Injection molding machine

Abstract

The invention discloses an injection molding machine which is characterized in that during mold closing, a first injector carries out injection molding on a forming cavity defined by a first injection molding station, a first mold plate and a second mold plate, and a second injector carries out injection molding on a forming cavity defined by another second mold plate and a third mold plate at a second injection molding station; the mold core seat is provided with three or more second mounting surfaces, so that the three or more second mold plates can be mounted on the mold core seat, and in other words, when the injection molding machine is in a mold closing state, the mold core seat is provided with three or more second mounting surfaces, so that the mold core seat can be mounted on the mold core seat; when the mold is opened, one or more second mold plates do not participate in mold closing, at the moment, the workpiece can be taken away or the metal piece can be placed at the second mold plates which do not participate in mold closing, and therefore the workpiece does not need to be taken away or the metal piece does not need to be placed in the mold opening period, the duration time of each time of mold opening is shortened, and the production efficiency is improved.

Description

Technical Field

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

[0002] Injection molding machines are usually required to make silicone products or plastic products. The injection molding machine heats the silicone raw material or plastic raw material to a molten state and injects it into the mold cavity of the molding mold. After cooling, silicone products or plastic products are obtained. The existing two-color injection molding machine includes a machine base, a fixed mounting frame, a rotating mounting frame, a first syringe and a second syringe. The front template of the molding mold is installed on the fixed mounting frame, and the rear template of the molding mold is installed on the rotating mounting frame. The front template is provided with a first groove and a second groove, and the rear template is provided with two third grooves. During production, the first template and the second template are molded together, and the first syringe injects the molding cavity surrounded by the first groove and the third groove. Then the mold is opened and the rotating mounting frame is rotated 180°, and then the mold is re-closed. At this time, the second syringe injects the molding cavity surrounded by the second groove and the third groove to form a two-color workpiece. After that, the workpiece that has been cast needs to be removed in the mold-opening state. There are also some products that need to be integrally injection molded with metal parts. When the mold is opened, the metal parts need to be placed in the mold, so that each mold opening requires a long pause, which affects production efficiency. 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 machine that can reduce the pause time when opening a mold each time and improve production efficiency.

[0004] The injection molding machine according to an embodiment of the present invention includes a machine base, a first injection molding component, a core molding component, a second injection molding component and a mold opening and closing driving mechanism. The first injection molding component is arranged on the machine base, the first injection molding component includes a first mounting frame and a first injector, the first mounting frame is provided with a first mounting surface for mounting a first template; the core molding component is arranged on the machine base, the core molding component includes a core mold seat and a rotation driver, the core mold seat is rotatably arranged on the machine base, the rotation driver is used to drive the core mold seat to rotate, the core mold 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 molding component and the first mounting frame can approach or move away from each other, and a first injection molding station is formed between the first mounting frame and the core mold seat; the second injection molding component is arranged on the machine base, the second injection molding component The component comprises a second mounting frame and a second injector, the second mounting frame is provided with 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 formed between the second mounting frame and the core seat; the mold opening and closing driving 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; wherein when the first mounting surface is opposite to one of the second mounting surfaces, the third mounting surface is opposite to another of the second mounting surfaces, the first injector is used for injection molding at the first injection molding station, and the second injector is used for injection molding at the second injection molding station.

[0005] The injection molding machine according to the embodiment of the present invention has at least the following beneficial effects: during production, the first mounting frame installs the first template, each second mounting surface of the core seat is installed with the second template, and the second mounting frame installs the third template. When closing the mold, the first syringe injects the molding cavity surrounded by the first template and the second template at the first injection molding station, and the second syringe injects the molding cavity surrounded by another second template and the third template at the second injection molding station. Then, the mold is opened and the core seat is driven to rotate by the rotary drive, so that different second templates are molded and injected with the first template and the second template in turn. Since the core seat has three or more second mounting surfaces, that is, the core seat can be installed with three or more second templates, that is, when the injection molding machine is in the mold closing state, there is one or more second templates that do not participate in the mold closing. At this time, the workpiece can be removed or the metal part can be inserted at the second template that does not participate in the mold closing, so that the workpiece does not need to be removed and the metal part is inserted during the mold opening period, thereby reducing the duration of each mold opening and improving production efficiency.

