An electric rotary table injection molding machine and its injection molding process

Abstract

The present application relates to the technical field of injection molding machines, and particularly to an electric turntable injection molding machine and its injection molding process, including a frame, an injection molding mechanism, a rotating table, a rotating driving member, an injection molding station, and a plurality of molds. One side of the frame is provided with a discharge port, and the discharge port is located at the bottom of the injection molding mechanism. It further includes: a discharging mechanism for discharging the molded molds from the discharge port of the frame; a conveying mechanism arranged at the discharge port for conveying the molds that have been taken; and a jetting mechanism located at the discharge port and on the conveying line of the conveying mechanism for jetting and cooling the molds and the injection molded products. The present application has the effect of improving injection molding efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of injection molding machines, and particularly to an electric rotary table injection molding machine and its injection molding process. Background Art

[0002] An injection molding machine is a device for manufacturing plastic products. It melts plastic materials by heating, then injects them into a mold, forms under pressure with gas injection, and finally obtains the required plastic products.

[0003] Existing vertical rotary table injection molding machines generally have a rotating table with multiple injection stations. Molds are installed on the injection stations. When the vertical rotary table injection molding machine is working, inserts are installed in the molds, and the rotation driving member drives the rotating table to rotate, so that the molds sequentially move under the injection mechanism. The injection molding machine heats the plastic, applies high pressure to the molten plastic, and injects it to fill the mold cavity to complete the injection molding. Then, the completed inserts are sequentially taken out of the molds manually, and the inserts to be injection molded are sequentially placed into the molds.

[0004] However, in actual applications, the temperature of the molten plastic is very high. After the injection mechanism injects the molten material into the mold to form, it needs to wait for a period of time before the demolding process can be carried out. Also, after the insert is demolded, when a new insert needs to be replaced for injection molding operation, the insert needs to be installed at the designated position of the mold, and not only the installation position of the insert needs to be accurate, but also the installation stability of the insert needs to be determined. Therefore, for inserts with high quality requirements, auxiliary tools are required during the installation of the inserts, which causes the injection molding machine to stop running during the injection molding and insert installation process, resulting in a process time difference during the injection molding process of the injection molding machine. These time intervals will affect the production progress and efficiency, and the injection molding production efficiency is low. Summary of the Invention

[0005] In order to improve the injection molding efficiency, the present application provides an electric rotary table injection molding machine and its injection molding process.

[0006] On the one hand, an electric rotary table injection molding machine provided by the present application adopts the following technical solution:

[0007] An electric rotary table injection molding machine includes a frame, an injection mechanism, a rotating table, a rotation driving member, injection stations, and multiple molds. An outlet is provided on one side of the frame, and the outlet is located at the bottom of the injection mechanism. It further includes: a discharging mechanism for discharging the injection molded molds from the outlet of the frame; a conveying mechanism provided at the outlet for conveying the molds that have been taken out; and a gas injection mechanism located at the outlet and on the conveying line of the conveying mechanism for injecting gas to cool the molds and the injection molded products.

[0008] By adopting the above technical solution, when product injection molding is required, first install the insert on the mold, and then install the mold on the injection molding station, reducing the possibility of the injection molding machine pausing during the installation of the insert on the mold due to difficult insert installation. Set up a clamping mechanism to clamp the finished product away from the turntable, shortening the cooling, material taking and insert installation time of the injection molded product on the turntable, reducing manual intervention during feeding and injection molding in the injection molding process, so that the injection molding machine runs stably and regularly, which is beneficial to realizing the functions of improving injection molding efficiency and ensuring product quality at the same time.

[0009] Optionally, the air jetting mechanism includes a cold air component, a hot air component and a waste heat recovery component. The output end of the cold air component faces the discharge port. The cold air component is used to cool the injection molded product. The hot air components are arranged along the conveying direction of the conveying mechanism. The output end of the hot air component faces the conveying mechanism. The waste heat recovery component is used to recover the waste heat generated by the injection molding mechanism and convey the waste heat to the hot air component.

[0010] By adopting the above technical solution, the cold air component cools the injection molded product after injection molding, shortening the cooling time and facilitating the removal of the injection molded product from the mold. The hot air component jets hot air onto the mold from which the injection molded product has been removed to jet the debris remaining in the mold, improving the cleanliness of the mold, thereby improving the injection molding quality. Set up a waste heat recovery component to recover the waste heat generated by the injection molding mechanism and convey it to the hot air component, so that hot air is jetted onto the mold to initially heat up the mold, improving the fluidity of the molten plastic, making it easier to fill the complex parts of the mold and reducing the risk of insufficient filling.

[0011] Optionally, the cold air component includes a folding member, a one-way air inlet member and a one-way air outlet member. The folding member is hollow. One end of the folding member is connected to the injection molding mechanism, and the end of the folding member far from the injection molding mechanism is connected to the frame. The one-way air inlet member is connected to the folding member and is used to inflate the folding member. The one-way air outlet member is connected to the folding member and is used to jet air out of the folding member. The output end of the one-way air outlet member faces the discharge port.

[0012] By adopting the above technical solution, using the lifting function of the injection molding mechanism, the folding member performs an air jetting operation under the action of the one-way air inlet member and the one-way air outlet member, thereby realizing the cooling of the injection molded product, improving the cooling efficiency and reducing energy consumption.

