摘要:
A tablet production apparatus comprising a gas generator G, a lubricant powder discharge means 51 for discharging a lubricant powder into a gas generated from the gas generator G, depending on the supply of the gas from the gas generator G, and mixing the lubricant powder with the gas in dispersed state, a lubricant application means 91 for spraying the lubricant powder discharged from the lubricant powder discharge means 51 and mixed with the gas generated from the gas generation means G in dispersed state, onto each material contacting surface of a die, an upper punch and a lower punch, and an oxygen concentration measuring means 131a for measuring the oxygen concentration of the gas existing near the lubricant application means 91. The apparatus is designed such that the amount of the gas supplied into the lubricant application means is adjusted based on the oxygen concentration measured by the oxygen concentration measuring means 131a.
摘要:
A tablet production apparatus comprising a gas generator G, a lubricant powder discharge means 51 for discharging a lubricant powder into a gas generated from the gas generator G, depending on the supply of the gas from the gas generator G, and mixing the lubricant powder with the gas in dispersed state, a lubricant application means 91 for spraying the lubricant powder discharged from the lubricant powder discharge means 51 and mixed with the gas generated from the gas generation means G in dispersed state, onto each material contacting surface of a die, an upper punch and a lower punch, and an oxygen concentration measuring means 131a for measuring the oxygen concentration of the gas existing near the lubricant application means 91. The apparatus is designed such that the amount of the gas supplied into the lubricant application means is adjusted based on the oxygen concentration measured by the oxygen concentration measuring means 131a.
摘要:
A sprayer and method for spraying powdered material activated by pulsating vibration air. The sprayer comprises an elastic membrane, a storage tank for storing powdered material provided with the elastic membrane at the bottom opening, and a pulsating vibration air generator for supplying pulsating vibration air to the elastic membrane. The sprayer so constructed is designed to uniformly and diffusely spray the powdered material stored in the storage tank when the elastic membrane is forcedly vibrated up and down in compliance with the frequency of the pulsating vibration air by receiving pulsating vibration air from the pulsating vibration air generator.
摘要:
A powdered material spraying device comprising a quantitative spraying device provided for a material discharge port of the powdered material storage hopper via a material feed valve, a cover being provided for the material feed port of the powdered material storage hopper. The spraying device includes a cylindrical body connected with the material discharge port of the powdered material storage hopper, an elastic membrane with a penetrating aperture provided so as to form a bottom of the cylindrical body at its lower opening end, and a dispersion chamber connected under the lower opening end of the cylindrical body via the elastic membrane. The dispersion chamber has a pulsating vibration air supply port for supplying a positive pulsating vibration air to the dispersion chamber and a discharge port. A bypass pipe is connected between the cylindrical body and the dispersion chamber and the powdered material is sprayed from a tip end of a conduit connected with the discharge port of the dispersion chamber.
摘要:
A pulsating vibration air generation apparatus capable of sharply and quickly controlling air flow in turning on and off operation, thereby generating a pulsating vibration air with sharp and hardly attenuated peak and valley, and capable of operation without occurrence of so much mechanical vibration. The pulsating vibration air generation apparatus is comprised of a main body having a tubular hollow space R2 with which two air communication ports are associated, and a rotary body situated for rotation in the tubular hollow space R2 and which has a peripheral side surface S4c so as to slide on the inner surface S2c forming the tubular hollow space R2.
摘要:
A tablet including active substance affected by lubricant, wherein the tablet is comprised of compressed mixture of active substance and adjuvant except for lubricant, and lubricant exists only on the surface of the tablet but is not included in the tablet. Such a tablet production method comprising the steps of producing mixture of active substance affected by lubricant and adjuvant, mixing lubricant powder with positive pulsating vibration air for dispersion, spraying the lubricant powder dispersed by the positive vibration air on a lower surface of an upper punch, an upper surface of a lower punch and an inner circumferential wall of a die, and tabletting the mixture by means of the upper and lower punches and the die.
摘要:
A pulsating vibration air generator in which wave height, frequency and wave shape of the pulsating vibration air can be optionally modified and such pulsating vibration air can be periodically and continuously emitted. The pulsating vibration air generator has a valve chamber with an inlet port and an outlet port where a valve plug and a valve seat with a control opening are provided and a cam mechanism which moves the valve plug to open or close the opening of the valve seat, whereby positive or negative pulsating vibration air is emitted from the outlet port while pressurized air is supplied into the inlet port or air is sucked from the inlet port.
摘要:
A mixing and blending method for powdered or granular material includes supplying pulsating vibration air into an airtight tank from a bottom thereof. An airtight tank having a porous bottom plate on which the material is stored is provided for the mixing and blending method. In the system pulsating vibration air is generated by periodically increasing and decreasing the amount of blowing air at a low frequency. Pulsating vibration air is introduced into the airtight tank from the bottom of the airtight tank so as to generate air flow going upward through the porous bottom of the airtight tank. As a result, powdered or granular material stored on the porous bottom plate in the airtight tank is uniformly mixed and blended in the airtight tank while continuously moving up and down as in a convectional manner.
摘要:
An intrabuccally rapidly disintegrating tablet which is manufactured by a simple method, has an enough practical hardness and is rapidly disintegrated in the buccal cavity and its production method. The intrabuccally rapidly disintegrating tablet is produced by growing a powder material into a granulated material with a fixed particle diameter, the powder material including a sugar alcohol or a saccharide as main ingredient, each of which is first particle having an average particle diameter of not more than 30 μm, by mixing thus obtained granulated material with an active ingredient and a disintegrant, and by compressing the mixture into a predetermined shape.
摘要:
A powder material application apparatus capable of applying powder material uniformly onto lower surfaces of plural upper punches, upper surfaces of plural lower punches and inner circumferences of plural dies of a tabletting machine. Powder material is applied on a material contacting surface of the lower punch by spraying powder material mixed with air from a powder material spray port for lower punch of a powder material application part for lower punch. Powder material is applied on a material contacting surface of the upper punch wherein powder material is not applied enough according to gravity by spraying powder material mixed with air from a powder material spray port for upper punch while the upper punch moves from an initial end to a terminal end of the powder material spray port for upper punch. The powder material spray port for upper punch is provided along the rotary orbit of the upper punches and is elongated more than the powder material spray port for lower punch.