JP2008162619A - Powder and granule scraper of powder and granule sub-packaging machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a powder and granule scraper of a particle and granule sub-packaging machine which can prevent powder and granule from entering between a rotor plate and a scraping plate or between an inhibition plate and the scraping plate. <P>SOLUTION: This relates to the powder and granule scraper for scraping the powder and granule received in a groove formed on the rotary table of the powder and granule sub-packaging machine. The scraper is equipped with a rotary plate for blocking the powder and granule and a scraping plate built independently from the rotary plate for scraping the powder and granule blocked by the rotary plate from the groove. A spacer is provided between the rotary plate and the scraping plate and is elastically compressed by holding power applied in the direction for integrating the rotary plate and the scraping plate. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a powder and particle scraping device in a powder medicine packaging machine for packaging powder, for example, as powder.

DESCRIPTION OF RELATED ART Conventionally, there exists a thing shown in the following patent document 1 in the powder body scraping apparatus in the powder packing machine for packing powder as a granular material.
The granular material scraping device scrapes the granular material received in the groove formed on the rotary table of the powder medicine packaging machine. The powder and particle scraping device includes a rotating plate that dams up the powder, a scraping plate that scrapes the powder held up by the rotating plate, and a scraping plate that scrapes the powder and particles. A depressing plate for deterring the flow of powder on the opposite side of the rotating plate when taking, the scraping plate is separated from the rotating plate and the deterring plate, It is provided so that it may be clamped by the plate surface.
JP-A-2005-41502

  In the granular material scraping device having the above configuration, the scraping plate is separated from the rotating plate and the restraining plate, and is sandwiched between the plate surfaces of the rotating plate and the restraining plate. If the granular material to be scraped is scraped, it is conceivable that the granular material enters between the rotating plate and the scraping plate or between the suppression plate and the scraping plate.

  Therefore, in view of the above-mentioned problems, the present invention provides a granular material of a granular material packaging machine that can prevent the granular material from entering between the rotating plate and the scraping plate or between the suppression plate and the scraping plate. It is an object to provide a scraping device.

  The present invention relates to a powder particle scraping device of a powder particle separator for scraping powder particles received in a groove formed on a rotary table of the powder particle distributor, A rotating plate for damming the particles, and a scraping plate for scraping powder particles blocked by the rotating plate separately from the rotating plate, from between the rotating plate and the scraping plate. In addition, a spacer that is elastically compressed by the clamping force by applying a clamping force in a direction in which the rotating plate and the scraping plate are integrated is provided.

  In the above configuration, when a clamping force is applied to the scraping plate and the rotating plate so as to integrate the scraping plate and the rotating plate, the spacer is deformed so as to be compressed by the clamping force, so that the spacer repels the clamping force. An elastic restoring force acts in the direction, and no gap is generated between the scraping plate and the rotating plate. Therefore, the granular material does not enter between the scraping plate and the rotating plate even by the scraping operation of the granular material of the scraping plate.

  In order not to generate a gap between the scraping plate and the rotating plate, the scraping plate and the rotating plate can be solved by providing the scraping plate and the rotating plate integrally. Since it is preferable in terms of cost to perform the maintenance separately, it is disadvantageous in terms of this maintenance that the scraping plate and the rotating plate are provided integrally. A separate structure is selected.

The granular material scraping device of the granular material packaging machine of the present invention is provided with an elastic blade that scrapes the granular material in contact with the groove at the tip of the scraping plate, and the spacer is integrated with the elastic blade. It is provided on the side surface of the scraping plate.
In the above configuration, the scraper plate can be easily manufactured by forming the spacer integrally with the elastic blade.

In the granular material scraping device of the granular material packaging machine of the present invention, an elastic body capable of contacting the groove is provided along the outer peripheral surface of the rotating plate.
According to the above configuration, when the elastic body is damaged by contact with the groove and rotated, maintenance (including replacement) can be performed separately from the scraping plate. Increase in cost can be suppressed.

  The granular material scraping device of the granular material packaging machine of the present invention includes a deterrent plate for suppressing the flow of granular material to the opposite side of the rotating plate when the granular material is scraped by the scraping plate. Provided separately from the scraping plate, the spacer that is elastically compressed by the clamping force by applying the clamping force in the direction of integrating the rotating plate scraping plate and the restraining plate is a scraping plate and It is characterized by being provided between the deterrent plates.

  According to the above configuration, when a clamping force is applied to the scraping plate and the suppression plate so that the scraping plate and the suppression plate are integrated, the spacer is deformed so as to be compressed by the clamping force. An elastic restoring force acts in the direction of repulsion, and no gap is generated between the scraping plate and the restraining plate. Therefore, the granular material does not enter between the scraping plate and the suppression plate even by the scraping operation of the granular material of the scraping plate.

