JP3756863B2 - Rotary powder compression molding machine - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rotary powder compression molding machine for compressing powder to form tablets, foods and electronic parts.
[0002]
[Prior art]
Conventionally, in this type of powder compression molding machine, a plurality of mortars filled with powder to be compressed are arranged in a circumferential direction at a predetermined pitch, and upper and lower rivets held vertically slidable above and below each mortar. By passing between the upper roll and the lower roll, the tips of the upper punch and the lower punch are operated so as to approach each other at the same time, and the powder filled in the die is compression-molded. Usually, when manufacturing a tablet, for example, the same kind of tablet is manufactured by the same rotary powder compression molding machine (see, for example, Patent Document 1).
[0003]
[Patent Document 1]
Japanese Patent Laid-Open No. 2001-353597
[Problems to be solved by the invention]
By the way, in recent years, due to the shrinking of the market and the like, a thinning operation for reducing the production amount may be performed depending on the kind of tablets to be manufactured. In such a thinning operation, unlike the normal operation, the number of upper and lower eyelids and mortars that are compressed is reduced. Specifically, for example, when the production volume is reduced to 1/3, unnecessary upper and lower eyelids are removed to reduce the number to 1/3, and the mortar corresponding to the removed upper and lower eyelids is removed. In the place where the die is attached, a non-perforated die whose upper surface is flush with the upper surface of the rotating disk is attached. The non-perforated mortar is to prevent the powder from being scattered into the machine through the mortar when the ordinary mortar is left attached.
[0005]
However, when the production amount is reduced in this way, unnecessary work of removing the upper punch, the lower punch and the die and the attaching operation of the non-perforated die are generated. For this reason, it takes a long time to start production, and when removing the die, it is necessary to clean the powder remaining in the portion around the die. Moreover, if the positions of the upper and lower punches to be removed and the non-perforated mortar to be attached are mistaken, the non-perforated mortar without a mortar may cause a failure of each reed.
[0006]
The object of the present invention is to eliminate such problems.
[0007]
[Means for Solving the Problems]
That is, in the rotary powder compression molding machine of the present invention, a rotating disk is disposed in a frame so as to be horizontally rotatable via a vertical shaft, and a plurality of dies are provided on the rotating disk at a predetermined pitch. The upper and lower punches are held so as to be slidable up and down, and the upper and lower punches with the heel tip inserted into the die are filled between the upper and lower rolls. In a rotary powder compression molding machine designed to compress powder, the lower iron corresponding to the upper iron that restricts the insertion of the iron tip into the die is made flush with the upper surface of the rotary plate. It is characterized by comprising fixed position holding means for holding.
[0008]
In such a configuration, since the upper edge of the upper edge is restricted from being inserted into the mortar, the lower edge of the lower edge corresponding to the upper edge is substantially flush with the upper surface of the turntable. Even if it is, the tip of the upper arm will not collide with the tip of the lower arm. For this reason, it is not necessary to perform the work of removing the mortar or removing the lower armpit.
[0009]
In addition, since the tip of the lower punch is substantially flush with the upper surface of the rotating disk, the powder to be compressed does not enter the die. Moreover, since it is not necessary to remove the mortar, it is not necessary to clean the powder accompanying the removal of the mortar.
[0010]
Accordingly, when adjusting the production amount, it is possible to reduce the production amount without removing the upper iron, lower iron and mortar from the rotating disk in the upper and lower iron portions where the compression operation is stopped. . In addition, since the removal work is not necessary, it is possible to shorten the time required for the change work when switching the production amount. In addition, since the tip of the upper arm is restricted from being inserted into the die, it is possible to prevent the upper arm from coming into contact with the lower arm and causing a failure.
[0011]
Specifically, the fixed position holding means is rotatably attached to the lower end portion of the lower heel and is attached to the lower end of the lower heel so as to engage the lower heel cylinder to What consists of the lower eyelid switching member made substantially flush with the upper surface of a turntable is preferable.
[0012]
In order to enable easy switching between the state in which the lower rod is in a normal use state and the state in which the tip of the lower rod is held flush with the upper surface of the turntable, the lower rod cylinder is disposed near the lower end of the inner surface. It is desirable that the lower rod switching member has an inner groove portion that engages with the inner groove portion of the lower rod cylinder at the upper end portion thereof.
