Disc vertical type glue injection molding machine

Abstract

The invention relates to the field of injection molding machines, in particular to a disc vertical type glue injection molding machine which comprises a machine box, a supporting base, a lifting plate, a lifting driving mechanism, a mold mechanism, a rotating disc, a rotating driving mechanism, an ejection mechanism, a glue melting mechanism, a glue injection mechanism, a feeding mechanism and an ejection mechanism. The supporting seat is fixed to the machine box, and the lifting driving mechanism is arranged on the supporting seat and used for driving the lifting plate to ascend and descend. The mold mechanism comprises a movable mold and a fixed mold; the movable mold is fixed on the lower surface of the lifting plate; the rotating driving mechanism is used for driving the rotating disc to rotate, and the two fixed molds are both fixed to the upper surface of the rotating disc; the glue melting mechanism is used for melting plastic particles, and the glue injection mechanism is used for injecting molten plastic into the mold mechanism; the feeding mechanism is used for conveying plastic particles into the glue melting mechanism, and the ejection mechanism is used for ejecting a formed plastic product. The production efficiency and the product quality are improved.

Description

Technical Field

[0001] This application relates to the field of injection molding machines, and in particular to a disc-type vertical injection molding machine. Background Technology

[0002] Currently, in the injection molding field, with the increasing demand for product diversification, high precision, and efficient production in industrial manufacturing, the performance and structure of injection molding machines are constantly facing new challenges and improvement requirements. As the core equipment for plastic processing and molding, the performance of injection molding machines directly affects product quality, production efficiency, and cost. Different types of injection molding machines have different characteristics and development directions in terms of structure, power drive, and mold opening and closing control, depending on their specific application scenarios and molding process requirements. Among them, vertical rotary injection molding machines, due to their unique structural advantages, demonstrate significant application value in multi-station molding and the production of complex structure products, and can meet the production needs of some specific industries for efficient and precise injection molding.

[0003] A related technology discloses an inorganic column-type vertical rotary injection molding machine, including a frame, a rotary assembly on the frame, a plurality of lower mold cylinder assemblies arranged in a circular array on the rotary assembly, a vertically movable support frame at the upper end of the rotary assembly, and a plurality of upper mold cylinder assemblies at the bottom end of the support frame, wherein the number of lower mold cylinder assemblies is M times the number of upper mold cylinder assemblies, M>2. An injection assembly, matching the position and number of the upper mold cylinder assemblies, is also provided at the upper end of the support frame. Each injection assembly can extrude injection molding material into the upper mold cylinder assembly it docks with. The frame also includes a drive assembly, a hydraulic transmission system, and a control system. The drive assembly drives the rotary assembly to rotate circumferentially and drives the lower mold cylinder assemblies to rotate in match, so that the lower mold cylinder assemblies dock sequentially or in groups with the upper mold cylinder assemblies. The hydraulic transmission system provides power for hydraulic clamping of each lower mold cylinder assembly with the corresponding upper mold cylinder assembly. The control system controls the operation of the vertical injection molding machine.

[0004] The inorganic column-type rotary injection molding machine in the related technology has the following drawbacks: In this technology, the lower mold cylinder assembly is rotated by the turntable assembly, causing it to sequentially or in groups dock with the upper mold cylinder assembly for injection molding. Although this method achieves multi-station molding, the number of lower mold cylinder assemblies is M times the number of upper mold cylinder assemblies (M>2), which requires precise control of the turntable position and the synchronous movement of multiple molds during mold docking, increasing the complexity and difficulty of control. Summary of the Invention

[0005] To address the aforementioned problems, this application provides a disc-type vertical injection molding machine.

