CN111645287A - Injection molding system and injection molding method - Google Patents
Injection molding system and injection molding method Download PDFInfo
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- CN111645287A CN111645287A CN202010614459.6A CN202010614459A CN111645287A CN 111645287 A CN111645287 A CN 111645287A CN 202010614459 A CN202010614459 A CN 202010614459A CN 111645287 A CN111645287 A CN 111645287A
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- pipe
- fixedly connected
- plate
- injection molding
- injection
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/72—Heating or cooling
- B29C45/74—Heating or cooling of the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/18—Feeding the material into the injection moulding apparatus, i.e. feeding the non-plastified material into the injection unit
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/40—Removing or ejecting moulded articles
- B29C45/4005—Ejector constructions; Ejector operating mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
- B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to the field of plastic injection molding, in particular to an injection molding system and an injection molding method, wherein the method comprises the following steps: step 1: after the plastic particles are added into the feeding port, the plastic particles slide into the material dissolving pipe under the action of gravity; step 2: heating the plastic in the material dissolving pipe, and downwards conveying and stirring the semi-molten plastic particles; and step 3: extruding the melted plastic, and extruding the melted plastic into an upper die and a lower die; and 4, step 4: after the molten plastic is cooled and formed, the formed piece is tightly propped against the lower end of the upper die through the propping ring; and 5: after the lower die moves downwards to the lowest position, the formed part is driven to be separated from the upper die, the air suction pump is stopped, the jacking pipe continues to slide downwards to the position matched with the lower die to stop, the formed part is stopped on the two guide sliding columns by the two guide sliding column grids when moving downwards to the positions of the two guide sliding columns along with the jacking circular ring, and slides downwards along the two guide sliding columns under the influence of gravity, so that the separation of the injection molding part and the injection molding machine is completed.
Description
Technical Field
The invention relates to the field of plastic injection molding, in particular to an injection molding system and an injection molding method.
Background
The injection molding machine is also called an injection molding machine or an injection machine, a beer machine is called in many factories, and an injection molding product is called a beer piece. It is a main forming equipment for making various shaped plastic products with thermoplastic plastics or thermosetting plastics by using plastic forming mould. The injection molding machine is a processing machine with the largest use amount in the plastic processing industry, and not only a large number of products can be directly produced by the injection molding machine, but also key equipment for forming an injection stretch blow process is formed. The injection moulding machine is similar to the injection syringe for injection, and is a technological process of injecting the plastified molten plastics, i.e. viscous plastics, into closed mould cavity by means of the thrust of screw or plunger, solidifying and forming so as to obtain the invented product. Traditional injection molding machine is not convenient for take out after the mould shaping, influences production efficiency.
Disclosure of Invention
The invention aims to provide an injection molding system and an injection molding method, which are convenient for taking out a forming mold and improve the production efficiency.
The purpose of the invention is realized by the following technical scheme:
an injection molding system comprises a support frame, a melt mechanism, a feeding mechanism, an injection mechanism, a lower die carrier, a jacking mechanism, an adjusting mechanism, a slide rod guide mechanism and an air suction pump, wherein the melt mechanism is fixedly connected to the support frame;
the supporting frame comprises a main board, a supporting board, a fixed sliding plate, an upper die, a mounting board, four supporting slide bars, a bottom board and a base, wherein the supporting board is fixedly connected to the upper end face of the main board;
the material melting mechanism comprises a charging hole, a material dissolving pipe, a heating pipe and an injection conical pipe head, the material dissolving pipe is fixedly connected to the middle part of the supporting plate, the lower end of the material dissolving pipe is fixedly connected with an injection conical pipe head, a valve is arranged on the injection conical pipe head, the heating pipe is fixedly connected to the outer wall of the material dissolving pipe, the charging hole is arranged at the upper end of the material dissolving pipe, and the injection conical pipe head is communicated with the upper die;
the feeding mechanism comprises a feeding motor, a feeding shaft, a pushing piston and a feeding spiral plate, the feeding motor is in transmission connection with the upper end of the feeding shaft, the pushing piston and the feeding spiral plate are both fixedly connected to the feeding shaft, the pushing piston is positioned above the feeding spiral plate, and the pushing piston is connected in the material dissolving pipe in a sliding manner;
the injection mechanism comprises a lifting plate and an injection oil cylinder, the lifting plate is connected to the fixed sliding plate in a sliding mode, the upper end of the injection oil cylinder is fixedly connected with the lifting plate, the lower end of the injection oil cylinder is fixedly connected with the supporting plate, the feeding shaft is rotatably connected to the lifting plate, and the feeding motor is fixedly connected to the lifting plate;
the lower die frame comprises a lower die, a central sliding hole, a supporting plate, a C-shaped plate, a connecting ring, a communicating seam and a die opening oil cylinder, wherein the central sliding hole is formed in the center of the lower die;
the jacking mechanism comprises a jacking ring, a jacking pipe, an internal thread ring and a vent groove, the vent groove is formed in the inner wall of the jacking pipe, the jacking ring is arranged at the upper end of the jacking pipe, the internal thread ring is arranged at the lower end of the jacking pipe, and the jacking ring, the jacking pipe and the internal thread ring are all connected in the central sliding hole in a sliding manner;
the adjusting mechanism comprises a central plate, an external threaded pipe, a transmission gear, a connecting pipe head, an adjusting motor and a vent hole, wherein the central plate is fixedly connected to the upper end of the external threaded pipe, the connecting pipe head is fixedly connected to the lower end of the external threaded pipe, the transmission gear is fixedly connected to the external threaded pipe, the vent hole is formed in the upper end of the external threaded pipe, the lower end of the external threaded pipe is rotatably connected to a C-shaped plate, the external threaded pipe is connected with an internal threaded ring through threads, the central plate is slidably connected into a jacking circular ring and the jacking pipe, the adjusting motor is fixedly connected to the C-shaped plate, the adjusting motor is in meshing transmission connection with the transmission gear;
the slide bar guide mechanism comprises a worm motor, two worm wheel shafts, two rotating plates and a guide sliding column, the worm motor is fixedly connected to the main board, an output shaft of the worm motor penetrates through the main board and is fixedly connected with a worm, the two worm wheel shafts are symmetrically and rotatably connected to the mounting plate, the worm motor is positioned between the two worm wheel shafts and is in meshing transmission connection with the two worm wheel shafts through the worm and gear, the rotating plates are fixedly connected to the worm wheel shafts, and the lower ends of the two rotating plates are obliquely and fixedly connected with the guide sliding column;
the injection molding method of the injection molding system comprises the following steps:
step 1: after plastic particles are added into the feeding port, the lifting plate is lifted through the extension of the injection oil cylinder, and meanwhile, the pushing piston is driven by the feeding shaft to slide upwards to the uppermost end of the material dissolving pipe, so that the feeding port is communicated with the material dissolving pipe, and the plastic particles slide into the material dissolving pipe under the action of gravity;
step 2: starting the heating pipe to heat the plastic in the material dissolving pipe, starting the feeding motor to drive the feeding shaft to drive the feeding spiral plate to rotate, and conveying and stirring the semi-molten plastic particles downwards, so that the plastic is prevented from blocking the material dissolving pipe and air in the plastic is discharged;
and step 3: after the plastic particles are completely melted, a valve on the injection taper pipe head is opened, the lifting plate is lowered by shortening the injection oil cylinder, so that the feeding shaft drives the pushing piston to slide downwards to extrude the melted plastic, and the melted plastic is extruded into the upper die and the lower die;
and 4, step 4: after the molten plastic is cooled and formed, the lower die is driven to slide downwards through the die opening oil cylinder, the adjusting motor is started to drive the external threaded pipe to rotate, the external threaded pipe is connected with the internal threaded ring in a threaded manner, the jacking pipe slides upwards in the central sliding hole, and the formed part is jacked at the lower end of the upper die through the jacking circular ring;
and 5: after the lower die moves downwards to the lowest position, the worm motor is started to drive the two worm wheel shafts, the two worm wheel shafts drive the two guide sliding columns to simultaneously rotate downwards from the front end and the rear end of the upper die to the position right below the upper die through the rotating plate and then stop, the air suction pump is started, the formed part is sucked tightly through the connecting pipe head, the external threaded pipe, the vent hole, the vent groove and the inner hole of the jacking ring, the adjusting motor is reversely started, the transmission jacking pipe slides downwards in the central sliding hole and drives the formed part to be separated from the upper die, the air suction pump is stopped, the jacking pipe continuously slides downwards to the position matched with the lower die and stops, the formed part is stopped on the two guide sliding columns by the two guide sliding column grids when moving downwards to the two guide sliding columns along with the jacking ring, and slides downwards obliquely along the two guide sliding columns under the influence of gravity, and the separation of the injection molding part and.
The invention has the beneficial effects that: the invention provides an injection molding system and an injection molding method.A feeding motor is started to drive a feeding shaft to drive a feeding spiral plate to rotate when a heating pipe heats plastic in a material dissolving pipe, semi-molten plastic particles are conveyed and stirred downwards, and air in the plastic is discharged while the plastic is prevented from blocking the material dissolving pipe; after the molten plastic is cooled and formed, the lower die is driven to slide downwards through the die opening oil cylinder, the external threaded pipe is driven to rotate through the adjusting motor, the jacking pipe slides upwards in the central sliding hole, and the formed part is jacked at the lower end of the upper die through the jacking ring; after the lower die moves downwards to the lowest position, the worm motor is started to drive the two guide sliding columns to simultaneously rotate downwards from the front end and the rear end of the upper die to the position right below the upper die and then stop, so that the formed part can slide downwards along the two guide sliding columns in an inclined mode under the influence of gravity, and the injection molding part is separated from the injection molding machine; starting the air suction pump, sucking the formed part tightly through the inner hole of the connecting pipe head, the external threaded pipe, the vent hole, the vent groove and the jacking ring, and reversely starting the adjusting motor to enable the jacking pipe to slide downwards in the central slide hole and drive the formed part to be separated from the upper die, so that the formed part cannot be separated from the upper die and cannot fall onto the guide slide column, and the separation of the injection molding part and the injection molding machine is influenced.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an overall cross-sectional schematic view of the present invention;
FIG. 3 is a first schematic view of the supporting frame of the present invention;
FIG. 4 is a schematic view of a second embodiment of the present invention;
FIG. 5 is a schematic view of a melt mechanism of the present invention;
FIG. 6 is a schematic view of the feed mechanism of the present invention;
FIG. 7 is a schematic view of the injection mechanism of the present invention;
FIG. 8 is a schematic view of the lower die holder configuration of the present invention;
FIG. 9 is a schematic cross-sectional view of the lower die holder of the present invention;
FIG. 10 is a schematic view of the structure of the tightening mechanism of the present invention;
FIG. 11 is a schematic view of the adjustment mechanism of the present invention;
fig. 12 is a schematic structural view of the slide bar guide mechanism of the present invention.
In the figure: a support frame 1; a main board 1-1; a support plate 1-2; 1-3 of a fixed sliding plate; 1-4 of an upper die; mounting plates 1-5; supporting a sliding rod 1-6; a bottom plate 1-7; 1-8 parts of a base; a melt mechanism 2; a feed inlet 2-1; a solution pipe 2-2; 2-3 of a heating pipe; 2-4 parts of an injection taper pipe head; a feeding mechanism 3; a feeding motor 3-1; a feeding shaft 3-2; pushing a piston 3-3; 3-4 parts of a feeding spiral plate; an injection mechanism 4; a lifting plate 4-1; 4-2 of an injection oil cylinder; a lower die carrier 5; 5-1 of a lower die; 5-2 of a central slide hole; 5-3 of a supporting plate; 5-4 parts of a C-shaped plate; 5-5 of a connecting ring; 5-6 of a communicating seam; opening the mould oil cylinder 5-7; a jacking mechanism 6; tightly propping the circular ring 6-1; 6-2 of a jacking pipe; 6-3 of an internal thread ring; 6-4 of a vent groove; an adjusting mechanism 7; a center plate 7-1; 7-2 parts of external thread pipe; a transmission gear 7-3; 7-4 of a connector head; 7-5 of an adjusting motor; 7-6 of a vent hole; a slide bar guide mechanism 8; a worm motor 8-1; a worm gear shaft 8-2; 8-3 of a rotating plate; 8-4 of a guide sliding column; a getter pump 9.
Detailed Description
The present invention is described in further detail below with reference to figures 1-12.
The fixed connection in the device can be fixed by welding, thread fixing and the like, the rotary connection can be realized by baking the bearing on a shaft, a spring retainer groove or an inter-shaft baffle is arranged on the shaft or a shaft hole, the axial fixation of the bearing is realized by clamping an elastic retainer ring in the spring retainer groove or the inter-shaft baffle, and the rotation is realized by the relative sliding of the bearing; different connection modes are used in combination with different use environments.
The first embodiment is as follows:
as shown in fig. 1-12, an injection molding system comprises a support frame 1, a melt mechanism 2, a feeding mechanism 3, an injection mechanism 4, a lower mold frame 5, a jacking mechanism 6, an adjusting mechanism 7, a slide bar guiding mechanism 8 and a suction pump 9, the melting mechanism 2 is fixedly connected on the support frame 1, the injection mechanism 4 is connected at the upper end of the support frame 1, the feeding mechanism 3 is connected on the injection mechanism 4, the feeding mechanism 3 is connected with the melting mechanism 2 in a sliding way, the lower die frame 5 is connected at the lower end of the support frame 1, the jacking mechanism 6 is connected in the lower die frame 5 in a sliding way, the adjusting mechanism 7 is connected on the lower die carrier 5, the adjusting mechanism 7 is connected with the jacking mechanism 6 through screw threads, the air suction pump 9 is fixedly connected to the lower die carrier 5, the air suction pump 9 is communicated with the adjusting mechanism 7 through an air pipe, and the slide bar guide mechanism 8 is connected to the support frame 1;
when the device is used, the injection oil cylinder 4-2 and the die sinking oil cylinder 5-7 are connected with an external hydraulic oil control mechanism, plastic particles are added into the feed opening 2-1, the lifting plate 4-1 is lifted by extending the injection oil cylinder 4-2, and the pushing piston 3-3 is driven by the feed shaft 3-2 to slide upwards to the uppermost end of the material dissolving pipe 2-2, so that the feed opening 2-1 is communicated with the material dissolving pipe 2-2, and the plastic particles slide into the material dissolving pipe 2-2 under the action of gravity; starting the heating pipe 2-3 to heat the plastic in the material dissolving pipe 2-2, starting the feeding motor 3-1 to drive the feeding shaft 3-2 to drive the feeding spiral plate 3-4 to rotate, and conveying and stirring the semi-molten plastic particles downwards, so that air in the plastic is discharged while the plastic is prevented from blocking the material dissolving pipe 2-2; after the plastic particles are completely melted, a valve on the injection taper pipe head 2-4 is opened, the lifting plate 4-1 is lowered by shortening the injection oil cylinder 4-2, so that the pushing piston 3-3 is driven by the feeding shaft 3-2 to slide downwards to extrude the melted plastic, and the melted plastic is extruded into the upper die 1-4 and the lower die 5-1; after the molten plastic is cooled and formed, a lower die 5-1 is driven to slide downwards through a die opening oil cylinder 5-7, an adjusting motor 7-5 is started to drive an external threaded pipe 7-2 to rotate, the external threaded pipe 7-2 is in threaded connection with an internal threaded ring 6-3, a jacking pipe 6-2 slides upwards in a central sliding hole 5-2, and a formed piece is jacked at the lower end of an upper die 1-4 through a jacking circular ring 6-1; after the lower die 5-1 moves downwards to the lowest position, the worm motor 8-1 is started to drive the two worm wheel shafts 8-2, the two worm wheel shafts 8-2 drive the two guide sliding columns 8-4 to simultaneously rotate downwards from the front end and the rear end of the upper die 1-4 to the position right below the upper die 1-4 through the rotating plate 8-3 and then stop, the air suction pump 9 is started, the formed part is sucked tightly through the connecting tube head 7-4, the external thread tube 7-2, the vent hole 7-6, the vent groove 6-4 and the inner hole of the tightening ring 6-1, the adjusting motor 7-5 is started reversely, the transmission tightening tube 6-2 slides downwards in the central sliding hole 5-2 and drives the formed part to separate from the upper die 1-4, the air suction pump 9 is stopped, the tightening tube 6-2 continuously slides downwards to the position matched with the lower die 5-1 and stops, when the formed part moves downwards to the two guide sliding columns 8-4 along with the tightly-pushed circular ring 6-1, the formed part is retained on the two guide sliding columns 8-4 by the two guide sliding columns 8-4 and slides downwards along the two guide sliding columns 8-4 in an inclined mode under the influence of gravity, and the separation of the injection molding part and the injection molding machine is completed.
The second embodiment is as follows:
as shown in fig. 1-12, the supporting frame 1 comprises a main plate 1-1, a supporting plate 1-2, a fixed sliding plate 1-3, and an upper mold 1-4, the device comprises a mounting plate 1-5, supporting slide bars 1-6, a bottom plate 1-7 and bases 1-8, wherein the supporting plate 1-2 is fixedly connected to the upper end face of a main plate 1-1, a fixed sliding plate 1-3 is fixedly connected to the upper end of the supporting plate 1-2, an upper die 1-4 and the mounting plate 1-5 are fixedly connected to the lower end face of the main plate 1-1, four supporting slide bars 1-6 are arranged, the upper ends of the four supporting slide bars 1-6 are respectively and fixedly connected to four corners of the main plate 1-1, the lower ends of the four supporting slide bars 1-6 are respectively and fixedly connected to four corners of the bottom plate 1-7, and the four corners of the lower end of the bottom plate 1;
the third concrete implementation mode:
as shown in fig. 1-12, the melting mechanism 2 includes a feeding port 2-1, a melting pipe 2-2, a heating pipe 2-3 and an injection taper head 2-4, the melting pipe 2-2 is fixedly connected to the middle of the supporting plate 1-2, the lower end of the melting pipe 2-2 is fixedly connected to the injection taper head 2-4, the injection taper head 2-4 is provided with a valve, the heating pipe 2-3 is fixedly connected to the outer wall of the melting pipe 2-2, the upper end of the melting pipe 2-2 is provided with the feeding port 2-1, and the injection taper head 2-4 is communicated with the upper mold 1-4;
the feed inlet 2-1 is used for adding plastic particles to the device, and the heating pipe 2-3 is used for heating and melting the plastic particles in the material dissolving pipe 2-2.
The fourth concrete implementation mode:
as shown in fig. 1-12, the feeding mechanism 3 includes a feeding motor 3-1, a feeding shaft 3-2, a pushing piston 3-3 and a feeding spiral plate 3-4, the feeding motor 3-1 is in transmission connection with the upper end of the feeding shaft 3-2, the pushing piston 3-3 and the feeding spiral plate 3-4 are both fixedly connected to the feeding shaft 3-2, the pushing piston 3-3 is located above the feeding spiral plate 3-4, and the pushing piston 3-3 is slidably connected in the material dissolving pipe 2-2;
the fifth concrete implementation mode:
as shown in fig. 1-12, the injection mechanism 4 comprises a lifting plate 4-1 and an injection cylinder 4-2, the lifting plate 4-1 is slidably connected to a fixed sliding plate 1-3, the upper end of the injection cylinder 4-2 is fixedly connected to the lifting plate 4-1, the lower end of the injection cylinder 4-2 is fixedly connected to a supporting plate 1-2, a feeding shaft 3-2 is rotatably connected to the lifting plate 4-1, and a feeding motor 3-1 is fixedly connected to the lifting plate 4-1;
the injection oil cylinder 4-2 extends to drive the lifting plate 4-1 to slide upwards, the injection oil cylinder 4-2 shortens to drive the lifting plate 4-1 to slide downwards, the lifting plate 4-1 is lifted to drive the pushing piston 3-3 to slide in the material dissolving pipe 2-2 through the feeding shaft 3-2, when the pushing piston 3-3 is at the uppermost end, the feeding port 2-1 is communicated with the material dissolving pipe 2-2 so as to facilitate the plastic particles to slide into the material dissolving pipe 2-2 to be melted, when the pushing piston 3-3 slides downwards, the pushing piston 3-3 blocks the feeding port 2-1 and the material dissolving pipe 2-2 so as to facilitate the pushing piston 3-3 to extrude the melted plastic, and simultaneously, the feeding shaft 3-2 is driven by the feeding motor 3-1 to drive the feeding spiral plate 3-4 to rotate, so as to convey and stir the semi-melted plastic particles downwards, the air in the plastic is discharged while the plastic is prevented from blocking the solution pipe 2-2.
The sixth specific implementation mode:
as shown in the figures 1-12, the lower mold frame 5 comprises a lower mold 5-1, a central slide hole 5-2, a support plate 5-3, a C-shaped plate 5-4, a connecting ring 5-5, a communicating slit 5-6 and a mold opening cylinder 5-7, the center of the lower mold 5-1 is provided with the central slide hole 5-2, the lower mold 5-1 is fixedly connected with the upper end surface of the support plate 5-3, the C-shaped plate 5-4 is fixedly connected with the lower end surface of the support plate 5-3, the connecting ring 5-5 is fixedly connected with the lower end of the C-shaped plate 5-4, the lower end of the connecting ring 5-5 is fixedly connected with the mold opening cylinder 5-7, the mold opening cylinder 5-7 is fixedly connected with a bottom plate 1-7, the side end of the connecting ring 5-5 is provided with the communicating slit 5-6, the support plate, the getter pump 9 is fixedly connected to the side end of the C-shaped plate 5-4;
the lower die 5-1 is matched with the upper die 1-4 to cool and mold the molten plastic, and a communicating seam 5-6 on the connecting ring 5-5 is used for a gas pipe connected with a connecting pipe head 7-4 and a gas suction pump 9 to penetrate through.
The seventh embodiment:
as shown in fig. 1-12, the tightening mechanism 6 includes a tightening ring 6-1, a tightening pipe 6-2, an internal thread ring 6-3 and an air groove 6-4, the inner wall of the tightening pipe 6-2 is provided with the air groove 6-4, the upper end of the tightening pipe 6-2 is provided with the tightening ring 6-1, the lower end of the tightening pipe 6-2 is provided with the internal thread ring 6-3, and the tightening ring 6-1, the tightening pipe 6-2 and the internal thread ring 6-3 are all slidably connected in the central slide hole 5-2;
the specific implementation mode is eight:
as shown in figures 1-12, the adjusting mechanism 7 comprises a central plate 7-1, an external threaded pipe 7-2, a transmission gear 7-3, a connector 7-4, an adjusting motor 7-5 and a vent hole 7-6, wherein the central plate 7-1 is fixedly connected to the upper end of the external threaded pipe 7-2, the connector 7-4 is fixedly connected to the lower end of the external threaded pipe 7-2, the transmission gear 7-3 is fixedly connected to the external threaded pipe 7-2, the upper end of the external threaded pipe 7-2 is provided with the vent hole 7-6, the lower end of the external threaded pipe 7-2 is rotatably connected to a C-shaped plate 5-4, the external threaded pipe 7-2 is in threaded connection with the internal threaded ring 6-3, the central plate 7-1 is slidably connected to the top tightening ring 6-1 and the top tightening pipe 6-2, the adjusting motor 7-5 is fixedly connected to the C-shaped plate 5-4, the adjusting motor 7-5 is in meshed transmission connection with the transmission gear 7-3, and the connector head 7-4 is communicated with the air suction pump 9 through an air pipe;
the specific implementation method nine:
as shown in fig. 1-12, the slide bar guide mechanism 8 comprises a worm motor 8-1, a worm gear shaft 8-2, the worm motor 8-1 is fixedly connected to the main board 1-1, an output shaft of the worm motor 8-1 penetrates through the main board 1-1 and is fixedly connected with a worm, two worm wheel shafts 8-2 are arranged, the two worm wheel shafts 8-2 are symmetrically and rotatably connected to the mounting board 1-5, the worm motor 8-1 is positioned between the two worm wheel shafts 8-2 and is in meshing transmission connection with the two worm wheel shafts 8-2 through the worm and gear, the rotating plates 8-3 are fixedly connected to the worm wheel shafts 8-2, and the lower ends of the two rotating plates 8-3 are obliquely and fixedly connected with the guide sliding columns 8-4;
after the molten plastic is cooled and formed, a lower die 5-1 is driven to slide downwards through a die opening oil cylinder 5-7, an adjusting motor 7-5 is started to drive an external threaded pipe 7-2 to rotate, the external threaded pipe 7-2 is in threaded connection with an internal threaded ring 6-3, a jacking pipe 6-2 slides upwards in a central sliding hole 5-2, and a formed piece is jacked at the lower end of an upper die 1-4 through a jacking circular ring 6-1;
after the lower die 5-1 moves downwards to the lowest position, the worm motor 8-1 is started to drive the two worm wheel shafts 8-2, the two worm wheel shafts 8-2 drive the two guide sliding columns 8-4 to simultaneously rotate downwards from the front end and the rear end of the upper die 1-4 to the position right below the upper die 1-4 through the rotating plate 8-3 and then stop, the air suction pump 9 is started, the formed part is sucked tightly through the connecting tube head 7-4, the external thread tube 7-2, the vent hole 7-6, the vent groove 6-4 and the inner hole of the tightening ring 6-1, the adjusting motor 7-5 is started reversely, the transmission tightening tube 6-2 slides downwards in the central sliding hole 5-2 and drives the formed part to separate from the upper die 1-4, the air suction pump 9 is stopped, the tightening tube 6-2 continuously slides downwards to the position matched with the lower die 5-1 and stops, when the formed part moves downwards to the two guide sliding columns 8-4 along with the tightly-pushed circular ring 6-1, the formed part is retained on the two guide sliding columns 8-4 by the two guide sliding columns 8-4 and slides downwards along the two guide sliding columns 8-4 in an inclined mode under the influence of gravity, and the separation of the injection molding part and the injection molding machine is completed.
The detailed implementation mode is ten:
1-12, a method of injection molding in an injection molding system, the method comprising the steps of:
step 1: after plastic particles are added into a feeding port 2-1, a lifting plate 4-1 is lifted by extending an injection oil cylinder 4-2, and meanwhile, a pushing piston 3-3 is driven by a feeding shaft 3-2 to slide upwards to the uppermost end of a material dissolving pipe 2-2, so that the feeding port 2-1 is communicated with the material dissolving pipe 2-2, and the plastic particles slide into the material dissolving pipe 2-2 under the action of gravity;
step 2: starting the heating pipe 2-3 to heat the plastic in the material dissolving pipe 2-2, starting the feeding motor 3-1 to drive the feeding shaft 3-2 to drive the feeding spiral plate 3-4 to rotate, and conveying and stirring the semi-molten plastic particles downwards, so that air in the plastic is discharged while the plastic is prevented from blocking the material dissolving pipe 2-2;
and step 3: after the plastic particles are completely melted, a valve on the injection taper pipe head 2-4 is opened, the lifting plate 4-1 is lowered by shortening the injection oil cylinder 4-2, so that the pushing piston 3-3 is driven by the feeding shaft 3-2 to slide downwards to extrude the melted plastic, and the melted plastic is extruded into the upper die 1-4 and the lower die 5-1;
and 4, step 4: after the molten plastic is cooled and formed, a lower die 5-1 is driven to slide downwards through a die opening oil cylinder 5-7, an adjusting motor 7-5 is started to drive an external threaded pipe 7-2 to rotate, the external threaded pipe 7-2 is in threaded connection with an internal threaded ring 6-3, a jacking pipe 6-2 slides upwards in a central sliding hole 5-2, and a formed piece is jacked at the lower end of an upper die 1-4 through a jacking circular ring 6-1;
and 5: after the lower die 5-1 moves downwards to the lowest position, the worm motor 8-1 is started to drive the two worm wheel shafts 8-2, the two worm wheel shafts 8-2 drive the two guide sliding columns 8-4 to simultaneously rotate downwards from the front end and the rear end of the upper die 1-4 to the position right below the upper die 1-4 through the rotating plate 8-3 and then stop, the air suction pump 9 is started, the formed part is sucked tightly through the connecting tube head 7-4, the external thread tube 7-2, the vent hole 7-6, the vent groove 6-4 and the inner hole of the tightening ring 6-1, the adjusting motor 7-5 is started reversely, the transmission tightening tube 6-2 slides downwards in the central sliding hole 5-2 and drives the formed part to separate from the upper die 1-4, the air suction pump 9 is stopped, the tightening tube 6-2 continuously slides downwards to the position matched with the lower die 5-1 and stops, when the formed part moves downwards to the two guide sliding columns 8-4 along with the tightly-pushed circular ring 6-1, the formed part is retained on the two guide sliding columns 8-4 by the two guide sliding columns 8-4 and slides downwards along the two guide sliding columns 8-4 in an inclined mode under the influence of gravity, and the separation of the injection molding part and the injection molding machine is completed.
The invention relates to an injection molding system and an injection molding method, which have the use principle that: when the plastic particle injection device is used, after plastic particles are added into the feeding port 2-1, the lifting plate 4-1 is lifted through the extension of the injection oil cylinder 4-2, meanwhile, the pushing piston 3-3 is driven by the feeding shaft 3-2 to slide upwards to the uppermost end of the material dissolving pipe 2-2, so that the feeding port 2-1 is communicated with the material dissolving pipe 2-2, and the plastic particles slide into the material dissolving pipe 2-2 under the action of gravity; starting the heating pipe 2-3 to heat the plastic in the material dissolving pipe 2-2, starting the feeding motor 3-1 to drive the feeding shaft 3-2 to drive the feeding spiral plate 3-4 to rotate, and conveying and stirring the semi-molten plastic particles downwards, so that air in the plastic is discharged while the plastic is prevented from blocking the material dissolving pipe 2-2; after the plastic particles are completely melted, a valve on the injection taper pipe head 2-4 is opened, the lifting plate 4-1 is lowered by shortening the injection oil cylinder 4-2, so that the pushing piston 3-3 is driven by the feeding shaft 3-2 to slide downwards to extrude the melted plastic, and the melted plastic is extruded into the upper die 1-4 and the lower die 5-1; after the molten plastic is cooled and formed, a lower die 5-1 is driven to slide downwards through a die opening oil cylinder 5-7, an adjusting motor 7-5 is started to drive an external threaded pipe 7-2 to rotate, the external threaded pipe 7-2 is in threaded connection with an internal threaded ring 6-3, a jacking pipe 6-2 slides upwards in a central sliding hole 5-2, and a formed piece is jacked at the lower end of an upper die 1-4 through a jacking circular ring 6-1; after the lower die 5-1 moves downwards to the lowest position, the worm motor 8-1 is started to drive the two worm wheel shafts 8-2, the two worm wheel shafts 8-2 drive the two guide sliding columns 8-4 to simultaneously rotate downwards from the front end and the rear end of the upper die 1-4 to the position right below the upper die 1-4 through the rotating plate 8-3 and then stop, the air suction pump 9 is started, the formed part is sucked tightly through the connecting tube head 7-4, the external thread tube 7-2, the vent hole 7-6, the vent groove 6-4 and the inner hole of the tightening ring 6-1, the adjusting motor 7-5 is started reversely, the transmission tightening tube 6-2 slides downwards in the central sliding hole 5-2 and drives the formed part to separate from the upper die 1-4, the air suction pump 9 is stopped, the tightening tube 6-2 continuously slides downwards to the position matched with the lower die 5-1 and stops, when the formed part moves downwards to the two guide sliding columns 8-4 along with the tightly-pushed circular ring 6-1, the formed part is retained on the two guide sliding columns 8-4 by the two guide sliding columns 8-4 and slides downwards along the two guide sliding columns 8-4 in an inclined mode under the influence of gravity, and the separation of the injection molding part and the injection molding machine is completed.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and that various changes, modifications, additions and substitutions which are within the spirit and scope of the present invention and which may be made by those skilled in the art are also within the scope of the present invention.
Claims (10)
1. The utility model provides an injection molding system, includes support frame (1), melt mechanism (2), feeding mechanism (3), injection mechanism (4), lower die carrier (5), tight mechanism in top (6), adjustment mechanism (7), slide bar guiding mechanism (8) and aspirator pump (9), its characterized in that: melt mechanism (2) fixed connection on support frame (1), injection mechanism (4) connect the upper end at support frame (1), feeding mechanism (3) connect on injection mechanism (4), feeding mechanism (3) and melt mechanism (2) sliding connection, lower die carrier (5) connect the lower extreme at support frame (1), tight mechanism (6) sliding connection in die carrier (5) down, adjustment mechanism (7) connect under on die carrier (5), adjustment mechanism (7) and tight mechanism (6) in top pass through threaded connection, getter pump (9) fixed connection under on die carrier (5), getter pump (9) and adjustment mechanism (7) pass through the trachea intercommunication, slide bar guiding mechanism (8) connect on support frame (1).
2. An injection molding system as claimed in claim 1, wherein: the supporting frame (1) comprises a main board (1-1), a supporting board (1-2), fixed sliding plates (1-3), an upper die (1-4), a mounting board (1-5), supporting sliding rods (1-6), a bottom board (1-7) and a base (1-8), wherein the supporting board (1-2) is fixedly connected with the upper end face of the main board (1-1), the fixed sliding plates (1-3) are fixedly connected with the upper end of the supporting board (1-2), the upper die (1-4) and the mounting board (1-5) are both fixedly connected with the lower end face of the main board (1-1), four supporting sliding rods (1-6) are arranged, the upper ends of the four supporting sliding rods (1-6) are respectively and fixedly connected with four corners of the main board (1-1), the lower ends of the four supporting sliding rods (1-6) are respectively and fixedly connected with the four corners of the bottom board (1, the four corners of the lower end of the bottom plate (1-7) are provided with bases (1-8).
3. An injection molding system as claimed in claim 2, wherein: the material melting mechanism (2) comprises a feed inlet (2-1), a material dissolving pipe (2-2), a heating pipe (2-3) and an injection cone pipe head (2-4), the material dissolving pipe (2-2) is fixedly connected to the middle of the supporting plate (1-2), the lower end of the material dissolving pipe (2-2) is fixedly connected with the injection cone pipe head (2-4), a valve is arranged on the injection cone pipe head (2-4), the heating pipe (2-3) is fixedly connected to the outer wall of the material dissolving pipe (2-2), the feed inlet (2-1) is arranged at the upper end of the material dissolving pipe (2-2), and the injection cone pipe head (2-4) is communicated with an upper mold (1-4).
4. An injection molding system as claimed in claim 3, wherein: the feeding mechanism (3) comprises a feeding motor (3-1), a feeding shaft (3-2), a pushing piston (3-3) and a feeding spiral plate (3-4), the feeding motor (3-1) is in transmission connection with the upper end of the feeding shaft (3-2), the pushing piston (3-3) and the feeding spiral plate (3-4) are both fixedly connected onto the feeding shaft (3-2), the pushing piston (3-3) is located above the feeding spiral plate (3-4), and the pushing piston (3-3) is in sliding connection with the material dissolving pipe (2-2).
5. An injection molding system as claimed in claim 4, wherein: the injection mechanism (4) comprises a lifting plate (4-1) and an injection oil cylinder (4-2), the lifting plate (4-1) is connected onto a fixed sliding plate (1-3) in a sliding mode, the upper end of the injection oil cylinder (4-2) is fixedly connected with the lifting plate (4-1), the lower end of the injection oil cylinder (4-2) is fixedly connected with a supporting plate (1-2), a feeding shaft (3-2) is connected onto the lifting plate (4-1) in a rotating mode, and a feeding motor (3-1) is fixedly connected onto the lifting plate (4-1).
6. An injection molding system as claimed in claim 5, wherein: the lower die carrier (5) comprises a lower die (5-1), a central slide hole (5-2), a supporting plate (5-3), a C-shaped plate (5-4), a connecting ring (5-5), a communicating seam (5-6) and a die opening oil cylinder (5-7), wherein the central slide hole (5-2) is arranged at the center of the lower die (5-1), the lower die (5-1) is fixedly connected with the upper end surface of the supporting plate (5-3), the C-shaped plate (5-4) is fixedly connected with the lower end surface of the supporting plate (5-3), the connecting ring (5-5) is fixedly connected with the lower end of the C-shaped plate (5-4), the lower end of the connecting ring (5-5) is fixedly connected with the die opening oil cylinder (5-7), and the die opening oil cylinder (5-7) is fixedly connected with a bottom plate (, the side end of the connecting ring (5-5) is provided with a communicating slit (5-6), the supporting plate (5-3) is connected with the four supporting slide bars (1-6) in a sliding way, and the air suction pump (9) is fixedly connected with the side end of the C-shaped plate (5-4).
7. An injection molding system as claimed in claim 6, wherein: the jacking mechanism (6) comprises a jacking ring (6-1), a jacking pipe (6-2), an internal thread ring (6-3) and an air groove (6-4), the air groove (6-4) is formed in the inner wall of the jacking pipe (6-2), the jacking ring (6-1) is arranged at the upper end of the jacking pipe (6-2), the internal thread ring (6-3) is arranged at the lower end of the jacking pipe (6-2), and the jacking ring (6-1), the jacking pipe (6-2) and the internal thread ring (6-3) are all connected in the central sliding hole (5-2) in a sliding mode.
