Precision plastic mold with cooling mechanism for medical product production
Technical Field
The invention relates to the technical field of dies, in particular to a precise plastic die with a cooling mechanism for medical product production.
Background
The plastic mould is a combined mould for compression moulding, extrusion moulding, injection, blow moulding and low foaming moulding, the appearance of the plastic mould well improves the productivity, the plastic mould is indispensable in the production of a plurality of medical products, for example, a plastic shell, a plastic connecting piece and the like on the medical products are mainly made of plastic moulds, although the technology of the plastic mould is relatively mature, the existing plastic mould is mainly provided with an air cooling or water cooling mechanism independently and directly blows air to the injection moulding product, the contact surface of the injection moulding product and the mould cannot blow air, the waiting time after injection moulding is reduced to a certain extent, the waiting time for the complete cooling and moulding of the product is still longer, and certain defects still exist.
Disclosure of Invention
The invention aims to provide a precise plastic mold with a cooling mechanism for medical product production, so as to solve the problems in the background technology. In order to achieve the above purpose, the present invention provides the following technical solutions: the utility model provides a medical product production is with accurate plastic mould that has cooling body, includes the bed die, the bottom surface of bed die is opened flutedly, the center department of bed die bottom surface is opened there is the piston hole with the bed die cavity intercommunication, the bottom surface fixed mounting of bed die has the die carrier board, the vertical fixedly connected with hydro-cylinder in center department of die carrier board top surface, the top fixed mounting of hydro-cylinder has the piston with the piston hole adaptation, piston slidable mounting is in the piston hole, one side of bed die is opened there is the air flue with the piston hole intercommunication, be used for the refrigerated gas guiding mechanism of mould is installed to the one end of air flue.
Preferably, the gas flow guiding mechanism comprises an air inlet nozzle, a first electromagnetic valve, a three-way pipe and a second electromagnetic valve, one end of the air inlet nozzle is fixedly arranged in the air passage, the thickness of the piston is 1.5 times of the aperture of the air passage, the other end of the air inlet nozzle is connected with the first electromagnetic valve through an air inflow adjusting mechanism, the air inflow adjusting mechanism comprises a polygonal cylinder body, a motor and a baffle plate, two ends of the polygonal cylinder body are fixedly sleeved with one end of the air inlet nozzle and one end of the first electromagnetic valve respectively, the top of the polygonal cylinder body is fixedly provided with the motor, an output shaft of the motor is rotatably arranged on a top plate of the polygonal cylinder body in a penetrating mode through a bearing, the bottom end of the output shaft of the motor is fixedly connected with the baffle plate for adjusting the air inflow, and one ends of the two connectors of the three-way pipe are fixedly sleeved with one end of the first electromagnetic valve and one end of the second electromagnetic valve correspondingly.
Preferably, one end of the second electromagnetic valve far away from the three-way pipe is fixedly sleeved with one end of the gooseneck, a spray head used for spraying air is arranged at the other end of the gooseneck, the gooseneck is convenient to adjust the position of the spray head and is beneficial to the spray head to be at the optimal position, the three-way pipe is a hard metal three-way pipe, and the oil cylinder, the first electromagnetic valve, the second electromagnetic valve and the motor are all externally connected with a PLC (programmable logic controller) used for controlling the oil cylinder, the first electromagnetic valve, the second electromagnetic valve and the motor.
Compared with the prior art, the invention has the beneficial effects that:
The lower die is provided with the piston hole, the air passage, the air guide mechanism, the oil cylinder and the piston, after injection molding is completed, the second electromagnetic valve of the air guide mechanism is opened to blow and cool the outside of an injection molded product, meanwhile, after the oil cylinder descends, the air passage blocked by the piston is opened, when the first electromagnetic valve is opened, external air flow can be blown into the air passage by the air inlet nozzle and then blown to one side surface of the injection molded product, which is tightly attached to the lower die, at the moment, the injection molded product can be further cooled, the cooling efficiency is high, the cooling efficiency of the product after injection molding is improved, and the cooling time is reduced;
The invention has smart structure, when the oil cylinder rises, the top surface of the piston exceeds the bottom of the die cavity, the injection molding product can be ejected out of the die cavity, and then the injection molding product can be separated, so that the injection molding is not influenced, the cooling of the injection molding product is convenient, and the popularization and the use during the injection molding are facilitated.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a front view structure of the present invention;
FIG. 3 is a schematic view of a front cross-sectional structure of a lower die of the invention;
Fig. 4 is a right-side view of the polygonal cylinder of the present invention.