[0013] Optionally, the hot air assembly includes an inflatable member, an airbag, and a nozzle. The inflatable member is used to inflate the airbag, the airbag is connected to the nozzle, and the nozzle faces the conveying mechanism and is used to eject the gas in the airbag onto the mold on the conveying mechanism. The waste heat recovery assembly is used to recover the waste heat generated by the injection molding mechanism and convey the waste heat to the airbag.

[0014] By adopting the above technical solution, the waste heat recovered by the waste heat recovery assembly is conveyed to the airbag for preliminary storage, so that the heat in the airbag rises and the airbag expands, thereby increasing the ejection force of the nozzle, further improving the cleanliness of the mold, and reducing the possibility of debris residue.

[0015] Optionally, the waste heat recovery assembly includes a suction member and a suction pipe. The input end of the suction pipe is located inside the mold, and the output end of the suction pipe is communicated with the airbag. The suction member is used to absorb the heat generated during injection molding and convey it to the airbag through the suction pipe.

[0016] By adopting the above technical solution, after injection molding, the mold heats up. Under the action of the suction member, the heat on the mold is absorbed, and the heat of the injection molded product is also absorbed. While cooling the injection molded product, the waste heat recovery efficiency is improved, facilitating the preheating of the mold and saving energy consumption.

[0017] Optionally, the injection molding mechanism includes a feeding assembly, an injection molding assembly, a lifting table, and a lifting driving member. The feeding assembly is located at the top of the frame, the feeding assembly is communicated with the injection molding assembly, the injection molding assembly is connected to the lifting table, the lifting driving member is connected to the frame, and the lifting driving member is used to drive the lifting table to lift. The injection molding station is located at the bottom of the injection molding assembly.

[0018] By adopting the above technical solution, when injection molding is required, the lifting driving member drives the lifting table to descend, and the lifting table drives the injection molding assembly to descend, so as to move the injection molding assembly to the mold for injection molding. After injection molding, the injection molding assembly rises under the action of the lifting driving member, so that the injection molded product is removed from the bottom of the injection molding assembly, and at the same time, a new mold moves to the bottom of the injection molding assembly for injection molding, improving the convenience of injection molding.

[0019] Optionally, the mold includes a mounting base, a bottom mold, a pressing mold, an injection molded part, and a ejector. The mounting base is installed on the injection molding station. The bottom mold is detachably installed on the mounting base. The pressing mold is connected to the bottom of the injection molding mechanism. When the injection molded part is in contact with the pressing mold, a closed injection molding cavity is formed between the injection molded part and the pressing mold. An injection molding groove is formed in the top wall of the bottom mold. The injection molded part is embedded in the injection molding groove. The ejector is located at the bottom of the injection molded part. The ejector is slidably connected to the bottom mold. The ejector is used to eject the injection molded product from the injection molded part. The discharging mechanism includes a clamping assembly, a moving guide rail, and a moving driving assembly. The clamping assembly is used to clamp the bottom mold and enable the ejector to eject the injection molded product. The moving guide rail is connected to the machine frame. The clamping assembly is slidably connected to the moving guide rail. The moving driving assembly is connected to the machine frame. The output end of the moving driving assembly is connected to the clamping assembly. The moving driving assembly is used to drive the clamping assembly to move.

[0020] By adopting the above technical solution, when it is necessary to take the injection molded product, the clamping assembly clamps the bottom mold away from the mounting base, and the ejector ejects the product from the lower mold groove. The ejected injection molded product increases the contact area with the air. When the air jet mechanism cools the injection molded product, the cooling efficiency is further improved, which is convenient for taking out the injection molded product, thereby improving the injection molding efficiency.

[0021] Optionally, clamping grooves for the clamping assembly to clamp are formed through both sides of the bottom mold. The clamping grooves communicate with the injection molding groove. The bottom of the ejector is located in the clamping direction of the clamping grooves. The ejector is connected with an ejector spring. One end of the ejector spring away from the ejector is connected to the injection molded part. The mounting base is connected with a fixing driving part. A fixing groove is formed in the mounting base. The fixing groove communicates with the injection molding groove. A fixing part is slidably connected to the mounting base. The fixing part penetrates through the fixing groove. The output end of the fixing driving part is connected to the fixing part. Fixing wings are symmetrically arranged on both sides of the fixing part. One side of the fixing wing away from the fixing part abuts against the groove wall of the injection molding groove.

[0022] By adopting the above technical solution, when it is necessary to separate the bottom mold from the mounting seat, the clamping assembly is started. The clamping end of the clamping assembly is inserted into the clamping groove. When the clamping assembly clamps, the fixing driving part is started, and the fixing driving part drives the fixing part to move towards the ejector part. When the clamping assembly clamps, the fixing driving part is started, and the fixing driving part drives the fixing part to move away from the ejector part, so that the fixing part is separated from the bottom mold, realizing the quick disassembly of the bottom mold. While the clamping assembly moves, the clamping assembly pushes the ejector part to move, so that the ejector part ejects the injection molded product. Furthermore, the quickness and stability of the separation of the bottom mold and the ejection of the injection molded product are improved.

[0023] Optionally, a plug-in part is inserted into the mounting seat. An insertion driving part is arranged in the plug-in part. The insertion driving part is connected to the mounting seat. A sliding part is arranged in the plug-in part. The output end of the insertion driving part is connected to the sliding part. An inclined groove is formed on one side of the plug-in part. A sliding rod is slidably arranged in the inclined groove. A stabilizing wing is hinged to the sliding part. The sliding rod is used to push the stabilizing wing to abut against the bottom mold, so that the mounting seat is assembled with the bottom mold.

[0024] By adopting the above technical solution, when it is necessary to install the bottom mold and the mounting seat, the insertion driving part drives the pushing part to push the sliding part to move along the plug-in part. The sliding rod slides in the inclined groove, so that the sliding rod slides in the transverse groove, making the stabilizing wing abut against the bottom mold, and the bottom mold is assembled with the mounting seat, improving the installation quickness of the bottom mold and the mounting seat.

[0025] On the other hand, an injection molding process of an electric turntable injection molding machine provided by the present application adopts the following technical solution:

[0026] An injection molding process of an electric turntable injection molding machine includes the following steps:

[0027] S1: Install the insert on the mold;

[0028] S2: Start the rotation driving part. The rotation driving part drives the rotating table to rotate, and rotates the mold with the insert installed to the bottom of the injection molding mechanism;

[0029] S3: Start the injection molding mechanism. The injection molding mechanism descends, and the injection molding mechanism injects into the mold to realize injection molding;

[0030] S4: The injection molding mechanism rises. The discharging mechanism pushes the mold after injection molding away from the injection molding station. The mold discharges from the discharging port and is pushed to the conveying mechanism;

[0031] S5: The gas ejected by the jet mechanism is ejected onto the mold located on the conveying mechanism, thereby cooling the injection-molded product and blowing debris away from the injection-molded product, and then taking out the injection-molded product. Meanwhile, steps S1 to S4 are repeated.

[0032] By adopting the above technical solution, during injection molding, the injection mechanism performs injection operations. At the same time, the mold equipped with inserts is fixed at the injection station far from the injection mechanism. During this process, the pre-installation of the inserts can be carried out, saving the possibility of the injection molding machine stopping due to the long insert installation time. When the injection process is over, the discharging mechanism performs the discharging operation on the injection-molded product. Subsequently, the turntable rotates to rotate another mold to the position below the injection mechanism for injection molding. At the same time, a new mold is directly fixed to the injection station, and the jet mechanism cools the injection-molded product, thereby shortening the waiting time, enabling the injection operation of the injection molding machine to proceed stably and continuously, reducing manual intervention in the operation process of the injection molding machine, and thus improving the injection efficiency.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. When product injection is required, first install the inserts on the mold, and then install the mold on the injection station, reducing the possibility of the injection molding machine pausing due to difficult insert installation when installing the inserts on the mold. A clamping mechanism is set to clamp the finished product away from the turntable, shortening the cooling, material taking, and insert installation time of the injection-molded product on the turntable, reducing manual intervention during the feeding and injection processes, so that the injection molding machine operates stably and regularly, which is beneficial to realizing the functions of improving injection efficiency and ensuring product quality at the same time;

[0035] 2. The waste heat recovered by the waste heat recovery component is transported to the airbag for preliminary storage, causing the heat in the airbag to rise and the airbag to expand, thereby increasing the injection force of the nozzle, improving the cleanliness of the mold, and reducing the possibility of debris residue;

[0036] 3. When a material taking operation is required for the injection-molded product, the clamping component clamps the bottom mold away from the mounting seat, and the finished product is ejected from the lower mold cavity by the ejector. The ejected injection-molded product increases the contact area with the air, and when the jet mechanism cools the injection-molded product, the cooling efficiency is further improved, facilitating the taking out of the injection-molded product, thereby improving the injection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 is the overall structural schematic diagram in the embodiment of the present application.

[0038] Figure 2 is the schematic diagram of one end of the overall discharge port in the embodiment of the present application.

[0039] Figure 3 It is a schematic diagram of the airbag position in the embodiment of the present application.

[0040] Figure 4 It is a schematic diagram of the fixed-wing structure in the embodiment of the present application.

[0041] Figure 5 It is a schematic diagram of the stable-wing structure in the embodiment of the present application.

[0042] Explanation of reference numerals:

[0043] 1. Frame; 2. Injection molding mechanism; 21. Feeding component; 22. Injection molding component; 23. Lifting table; 24. Lifting driving part; 3. Rotating table; 4. Mold; 41. Mounting seat; 42. Bottom mold; 43. Pressing mold; 431. Upper mold groove; 432. Injection molding groove; 44. C-shaped plate; 45. Injection molded part; 451. Lower mold groove; 46. Ejector part; 461. Ejector spring; 462. Limiting part; 47. Fixing driving part; 471. Fixing groove; 472. Fixing part; 473. Fixed wing; 474. Pushing block; 48. Inserting part; 481. Inserting driving part; 482. Oblique groove; 483. Sliding part; 484. Sliding rod; 485. Hinge part; 486. Stable wing; 487. Connecting part; 5. Discharging mechanism; 51. Clamping component; 52. Moving guide rail; 53. Moving driving component; 6. Conveying mechanism; 7. Jetting mechanism; 71. Folding part; 711. One-way air inlet part; 712. One-way air outlet part; 72. Inflating part; 721. Airbag; 722. Nozzle; 73. First communication hole; 731. Second communication hole; 732. Air suction part; 733. Air suction pipe. Detailed implementation manners

[0044] The following further elaborates on the present application in conjunction with the attached Figures 1-5 for a more detailed description.

[0045] On the one hand, the embodiment of the present application discloses an electric turntable injection molding machine.

