CN203611485U - Rotary tablet press - Google Patents
Rotary tablet press Download PDFInfo
- Publication number
- CN203611485U CN203611485U CN201320713958.6U CN201320713958U CN203611485U CN 203611485 U CN203611485 U CN 203611485U CN 201320713958 U CN201320713958 U CN 201320713958U CN 203611485 U CN203611485 U CN 203611485U
- Authority
- CN
- China
- Prior art keywords
- undershoot
- drawing block
- rotary tablet
- lower drawing
- tablet machine
- 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.)
- Expired - Lifetime
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 26
- 230000002093 peripheral effect Effects 0.000 claims description 11
- 239000000428 dust Substances 0.000 abstract description 19
- 238000000034 method Methods 0.000 abstract description 6
- 230000008569 process Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000014759 maintenance of location Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 9
- 239000000945 filler Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 230000003028 elevating effect Effects 0.000 description 5
- 238000004458 analytical method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000004088 simulation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Images
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Medical Preparation Storing Or Oral Administration Devices (AREA)
Abstract
The utility model discloses a rotary tablet press, comprising an engine base, a tablet outlet guide rail mechanism, a charging mechanism and a lower punch; the tablet outlet guide rail mechanism and the charging mechanism are fixedly connected to the engine base; the lower punch can rotate relative to the engine base and can perform lifting motion; the rotary tablet press also comprises a lower pull block; the lower pull block is fixedly connected onto the engine base and is positioned right below the charging mechanism or between the charging mechanism and the tablet outlet guide rail mechanism; the lower pull block is provided with a downward force applying surface; the force applying surface is downwards inclined along the rotary direction of the lower punch; the lower punch can move to a preset position along the force applying surface. Compared with the prior art, the lower pull block is additionally arranged, when the lower punch is rotated to the lower pull block, the force application surface applies a lower pull force to the lower punch, the lower punch overcomes the resistance of dust retention to move to the preset position along the force application surface and cleans partial or all dust retention at the same time, the resistance of the dust retention is reduced or eliminated, and the upward pressure applied to a padding by a padding space and the lower punch accords with the process demands, so the yield and the work efficiency are improved and the equipment maintenance cost is reduced.
Description
Technical field
The utility model relates to tablet press machine technical field, particularly a kind of rotary tablet machine.
Background technology
Tablet press machine is mainly used in the tablet processing of pharmaceuticals industry, is that particle media is pressed into circle, abnormity or the production equipment with word, symbol or figure tablet.
Rotary tablet machine comprises support, drive unit, turntable, charging mechanism, punch die, riser guide, slice guide rail mechanism and upper and lower pinch roller; Wherein, drive unit, charging mechanism, riser guide, slice guide rail mechanism and upper and lower pinch roller are fixedly connected on support, punch die comprises mould in upper punch, undershoot and tubular, middle mould is installed on turntable, the tail end of upper punch is by riser guide control, the upper end of undershoot is arranged in mould all the time, organizes punch die more and is distributed on turntable with respect to axis.
Filling body is inserted filler in the filling space being formed by middle mould and undershoot continuously, turntable rotates with respect to support under drive unit effect, and drive upper punch and undershoot synchronously to rotate and do axial elevating movement with it, in the time that punching turns to separately puck position up and down, under pinch roller effect, upper punch and undershoot are pressed into filler in middle mould in the tablet of reservation shape, then, under be punched under the effect of slice guide rail mechanism and rise until tablet is ejected to middle mould, finally under Action of Gravity Field, be reset to precalculated position.
Because undershoot and middle mould are clearance fit relationship, the dust that tablet press machine produces in the course of the work constantly falls into both fit clearances, in the time that laying dust reaches a certain amount of, undershoot is obstructed with respect to the elevating movement of middle mould, and make undershoot cannot drop to precalculated position, cause filling space deficiency, in addition, the impulsive force that also can cause undershoot to put on filler along with the increase of laying dust resistance reduces, and above-mentioned two point defects all can cause making because tablet is loose the problem that tablet yield rate is low.
In view of this, those skilled in the art urgently improve existing rotary tablet machine, cause the problem that yield rate is low to solve because of undershoot and middle intermode laying dust.
Utility model content
For above-mentioned defect, core object of the present utility model is, a kind of rotary tablet machine is provided, and causes the problem that yield rate is low to solve because of undershoot and middle intermode laying dust.