[0006] The disc-type vertical injection molding machine provided in this application adopts the following technical solution: A vertical rotary injection molding machine includes a chassis, a support base, a lifting plate, a lifting drive mechanism, a mold mechanism, a rotary disk, a rotary drive mechanism, an ejection mechanism, a melting mechanism, an injection mechanism, a feeding mechanism, and an ejection mechanism. The support base is fixed to the chassis, and the lifting drive mechanism is mounted on the support base and is used to drive the lifting plate to move up and down. The mold mechanism includes a moving mold and a fixed mold, with the moving mold fixed to the lower surface of the lifting plate. The rotary drive mechanism is located inside the chassis and is used to drive the rotary disk to rotate. There are two fixed molds, both of which are fixed to the upper surface of the rotary disk. A first mounting base is fixedly mounted on the upper surface of the lifting plate, and the melting mechanism and the injection mechanism are mounted on the first mounting base. The melting mechanism is used to melt plastic granules, and the injection mechanism is used to inject molten plastic into the mold mechanism. The feeding mechanism is used to convey plastic granules into the melting mechanism, and the ejection mechanism is located below the support plate and is used to eject the molded plastic product.

[0007] By adopting the above technical solution, a lifting drive mechanism is set on the fixed support base on the chassis to drive the lifting plate to rise and fall. The moving mold is fixed on the lower surface of the lifting plate, and the rotation drive mechanism inside the chassis drives the rotating disk to rotate. Two fixed molds are fixed on the upper surface of the rotating disk. The lifting drive mechanism on the lifting plate can drive the moving mold to dock with the fixed molds at different positions on the rotating disk, realizing multi-station switching. At the same time, a melting mechanism and a glue injection mechanism are set on the lifting plate. The feeding mechanism conveys plastic granules to the melting mechanism for melting, and then the glue injection mechanism injects them into the mold mechanism. The ejection mechanism is set below the support plate to eject the molded plastic products. This reduces the dependence on precise position control and synchronous action of multiple molds when the molds dock, reduces the complexity and difficulty of control, and the two fixed molds can dock with the moving mold alternately, which can make full use of the workstations for simultaneous production and improve production efficiency.

[0008] Optionally, the melting mechanism includes a lifting seat, a barrel, a screw, and a first drive assembly; the first mounting seat includes a base, a connector, and a second support rod, the base is fixedly connected to the lifting plate, the bottom end of the second support rod is fixedly connected to the base, and the top end of the second support rod is fixedly connected to the connector; the second support rod passes through the lifting seat, the lifting seat and the second support rod slide in cooperation, the barrel is disposed on the lifting seat, the top and bottom ends of the barrel are both open, the screw extends vertically and is rotatably disposed inside the barrel, and the first drive assembly is disposed on the lifting seat for driving the screw to rotate.

[0009] By adopting the above technical solution, the first mounting base is firmly fixed to the lifting plate via a base, and a stable support structure is constructed with the help of connecting parts and a second support rod. The second support rod passes through the lifting base and the two slide in cooperation, allowing the lifting base to move flexibly up and down on the second support rod. The material cylinder is set on the lifting base, with openings at its top and bottom to facilitate the entry of plastic granules and the outflow of molten plastic. The screw is vertically rotated inside the material cylinder. When the first drive assembly drives the screw to rotate, it can convey, shear, and heat and melt the plastic granules entering the material cylinder. By adjusting the lifting base on the second support rod, the position of the material cylinder and the screw can be flexibly controlled to adapt to different working requirements.

[0010] Optionally, the first drive assembly includes a second mounting base, a second motor, a first belt, a first drive pulley, and a first driven pulley; the second mounting base is slidably engaged with the lifting base, the second motor is fixed on the second mounting base, the first drive pulley is sleeved on the output shaft of the second motor, the first driven pulley is sleeved on the top end of the screw, and the first belt is arranged around the first drive pulley and the first driven pulley.