[0046] Embodiment 1

[0047] Referring to Figure 1 and Figure 2, an electric rotary table injection molding machine, including a frame 1, with a discharge port provided on one side of the frame 1; an injection molding mechanism 2 arranged on the top of the frame 1, the injection molding mechanism 2 can perform lifting operations on the top of the frame 1, and the discharge port is located at the bottom of the injection molding mechanism 2; a rotating table 3 arranged at the bottom of the injection molding mechanism 2, the rotating table 3 is rotatably connected to the top of the frame 1; a rotating driving member is connected to the bottom of the frame 1, and the rotating driving member is used to drive the rotating table 3 to rotate on the top of the frame 1; a plurality of injection molding stations arranged on the rotating table 3, in this embodiment, the number of injection molding stations is two, and they are arranged radially on the rotating table 3, and one of the injection molding stations is directly below the injection end of the injection molding mechanism 2; a plurality of molds 4, the molds 4 are matched and installed on the injection molding stations, in this embodiment, the rotating driving member uses a driving motor; a discharging mechanism 5, used to discharge the molded mold 4 from the discharge port of the frame 1; a conveying mechanism 6 arranged at the discharge port, used to convey the mold 4 that has been taken; a jetting mechanism 7 located at the discharge port and on the conveying line of the conveying mechanism 6, used to jet and cool the mold 4 and the injection molded product, in this embodiment, the rotating driving member uses a driving motor.

[0048] When performing product injection molding, the plastic material is placed in the injection molding mechanism 2. After the injection molding mechanism 2 heats the material into a molten state, it injects the material into the molding mold 4 for injection molding. At the same time, the mold 4 with inserts installed is installed on the injection molding station far from the lower part of the injection molding mechanism 2, reducing the possibility of still installing inserts after injection molding is completed, enabling the injection molding machine to operate stably and regularly. Further, after the injection molded product is formed, it is discharged through the discharging mechanism 5. The conveying mechanism 6 moves the mold 4 to the injection molding station at the end of the rotating table 3 far from the injection molding mechanism 2. During the conveying process, the jetting mechanism 7 jets and cools the mold 4, facilitating the removal of the finished product from the mold 4 and improving the cooling efficiency. Subsequently, the inserts are installed on the mold 4 for pre-installation treatment of the inserts. It is not necessary to wait for the mold 4 below the injection molding mechanism 2 to rotate to the end far from the injection molding mechanism 2 to install the inserts, reducing the possibility of the injection molding machine pausing operation due to complex and time-consuming insert installation, thereby improving the injection molding efficiency.

[0049] The injection molding mechanism 2 includes a feeding component 21, an injection molding component 22, a lifting table 23 and a lifting driving member 24. The feeding component 21 is located on the top of the frame 1, the feeding component 21 is communicated with the injection molding component 22, the injection molding component 22 is connected to the lifting table 23, the injection end of the injection molding component 22 penetrates through the bottom of the lifting table 23, the lifting driving member 24 is fixed to the frame 1, the output end of the lifting driving member 24 is connected to the lifting table 23, and the lifting driving member 24 is used to drive the lifting table 23 to lift. The injection molding station is located at the bottom of the injection molding component 22. In this embodiment, the lifting driving member 24 uses a hydraulic cylinder, and the lifting table 23 is driven to lift by the hydraulic cylinder.

[0050] When injection molding is carried out, the lifting driving member 24 is started, and the lifting driving member 24 drives the lifting table 23 to descend. The lifting table 23 drives the injection molding assembly 22 to descend, so as to move the injection molding assembly 22 to the mold 4 for injection molding. After the injection molding is completed, the injection molding assembly 22 rises under the action of the lifting driving member 24, so that the finished product after injection molding is removed from the bottom of the injection molding assembly 22. At the same time, a new mold 4 moves to the bottom of the injection molding assembly 22 for injection molding, improving the convenience of injection molding.

[0051] Refer to Figure 3 , the mold 4 includes a mounting base 41, a bottom mold 42 and a pressing mold 43. The number of the mounting bases 41 is two, and they are respectively fixedly installed on two injection molding stations. The bottom mold 42 is detachably installed on the mounting base 41. The pressing mold 43 is fixedly connected to the bottom wall of the lifting table 23. The output end of the injection molding assembly 22 penetrates through the bottom wall of the pressing mold 43, and the injection molding assembly 22 is fixed to the pressing mold 43. When injection molding is carried out, when the bottom mold 42 is in contact with the pressing mold 43, a closed injection molding cavity is formed between the bottom mold 42 and the pressing mold 43, and the injection molding assembly 22 injects into the injection molding cavity, thereby realizing injection molding.

[0052] A C-shaped plate 44 is installed on one side of the two mounting bases 41 close to each other for positioning the position of the bottom mold 42. When the bottom mold 42 is installed, the bottom mold 42 with inserts is placed on the mounting base 41, and the bottom mold 42 is pushed to make the bottom mold 42 embed into the C-shaped plate 44 from the opening of the C-shaped plate 44, thereby positioning the position of the bottom mold 42, improving the accuracy of the position of the bottom mold 42 installed on the mounting base 41, and improving the installation speed.

[0053] Refer to 3 and Figure 4, to improve the discharging speed of the injection molded product, the mold 4 further includes an injection molded part 45 and a ejector part 46. The bottom wall of the press mold 43 is provided with an upper mold cavity 431, and the top wall of the injection molded part 45 is provided with a lower mold cavity 451. The insert is installed in the lower mold cavity 451. The top wall of the bottom mold 42 is provided with an injection cavity 432. The injection molded part 45 is embedded in the injection cavity 432. When the injection molded part 45 is in contact with the press mold 43, the upper mold cavity 431 and the lower mold cavity 451 are connected to form a closed injection cavity. The ejector part 46 is located at the bottom of the injection molded part 45. The ejector part 46 is inserted and slides in the injection molded part 45. The ejector part 46 is slidably connected to the bottom mold 42. The ejector part 46 is used to eject the injection molded product from the injection molded part 45. The ejector part 46 is fixedly connected with an ejector spring 461. One end of the ejector spring 461 away from the ejector part 46 is connected to the injection molded part 45. To reduce the possibility of the ejector part 46 sliding down during the injection of the injection molding assembly 22, a limiting part 462 is provided at the bottom of the ejector part 46. The limiting part 462 is connected to the wall of the injection cavity 432. The discharging mechanism 5 includes a clamping assembly 51, a moving guide rail 52 and a moving driving assembly 53. The clamping assembly 51 is used to clamp the bottom mold 42 and make the ejector part 46 eject the injection molded product. The moving guide rail 52 is connected to the frame 1. The clamping assembly 51 is slidably connected to the moving guide rail 52. The moving driving assembly 53 is connected to the frame 1. The output end of the moving driving assembly 53 is connected to the clamping assembly 51. The moving driving assembly 53 is used to drive the clamping assembly 51 to move along the length direction of the moving guide rail 52. In this embodiment, the moving driving assembly 53 uses a driving motor and a lead screw to make the clamping assembly 51 move in a fixed direction. Making an object move by a driving motor and a lead screw is a prior art and will not be elaborated here.

[0054] When it is necessary to take the injection molded product, start the clamping assembly 51. The clamping assembly 51 clamps the bottom mold 42, separating the bottom mold 42 from the mounting seat 41. At the same time, the clamping assembly 51 pushes the ejector part 46. The ejector part 46 slides relative to the bottom mold 42. The ejector part 46 ejects the injection molded product from the injection molded part 45, creating a gap between the injection molded product and the injection molded part 45. Start the moving driving assembly 53. The moving driving assembly 53 drives the clamping assembly 51 to move along the moving guide rail 52, thus moving the bottom mold 42 to the discharging port. The air jet mechanism 7 cools the injection molded product. At the same time, the ejected injection molded product increases the contact area with the air, further improving the cooling efficiency. Also, it is convenient to take out the injection molded product, thereby improving the injection efficiency.

[0055] Specifically, in this embodiment, to facilitate the clamping assembly 51 to clamp the bottom mold 42 away from the mounting base 41 and prevent it from colliding with the lifting drive member 24 during movement, the clamping assembly 51 is pneumatically driven. One pneumatic drive system is used to move the clamping assembly 51 closer to or farther from the bottom mold 42, and another pneumatic drive system is used to clamp or release the bottom mold 42 by the clamping assembly 51.

[0056] The clamping assembly 51 is provided with two clamping clips and two clamping ends that are symmetrically arranged. Clamping grooves for the clamping assembly 51 to clamp are formed through both sides of the bottom mold 42. The clamping grooves are horizontally arranged. When the clamping assembly 51 clamps the bottom mold 42, the clamping clips clamp the bottom mold 42, the clamping clips abut against the bottom mold 42, the clamping ends abut against the wall of the clamping groove. The clamping groove is communicated with the injection molding groove 432. The bottom of the ejector member 46 is located in the clamping direction of the clamping groove. The mounting base 41 is connected with a fixing drive member 47. The mounting base 41 is provided with a fixing groove 471 which is communicated with the injection molding groove 432. The mounting base 41 is slidably connected with a fixing member 472. The fixing member 472 is inserted through the fixing groove 471. The output end of the fixing drive member 47 is connected with the fixing member 472. Fixing wings 473 are symmetrically arranged on both sides of the fixing member 472. The side of the fixing wing 473 away from the fixing member 472 abuts tightly against the wall of the injection molding groove 432. A pushing block 474 is slidably connected in the injection molding groove 432. When the clamping assembly 51 clamps the bottom mold 42, the clamping assembly 51 pushes the ejector member 46 to eject the finished product out of the lower mold cavity 451 by the ejector member 46. Subsequently, the clamping assembly 51 continues the clamping operation. The clamping end of the clamping assembly 51 pushes the pushing block 474 to move, making the pushing block 474 move towards the direction of the fixing wing 473, thereby folding the fixing wing 473 to facilitate the removal of the fixing member 472 from the bottom mold 42, thus realizing the separation of the bottom mold 42 from the mounting base 41. In this example, the fixing drive member 47 uses a cylinder.

[0057] After the clamping assembly 51 clamps the bottom mold 42 away from the mounting base 41, the moving drive assembly 53 drives the clamping assembly 51 to move along the length direction of the moving guide rail 52 until the bottom mold 42 is moved to the conveying mechanism 6. In this embodiment, the conveying mode of the conveying mechanism 6 for the bottom mold 42 uses belt drive, which is a prior art and will not be elaborated here.

[0058] The air jet mechanism 7 includes a cold air component, a hot air component, and a waste heat recovery component. The output end of the cold air component faces the discharge port. The cold air component is used to cool the injection molded product. The hot air components are arranged along the conveying direction of the conveying mechanism 6. The output end of the hot air component faces the conveying mechanism 6. The waste heat recovery component is used to recover the waste heat generated by the injection molding component 22 and convey the waste heat to the hot air component.