A kind of rotary tablet machine provided by the utility model, comprise support, slice guide rail mechanism, filling body and undershoot, described slice guide rail mechanism and described filling body are all fixedly connected on described support, described undershoot rotates and elevating movement with respect to described support, also comprise lower drawing block, described lower drawing block is fixedly connected on described support, and under described filling body or between described slice guide rail mechanism and described filling body, described lower drawing block has ventricumbent force surface, described force surface is downward-sloping along the rotation direction of described undershoot, described undershoot can move to precalculated position along described force surface.
Preferably, go up along its length, described force surface tilt angle alpha is with respect to the horizontal plane more than or equal to 7 ° and be less than or equal to 9 °.
Preferably, described tilt angle alpha equals 8.5 °.
Preferably, in broad ways, described force surface is inclined upwardly with respect to perpendicular, and described inclined-plane is more than or equal to 120 ° and be less than or equal to 130 ° with respect to the inclination angle beta of described perpendicular.
Preferably, described inclination angle beta equals 125 °.
Preferably, described undershoot comprises main body, and the lower end of described main body has peripheral flange, and described main body moves down along described force surface by described peripheral flange.
Preferably, described lower drawing block has the first cambered surface and the second cambered surface, described the first cambered surface and described the second cambered surface lay respectively at the above and below of described force surface, and described the first cambered surface is consistent with the rotary motion trace of described main body, and described the second cambered surface is consistent with the rotary motion trace of described peripheral flange.
Preferably, described lower drawing block and described support removably connect.
Preferably, described lower drawing block removably connects by bolt assembly and described support.
A kind of rotary tablet machine provided by the utility model, comprise support, slice guide rail mechanism, filling body and undershoot, wherein, slice guide rail mechanism and filling body are fixedly connected on support, undershoot is rotatable and elevating movement with respect to support, also comprise lower drawing block, this lower drawing block is fixedly connected on support, and under feeding mechanism or between feeding mechanism and slice guide rail mechanism, lower drawing block has ventricumbent force surface, this force surface is downward-sloping along the rotation direction of undershoot, and undershoot can move to precalculated position along force surface.
Compared with prior art, this programme is by setting up the lower drawing block of said structure, instantly when punching turns to lower drawing block place, lower drawing block applies lower pulling force by its force surface to undershoot, under be punched in and under this lower pulling force effect, overcome laying dust resistance and move to precalculated position along force surface, also removed part or all of laying dust simultaneously, reduce or eliminated laying dust resistance, thereby making filling space and undershoot put on filler to filler upwards pressure and all meets technological requirement, avoid the generation of the loose problem of tablet, improved yield rate.In addition, the reducing of laying dust resistance significantly reduces undershoot clamping stagnation number of times, thereby reduced artificial shutdown dedusting number of times, so reduced equipment maintenance cost, its operating efficiency is provided.
Accompanying drawing explanation
Fig. 1 shows the undershoot of rotary tablet machine that the utility model provides and the fit structure schematic diagram of lower drawing block;
Structural representation when Fig. 2 shows undershoot shown in Fig. 1 and moves to precalculated position with respect to lower drawing block;
The master that Fig. 3 shows lower drawing block shown in Fig. 1 looks schematic diagram;
Fig. 4 shows a left side for lower drawing block shown in Fig. 1 and looks schematic diagram;
Fig. 5 shows the schematic top plan view of lower drawing block shown in Fig. 1;
Fig. 6 shows the structural representation of undershoot shown in Fig. 1;
Fig. 7 shows undershoot shown in Fig. 1 along the force analysis schematic diagram in lower drawing block down sliding process.
Corresponding relation in Fig. 1 to Fig. 7 between Reference numeral and all parts title:
The specific embodiment
Core of the present utility model is, a kind of rotary tablet machine is provided, and to solve because of undershoot and middle intermode laying dust, and causes that tablet yield rate is low, maintenance of equipment cost is high and ineffective problem.
Now, in conjunction with Figure of description, the concrete structure of rotary tablet machine provided by the utility model is described.It should be noted that, related " precalculated position " refers to the position with respect to middle mould in filler stage undershoot herein, in the time that undershoot drops to precalculated position with respect to middle mould, meets the requirement to filling space size in tablet machining process.
Refer to Fig. 1 and Fig. 2, wherein, Fig. 1 shows the undershoot of rotary tablet machine that the utility model provides and the fit structure schematic diagram of lower drawing block, structural representation when Fig. 2 shows undershoot shown in Fig. 1 and moves to precalculated position with respect to lower drawing block.
