JP5563240B2 - Transport device - Google Patents

Description

  In the present invention, when transporting an object to be transported such as a tablet with printing, the printing ink is peeled off, and finally, the peeled ink is attached to a portion other than a regular printing position on the transported object. The present invention relates to a conveying device to prevent.

  In the case of manufacturing a medicine, it is widely performed that characters, symbols, etc. are printed on the surface of tablets and capsules with ink in the printing process. And a packaging process is performed after printing. In the packaging process, tablets or the like are put into a conveying device such as a vibration type parts feeder. Due to the vibration of the vibration type parts feeder, the tablet or the like moves in the transfer region and falls from the punched hole of the vibration type parts feeder. Then, it passes through the tube, and is supplied to each of a number of holes formed in the PTP sheet. Finally, a cover film 93 is attached to the PTP sheet 92 so as to close the hole 91 as shown in FIG. Is done.

  However, the ink 95 may adhere to the tablets 94 or the like packaged in a PTP sheet or the like in addition to the regular printing 96 places. This is a problem that arises when printing ink is transferred from the tablet to the transfer area (surface) of the vibration type part feeder and the ink is applied again to the tablet or the like while the tablet or the like is being supplied.

  By the way, in a conveying apparatus such as a vibration type part feeder, it has been conventionally performed to mainly coat a plastic material on the transfer region (Patent Document 1). The main purpose of the coating is to prevent the tablets and the like from being broken or rubbed due to friction or impact during transfer. In order to achieve the object, in the invention of Patent Document 1, coating is performed using a material having a low coefficient of friction and Young's modulus.

JP 2001-170136 A

  However, the existing coatings cannot sufficiently prevent ink transfer. As in the case of Patent Document 1, the inventors of the present invention have continued research on the idea that the transfer of ink can be prevented by reducing the slip resistance in the transfer region of the transport device. However, since a good result was not obtained, the present condition analysis was tried.

  In the printing process, dark ink is printed thickly on tablets or the like for the purpose of obtaining clear prints. If the ink is completely cured to the inside, it should not be transferred to the transfer region of the transport device, but it is difficult to confirm that the ink is completely cured. Therefore, if the printed surface is cured, tablets or the like are used in the packaging process. Then, in the packaging process, vibration is generated from the vibration type part feeder which is a conveying device, so that the print is partly peeled off and the ink is transferred to the transfer area of the vibration type part feeder.

  Based on this analysis of the present situation, the present inventors decided not to transfer the ink to the transfer area from another viewpoint, not from the viewpoint of smoothing the transfer area of the transport device.

  The present invention is a transport device for moving a solid matter with a print on the surface thereof in a transport region of a transport unit, and a cloth covering the surface is fixed to the transport region.

  The type of yarn used for the cloth is not limited, and may be, for example, short fiber yarn. Further, the type of solid matter is not limited, and for example, an electronic component may be used. However, for applications where you want to avoid the fabric fibers sticking to the solid material when moving over the fabric, for example, if the solid material is a drug, the fabric must be made of long fibers. Is desirable.

  The cloth may be fixed to the transfer area in a non-detachable manner, but it is desirable that the cloth be easily replaced when it is soiled by solid printing ink. That is, it is desirable that the cloth is detachably fixed to the transfer area.

  The transport device may be any device as long as the solid material moves on the transfer region of the transport unit, and may be a chute, for example. However, it is desirable from the viewpoint of the effect that a cloth is attached to a print which is subjected to a lot of vibration during movement and the printed matter on the solid matter is easily peeled off. For example, this is the case where the conveying unit is a bowl of a vibratory parts feeder.

  In the present invention, the transfer area of the transport section is covered with a cloth. Since the cloth has fine irregularities, the contact area between the print on the conveyed object and the cloth is reduced, and as a result, the printing ink is difficult to transfer to the cloth, and the ink is conveyed from the cloth accordingly. It becomes difficult to stick to things. Further, even if the ink is transferred to the cloth, the ink gets into the dent to some extent, so that it becomes difficult for the ink to adhere to the conveyed object from the cloth. The present invention uses a cloth that is flat at first glance, but has fine irregularities, and from the viewpoint of reducing the contact area without damaging the object to be transported, the ink is transferred to the transfer region of the transport device. Decided to prevent.

  In addition, when the fabric is made of yarns made of long fibers, it is possible to avoid as much as possible the fabric fibers from sticking to the solid drug when moving on the cloth, improving the quality of the drug. Can be achieved.

  Furthermore, when the cloth is detachably fixed to the transfer area, it is easy to replace the cloth when the cloth is soiled by the solid printing ink.

  Further, when the conveying unit is a bowl of a vibratory parts feeder, the solid matter is transferred by vibration, so that it can be said that it is applied to an application in which printing is easily peeled off. In this way, when the cloth is fixed to the vibrating bowl, the effect of making it difficult for the print to peel off from the solid matter can be greatly received.

It is a perspective view which shows the conveying apparatus of this invention. It is a perspective view which shows the use condition of the conveying apparatus of this invention. It is explanatory drawing which shows the state in which the stain | pollution | contamination of the ink has adhered to the tablet packaged with the PTP sheet etc.