[0011] By adopting the above technical solution, when the second motor starts, its output shaft drives the first driving pulley, which is sleeved on it, to rotate. Since the first belt is wound between the first driving pulley and the first driven pulley sleeved on the top of the screw, according to the principle of belt drive, the rotation of the first driving pulley will drive the first driven pulley to rotate synchronously via the first belt, thereby driving the screw to rotate. This belt drive method is not only simple in structure and easy to install, but also plays a certain role in buffering and shock absorption, reducing the impact of vibrations generated during motor operation on the screw. Furthermore, the position of the second mounting base can be easily adjusted according to actual needs to optimize the transmission effect, ensuring stable and efficient screw rotation, thereby improving the working performance of the melting glue mechanism.

[0012] Optionally, the glue injection assembly includes a fixed base, a lead screw, a third motor, a second belt, a second driving pulley, and a second driven pulley; the fixed base is fixedly connected to the support rod, the top end of the lead screw passes through the fixed base and is rotatably connected to the fixed base through a bearing, the bottom end of the lead screw is threadedly engaged with a second mounting base, the third motor is fixed on the fixed base, the second driving pulley is sleeved on the output shaft of the third motor, the second driven pulley is sleeved on the top end of the lead screw and is fixedly connected to the lead screw, and the second belt is arranged around the second driving pulley and the second driven pulley.

[0013] By adopting the above technical solution, when the third motor starts, its output shaft drives the second driving pulley, which is sleeved on it, to rotate. Since the second belt wraps around the second driving pulley and the second driven pulley, which is sleeved on the top of the lead screw and fixedly connected to it, according to the belt drive principle, the rotation of the second driving pulley will drive the second driven pulley to rotate synchronously via the second belt, thereby causing the lead screw to rotate. Furthermore, because the bottom end of the lead screw is threaded into the second mounting seat, according to the characteristics of lead screw drive, the rotation of the lead screw will be converted into linear motion of the second mounting seat in the vertical direction, thereby driving the melting mechanism associated with the second mounting seat to rise and fall, achieving precise adjustment of the injection height. This ingenious combination of belt drive and lead screw drive ensures both the stability of power transmission and precise control of component positions, contributing to improved injection accuracy and molding quality.

[0014] Optionally, the feeding mechanism is fixed on the lifting seat, the feeding mechanism has a feeding channel, the side wall of the lifting seat has a first feeding hole, and the side wall of the material cylinder has a second feeding hole; the bottom end of the feeding channel is connected to the first feeding hole, the first feeding hole and the second feeding hole are connected to each other, and the second feeding hole is connected to the inside of the material cylinder.

[0015] By adopting the above technical solution, the feeding channel within the feeding mechanism is sequentially connected to the first feeding hole on the side wall of the lifting seat and the second feeding hole on the side wall of the barrel, ultimately allowing the material to smoothly enter the barrel. When feeding is required, materials such as plastic granules enter through the feeding channel and are guided accurately into the barrel by the first and second feeding holes, making the feeding process smoother and more stable, avoiding problems such as blockage or leakage during feeding. Simultaneously, because the feeding mechanism is connected to the lifting seat, the connection between the feeding channel and the feeding hole remains unaffected when the lifting seat adjusts the barrel's height, ensuring stable feeding under different operating conditions and contributing to improved overall injection molding machine efficiency and production stability.

[0016] Optionally, the rotary drive mechanism includes a first motor, a drive gear, and a driven gear; the first motor is fixed to the lower surface of the support plate of the chassis, the output shaft of the first motor passes through the support plate and is rotatably connected to the support plate, the drive gear is sleeved on the output shaft of the first motor and is fixedly connected to the output shaft, the driven gear is located on the upper surface of the support plate and is rotatably connected to the support plate, the drive gear and the driven gear mesh with each other, and the rotating disk is fixed to the upper surface of the driven gear.

[0017] By adopting the above technical solution, when the first motor starts, the output shaft drives the driving gear, which is sleeved and fixedly connected to it, to rotate. Since the driving gear meshes with the driven gear located on the upper surface of the support plate and rotatably connected, according to the principle of gear transmission, the rotation of the driving gear will drive the driven gear to rotate synchronously. The rotating disk is fixed to the upper surface of the driven gear, thus allowing the rotating disk to rotate along with the driven gear. Utilizing the smooth and precise characteristics of gear transmission, it ensures that the rotating disk rotates stably at a predetermined speed and direction, achieving precise positioning and switching of the mold mechanism. This helps improve the production accuracy and efficiency of the injection molding machine and ensures the stability of the injection molded product quality.

