Injection molding equipment

Abstract

According to a temperature control module, a mold electrical connector and a mold flow path connector are directly arranged on a mold core base, and when a forming mold is installed on the injection molding equipment, a plurality of second mold plates of the forming mold are installed on second installation faces on the outer side of the mold core base in a one-to-one correspondence mode; the mold electrical connector and the mold flow path connector can synchronously rotate along with the mold core seat and the second mold plate, and at the moment, the mold flow path connector can be selectively connected to a cooling flow path of the second mold plate for stable cooling according to actual needs of the mold. And the electric connector of the mold is selectively connected to the second mold plate so as to continuously and stably supply power to the electric heater, so that the temperature control function for different mold temperature environments is realized, the injection molding equipment can be suitable for a high-temperature production environment of a silica gel mold and a normal-temperature production environment of a plastic mold, and the universality of the injection molding equipment is improved.

Description

Technical Field

[0001] The invention relates to injection molding equipment, in particular to injection molding equipment. Background Art

[0002] A new type of injection molding equipment capable of producing two-color products includes a machine base, a first mounting frame, a core assembly, a second mounting frame and a mold opening and closing driving mechanism, wherein the first mounting frame has a first mounting surface, the core assembly has a rotatable core seat and a rotating driver, the core seat has four second mounting surfaces evenly distributed around the core seat, and the second mounting frame has a third mounting surface. Before production, the first template of the molding mold is mounted on the first mounting surface of the first mounting frame, the plurality of second templates of the molding mold are mounted one by one on the second mounting surface of the core seat, and the third template of the molding mold is mounted on the third mounting surface of the second mounting frame; then the mold opening and closing driving mechanism drives the first mounting frame, the core seat and the second mounting frame to close to each other for mold closing, wherein two second templates are molded and injected with the first template and the third template respectively, during which metal parts can be placed in other second templates or finished workpieces can be taken away; then the mold is opened and the core seat is driven to rotate by the rotating driver, so that different second templates are molded and injected with the first template and the third template in turn, and the two-color products are produced in a cycle in turn, without waiting for a long mold opening time, thereby having a high production efficiency. However, the production temperature requirements of plastic molds and silicone molds are quite different, and conventional temperature control methods are difficult to apply to the above-mentioned injection molding equipment with a rotatable core seat, making the equipment insufficiently versatile. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an injection molding device that can be suitable for the production temperature requirements of plastic molds and silicone molds.

[0004] The injection molding equipment according to the embodiment of the present invention includes a machine base, a first mounting frame, a core assembly, a second mounting frame, an opening and closing mold assembly, and a temperature control assembly. The first mounting frame is arranged on the machine base and has a first mounting surface for mounting a first template; the core assembly is arranged on the machine base, the core assembly includes a core seat and a rotation driver, the core seat is rotatably arranged on the machine base, the rotation driver is used to drive the core seat to rotate, the outer periphery of the core seat is provided with at least three second mounting surfaces for mounting a second template around its rotation axis, one of the second mounting surfaces can be opposite to the first mounting surface, the core assembly and the first mounting frame can approach or move away from each other, and a first injection molding station is arranged between the first mounting frame and the core seat; the second mounting frame is arranged on the machine base and has a third mounting surface for mounting a third template, The third mounting surface can be opposite to another of the second mounting surfaces, the second mounting frame can be close to or away from the core assembly, and a second injection molding station is arranged between the second mounting frame and the core seat; the mold opening and closing drive mechanism is arranged on the machine base and is used to drive the first mounting frame, the core assembly and the second mounting frame to be close to or away from each other; the temperature control component includes a mold electrical connector and a mold flow path connector, the mold electrical connector and the mold flow path connector are both arranged on the core seat and can rotate with the core seat, the mold electrical connector is used to be electrically connected to the electric heater on the second template, and the mold flow path connector is used to communicate with the cooling flow path on the second template.