In the granular material scraping device of the granular material packaging machine of the present invention, the spacer is integrated with the elastic blade and provided on the side surface of the scraping plate.
As in the above configuration, the scraper plate can be easily manufactured by forming the spacer integrally with the elastic blade.

In the granular material scraping device of the granular material packaging machine of the present invention, the spacer is formed of silicon rubber.
According to the said structure, it becomes possible to manufacture a scraping board easily by welding silicon rubber by making the main body of a scraping board into a base material. In this case, it is preferable that the scraper plate has a metal body.

  According to the granular material scraping device of the granular material packaging machine of the present invention, when a clamping force is applied to the scraping plate and the rotating plate so as to integrate the scraping plate and the rotating plate, the spacer is compressed by the clamping force. Therefore, an elastic restoring force acts on the spacer in a direction repelling the clamping force, and no gap is generated between the scraping plate and the rotating plate. Therefore, the granular material does not enter between the scraping plate and the rotating plate even by the scraping operation of the granular material of the scraping plate.

Hereinafter, a powder scraping device of a powder packing machine according to the present invention will be described with reference to the drawings.
1 is a plan view showing a schematic configuration of a powder medicine packaging machine, FIG. 2 is an enlarged plan view of a main part, FIG. 3 is a front view of the main part, and FIGS. 4 (a), (b) and (c) are details of a scraping plate. FIG.

As shown in these drawings, the powder medicine packaging machine 1 is received in a rotary table 2 formed in a circular shape (doughnut shape) in a plan view, and in a groove 3 having a ring shape formed in the plan view. A powder scraping device 5 for scraping the powder 4 is provided.
The groove 3 is formed in the turntable 2 in a concave shape that is recessed downward, and the groove bottom surface 3a is formed in an arc shape.

The powder scraping device 5 has a rotating plate 6, a scraping plate 7, and a deterrent plate 8, and these rotating plate 6, scraping plate 7 and deterring plate 8 are provided separately from each other. The rotating plate 6, the scraping plate 7, and the suppression plate 8 are arranged in this order from the upstream side of the rotating plate 6 in the powder supply rotation direction.
The rotary plate 6 dams the powder 4 supplied to the groove 3 on the upstream side of the rotary table 2.

The rotating plate 6 has a rotating plate main body 10 formed in an annular shape when viewed from the front, and an annular weir integrally formed on the rotating plate main body 10 so as to protrude radially outward at an outer peripheral portion of the rotating plate main body 10. And a body 11. A rotating body 13 is integrally fitted in the center hole 12 of the rotating plate body 10 from the downstream side in the powder 4 supply direction. In addition, insertion holes 14 that are spaced apart from each other in the circumferential direction are formed in the outer peripheral portion of the center hole 12 of the rotating plate body 10 so that the mounting surface 15 of the rotating body 13 protrudes downstream from the mounting plane 15. The provided pin 16 is inserted into the insertion hole 14, and the rotating plate 6 is attached to the rotating body 13 so as not to rotate (to rotate integrally with the rotating body 13).
The dam member 11 is made of silicon rubber, and its radially outer end 18 can contact the groove bottom surface 3a.

The scraping plate 7 is for scraping the powder 4 blocked by the rotating plate 6 from the groove 3 and cutting it out to a hopper 20 disposed on the side of the rotating table 2. The scraping plate 7 includes a scraping plate main body 21, an elastic blade (scraping blade) 22, and spacers 23a and 23b.
The scraping plate body 21 is integrally formed from a distal end plate portion 24 and a proximal end plate portion 25, and the distal end plate portion 24 is formed wider than the proximal end plate portion 25. The scraping plate body 21 has a stepped surface 26 that falls at a right angle from the proximal end plate portion 25 side of the distal end plate portion 24.
The tip plate portion 24 is provided with the elastic blade 22 protruding further forward. The elastic blade 22 is formed in a plate shape whose tip is cut at an acute angle so that the powder 4 can be scraped (cut out) by contacting the groove bottom surface 3a, and is slightly smaller than the width B1 of the tip plate portion 24. It protrudes on both sides in the width direction of the tip plate portion 24 so as to be formed larger. Further, the elastic blade 22 is heat-sealed to the tip plate portion 24 and fixed to the tip plate portion 24 so as to form a coating portion 28 having a uniform thickness t1 that covers one side surface of the tip plate portion 24. Has been.

