JPS6327122B2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a method for manufacturing an alignment plate for a tablet feeder that is rotatably installed at the bottom of a container containing a large number of tablets having a length a, a width b, and a thickness c. It is related to.

[Prior Art] Generally, when this type of alignment plate is made of synthetic resin molded products, tablets have various sizes with various lengths a, widths b, and thicknesses c. Individual molds must be prepared, and each time a pharmaceutical manufacturer develops a new tablet size, a new mold must be created to fit it. For example, if there are several 10 types of tablets, several 10 types of molds are required, and it is necessary to be able to constantly manufacture new molds, making the cost of molds extremely high. In this case, the only option is to reduce the number of types of molds, which has the disadvantage that the types of tablets that can be handled are limited depending on the size of the tablets.

[Object of the Invention] The present invention aims to eliminate the above-mentioned drawbacks, to provide a method for manufacturing an aligning plate for a tablet feeder, which minimizes the cost of molds, and can handle tablets of various sizes. This is the purpose.

[Structure of the Invention] In order to achieve the above object, the present invention has a length a,
A method for manufacturing a tablet feeder alignment plate rotatably installed at the bottom of a container containing a large number of tablets having a width b and a thickness c, the peripheral surface being circular, the top surface sloping downward from the center, and A master disc having a plurality of steps in the circumferential direction and a bottom surface with a rotational force transmitting part in the center is molded using a mold, and the circumferential surface of this master disc is shaped into a radius leaving a height smaller than a from the bottom surface. A cylindrical surface is formed by cutting to a depth slightly larger than c in the direction, and a groove is formed by cutting the remaining bottom flange in the circumferential direction to a depth that reaches the cylindrical surface with a width slightly larger than b. , the bottom flange has a structure in which a large number of these grooves are formed. Further, in this invention, prior to forming the cylindrical surface and the grooves on the circumferential surface of the master disc, the circumference of the master disc is shaved off until it has an outer diameter that is slightly smaller than the inner diameter of the cylindrical bottom of the container, thereby forming a circular peripheral surface. It has a structure.

[Embodiments of the Invention] Hereinafter, embodiments of the invention shown in the drawings will be described.

First, a master disk 1 having a shape shown by solid lines in FIGS. 1 to 4 is molded using a mold using a synthetic resin of a type that complies with the Food Sanitation Act as a raw material. In other words, master 1 is
The circumferential surface 2 has a circular shape, the upper surface slopes downward from the center 3, and is divided in the circumferential direction and at each boundary of divided portions 4, 4, 4, which are each inclined in the same direction along the circumferential direction. Formed step 5, 5, 5
A boss 6 and an annular protrusion 7 into which a suitable rotating shaft is fitted are formed on the bottom surface. Also master 1
The mold for molding must have such precision that the center line of the boss 6 correctly passes through the center 3 of the upper surface of the master, and the peripheral surface 2 is formed on a predetermined radius around this. On the surface in contact with the top surface of the master,
The top surface of the master is plated so that it becomes a smooth surface.

Once such a master disk 1 is obtained, the annular projection 7 is flattened so as to be perpendicular to the center line, and then mounted on a lathe using this surface as a reference surface, and the upper surface is pressed with a soft member. While (thereby centering) the circumferential surface 2,
As shown in Fig. 7, the cylindrical surface 8 is formed by lathe cutting in the radial direction to a depth slightly larger than c while leaving a height smaller than a from the bottom surface, and furthermore, the boundary edge between the cylindrical surface 8 and the top surface is In addition to smooth surface treatment, the boundary edges between the upper and lower surfaces of the bottom flange 9 and the peripheral surface that remain uncut are chamfered.

Next, the bottom flange 9 is attached to the cylindrical surface 8 with a width slightly larger than b in the circumferential direction as shown in FIGS.
The groove 10 is formed by end milling to a depth that reaches the bottom flange 9.
uncut portion 1 with a width smaller than b in the circumferential direction.
A large number of uncut portions 1, 11, . As a result, an alignment board 12 is obtained.

In addition, if the mold does not have enough precision to form the circumferential surface 2 on a predetermined radius from the center line, or if the mold cannot achieve sufficient precision due to the inner diameter of the container to which it is attached, The master 1' is the first to
As shown by the chain line in Figure 4, the diameter is formed to be larger than the required diameter. Then, the annular protrusion 7 of this master disk 1' is flattened so as to be perpendicular to the center line, and then mounted on a lathe using this surface as a reference plane.
Then, while pressing the upper surface with a soft member (thereby centering it), the periphery of the original disk 1' is cut off by lathe processing to form a peripheral surface 2 of a predetermined diameter. Subsequently, the cylindrical surface 8 and the groove 1 are formed in the same manner as above.
By sequentially forming 0, 10, . . . , an alignment board 12 will be obtained.

The alignment board 12 obtained in this way is the first
It is used by being attached to a container 21 as shown in Figures 1 and 12. That is, in the container 21, a cylindrical portion 22 having an inner diameter slightly larger than the outer diameter of the alignment plate 12 is provided upright from a bottom plate 23, and a spline shaft is provided in a central hole 24 of the bottom plate 23 to be detachably connected to a rotating shaft of a motor (not shown). 25 is inserted from below and a boss 6 is placed on top of it.
is fixed, so that the alignment plate 12 is rotatably attached to the bottom of the container 21, and among the slits 25, 26, . A partition plate 28 that covers the upper part of the groove 10 located directly above the supply port 27 formed in the bottom plate 23 is inserted and fixed into the slit 26, so that the alignment plate 12 can move the container 21 as it rotates. Supply port 27 for tablets inside
One tablet at a time will be discharged.

