CN1153106A - Batching device for tablets making compression machine - Google Patents
Batching device for tablets making compression machine Download PDFInfo
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- CN1153106A CN1153106A CN 95121726 CN95121726A CN1153106A CN 1153106 A CN1153106 A CN 1153106A CN 95121726 CN95121726 CN 95121726 CN 95121726 A CN95121726 A CN 95121726A CN 1153106 A CN1153106 A CN 1153106A
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- cam
- loading operation
- drift
- nib
- cam means
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Abstract
The device can be applied to compression machines including a turret, rotating around a vertical axis and fitted with a series of die holes aimed at being filled with powder or granular material; pairs of punches, upper and lower punches respectively, related to each die hole and guided slidably in the turret, engage the die holes with respective counterfacing working heads. The device features driving cam means that drive at least one of the punches and determine the reciprocal distance between the working heads of each pair of punches; the driving cam means move axially with respect to the turret so as to adjust this distance. Further cam means are provided for completition of guiding means with variable profile, which facilitates entering in the driving cam means. The cam menas are mechanically linked to each other, so as to change the profile in accordance with adjusting position of the driving cam means.
Description
The present invention relates to a kind of tablet press machine that is used to make tablet.
The known tablet press machine that is used to make tablet is made up of a rotating disk, and it is subjected to transmission to make this rotating disk rotate around its vertical axis, and is furnished with a nib plate or filler plate coaxially being positioned at the medium altitude place.
The nib of processing on this plate comprises several its axis along a hole of opening with the coaxial circumference regular interval of rotating disk, and these holes parallel with the axis of rotating disk.
Each nib has two relevant upper and lower drifts, is guided by the clamshell on the rotating disk respectively.Clamshell and each nib coaxial line.
The working head of every pair of drift toward each other, and the diameter of working head is made and can be allocated relevant nib from the above and below into.
As everyone knows, the procedural order of producing tablet by tablet press machine comprises: load powder or feed particulate material at a nib, the material quantity that volume is determined is inserted nib formation tablet, this tablet raw material of precommpression, and compress this tablet raw material subsequently at last, must form the tablet of a predetermined thickness.At last, this formed tablet is ejected nib.
When each nib carries out above-mentioned operation in proper order when the predetermined circular arc of a circle moves.This circular arc is usually along being extended by the full circle that rotating disk became.
Specifically, suitable driving mechanism is connected with drift, and specially to the guiding of the drift in clamshell axial stroke, its action and filler, batching and ejection station are consistent.
The tablet press machine of the pharmacy of above-mentioned pattern is published on No. the 4th, 943,227, the United States Patent (USP) that had by same applicant.
This machine comprise one that on rotating disk, process and with the cylindrical chamber of the axis coaxle of rotating disk, make this chamber communicate by some infeed grooves with nib, these infeed grooves are opened on the nib plate and preferably radially arrange with respect to the rotating disk axis.
Cylinder chamber is equipped with the raw material that nib to be transported to goes so that make tablet.
The centrifugal force that is produced by the rotation of rotating disk is feeded nib rapidly.In the practical operation, in case the working head of upper punch does not cover the opening portion of infeed groove, raw material just is pushed into nib inside.In the charging stage, the distance between the working head of two relative drifts has been determined the volume of nib, and the volume that has promptly formed tablet is determined.
By driving mechanism drift is moved, this driving structure comprises fixing cam path, and these cam paths form one with machine construction and are used for specially being meshed with roller, and roller is by the supporting rotationally on longitudinal axis of identical drift.
In the known tablet press machine that is used for pharmacy, be difficult to change as required the dosage of the raw material feeding that is used to make a monolithic tablet.For the distance between the working head that changes drift, must drive low punch and work, this action need is after the tablet that makes ejects, and whole group is changed the driving to drift in charging and burden process.
Obviously, this will cause very high structure and operating cost and limited production capacity.
The tablet press machine that a kind of improved pharmacy is used is published on the disclosures in Italian patent application that had by same Applicant BO93A000493 number.This machine comprises and has the right drift of live-rollers, and these paired live-rollers are fixed on the opposite end of a lateral pin, and is meshed with each cam path of offering in the machine fixed structure.