[0018] Optionally, the ejection mechanism includes a fixed base, an ejection plate, ejection rods, and an ejection drive assembly. The fixed base is fixed to the lower surface of the support plate, and the ejection drive assembly is disposed on the fixed base. The ejection drive assembly is a hydraulic cylinder or a pneumatic cylinder, and its piston rod is fixedly connected to the ejection plate. There are multiple ejection rods, and the bottom end of each ejection rod is fixedly connected to the ejection plate. Multiple ejection holes are opened on opposite sides of the driven gear and the rotating disk, and the position and number of ejection holes on each side correspond one-to-one with the ejection rods.

[0019] By adopting the above technical solution, the fixed seat is stably installed on the lower surface of the support plate, providing a reliable support foundation for the entire ejection mechanism. The ejection drive assembly uses a hydraulic cylinder or pneumatic cylinder and is mounted on the fixed seat. When its piston rod extends or retracts, it can drive the ejection plate, which is fixedly connected to it, to move linearly. Since the bottom ends of multiple ejection rods are fixedly connected to the ejection plate, the movement of the ejection plate is synchronously transmitted to the ejection rods. The multiple ejection holes opened on opposite sides of the driven gear and the rotating disk correspond one-to-one with the ejection rods in position and number. After injection molding, the ejection drive assembly drives the ejection plate to rise, and the ejection rods pass through the ejection holes, ejecting the molded plastic product from the mold.

[0020] Optionally, the mold mechanism includes a moving mold and a fixed mold. The moving mold is fixed to the lower surface of the lifting plate, and there are two fixed molds, both of which are fixed to the upper surface of the rotating disk. The moving mold and the fixed mold cooperate with each other to form plastic products and achieve alternating production.

[0021] By adopting the above technical solution, the moving mold is fixed to the lower surface of the lifting plate and can move up and down with the lifting plate under the action of the lifting drive mechanism; the two fixed molds are fixed to the upper surface of the rotary disk and can rotate under the drive of the rotary drive mechanism. During operation, when one of the fixed molds is engaged with the moving mold, injection molding can be performed, while the other fixed mold is in a non-working state such as preparation or demolding. After the current fixed mold has completed injection molding, the rotary disk rotates, causing the two fixed molds to exchange positions. The fixed mold that was originally in a non-working state engages with the moving mold to perform a new round of injection molding, while the fixed mold that has completed injection molding can be demolded and other subsequent operations.

[0022] Optionally, a first protective cover is fixedly installed on the support base.

[0023] By adopting the above technical solution, during the operation of the injection molding machine, the internal mechanical structure operation and hydraulic system operation may generate splashed oil, debris and other substances. The first protective cover can block these substances and prevent them from falling into the external environment. At the same time, it also prevents external dust and debris from entering the internal area of ​​the support base and interfering with the normal operation of the equipment. It reduces the wear and jamming of parts caused by the intrusion of foreign objects, extends the service life of the equipment, ensures the stability and reliability of the injection molding machine, and reduces maintenance costs.

[0024] Optionally, a second protective cover is fixedly installed on the second mounting base. Both ends of the second protective cover are open, and the melting mechanism and the dispensing mechanism are both located inside the second protective cover.

[0025] By adopting the above technical solution, during equipment operation, the melting and injection processes involve high-temperature, high-speed rotating parts and potential plastic particle splashing. The second protective cover effectively blocks these potential hazards, preventing operators from accidentally coming into contact with high-temperature parts or being injured by splashing materials, greatly improving work safety. Simultaneously, it also prevents external dust and impurities from entering the melting and injection mechanisms, avoiding problems such as malfunctions and accelerated wear caused by foreign object intrusion. This ensures the stability and accuracy of the melting and injection processes, thereby improving the quality of injection-molded products, extending the service life of key equipment components, and reducing equipment maintenance frequency and costs.