[0013]
In order to ensure switching between the normal operation and the thinning operation, the lower rod has a rod body that can be attached to the inside of the lower rod switching member at the mounting position, and the tip of the lower rod switching member can be projected and retracted. It is preferable to have a through-hole into which the tip of a rod that protrudes when not engaged with the inner groove of the lower rod cylinder is inserted. In this way, the tip of the rod body projects and is inserted into the through hole, so that it is possible to reliably prevent the lower rod switching member from engaging with the lower rod cylinder during normal operation. .
[0014]
In order to restrict insertion of the tip of the upper heel into the mortar, the upper heel has a heel body, and a heel body having a heel that is removably attached to the heel body and inserted into the mortar. It is preferable that the lower edge of the lower edge is removed when the edge of the lower edge is held flush with the upper surface of the turntable.
[0015]
In order to produce other varieties in a small quantity, it is preferable to attach a plurality of mortars having different inner diameters and a plurality of upper and lower ridges having rivets corresponding to the inner diameter of the mortar. If it is such a structure, set the die to be used according to the variety, attach the upper and lower eyelids according to the die, and switch the one to be used, making it easy to produce other types of small quantities. Can be realized.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
[0017]
FIG. 1 shows the overall configuration of a rotary powder compression molding machine of the present invention. In this rotary powder compression molding machine, a rotating disk 3 is disposed in a frame 1 so as to be horizontally rotatable via a vertical shaft 2, and a plurality of dies 4 are provided on the rotating disk 3 at a predetermined pitch. An upper rod 5 and a lower rod 6 are held so as to be slidable vertically. When the tips of the upper punch 5 and the lower punch 6 are inserted into the mortar 4 and passed between the upper roll 71 and the lower roll 72, the powder filled in the mortar 4 can be compressed. The upper roll 71 and the lower roll 72 are arranged at the vertical position of the rotating disk 3 around the vertical shaft 2. It should be noted that description of specific configurations such as a powder supply mechanism and a compressed molded product take-out mechanism can be widely applied to configurations known in the art, and are therefore omitted in this embodiment.
[0018]
In addition, an upper rod guide rail mechanism 8 that raises and lowers the upper rod 5 and a lower rod guide rail mechanism 9 that raises and lowers the lower rod are disposed around the rotating disk 3 (an expanded view is shown in FIG. 2). ). The upper iron guide rail mechanism 8 includes an upper iron lowering cam 81 for inserting the tip of the upper iron 5 into the die 4, and the tip of the upper iron 5 when the molded product is taken out from the die 4. An upper elevating cam 82 and the like for extracting from the upper end are included. Further, the lower iron guide rail mechanism 9 has a lowering device 91 for lowering the lower iron 6 when filling the die 4 with the powder, and the lower iron is raised to a predetermined position in order to adjust the amount of the filled powder. A dispensing rail 92 and the like are included. The lowering device 91 has an opening 91a through which the lower rod 6 passes on the upper surface thereof, and the cam portion 63b of the switching cam 63 described later is usually provided by protruding the edges of the opening 91a toward each other. It has a guide portion 91b that comes into sliding contact during operation.
[0019]
Specifically, a vertical shaft 2 supported by a bearing 21 is disposed at a substantially central portion of the frame 1, and a worm wheel 22 is fixed near the lower end of the vertical shaft 2. The rotational driving force of the motor 25 is transmitted to the wheel 22 via the worm 23 and the belt 24. A rotating disk 3 divided into three functional parts is fixed near the upper end of the vertical shaft 2.
[0020]
The turntable 3 is provided at a lower portion thereof and has a lower heel holding portion 31 that holds the lower heel 6 so as to be slidable up and down, and an upper ridge that is provided at the upper portion and holds the upper heel 5 so as to be vertically slidable. The holding portion 32 and a mortar portion 33 provided between the upper heel holding portion 32 and the lower heel holding portion 31 and detachably fitted with the mortar 4 are configured. A plurality of hook holding holes 32a and 31a for holding the upper hook 5 and the lower hook 6 so as to be slidable are formed in the upper hook holding part 32 and the lower hook holding part 31, respectively. A lower rod cylinder 35 for holding the lower rod 6 at a predetermined height position is attached to the rod holding hole 31 a of the lower rod holding portion 31. In the mortar portion 33, a plurality of mortar holding holes 33a for detachably holding the mortar 4 are formed.
[0021]
The mortar 4 includes a mortar body 41 mounted in the mortar holding hole 33a, and a wear-resistant sleeve 42 that is closely fitted to the inner periphery of the mortar body 41. That is, in the rotating disk 3, the lower punch 6, the upper punch 5 and the mortar 4 are positioned so that their centers are located on the same straight line.
