JPS644466B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a drug packaging machine.

Conventional drug packaging machines use a cut-and-seal type line seal system that heat-seals the separation part of each package and allows cutting at this heat-sealed part, and a line seal system that seals the separation part of each package with a predetermined seal. A face seal method is known in which the seals are heat-sealed using a wide hot plate and a perforation-like cutting line is provided at the center of each seal width.

However, in the line seal method, since the seal part is linear, it has the advantage of being able to instantaneously seal by applying electricity when forming the divided packages, but it is necessary to always keep the temperature for heat-sealing the divided part of the divided packages at an appropriate temperature. It is necessary to maintain the
If the temperature is insufficient, a reliable heat-sealing action cannot be performed over the entire sealed area, resulting in partial unfused areas, and the cut line is not properly formed, resulting in a seamless bandage. As a result,
On the other hand, if the temperature rises too much, the cutting line will be formed more reliably than necessary, resulting in individual sachets being separated, and there will be a problem that it will not be possible to form continuous sachets.

The one-sided seal type does not have the defect that the packets fall apart even if the temperature rises too much like the line seal type mentioned above, but the conventional one-sided seal type packaging machine uses ordinary metal that is not itself a heating element. Dozens of window holes for packaging are made in the plate, and the metal frame has a heating frame that transmits the temperature from the heating wire from the back side, so the film is heated between the heating frame and the holding frame. When heat-sealing a packaging compartment, even if the heating wire is energized, the heating frame itself cannot immediately reach a sealable temperature over the entire surface, and it takes time to reach a sufficient temperature. Therefore, in this type of sealing method, it is necessary to keep the packaged film crimped by the heating frame and the holding frame for several tens of seconds during the film fusing operation, and the work efficiency is lower than that of the line sealing method. The problem is that there is no.

In view of the problems of the conventional drug packaging machine as described above, the present invention solves the inefficiency that is the drawback of the conventional surface seal method, although it belongs to the surface seal method, and provides a superheat seal similar to the line seal method. The purpose of this invention is to provide a drug packaging machine using an improved surface sealing method that enables the following.

To describe in detail the embodiments of the present invention shown in the drawings, FIG. 1 is a plan view of a heating frame 1 in a drug packaging machine according to the present invention, and FIG. 2 is a hot plate constituting the heating frame 1 of FIG. 2 is shown. The heating plate 2 includes a heating frame plate 3 made of a plurality of heating elements such as nichrome plates,
A support frame 4 made of synthetic resin having frame holes for fixing these heat-generating frame plates 3, and a support frame 4 for forming perforations fixed to the support frame 4 so as to be arranged around each of the heat-generating frame plates 3 described above. It consists of a serrated cutting blade 5.

As shown in FIG. 3, the heat-generating frame plate 3 constituting the hot plate 2 is made by punching out a frame plate from a nichrome plate with a pair of connecting pieces 6 protruding from the inner periphery facing each other. At the same time, both inner and outer circumferential edges 7 and 8 of the portion indicated by dotted lines are bent in the same manner toward the back side, and these two circumferential edges 7 and 8 have their tips aligned with each other as shown in FIG. It is bent in an inclined shape so that the parts are close to each other, and the part between the peripheral edges 7 and 8 on both sides is formed as the surface of the heat generating frame plate.

Such heat-generating frame plates 3 are arranged in groups of three with a gap 9 between them, as shown in FIG.
Each heating frame plate 3 is integrally fixed by a support frame 4 made of synthetic resin such that only the frame surface is exposed to the outside, and both inner and outer circumferential edges 7 and 8 are embedded inside, respectively. Further, the adjacent connection pieces 6 of each heat generating frame plate 3 are overlapped and connected to each other on the back surface of the support frame 4.

The cutting blade 5 arranged around the heat generating frame plate 3 is a second
As shown in the figure, for example, the heating plate 2 passes from one side of the left heating frame plate 3 through the gap 9 between it and the central heating frame plate 3 so that its lower edge is embedded in the support frame 4. After being arranged along one side opposite to the central heat generating frame plate 3, the left side heat generating frame plate 3 passes through the gap 9 between the center heat generating frame plate 3 and the right heat generating frame plate 3. They are arranged in a zigzag pattern so as to reach the same side as the side on which the frame plate 3 is arranged, and are screwed to the side surface of the hot plate 2, and the ends 5 ₁ and 5 ₂ are energized at both end faces of the hot plate 2 as described below. Used as a terminal.

A plurality of heating plates 2 thus constructed are arranged in parallel with each other as shown in FIG. By integrally fixing the connecting pieces 6 to the overlapping joints with screws 11, the cutting strips 5 are formed around all the heat generating frame plates 3 as shown in FIG.