[0059] The cold air assembly includes a folding member 71, a one-way air inlet member 711, and a one-way air outlet member 712. The folding member 71 is hollow. One end of the folding member 71 is fixedly connected to the bottom wall of the lifting platform 23, and the end of the folding member 71 away from the lifting platform 23 is connected to the frame 1. The one-way air inlet member 711 is fixedly connected to the folding member 71 and is used to inflate the folding member 71. The one-way air outlet member 712 is fixedly connected to the folding member 71 and is used to jet air into the folding member 71. The output end of the one-way air outlet member 712 faces the discharge port.

[0060] When the injection molding assembly 22 is lifted, when the lifting platform 23 rises, gas enters the folding member 71 from the one-way air inlet member 711. When the lifting platform 23 descends, the folding member 71 folds, and the gas in the folding member 71 is ejected from the one-way air outlet member 712. At this time, under the action of the clamping assembly 51, the finished product is ejected from the lower die cavity 451, so that the area of the finished product exposed to the air increases. The gas in the folding member 71 is jetted onto the finished product, thereby realizing the cooling of the injection molded product, improving the cooling efficiency, and reducing energy consumption.

[0061] The hot air assembly includes an inflating member 72, an airbag 721, and a nozzle 722. The inflating member 72 is used to inflate the airbag 721. The airbag 721 is connected to the nozzle 722. The nozzle 722 faces the conveying mechanism 6 and is used to jet the gas in the airbag 721 onto the bottom die 42 on the conveying mechanism 6. The waste heat recovery assembly is used to recover the waste heat generated by the injection molding assembly 22 and convey the waste heat to the airbag 721.

[0062] A first communication hole 73 is formed in the groove wall of the injection molding groove 432, and a second communication hole 731 is formed in the pressing die 43. When the pressing die 43 is attached to the bottom die 42, the first communication hole 73 is connected to the second communication hole 731. The waste heat recovery assembly includes an air suction member 732 and an air suction pipe 733. The input end of the air suction pipe 733 is connected to the second communication hole 731, and the output end of the air suction pipe 733 is connected to the airbag 721. The air suction member 732 is used to absorb the heat generated during injection molding and transmit it to the airbag 721 through the air suction pipe 733. In this embodiment, the air suction member is an air suction fan.

[0063] The implementation principle of an electric turntable injection molding machine according to an embodiment of the present application is as follows: When injection molding is performed, the bottom mold 42 with inserts installed is installed on the top of the mounting base 41. The rotating table 3 rotates, causing the bottom mold 42 to rotate to the bottom of the injection molding assembly 22 for injection molding operations. After injection molding is completed, the clamping assembly 51 is activated. The clamping assembly 51 clamps the bottom mold 42 and ejects the finished product from the lower mold cavity 451. Under the action of the moving drive assembly 53, it moves to the position of the one-way air outlet part 712 for cooling and material taking processes. The bottom mold 42 that has been emptied after material taking is placed on the conveying mechanism 6. During the movement, the nozzle 722 jets air towards the bottom mold 42 for preheating. Subsequently, the inserts are installed, enabling the installation of inserts and the bottom mold 42 during the operation of the injection molding assembly 22, reducing manual intervention when the rotating table 3 rotates. Moreover, the finished product is clamped away from the rotating table 3, allowing the finished product to be cooled and taken outside the injection molding machine, reducing the possibility of the injection molding machine pausing operation, and thus improving the injection molding efficiency.

[0064] Embodiment 2

[0065] Refer to Figure 5 In this embodiment, the mounting base 41 is penetrated by a penetrating member 48. A penetrating driving member 481 is arranged inside the penetrating member 48. The penetrating driving member 481 is fixedly connected to the mounting base 41. A sliding member 483 is arranged inside the penetrating member 48. The output end of the penetrating driving member 481 is fixedly connected to the sliding member 483. An inclined slot 482 is formed on one side of the penetrating member 48. The inclined slot 482 penetrates through the top wall of the penetrating member 48. A sliding rod 484 is slidably arranged in the inclined slot 482. One end of the sliding member 483 away from the penetrating member 48 is penetrated by a hinge member 485. The hinge member 485 is located at the top of the sliding member 483. The sliding member 483 is hinged to a stabilizing wing 486 through the hinge member 485. The stabilizing wing 486 is generally in an F shape. The sliding rod 484 is used to push the head of the stabilizing wing 486 to abut against the bottom mold 42, so that the mounting base 41 and the bottom mold 42 are assembled. The tail of the stabilizing wing 486 is hinged to the sliding member 483 through the hinge member 485. A sliding slot is formed through the tail of the stabilizing wing 486. One end of the sliding rod 484 is located in the sliding slot. A connecting member 487 is penetrated on one side of the sliding rod 484. The sliding rod 484 is slidably connected to the tail of the stabilizing wing 486 through the connecting member 487. In this embodiment, the penetrating driving member 481 is a cylinder.

[0066] The implementation principle of an electric turntable injection molding machine according to an embodiment of the present application is as follows: When installing the bottom mold 42 and the mounting base 41, the penetrating driving member 481 drives the pushing member to push the sliding member 483 to move along the penetrating member 48. The sliding rod 484 slides in the inclined slot 482, so that the sliding rod 484 slides in the transverse slot, causing the stabilizing wing 486 to abut against the bottom mold 42, and the bottom mold 42 and the mounting base 41 are assembled, improving the installation speed of the bottom mold 42 and the mounting base 41.