8. An injection molding system as claimed in claim 7, wherein: the adjusting mechanism (7) comprises a central plate (7-1), an external thread pipe (7-2), a transmission gear (7-3), a connector head (7-4), an adjusting motor (7-5) and a vent hole (7-6), the central plate (7-1) is fixedly connected to the upper end of the external thread pipe (7-2), the connector head (7-4) is fixedly connected to the lower end of the external thread pipe (7-2), the transmission gear (7-3) is fixedly connected to the external thread pipe (7-2), the upper end of the external thread pipe (7-2) is provided with the vent hole (7-6), the lower end of the external thread pipe (7-2) is rotatably connected to a C-shaped plate (5-4), the external thread pipe (7-2) is in threaded connection with an internal thread ring (6-3), the central plate (7-1) is connected in the jacking circular ring (6-1) and the jacking pipe (6-2) in a sliding manner, the adjusting motor (7-5) is fixedly connected on the C-shaped plate (5-4), the adjusting motor (7-5) is in meshing transmission connection with the transmission gear (7-3), and the connecting pipe head (7-4) is communicated with the air suction pump (9) through an air pipe.
9. An injection molding system as claimed in claim 8, wherein: the slide bar guide mechanism (8) comprises a worm motor (8-1) and a worm wheel shaft (8-2), the worm-gear drive mechanism comprises rotating plates (8-3) and guide sliding columns (8-4), a worm motor (8-1) is fixedly connected to a main plate (1-1), an output shaft of the worm motor (8-1) penetrates through the main plate (1-1) and is fixedly connected with a worm, two worm-gear shafts (8-2) are arranged, the two worm-gear shafts (8-2) are symmetrically and rotatably connected to a mounting plate (1-5), the worm motor (8-1) is located between the two worm-gear shafts (8-2) and is in meshing transmission connection with the two worm-gear shafts (8-2) through worm gears, the rotating plates (8-3) are fixedly connected to the worm-gear shafts (8-2), and the guide sliding columns (8-4) are fixedly connected to the lower ends of the two rotating plates (8-3) in an inclined mode.
10. A method of injection molding using an injection molding system of claim 9, wherein: the method comprises the following steps:
step 1: after plastic particles are added into the feeding port (2-1), the lifting plate (4-1) is lifted up through the extension of the injection oil cylinder (4-2), and meanwhile, the pushing piston (3-3) is driven by the feeding shaft (3-2) to slide upwards to the uppermost end of the material dissolving pipe (2-2), so that the feeding port (2-1) is communicated with the material dissolving pipe (2-2), and the plastic particles slide into the material dissolving pipe (2-2) under the action of gravity;
step 2: starting the heating pipe (2-3), heating the plastic in the material dissolving pipe (2-2), starting the feeding motor (3-1) to drive the feeding shaft (3-2) to drive the feeding spiral plate (3-4) to rotate, and conveying and stirring the semi-molten plastic particles downwards, so that the plastic is prevented from blocking the material dissolving pipe (2-2) and air in the plastic is discharged;
and step 3: after plastic particles are completely melted, a valve on an injection cone head (2-4) is opened, an injection oil cylinder (4-2) is shortened to lower a lifting plate (4-1), so that a feeding shaft (3-2) drives a pushing piston (3-3) to slide downwards to extrude melted plastic, and the melted plastic is extruded into an upper die (1-4) and a lower die (5-1);
and 4, step 4: after the molten plastic is cooled and formed, a lower die (5-1) is driven to slide downwards through a die opening oil cylinder (5-7), an adjusting motor (7-5) is started to drive an external threaded pipe (7-2) to rotate, the external threaded pipe (7-2) is in threaded connection with an internal threaded ring (6-3), a jacking pipe (6-2) is enabled to slide upwards in a central slide hole (5-2), and a formed part is jacked at the lower end of an upper die (1-4) through a jacking circular ring (6-1);
and 5: after the lower die (5-1) moves downwards to the lowest position, the worm motor (8-1) is started to drive the two worm wheel shafts (8-2), the two worm wheel shafts (8-2) drive the two guide sliding columns (8-4) to simultaneously rotate downwards from the front end and the rear end of the upper die (1-4) to the position right below the upper die (1-4) through the rotating plate (8-3) and stop, the air suction pump (9) is started, the formed part is sucked tightly through the connecting pipe head (7-4), the external threaded pipe (7-2), the vent hole (7-6), the vent groove (6-4) and the inner hole of the tightening circular ring (6-1), the adjusting motor (7-5) is started reversely, the tightening pipe (6-2) is driven to slide downwards in the central sliding hole (5-2), and the formed part is driven to be separated from the upper die (1-4), and stopping the air suction pump (9), continuously sliding the jacking pipe (6-2) downwards to the position matched with the lower die (5-1) to stop, and stopping the formed part when the formed part moves downwards to the two guide sliding columns (8-4) along with the jacking circular ring (6-1), blocking the formed part on the two guide sliding columns (8-4) by the two guide sliding columns (8-4), and sliding downwards along the two guide sliding columns (8-4) in an inclined manner under the influence of gravity to complete the separation of the injection molded part and the injection molding machine.
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| CN202010614459.6A CN111645287A (en) | 2020-06-30 | 2020-06-30 | Injection molding system and injection molding method |
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Cited By (1)
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| CN114506004A (en) * | 2022-02-17 | 2022-05-17 | 陶蓉蓉 | Sheet automatic separation type plastic sheet thermoplastic molding equipment |
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| EP0580258A1 (en) * | 1992-07-20 | 1994-01-26 | Koninklijke Philips Electronics N.V. | Injection-moulding apparatus and mould for use in the injection-moulding apparatus |
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Application publication date: 20200911 |