JPS63240986A - Powder removing machine for solid matter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (1) Technical Field of the Invention The present invention relates to a powder remover for solid objects that removes foreign matter such as powder adhering to the outer surface of solid objects, and more specifically, a powder remover for removing foreign substances such as powder from the outer surface of a solid object. This relates to a dust remover for solid objects that automatically removes dust etc. adhering to the surface.

(2) Background of the technology In general, solid products such as tablets or capsules are press-formed using a bag forming machine after pulverizing and mixing the raw materials, and then a dusting machine (or sanding machine) is used to remove dust that adheres to the outer surface. etc. are removed, polished or polished.

An example of such a dust removing machine is disclosed in Japanese Patent No. 1036290 (Japanese Patent Publication No. 55-29743). This powder removing machine has an inlet on the lower upper surface of the slanted cylinder, and an outlet on the upper lower surface, and a guide coil is installed on the inner wall inside the cylinder, and a mesh cylinder is attached to the center of the cylinder. A brush shaft with a rotating brush that is rotated by a drive device is rotatably installed inside the cylinder, and a mesh tube is passed through the middle of the cylinder.
This structure is equipped with a powder outlet to take out the powder that has entered between the casing bodies.

(3) Problems with the Prior Art However, some of the tablets and the like from which the dust on the outer surface is removed by the above-mentioned dust removal machine are soft ones or tablets with a rectangular cross section, which are called irregularly shaped tablets. Using the dust removal machine with the above structure,
When dust removal is performed on these soft tablets or irregularly shaped tablets, there is a problem in that the dust removal effect is not sufficient.

In other words, the surface of soft tablets is scraped by the rotating brush of the brush shaft during the powder removal process, causing them to become thin and deformed, and the problem with irregularly shaped tablets is that the angular portions of the tablets break. . Therefore, we attempted to solve the above problem by shortening the length of the cylindrical body of the powder remover and reducing the brush polishing process in which the tablets come into sliding contact with the rotating brush of the brush shirt. Although it is effective against irregularly shaped tablets, it is not so effective against irregularly shaped tablets, and a fundamental solution to the above problem has not yet been obtained.

(4) Purpose of the Invention In view of the above-mentioned problems, the present invention has been developed to prevent deformation and damage of soft tablets, irregularly shaped tablets, and tablets or capsule tablets of different shapes, and to provide powder removal effects. The purpose of the present invention is to provide an excellent solid powder removal machine.

<5) Structure of the Invention In order to achieve the above object, the present invention has a solid material removing machine configured as follows.

An outer cylindrical body located on the outside and a drive means located inside the outer cylindrical body rotate in an arbitrary rotation direction and rotation speed with the axial direction of the outer cylindrical body as the rotation axis, and a large number of holes are formed in the wall. and a porous cylinder having a structure in which an inner wall surface is covered with a mesh mat, and a drive means located inside the porous cylinder that is different from the driving means of the porous cylinder, and the axial direction of the porous cylinder is arbitrarily set as the rotation axis. A dust removal mechanism is composed of a brush shaft having a rotating brush on its outer periphery, which rotates at a rotation speed of A porous cylinder is provided with an outlet for discharging solids from the other end, and the porous cylinder and brush shaft are rotated at a desired rotation speed to remove dust attached to the outer surface of the solids input from the input port. A dust removal machine for solids that is structured to remove the solids by sliding contact with a rotating brush and discharge the solids from which the powder adhering to the outer surface has been removed from the discharge port.

Additionally, a guide coil is provided along the inner wall of the porous cylinder of the dust removal mechanism.

<6> Examples of the invention Hereinafter, one embodiment of the present invention will be described based on the drawings.