[0067] On the other hand, the embodiments of the present application also disclose an injection molding process for an electric turntable injection molding machine.

[0068] S1: Install the insert on the bottom mold 42;

[0069] S2: Start the rotation driving member, and the rotation driving member drives the turntable 3 to rotate, and rotates the bottom mold 42 with the insert installed to the bottom of the injection molding assembly 22;

[0070] S3: Start the lifting driving member 24, and the lifting driving member 24 drives the injection molding assembly 22 to descend, so that the injection molding assembly 22 descends, and the injection molding assembly 22 injects into the injection mold cavity to realize injection molding;

[0071] S4: The injection molding assembly 22 rises, and the clamping assembly 51 clamps the bottom mold 42 after injection molding away from the injection station, and the bottom mold 42 discharges from the discharge port and is pushed to the conveying mechanism 6;

[0072] S5: The gas ejected by the air jet mechanism 7 is ejected onto the bottom mold 42 located on the conveying mechanism 6, so as to cool the injection molded product and blow the debris away from the injection molded product, and take out the injection molded product. At the same time, steps S1 to S4 are repeated.

[0073] Specifically, step S4 is as follows: The clamping assembly 51 clamps the bottom mold 42 away from the mounting seat 41. At the same time, the clamping end of the clamping assembly 51 passes through the pushing ejector 46, so that the ejector 46 ejects the finished product from the lower mold cavity 451. Under the action of the moving driving assembly 53, the bottom mold 42 is moved to the cold air assembly to cool the finished product, and then moved to the conveying mechanism 6.

[0074] The implementation principle of the injection molding process of the electric turntable injection molding machine in the embodiments of the present application is as follows: When injection molding is carried out, the bottom mold 42 with the insert installed is installed on the turntable 3, and the rotation driving member drives the turntable 3 to rotate, and moves the bottom mold 42 to the bottom of the injection molding assembly 22 for injection molding. After injection molding, the clamping assembly 51 clamps the bottom mold 42 away from the mounting seat 41, so that the finished product is taken and cooled outside the turntable 3. At the same time, when injection molding is carried out, the bottom mold 42 pre-installed with the insert can be quickly installed on the mounting seat 41, reducing the possibility of the turntable 3 pausing due to the complex installation of the insert. During the process of injection molding, cooling, taking, and placing the insert of the finished product, the insert can be pre-installed, and the cooling assembly cools the injection molded product, thereby shortening the waiting time, enabling the injection molding operation of the injection molding machine to be carried out stably and continuously, reducing manual intervention in the operation process of the injection molding machine, and thus improving the injection molding efficiency.

[0075] The above are all preferred embodiments of the present application. This embodiment is only an explanation of the present application and does not limit the protection scope of the present application in turn. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An electric turntable injection molding machine, comprising a frame (1), an injection molding mechanism (2), a rotating table (3), a rotating drive member, an injection molding station, and a plurality of molds (4), characterized in that: A discharge port is provided on one side of the frame (1), and the discharge port is located at the bottom of the injection molding mechanism (2), and further comprises: A discharge mechanism (5) for discharging the mold (4) after injection molding from a discharge port of the frame (1); A conveying mechanism (6) is arranged at the material outlet and is used to convey the mold (4) from which the material has been taken; An air jet mechanism (7), located at the discharge port and on the conveying line of the conveying mechanism (6), and used for air jet cooling the mold (4) and the injection molded product; The mold (4) comprises a mounting seat (41), a bottom mold (42), a pressure mold (43), an injection molded part (45) and a top material (46); the mounting seat (41) is mounted on an injection molding station; the bottom mold (42) is detachably mounted on the mounting seat (41); the pressure mold (43) is connected to the bottom of the injection molding mechanism (2); when the injection molded part (45) and the pressure mold (43) are in contact with each other, a closed injection molding cavity is formed between the injection molded part (45) and the pressure mold (43); an injection molding groove (432) is formed on the top wall of the bottom mold (42); the injection molded part (45) is embedded in the injection molding groove (432); the top material (46) is located at the bottom of the injection molded part (45); the top material (46) is slidably connected to the bottom mold (42) and the bottom mold (42). The ejecting member (46) is used to eject the finished injection molded product from the injection molded part (45); the discharging mechanism (5) comprises a clamping assembly (51), a movable guide rail (52) and a movable drive assembly (53); the clamping assembly (51) is used to clamp the bottom mold (42) and enable the ejecting member (46) to eject the finished injection molded product; the movable guide rail (52) is connected to the frame (1); the clamping assembly (51) is slidably connected to the movable guide rail (52); the movable drive assembly (53) is connected to the frame (1); the output end of the movable drive assembly (53) is connected to the clamping assembly (51); and the movable drive assembly (53) is used to drive the clamping assembly (51) to move; The bottom mold (42) has two sides through which clamping grooves for clamping by the clamping assembly (51) are formed. The clamping grooves are connected to the injection molding groove (432). The bottom of the ejecting member (46) is located in the clamping direction of the clamping grooves. The ejecting member (46) is connected to an ejecting spring (461). One end of the ejecting spring (461) away from the ejecting member (46) is connected to the injection molding member (45). The mounting seat (41) is connected to a fixed driving member (47). The mounting seat (41) has a fixed A groove (471), the fixed groove (471) is connected to the injection groove (432), the mounting seat (41) is slidably connected with a fixing member (472), the fixing member (472) is inserted into the fixed groove (471), the output end of the fixed driving member (47) is connected to the fixing member (472), and the fixing members (473) are symmetrically arranged on both sides of the fixing member (472), and the side of the fixing member (473) away from the fixing member (472) is tightly pressed against the groove wall of the injection groove (432); When the clamping assembly (51) clamps the bottom mold (42), the clamping assembly (51) pushes the ejecting piece (46) so that the ejecting piece (46) ejects the finished product out of the bottom mold groove (451). Subsequently, the clamping assembly (51) continues to perform the clamping operation, and the clamping end of the clamping assembly (51) pushes the pushing block (474) to move, so that the pushing block (474) moves toward the fixed wing (473), thereby folding the fixed wing (473), making it easier to remove the fixing piece (472) from the bottom mold (42), thereby realizing the separation of the bottom mold (42) and the mounting seat (41).

