Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B30—PRESSES
  • B30B—PRESSES IN GENERAL
  • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
  • B30B15/0023—Drive arrangements for movable carriers, e.g. turntables
• • 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
  • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
  • B30B15/028—Loading or unloading 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
  • B30B15/26—Programme control arrangements

Definitions

• the invention relates to a method for disassembling or assembling the movable or drivable machine parts of rotary tablet presses, in particular for disassembling or assembling the rotatable tablet press kit of the rotary tablet press formed by the die plate, upper stamp guide ring for upper stamp and lower stamp guide ring for lower stamp.
• the invention also relates to generic rotary tablet presses, in which the method can be used advantageously and which have a tablet press formed by a die plate, upper punch guide ring for upper punch and lower punch guide ring for lower punch, with a rotatably mounted in a housing and connected or connectable to a drive shaft. Kit are provided, with stationary control cams are provided for the stroke movement of the upper and lower punches. '
• the object of the invention is to provide a method for disassembling or assembling the drivable machine parts, in particular the tablet press kit, and a rotary tablet press suitable for the use of the method, which facilitates the exchange of the machine parts or of the kit with the greatest possible safety for man and machine.
• each disassembly or assembly step is assigned a predetermined time window and at the end of each disassembly or assembly step or at the end of one of several disassembly or assembly steps
• Assembly steps formed disassembly or Assembly process requires an automatically or manually activated release, whereby the release is possible at the earliest after the associated time window for the dismantling or assembly step or process and only after all preparatory dismantling or assembly steps or processes have been activated of the machine parts or switching of the control device of a 'lifting device for the lifting and lowering of the tablet press kit is possible.
• a control routine is therefore involved in the disassembly or assembly of the machine parts, which must inevitably be carried out with all disassembly or assembly steps before the rotary tablet press can be started again or a lifting device for the comparatively heavy tablet press -
• the kit can be switched on and operated. Particularly in the presence of a lifting device for the tablet press kit, this effectively prevents machine or body parts from being squeezed between the housing and the upper or lower punch guide ring when the tablet press kit is raised or lowered.
• the release or acknowledgment takes place. Completion of the individual disassembly or assembly steps or processes manually by the assembly staff. However, some or all releases are preferably made automatically, the automatic confirmation expediently being given by release signals from sensors, limit switches or the like. takes place, e.g. only send a release signal after a certain unit or machine part has been completely removed from its installation position or has been inserted exactly again into the installation position.
• each demonstration stored in the progress log is Day or assembly step or process can be represented in a display unit in image, writing and / or word, the respective steps or processes being displayed during the course of the associated time window.
• a manual is also available as a video image and / or in language, which tells the assembly staff, for example, exactly which parts or assemblies with which tools and which tightening or loosening forces are to be installed next or must be dismantled.
• the progress log and the time window are stored in an external module that can be connected to the machine controller; This has the advantage that assembly-related shutdown of the tablet press can only be carried out by the operating personnel who are in charge of assembly and equipped with the external module.
• the external module can optionally be used on several rotary tablet presses and / or can be updated without decommissioning the tablet press. It is particularly favorable if the individual disassembly or assembly steps or processes are represented in word, language and / or image with the external module and / or see the automa i -__ or manual release signals are evaluated.
• a lifting device for the installation and removal of the kit, which comprises at least one lifting cylinder which can be controlled via a control device and cooperates with a lifting piston, the control device preferably switching the lifting cylinder only after having gone through an assembly or disassembly process according to one of the Claims 1 to 6 releases.