The lower wall height of the passage that above-mentioned roller both can limit from cam path also can be assembled to the cam path from the upper wall height of this passage.
The purpose of this invention is to provide and a kind ofly install the operation that can make the ingredient sector in the tablet press machine that pharmacy uses and obtain simply and rapidly regulating, such device all is achieved by a kind of effective and reliable technique scheme.
Above-mentioned purpose is to be achieved by the proportioner that a kind of pharmacy tablet press machine is used according to the present invention, and this device comprises: a rotary turnplate that is driven and rotate around vertical axis; A succession of nib of opening along the circle spacing of this rotating disk, powder or granular raw material are housed in this nib, each mould respectively has a pair of upper and lower drift, thereby the feature of described drift is each relative working head and is imported rotating disk smoothly described working head is engaged with nib; The driving mechanism that links to each other with drift is used to regulate the mutual edge distance mutually between the described working head, driving cam means is used for making a phase mutual edge distance of determining between the working head in the described drift at least in batching and stocking process, and this driving cam means can move axially so that regulate described distance with respect to rotating disk; In addition, constitute another driving mechanism by the loading operation cam, these cams are fitted to each other and have variable geometry and connecting path that lead to described driving cam means to determine, described loading operation cam each other mechanical connection so that change the profile of described connecting path according to the adjusting position of driving cam means.
Distinctive feature of the present invention specifically indicates in reference to the description of the drawings following, in the accompanying drawing:
Fig. 1 is the vertical view of the proportioner that reaches of the present invention;
The job step of this device when Fig. 2 illustrates in the plane the directions X by Fig. 1 that launches and looks;
Fig. 3 represents identical job step, but is in different batching adjusting positions;
Fig. 4 expresses along the view of the IV-IV section intercepting of Fig. 3;
Fig. 5 illustrates along the view of the V-V section intercepting of Fig. 2.
Referring to accompanying drawing, a rotary turnplate 1 of tablet press machine is subjected to drive and rotates by direction M around a vertical axis; Rotating disk 1 is equipped with a nib plate 2 with its coaxial line in known manner.
The axis of a plurality of nibs 3 on the nib plate 2 is parallel with the axis of rotating disk 3, and these nibs are along the arrangement that fitly is spaced apart from each other of a circumference with the rotating disk coaxial line.
Nib 3 is made up of the through hole of offering on the pipe fitting 4 that is connected to plate 2.
Upper and lower two drifts 5,6 are respectively arranged in each nib 3, and this imports corresponding clamshell from the upper and lower of nib 3 and with the nib coaxial line respectively to drift on rotating disk.
Every pair of drift is equipped with working head 5a respectively, 6a, they relative to each other and its diameter all less than the diameter of nib so that can be fitted in separately the nib 3.
In addition, nib 3 links with the tank circuit of supplying with supply powder to be compressed or feed particulate material.
The top 3a of nib is arranged and led to this transection slot with respect to the radial axis of rotating disk 1 ground, and the nib upper part diameter is widened by the part.
Roller is to 8 by pin 7 rotatably supports, thereby makes this pair of rollers 8 install to the opposite end of pin.Only show the roller 8 of upper punch 5 in the accompanying drawing.Roll in each driving cam groove that these rollers process in the fixed structure of machine.
These driving cam grooves work to drive guider to the some angle parts along rotating disk 1 circular path at least, so as axial stroke that pressure drift 5,6 is led and the working head 5a that defines every pair of drift, the phase mutual edge distance between the 6a.
Or rather, the proportioner of theme of the present invention is characterized as a kind of adjusting and a kind of driving cam 9 of batching, and it is to process on the inwall that is fixed on one section drum type portion 10 on the machine fixed structure.
Driving cam 9 can move vertically so that with respect to by the distance between the working head of the type adjustment drift 5,6 of pharmacy.
With respect to the moving direction of roller 8, the lower wall that advances (going into) oral area of cam 9 is levels, and its upper wall then is downward-sloping.
Therefore, make drift add and move, so that increase the raw material of introducing nib 3 with respect to determined position, the position of cam 9.
Obviously, if do not carry out this additional moving, roller 8 can with the mutually neat height of lower wall promptly, enter driving cam 9 at definite minimum altitude place, as seen in Figure 3.
