Medicinal patch machine

Abstract

Medicinal plaster machine, comprising a machine stand, characterized in that a drug mass suction and application device, a drug layer compression device and a conveyor device are attached to the machine stand, wherein - the drug mass suction and application device comprises an upper base support, an intermediate plate and a lower base support, wherein - a suction and application chamber is formed in the upper base support, in the bottom area of ​​which a first through-hole and a second through-hole are provided, - a third through-hole and a fourth through-hole are formed in the intermediate plate and a fifth through-hole and a sixth through-hole are formed in the lower base support, - the upper base support and the lower base support are connected to each other, with an intermediate sliding channel being formed at the connection point, - the first through-hole is opposite the fifth through-hole, while the second through-hole is opposite the sixth through-hole, - the intermediate plate is located within the intermediate sliding channel and is connected to a first drive device, - a suction and application piston is provided within the suction and application chamber, which is connected to a second drive device, - the drug layer compression molding device comprises a gear rod connected at one end to a third drive device and at the other end to a compression molding plate, wherein the gear rod and the compression molding plate are externally surrounded by a locking hood.

Description

Field of the invention

[0001] The present invention relates to a device, in particular a medicinal patch machine. Technical background

[0002] Today, a medicated plaster refers, among other things, to a flexible, adhesive preparation for application to the skin and usually comprises a carrier material, a healing ointment applied to the carrier material, and a release paper. The healing ointment itself is viscous. The carrier material may also be coated with an adhesive. The conventional production of medicated plasters is usually done manually. A specific amount of healing ointment is applied to the carrier material, then pressed into a flat layer and finally covered with a release paper. When a medicated plaster is manufactured using a machine, these process steps are usually also carried out. However, with existing devices, the amount of healing ointment applied to the carrier material is difficult to control.Furthermore, when molding the healing ointment into a flat layer, insufficient formability is to be expected, which leads to an uneven thickness of the drug layer.

[0003] For the state of the art, reference is made to CN 2 06 228 619 U. Disclosure of the invention

[0004] The object of the present invention is to provide a medicinal plaster machine that allows a precisely dosed application of healing ointment and is suitable for the production of different medicinal plasters with different medicinal substance contents, whereby the medicinal substance layers obtained thereby have a consistent shape and a uniform thickness in order to offer a high level of user comfort.

[0005] To solve this problem, the invention proposes the following embodiments: A medicinal patch machine comprises a machine stand and is characterized in that a medicinal mass suction and application device, a medicinal substance layer compression molding device and a conveying device are attached to the machine stand.

[0006] The drug mass suction and application device comprises an upper base support, an intermediate plate, and a lower base support. A suction and application chamber is formed in the upper base support, in the bottom region of which a first through-bore and a second through-bore are provided. Furthermore, a third through-bore and a fourth through-bore are formed in the intermediate plate, and a fifth through-bore and a sixth through-bore are formed in the lower base support. Furthermore, the upper base support and the lower base support are connected to one another, with an intermediate sliding channel formed at the connection point. The first through-bore is opposite the fifth through-bore, while the second through-bore is opposite the sixth through-bore. The intermediate plate is located within the intermediate sliding channel and is connected to a first drive device.Within the suction and application chamber, a suction and application piston is provided, which is connected to a second drive device. The drug layer compression device comprises a gear rod connected at one end to a third drive device and at the other end to a compression plate. The gear rod and the compression plate are externally enclosed by a locking cap.

[0007] Preferably, a spring is mounted on the gear rod, which is attached at one end to the gear rod and at the other end to the locking cap.

[0008] It is preferably provided that in the vicinity of the suction and application chamber of the upper base support there is a heating chamber in which a radiator is installed.

[0009] It is preferably provided that a sealing chamber with a first opening and a second opening is located within the compression molding plate, while a first through groove associated with the first opening and a second through groove associated with the second opening are formed in the locking hood.

[0010] It is preferably provided that the conveying device comprises a first unwinder, a second unwinder, a tension rod and a first winder, and that a hob cutting device is further arranged on the machine stand.

[0011] It is preferably provided that a seventh through-bore is formed in the lower base support, which is connected at one end to the fifth through-bore.

[0012] It is preferably provided that the first drive device, the second drive device and the third drive device are all designed as cylinders or hydraulic cylinders.