[0006] According to some embodiments of the present invention, the core base is provided with four second mounting surfaces, and all of the second mounting surfaces are evenly arranged around the rotation axis of the core base; the machine base is provided with a metal loading station and a workpiece unloading station, and the first injection molding station, the metal loading station, the second injection molding station and the workpiece unloading station are arranged sequentially around the rotation axis of the core base.

[0007] According to some embodiments of the present invention, the first mounting frame is fixedly disposed on the machine base, the core mold assembly and the second mounting frame are both movably disposed on the machine base along the left-right direction, the first mounting frame, the core mold assembly and the second mounting frame are arranged sequentially along the left-right direction, the rotation axis of the core mold base is arranged along the up-down direction, the opening and closing mold driving mechanism includes a mobile driver and a transmission assembly, the mobile driver is used to drive the second mounting frame to move, and the second mounting frame can drive the core mold assembly to move in the same direction through the transmission assembly.

[0008] According to some embodiments of the present invention, the transmission assembly includes a first rack, a transmission gear and a second rack, the first rack and the second rack are both arranged in the left and right directions, the first rack is fixedly connected to the first mounting frame, the second rack is fixedly connected to the second mounting frame, the first rack and the second rack are arranged in parallel and spaced apart, the transmission gear is rotatably connected to the core assembly, the transmission gear is located between the first rack and the second rack, the transmission gear is meshed with the first rack, and the transmission gear is meshed with the second rack.

[0009] According to some embodiments of the present invention, the core assembly includes an upper loading platform and a unloading platform, the upper part of the core seat is rotatably connected to the upper loading platform, the lower part of the core seat is rotatably connected to the unloading platform, and the upper loading platform and the unloading platform are both slidably connected to the machine base along the left and right directions.

[0010] According to some embodiments of the present invention, all the second mounting surfaces of the core seat are provided with an ejector driver, and the ejector driver has a telescopic end, and the telescopic end can be vertically telescoped relative to the corresponding second mounting surface.

[0011] According to some embodiments of the present invention, a hydraulic controller is further included, which is arranged on the machine base. The ejector driver is a hydraulic ejector driver. The core assembly includes a downloading platform, which is connected to the machine base. The lower part of the core seat is rotatably connected to the downloading platform. A first hydraulic rotary joint is arranged between the downloading platform and the core seat. The interface of the hydraulic controller is connected to the interface of the ejector driver through the first hydraulic rotary joint.

[0012] According to some embodiments of the present invention, the first hydraulic rotary joint includes a first fixed sleeve and a first rotating shaft, the first rotating shaft is rotatably connected to the first fixed sleeve, an annular flow channel is formed between the first rotating shaft and the first fixed sleeve, the first fixed sleeve is arranged on the downloading platform, one end of the first rotating shaft is inserted into the core seat, a pin hydraulic channel is arranged in the first rotating shaft, the core seat is provided with a accommodating hole, the pin driver is located in the accommodating hole, one end of the pin driver is connected to the first rotating shaft, the interface of the pin driver is communicated with the annular flow channel through the pin hydraulic channel, and the interface of the hydraulic controller is communicated with the annular flow channel through a connecting pipeline.

[0013] According to some embodiments of the present invention, a second hydraulic rotary joint is arranged between the downloading platform and the core seat, a mold hydraulic pipeline is passed through the core seat, one end of the mold hydraulic pipeline forms a mold hydraulic joint, the mold hydraulic joint is located on the outside of the core seat, and the hydraulic controller is connected to the mold hydraulic pipeline through the second hydraulic rotary joint.

[0014] According to some embodiments of the present invention, along the direction surrounding the rotation axis of the core seat, a transition surface is provided between two adjacent second mounting surfaces, and the mold hydraulic joint is located on the transition surface.

