Forming mechanism of bubble cap forming machine
阅读说明:本技术 泡罩成型机的成型机构 (Forming mechanism of bubble cap forming machine ) 是由 袁晓磊 蔡名洁 王新河 柯益荣 于 2019-11-07 设计创作,主要内容包括:本发明公开了一种泡罩成型机的成型机构,包括上成型模、下成型模,所述下成型模安装在成型架上,其特征在于所述成型架上安装有可转动的传动轴上,所述传动轴上设置曲轴,并在所述传动轴上安装的偏心轮,所述偏心轮与固定在所述泡罩成型机机架上的滚轮接触,所述曲轴通过轴套与移动架连接,所述移动架连接囊箱,所述囊箱由固定的上箱体与可滑动的下箱体构成,所述囊箱内设有气囊,所述下箱体与所述上成型模连接。本发明的这种结构,利用曲轴与偏心轮的结构,使得开模与合模时,包装模具的状态稳定,不易跳动,而且采用气囊的结构,能够对泡罩进行稳定成型,其可靠性高,非常适用于泡罩成型。(The invention discloses a forming mechanism of a bubble cap forming machine, which comprises an upper forming die and a lower forming die, wherein the lower forming die is arranged on a forming frame, and the forming mechanism is characterized in that a rotatable transmission shaft is arranged on the forming frame, a crankshaft is arranged on the transmission shaft, an eccentric wheel is arranged on the transmission shaft, the eccentric wheel is in contact with a roller fixed on a frame of the bubble cap forming machine, the crankshaft is connected with a movable frame through a shaft sleeve, the movable frame is connected with a bag box, the bag box is composed of a fixed upper box body and a slidable lower box body, an air bag is arranged in the bag box, and the lower box body is connected with the upper forming die. The structure of the invention utilizes the structure of the crank shaft and the eccentric wheel, so that the packaging mold is stable in state and not easy to jump when opening and closing the mold, and the structure of the air bag is adopted, so that the bubble cap can be stably formed, the reliability is high, and the structure is very suitable for bubble cap forming.)
1. A forming mechanism of a bubble cap forming machine comprises an upper forming die and a lower forming die, wherein the lower forming die is arranged on a forming frame, and the forming mechanism is characterized in that a rotatable transmission shaft is arranged on the forming frame, a crankshaft is arranged on the transmission shaft, an eccentric wheel is arranged on the transmission shaft, the eccentric wheel is in contact with a roller fixed on a rack of the bubble cap forming machine, the crankshaft is connected with a moving frame through a shaft sleeve, the moving frame is connected with a bag box, the bag box is composed of a fixed upper box body and a slidable lower box body, an air bag is arranged in the bag box, and the lower box body is connected with the upper forming die.
2. The forming mechanism of a blister forming machine according to claim 1, wherein the upper case is provided with a guide post, and the lower case is fitted over the guide post.
3. A forming mechanism of a blister forming machine according to claim 1, wherein a movable plate is provided below the lower case, and the upper forming die and the movable plate are provided with mutually matched inclined surfaces.
4. The forming mechanism of a blister forming machine according to claim 1, further comprising a locking cylinder, wherein a piston rod of the locking cylinder is provided with a locking rod of an I-shaped structure, and the upper and lower forming molds and the lower forming mold are provided with T-shaped grooves matched with the locking rod of the I-shaped structure.
5. The forming mechanism of a bubble forming machine according to claim 1, wherein the air bag is connected with an air compressor, a pressure sensor is arranged in the air bag, the pressure sensor is electrically connected with a controller, and the controller is electrically connected with an electromagnetic valve on a connecting pipeline of the air bag and the air compressor.
6. The forming mechanism of a blister forming machine according to claim 3, wherein the movable plate is screwed with an adjusting rod.
Technical Field
The invention relates to a pharmaceutical machine, in particular to a blister forming mechanism of a blister packaging machine.