[0013] During operation of the device according to the invention, the first unwinder serves to dispense a carrier material and the second unwinder serves to dispense a release paper, while the tension rod is used to tension and deflect the carrier material and the release paper, and the conveyor roller is used to move the carrier material and the release paper. In addition, the sixth through-hole is connected to a drug mass storage device, while the seventh through-hole is connected via a line to a gas pressure valve. The intermediate plate can optionally connect the first through-hole to the fifth through-hole or the second through-hole to the sixth through-hole. When the second and sixth through-holes are connected to each other, the suction and application piston moves upward to suck the drug mass into the suction and application chamber.If, however, the first and fifth through-holes are connected, the second through-hole is closed by the intermediate plate, and the suction and application piston moves downward, forcing the healing ointment out of the suction and application chamber. High-pressure air flows through the seventh through-hole to completely discharge the healing ointment onto the underlying carrier material. The compression plate and locking cap are then moved downward by the gear rod until the locking cap encloses the drug mass from the outside. The drug mass is pressed into a flat layer by the compression plate and cooled in this form before being cut off as a medicinal plaster. Presentation of the illustrations

[0014] It shows Fig. 1 the schematic structure of the invention, Fig. 2 the schematic structure of a drug mass suction and application device and Fig. 3 the schematic structure of a drug layer compression molding device. Concrete embodiments

[0015] The invention is described in more detail below with reference to the attached drawings.

[0016] As in Fig. 1, Fig. 2 and Fig.3, the medicinal plaster machine according to the invention has a machine stand 1 to which a conveyor device for carrier material and release paper is attached. The conveyor device comprises a first unwinder 2 for receiving a roll of carrier material, below which a tension rod 3 is arranged for deflecting the carrier material in the horizontal direction, and a second unwinder 4 for receiving a roll of release paper, below which a tension rod 5 is arranged, which serves to support the carrier material and the release paper and to connect the carrier material and the release paper to one another, in order to then be cut off as a medicinal plaster in a hob cutter cutting device 6, wherein the remaining edges are rewound onto a first winder 7.Located on the machine frame 1 is a drug mass suction and application device 8, which sucks in a drug mass from a drug mass storage device (not shown) and then applies it to a carrier material underneath. For this purpose, the drug mass suction and application device comprises an upper base support 81, an intermediate plate 82, and a lower base support 83. A circular-cylindrical suction and application chamber 811 is formed in the upper base support 81, within which a suction and application piston 85 is located, which is connected to a second cylinder 86 via a connecting rod 87.A nut 88 is arranged on the connecting rod 87. By adjusting the position of the nut 88 in the vertical direction, the extent of movement of the connecting rod and thus the travel distance of the suction and application piston within the suction and application chamber can be adjusted in order to enable adjustment of the volume of the drug mass to be sucked in and thus quantification. Furthermore, a first through-hole 812 and a second through-hole 813 are formed in the lower region of the suction and application chamber 811, a third through-hole 821 and a fourth through-hole 822 are formed in the intermediate plate 82, and a fifth through-hole 831 and a sixth through-hole 832 are formed in the lower base support 83, the sixth through-hole being connected to the drug mass storage device.Furthermore, the upper base support and the lower base support are connected to one another, wherein an intermediate sliding channel is formed at the connection point, within which the intermediate plate is slidably arranged. The intermediate plate 82 is connected to a first cylinder 84. The first through-bore 812 and the fifth through-bore 831 lie opposite one another. Before any displacement of the intermediate plate, the first through-bore, the third through-bore, and the fifth through-bore are connected to one another. After any displacement of the intermediate plate, the second through-bore 813 and the sixth through-bore 832 lie opposite one another, wherein, at the same time, when the first through-bore is closed by the intermediate plate, the second through-bore and the sixth through-bore are connected to one another via the fourth through-bore.At this time, the positions of the suction and application chamber 811 and the third through-hole 821 change. Closing the first through-hole with the intermediate plate causes the first through-hole and the fifth through-hole to no longer be connected to each other. In this position, the suction and application piston moves upward to suck in the drug mass. The intermediate plate then moves and closes the second through-hole again, so that the first through-hole, the third through-hole, and the fifth through-hole are connected to each other. With a downward movement of the suction and application piston, the drug mass is expelled. Furthermore, a seventh through-hole 833 is formed in the lower base support, which communicates with the fifth through-hole 831 and is also connected to an air pump via an air valve.By introducing high-pressure air into the seventh through-hole, the drug mass to be extruded can be completely removed to prevent adhesion and thus achieve more precise quantification. Several heating chambers 815 are formed in the upper base support 81, each of which contains a heater for heating the intake and application chamber and, if necessary, a temperature sensor for temperature control to maintain the temperature of the drug mass and thus prevent it from solidifying.