[0022]
On the other hand, at a predetermined rotational position of the rotating disk 3, the upper end of the upper punch 5 with the tip inserted into the mortar 4 and the lower end of the lower punch 6 with the tip inserted into the mortar 4 are respectively attached while passing. The upper roll 71 and the lower roll 72 are pivotally attached to the positions where the upper roll 71 and the lower roll 72 are pushed into the mortar 4 by the upper roll 71 and the lower roll 72, respectively. Compression molding is performed.
[0023]
As shown in FIG. 3, the upper collar 5 includes an upper collar body 51, an upper collar tip 52 that is detachably attached to one end of the upper collar body 51, that is, a lower end, and the upper collar guide rail mechanism 8. And a guide roller 53 that rolls along.
[0024]
The upper heel body 51 is held by the upper heel holding portion 32 so as to be movable up and down, and a plurality of upper heel tip portions 52 having different outer diameters of the heel tips are selectively attached to lower ends thereof. A plurality of inclined ridges 51a are formed at three positions 120 ° apart from each other in the circumferential direction at the distal end portion of the upper rod main body 51, and the space between the inclined ridges 51a is not a curved surface but a flat surface. That is, each inclined protrusion 51a is formed in a fan-shaped circumferential portion having a central angle of about 60 ° with respect to the center of the upper collar main body 51, and therefore, a plane portion between the inclined protrusions 51a. Is also formed by deleting the curved surface in the angle range of about 60 °.
[0025]
The upper hook tip 52 includes a cap member 52a that is detachably attached to the distal end portion of the upper hook main body 51 by a screw action, and a hook member 52b that is fixed by the cap member 52a. The cap member 52a is formed with inclined grooves 52aa corresponding to the inclined protrusions 51a of the upper collar body 51 at three locations on the inner peripheral wall surface so as to be screwed to the upper collar body 51. And in order to perform multi-product production, a plurality of different tips of the tip member 52b are prepared. Therefore, for example, even when producing molded products of different varieties in outer diameter, the upper collar body 51 can be used in common, and various molded products can be compression-molded simply by replacing the collar member 52b. Is. In addition, when removing the tip member 52b of the upper punch 5 that stops the compression molding in order to perform multi-product small-volume production, a tip stopper member 54 that prevents the powder from adhering to the tip portion of the tip main body 51 is provided. The cap member 52a is attached to the tip body 51 in the state where it is put in the cap member 52a, and the opening portion through which the tip member 52b of the cap member 52a passes is blocked by the tip plug member 54.
[0026]
As shown in FIG. 4, the lower punch 6 includes a lower punch main body 61, a lower punch tip 62 that is detachably attached to one end of the lower punch main body 61, that is, an upper end, and a lower end of the lower punch main body 61. A switching cam 63 that is a lower collar switching member that constitutes a fixed position holding means that is pivotally attached to the lower cam, and a lower collar head 64 that is attached to the lower side of the switching cam 63.
[0027]
The lower rod body 61 has a key member 61a for preventing rotation on its side surface, and a lower end portion to which the switching cam 63 is attached is thinner than the other portions, and a step portion 61b is formed at the boundary portion. Is. Then, the switching cam 63 engages with the stepped portion 61b, and when the switching cam 63 is not moved up and down, the lower eyelid main body 61 stops at a predetermined position. A positioning set pin 61 c for positioning the switching cam 63 is provided in a portion surrounded by the switching cam 63. The positioning set pin 61c is provided in the lower rod main body 61, and one opening is built in a mounting through hole 61h closed by a hexagon socket set screw 61e. It is energized towards it so that it can sink. The other opening of the mounting through-hole 61h, that is, the opening on the side where the positioning set pin 61c protrudes and retracts is always directed to the outer side of the turntable 3 because the rotation of the lower collar body 61 is restricted by the key member 61a. .
[0028]
Similar to the case of the upper collar 6, the lower collar part 62 is composed of a cap member 62a having an internal thread cut therein and a collar member 62b fixed by the cap member 62a. The cap member 62a may be the same as that of the upper collar 5.
[0029]
The switching cam 63 includes an attachment barrel portion 63a and a cam portion 63b provided at the lower end portion of the attachment barrel portion 63a. The mounting barrel 63a has a flange 63aa protruding outward on the outer periphery of the upper end, and a through hole 63ab into which the tip of the positioning set pin 61c is inserted at the lower end. The flange portion 63aa is formed on the outer peripheral portion of the attachment barrel portion 63a facing backward. The cam part 63b is integrally formed at the lower end of the mounting body part 63a so as to protrude in the same direction as the flange part 63aa.
