070B (en) * | 2008-04-30 | 2012-03-28 | 西北工业大学 | Self-guided equal channel extruding device and extruding method |
| CN204076895U (en) * | 2014-08-21 | 2015-01-07 | 北京国药龙立科技有限公司 | A kind of porcupine die device and the rotary tablet machine based on this porcupine die device |
| EP3332954B1 (en) * | 2016-11-25 | 2023-12-27 | Aida Engineering, Ltd. | Sliding frictional force generation mechanism and die cushion for press machine |
-
2022
- 2022-04-02 CN CN202210343786.1A patent/CN114801299B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102500693A (en) * | 2011-10-25 | 2012-06-20 | 昆山宝锦激光拼焊有限公司 | Inverted blanking die |
| CN104228118A (en) * | 2014-08-21 | 2014-12-24 | 北京国药龙立科技有限公司 | Porous die punching device and rotary tablet press based on porous die punching device |
| CN211334760U (en) * | 2019-12-18 | 2020-08-25 | 山东大学 | A rotating multi-punch tablet device |
| CN217415003U (en) * | 2022-04-02 | 2022-09-13 | 宝鸡忠诚制药机械有限责任公司 | Porous tablet stamping die and upper stamping die thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114801299A (en) | 2022-07-29 |
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