[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 is a three-dimensional schematic diagram of an injection molding machine according to an embodiment of the present invention;

[0018] Figure 2 For the embodiment of the present invention Figure 1 A local enlarged schematic diagram of point A;

[0019] Figure 3 A three-dimensional schematic diagram of a partial structure of an injection molding machine according to an embodiment of the present invention;

[0020] Figure 4 It is a three-dimensional schematic diagram of a partial structure of an injection molding machine 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 injection molding assembly 200, a first mounting frame 210, a first mounting surface 211, and a first syringe 220;

[0024] Core assembly 300, core seat 310, second mounting surface 311, transition surface 312, rotation driver 320, upper loading platform 330, unloading platform 340, ejector driver 350, first hydraulic rotary joint 360, second hydraulic rotary joint 370, mold hydraulic joint 380;

[0025] A second injection molding assembly 400, a second mounting frame 410, a third mounting surface 411, and a second syringe 420;

[0026] Transmission assembly 500, first rack 510, second rack 520;

[0027] Connect the pipeline 600. DETAILED DESCRIPTION

[0028] 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.

[0029] 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.

[0030] 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.

[0031] 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.

[0032] Reference Figures 1 to 4, is an injection molding machine according to an embodiment of the present invention, comprising a machine base 100, a first injection molding component 200, a core component 300, a second injection molding component 400 and a mold opening and closing driving mechanism. The first injection molding assembly 200 is arranged on the machine base 100, and the first injection molding assembly 200 includes a first mounting frame 210 and a first injector 220. The first mounting frame 210 is provided with a first mounting surface 211 for mounting the first template; the core molding assembly 300 is arranged on the machine base 100, and the core molding assembly 300 includes a core molding seat 310 and a rotating driver 320. The core molding seat 310 is rotatably arranged on the machine base 100, and the rotating driver 320 is used to drive the core molding seat 310 to rotate. The core molding seat 310 is provided with at least three second mounting surfaces 311 for mounting the second template around its rotation axis, and one of the second mounting surfaces 311 can be opposite to the first mounting surface 211. The core molding assembly 300 and the first mounting frame 210 can approach or move away from each other, and a first injection molding station 101 is formed between the first mounting frame 210 and the core molding seat 310; the second injection molding assembly 400 is arranged on the machine base 100. The second injection molding assembly 400 includes a second mounting frame 410 and a second syringe 420. The second mounting frame 410 is provided with a third mounting surface 411 for mounting a third template. The third mounting surface 411 can be opposite to another second mounting surface 311. The second mounting frame 410 can be close to or away from the core assembly 300. A second injection molding station 102 is formed between the second mounting frame 410 and the core seat 310. The mold opening and closing driving mechanism is arranged on the machine base 100 and is used to drive the first mounting frame 210, the core assembly 300 and the second mounting frame 410 to be close to or away from each other. When the first mounting surface 211 is opposite to one of the second mounting surfaces 311, the third mounting surface 411 is opposite to another second mounting surface 311. The first syringe 220 is used for injection molding of the first injection molding station 101, and the second syringe 420 is used for injection molding of the second injection molding station 102.

[0033] During production, the first mounting frame 210 is installed with the first template, each second mounting surface 311 of the core seat 310 is installed with the second template, and the second mounting frame 410 is installed with the third template. When the mold is closed, the first syringe 220 injects into the molding cavity surrounded by the first template and the second template at the first injection molding station 101, and the second syringe 420 injects into the molding cavity surrounded by another second template and the third template at the second injection molding station 102. Then the mold is opened and the core seat 310 is driven to rotate by the rotary driver 320, so that different second templates are molded and injected with the first template and the second template in turn. Since the core seat 310 has three or more second mounting surfaces 311, that is, the core seat 310 can be installed with three or more second templates, that is, when the injection molding machine is in the mold closing state, one or more second templates are kept not involved in the mold closing. At this time, the workpiece can be removed or the metal part can be inserted at the second template that is not involved in the mold closing, so that the workpiece does not need to be removed and the metal part is inserted during the mold opening period, thereby reducing the duration of each mold opening and improving production efficiency.

[0034] In the embodiment, the core base 310 is provided with four second mounting surfaces 311, and all the second mounting surfaces 311 are evenly arranged around the rotation axis of the core base 310; the machine base 100 is provided with a metal loading station and a workpiece unloading station, and the first injection molding station 101, the metal loading station, the second injection molding station 102 and the workpiece unloading station are sequentially arranged around the rotation axis of the core base 310. When the equipment is running, the core base 310 rotates so that each second mounting surface 311 can pass through the first injection molding station 101, the metal loading station, the second injection molding station 102 and the workpiece unloading station in sequence.