[0005] The injection molding equipment according to the embodiment of the present invention has at least the following beneficial effects: the temperature control module arranges the mold electrical connector and the mold flow path connector directly on the core seat. When the injection molding equipment installs the molding mold, the multiple second templates of the molding mold are installed one by one on the second installation surface on the outside of the core seat. The mold electrical connector and the mold flow path connector can rotate synchronously with the core seat and the second template. At this time, according to the actual needs of the mold, the mold flow path connector can be selectively connected to the cooling flow path of the second template for stable cooling, and the mold electrical connector can be selectively connected to the second template to continuously and stably supply power to the electric heater, thereby realizing the temperature control function for different mold temperature environments, so that the injection molding equipment can be suitable for the high-temperature production environment of silicone molds and the conventional temperature production environment of plastic molds, thereby improving the versatility of the injection molding equipment.

[0006] According to some embodiments of the present invention, the core assembly includes a first carrier, the core seat is rotatably connected to the first carrier, the first carrier is connected to the machine base, the temperature control assembly includes a liquid transport type mold temperature controller, a liquid transport rotary joint is provided between the first carrier and the core seat, a first liquid transport channel is provided inside the core seat, and the liquid transport type mold temperature controller is connected to the mold flow path joint through the liquid transport rotary joint and the first liquid transport channel.

[0007] According to some embodiments of the present invention, the liquid transport rotary joint includes a liquid transport fixed sleeve and a liquid transport rotating shaft rotatably connected to the liquid transport fixed sleeve, the liquid transport fixed sleeve is arranged on the first carrier, the liquid transport rotating shaft is arranged on the mold core seat, an annular flow channel is formed between the liquid transport fixed sleeve and the liquid transport rotating shaft, the liquid transport rotating shaft is provided with a second liquid transport channel, one end of the second liquid transport channel is connected to the annular flow channel, the other end of the second liquid transport channel is connected to one end of the first liquid transport channel, and the interface of the liquid transport type mold temperature controller is connected to the annular flow channel.

[0008] According to some embodiments of the present invention, the temperature control component further includes a connecting pipe, the connecting pipe forms the first liquid transport channel, the core seat is provided with a first clearance hole, and the connecting pipe is passed through the first clearance hole.

[0009] According to some embodiments of the present invention, one end of the connecting tube is connected to the liquid transport rotating shaft, the other end of the connecting tube is connected to the mold flow path joint, and the outer wall of the connecting tube is spaced apart from the hole wall of the first clearance hole.

[0010] According to some embodiments of the present invention, the core assembly includes a second carrier, the core seat is rotatably connected to the second carrier, the second carrier is connected to the machine base, the temperature control assembly includes a temperature control box, an electrical slip ring is arranged between the second carrier and the core seat, a connecting wire is passed through the core seat, and the temperature control box is electrically connected to the electrical connector of the mold through the electrical slip ring and the connecting wire.

[0011] According to some embodiments of the present invention, the electrical slip ring includes an electrical fixing ring and an electrical rotating shaft, the electrical fixing ring is arranged on the second carrier, the electrical rotating shaft is arranged on the core seat, the electrical rotating shaft is rotatably connected to the electrical fixing ring and the two are conductive, the core seat is provided with a second clearance hole, the connecting wire is passed through the second clearance hole, the electrical rotating shaft is electrically connected to the mold electrical connector through the connecting wire, the second carrier is provided with a temperature control electrical connector, and the temperature control box is electrically connected to the electrical fixing ring through the temperature control electrical connector.

[0012] According to some embodiments of the present invention, along the direction of the rotation axis surrounding the core seat, the core seat is provided with a transition surface between two adjacent second mounting surfaces, and the mold electrical connector and the mold flow path connector are located on the transition surface.

[0013] According to some embodiments of the present invention, the core assembly includes a first carrier and a second carrier, the upper part of the core seat is rotatably connected to the second carrier, the lower part of the core seat is rotatably connected to the first carrier, the second carrier and the first carrier are slidably connected to the machine base along the left and right directions, the second mounting frame is slidably connected to the machine base along the left and right directions, the first mounting frame is fixedly connected to the machine base, and the first mounting frame, the core assembly and the second mounting frame are arranged sequentially along the left and right directions.