In the figure: 1. a lower die; 2. a groove; 3. an oil cylinder; 4. a piston; 5. a piston bore; 6. an airway; 7. an air inlet nozzle; 8. a polygonal cylinder; 9. a first electromagnetic valve; 10. a three-way pipe; 11. a second electromagnetic valve; 12. a gooseneck; 13. a spray head; 14. a motor; 15. and a baffle.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present invention based on the embodiments of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides a medical product production is with accurate plastic mould that has cooling body, including bed die 1, the bottom surface of bed die 1 is opened flutedly 2, the center department of bed die 1 bottom surface is opened there is the piston hole 5 with bed die 1 die cavity intercommunication, the bottom surface fixed mounting of bed die 1 has the die carrier board, the vertical fixedly connected with hydro-cylinder 3 in center department of die carrier board top surface, the top fixed mounting of hydro-cylinder 3 has the piston 4 with piston hole 5 adaptation, piston 4 slidable mounting is in piston hole 5, a side of bed die 1 is opened there is the air flue 6 with piston hole 5 intercommunication, be used for mould refrigerated gas guiding mechanism is installed to the one end of air flue 6.
Specifically, the gas flow guiding mechanism includes air inlet nozzle 7, first solenoid valve 9, three-way pipe 10 and second solenoid valve 11, the one end fixed mounting of air inlet nozzle 7 is in air flue 6, the thickness of piston 4 is 1.5 times of air flue 6 aperture, be connected through air input adjustment mechanism between the other end of air inlet nozzle 7 and the first solenoid valve 9, air input adjustment mechanism includes polygon barrel 8, motor 14 and baffle 15, the both ends of polygon barrel 8 are fixed with the one end of air inlet nozzle 7 and the one end of first solenoid valve 9 respectively and cup joint, the top fixed mounting of polygon barrel 8 has motor 14, the output shaft of motor 14 runs through the bearing rotation and installs on the roof of polygon barrel 8, the bottom fixedly connected with of motor 14 output shaft is used for adjusting baffle 15 of air input, correspond on two of three-way pipe 10 with the one end of first solenoid valve 9 and the one end fixed cup joint of second solenoid valve 11.
Specifically, one end of the second electromagnetic valve 11 far away from the three-way pipe 10 is fixedly sleeved with one end of the gooseneck 12, the other end of the gooseneck 12 is provided with a spray head 13 for spraying air, the gooseneck 12 is convenient for adjusting the position of the spray head 13, the spray head 13 is in an optimal position, the three-way pipe 10 is a hard metal three-way pipe, and the oil cylinder 3, the first electromagnetic valve 9, the second electromagnetic valve 11 and the motor 14 are externally connected with a PLC (programmable logic controller) for controlling the oil cylinder 3, the first electromagnetic valve 9, the second electromagnetic valve 11 and the motor 14.
The working process of the invention is as follows:
When the device is used, as shown in fig. 1-4, the three-way pipe 10 of the gas flow guiding mechanism is connected with an external gas source, when the medical apparatus injection molding production is carried out, after the upper die and the lower die 1 are closed, fluid raw materials are injected, the raw materials are molded in a die cavity, after the product is primarily molded, the upper die and the lower die 1 are separated, at the moment, the first electromagnetic valve 9 is controlled to be closed by a PLC, the second electromagnetic valve 11 is opened, after the second electromagnetic valve 11 is opened, gas of an external gas source is blown into a gooseneck 12 by one branch pipe of the three-way pipe 10 and then blown onto an injection molded product by a nozzle 13 of the gooseneck 12, the cooling of the product facing away from the die is facilitated, after the product is cooled for a period of time, the oil cylinder 3 is lowered, an air passage 6 blocked by a piston 4 at the top end of the oil cylinder 3 is opened, the air passage 6 is communicated with a piston hole 5, at the moment, the PLC can control the opening of the first electromagnetic valve 9, after the first electromagnetic valve 9 is opened, air flow can pass through the polygonal cylinder 8, the air inlet nozzle 7 blows the air channel 6, then the air is blown to one side surface of the injection molding product, which is clung to the lower die 1, at the moment, the injection molding product can be further cooled, the process is also favorable for separating the injection molding product from the lower die 1, the motor 14 on the polygonal cylinder 8 can drive the baffle 15 to rotate, the baffle 15 rotating process can adjust the blocking area of the air flow, thereby achieving the purposes of adjusting the air flow entering the air channel 6, avoiding the condition that the injection molding product is blown and deformed due to larger air flow, when the oil cylinder 3 is lifted, the top surface of the piston 4 exceeds the bottom of the die cavity, the injection molding product can be ejected out of the die cavity, and then the injection molding product can be separated, when the top surface of the piston 4 and the bottom of the die cavity are positioned at the same horizontal plane, the structure of the die is ingenious, the use is convenient, the cooling efficiency of the product after injection molding is improved, the cooling time is reduced, and the popularization and the use during injection molding are facilitated.
The foregoing has shown and described the basic principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the above embodiments and descriptions are only preferred embodiments of the present invention, and are not intended to limit the invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.