Background
The blister packaging machine is characterized by that after the forming mould is softened by heating device, the softened film is blown into blister by means of compressed air in the forming device, the filling device is used for filling the packaged material into blister, then the blister is fed into sealing device, and the covering film and forming mould are sealed under the condition of proper temp. and pressure, and finally the die-cutting device is used for cutting into the defined size so as to obtain the blister packaging product. At present, the die opening and closing processes of the blister packaging machine during molding are all that a cam structure is adopted to drive an upper die or a lower die to move. The Chinese patent database is checked to obtain the patent application with the publication number of CN109466051A and the name of 'a blister forming device for a blister forming machine', and the invention discloses the following contents: a blister forming device for a blister forming machine, characterized by: the automatic forming device comprises a male die and a groove, wherein the male die is fixedly connected to a male die base, the male die base is fixedly connected to a bottom plate stand column, a female die is fixedly connected to a groove base, the groove is movably connected to a guide rod, the guide rod is fixedly connected to the male die, a driving mechanism for driving the female die base to move is installed on the upper side of the female die base, the driving mechanism and the bottom plate stand column are installed on a support in a corona mode, a thin transmission belt is installed between the male die and the female die, a forming through hole is formed in the thin transmission belt, the support is of a horizontal U-shaped structure. Meanwhile, the driving mechanism comprises a roller, a cam and a driving motor, the roller is rotatably connected to a roller frame, the roller frame is fixedly connected to the female die base, the cam is fixedly connected to an output shaft of the driving motor, the rotating axis of the cam is parallel to the axis of the valley wheel, the surface of the roller is always in contact with the surface of the cam, and the cam can be in contact with the male die and the female die after rotating. In the process of adopting the cam structure to move the upper die and the lower die, the phenomenon of jumping of the upper die and the lower die is easily caused, and the forming quality of the bubble cap is influenced. In the forming mechanism of the blister packaging machine, the spring is arranged on the upper die or the lower die to serve as a buffering return mechanism, and the spring has fatigue phenomenon and can influence the forming quality of the blister in the long-term use of the forming mechanism.
Disclosure of Invention
In view of the shortcomings of the background art, the technical problem to be solved by the invention is to provide a forming mechanism of a blister forming machine, which improves the quality of blister forming.
Therefore, the invention is realized by adopting the following technical scheme: a forming mechanism of a bubble cap forming machine comprises an upper forming die and a lower forming die, wherein the lower forming die is arranged on a forming frame, and the forming mechanism is characterized in that a rotatable transmission shaft is arranged on the forming frame, a crankshaft is arranged on the transmission shaft, an eccentric wheel is arranged on the transmission shaft, the eccentric wheel is in contact with a roller fixed on a rack of the bubble cap forming machine, the crankshaft is connected with a moving frame through a shaft sleeve, the moving frame is connected with a bag box, the bag box is composed of a fixed upper box body and a slidable lower box body, an air bag is arranged in the bag box, and the lower box body is connected with the upper forming die.
The upper box body is provided with a guide pillar, and the lower box body is sleeved on the guide pillar.
The lower box body is provided with a movable plate below, and the upper die and the movable plate are provided with mutually matched inclined planes.
The locking device is characterized by further comprising a locking cylinder, a piston rod of the locking cylinder is provided with a locking rod of an I-shaped structure, and the upper and lower forming dies and the lower forming die are provided with T-shaped grooves matched with the locking rod of the I-shaped structure.
The air bag is connected with the air compressor, a pressure sensor is arranged in the air bag and electrically connected with a controller, and the controller is electrically connected with an electromagnetic valve on a pipeline connecting the air bag and the air compressor.
The movable plate is connected with an adjusting rod in a threaded mode.
The structure of the invention ensures that the upper forming die and the lower forming die run stably and do not jump easily through the structure of the crankshaft and the eccentric wheel, the air bag is used as a buffer return mechanism, the air pressure in the air bag can be controlled at any time, and after the air bag is opened, the heated bubble cap strip is not easy to be contacted by the cold lower forming die to take away heat, thereby effectively ensuring the forming quality of the bubble cap.
Drawings
The details of the present invention are further described with reference to the accompanying drawings;
FIG. 1 is an overall block diagram of the present invention;
FIG. 2 is a view showing the construction of the present invention after the drive shaft housing is hidden;
FIG. 3 is a structural diagram of a crankshaft and an eccentric wheel arranged on a transmission shaft of the invention;
FIG. 4 is a view of the present invention after the lower case is hidden in FIG. 1;
FIG. 5 is a block diagram of the invention after the hidden bladder box of FIG. 1;
FIG. 6 is a view of the structure of the upper forming die and the locking cylinder;
FIG. 7 is a view showing a structure of the upper molding plate and the movable plate in cooperation according to the present invention;
FIG. 8 is a view of the structure of the lower forming die and the locking cylinder;
FIG. 9 is a view showing the structure of the lower molding die of the present invention in which the blister hole is provided.
Detailed Description
Referring to the attached drawings, the forming mechanism of the bubble forming machine comprises an upper forming die 8 and a lower forming die 10, wherein the upper forming
Wherein,
According to the invention, a
In order to quickly install and position the upper forming die 8 and the lower forming die 10, the invention further comprises a
When the invention works, a film is heated and softened by a heating device and passes through between an upper forming die 8 and a lower forming die 10, wherein corresponding bubble cap holes 29 are arranged on the lower forming die 10 and the upper forming
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