[0014] According to some embodiments of the present invention, the machine base is provided with a first syringe and a second syringe, the first syringe is used for injection molding at the first injection molding station, and the second syringe is used for injection molding at the second injection molding station.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 A three-dimensional schematic diagram of an injection molding device according to an embodiment of the present invention;

[0018] Figure 2 It is a partial cross-sectional schematic diagram of a mold core assembly, a liquid transport rotary joint and an electrical slip ring according to an embodiment of the present invention;

[0019] Figure 3 A partial cross-sectional schematic diagram of an electrical slip ring according to an embodiment of the present invention;

[0020] Figure 4 It is a partial cross-sectional schematic diagram of a liquid transport rotary joint according to an embodiment of the present invention.

[0021] Reference numerals:

[0022] A machine base 100, a first injection molding station 101, and a second injection molding station 102;

[0023] A first mounting frame 200, a first mounting surface 210;

[0024] The core assembly 300, the core seat 310, the second mounting surface 311, the first clearance hole 312, the second clearance hole 313, the transition surface 314, the rotation driver 320, the first carrier 330, and the second carrier 340;

[0025] A second mounting frame 400, a third mounting surface 410;

[0026] Temperature control assembly 500, mold electrical connector 510, mold flow path connector 520, connecting pipe 530, connecting wire 540, temperature control electrical connector 550;

[0027] Liquid transport rotary joint 600, liquid transport fixed sleeve 610, liquid transport rotary shaft 620, second liquid transport channel 621, annular flow channel 630, sealing ring 640, skeleton oil seal 650;

[0028] Electrical slip ring 700 , electrical fixing ring 710 , electrical rotating shaft 720 . DETAILED DESCRIPTION

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] In the description of the present invention, it should be understood that descriptions involving orientation, such as orientation or positional relationship indicated as up, down, etc., are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In the description of the present invention, "a plurality" means more than two. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Silicone molds require a higher production environment temperature, while plastic molds do not. The production temperature requirements for silicone molds and plastic molds are quite different. Conventional temperature control methods are difficult to apply to the above-mentioned injection molding equipment with a rotatable core seat, making the equipment less versatile.

[0034] Reference Figures 1 to 4, is an injection molding device according to an embodiment of the present invention, comprising a machine base 100 , a first mounting frame 200 , a core assembly 300 , a second mounting frame 400 , an opening and closing mold assembly and a temperature control assembly 500 . The first mounting frame 200 is arranged on the machine base 100 and has a first mounting surface 210 for mounting the first template; the core assembly 300 is arranged on the machine base 100, and the core assembly 300 includes a core seat 310 and a rotation driver 320. The core seat 310 is rotatably arranged on the machine base 100, and the rotation driver 320 is used to drive the core seat 310 to rotate. The outer periphery of the core seat 310 is provided with at least three second mounting surfaces 311 for mounting the second template around its rotation axis, one of which second mounting surfaces 311 can be opposite to the first mounting surface 210, the core assembly 300 and the first mounting frame 200 can approach or move away from each other, and a first injection molding station 101 is provided between the first mounting frame 200 and the core seat 310; the second mounting frame 400 is arranged on the machine base 100 and has a A third mounting surface 410, the third mounting surface 410 can be opposite to another second mounting surface 311, the second mounting frame 400 can be close to or away from the core assembly 300, and a second injection molding station 102 is arranged between the second mounting frame 400 and the core seat 310; the mold opening and closing drive mechanism is arranged on the machine base 100 and is used to drive the first mounting frame 200, the core assembly 300 and the second mounting frame 400 to be close to or away from each other; the temperature control component 500 includes a mold electrical connector 510 and a mold flow path connector 520, the mold electrical connector 510 and the mold flow path connector 520 are both arranged on the core seat 310 and can rotate with the core seat 310, the mold electrical connector 510 is used to be electrically connected to the electric heater on the second template, and the mold flow path connector 520 is used to communicate with the cooling flow path on the second template.

[0035] The temperature control module arranges the mold electrical connector 510 and the mold flow path connector 520 directly on the core seat 310. When the injection molding equipment installs the molding mold, the multiple second templates of the molding mold are installed one by one on the second mounting surface 311 on the outside of the core seat 310. The mold electrical connector 510 and the mold flow path connector 520 can rotate synchronously with the core seat 310 and the second template. At this time, according to the actual needs of the mold, the mold flow path connector 520 can be selectively connected to the cooling flow path of the second template for stable cooling, and the mold electrical connector 510 can be selectively connected to the second template to continuously and stably supply power to the electric heater, thereby realizing the temperature control function for different mold temperature environments, so that the injection molding equipment can be suitable for the high-temperature production environment of silicone molds and the conventional temperature production environment of plastic molds, thereby improving the versatility of the injection molding equipment.

[0036] It can be understood that in this embodiment, the core seat 310 has four second mounting surfaces 311, that is, four second templates can be installed at the same time, one of the second templates is molded with the first template, and another second template is molded with the third template. At this time, the other two second templates can be operated to place metal parts or remove finished workpieces. Specifically, the machine base 100 is provided with a metal loading station and a workpiece unloading station. The first injection station 101, the metal loading station, the second injection station and the workpiece unloading station are arranged in sequence around the rotation axis of the core seat 310, so that when the core seat 310 rotates, each second mounting surface 311 can pass through the first injection station 101, the metal loading station, the second injection station and the workpiece unloading station in sequence, and perform the first injection molding, placement of metal parts, second injection molding and removal of complete injection molded workpieces in sequence.

[0037] Specifically, the four second mounting surfaces 311 of the core seat 310 are evenly arranged around the rotation axis thereof, with a simple structure and convenient control. A plurality of screw holes are arranged on the first mounting surface 210, the second mounting surface 311 and the third mounting surface 410, so as to facilitate the installation of the first template, the second template and the third template of the molding mold by screw fastening.

[0038] It is conceivable that the core base 310 may also be provided with three, five or more second mounting surfaces 311, and those skilled in the art may make specific selections according to actual needs. In this case, other workstations may be arranged at different positions of the base.

[0039] In an embodiment, the core assembly 300 includes a first carrier 330, the core seat 310 is rotatably connected to the first carrier 330, the first carrier 330 is connected to the machine base 100, the temperature control assembly 500 includes a liquid transport type mold temperature controller, a liquid transport rotary joint 600 is arranged between the first carrier 330 and the core seat 310, and the core seat 310 has a first liquid transport channel inside, and the liquid transport type mold temperature controller is connected to the mold flow path joint 520 through the liquid transport rotary joint 600 and the first liquid transport channel.

[0040] The first liquid transport channel is arranged inside the core seat 310, and does not need to be exposed outside the core seat 310, and the structure layout is compact and simple. Through the liquid transport rotary joint 600, the fixed liquid transport type mold temperature controller is connected with the liquid transport channel in the rotatable core seat 310, so that the core seat 310 can form a stable cooling liquid circulation when it is rotated to any angle, and the use stability is good.

[0041] Specifically, the liquid transport type mold temperature controller is a water-cooled mold temperature controller. It is conceivable that the liquid transport type mold temperature controller can also be an oil-cooled mold temperature controller, and those skilled in the art can make a specific selection according to actual needs.

[0042] In the embodiment, the liquid transport rotary joint 600 includes a liquid transport fixed sleeve 610 and a liquid transport rotating shaft 620 rotatably connected to the liquid transport fixed sleeve 610, the liquid transport fixed sleeve 610 is arranged on the first carrier 330, the liquid transport rotating shaft 620 is arranged on the core seat 310, an annular flow channel 630 is formed between the liquid transport fixed sleeve 610 and the liquid transport rotating shaft 620, the liquid transport rotating shaft 620 is provided with a second liquid transport channel 621, one end of the second liquid transport channel 621 is connected to the annular flow channel 630, the other end of the second liquid transport channel 621 is connected to one end of the first liquid transport channel, and the interface of the liquid transport type mold temperature controller is connected to the annular flow channel 630. The above-mentioned liquid transport rotary joint 600 has a relatively simple installation method and a good use effect.

[0043] Specifically, sealing rings 640 are provided on both sides of the annular flow channel 630 along the central axis, and the sealing rings 640 can block the liquid seepage of the annular flow channel 630, and the sealing effect between the liquid transport fixed sleeve 610 and the liquid transport rotating shaft 620 is better. In addition, skeleton oil seals 650 are also provided at both ends of the liquid transport rotary joint 600 to further improve the sealing effect between the liquid transport fixed sleeve 610 and the liquid transport rotating shaft 620 and reduce the risk of leakage.

[0044] In the embodiment, the temperature control assembly 500 further includes a connecting tube 530, which forms a first liquid transport channel. The core seat 310 is provided with a first clearance hole 312, and the connecting tube 530 is passed through the first clearance hole 312. By passing through the additional connecting tube 530, the core seat 310 is passed through to form the first liquid transport channel, thereby reducing the influence of the coolant temperature on the temperature of the core seat 310, reducing the risk of poor mold clamping caused by deformation and dislocation of the core seat 310 due to temperature changes, and saving equipment maintenance costs.

[0045] In the embodiment, one end of the connecting tube 530 is connected to the liquid conveying rotating shaft 620, and the other end of the connecting tube 530 is connected to the mold flow path joint 520, and the outer wall of the connecting tube 530 is spaced apart from the hole wall of the first clearance hole 312. The two ends of the connecting tube 530 are respectively connected to the liquid conveying rotating shaft 620 and the mold flow path joint 520, and the outer wall of the connecting tube 530 is spaced apart from the hole wall of the first clearance hole 312, so that the heat at the connecting tube 530 is difficult to be directly transferred to the core seat 310, further reducing the influence of the coolant circulation on the temperature of the core seat 310, so that the core seat 310 is not prone to thermal expansion and contraction problems and the risk of mold misalignment.

[0046] In the embodiment, the core seat 310 is provided with a shaft insertion hole, and the liquid transport rotating shaft 620 is inserted into the shaft insertion hole; the outer peripheral wall of the liquid transport rotating shaft 620 is provided with an air avoidance groove, and the air avoidance groove is opposite to the hole wall of the shaft insertion hole. Since a second liquid transport channel 621 is provided in the liquid transport rotating shaft 620, that is, when the coolant circulates, the temperature of the coolant will affect the temperature of the liquid transport rotating shaft 620. Therefore, the air avoidance groove is provided on the outer peripheral wall of the liquid transport rotating shaft 620, which can reduce the contact area between the liquid transport rotating shaft 620 and the core seat 310, so that the temperature of the coolant is not easily transmitted to the core seat 310 through the liquid transport rotating shaft 620, so as to suppress the thermal barrier and cold shrinkage of the core seat 310 caused by temperature changes during operation, so that the core seat 310 is not prone to the risk of mold misalignment.

[0047] Specifically, the outer periphery of the liquid transporting rotating shaft 620 is provided with an annular air-avoiding groove, which is relatively easy to process and has a good effect of reducing the contact area. It is conceivable that in other embodiments, the air-avoiding groove can also be of other shapes, which are not limited here.

[0048] It is conceivable that, in certain embodiments, a gas avoidance groove may be provided on the wall of the shaft insertion hole, so as to reduce the contact area between the liquid transport rotating shaft 620 and the shaft insertion hole, thereby reducing heat transfer.

[0049] In the embodiment, the core assembly 300 includes a second carrier 340, the core seat 310 is rotatably connected to the second carrier 340, the second carrier 340 is connected to the machine base 100, the temperature control assembly 500 includes a temperature control box, an electrical slip ring 700 is arranged between the second carrier 340 and the core seat 310, a connecting wire 540 is passed through the core seat 310, and the temperature control box is electrically connected to the mold electrical connector 510 through the electrical slip ring 700 and the connecting wire 540.

[0050] By passing the connecting wire 540 through the core seat 310, the risk of exposing the connecting wire 540 is avoided, the structural layout is compact, and the temperature control box fixed on the machine base 100 is electrically connected to the mold electrical connector 510 on the rotatable core seat 310 through the electrical slider, so that the second template on the core seat 310 can be provided with stable power supply, adapting to the high temperature environment requirements of the silicone mold, and improving the high temperature stability of the equipment. The structure is relatively simple.

[0051] In an embodiment, the electrical slip ring 700 includes an electrical fixed ring 710 and an electrical rotating shaft 720. The electrical fixed ring 710 is arranged on the second carrier 340, and the electrical rotating shaft 720 is arranged on the core seat 310. The electrical rotating shaft 720 is rotatably connected to the electrical fixed ring 710 and the two are conductive. The core seat 310 is provided with a second clearance hole 313, and the connecting wire 540 is passed through the second clearance hole 313. The electrical rotating shaft 720 is electrically connected to the mold electrical connector 510 through the connecting wire 540. The second carrier 340 is provided with a temperature control electrical connector 550, and the temperature control box is electrically connected to the electrical fixed ring 710 through the temperature control electrical connector 550. In the above structure, the temperature control box is electrically connected to the electrical fixing ring 710 through the temperature control electrical connector 550 on the second carrier 340, and the electrical rotating shaft 720 is electrically connected to the mold electrical connector 510 through the connecting wire 540. The electrical fixing ring of the electrical slip ring 700 and the electrical rotating shaft 720 are conductive, thereby realizing the electrical connection between the temperature control box and the mold electrical connector 510. The connector is simple and easy to implement. The temperature control electrical connector 550, the electrical slip ring 700 and the connecting wire 540 are all arranged at the core assembly 300, and the structural layout is more compact.

[0052] In the embodiment, the core holder 310 is provided with a transition surface 314 between two adjacent second mounting surfaces 311 along the direction of the rotation axis surrounding the core holder 310, and the mold electrical connector 510 and the mold flow path connector 520 are located on the transition surface 314. Since the second template of the molding mold will be installed at the second mounting surface 311, in order to avoid the mold electrical connector 510 and the mold flow path connector 520 interfering with the installation of the second template, the mold electrical connector 510 and the mold flow path connector 520 are arranged at the transition surface 314 to reduce interference with the installation of the second template.

[0053] In the embodiment, the core assembly 300 includes a first platform 330 and a second platform 340, the upper part of the core seat 310 is rotatably connected to the second platform 340, the lower part of the core seat 310 is rotatably connected to the first platform 330, the second platform 340 and the first platform 330 are slidably connected to the base 100 along the left and right directions, the second mounting frame 400 is slidably connected to the base 100 along the left and right directions, the first mounting frame 200 is fixedly connected to the base 100, and the first mounting frame 200, the core assembly 300 and the second mounting frame 400 are sequentially arranged along the left and right directions. By setting the first platform 330 and the second platform 340 to connect the lower part and the upper part of the core seat 310 respectively, the rotation axis position of the core seat 310 can be relatively stable, reducing the risk of the core seat 310 being misplaced; the core assembly 300 can slide left and right through the first platform 330 and the second platform 340, and the core seat 310 can rotate relative to the base 100. In cooperation with the left and right sliding of the second mounting frame 400, when the core holder 310 and the second mounting frame 400 both move toward the first mounting frame 200, the three can be molded together; when the core holder 310 and the second mounting frame 400 both move away from the first mounting frame 200, the three can be separated from the mold.

[0054] Specifically, the first carrier 330 is rotatably connected to the core base 310 by means of a rotating shaft and an axial hole; the second carrier 340 is rotatably connected to the core base 310 by means of a rotating shaft and an axial hole.

[0055] Specifically, the first carrier 330 is slidably connected to the base 100 through a slide rail and slider structure, the second carrier 340 is slidably connected to the base 100 through a guide column and slide groove structure, and the second mounting frame 400 is also slidably connected to the base 100 through a slide rail and slider structure. It is conceivable that the first carrier 330 can also be movably connected to the base 100 through a guide column and guide sleeve structure, the second carrier 340 can also be movably connected to the base 100 through a slide rail and slider structure, and the second mounting frame 400 can also be movably connected to the base 100 through a guide column and guide sleeve structure.

[0056] It is conceivable that, in other embodiments, any two of the first mounting frame 200, the core assembly 300, and the second mounting frame 400 may be movable to enable the three to move closer to or farther away from each other.

[0057] In the embodiment, the base 100 is provided with a first syringe and a second syringe, the first syringe is used for injection molding of the first injection molding station 101, and the second syringe is used for injection molding of the second injection molding station. The first syringe and the second syringe are provided to facilitate simultaneous injection molding of the first injection molding station 101 and the second injection molding station 102, and are suitable for two-color injection molding of workpieces. Specifically, the first syringe and the second syringe can adopt the existing injection molding structure, and heat the rubber material to a molten state and then inject it into the mold.

[0058] Specifically, the mold opening and closing driving mechanism can use a hydraulic cylinder, an electric cylinder or the like to drive the second mounting frame 400 to move, and drive the mold core assembly 300 to move through a gear rack structure. It is conceivable that the mold opening and closing driving mechanism can also use two oil cylinders to drive the second mounting frame 400 and the mold core assembly 300 to move respectively.

[0059] Specifically, the rotation driver 320 includes a motor and a gear set, the motor is mounted on the first carrier 330, and the motor drives the core holder 310 to rotate through the gear set. It is conceivable that in other embodiments, the rotation driver 320 may also use an internal combustion engine or other structure that outputs rotational power, or use a motor with a belt drive, a chain drive, or other structure to drive the core holder 310 to rotate.

[0060] Specifically, the liquid transport type mold temperature controller is connected to the liquid transport rotary joint 600 through multiple connecting pipes, and the ends of the multiple connecting pipes can be integrated and installed on an integrated block, which facilitates the connection between the liquid transport type mold temperature controller and the multiple connecting pipes and makes the layout more neat.

[0061] Specifically, there are multiple mold flow path connectors 520, and a certain number of mold flow path connectors 520 can also be integrated and installed on an integrated block to facilitate the connection between the mold flow path connector 520 and the mold.

[0062] Specifically, an ejector oil cylinder is also provided on the core base 310. When an ejector plate is provided at the second template for ejecting the finished workpiece, the ejector plate can be pushed and moved by the ejector oil cylinder to eject the finished workpiece at the second template, thereby improving the automation of the equipment. It can be understood that the ejector oil cylinder is provided at the second mounting surface 311 of the core base 310 and is recessed into the core base 310. Since the core base 310 has four second mounting surfaces 311, four ejector oil cylinders are also provided correspondingly, and the four ejector oil cylinders are installed on the four second mounting surfaces 311 one by one.

[0063] Specifically, the machine base 100 is also provided with a hydraulic controller, which can supply hydraulic fluid to the ejection cylinder to control the movement of the ejection cylinder.

[0064] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0065] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An injection molding device, characterized in that: include: A machine base (100); A first mounting frame (200) is arranged on the machine base (100) and has a first mounting surface (210) for mounting a first template; A core assembly (300) is arranged on the machine base (100), the core assembly (300) comprises a core seat (310) and a rotation driver (320), the core seat (310) is rotatably arranged on the machine base (100), the rotation driver (320) is used to drive the core seat (310) to rotate, at least three second mounting surfaces (311) for mounting a second template are arranged on the outer circumference of the core seat (310) around its rotation axis, one of the second mounting surfaces (311) can be opposite to the first mounting surface (210), the core assembly (300) and the first mounting frame (200) can approach or move away from each other, and a first injection molding station (101) is arranged between the first mounting frame (200) and the core seat (310); a second mounting frame (400), which is arranged on the machine base (100) and has a third mounting surface (410) for mounting a third template, wherein the third mounting surface (410) can be opposite to another of the second mounting surfaces (311), the second mounting frame (400) can be moved closer to or farther from the core assembly (300), and a second injection molding station (102) is arranged between the second mounting frame (400) and the core seat (310); A mold opening and closing driving mechanism, arranged on the machine base (100) and used to drive the first mounting frame (200), the mold core assembly (300) and the second mounting frame (400) to move closer to or farther away from each other; The temperature control component (500) includes a mold electrical connector (510) and a mold flow path connector (520). The mold electrical connector (510) and the mold flow path connector (520) are both arranged on the core base (310) and can rotate together with the core base (310). The mold electrical connector (510) is used to be electrically connected to the electric heater on the second mold plate, and the mold flow path connector (520) is used to communicate with the cooling flow path on the second mold plate.

2. The injection molding device according to claim 1, characterized in that: The core assembly (300) includes a first carrier (330), the core seat (310) is rotatably connected to the first carrier (330), the first carrier (330) is connected to the machine base (100), the temperature control assembly (500) includes a liquid transport type mold temperature controller, a liquid transport rotary joint (600) is provided between the first carrier (330) and the core seat (310), a first liquid transport channel is provided inside the core seat (310), and the liquid transport type mold temperature controller is connected to the mold flow path joint (520) through the liquid transport rotary joint (600) and the first liquid transport channel.

3. The injection molding device according to claim 2, characterized in that: The liquid transport rotary joint (600) includes a liquid transport fixed sleeve (610) and a liquid transport rotating shaft (620) rotatably connected to the liquid transport fixed sleeve (610), the liquid transport fixed sleeve (610) is arranged on the first carrier (330), the liquid transport rotating shaft (620) is arranged on the mold core seat (310), an annular flow channel (630) is formed between the liquid transport fixed sleeve (610) and the liquid transport rotating shaft (620), the liquid transport rotating shaft (620) is provided with a second liquid transport channel (621), one end of the second liquid transport channel (621) is connected to the annular flow channel (630), and the other end of the second liquid transport channel (621) is connected to one end of the first liquid transport channel, and the interface of the liquid transport type mold temperature controller is connected to the annular flow channel (630).

4. The injection molding device according to claim 3, characterized in that: The temperature control component (500) further comprises a connecting tube (530), wherein the connecting tube (530) forms the first liquid transport channel, the core seat (310) is provided with a first clearance hole (312), and the connecting tube (530) is passed through the first clearance hole (312).

5. The injection molding device according to claim 4, characterized in that: One end of the connecting tube (530) is connected to the liquid transport rotating shaft (620), and the other end of the connecting tube (530) is connected to the mold flow path joint (520). The outer wall of the connecting tube (530) is spaced apart from the hole wall of the first clearance hole (312).

6. The injection molding device according to claim 1, characterized in that: The core assembly (300) includes a second carrier (340), the core seat (310) is rotatably connected to the second carrier (340), the second carrier (340) is connected to the machine base (100), the temperature control assembly (500) includes a temperature control box, an electrical slip ring (700) is arranged between the second carrier (340) and the core seat (310), a connecting wire (540) is passed through the core seat (310), and the temperature control box is electrically connected to the mold electrical connector (510) through the electrical slip ring (700) and the connecting wire (540).

7. The injection molding device according to claim 6, characterized in that: The electrical slip ring (700) comprises an electrical fixing ring (710) and an electrical rotating shaft (720); the electrical fixing ring (710) is arranged on the second carrier (340); the electrical rotating shaft (720) is arranged on the core seat (310); the electrical rotating shaft (720) is rotatably connected to the electrical fixing ring (710) and the two are conductive; the core seat (310) is provided with a second clearance hole (313); the connecting wire (540) is passed through the second clearance hole (313); the electrical rotating shaft (720) is electrically connected to the mold electrical connector (510) through the connecting wire (540); the second carrier (340) is provided with a temperature control electrical connector (550); the temperature control box is electrically connected to the electrical fixing ring (710) through the temperature control electrical connector (550).

8. The injection molding device according to claim 1, characterized in that: Along the direction of the rotation axis surrounding the core seat (310), the core seat (310) is provided with a transition surface (314) between two adjacent second mounting surfaces (311), and the mold electrical connector (510) and the mold flow path connector (520) are located on the transition surface (314).

9. The injection molding device according to claim 1, characterized in that: The core assembly (300) comprises a first carrier (330) and a second carrier (340); the upper part of the core base (310) is rotatably connected to the second carrier (340); the lower part of the core base (310) is rotatably connected to the first carrier (330); the second carrier (340) and the first carrier (330) are slidably connected to the machine base (100) along the left-right direction; the second mounting frame (400) is slidably connected to the machine base (100) along the left-right direction; the first mounting frame (200) is fixedly connected to the machine base (100); the first mounting frame (200), the core assembly (300) and the second mounting frame (400) are arranged sequentially along the left-right direction.

10. The injection molding device according to claim 1, characterized in that: The machine base (100) is provided with a first syringe and a second syringe, the first syringe is used for injection molding at the first injection molding station (101), and the second syringe is used for injection molding at the second injection molding station.

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