In the figure, 1 is a cylindrical outer tube arranged on the outside, and 4 is the outer tube 1 (for example, about 30 cm in length and about 15 cm in diameter).
m) is a cylinder made of stainless steel, for example, which is rotatably arranged with the axial direction of the outer cylinder 1 as the rotation axis, and has a wall formed with many holes, and a net mat 5 made of a net material is arranged on the inner wall surface. Reference numeral 6 designates a brush shaft 6 having a structure in which a rotary brush 6a is disposed on the outer periphery of the perforated cylinder 4, which is rotatably disposed inside the perforated cylinder 4 with the axial direction of the perforated cylinder 4 as a rotation axis.

The outer cylinder 1, the perforated cylinder 4, and the brush shaft 6 constitute a dust removal mechanism of the solid material dust removal machine according to the present invention, as will be described later. The outer cylinder 1 is provided with a front end cover 2 and a rear end cover 3 at both ends thereof, and is fixed to a machine frame (not shown).

Both ends of the porous tube 4 are rotatably supported by the front end cover 2 and the rear end cover 3, and a ring gear 18 for rotating the porous tube 4 is provided on the outer periphery near one end. Binion 17 is fitted into 18. The pinion 17 is fixed to one end of the intermediate shaft 14, and a driven tooth type wheel 10b is fixed to the other end of the intermediate shaft 14, and its central portion is held by a shaft bearing case 15 containing a bearing 16. Further, on the inner surface of the mesh mat 5 of the porous tube 4, a guide coil 28 is provided along the inner wall of the porous tube n4 in order to more smoothly transfer the solids supplied into the porous tube 4. The thickness, number of turns, etc. of the guide coil 28 are appropriately selected depending on the type of solid material.

The brush shaft 6 is rotatably supported at both ends within the perforated tube 4 by a front shaft bearing sieve 7 and a rear shaft bearing joint 8, each of which has a built-in bearing 9 therein. The tip of the rotating brush 6a of the brush shaft 6 is formed so as to be in contact with the mesh mat 5 provided on the inner wall of the porous cylinder 4. In addition, the above-mentioned front shaft bearing sieve 7
In the rear bearing 1'28, 11 is a drive shaft, 12 is a socket, and 13 is a V-ring. A driven tooth type wheel 10a is disposed on the drive shaft 11. Further, the driven tooth type wheel 10b, the driven tooth type wheel 10a, etc. are protected by a gear cover 24.

The dust removal mechanism composed of the outer cylinder 1, the perforated cylinder 4, and the brush heads 71 to 6 is provided with an input port 25 for supplying solids at the front end of the perforated cylinder n4, and at the rear end of the perforated cylinder 4. A discharge port 26 is provided for discharging solid matter from the tank.

In addition, the input port 25 and υ[outlet 26 are connected to the front end upper surface of the outer n1 and the rear end lower surface of the outer Ml as shown in the figure, in order to smoothly introduce and discharge solids into the porous hole n4 rotating inside the outer nl. However, the input r] 25 is a porous n
Any material that can supply solids to the front end of outer n1 may be used, and is not limited to the upper surface of the front end of outer n1.
1, an opening may be provided in the porous tube 4, and solids may be intermittently supplied into the porous tube 4 each time the porous hole n4 rotates and reaches the lower part of the inlet. Of course. Further, on the lower surface of the outer cylinder 1, a powder outlet 27 having a damper 21 and an air intake adjustment band 22 is provided.
A dust collection box 20 is provided.

The brush shaft 6 and the perforated cylinder 4 are rotated by transmitting the driving force of drive means (not shown) such as variable speed motors provided individually to the driven toothed wheel 1ob and the driven toothed wheel 10a. , in any rotation direction and rotation speed.

In the powder remover having the above structure, the tablets, capsules, or other solids fed through the inlet 25 are
After falling into the rotating brush 6a of the brush lift 6 rotating in the brush shaft 4, it is pressed against the mesh mat 5 by centrifugal force, and while rotating, it is guided by the guide coil 28 by the spiral movement of the rotating brush 6a and advances in the discharge direction. Then, it is discharged from the discharge port 26. In addition, at this time, the powder remover is inserted into the input port 2.
If the discharge port 26 side is allowed to be sloped lower than the 5 side, it is effective to transfer the solids in the discharge direction.