[0026] In summary, this application includes at least one of the following beneficial technical effects: A lifting drive mechanism, mounted on a fixed support base on the chassis, drives the lifting plate to rise and fall, causing the moving mold to engage with two fixed molds at different positions on the rotary table, thus achieving multi-station switching. The two fixed molds can alternately engage with the moving mold, making full use of the workstations for simultaneous production. This reduces the reliance on precise position control and synchronized movement of multiple molds during mold engagement, lowers control complexity and difficulty, and improves production efficiency. The melting mechanism has a stable support structure built on the first mounting base, and the lifting seat can be flexibly raised and lowered on the second support rod. Combined with the belt drive of the first drive assembly, this ensures stable and efficient screw rotation. The injection assembly uses a combination of belt drive and screw drive to precisely control the lifting and lowering of the melting mechanism, achieving precise adjustment of the injection height. The feeding mechanism is connected to the lifting seat, and the feeding channel and feeding hole are sequentially connected to ensure stable feeding under different working conditions. The rotary drive mechanism utilizes the smooth and precise characteristics of gear transmission to ensure stable rotation of the rotary disc, achieving precise positioning and switching of the mold mechanism. The ejection mechanism, through the ejection drive assembly, drives the ejection plate and ejection rod to eject the molded plastic product from the mold. The support base is equipped with a first protective cover, which can prevent oil stains, debris, and other contaminants generated during the operation of the injection molding machine from falling into the external environment, prevent external dust and debris from entering the support base, reduce component wear and jamming, extend the service life of the equipment, and reduce maintenance costs. The second mounting base is equipped with a second protective cover, which can effectively block potential hazards during the melting and injection process, prevent operator injury, and at the same time prevent external dust and impurities from entering the melting and injection mechanism, ensuring the stability and accuracy of the melting and injection process, improving the quality of injection molded products, extending the service life of key components of the equipment, and reducing the frequency and cost of equipment maintenance. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of the vertical disc injection molding machine in the embodiments of this application.

[0028] Figure 2 This is a structural schematic diagram of the chassis, support base, lifting plate, lifting drive mechanism, glue injection mechanism and first mounting base in the embodiments of this application.

[0029] Figure 3 This is a schematic diagram of the structure of the lifting plate, lifting drive mechanism, rotary disk, rotary drive mechanism, ejection mechanism, melting mechanism, injection mechanism and feeding mechanism in the embodiments of this application.

[0030] Figure 4 This is a schematic diagram of the structure of the melting mechanism and the dispensing mechanism in the embodiments of this application.

[0031] Figure 5 This is a half-sectional view of the barrel and screw in the embodiments of this application.

[0032] Figure 6 This is a schematic diagram of the structure of the first driving component in the embodiments of this application.

[0033] Figure 7 This is a schematic diagram of the ejection mechanism in the embodiments of this application.

[0034] Explanation of reference numerals in the attached figures: 1. Chassis; 11. Housing; 12. Bearing plate; 2. Support base; 21. Connecting base; 22. First support rod; 3. Lifting plate; 4. Lifting drive mechanism; 5. Rotary disk; 6. Rotation drive mechanism; 61. First motor; 62. Drive gear; 63. Driven gear; 7. Ejection mechanism; 71. Fixed base; 72. Ejection plate; 73. Ejection rod; 74. Ejection drive assembly; 8. Melting mechanism; 81. Lifting base; 82. Barrel; 83. Screw; 84. First drive assembly; 841. Second mounting plate 842. Second motor; 843. First belt; 844. First drive pulley; 845. First driven pulley; 85. First feed hole; 86. Second feed hole; 9. Glue injection mechanism; 91. Fixed seat; 92. