CN111941770A

CN111941770A - Combined injection molding machine

Info

Publication number: CN111941770A
Application number: CN202010811029.3A
Authority: CN
Inventors: 严开达
Original assignee: Ningbo Haizhou Machinery Co ltd
Current assignee: Ningbo Haizhou Machinery Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2020-11-17
Anticipated expiration: 2040-08-13
Also published as: CN111941770B

Abstract

The invention discloses a combined injection molding machine, which comprises a radial extrusion component arranged at one end of a unidirectional spiral extrusion rod and used for radially extruding an injection molding material, wherein the radial extrusion component is connected with an extrusion cylinder, one end of the radial extrusion component is connected with a push-out component for extruding the processed injection molding material, the push-out component is positioned in the extrusion cylinder, the top of the radial extrusion component is communicated with an exhaust pipe, the invention utilizes the one-way spiral extrusion rod to extrude the molten plastic to complete the extrusion of the molten plastic in the axial direction, utilizes the radial extrusion component to facilitate the extrusion of the molten plastic in the radial direction, facilitates the extrusion of air in the radial direction of the molten plastic, facilitates the extraction of the radially extruded air from the exhaust tube through the exhaust pump, and avoids the problems of extrusion bubbles and the like caused by the fact that the molten plastic is not extruded in the radial direction.

Description

Combined injection molding machine

Technical Field

The invention relates to the technical field of injection molding machines, in particular to a combined injection molding machine.

Background

The injection molding machine converts the plastic particles into a final plastic part through circulation of melting, injection pressure maintaining, cooling and the like. The injection molding machine comprises an injection system, a mold system, an oil pressure system, a control system, a mold locking system and other units, injection molding plastic particles are added to a storage bin during injection molding, after the plastic particles are melted by heating of injection molding, molten plastic materials are subjected to injection pressure maintaining, and the injection molding materials are extruded and molded through a screw.

When the existing injection molding machine performs injection molding, the molten plastic particles are subjected to the action of axial thrust at the pushing part of the screw at the injection molding material cylinder, so that the molten plastic particles are subjected to axial thrust molding, the molten injection molding material is not relatively extruded in the radial direction in the extrusion cylinder in the plastic injection molding process, and the molten injection molding material is extruded and molded under the action of the axial extrusion force of the screw.

Disclosure of Invention

The present invention is directed to a combined injection molding machine to solve the problems set forth in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a combination injection molding machine, includes the injection casing, injection casing one end is connected with the extrusion cylinder, and extrusion cylinder one end is connected with mould shaping chunk, extrusion cylinder internal connection has one-way spiral extrusion pole, and one-way spiral extrusion pole one end is equipped with the radial extrusion subassembly to the radial extrusion of the material of moulding plastics, radial extrusion subassembly is connected with the extrusion cylinder, and just radial extrusion subassembly one end is connected with the release subassembly of the material of moulding plastics after the extrusion processing, and releases the subassembly and be located inside the extrusion cylinder, radial extrusion subassembly top intercommunication has the exhaust tube, and exhaust tube one end is connected with the aspiration pump of usefulness of bleeding, and the aspiration pump is connected in the extrusion cylinder outside, is convenient for extrude the melting plastics through radial extrusion subassembly, is convenient for discharge the air on the radial direction of melting plastics.

Preferably, the radial extrusion component comprises a processing barrel connected inside the extrusion barrel, two feeding holes are arranged at the contact part of one side of the processing barrel and the unidirectional spiral extrusion rod, a pre-pressing shell is arranged inside the processing barrel, the exhaust tube is inserted inside the pre-pressing shell, a discharging frame door is arranged at one side of the pre-pressing shell, radial extrusion blocks are respectively arranged at two sides of the discharging frame door, a pushing rack is connected to one side of each radial extrusion block, sliding grooves are respectively arranged at two sides of the discharging frame door, the bottom of the pushing rack is slidably connected inside the sliding grooves, two rotating shafts are respectively arranged at two sides of the discharging frame door, the rotating shafts are connected to the wall of the pre-pressing shell, a pushing gear is sleeved outside each rotating shaft, the pushing gear is meshed with the pushing rack, one end of each rotating shaft is connected with a driving component for driving the rotating shaft to rotate, the, and the extrusion block is positioned in the prepressing shell, the bottom of the discharging frame door is connected with a material receiving groove plate, one end of the material receiving groove plate is connected with the wall of the processing cylinder, the discharging through groove matched with the discharging frame door is formed in the position of the wall of the processing cylinder, and the discharging through groove is matched with the discharging frame door, so that the processed molten plastic can be extruded conveniently.

Preferably, the driving assembly comprises a first driving belt arranged outside the rotating shaft, two ends of the first driving belt are respectively connected with a transmission gear in a meshed mode, one of the transmission gears is connected to the outer side of the rotating shaft in a sleeved mode, the other transmission gear is connected with a rolling shaft, a transmission assembly for driving the rolling shaft to rotate is arranged between the two rolling shafts, and the transmission assembly is connected with the wall of the processing barrel and is beneficial to driving the rotating shaft to rotate simultaneously.

Preferably, the transmission assembly comprises a motor connected to the treatment cylinder wall, the output end of the motor is connected with a driving gear, two sides of the driving gear are respectively engaged with a driven gear, one side of the driven gear is engaged with a steering gear, one side of the steering gear is connected with a driving gear, the driving gear is sleeved outside the roller, the driven gear and the steering gear are both connected with connecting rods, the connecting rods are rotatably connected with the treatment cylinder wall, and the driving gears on the roller on two sides of the motor can be conveniently driven to rotate in opposite directions.

Preferably, the pushing assembly comprises an extension rod connected to the outer side of the driven gear, the extension rod penetrates through the treatment cylinder wall in a sliding mode, a spiral pushing rod is sleeved on the outer side of the extension rod, a rotating block is connected to the joint of the extension rod and the treatment cylinder wall, the extension rod is rotatably connected with the rotating block, and the treated molten plastic can be conveniently pushed out in a two-way mode.

Preferably, material receiving groove board one end department is connected with the axis of rotation, and the axis of rotation is located the roller bearing top, the piece has been cup jointed in the axis of rotation outside, and has released the piece and be located material receiving groove board department, the axis of rotation both ends are connected with respectively and drive axis of rotation pivoted runner assembly, and the molten plastics after the extrusion of material receiving groove board department is convenient for release through pushing out the piece.

Preferably, the rotating assembly comprises a second transmission belt arranged at two ends of the rotating shaft, two ends of the second transmission belt are respectively connected with a transmission shaft block in a meshed mode, one of the transmission shaft blocks is sleeved outside the rotating shaft, the other transmission shaft block is connected with a transmission shaft rod, one end of the transmission shaft rod is connected with a first helical gear, one end of the rolling shaft is connected with a second helical gear, the first helical gear is meshed with the second helical gear, and the second helical gear is convenient to drive the first helical gear to rotate.

Preferably, the two sides of the discharging frame door are respectively connected with a material guide plate, so that the melting plastic material at the discharging frame door can be conveniently guided to the material receiving groove plate.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, when the combined injection molding machine is used for injection molding, plastic is added into the extrusion cylinder, the one-way spiral extrusion rod is used for extruding the molten plastic, so that the molten plastic is extruded in the axial direction, the radial extrusion component is used for conveniently extruding the molten plastic in the radial direction, air in the radial direction of the molten plastic is conveniently extruded, the radially extruded air is conveniently pumped out from the air pumping pipe through the air pump, and the problems that the molten plastic is not extruded in the radial direction, and the like are avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the present invention in partial cutaway configuration;

FIG. 3 is a schematic structural view of FIG. 2 with the injection housing removed;

FIG. 4 is a schematic view of the unidirectional screw extrusion stem of FIG. 3 after removal of the stem;

FIG. 5 is a schematic view of the radial extrusion assembly of the present invention;

FIG. 6 is a side view partially in section of the structure of FIG. 5;

FIG. 7 is a cross-sectional view of the back sheet of FIG. 5;

FIG. 8 is a schematic view of the front connection of the pre-pressed shell according to the present invention;

fig. 9 is a schematic view of the structure of the transmission assembly of the present invention.

In the figure: 1-an injection housing; 2-extruding a cylinder; 3-molding the block by a mold; 4-unidirectional screw extrusion rod; 5-a radial extrusion assembly; 6-a push-out assembly; 7-an exhaust pipe; 8-an air pump; 9-treatment cylinder; 10-a feed port; 11-prepressing the shell; 12-a discharge frame door; 13-radial extrusion; 14-pushing out the rack; 15-a chute; 16-a rotating shaft; 17-a push gear; 18-a drive assembly; 19-extruding the block; 20-a receiving groove plate; 21-a discharge through groove; 22-a first drive belt; 23-a transmission gear; 24-a roller; 25-a transmission assembly; 26-a motor; 27-a drive gear; 28-a driven gear; 29-a steering gear; 30-driving the gear; 31-a connecting rod; 32-an extension pole; 33-a screw propulsion rod; 34-a rotating shaft block; 35-a rotating shaft; 36-pushing out the sheet; 37-a rotating assembly; 38-a second drive belt; 39-transmission shaft block; 40-a drive shaft; 41-a first bevel gear; 42-a second bevel gear; 43-a material guide plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-9, the present invention provides a technical solution: a combined injection molding machine solves the problems that in the injection molding process of the existing combined injection molding machine, the molten plastic is extruded by axial pushing force, when the molten plastic is not stressed in the radial reverse direction, bubbles are easily formed in the radial direction of the molten plastic at the moment, and the injection molding quality is influenced, the combined injection molding machine comprises an injection shell 1, one end of the injection shell 1 is connected with an extrusion cylinder 2, one end of the extrusion cylinder 2 is connected with a mold forming block 3, a unidirectional spiral extrusion rod 4 is connected inside the extrusion cylinder 2, one end of the unidirectional spiral extrusion rod 4 is provided with a radial extrusion component 5 for radially extruding the injection molding material, the radial extrusion component 5 is connected with the extrusion cylinder 2, one end of the radial extrusion component 5 is connected with a pushing component 6 for extruding the injection molding material after extrusion treatment, the pushing component 6 is positioned inside the extrusion cylinder 2, the top of the radial extrusion component 5 is communicated with an exhaust tube 7, and one end of the air exhaust pipe 7 is connected with an air exhaust pump 8 for air exhaust, and the air exhaust pump 8 is connected to the outer side of the extrusion cylinder 2.

When using combination injection mold, the staff is through adding the plastics that will handle inside extruding barrel 2, extrude plastics heating melt through one-way spiral extrusion pole 4, when the molten plastics of extruding contacts radial extrusion subassembly 5, be convenient for extrude the radial position department of the molten plastics of extruding through radial extrusion subassembly 5, be convenient for extrude the ascending air in the radial direction of molten plastics, when extruding, install at extruding barrel 2 through the start-up and can certainly do not make up the aspiration pump 8 of position, under the effect of aspiration pump 8, be convenient for through taking out the molten plastics air that will pass through after radial extrusion subassembly 5 extrudees with aspiration tube 7, avoid the radial air that exists on the radial direction to mould plastics the influence to molten plastics. Meanwhile, after radial extrusion treatment, the treated molten plastic can be conveniently pushed out through the push-out assembly 6, and injection molding is facilitated.