The dust removed by the rotating brush 6a in the rotating perforated cylinder 4 passes through the mesh of the mesh mat 5 and the wall holes of the perforated cylinder 4, and passes through the suction device (not shown) attached to the end of the powder outlet 27. ), the dust collection box 20 is carried by the airflow flowing from the inlet 25 and the outlet 26 toward the powder outlet 27.
gathered nearby. The collected dust is sucked up from the powder outlet 27 by a dust collector (not shown).

Note that the rotational speed and direction of each of the porous tube 4 and the brush shaft 6 are appropriately selected depending on the type of solid material such as a tablet or a capsule. For example, in the case of soft tablets, irregularly shaped tablets, etc., the perforated tube 4 and the brush shaft 6 are rotated in the same direction and rotated at different speeds.
By reducing the relative rotational speed difference between the brush shaft 6 and the brush shaft 6, it is possible to avoid excessively scraping the soft tablet or damaging the corners of the irregularly shaped tablet. In addition, in the case of capsule tablets, by reversing the rotational direction of the perforated tube 4 and the rotational direction of the brush stroker foot 6, the relative rotational speed difference between the two can be increased and the powder removal effect and polishing effect can be improved. It becomes possible.

Note that the method of rotating the perforated cylinder 4 is not limited to the one-direction driving of the ring gear 18 and pinion 17 as shown in this embodiment, and other methods may also be used.

(7) As described in detail, according to the present invention, there is a brush stroke cost and fu! ~
Since the rotation speed and rotation direction of the perforated tube can be selected independently and arbitrarily, dust attached to solid objects such as irregularly shaped tablets and soft tablets can be automatically and continuously removed without damaging or deforming the solid objects. It has the excellent effect of being able to quickly and reliably remove powder adhering to solid objects.

[Brief explanation of drawings]

The figure does not show one embodiment of the present invention. FIG. 3 is a cross-sectional view of main parts. In the figure, 1...outer cylinder, 2...front end cover, 3...
Rear end lid, 4... Porous tube, 5... Net mat, 6...
... Brush shaft, 6a... Rotating brush, 7.
...Front shaft bearing tube, 8...Rear shaft bearing joint, 9, 16.
... Pole bearing, 10a, 10b ... Driven tooth type wheel, 11 ... Drive shaft, 12 ... Socket, 13 ... V ring, 14 ... Intermediate shaft, 1
5... Bearing tube, 17... Pinion, 18...
Ring gear, 19...Cam follower, 20...
Dust collection box, 21...damper, 22...air intake adjustment band, 23...take-in/j-plate, 24...gear cover, 25...inlet, 26・・Exhaust port, 2
7...Powder outlet, 28...Guide coil,

Claims (2)

[Claims] (1) An outer cylindrical body located on the outside, and a drive means located inside the outer cylindrical body that rotates in an arbitrary rotational direction and rotational speed with the axial direction of the outer cylindrical body as the rotation axis, and has a large number of holes in the wall. A porous cylindrical body having a structure in which a mesh mat is attached to the inner wall surface of the porous cylindrical body, and a driving means located inside the porous cylindrical body that is different from the driving means of the porous cylindrical body, the axial direction of the porous cylindrical body is rotated as a rotation axis. A brush shaft with a rotating brush on the outer periphery that rotates at a desired rotational speed constitutes a dust removal mechanism, and an inlet for introducing solid matter into one end of the porous cylinder into the dust removal mechanism, and a perforated cylinder. A solid matter dusting machine characterized by being provided with an outlet for discharging solid matter from the other end of the body. (2) The solid material dust removal machine according to claim (1), characterized in that a guide coil is provided along the inner wall of the porous cylinder of the dust removal mechanism.