[0035] Four second mounting surfaces 311 are provided so that when the second templates on two of the second mounting surfaces 311 participate in mold closing injection molding, the second template on the second mounting surface 311 located at the metal loading station can be placed into the metal part by the production personnel or a robot, and the second template on the second mounting surface 311 located at the workpiece unloading station can be taken away by the production personnel or a robot for the finished workpiece, thereby shortening the time at each station and maximizing the production efficiency of the injection molding machine; and the four second mounting surfaces 311 all participate in different process steps at the same time, and there is no situation where a second mounting surface 311 is idle, thereby saving the equipment manufacturing cost of the injection molding machine.

[0036] It is conceivable that in other embodiments, the core seat 310 may also be provided with three, five or other numbers of second mounting surfaces 311, and those skilled in the art may make specific selections according to actual needs.

[0037] In the embodiment, the first mounting frame 210 is fixedly disposed on the machine base 100, the core assembly 300 and the second mounting frame 410 are both movably disposed on the machine base 100 along the left-right direction, the first mounting frame 210, the core assembly 300 and the second mounting frame 410 are arranged sequentially along the left-right direction, the rotation axis of the core base 310 is arranged along the up-down direction, the opening and closing mold driving mechanism includes a mobile driver and a transmission assembly 500, the mobile driver is used to drive the second mounting frame 410 to move, and the second mounting frame 410 can drive the core assembly 300 to move in the same direction through the transmission assembly 500. When the mobile driver drives the second mounting frame 410 to move away from the core assembly 300, the transmission assembly 500 drives the core assembly 300 to move away from the first mounting frame 210, so that the first mounting frame 210, the core seat 310 and the second mounting frame 410 are moved to open the mold at the same time; when the mobile driver drives the second mounting frame 410 to approach the core assembly 300, the transmission assembly 500 drives the core assembly 300 to approach the first mounting frame 210, so that the first mounting frame 210, the core seat 310 and the second mounting frame 410 are moved to close the mold at the same time. The use process is relatively simple, saving manufacturing costs.

[0038] In an embodiment, the transmission assembly 500 includes a first rack 510, a transmission gear and a second rack 520. The first rack 510 and the second rack 520 are both arranged in the left and right directions. The first rack 510 is fixedly connected to the first mounting frame 210, and the second rack 520 is fixedly connected to the second mounting frame 410. The first rack 510 and the second rack 520 are arranged in parallel and spaced apart. The transmission gear is rotatably connected to the core assembly 300. The transmission gear is located between the first rack 510 and the second rack 520. The transmission gear is meshed with the first rack 510, and the transmission gear is meshed with the second rack 520. Since the first rack 510 is fixedly connected to the first mounting frame 210 and the second rack 520 is fixedly connected to the second mounting frame 410, when the second mounting frame 410 moves away from the first mounting frame 210, the second rack 520 drives the transmission gear to rotate. Since the transmission gear is meshed with the first rack 510 at the same time, the transmission gear and the core assembly 300 are driven to move synchronously along the first rack 510 away from the first mounting frame 210. At this time, the first mounting frame 210 and the core assembly 300 move in the same direction to open the mold; similarly, when the second mounting frame 410 moves closer to the first mounting frame 210, the second rack 520 drives the transmission gear to rotate. Since the transmission gear is meshed with the first rack 510 at the same time, the transmission gear and the core assembly 300 are driven to move synchronously along the first rack 510 close to the first mounting frame 210. At this time, the first mounting frame 210 and the core assembly 300 move in the same direction to close the mold. The above structure enables the second mounting frame 410 and the core assembly 300 to move in the same direction to open and close the mold, and has a simple structure and is easy to implement.

[0039] Specifically, the moving driver may be a hydraulic cylinder, an electric cylinder or a motor in cooperation with a linear driver such as a lead screw and a lead screw nut structure to drive the second mounting bracket 410 to move.