• the concentricity is preferably Tablet press around one that has stationary control cams that are interrupted on a section of the orbit of the kit, pressure rollers for exerting the compressive forces for tablet pressing being arranged there.
• the reciprocating piston is arranged on the drive axis and in particular can be acted upon hydraulically.
• an external module can be connected to the machine control of the rotary tablet press, in that at least the log with the individual dismantling and assembly steps or processes and the time windows are stored.
• the external module has a display unit such as a screen and / or a loudspeaker, with which the individual disassembly and assembly steps can be represented in word, ... writing and / or image ...
• the lifting device can be equipped with a on a roof structure of the housing arranged transport device, in particular a slide rail, cooperate, in which the tablet press kit can be hung or snapped in the raised state and with which the kit can be linearly moved out of or into the housing.
• FIG. 1 shows a section through a rotary tablet press with the tablet press kit in the operating position.
• FIG. 2 in a sectional view corresponding to Fig. 1
• Fig. 3 is a diagram for the schematic representation of the disassembly method according to the invention.
• FIG. 1 shows a rotary tablet press, denoted overall by 100, with a multi-sided housing 1, of which at least one side wall 2, here the front side wall in FIG. 1, can be removed.
• the housing 1 further comprises a base plate 3, support columns 4 at the corners and a roof structure 5.
• the interior of the housing 1 is divided by an intermediate floor 7 into a press chamber 6 and a drive chamber 8.
• the tablets are pressed by means of a tablet press kit, designated as a whole by 20, which is arranged in the pressing chamber 6 of the tablet press 100 and is coupled to initiate or transmit the rotational movement with a drive shaft 10 which passes through the intermediate floor 7 centrally and in the drive chamber 8 a drive and gear unit 9 is rotatably connected.
• the kit 20, which is non-rotatably connected to the drive shaft 10, consists, as is known per se, of a die plate 21 having circumferentially distributed matrices 22 arranged on a circle, an upper punch guide ring 23 with guides 24 for the upper punch 25 and a lower punch guide ring 26 with guides 27 for the lower punches 28.
• the lifting movement of the upper and lower punches 25, 28 is realized by means of fixed control cams 29, 30, each of which is assigned a lubricant supply 31.
• the control cams 29, 30 are interrupted on a partial section of the orbit of the kit 20, wherein there are drivable pressure rollers 32, 33 arranged, with which the pressing forces for pressing the tablets are applied.
• Other machine parts and machine units are used by filling devices, material wipers, measuring devices, ejection devices and the like. formed, which are not shown in the drawings or are not provided with reference numerals.
• the tablet press kit 20 can be replaced as a unit.
• the drive shaft 10 is provided in its section protruding into the pressing chamber 6 with a cavity 11 formed by a bore, in which a piston 12 is guided with its piston head 13 sealed.
• An axial line 14 opens into the cavity 11 in order to be able to supply hydraulic fluid to the cavity 11 for lifting the reciprocating piston 12 and the piston rod 15, respectively.
• the hydraulic fluid is supplied and discharged by means of control units. and . , , .. facilities that, like the machine control, for example for the drive gear unit 9, are not shown.
• the kit 20 is connected in a rotationally fixed manner to the drive shaft 10, the reciprocating piston 12 is retracted and all of the units are assembled.
• a slide rail 16 is arranged on the underside of the roof structure 5, which has a snap-in recess 17 into which an undercut snap-in part 18 arranged centrally on the upper side of the upper punch guide ring 23 is snapped into place. that can.
• the kit 20 can be lifted vertically with the hydraulic lifting device 35 formed by the cavity 11 and the reciprocating piston 12 into the position shown in FIG.
• the snap-in part 18 is connected to a lifting rod 37 which passes through a central bore 38 in the punch guide ring 23 and which has a shoulder which comes into contact with an abutment shoulder 39 of the stepped bore 38.
• the lifting rod 37 moves in the bore 38 (FIG. 2), while in the operating position it is clamped to the punch guide ring 23 by means of the central screw 36.
• kit 20 Before the lifting device 35 may be actuated, a number of machine parts, units screws, hydraulic lines and the like must. removed and the rotation between kit 20 and drive shaft 10 are released. For example, From Fig. 2 it can be seen that the upper pressure roller 33 is to be removed and that the side walls 36 of the lower cam control 29 must be pushed apart so that the lower punches 28 from the associated. Cam controls .29 are released.