In the scheme, the radial extrusion component 5 comprises a processing barrel 9 connected inside an extrusion barrel 2, two feeding holes 10 are arranged at the contact part of one side of the processing barrel 9 and a one-way spiral extrusion rod 4, a pre-pressing shell 11 is arranged inside the processing barrel 9, an exhaust pipe 7 is inserted inside the pre-pressing shell 11, a discharge frame door 12 is arranged at one side of the pre-pressing shell 11, radial extrusion blocks 13 are respectively arranged at two sides of the discharge frame door 12, a push rack 14 is connected at one side of the radial extrusion block 13, sliding grooves 15 are respectively arranged at two sides of the discharge frame door 12, the bottom of the push rack 14 is slidably connected inside the sliding grooves 15, two rotating shafts 16 are respectively arranged at two sides of the discharge frame door 12, the rotating shafts 16 are connected to the wall of the pre-pressing shell 11, a push gear 17 is sleeved outside the rotating shafts 16, the push gear 17 is meshed with the push rack 14, one end of the rotating shafts 16 is, and drive assembly 18 and a 9 wall connections of processing section of thick bamboo, the pivot 16 other end is connected with extrusion piece 19, and extrusion piece 19 is located pre-compaction casing 11 inside, ejection of compact frame door 12 bottom is connected with material receiving frid 20, and material receiving frid 20 one end and a 9 wall connections of processing section of thick bamboo, a 9 wall department of processing section of thick bamboo is equipped with the logical groove 21 of the ejection of compact that matches each other with ejection of compact frame door 12. The driving component 18 comprises a first transmission belt 22 arranged on the outer side of the rotating shaft 16, two ends of the first transmission belt 22 are respectively connected with transmission gears 23 in a meshed mode, one of the transmission gears 23 is connected to the outer side of the rotating shaft 16 in a sleeved mode, a roller 24 is connected to the other transmission gear 23, a transmission component 25 driving the roller 24 to rotate around the rotating shaft 16 is arranged between the rollers 24, and the transmission component 25 is connected with the wall of the treatment cylinder 9. The transmission assembly 25 is including connecting the motor 26 on handling a section of thick bamboo 9 wall, motor 26 output is connected with driving gear 27, and driving gear 27 both sides meshing respectively are connected with driven gear 28, the meshing of driven gear 28 one side is connected with steering gear 29, and steering gear 29 one side is connected with drive gear 30, drive gear 30 cup joints in the roller bearing 24 outside, all be connected with connecting rod 31 on driven gear 28 and the steering gear 29, and connecting rod 31 and the rotation of handling a section of thick bamboo 9 wall are connected.

The method comprises the following specific operation steps: when an operator uses the combined injection molding machine to perform injection molding, the operator adds the feeding hopper on the high extrusion cylinder 2 in the processed plastic cylinder, the plastic is pushed by the unidirectional spiral extrusion rod 4 to facilitate the extrusion of the plastic, and the extruded plastic is heated by the heating device of the injection molding machine, when the molten plastic contacts the feeding hole 10, the molten plastic is extruded into the pre-pressing shell 11 in the processing cylinder 9 under the action of the unidirectional spiral extrusion rod 4, at the moment, the motor 26 is controlled to facilitate the driving gear 27, the driven gear 28, the steering gear 29 and the driving gear 30 to rotate in sequence under the output power of the motor 26, because the steering action of the steering gear 29 makes the two opposite driving gears 30 reverse in steering, and under the rotation action of the driving gear 30, the driving device is convenient for driving the rolling shaft 24 to rotate, the transmission gear 23 is sleeved outside the rolling shaft 24, the transmission gear 23 at the other end of the first transmission belt 22 is convenient to drive to rotate under the action of the first transmission belt 22, the transmission gear 23 is sleeved outside the rotating shaft 16, so that the rotating shaft 16 is driven to rotate, the rotating shaft 16 is positioned inside the pre-pressing shell 11, so that plastic can be extruded out, after the molten plastic is extruded to the cavity inside the pre-pressing shell 11, the molten plastic can be conveniently pushed out to the discharging frame door 12 under the pushing action of the pushing piece 36, meanwhile, the pushing gear 17 is connected outside the rotating shaft 16, under the rotation condition of the rotating shaft 16, the pushing gear 17 is convenient to drive to rotate, because the pushing gear 17 is meshed with the pushing rack 14, the pushing rack 14 drives the extrusion block 19 to extrude from two sides of the molten plastic under the action of the pushing, meanwhile, the air pump 8 is used for pumping out the extruded air conveniently.

The push-out assembly 6 comprises an extension rod 32 connected to the outer side of the driven gear 28, the extension rod 32 penetrates through the wall of the treatment barrel 9 in a sliding mode, a spiral pushing rod 33 is sleeved on the outer side of the extension rod 32, a rotating block 34 is connected to the joint of the extension rod 32 and the wall of the treatment barrel 9, the extension rod 32 is connected with the rotating block 34 in a rotating mode, under the output power of the motor 26, the driving gear 27, the driven gear 28, the steering gear 29 and the driving gear 30 are driven to rotate in sequence, the spiral pushing rod 33 is connected to the outer side of the extension rod 32, the extension rod 32 is connected with the driven gear 28, the rotating directions of the two driven gears 28 are opposite, accordingly, the rotating directions of the spiral pushing rods 33 are opposite, and processed plastics can.

Connect material trough plate 20 one end department to be connected with axis of rotation 35, and axis of rotation 35 is located roller 24 top, the piece 36 that pushes away has been cup jointed in the axis of rotation 35 outside, and pushes away the piece 36 and be located material trough plate 20 department, axis of rotation 35 both ends are connected with respectively and drive axis of rotation 35 pivoted runner assembly 37. The rotating assembly 37 comprises second transmission belts 38 arranged at two ends of the rotating shaft 35, two ends of each second transmission belt 38 are respectively connected with transmission shaft blocks 39 in a meshed mode, one of the transmission shaft blocks 39 is sleeved outside the rotating shaft 35, the other transmission shaft block 39 is connected with a transmission shaft rod 40, one end of the transmission shaft rod 40 is connected with a first bevel gear 41, one end of the rolling shaft 24 is connected with a second bevel gear 42, and the first bevel gear 41 is meshed with the second bevel gear 42.

The specific operation process comprises the following steps: when the motor 26 outputs power, it is convenient to drive the driving gear 27, the driven gear 28, the steering gear 29 and the driving gear 30 to rotate successively, because the second bevel gear 42 is connected to the outer side of the roller 24, when the roller 24 rotates, it is convenient to drive the second bevel gear 42 to rotate, because the second bevel gear 42 is meshed with the first bevel gear 41, it is convenient to drive the transmission shaft lever 40 to move, and then drive the second transmission belt 38 and the rotating shaft 35 to move, it is convenient to extrude the plastic on the material receiving groove plate 20

The two sides of the discharging frame door 12 are respectively connected with a material guide plate 43, which is convenient for guiding the plastic at the discharging frame door 12.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a combination injection molding machine, includes injection casing (1), injection casing (1) one end is connected with and extrudes a section of thick bamboo (2), and extrudes a section of thick bamboo (2) one end and is connected with mould shaping chunk (3), its characterized in that: extrude a section of thick bamboo (2) internal connection and have one-way spiral extrusion pole (4), and one-way spiral extrusion pole (4) one end is equipped with radial extrusion subassembly (5) to the material radial extrusion of moulding plastics, radial extrusion subassembly (5) are connected with an extrusion section of thick bamboo (2), and radial extrusion subassembly (5) one end is connected with the release subassembly (6) of extruding the material of moulding plastics after handling, and release subassembly (6) and be located extrusion section of thick bamboo (2) inside, radial extrusion subassembly (5) top intercommunication has exhaust tube (7), and exhaust tube (7) one end is connected with aspiration pump (8) of usefulness of bleeding, and aspiration pump (8) are connected in an extrusion section of thick bamboo (2) outside.

2. A combined injection molding machine according to claim 1, characterized in that: the radial extrusion assembly (5) comprises a treatment barrel (9) connected inside an extrusion barrel (2), two feeding holes (10) are formed in the contact part of one side of the treatment barrel (9) and a one-way spiral extrusion rod (4), a pre-pressing shell (11) is arranged inside the treatment barrel (9), an air exhaust pipe (7) is inserted into the pre-pressing shell (11), a discharge frame door (12) is arranged on one side of the pre-pressing shell (11), radial extrusion blocks (13) are respectively arranged on two sides of the discharge frame door (12), a push-out rack (14) is connected to one side of each radial extrusion block (13), sliding grooves (15) are respectively arranged on two sides of the discharge frame door (12), the bottoms of the push-out racks (14) are slidably connected inside the sliding grooves (15), two rotating shafts (16) are respectively arranged on two sides of the discharge frame door (12), and the rotating shafts (16) are connected to the wall of the pre, the utility model discloses a material conveying device, including pivot (16), pivot (16) outside has cup jointed promotion gear (17), and has promoted gear (17) and release rack (14) intermeshing, pivot (16) one end is connected with and drives pivot (16) pivoted drive assembly (18), and drive assembly (18) and a processing section of thick bamboo (9) wall connection, pivot (16) other end is connected with extrusion piece (19), and extrusion piece (19) are located pre-compaction casing (11) inside, ejection of compact frame door (12) bottom is connected with material receiving frid (20), and material receiving frid (20) one end with a processing section of thick bamboo (9) wall connection, processing section of thick bamboo (9) wall department is equipped with ejection of compact logical groove (21) with ejection of compact frame door (12) looks mutual matching.

3. A combined injection molding machine according to claim 2, characterized in that: drive assembly (18) are including setting up first drive belt (22) in pivot (16) outside, first drive belt (22) both ends mesh respectively and are connected with drive gear (23), one of them drive gear (23) cup joint in pivot (16) outside, and is connected with roller bearing (24) on another drive gear (23), two be equipped with drive assembly (25) that drive roller bearing (24) pivot (16) between roller bearing (24), and drive assembly (25) and a processing section of thick bamboo (9) wall connection.

4. A combined injection molding machine according to claim 3, characterized in that: drive assembly (25) is including connecting motor (26) on handling a section of thick bamboo (9) wall, motor (26) output is connected with driving gear (27), and driving gear (27) both sides mesh respectively and are connected with driven gear (28), driven gear (28) one side meshing is connected with steering gear (29), and steering gear (29) one side is connected with and drives gear (30), it cup joints in roller bearing (24) outside to drive gear (30), all be connected with connecting rod (31) on driven gear (28) and steering gear (29), and connecting rod (31) with handle a section of thick bamboo (9) wall and rotate and be connected.

5. A combined injection moulding machine according to claim 4, characterized in that: the push-out component (6) comprises an extension rod (32) connected to the outer side of the driven gear (28), the extension rod (32) penetrates through the wall of the treatment barrel (9) in a sliding mode, a spiral push rod (33) is sleeved on the outer side of the extension rod (32), a rotating block (34) is connected to the joint of the extension rod (32) and the wall of the treatment barrel (9), and the extension rod (32) is connected with the rotating block (34) in a rotating mode.

6. A combined injection molding machine according to claim 2, characterized in that: connect material frid (20) one end department to be connected with axis of rotation (35), and axis of rotation (35) are located roller bearing (24) top, the piece (36) are pushed out in axis of rotation (35) outside cup joint, and push out piece (36) and be located material frid (20) department, axis of rotation (35) both ends are connected with respectively and drive axis of rotation (35) pivoted runner assembly (37).