As a current supply circuit, the respective hot plates 2 ₁ to 2 _o are connected in series via a cutting blade 5, as shown in FIG. That is, as described above, the hot plates 2 each have a cutting blade 5.
When ₁ to 2 _o are arranged in parallel, the hot plate ₂ on the left side of Figure 1
The heating frame plate side parts at both ends and the heating plate 2 _o at the right end.
Since there are no cutting blades on the sides of the central heating frame plate, there are auxiliary cutting blades 51, 52, 5 in these parts.
Install 3. Auxiliary cutting blade 5 connected to terminal A
1 and 52 are connected to each other, and one end of the auxiliary cutting blade 52 is connected to the connecting piece 6 ₁ of the heating frame plate 3 at one end of the left heating plate 2 ₁ . Connect the other connecting piece 6 ₂ of the left end hot plate 2 ₁ to one end 5 ₁ of the cutting blade 5 on the hot plate 2 ₁ , and connect the other end 5 ₂ of the cutting blade 5 to the second row hot plate 2 . At the same _time , connect the other connecting piece 6 ₂ of the _hot plate 2 ₂ to one end 5 ₁ of the cutting blade 5 of the hot plate 2 ₂ , and then connect the right end heat in the same way. Repeat the connections sequentially until plate 2 _o .
One end 5 ₂ of the cutting blade 5 on the right-end hot plate 2 _o is connected to an auxiliary cutting blade 53 provided at the center of the hot plate 2 _o ,
The auxiliary cutting blade 53 and terminal B are connected.

As described above, in the drug packaging machine according to the present invention, the heating frame is configured such that the heating frame plate 3 made of a heating element such as a nichrome plate is attached to the synthetic resin support frame 4 with a gap in between, so that the entire heating frame is energized. By doing so, each heat-generating frame plate 3 can generate heat to the required temperature to fuse the films in an extremely short period of time, greatly increasing the efficiency of the fusing operation compared to the conventional face-seal type packaging machine. It has the effect of being able to improve. Of course, since the surface of the heat-generating frame plate 3 has a predetermined sealing width, it has the advantage of being able to securely and seamlessly heat-seal the periphery of the package with a predetermined width, similar to the conventional surface sealing method.

In addition, the respective heat generating frame plates 3 are attached at intervals from each other, and a serrated cutting blade 5 made of a heating element similar to that of the heat generating frame plate 3 is arranged in this gap, so that the cutting blade 5 is cut when energized. 5 also generates heat, making it possible to form reliable perforations between each package.
Furthermore, each heat-generating frame plate 3 is integrally attached to the synthetic resin support frame with the surface exposed and a portion embedded, so that a reliable sealing action can be performed without detachment. .

Therefore, the drug packaging machine according to the present invention eliminates the inefficiency of the conventional surface seal method in that it takes time to reach a temperature that can be fused after energization, and the predetermined fusion width by the surface seal method is eliminated. This has the effect that it is possible to instantaneously form a sealing surface with a sealing surface, and that it is possible to efficiently obtain completely sealed sachets with no cuts in the fused portion.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the heating frame of the drug packaging machine according to the present invention, Fig. 2 is a plan view of the heating plate forming the heating frame, and Fig. 3 is an original plate of the heating frame forming the heating plate. 4 is a sectional view taken along the - line in FIG. 2, and FIG. 5 is a sectional view taken along the - line in FIG. 1. In the figure, 1: heating frame, 2: heating plate, 3: heat generating frame plate, 4: synthetic resin support frame, 5: serrated cutting blade, 6: connecting piece, 7, 8: peripheral edges on both sides of heat generating frame plate, 9 : Gap, 1
0: Insulating plate, 51, 52, 53: Auxiliary cutting blade.

Claims (1)

[Scope of Claims] 1. A plurality of heat-generating frame plates made of heat-generating elements such as nichrome plates are fixed so that the frame surfaces are exposed to the surface of each frame hole in a synthetic resin support frame with gaps between them, A drug component characterized by having a heating frame in which a serrated cutting blade for forming perforations made of a heating element similar to that of the heating frame plates is embedded in the gap between each heating frame plate in the supporting frame. wrapping machine. 2 A plurality of heat-generating frame plates are attached to each frame hole of one synthetic resin support frame, and the respective heat-generating frame plates are connected to each other via connecting pieces, and the serrated cutting blade is connected to the heat-generating frame. 2. The drug packaging machine according to claim 1, wherein the heating frame is constructed by arranging a plurality of heating plates arranged in a zigzag manner around the plate. 3. A connecting piece at one end of one hot plate is connected to one end of a cutting blade provided on the hot plate, and the other end of the cutting blade is connected to a connecting piece at one end of an adjacent hot plate. The drug packaging machine according to claim 1 or 2, wherein an energizing circuit is constructed throughout the heating frame. 4. Each of the heating frame plates is bent in an inclined shape so that the inner and outer edges thereof are directed toward the back side, and the edges of both sides approach each other, and the inclined edges are embedded in a synthetic resin support frame to support the support frame. A drug packaging machine according to claim 1, which is fixed to a frame.