[Effects of the Invention] Since the present invention is configured as described above, it is only necessary to have a mold for molding the master, and therefore the cost of the mold can be minimized, and the height, width, and height of the groove can be kept to a minimum. The depth can be processed in any way depending on the length (a), width (b), and thickness (c) of the tablet being handled, so the master is versatile regardless of the size of the tablet. In addition, even if a new size of tablet is developed by a pharmaceutical manufacturer, it has excellent effects such as being able to handle it by machining the master without creating a new mold. In addition to the above-mentioned effects, the second invention has the advantage that the outer diameter of the alignment plate can be set with high accuracy with respect to the inner diameter of the cylindrical bottom of the container.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIGS. 1 to 4 are a plan view, a side view, a sectional view, and a bottom view of a master, respectively, and FIGS. 5 to 7 are a plan view and a side view of a state in which a cylindrical surface is formed, respectively. Figures and bottom views, Nos. 8-10
The figures are a plan view, a side view, and a bottom view of the alignment plate, respectively, and FIGS. 11 and 12 are a longitudinal sectional view and a plan view, respectively, showing an example of a tablet feeder using the alignment plate. 1, 1'...Master disc, 2...Surrounding surface, 3...Center, 4...Divided portion, 5...Step, 6...Boss, 7...Annular protrusion, 8
...Cylindrical surface, 9...Bottom flange, 10...Groove, 11...
Uncut portion, 12... alignment board, 21... container, 22...
Cylindrical portion, 23...bottom, 24...center hole, 25...spline shaft, 26...slit, 27...supply port, 28
...Partition board.

Claims (1)

[Claims] 1. A method for manufacturing a tablet feeder alignment plate rotatably installed at the bottom of a container containing a large number of tablets each having a length a, a width b, and a thickness c, the arranging plate having a circular peripheral surface. , a master disk whose top surface slopes downward from the center and has a plurality of steps in the circumferential direction, and whose bottom surface has a rotational force transmitting part in the center is molded with a mold, and the circumferential surface of this master disk is A cylindrical surface is formed by cutting off the bottom surface to a depth slightly larger than c in the radial direction while leaving a height smaller than a, and the remaining bottom flange is cut into the cylindrical surface with a width slightly larger than b in the circumferential direction. 1. A method for manufacturing an alignment plate for a tablet feeder, characterized in that the grooves are formed by cutting to a depth of . 2. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein a and b are equal to each other. 3. The method for manufacturing an alignment board for a tablet feeder according to claim 1, wherein the master disc is made of synthetic resin. 4. The tablet feeder according to claim 1, wherein the step is formed at each boundary of a plurality of divided portions in which the upper surface of the master is divided in the circumferential direction and each divided portion is inclined in the same direction along the circumferential direction. Method of manufacturing an alignment board. 5. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein the rotational force transmitting portion comprises a boss into which a rotating shaft is fitted. 6. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein a surface of the mold that is in contact with the upper surface of the master is plated so that the upper surface of the master becomes a smooth surface. 7. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein the shaving to form the cylindrical surface is performed by lathe processing. 8. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein the cutting to form each groove is performed by end milling. 9. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein the grooves are formed at equal intervals in the circumferential direction of the bottom flange. 10 The groove extends b in the circumferential direction of the bottom flange.
2. The method for manufacturing a tablet feeder alignment plate according to claim 1, wherein uncut portions having a smaller width are formed at equal intervals. 11 It is rotatably installed at the cylindrical bottom of a container containing a large number of tablets of length a, width b, and thickness c, and as it rotates, the tablets are discharged one by one from the supply port on the bottom of the container. A method for manufacturing an alignment plate for a tablet feeder, in which a master plate having a top surface sloped downward from the center, a plurality of steps in the circumferential direction, and a bottom surface having a rotational force transmitting part in the center is manufactured by using a metal plate. The periphery of this master disc is formed with a mold, and the circumference of the master disk is shaved off until it has an outer diameter slightly smaller than the inner diameter of the bottom of the container, centering on the rotational force transmission part, to form a circular circumferential surface, and this circumferential surface is cut from the bottom surface. A cylindrical surface is formed by cutting off a depth slightly larger than c in the radial direction, leaving a height smaller than a, and the remaining bottom flange reaches the cylindrical surface with a width slightly larger than b in the circumferential direction. A method for manufacturing an alignment plate for a tablet feeder, characterized in that grooves are formed by cutting to a depth, and a large number of these grooves are formed on the bottom flange. 12. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein a and b are equal to each other. 13. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein the master disk is made of synthetic resin. 14. The tablet feeder according to claim 11, wherein the step is formed at each boundary of a plurality of divided portions in which the upper surface of the master is divided in the circumferential direction and each divided portion is inclined in the same direction along the circumferential direction. Method of manufacturing an alignment board. 15. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein the rotational force transmitting portion comprises a boss into which a rotating shaft is fitted. 16. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein a surface of the mold that is in contact with the upper surface of the master is plated so that the upper surface of the master becomes a smooth surface. 17. The method for manufacturing a tablet feeder alignment machine according to claim 11, wherein the cutting to form the peripheral surface is performed by lathe processing. 18. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein the shaving to form the cylindrical surface is performed by lathe processing. 19. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein the scraping to form each groove is performed by end milling. 20. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein the grooves are formed at equal intervals in the circumferential direction of the bottom flange. 21 The groove extends b in the circumferential direction of the bottom flange.
12. The method for manufacturing a tablet feeder alignment plate according to claim 11, wherein uncut portions having a smaller width are formed at equal intervals.