With rotation direction M, the upstream of cam 9 has the first and second inside and outside loading operation cams 11,12 respectively, and they are by 13,14 formation of corresponding drum type part that are locked on the machine fixed structure.
The roller 8 that is respectively the inside and outside roller of drift 5 rolls on cam 11,12.Cam 11 and 12 binding site limit the tank circuit 15 with variable geometry, and this tank circuit makes a pre-reinforced cam 16 link with cam 9.Pre-reinforced cam 16 is to process on a round drum 17 that is fastened on the machine.
Outer displacement charging cam 12 is subjected to slidably leading along a pair of bar 18 in vertical direction, and this framework 19 that bar 18 is secured on the fixed structure of machine is supporting.
First section 12a of the lower wall of (displacement) cam 12 is inclined upwardly, second section 12b of this lower wall is straight, and two sections upper walls of (displacement) cam 12 are not straight, but are staggered in vertical direction, are middlely connected by the moving direction section of the being inclined upwardly 12c along with roller 8.
Tilting section 12c has determined to be applied to the axially movable minimum constructive height difference h of drift.
In lower and upper guide 20,21 on a pair of fixed structure that is fastened on machine respectively makes charging cams 11 one with the concentric circular path of rotating disk 1 on slide angledly.Suitable stop member 22 has limited the displacement of cam 11.
First section 11a of the upper wall of cam 11 is straight, and second section 11b of this upper wall is acclivitous.
Two sections of the lower wall of cam 11 is not straight, but vertically staggered and connected by a tilting section 11c, so that determine minimum constructive height difference h.
Be tilted to by one and tighten that to be affixed to drum 13 anterior and make cam 11 and 12 by mechanical caging with respect to the grinding tooth spare 23 of drum part 13 longitudinal extensions.
Grinding tooth spare 23 slides in a groove 24, and this groove 24 is opened on the surface of bulging part 14 facing to cam but also is inclined upwardly.
Like this, the angular movement of loading operation cam 11 has determined the vertical displacement of cam 12 by the inclined-plane of grinding tooth 23.
The operation of device now will be described, ejecting that operation with the tablet that has been shaped along with from its nib 3 is initial describing.
In this operation, the pre-reinforced cam 16 of outer roller 8 engagements of upper punch 5 makes this drift be in a fixing reference height with respect to the axial location of roller 8, and is bright as showing with Lo among Fig. 2.
Suppose the working head 5a of drift, 6a is at position P1, and this moment, the top 3a of nib 3 was blocked by the working head 5a of upper punch 5.
By loading operation cam 11,12 drift 5 is raise, the binding site of cam limits the tank circuit 15, and the mutual alignment of its change of shape and cam 11,12 is relevant.
The angular movement of cam ring 11 has determined the corresponding vertical displacement of outer (displacement) cam 12, and by mechanical connection, this grinding tooth 23 meshes the inclined-plane that is limited by groove 24 because these two cams pass through grinding tooth 23.
When cam ring 11 moves when the position, angle of external cam 12 is left, the latter rises and gradually subsequently owing to the increase of difference in height obtains the increase that is meshed with corresponding tilting section 12a.
On the contrary, when cam ring 11 when move the position, angle of external cam 12, difference in height reduces.
Should be pointed out that since in fact to drift 5 play an important role be respectively with a pair of coaxial roller 8 (specifically seeing Fig. 4 and Fig. 5) of described cam-engaged, therefore allow to be used in combination cam 11 and 12.
When upper punch 5 raise, the top 3a of nib 3 was opened, so that can make this nib charging, as usefulness drift working head 5a in the accompanying drawing, shown in the position P2 of 6a.
The vertical displacement of cam 9 makes can regulate working head 5a in the nib stocking process process, the distance between the 6a with the feature of tablet to be formed relevantly.Specifically, when cam 9 was in the punch stroke shown in Fig. 3 and is set in minimum position, roller 8 must rotate minimum constructive height h so that make it locate to enter driving wheel 9 mutually together with diapire through the reference altitude Lo that associates to height Ldo.
Therefore, during the stroke of routine, do not produce the displacement of additional upper punch 5 in this case.