[0040] It is conceivable that in other embodiments, the transmission assembly 500 can also be other structures, for example, the transmission assembly 500 adopts a stepped shaft, the stepped shaft is arranged in the left and right direction, and the stepped shaft has a stop step. When opening the mold, the second mounting frame 410 moves away from the first mounting frame 210. When the second mounting frame 410 moves a certain distance, the stop step on the stepped shaft contacts the push-up mold core assembly 300, and then the second mounting frame 410 pushes the mold core assembly 300 to move in the same direction through the stepped shaft to achieve mold opening; when closing the mold, the second mounting frame 410 moves toward the first mounting frame 210, the second mounting frame 410 first contacts the mold core assembly 300, and then the second mounting frame 410 pushes the mold core assembly 300 toward the first mounting frame 210 to achieve mold closing.

[0041] It is conceivable that in other embodiments, the mold opening and closing drive mechanism may also be other structures. For example, the mold opening and closing mechanism includes two cylinders, one cylinder drives the mold core assembly 300 to move, and the other cylinder drives the second mounting frame 410 to move, etc.

[0042] In the embodiment, the core assembly 300 includes an upper loading platform 330 and a lower loading platform 340. The upper portion of the core holder 310 is rotatably connected to the upper loading platform 330, and the lower portion of the core holder 310 is rotatably connected to the lower loading platform 340. Both the upper loading platform 330 and the lower loading platform 340 are slidably connected to the base 100 along the left and right directions. By providing the upper loading platform 330 and the lower loading platform 340, the rotation axis of the core holder 310 can be relatively stable, reducing the risk of misalignment when the core holder 310 rotates, and the lower loading platform 340 can play a bearing role on the core holder 310.

[0043] Specifically, the upper side of the core seat 310 is provided with an upper shaft portion, the upper platform 330 is provided with an upper shaft hole, and the upper shaft portion is rotatably connected to the upper shaft hole; the lower side of the core seat 310 is provided with a lower shaft portion, the lower platform 340 is provided with a lower shaft hole, and the lower shaft portion is rotatably connected to the lower shaft hole. It is conceivable that the upper side of the core seat 310 can also be provided with an upper shaft hole, and the upper platform 330 can be provided with an upper shaft portion; or the lower side of the core can be provided with a lower shaft hole, and the lower platform 340 can be provided with a lower shaft portion.

[0044] Specifically, a slide groove is provided downward on the lower side of the upper loading platform 330, and a Green column is provided on the base 100. The upper loading platform 330 is slidably connected to the Green column through the slide groove, so that the upper loading platform 330 can slide relative to the base 100; a slider is provided on the unloading platform 340, and a slide groove is provided on the base 100. The slider and the slide groove are slidably matched, so that the unloading platform 340 can slide relative to the base 100. Specifically, the slider of the unloading platform 340 is a multi-axis adjustment block structure, which can fine-tune the balance position of the unloading platform 340.

[0045] It is conceivable that in other embodiments, the loading platform 330 may also be movable relative to the base 100 via a guide post and guide sleeve structure or a slide rail and slider structure, and the unloading platform 340 may also be movable relative to the base 100 via a guide post and guide sleeve structure.

[0046] In the embodiment, all the second mounting surfaces 311 of the core holder 310 are provided with an ejector driver 350, and the ejector driver 350 has a telescopic end, and the telescopic end can be vertically telescopic relative to the corresponding second mounting surface 311. When the second template is mounted on the second mounting surface 311, the second template has an ejector plate, and the ejector plate can be moved to eject the injection-molded workpiece. Therefore, the ejector driver 350 is provided, and when the telescopic end moves, the ejector plate can be driven to move to eject the injection-molded workpiece, thereby realizing the automatic ejection function of the ejector plate of the mold.

