Injection molding equipment for material separation injection molding and injection molding method thereof
Technical Field
The invention belongs to the field of injection molding equipment, and particularly relates to injection molding equipment for material separation injection molding and an injection molding method thereof.
Background
The material-separating injection molding is the development trend of the current injection molding, the current products often need raw materials with various colors or different materials, in the material-separating injection molding process, products with different colors or material layers are formed after various different raw materials are mixed according to a certain proportion and are injected into an injection molding machine, but in the process of mixing various raw materials, a blanking hopper is used for guiding the materials into a melting device through a pipeline, then blanking is closed for heating and melting, the heat conduction of the mode is larger, and the materials are blocked by a baffle plate and still stored in the closest heating area mostly, so that the materials in the blanking hopper are heated partially to cause adhesion, the condition of influencing blanking is caused, and a plurality of blanking components which are longer in conveying have larger occupied space and are only suitable for larger equipment although not influencing the blanking area, so that the blanking components are not suitable for a temperature isolation structure on the small-sized material-separating injection molding device.
Disclosure of Invention
The invention aims to provide an injection molding device for material separation injection molding and an injection molding method thereof, so as to solve the problems.
The injection molding equipment comprises a base, wherein one side of the top of the base is provided with a melt extrusion device, the other side of the base is provided with a pushing device acting on the melt extrusion device, the melt extrusion device is provided with a rectangular communication pipeline, the rectangular communication pipeline is provided with a discharging hopper, materials are thrown into the rectangular communication pipeline through the discharging hopper, and then fall into the melt extrusion device through the rectangular communication pipeline;
The feeding hopper is characterized in that one side of the bottom of the feeding hopper is provided with a screw conveyor assembly, one end of the screw conveyor assembly is provided with a conical material pouring pipe, the conical material pouring pipe is communicated with the rectangular communication pipeline, materials are conveyed into the conical material pouring pipe through the screw conveyor assembly until falling into the rectangular communication pipeline, one end of the screw conveyor assembly extending into the conical material pouring pipe is connected with a polished rod I through a transmission assembly, the polished rod I is fixedly connected with the inner wall of the conical material pouring pipe through a fixing frame, and the polished rod I is movably connected with the fixing frame through a bearing;
The utility model discloses a rectangular communication pipeline is closed and opened, including the polished rod, threaded rod, movable block, telescopic link, sealing plate, telescopic link bottom fixedly connected with sealing plate, the threaded rod one end extends to the rectangular communication pipeline inside, threaded rod outside threaded connection has the movable block, the equal swing joint in movable block both sides has the telescopic link, the sealing plate is closed and is opened the rectangular communication pipeline inside by the pulling of telescopic link.
Preferably, the threaded rod extends to the inside one end fixedly connected with polished rod two of rectangle intercommunication pipeline, polished rod two and threaded rod and polished rod one junction are all fixed and are provided with the stopper, are provided with the spring and the spring housing is established on polished rod two on the stopper of arranging polished rod two bottoms, make the movable block move down to polished rod two on simultaneously compress the spring and make the movable block to polished rod two back positions motionless.
Preferably, the screw conveyor assembly comprises an outer cylinder penetrating through the conical material pouring pipe, one end of the outer cylinder extends to the bottom end inside the shell, a screw feeding rod is arranged inside the outer cylinder, two ends of the screw feeding rod are respectively arranged inside the bottom end inside the shell and the conical material pouring pipe, a central shaft of the screw feeding rod penetrates through the bottom of the shell in a rotating mode through a sealing bearing and is connected with a motor in a transmission mode, and the motor is fixedly connected with the bottom of the shell through a mounting frame.
Preferably, the transmission assembly comprises a first conical gear fixed at one end of the spiral feeding rod extending to the inside of the conical material pouring pipe, a second conical gear is connected with one side of the conical gear in a meshed mode, and the second conical gear is fixedly connected with the first polished rod.
Preferably, a fan for temperature isolation is arranged on the outer side of the rectangular communication pipeline, a through hole is formed in one side of the rectangular communication pipeline, opposite to the fan, a tact switch is arranged below the limiting block arranged on the top of the threaded rod, and the tact switch is electrically connected with the motor and the fan.
Preferably, the pushing device is arranged at one end of the melt extrusion device and is in transmission connection with a transmission rod, and a pushing plate for extruding and conveying the interior of the melt extrusion device is arranged at one end of the transmission rod.
Preferably, the base is including installing the base body of pushing equipment and melt extrusion equipment, be provided with fixed melt extrusion equipment on the base body, still be provided with the mounting bracket on the base, the mounting bracket improves the stability of hopper under the hopper through the mounting bracket is fixed.
An injection molding method of injection molding equipment for material separation injection molding comprises the following specific steps:
feeding, namely adding different materials through a discharging hopper, and conveying the materials into a conical material pouring pipe by utilizing a spiral conveyor assembly;
Step two, sectional feeding, wherein the spiral feeding rod is arranged and the transmission assembly is matched to drive the polished rod I to rotate, the rotating polished rod I is utilized to drive the movable block to move downwards, the movable block in the downwards moving can drive the telescopic rod to shrink and match the telescopic rod in the downwards pressing process, and the telescopic rod is fixedly connected with the sealing plate during the period, so that the sealing plate opens a channel between the rectangular communication pipeline and the melt extrusion equipment for blanking along with the downwards pressing of the telescopic rod;
The second polish rod and the spring are arranged, so that the spring can be compressed to move to the second polish rod when the moving block moves to the end of the threaded rod, and the second polish rod is fixed in position;
Heating and sealing, namely overturning a motor when the melt extrusion equipment needs to be heated, continuously pushing the moving block to be meshed with the threaded rod by using the resilience force of the spring to realize automatic spiral butt joint until the moving block is driven to move upwards and simultaneously driving the sealing plate to close a channel between the rectangular communication pipeline and the melt extrusion equipment;
and fourthly, insulating the temperature, and when the limit block is used for electrically connecting the tact switch with the motor and the fan, namely when the sealing plate is completely closed and sealed, starting the fan to insulate heat while closing the motor, and increasing the flow of middle air, so that the materials to be processed and the heating area are further insulated well.
The automatic feeding device has the technical effects and advantages that materials are conveyed into the conical material pouring pipe by utilizing the screw conveyor assembly, the rotating polish rod drives the moving block to move downwards, the moving block in the moving downwards drives the telescopic rod to shrink and match the telescopic rod in the pressing process, the telescopic rod and the sealing plate are fixedly connected during the pressing process, the sealing plate opens a channel between the rectangular communication pipeline and the melt extrusion equipment along with the pressing process of the telescopic rod to perform feeding, the electric connection between the tact switch on the limiting block and the motor and the fan can be used for conducting heat insulation when the sealing plate is completely closed and sealed, the fan is started to conduct heat insulation while the motor is closed, the middle air flow is further increased, the materials to be processed and the heating area are completely insulated, feeding and opening are automatically formed in the whole process, the temperature conduction between the connecting pipeline of the feeding hopper and the heating melting equipment is disconnected at the temperature when the heating is closed, the influence on the residual materials is avoided, and the materials are difficult to operate and circulate due to adhesion after the materials are heated in the feeding hopper due to the large quantity conduction of the temperature.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a top view of the present invention.
Fig. 3 is an enlarged view of part a of fig. 2 in accordance with the present invention.
Fig. 4 is a side view of the present invention.
Fig. 5 is an enlarged view of part B of fig. 4 in accordance with the present invention.
Fig. 6 is a schematic view of the internal structure of the rectangular communication pipeline according to the present invention.
Fig. 7 is a schematic view of a spring mounting structure of the present invention.
In the figure, 1, a rectangular communication pipeline; 2, a base, 201, a base body, 202, a mounting ring, 3, a melt extrusion device, 4, a blanking hopper, 401, a shell, 402, an outer cylinder, 403, a conical material pouring pipe, 404, a conical gear I, 405, a spiral material feeding rod, 407, a fixing frame, 408, a polished rod I, 409, a conical gear II, 5, a mounting frame, 6, a pushing device, 7, a transmission rod, 8, a push plate, 9, a threaded rod, 10, a moving block, 11, a telescopic rod, 12, a sealing plate, 13, a motor, 14, a spring, 15, a fan, 16, a limiting block, 17 and a polished rod II.
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 can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides injection molding equipment for material separation and injection molding, which is shown in the figure, and comprises a base 2, wherein one side of the top of the base 2 is provided with a melt extrusion device 3, the other side of the base 2 is provided with a pushing device 6 acting on the melt extrusion device 3, the melt extrusion device 3 is provided with a rectangular communication pipeline 1, the rectangular communication pipeline 1 is provided with a discharging hopper 4, materials are thrown into the rectangular communication pipeline 1 through the discharging hopper 4, and then fall into the melt extrusion device 3 through the rectangular communication pipeline 1;
One side of the bottom of the discharging hopper 4 is provided with a screw conveyer assembly, one end of the screw conveyer assembly is provided with a conical pouring pipe 403, the conical pouring pipe 403 is communicated with the rectangular communication pipeline 1, materials are conveyed into the conical pouring pipe 403 through the screw conveyer assembly until falling into the rectangular communication pipeline 1, one end of the screw conveyer assembly extending into the conical pouring pipe 403 is connected with a first polish rod 408 through a transmission assembly, the first polish rod 408 is fixedly connected with the inner wall of the conical pouring pipe 403 through a fixed frame 407, and the first polish rod 408 is movably connected with the fixed frame 407 through a bearing;
The bottom of the first polished rod 408 is connected with a threaded rod 9, one end of the threaded rod 9 extends into the rectangular communication pipeline 1, the outer side of the threaded rod 9 is in threaded connection with a moving block 10, two sides of the moving block 10 are movably connected with telescopic rods 11, the bottoms of the telescopic rods 11 are fixedly connected with sealing plates 12, and the sealing plates 12 are pulled by the telescopic rods 11 to close and open the rectangular communication pipeline 1.