[0030]
Since the lower eyelid head 64 is configured so that the lower eyelid 6 is not rotated by the key member 61a, when being guided by the lower eyelid rail guide mechanism 9 or when passing between the upper and lower rolls 71 and 72, It is attached to the lower iron body 61 by a hexagon screw hole set screw 64a so as to rotate by sliding. The set screw 64a with a hexagonal screw hole is attached so as not to fall off in a rotatable manner by coming into contact with a tapered portion 61m provided at the lower end portion of the lower rod main body 61. The hexagon screw hole set screws 64a are used as a set in order to prevent loosening.
[0031]
The lower rod 6 having the above configuration is held so as to be movable up and down by the lower rod cylinder 35 attached to the lower rod holding portion 31 during normal operation, and is predetermined by the lower rod cylinder 35 during thinning operation. In other words, the tip of the lower rod 6 is held at a position flush with the upper surface of the turntable 3. The lower rod cylinder 35 constituting the fixed position holding means has a mounting flange 35a at the lower end, and a dust seal DS for preventing powder intrusion is attached to the inner peripheral wall near the upper end. In addition, an inner groove portion 35b including an inner groove 35ba that engages the flange portion 63b of the switching cam 63 and a guide groove 35bb that guides the flange portion 63aa to the inner groove 35ba is formed at a position inside the mounting flange 35a. It is. The inner groove 35ba has an inner height that is substantially the same as the thickness of the flange 63b, and the guide groove 35bb has a width that allows the flange 63b to pass through. Further, a key groove 35d in which the key member 61a is slidably contacted is provided inside the lower rod cylinder 35.
[0032]
In this embodiment, a temperature adjusting mechanism is provided for adjusting the temperature around the mortar 4 of the rotating disk 3 in particular. The temperature adjusting mechanism is provided in the wall thickness of the turntable 3 and communicates with the distribution path A, the medium path B, and the collecting path C, and the introduction path that is provided in the vertical shaft 2 and communicates with the distribution path A. D and a discharge route E communicating with the collecting route C, and a connecting member 10 is connected to the introduction route D and the discharge route E so that a temperature adjusting medium is circulated. The distribution path A and the collection path C are formed in an annular shape centering on the axis of the rotating disk 3. The medium passage B is formed between the dies 4 and communicates the distribution route A and the collecting route C. Then, the medium, for example, cooling water supplied to the introduction path D via the connection member 10 flows into the distribution path A and flows into the medium path B to cool each die 4. Thereafter, the cooling water flows into the collecting path C and is discharged to the outside through the discharge path E from the connection member 10.
[0033]
In such a configuration, in normal operation, that is, when the same tablet is tableted in all the mortars 3, as shown in FIGS. 5 and 6, the collar portions 63aa of the switching cams 63 of all the lower collars 6 are lowered. A position where the inner groove 35ba of the cylindrical body 35 is not engaged, that is, the flange portion 63aa is set in a state where it is not engaged with the lower flange cylinder portion 35. In this state, the collar portion 63aa is located in the guide groove 35bb. Therefore, since the lower rod 6 is not held by the lower rod cylinder 35, the lower rod 6 is guided or urged by the lower rod guide rail mechanism 9 or the lower roll 72 to move up and down. When the lower collar 6 moves up and down, the key member 61a slides in the key groove 35d, so the lower collar body 61 and the lower collar tip 62 do not rotate about the central axis of the lower collar 6, but the lower collar head Since 64 rotates, the lower collar 6 is not twisted. Further, the tip of the positioning set pin 61c of the lower rod main body 61 protrudes and is inserted into the through hole 63ab provided in the switching cam 63, so that the switching cam 63 is in a state in which the rotation is restricted. In this state, the cam portion 63b of the switching cam 63 is in sliding contact with the guide portion 91b of the lowering device 91, and the lower iron 6 is guided to the lowest position for filling the powder into the die 4.