[0047] In the embodiment, a hydraulic controller is further included, which is arranged on the machine base 100. The ejector driver 350 is a hydraulic ejector driver 350. The core assembly 300 includes a downloading platform 340. The lower part of the core seat 310 is rotatably connected to the downloading platform 340. A first hydraulic rotary joint 360 is arranged between the downloading platform 340 and the core seat 310. The interface of the hydraulic controller is connected to the interface of the ejector driver 350 through the first hydraulic rotary joint 360. The hydraulic controller fixed on the machine base 100 is connected to the ejector hydraulic channel in the rotatable core seat 310 and the ejector driver 350 at the second mounting surface 311 through the first hydraulic rotary joint 360. The assembly structure is relatively simple and the hydraulic transmission effect is good.

[0048] Specifically, the hydraulic controller can drive the telescopic end of the ejector driver 350 to move through the hydraulic fluid.

[0049] In the embodiment, the first hydraulic rotary joint 360 includes a first fixed sleeve and a first rotating shaft, the first rotating shaft is rotatably connected to the first fixed sleeve, an annular flow channel is formed between the first rotating shaft and the first fixed sleeve, the first fixed sleeve is arranged on the downloading platform 340, one end of the first rotating shaft is inserted into the core seat 310, an ejector hydraulic channel is arranged in the first rotating shaft, the core seat 310 is provided with a receiving hole, the ejector driver 350 is located in the receiving hole, one end of the ejector driver 350 is connected to the first rotating shaft, the interface of the ejector driver 350 is connected to the annular flow channel through the ejector hydraulic channel, and the interface of the hydraulic controller is connected to the annular flow channel through the connecting pipeline 600. The above-mentioned first hydraulic rotary joint 360 and ejector driver 350 are arranged and assembled in a simple and compact structure.

[0050] In the embodiment, a second hydraulic rotary joint 370 is arranged between the unloading platform 340 and the core seat 310, a mold hydraulic pipeline is penetrated in the core seat 310, one end of the mold hydraulic pipeline forms a mold hydraulic joint 380, and the mold hydraulic joint 380 is located outside the core seat 310. The hydraulic controller is connected to the mold hydraulic pipeline through the second hydraulic rotary joint 370. The mold core on part of the second template sometimes needs to be deformed by a hydraulic mechanism to facilitate product demoulding. Therefore, a mold hydraulic joint 380 is reserved in the core seat 310, and can be directly connected to the second template when necessary to perform hydraulic control on the second template, thereby improving the automation of the injection molding machine, and the mold hydraulic joint 380 can rotate with the core seat 310; the hydraulic controller fixed on the machine base 100 is connected to the mold hydraulic pipeline in the rotatable core seat 310 and the mold hydraulic joint 380 outside the core seat 310 through the second hydraulic rotary joint 370, and the assembly structure is relatively simple, and the hydraulic transmission effect is good.

[0051] Specifically, there are multiple ejector hydraulic channels, so the first hydraulic rotary joint 360 is also connected to the hydraulic controller through multiple connecting pipes 600. There are multiple mold hydraulic pipes, so the second hydraulic rotary joint 370 is also connected to the hydraulic controller through multiple connecting pipes 600. Multiple connecting pipes 600 can be uniformly arranged and penetrated on an integrated block to facilitate the layout of the connecting pipes 600.

[0052] Specifically, the upper loading platform 330, the lower loading platform 340 and the core holder 310 may be connected via bearings to reduce friction therebetween.

[0053] Specifically, the rotation driver 320 includes a motor, a driving gear and a driven gear, the driven gear is fixedly connected to the core holder 310, the driving gear is fixedly connected to the output shaft of the motor, and the motor is installed on the downloading platform 340. When the output shaft of the motor rotates, the driven gear and the core holder 310 are driven to rotate synchronously through the driving gear, so that different second mounting surfaces 311 are opposite to the first mounting surface 211 and the third mounting surface 411 in sequence.

[0054] It is conceivable that the rotary driver 320 may also be other structures. For example, the rotary driver 320 uses a motor in combination with a transmission structure such as a belt drive or a chain drive to drive the core base 310 to rotate; or the rotary driver 320 uses an internal combustion engine as a power source to drive the core base 310 to rotate through a transmission structure, etc., which is not limited here.