When the maximum travel position Ldm of cam 9 at as shown in Figure 2 drift, the mobile phase of drift should increase.In addition, under the said situation, existing height gain S imposes on roller 8, and this makes upper punch 5 carry out additional displacement.
This just causes roller 8 to run off height H, so that arrive height Ld through the reference altitude Lo that associates, can enter cam 9 in the position between driving cam 9 upper and lower walls at this height upper roller.
Enter after the cam 9, roller 8 reaches and is meshed with the upper wall of the inclination of cam and turns back to aforesaid height Ldm subsequently.
Therefore, loading operation cam 11,12 must allow roller 8 to cross maximum height H or minimum constructive height h.Outer roller 8 can enter driving cam 9 in any centre position between the position that lower wall is neat mutually or upper wall is mutually neat of the road that is limited by cam 9.
As mentioned above, this makes drift can carry out a kind of and the comprehensive additional displacement S of cam 9 displacements, so that increase nib 3 base feeds.
When roller when cam 9 rolls, the decline first of upper punch 5 appears, as using working head 5a among Fig. 2, shown in the position P3 of 6a.
In regulating operating process, the upright position of driving cam 9 changes according to the characteristic of tablet to be formed.Therefore, determined possible additional displacement for upper punch 5.Two values that limit in the method have comprehensively been determined the difference in height that overcome by loading operation cam 11,12.This difference in height is determined by the position each other of appropriate change cam 11,12.
Obviously, in filler or stocking process, the distance of determining between the working head of drift defines the nib volume, promptly constitutes the capacity batching of tablet.
Like this, this device can be regulated use for make the simple and rapid feed proportioning in the pharmacy tablet press machine.This can obtain by effective and reliable technique scheme.
Be appreciated that top illustrated and non-limiting example, therefore, all possible structural variation all is subjected to the protection of the technical program, content described in above-mentioned and appended claims.
Claims (9)
1. proportioner that the pharmacy tablet press machine is used, it comprises:
One is driven the rotary turnplate (1) of rotating around vertical axis;
A succession of nib of opening along the circle spacing of described rotating disk (3), described nib are equipped with Powdered or granular raw material;
Each nib (3) respectively has a pair of upper and lower drift (5,6), described drift have relative working head separately (5a, 6a) and imported rotating disk (1) smoothly and make that (5a 6a) engages with nib (3) described working head;
Driving mechanism connects in order to regulate described working head (5a, 6a) the phase mutual edge distance between with drift (5,6);
Described device is characterised in that, also comprises:
Driving cam means (9) is used to make at least one described drift (5,6) to limit described working head in batching and stocking process, and (this driving cam means (a) can axially move to regulate described distance with respect to rotating disk (1) for 5a, 6a) the phase mutual edge distance between;
By loading operation cam (11,12) this cam of another driving mechanism of Zu Chenging connecting path (15) of being bonded to each other and having determined to have variable geometry and led to described driving cam means (9), described loading operation cam (11,12) each other mechanical connection so that change the profile of described connecting path (15) according to the adjusting position of driving cam means (9).
2. by the described device of claim 1, it is characterized in that, described another driving mechanism comprises the first and second loading operation cams (11 that are respectively inside and outside, 12), they are used as by drift (5,6) roller separately (8) of rotatable support is meshed with it, and the described first and second loading operation cams (11,12) combine each other and limit a tank circuit that has variable geometry and lead to described driving cam means (9) (15).
3. by the described device of claim 1, it is characterized in that, an outer displacement loading operation cam (12) of described another driving mechanism is guided in vertical direction slidably with respect to the fixed structure of machine, and an intrinsic displacement loading operation cam (11) of this driving mechanism with the circular path of rotating disk (1) concentric on slide angularly with respect to fixed structure.
4. by the described device of claim 3, it is characterized in that, first section (12a) of the lower wall of displacement loading operation cam (12) is for being inclined upwardly, and second section (12b) of this lower wall is straight, and two sections of the upper wall of this cam (12) are straight, but vertically staggered and by acclivitous with the rotation direction (M) of roller (8) and one section (12c) that define minimum constructive height poor (h) be connected to each other.