[0034]
Next, when performing the thinning operation, as shown in FIGS. 7 to 9, the cap member 52 a of the upper iron 5 that stops the compression molding of the powder is loosened to remove the tip member 52 b and the hook of the switching cam 63. The portion 63 a is engaged with the inner groove 35 ba of the lower rod cylinder 35, and the lower rod 6 is held with its flange point flush with the upper surface of the rotating disk 3. As shown in FIG. 7, the heel tip member 52 b is removed by first guiding the desired upper heel 5 to the heel setting position SET (indicated by an arrow in FIG. 2), and the heel setting member 83 of the upper heel guide rail mechanism 8. Is moved toward the center of the rotating disk 3 to lower the guide roller 53 of the upper rod 5 from the rod setting member 83. By this operation, the upper collar 5 is lowered by the thickness of the collar setting member 83, and the cap member 52a of the upper collar 5 is exposed to the lower side of the upper collar holding portion 32. In this state, when the cap member 52a is rotated 60 ° in the counterclockwise direction, the fitting between the inclined protrusion 51a of the upper rod main body 51 and the inclined groove 52aa of the cap member 52a is released, and the cap member 52a is It will be in the state which can be removed from the main body 51. Then, the hook member 52b is taken out from the cap member 52a, and instead, the hook member 54 is inserted into the cap member 52a, and the cap member 52a is attached to the upper hook body 51. For attaching the cap member 52 a, the inclined groove 52 aa is positioned below the flat portion formed between the inclined protrusions 51 a of the upper rod main body 51, and the cap member 52 a is overlapped with the tip of the upper rod main body 51. Thereafter, when the cap member 52a is rotated in the clockwise direction by 60 °, the inclined groove 52aa is screwed with the inclined protrusion 51a, and the cap member 52a is attached to the upper collar body 51. Then, after the upper collar 5 is pulled up and the collar setting member 83 is moved to the lower side of the guide roller 53, it is fixed with the bolt BL.
[0035]
Next, in order to hold the lower rod 6 in the above-described state, first, a positioning set pin 61c inserted into the through hole 63ab of the switching cam 63 is inserted, and a rod is inserted into the through hole 63ab of the switching cam 63. Then, the rod is pushed into the lower iron body 61 with the stick. Then, with the tip of the positioning set pin 61c retracted from the through-hole 63ab into the lower rod body 61, the switching cam 63 is rotated by approximately 90 °, so that the flange portion 63aa is formed into the inner groove of the lower rod cylinder 35. Engage with 35ba. As a result, the switching cam 63 is held by the lower rod cylinder 35, and the tip of the lower rod 6 is flush with the upper surface of the turntable 3. When the switching cam 63 is rotated in this way, the cam portion 63b of the switching cam 63 is positioned in the longitudinal direction of the lowering device 91, so that the cam portion 63b does not contact the guide portion 91b of the lowering device 91. is there. That is, the switching cam 63 is in a state where it can come out from the opening 91a of the lowering device 91 upward. When the thinning operation is started, the lower rod 6 is engaged with the lower rod cylinder 35 because the switching cam 63 is engaged with the lower rod cylinder 35. Therefore, as shown by the imaginary line in FIG. It moves in the state where the same height is maintained irrespective of the configuration of the six head portions 64.
[0036]
Therefore, when the operation is started, each of the upper rod 5 and the lower rod 6 passes between the upper roll 71 and the lower roll 72, but the tip member 52 is removed from the upper rod 5 that has stopped the compression molding. The tip of the heel is restricted from reaching the die 4. In addition, as described above, the lower punch 6 that has stopped the compression molding has its tip held flush with the upper surface of the rotating disk 3, so that the powder to be compressed in the die 4 may be filled. Absent. In this way, by removing the tip of the upper punch 5 and rotating the switching cam 63 to make the die 4 substantially non-perforated by the lower punch 6, the thinning operation can be performed by a simple operation that does not require skill. The upper punch 5, the lower punch 6 and the die 4 can be set to stop the powder compression. Therefore, the work time required for switching between the normal operation and the thinning operation can be shortened. Moreover, since the mortar 4 is not removed, the powder cleaning operation before the thinning operation can be made unnecessary.
[0037]
When performing such a thinning operation, for example, the upper punch 5, the lower punch 6 and the mortar 4 that stop the compression of the powder have dimensions different from those of the upper punch 5, the lower punch 6 and the mortar 4 where the powder is compressed. If you set a product, in other words, a combination to form a molded product of a variety, you can produce a small amount of other varieties by switching the settings of the upper plate 5 and the lower plate 6 with a single rotary powder compression molding machine. can do. That is, when three kinds of varieties are produced, a combination of three kinds of upper iron 5, lower iron 6 and mortar 4 is set. For example, the combination of the first upper arm, the lower arm and the mortar is a small-diameter tablet, the second combination is a tablet having a larger diameter than the small one, and the third combination is a larger-diameter tablet. When producing a tablet by the first combination, the upper punch 5 and the lower punch 6 are set by the above-described method so as to stop the production by the second and third combinations. In the above-described embodiment, both the upper collar 5 and the lower collar 6 are configured such that the collar tips can be replaced independently, so that the collar member 52b of the upper collar tip portion 52 and the lower collar tip portion 62 If the tip member 62b is replaced, it can be easily changed to one for a different product type.