[0055] In the embodiment, a locking mechanism is also provided between the upper carrier 330 and the core base 310, and the locking mechanism includes a locking member, a locking groove and a locking driver. The core base 310 is evenly arranged with a plurality of locking grooves around its rotation axis, and the number of the locking grooves is the same as the number of the second mounting surface 311. The locking driver is connected to the upper carrier 330, and the locking member is slidably connected to the upper carrier 330 and can be opposite to one of the locking grooves. The locking driver can drive the locking member to be inserted into or out of one of the locking grooves. When the rotation driver 320 drives the core base 310 to rotate to a specified angle position, the locking driver can drive the locking member to be inserted into a certain locking groove to lock the angle position of the core base 310 relative to the upper carrier 330, so that the core base 310 maintains good stability during the process of opening and closing the mold. When the core base 310 needs to be rotated, the locking driver first drives the locking member to slide out of the locking groove, and then the core base 310 rotates again.

[0056] Specifically, the locking driver may be a structure such as a cylinder, a hydraulic cylinder or an electric cylinder, and the locking member may be a structure such as a latch.

[0057] In the embodiment, a transition surface 312 is provided between two adjacent second mounting surfaces 311 along the direction of the rotation axis surrounding the core seat 310, and the mold hydraulic joint 380 is located on the transition surface 312. The mold hydraulic joint 380 is arranged on the transition surface 312, so that the risk of interference between the second template and the mold hydraulic joint 380 can be avoided when the second mounting surface 311 is installed on the second template of the forming mold, thereby improving the convenience of use.

[0058] Since the injection molding machine can be used to produce silicone products or plastic products, the mold needs a high temperature environment when silicone is injected, and after silicone or plastic is injected, it needs to be cooled and shaped. In order to improve the versatility of the mold, a power supply component and a water cooling component can be set on the machine base 100. The water cooling component can provide conventional cooling capacity for the molding mold. When the molding mold is used to produce silicone products, the power supply component is used to supply power to the electric heater in the molding mold to form a high temperature environment. That is, the injection molding machine of this solution can be used to produce silicone products, and can also be used to produce plastic products.

[0059] Specifically, the first syringe 220 and the second syringe 420 are existing syringes, which are used to heat the raw material to a molten state and inject it into the molding cavity, and will not be described in detail here.

[0060] Specifically, the injection molding machine of this solution is preferably used for two-color injection molding. It is understandable that other types of silicone or plastic injection molding can also use the injection molding machine of this solution.

[0061] 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.

[0062] 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 machine, characterized in that: include: A machine base (100); A first injection molding assembly (200) is arranged on the machine base (100), the first injection molding assembly (200) comprising a first mounting frame (210) and a first injector (220), the first mounting frame (210) being provided with a first mounting surface (211) 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, the core seat (310) is provided with at least three second mounting surfaces (311) for mounting a second template around its rotation axis, one of the second mounting surfaces (311) can be opposite to the first mounting surface (211), the core assembly (300) and the first mounting frame (210) can approach or move away from each other, and a first injection molding station (101) is formed between the first mounting frame (210) and the core seat (310); A second injection molding assembly (400) is arranged on the machine base (100), the second injection molding assembly (400) comprises a second mounting frame (410) and a second injector (420), the second mounting frame (410) is provided with a third mounting surface (411) for mounting a third template, the third mounting surface (411) can be opposite to another of the second mounting surfaces (311), the second mounting frame (410) can be close to or away from the core mold assembly (300), and a second injection molding station (102) is formed between the second mounting frame (410) and the core mold seat (310); A mold opening and closing driving mechanism, disposed on the machine base (100) and used to drive the first mounting frame (210), the mold core assembly (300) and the second mounting frame (410) to move closer to or farther from each other; When the first mounting surface (211) is opposite to one of the second mounting surfaces (311), the third mounting surface (411) is opposite to another of the second mounting surfaces (311), the first syringe (220) is used for injection molding at the first injection molding station (101), and the second syringe (420) is used for injection molding at the second injection molding station (102).

2. The injection molding machine according to claim 1, characterized in that: The core seat (310) is provided with four second mounting surfaces (311), and all the second mounting surfaces (311) are evenly arranged around the rotation axis of the core seat (310); the machine base (100) is provided with a metal loading station and a workpiece unloading station, and the first injection molding station (101), the metal loading station, the second injection molding station (102) and the workpiece unloading station are arranged in sequence around the rotation axis of the core seat (310).