  The spacers 23 a and 23 b are formed integrally with the elastic blade 22. The spacers 23a and 23b are extended on both side surfaces of the scraping plate main body 21 with a uniform width B2 along the both sides. That is, the thickness B2 is substantially equal to the thickness of the portion of the elastic blade 22 that protrudes on both sides in the width direction of the tip plate portion 24.

  Parallel retaining protrusions 30 that are separated from each other by a predetermined distance L1 along the width direction of the base end plate portion 25 are fixed to the base end plate portion 25 by, for example, heat sealing. The thickness of the retaining protrusion 30 is equal to the thickness t1 of the covering portion 28. The cross-sectional shape of the retaining protrusion 30 is formed in a hemispherical shape, and is formed so as to be continuous with the covering portion 28 via a sheet portion 31 having a very thin thickness compared to the covering portion 28.

An attachment support 32 for attaching and supporting the scraping plate 7 is mounted on the rotary plate 6 so as to overlap from the upstream side via a pin 16 inserted through the insertion hole 14 on the upstream side.
The attachment support 32 is formed in a cylindrical shape with the downstream side opened and the upstream side sealed, and a groove portion 33 into which the upstream end portion of the pin 16 is inserted and fixed is formed on the downstream side.
A support recess 35 for inserting and supporting the base end plate portion 25 of the scraping plate 7 in the width direction is provided on the upstream side wall 34 of the mounting support 32 by a predetermined distance L2 with respect to the center of the mounting support 32. The position is shifted. The supporting recess 35 is formed to be slightly thicker than the thickness of the base end plate portion 25 of the scraping plate 7, and a hemispherical retaining recess 36 into which the retaining projection 30 is inserted is formed in the supporting recess 35. It is formed continuously. The depth of the support recess 35 is formed to be substantially equal to the width of the base end plate portion 25, and when the base end plate portion 25 is mounted, one spacer 23b projects from the support recess 35 to the upstream side. Yes. Further, when the base end plate portion 25 is mounted, the other spacer 23 a is configured to protrude further downstream from the downstream end face of the mounting support 32.

When the base end plate portion 25 is attached to the support recess 35, the distal end plate portion 24 protrudes from the mounting support body 32 along the radial direction of the mounting support body 32.
Further, the upstream side wall 34 of the mounting support 32 is provided with a plurality of radially spaced pins 17 protruding further upstream.

  The suppression plate 8 is formed in a substantially elliptical shape when viewed from the front. The curvatures of the curved portions on both sides in the radial direction are set so as to substantially match the curvature of the mounting support body 32, and the pin 17 is inserted into the pin hole 37 on the proximal end side, so that the upstream side of the mounting support body 32. It is attached to the side wall 34 in an overlapping manner.

  Rotation transmission holes 41a, 41b, 41c through which the rotation transmission shaft 40 is inserted are respectively formed at the centers of the rotating body 13, the mounting support 32, and the restraining plate 8, and the rotation transmission holes 41a, 41b are formed. , 41c, a rotation transmission shaft 40 is fitted inside.

The distal end portion 40a of the rotation transmission shaft 40 protrudes from the rotation transmission hole 41c of the restraining plate 8, and an end cap 45 having a screw hole 45a that is screwed to the distal end portion 40a is attached to the center. . The end cap 45 is formed in a cross-sectional cylindrical shape with the downstream side opened and the upstream side closed, and the end cap 45 is firmly screwed into the tip end portion 40a of the rotation transmission shaft 40, thereby the end cap 45 is closed. The downstream outer peripheral edge portion 45 b is in pressure contact with the plate surface of the suppression plate 8.
As a result, the rotating body 13, the mounting support body 32, the scraping plate 7, and the suppression plate 8 are integrated by receiving a pressing force in the axial direction of the rotation transmission shaft 40.

  The base end portion 40b of the rotation transmission shaft 40 is connected to a drive device 50 for rotating the rotation transmission shaft 40 about its axis. Reference numeral 51 denotes a cleaning device for cleaning the groove bottom surface 3 a of the groove 3.

  In the above configuration, the downstream outer peripheral edge 45b of the end cap 45 is pressed against the plate surface of the restraining plate 8 by firmly screwing the screw hole 45a of the end cap 45 to the tip 40a of the rotation transmission shaft 40. As described above, the rotating body 13, the mounting support body 32, the scraping plate 7, and the suppression plate 8 are integrated by receiving the pressing force in the axial direction of the rotation transmission shaft 40. .