  1 and 2 show an example of a transport apparatus to which the present invention is applied. The conveying device 1 is a vibration type part feeder, and a cloth 3 is fixed to almost the entire surface of a transfer area 2a of a bowl as a conveying unit 2 thereof.

  The bowl 2 is a metal plate shaped like a tray, and has a bottom wall 4 that is circular in plan view, a ring-shaped peripheral wall 5 that rises along the entire outer periphery of the bottom wall 4, and an outer periphery at the upper end of the peripheral wall 5. Is provided with a flange wall 6 protruding horizontally.

  The bottom wall 4 has a tapered shape with a gentle slope that gradually increases from the outer periphery toward the central portion 11. The center portion 11 of the bottom wall 4 has a substantially horizontal disk shape, and the bowl 2 is fixed by fastening the center of the disk to a lower support portion (not shown) with a bolt B. Further, the bottom wall 4 is such that the surface of the tapered portion 12 becomes the aforementioned transfer region 2a, and the article W to be transported moves on the transfer region 2a. In addition, the transfer region 2 a of the bottom wall 4 is provided with a plurality of punched holes 13 that serve as outlets of the conveyed object W at intervals from the outer peripheral side toward the central portion 11. Further, a plurality of guide pieces 14 for guiding the object to be conveyed W to each hole 13 stand in the vicinity of each hole 13 and in parallel with the outer peripheral side and the inner peripheral side of the hole 13 in the transfer region 2a. It is provided.

  The cloth 3 is detachably attached to the entire surface of the transfer region 2 a of the bottom wall 4 with a double-sided adhesive tape 7 so as not to block the top of the punched hole 13. In the figure, the cloth 3 is not pasted on the guide piece 14 and the surface in the vicinity thereof even in the transfer region 2a. The cloth 3 was a dust-free cloth 3 used in a clean room. This is a woven fabric made of polyester filament yarn.

  A solid material, here a disc-shaped tablet, is used for the article to be transported W to be fed into the vibration type part feeder 1 described above. The tablet has a print M for identifying a product or the like on at least one of the front and back surfaces of the circular shape.

  The above-described vibrating parts feeder 1 transports the tablets W in the following manner. Above the vibrating parts feeder 1, a chute 31 into which the tablets W are put is arranged. The tablet W is dropped from the chute 31 and is put into the vibrating parts feeder 1. The tablet W falls on the cloth 3 and moves toward the extraction hole 13 that is the outlet by the vibration of the vibration type parts feeder 1. And the tablet W is guide | induced between a pair of guide pieces 14, and a body posture is prepared by advancing between them, and is discharged | emitted from the extraction hole 13. FIG. And it supplies to the hole of a PTP sheet through the soft tube which is not shown in figure.

  When the cloth 3 of the dust-free garment was affixed to the transfer region 2a of the vibratory parts feeder 1, it was confirmed that the ink was difficult to be transferred to the tablet packaged in a PTP sheet or the like under the following conditions. A single PTP sheet in which 15 tablets are packaged is used. One lot consists of 600,000 tablets. As a result of packaging the tablets W with one PTP sheet for one lot, tablets with ink transferred at a rate of about 0.1% per lot were generated.

  In the case of the conventional product (the transfer region 2a is coated with nylon), tablets with ink transferred were generated at a rate of about 3.07% per 1/4 lot.

  Also, paste each of vinyl chloride sheet (thickness 0.35mm), polycarbonate sheet (thickness 0.5mm, # 800 polishing), and Teflon (registered trademark) sheet (thickness 0.09mm) on transfer area 2a and confirm the effect As a result, tablets with ink transferred were generated at the same rate as the conventional product. These materials are all in the form of a sheet and have no irregularities. In other words, it is intended to reduce the slip resistance, and as a result, it has been found that no effect can be obtained even if the surface is smoothed.

  The present invention is not limited to the above embodiment. For example, a larger area for applying the cloth 3 is desirable for enhancing the effect, but even if it is narrow, an effect can be expected. Further, silicon, vinyl chloride, polypropylene, polyester, or the like may be used as a raw material for the yarn of the cloth 3. Furthermore, the double-sided pressure-sensitive adhesive tape 7 may be applied to the entire back surface of the cloth 3 or only to the edge. In addition, as for the conveyed product W, a capsule etc. are mentioned besides a tablet as a chemical | medical agent.

1 Conveying device (vibrating parts feeder) 2 Conveying unit (bowl)
2a transfer area 3 cloth 4 bottom wall 5 peripheral wall 6 wall 7 double-sided adhesive tape 11 central part 12 taper-shaped part 13 hole 14 guide piece 31 chute W transported object (solid matter, tablet) B bolt M printing 91 hole 92PTP Sheet 93 cover film 94 tablets 95 ink 96 printing

Claims (4)

A transport device (1) that moves a transfer region (2a) of a transport unit (2) with a medicine as a solid (W) having a printing (M) on the surface,
A conveying device characterized in that a cloth (3) made of yarn made of long fibers is fixed in a state of covering the surface of the transfer region (2a) . 2. The conveying device according to claim 1 , wherein the cloth (3) is a fabric that is flat at first and has fine irregularities .   3. The transport device according to claim 1, wherein the cloth (3) is detachably fixed to the transfer area (2a).   4. The transport apparatus according to claim 1, wherein the transport section (2) is a bowl of a vibratory parts feeder.

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