3. The injection molding machine according to claim 1, characterized in that: The first mounting frame (210) is fixedly arranged on the machine base (100), the core mold assembly (300) and the second mounting frame (410) are both movably arranged on the machine base (100) in the left-right direction, the first mounting frame (210), the core mold assembly (300) and the second mounting frame (410) are arranged in sequence in the left-right direction, the rotation axis of the core mold base (310) is arranged in the up-down direction, and the mold opening and closing driving mechanism comprises a moving driver and a transmission assembly (500), the moving driver is used to drive the second mounting frame (410) to move, and the second mounting frame (410) can drive the core mold assembly (300) to move in the same direction through the transmission assembly (500).

4. The injection molding machine according to claim 3, characterized in that: The transmission assembly (500) includes a first rack (510), a transmission gear and a second rack (520), wherein the first rack (510) and the second rack (520) are both arranged in the left-right direction, the first rack (510) is fixedly connected to the first mounting frame (210), the second rack (520) is fixedly connected to the second mounting frame (410), the first rack (510) and the second rack (520) are arranged in parallel and spaced apart, the transmission gear is rotatably connected to the core assembly (300), the transmission gear is located between the first rack (510) and the second rack (520), the transmission gear is meshed with the first rack (510), and the transmission gear is meshed with the second rack (520).

5. The injection molding machine according to claim 3, characterized in that: The core assembly (300) comprises an upper loading platform (330) and a lower loading platform (340); the upper portion of the core seat (310) is rotatably connected to the upper loading platform (330); the lower portion of the core seat (310) is rotatably connected to the lower loading platform (340); and both the upper loading platform (330) and the lower loading platform (340) are slidably connected to the machine base (100) along the left-right direction.

6. The injection molding machine according to claim 1, characterized in that: All the second mounting surfaces (311) of the core seat (310) are provided with ejector pin drivers (350), and the ejector pin drivers (350) have telescopic ends, and the telescopic ends can be vertically telescoped relative to the corresponding second mounting surfaces (311).

7. The injection molding machine according to claim 6, characterized in that: The invention also includes a hydraulic controller, which is arranged on the machine base (100); the ejector driver (350) is a hydraulic ejector driver (350); the core assembly (300) includes a download platform (340); the download platform (340) is connected to the machine base (100); the lower part of the core seat (310) is rotatably connected to the download platform (340); a first hydraulic rotary joint (360) is arranged between the download platform (340) and the core seat (310); and the interface of the hydraulic controller is connected to the interface of the ejector driver (350) through the first hydraulic rotary joint (360).

8. The injection molding machine according to claim 7, characterized in that: The first hydraulic rotary joint (360) comprises a first fixed sleeve and a first rotating shaft, the first rotating shaft is rotatably connected to the first fixed sleeve, an annular flow channel is formed between the first rotating shaft and the first fixed sleeve, the first fixed sleeve is arranged on the download platform (340), one end of the first rotating shaft is inserted into the core seat (310), an ejector hydraulic channel is arranged in the first rotating shaft, the core seat (310) is provided with a receiving hole, the ejector driver (350) is located in the receiving hole, one end of the ejector driver (350) is connected to the first rotating shaft, an interface of the ejector driver (350) is communicated with the annular flow channel through the ejector hydraulic channel, and an interface of the hydraulic controller is communicated with the annular flow channel through a connecting pipeline (600).

9. The injection molding machine according to claim 7, characterized in that: A second hydraulic rotary joint (370) is arranged between the download platform (340) and the core seat (310); a mold hydraulic pipeline is passed through the core seat (310); one end of the mold hydraulic pipeline forms a mold hydraulic joint (380); the mold hydraulic joint (380) is located on the outside of the core seat (310); and the hydraulic controller is connected to the mold hydraulic pipeline through the second hydraulic rotary joint (370).

10. The injection molding machine according to claim 9, characterized in that: Along the direction of the rotation axis surrounding the core seat (310), a transition surface (312) is provided between two adjacent second mounting surfaces (311), and the mold hydraulic joint (380) is located on the transition surface (312).

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