• the kit 20 When assembling a new tablet press kit 20, the kit 20 must first be placed in the reverse order. Corresponding central position is transported into the housing 1 and then lowered into the functional position by means of the lifting device 35.
• FIG. 3 An external module 50 is shown schematically in FIG. 3, which can be used, for example, by a portable computer with data input and output. y
• the - disassembly process" - DMVi can include, for example, the loosening of the filler shoe drive shafts and the loosening of the clamping connection between the filler shoe and the filler pipe, etc.
• a time window t x is stored in the memory and computer unit 53, which consists of a time period predetermined by the factory, which, according to experience at the factory, is at least necessary for performing all steps in the dismantling process DMVi. Accordingly, each further dismantling process DMV X is a corresponding one time slot t x assigned.
• the data stored in the log disassembly operations include information and data or files that after the program has been started by the input START, on -the display 52 'for example as a video sequence, accompanied by language and script can be displayed. The operating personnel can h ier are demonstrated by the disassembly and removal steps to be carried out.
• the process is structured in such a way that the dismantling process DMV 2 following the dismantling process DMVi is only started after a release.
• F x for the completion of all necessary steps in the dismantling process DMVi has taken place.
• the release Fi takes place either manually or by automatic confirmation, provided the correct removal of the machine parts to be dismantled via image or touch sensors, light barriers, limit switches or the like. can be checked.
• the release F ⁇ can, however, take place at the earliest at a time at which the time window t x has expired.
• the ENTER key By pressing the ENTER key, the expiry of the first time window t x started.
• the release F x has been carried out correctly, the next dismantling process DMV 2 is started, so that the dismantling processes and steps to be carried out are shown on the display 52, and the time window t 2 is opened.
• the associated release F x _ 2 for the dismantling process DMV X _ 2 now has a double function; short time delay, the subsequent dismantling process DMV X. i and the associated time window t x _ ⁇ started, on the other hand there is also a signal to the St Your device 40, which acts on the cavity 11 of the lifting device 35 with hydraulic fluid, so that the lifting piston 12 is pushed out with the lifting rod 15 for lifting the kit 20 (as shown in FIG. 2).
• the assembly process starts, in which the individual assembly steps and assembly processes Xn '-' reverse -> order.
• the control device is not actuated at the end of the individual assembly processes, but rather at the beginning, since the individual machine parts and units must then be attached and connected again for the correct operation of the rotary tablet press 100.
• the method of operation with time windows, acknowledgment and visual or audiovisual representation of the respective assembly steps and assembly processes is carried out in the same way as for the disassembly procedure described in detail.
• the disassembly and assembly method can preferably be implemented by a computer program and / or a suitable circuit.
• the arrangement of the lifting device on the axis of rotation A of the kit 20 ensures a space-saving arrangement, but could possibly also be implemented differently.
• the time windows assigned to each assembly or disassembly process are preset at the factory. It goes without saying that experienced operating personnel can under certain circumstances carry out individual of these steps more quickly.
• the storage and computer unit could therefore possibly also be equipped with a learning routine which, after successful confirmation of certain dismantling or assembly processes, provides a shorter time window the next time the method is run.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Automatic Assembly (AREA)
• Encapsulation Of And Coatings For Semiconductor Or Solid State Devices (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=7678271

Family Applications (1)

Country Status (4)

Families Citing this family (8)

Family Cites Families (12)

• 2001
  • 2001-03-20 DE DE10113586A patent/DE10113586A1/de not_active Withdrawn
• 2002
  • 2002-03-14 AT AT02722220T patent/ATE411157T1/de not_active IP Right Cessation
  • 2002-03-14 EP EP02722220A patent/EP1372943B1/fr not_active Expired - Lifetime
  • 2002-03-14 DE DE50212898T patent/DE50212898D1/de not_active Expired - Lifetime
  • 2002-03-14 WO PCT/EP2002/002855 patent/WO2002074527A1/fr not_active Application Discontinuation

Non-Patent Citations (1)

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