When the base end plate portion 25 of the scraping plate 7 is attached to the support concave portion 35 of the support body 32, one spacer 23b is configured to protrude upstream from the support concave portion 35, and the base end plate portion 25 is Since the other spacer 23a protrudes further downstream from the downstream end face of the mounting support 32 when mounted, the screw hole 45a of the end cap 45 is provided at the tip 40a of the rotation transmission shaft 40. By firmly screwing, one spacer 23 b is pressed against the restraining plate 8 from the downstream side, and the other spacer 23 a is pressed against the plate surface of the rotating plate body 10 from the upstream side. Since the spacer 23b is made of an elastic body, an elastic repulsive force corresponding to the amount compressed is generated, one spacer 23b presses the restraining plate 8, and the other spacer 23a is the rotating plate body. 10 is pressed, there is no room for a gap to be generated between the scraping plate 7 and the rotary plate main body 10 and between the scraping plate 7 and the suppression plate 8.
For this reason, even if the powder scraping device 5 is rotationally driven to cut the powder 4 into the hopper 20, the powder 4 is engaged between the scraping plate 7 and the rotary plate body 10, and the scraping plate 7 and the deterrent plate 8. It is possible to prevent the inconvenience of being inserted.
In this way, when the powder 4 is packaged, the powder 4 does not remain between the members of the powder scraping device 5, so that the required packaging accuracy is ensured even when a small amount of powder 4 is packaged. can do.

  Further, since the rotary plate 6 and the scraping plate 7 are assembled as separate members, for example, when the damming body 11 or the elastic blade 22 is damaged by use (by sliding the groove bottom surface 3a), for example. Since each member can be maintained (replaced) separately, an increase in running cost can be suppressed.

  In the above embodiment, the spacers 23a and 23b are provided on the scraping plate 7. However, the present invention is not limited to this, and a member having a function corresponding to the spacer is provided on the side of the restraining plate 8 and the rotating plate body 10 and scraped by both members. The generation of the gap can also be prevented by pressing the plate 7 together.

The top view which shows schematic structure of the powder medicine packaging machine which shows embodiment of this invention Similarly, the main part enlarged plan view Same main part front view Similarly, FIG. 4 (a) is a side view of the scraping plate, (b) is a front view, and (c) is a rear view.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Powder medicine packaging machine, 2 ... Rotary table, 3 ... Groove, 4 ... Powder, 6 ... Rotating plate, 8 ... Deterrent plate, 10 ... Rotating plate main body, 12 ... Center hole, 13 ... Rotating body, 14 ... Insertion hole, DESCRIPTION OF SYMBOLS 15 ... Plane, 16, 17 ... Pin, 18 ... Radial outward end part, 20 ... Hopper, 22 ... Elastic blade, 23a, 23b ... Spacer, 24 ... End plate part, 25 ... Base end plate part, 28 ... Covering , 30 ... Projection, 31 ... Sheet part, 32 ... Support, 33 ... Groove, 34 ... Upstream side wall, 35 ... Support recess, 36 ... Recess, 40 ... Rotation transmission shaft, 45 ... End cap, 50 ... Drive device

Claims (6)

A powder scraping device for scraping powder particles received in a groove formed on a rotary table of a powder particle packaging machine, the rotary plate for damming the powder particles, and the rotary plate And a scraping plate for scraping the granular material dammed by the rotating plate separately from the groove,
A spacer is provided between the rotating plate and the scraping plate, and a spacer that is elastically compressed by the clamping force by providing a clamping force in a direction in which the rotating plate and the scraping plate are integrated is provided. The granular material scraping device of the granular material packaging machine.   An elastic blade for scraping powder particles in contact with the groove is provided at the tip of the scraping plate, and the spacer is provided on a side surface of the scraping plate integrally with the elastic blade. Item 2. A powder particle scraping device of the particle particle packaging machine according to Item 1.   The granular material scraping device of the granular material packaging machine according to claim 1, wherein an elastic body capable of contacting the groove is provided along the outer peripheral surface of the rotating plate.   The scraper plate is equipped with a deterrent plate separate from the scraper plate to prevent the granular material from flowing to the opposite side of the rotating plate when scraping the granular material with the scraper plate. And a spacer that is elastically compressed by the clamping force by applying a clamping force in a direction in which the suppression plate is integrated is provided between the scraping plate and the suppression plate. The granular material scraping apparatus of the granular material packaging machine in any one of Claim 1 thru | or 3.   5. The granular material scraping device of the granular material packaging machine according to claim 4, wherein the spacer is provided integrally with the elastic blade and provided on a side surface of the scraping plate.   The granular material scraping device of the granular material packaging machine according to any one of claims 1 to 5, wherein the spacer is made of silicon rubber.

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