As shown in Figure 1, the rotary tablet machine that this programme provides, comprise support (not shown), undershoot 1, slice guide rail mechanism (not shown) and filling body (not shown), wherein, slice guide rail mechanism and filling body are fixedly connected on support, undershoot 1 is rotatable and elevating movement with respect to support, also comprise lower drawing block 2, this lower drawing block 2 is fixedly connected on support by bolt is dismountable, and under filling body or between slice guide rail mechanism and filling body, lower drawing block 2 has ventricumbent force surface 21, this force surface 21 is downward-sloping along the rotation direction of undershoot 1, undershoot 1 can move to precalculated position along force surface 21, be undershoot 1 and lower drawing block 2 relative positions as shown in Figure 2.In order to understand better lower drawing block 2 ground concrete structures, please also refer to Fig. 3 to Fig. 5, wherein, the master that Fig. 3 shows lower drawing block shown in Fig. 1 looks schematic diagram, Fig. 4 shows a left side for lower drawing block shown in Fig. 1 and looks schematic diagram, and Fig. 5 shows the schematic top plan view of lower drawing block shown in Fig. 1.
Compared with prior art, this programme is by setting up the lower drawing block 2 of said structure, in the time that undershoot 1 turns to lower drawing block 2 place, undershoot 1 applies lower pulling force by its force surface 21 to undershoot 1, undershoot 1 overcomes laying dust resistance and moves to precalculated position along force surface 21 under this lower pulling force effect, also removed part or all of laying dust simultaneously, reduce or eliminated laying dust resistance, thereby making filling space and undershoot 1 put on filler to filler upwards pressure and all meets technological requirement, avoid the generation of the loose problem of tablet, improved yield rate; In addition, the reducing of laying dust resistance significantly reduces undershoot 1 clamping stagnation number of times, thereby reduced artificial shutdown dedusting number of times, so reduced equipment maintenance cost, improved its operating efficiency.
It should be noted that, as shown in Figure 6, the figure shows the structural representation of undershoot shown in Fig. 1, undershoot 1 comprises main body 11, and the lower end of this main body 11 has peripheral flange 12, and undershoot 1 slides into precalculated position by this peripheral flange 12 along force surface 21.Be appreciated that satisfied and undershoot 1 applied on the basis of lower pulling force function, processing and assembly technology requirement, undershoot 1 can be rolled and move to described precalculated position with respect to lower drawing block 2.
Further, as shown in Figure 7, the figure shows undershoot shown in Fig. 1 along the force analysis schematic diagram in lower drawing block down sliding process, undershoot 1 is with respect to being subject to self gravitation G, moment of torsion in lower drawing block 2 down sliding processes (in figure with the tangential force F of rotary motion trace
1represent), laying dust resistance F
2with lower pulling force F
3, from diagram, above-mentioned each power is decomposed into along the sliding force f on force surface 21 length directions
1, lower slip resistance f
2, and along the N that upwards pressure perpendicular to force surface 21
1with lower pulling force N
2.Wherein, α goes up force surface 21 angle of inclination with respect to the horizontal plane along its length.
Due to respect to other power tangential forces F
1larger, tangential force F
1with laying dust resistance F
2decompose rear along the N that upwards pressure perpendicular to force surface 21
1form frictional resistance, and N
1be SIN function relation with tilt angle alpha.Therefore, for reduce undershoot 1 the resistance of motion, reduce the wear extent of undershoot 1 and lower drawing block 2 mating surfaces, to extend the service life of lower drawing block 2, show through simulation analysis, tilt angle alpha is more than or equal to 7 ° and comparatively suitable while being less than or equal to 9 °.Further analogue simulation shows, in the time of tilt angle alpha=8.5 °, and the wear extent minimum of lower drawing block 2 and undershoot 1.
Be appreciated that and undershoot 1 applied on the basis of lower pulling force function meeting in rotation process, this tilt angle alpha also can adopt other to differ from the numerical value in this programme.
In addition, in force surface 21 broad ways in this programme, be inclined upwardly with respect to perpendicular, angle of inclination is that β is more than or equal to 120 ° and be less than or equal to 130 °, is preferably β=125 °.Show through simulation analysis, limit by said structure, the stress that can reduce force surface 21 and perpendicular junction on lower drawing block 2 is concentrated less, reduces lower drawing block breakage problem odds, thereby can extend the service life of lower drawing block 2.In addition, under normal circumstances, the upper surface of the peripheral flange 12 of undershoot 1 becomes obtuse angle setting with its center line, and this programme is in order to make force surface 21 suitable with the mating surface of undershoot 1, the concrete structure of force surface 21 is carried out to above-mentioned restriction, thereby also played the effect reducing costs.
Certainly, on the basis requiring at satisfied function, processing and the assembly technology that undershoot 1 is applied to lower pulling force, lower drawing block 2 in this programme angle of inclination with respect to the horizontal plane along its length, and/or can become other angle settings with respect to the angle of inclination of perpendicular in its broad ways.