[0017] The drug layer compression molding device 9 has a gear rod 91, which is connected in its upper region to a third cylinder 96 and in its lower region to a compression plate 92. A sealing chamber 93 with a first opening 94 and a second opening 95 is formed within the compression plate 92, the first and second openings serving as inlets and outlets for a cooling liquid, respectively. The cooling liquid within the sealing chamber serves to lower the temperature of the compression plate and can cause rapid cooling of the drug mass. Furthermore, the gear rod 91 and the compression plate 92 are externally surrounded by a locking cap 96, which can move relative to the gear rod and allows a spring (not shown) to be arranged on the gear rod. The spring is attached at one end to the gear rod and at the other end to the locking cap.After the healing ointment has been applied to the carrier material, the carrier material moves forward to the drug layer compression device 9, with the locking cap and compression plate being moved downward by the gear rod until the locking cap encloses the drug mass from the outside. In contrast, the gear rod and compression plate continue to move relative to the locking cap to press the healing ointment into a flat layer. A first through-groove 97 and a second through-groove are formed in the locking cap, through which a line connected to the compression plate for conveying the cooling liquid can pass and which allow this line to move upwards or downwards together with the compression plate.After compression molding of the drug mass, it moves together with the substrate through the hob cutter cutting device, where it is cut off as a drug patch, with the remaining substrate being rewound onto the first winding device.

[0018] The present embodiment does not represent a limitation of the invention, but serves merely to illustrate the inventive concepts. Therefore, any insignificant variation is included within the scope of the invention.

Claims

[1] Medicinal plaster machine, comprising a machine stand, characterized by that a drug mass suction and application device, a drug layer compression device and a conveyor device are attached to the machine stand, wherein - the drug mass suction and application device comprises an upper base support, an intermediate plate and a lower base support, wherein - a suction and application chamber is formed in the upper base support, in the bottom area of ​​which a first through-hole and a second through-hole are provided, - a third through-hole and a fourth through-hole are formed in the intermediate plate and a fifth through-hole and a sixth through-hole are formed in the lower base support, - the upper base support and the lower base support are connected to each other, with an intermediate sliding channel being formed at the connection point, - the first through-hole is opposite the fifth through-hole, while the second through-hole is opposite the sixth through-hole, - the intermediate plate is located within the intermediate sliding channel and is connected to a first drive device, - a suction and application piston is provided within the suction and application chamber, which is connected to a second drive device, - the drug layer compression molding device comprises a gear rod connected at one end to a third drive device and at the other end to a compression molding plate, wherein the gear rod and the compression molding plate are externally surrounded by a locking hood. [2] Medicinal plaster machine according to claim 1, characterized by that a spring is attached to the gear rod, which is attached at one end to the gear rod and at the other end to the locking cap. [3] Medicinal plaster machine according to claim 1 or 2, characterized by that in the vicinity of the suction and application chamber of the upper base support there is a heating chamber in which a radiator is installed. [4] Medicinal plaster machine according to claim 1 or 2, characterized by that a sealing chamber with a first opening and a second opening is located within the compression molding plate, while a first through groove associated with the first opening and a second through groove associated with the second opening are formed in the locking hood. [5] Medicinal plaster machine according to claim 1 or 2, characterized by that the conveyor device comprises a first unwinder, a second unwinder, a tension rod and a first winder, and that a hob cutting device is further arranged on the machine stand. [6] Medicinal plaster machine according to claim 1 or 2, characterized bythat a seventh through-hole is formed in the lower base support, which is connected at one end to the fifth through-hole. [7] Medicinal plaster machine according to claim 1, characterized by that the first drive device, the second drive device and the third drive device are all designed as cylinders or hydraulic cylinders.

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