[0038]
In this way, by selecting and operating one of the first combination, the second combination, and the third combination described above, in the same rotary powder compression molding machine, Compressed products of different varieties, that is, tablets can be produced without removing the lower punch 6 and the die 4 each time. Therefore, by making the number of combinations more than the number described above, a large variety can be easily produced in a small amount.
[0039]
The present invention is not limited to the above embodiment.
[0040]
In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the gist of the present invention.
[0041]
【The invention's effect】
As described in detail above, the present invention limits the insertion of the tip of the upper punch into the die when adjusting the production amount, and rotates the tip of the lower punch corresponding to the upper punch. Since it is held almost flush with the upper surface of the board, it is possible to reduce the production amount without removing the upper iron, lower iron and mortar from the rotating disk in the upper and lower iron parts where the compression operation is stopped. . Moreover, since the removal work is not necessary, the time required for the change work when the production amount is switched can be shortened. In addition, since the tip of the upper heel is restricted from being inserted into the die, it is possible to prevent the upper heel from coming into contact with the lower heel and causing a failure. Furthermore, since the tip of the lower iron is almost flush with the upper surface of the turntable, it prevents the powder to be compressed from entering the die even though the die is attached to the turntable. can do.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view showing an embodiment of the present invention.
FIG. 2 is a development view for explaining the operation of the upper and lower eyelids of the embodiment.
FIG. 3 is an exploded perspective view of an upper eyelid of the same embodiment.
FIG. 4 is an exploded perspective view of the lower eyelid of the embodiment.
FIG. 5 is an enlarged cross-sectional view of a main part when a normal operation of the embodiment is performed.
6 is a cross-sectional view taken along line BB in FIG.
FIG. 7 is an enlarged cross-sectional view showing a main part of a preparatory work before the thinning operation according to the embodiment;
FIG. 8 is an enlarged cross-sectional view of a main part when the thinning operation is performed in the same embodiment;
9 is a cross-sectional view taken along line AA in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Frame 2 ... Standing shaft 3 ... Turntable 4 ... Mortar 5 ... Upper iron 6 ... Lower iron 35 ... Lower iron cylinder 63 ... Switching cam

Claims (6)

In the frame, a rotating disk is arranged so as to be horizontally rotatable via a vertical shaft, and a plurality of mortars are provided on the rotating disk at a predetermined pitch, and upper and lower ridges can be slid vertically. Rotary powder compression molding, in which the powder filled in the die is compressed by passing the upper and lower punches with the tip of the die inserted into the die between the upper and lower rolls. In the machine
Rotation characterized by comprising fixed position holding means for holding the lower eyelid corresponding to the upper eyelet for which the insertion of the edge of the tip into the mortar is held substantially flush with the upper surface of the turntable Type powder compression molding machine. The fixed position holding means is attached to the rotating base with a lower casing cylinder and is rotatably attached to the lower end of the lower casing to engage the lower casing cylinder so that the tip of the lower casing is connected to the upper surface of the rotating disk. 2. The rotary powder compression molding machine according to claim 1, comprising a lower iron switching member that is substantially flush. The lower rod cylinder has an inner groove portion that engages with the lower rod switching member in the vicinity of the lower end of the inner surface, and the lower rod switching member engages with the inner groove portion of the lower rod cylinder at the upper end portion thereof. The rotary powder compression molding machine according to claim 2, comprising: The lower rod has a rod body that is attached to the inside of the lower rod switching member at the mounting position and the tip can project and retract, and the lower rod switching member is not engaged with the inner groove portion of the lower rod cylinder. The rotary powder compression molding machine according to claim 2 or 3, wherein the rotary powder compression molding machine has a through-hole into which a tip of a bar protruding sometimes is inserted. The upper punch is composed of a punch main body and a tip body having a tip that is detachably attached to the punch main body and is inserted into the die, and the lower punch is flush with the upper surface of the turntable. The rotary powder compression molding machine according to claim 1, 2, 3 or 4, wherein the tip is removed when held. 6. A rotary type according to claim 1, wherein a plurality of mortars having different inner diameters and a plurality of upper and lower ridges having rivets corresponding to the inner diameter of the mortar are attached. Powder compression molding machine.

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