Further, above-mentioned lower drawing block 2 also comprises the first cambered surface 22 and the second cambered surface 23, wherein, the first cambered surface 22 is positioned at the top of force surface 21, the first cambered surface 22 is consistent with the rotary motion trace of the main body 11 of undershoot 1, the second cambered surface 23 is positioned at the below of force surface 21, and the second cambered surface 22 is consistent with the rotary motion trace of the peripheral flange 12 of undershoot 1.
By the setting of the first cambered surface 22 and the second cambered surface 23, avoiding on the basis of undershoot 1 and lower drawing block 2 location conflicts, can guarantee that undershoot 1 is less with respect to both contact-making surface area change of lower drawing block 2 sliding processes, thereby can guarantee the stability that undershoot is rotated.Certainly, relatively move on the basis of matching relationship meeting both, the upper and lower of lower drawing block 2 force surfaces 21 can be other structures.
As previously mentioned, above-mentioned lower drawing block 2 is connected on support by bolt is dismountable, so that change and safeguard lower drawing block 2, and the mode that is bolted is simple in structure, cost is low.Be appreciated that and meeting on the basis of both annexations and assembly technology requirement, lower drawing block 2 dismountable being connected on support by other means, can also be directly welded on support.
The foregoing is only preferred embodiment of the present utility model, do not form the restriction to the utility model protection domain.Any any modification of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in claim protection domain of the present utility model.
Claims (9)
1. a rotary tablet machine, comprise support, slice guide rail mechanism, filling body and undershoot (1), described slice guide rail mechanism and described filling body are all fixedly connected on described support, described undershoot (1) rotates and moves up and down with respect to described support, it is characterized in that, also comprise lower drawing block (2), described lower drawing block (2) is fixedly connected on described support, and under described filling body or between described slice guide rail mechanism and described filling body, described lower drawing block (2) has ventricumbent force surface (21), described force surface (21) is downward-sloping along the rotation direction of described undershoot (1), described undershoot (1) can move to precalculated position along described force surface (21).
2. rotary tablet machine according to claim 1, is characterized in that, goes up along its length, and described force surface (21) tilt angle alpha is with respect to the horizontal plane more than or equal to 7 ° and be less than or equal to 9 °.
3. rotary tablet machine according to claim 2, is characterized in that, described tilt angle alpha equals 8.5 °.
4. according to the rotary tablet machine described in any one in claims 1 to 3, it is characterized in that, in broad ways, described force surface (21) is inclined upwardly with respect to perpendicular, and described inclined-plane is more than or equal to 120 ° and be less than or equal to 130 ° with respect to the inclination angle beta of described perpendicular.
5. rotary tablet machine according to claim 4, is characterized in that, described inclination angle beta equals 125 °.
6. according to the rotary tablet machine described in any one in claims 1 to 3, it is characterized in that, described undershoot (1) comprises main body (11), the lower end of described main body (11) has peripheral flange (12), and described undershoot (1) moves down along described force surface (21) by described peripheral flange (12).
7. rotary tablet machine according to claim 6, it is characterized in that, described lower drawing block (2) has the first cambered surface (22) and the second cambered surface (23), described the first cambered surface (22) and described the second cambered surface (23) lay respectively at the above and below of described force surface (21), described the first cambered surface (22) is consistent with the rotary motion trace of described main body (11), and described the second cambered surface (23) is consistent with the rotary motion trace of described peripheral flange (12).
8. according to the rotary tablet machine described in any one in claims 1 to 3, it is characterized in that, described lower drawing block (2) and described support removably connect.
9. rotary tablet machine according to claim 8, is characterized in that, described lower drawing block (2) removably connects by bolt assembly and described support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713958.6U CN203611485U (en) | 2013-11-13 | 2013-11-13 | Rotary tablet press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320713958.6U CN203611485U (en) | 2013-11-13 | 2013-11-13 | Rotary tablet press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203611485U true CN203611485U (en) | 2014-05-28 |
Family
ID=50764159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320713958.6U Expired - Lifetime CN203611485U (en) | 2013-11-13 | 2013-11-13 | Rotary tablet press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203611485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538276A (en) * | 2013-11-13 | 2014-01-29 | 中盐国本盐业有限公司 | Rotary tablet machine |
-
2013
- 2013-11-13 CN CN201320713958.6U patent/CN203611485U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103538276A (en) * | 2013-11-13 | 2014-01-29 | 中盐国本盐业有限公司 | Rotary tablet machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140528 |