2. The electric turntable injection molding machine according to claim 1, characterized in that: The jet mechanism (7) comprises a cold air component, a hot air component and a waste heat recovery component, the output end of the cold air component faces the discharge port, the cold air component is used to cool the injection molded product, the hot air component is arranged along the conveying direction of the conveying mechanism (6), the output end of the hot air component faces the conveying mechanism (6), and the waste heat recovery component is used to recover the waste heat generated by the injection molding mechanism (2) and convey the waste heat to the hot air component.

3. The electric turntable injection molding machine according to claim 2, characterized in that: The cold air component comprises a folding member (71), a one-way air inlet member (711) and a one-way air outlet member (712); the folding member (71) is hollow; one end of the folding member (71) is connected to the injection molding mechanism (2); the end of the folding member (71) away from the injection molding mechanism (2) is connected to the frame (1); the one-way air inlet member (711) is connected to the folding member (71); the one-way air inlet member (711) is used to inflate the folding member (71); the one-way air outlet member (712) is connected to the folding member (71); the one-way air outlet member (712) is used to spray air to the folding member (71); the output end of the one-way air outlet member (712) faces the discharge port.

4. The electric turntable injection molding machine according to claim 2, characterized in that: The hot air component comprises an inflatable piece (72), an airbag (721) and a nozzle (722); the inflatable piece (72) is used to inflate the airbag (721); the airbag (721) is connected to the nozzle (722); the nozzle (722) faces the conveying mechanism (6) and is used to spray the gas in the airbag (721) to the mold (4) on the conveying mechanism (6); and the waste heat recovery component is used to recover the waste heat generated by the injection molding mechanism (2) and transport the waste heat to the airbag (721).

5. The electric turntable injection molding machine according to claim 4, characterized in that: The waste heat recovery component comprises an air suction piece (732) and an air suction pipe (733), wherein an input end of the air suction pipe (733) is located in the mold (4), and an output end of the air suction pipe (733) is connected to the air bag (721); the air suction piece (732) is used to absorb heat generated during injection molding and transmit the heat to the air bag (721) through the air suction pipe (733).

6. The electric turntable injection molding machine according to claim 1, characterized in that: The injection molding mechanism (2) comprises a feed assembly (21), an injection molding assembly (22), a lifting platform (23) and a lifting drive member (24); the feed assembly (21) is located at the top of the frame (1); the feed assembly (21) is connected to the injection molding assembly (22); the injection molding assembly (22) is connected to the lifting platform (23); the lifting drive member (24) is connected to the frame (1); the lifting drive member (24) is used to drive the lifting platform (23) to move up and down; and the injection molding station is located at the bottom of the injection molding assembly (22).

7. The electric turntable injection molding machine according to claim 1, characterized in that: The mounting seat (41) is inserted with a plug-in component (48), and an insertion drive component (481) is arranged inside the plug-in component (48), and the insertion drive component (481) is connected to the mounting seat (41). A sliding component (483) is arranged inside the plug-in component (48), and the output end of the insertion drive component (481) is connected to the sliding component (483). An inclined groove (482) is provided on one side of the plug-in component (48), and a sliding rod (484) is slidingly arranged in the inclined groove (482), and the sliding component (483) is hinged with a stabilizing wing (486), and the sliding rod (484) is used to push the stabilizing wing (486) against the bottom mold (42), so that the mounting seat (41) and the bottom mold (42) are assembled.

8. The electric turntable injection molding machine according to claim 1, characterized in that: The injection molding process performed by the electric turntable injection molding machine comprises the following steps: S1: Install the insert on the mold (4); S2: starting the rotary drive member, which drives the rotary table (3) to rotate, and rotates the mold (4) with the insert installed to the bottom of the injection molding mechanism (2); S3: starting the injection molding mechanism (2), the injection molding mechanism (2) descends, and the injection molding mechanism (2) performs injection molding into the mold (4), thereby achieving injection molding; S4: the injection molding mechanism (2) rises, the discharge mechanism (5) pushes the mold (4) after injection molding away from the injection molding station, and the mold (4) is discharged from the discharge port and pushed to the conveying mechanism (6); S5: The gas ejected by the jet mechanism (7) is ejected toward the mold (4) located on the conveying mechanism (6), thereby cooling the injection molded product and blowing the debris away from the injection molded product, and the injection molded product is taken out. At the same time, steps S1 to S4 are repeated.

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