5. by the described device of claim 3, it is characterized in that, first section (11a) of the upper wall of described intrinsic displacement loading operation cam (11) is straight, second section (11b) of this upper wall is for being inclined upwardly, and two sections lower walls of this intrinsic displacement loading operation cam are straight, but staggered in vertical direction and be connected to each other by tilting section (11c), so that determine described minimum constructive height poor (h).
6. by the described device of claim 1, it is characterized in that, described another driving cam means (11,12) makes because moving both vertically of displacement loading operation cam (12) determined the angular movement of interior charging cam (11) by the mutual mechanical connection in inclined-plane.
7. by the described device of claim 6, it is characterized in that, described inclined-plane is formed by a joggle piece (23), this joggle piece is inclined upwardly, be fastened on described in charging cam (11) go up and longitudinal extension, be used for and feed by described displacement that cam (12) limits and upwardly extending groove (24) is meshed.
8. by the described device of claim 1, it is characterized in that, this another loading operation cam mechanism (11,12) driving cam means (9) is led at the height place on the lower guide wall of driving cam means (9), the stroke that is limited with respect to driving cam means (9) produces the additional displacement of drift (5,6) so that increase nib (3) base feed like this.
9. by the described device of claim 1, it is characterized in that described driving cam (9) and described loading operation cam (11,12) work to upper punch (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95121726 CN1122594C (en) | 1995-12-29 | 1995-12-29 | Batching device for tablets making compression machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95121726 CN1122594C (en) | 1995-12-29 | 1995-12-29 | Batching device for tablets making compression machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1153106A true CN1153106A (en) | 1997-07-02 |
| CN1122594C CN1122594C (en) | 2003-10-01 |
Family
ID=5082486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95121726 Expired - Fee Related CN1122594C (en) | 1995-12-29 | 1995-12-29 | Batching device for tablets making compression machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1122594C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491112C (en) * | 2001-03-16 | 2009-05-27 | I.M.A.工业机械自动装置股份公司 | Tablet press machine |
| CN102729519A (en) * | 2012-06-30 | 2012-10-17 | 广州市鹏大机械有限公司 | Disc rotating device for stamping Waffle flower basket disc |
| CN101678628B (en) * | 2007-02-21 | 2013-09-25 | Ima基利安有限两合公司 | Filling shoe for rotary tablet presses |
| CN108407376A (en) * | 2013-06-27 | 2018-08-17 | Gea工艺工程有限公司 | For the quantity-produced method of tablet, the purposes of sheeting system and sheeting system |
| CN111655469A (en) * | 2018-01-25 | 2020-09-11 | 科施股份公司 | Safety guide rail for rotary press |
| CN114929464A (en) * | 2020-01-08 | 2022-08-19 | I·M·A·工业机械自动装置股份公司 | Tablet press |
-
1995
- 1995-12-29 CN CN 95121726 patent/CN1122594C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100491112C (en) * | 2001-03-16 | 2009-05-27 | I.M.A.工业机械自动装置股份公司 | Tablet press machine |
| CN101678628B (en) * | 2007-02-21 | 2013-09-25 | Ima基利安有限两合公司 | Filling shoe for rotary tablet presses |
| CN102729519A (en) * | 2012-06-30 | 2012-10-17 | 广州市鹏大机械有限公司 | Disc rotating device for stamping Waffle flower basket disc |
| CN102729519B (en) * | 2012-06-30 | 2014-09-10 | 广州市鹏大机械有限公司 | Disc rotating device for stamping Waffle flower basket disc |
| CN108407376A (en) * | 2013-06-27 | 2018-08-17 | Gea工艺工程有限公司 | For the quantity-produced method of tablet, the purposes of sheeting system and sheeting system |
| CN111655469A (en) * | 2018-01-25 | 2020-09-11 | 科施股份公司 | Safety guide rail for rotary press |
| US11919268B2 (en) | 2018-01-25 | 2024-03-05 | Korsch Ag | Safety rail for a rotary press |
| CN114929464A (en) * | 2020-01-08 | 2022-08-19 | I·M·A·工业机械自动装置股份公司 | Tablet press |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1122594C (en) | 2003-10-01 |
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Granted publication date: 20031001 Termination date: 20100129 |