Specifically, one end of the threaded rod 9 extending to the inside of the rectangular communication pipeline 1 is fixedly connected with a second polish rod 17, limiting blocks 16 are fixedly arranged at the joints of the second polish rod 17 and the first polish rod 408 and the threaded rod 9, springs 14 are arranged on the limiting blocks 16 arranged at the bottoms of the second polish rod 17, and the springs 14 are sleeved on the second polish rod 17, so that the movable block 10 moves downwards to the second polish rod 17, and meanwhile, the springs 14 are compressed to enable the movable block 10 to be immovable to the rear position of the second polish rod 17.
Specifically, the screw conveyor assembly includes the urceolus 402 that runs through toper fall material pipe 403 and urceolus 402 one end extends to the inside bottom of casing 401, and urceolus 402 is inside to be provided with spiral feed rod 405, and inside the inside bottom of casing 401 and toper fall material pipe 403 were arranged in respectively at spiral feed rod 405 both ends, the center pin of spiral feed rod 405 passes casing 401 bottom through sealed bearing rotation and transmission connection motor 13, and motor 13 passes through mounting bracket and casing 401 bottom fixed connection.
Specifically, the transmission assembly includes a first conical gear 404 fixed on the spiral feeding rod 405 and extending to one end inside the conical material pouring pipe 403, a second conical gear 409 engaged and connected to one side of the first conical gear 404, and a first polished rod 408 fixedly connected to the second conical gear 409.
Specifically, a fan 15 for temperature isolation is arranged on the outer side of the rectangular communication pipeline 1, a through hole is formed in one side of the rectangular communication pipeline 1 opposite to the fan 15, a tact switch is arranged below a limiting block 16 arranged on the top of the threaded rod 9, and the tact switch is electrically connected with the motor 13 and the fan 15.
Specifically, the pushing device 6 is arranged at one end of the melt extrusion device 3 and is in transmission connection with a transmission rod 7, and a push plate 8 for extruding and conveying the interior of the melt extrusion device 3 is arranged at one end of the transmission rod 7.
Specifically, the base 2 includes the base body 201 of installation pushing equipment 6 and melt extrusion equipment 3, is provided with the 22 of fixed melt extrusion equipment 3 on the base body 201, still is provided with mounting bracket 5 on the base 2, and the hopper 4 improves the stability under hopper 4 under the mounting bracket 5 is fixed through the mounting bracket.
The working principle is that different materials are added through a discharging hopper 4, then the materials are conveyed into a conical material pouring pipe 403 by utilizing a screw conveyor assembly, a first polish rod 408 is driven to rotate by utilizing the arrangement of a screw feeding rod 405 and the cooperation of a transmission assembly, a movable block 10 is driven to move downwards by utilizing the first polish rod 408 in rotation, a telescopic rod 11 is driven to shrink and match the telescopic rod 11 by utilizing the telescopic rod 11 in the downward moving process by the movable block 10 in the downward moving process, and a sealing plate 12 is opened by utilizing the fixed connection between the telescopic rod 11 and the sealing plate 12 along with the downward pressing of the telescopic rod 11 to discharge along with the opening of a channel between a rectangular communication pipeline 1 and a melt extrusion device 3;
during the process, by means of the arrangement of the second polish rod 17 and the spring 14, the spring 14 can be compressed to move to the second polish rod 17 when the moving block 10 moves to the end of the threaded rod 9, and the position is fixed;
When the melt extrusion equipment 3 needs to be heated, the motor 13 is turned over, the rebound force of the spring 14 is utilized to continuously push the movable block 10 to be meshed with the threaded rod 9, automatic spiral butt joint is achieved, until the movable block 10 is driven to move upwards, meanwhile, the sealing plate 12 is driven to close a channel between the rectangular communication pipeline 1 and the melt extrusion equipment 3, when the electric connection between the light touch switch on the limiting block 16 and the motor 13 and the fan 15 is utilized, namely, when the sealing plate 12 is completely closed and sealed, the fan 15 is started to conduct heat insulation while the middle air flow is increased, further heat insulation between materials to be processed and a heating area is achieved, discharging and opening are automatically formed in the whole process, and when the heating is closed, temperature conduction between a lower hopper connecting pipeline and the heating melting equipment is disconnected at the temperature, so that influence on residual materials is avoided, and the phenomenon that the materials are difficult to operate and circulate due to adhesion after the heating caused by mass conduction of the temperature is avoided.
It should be noted that the foregoing description is only a preferred embodiment of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood that modifications, equivalents, improvements and modifications to the technical solution described in the foregoing embodiments may occur to those skilled in the art, and all modifications, equivalents, and improvements are intended to be included within the spirit and principle of the present invention.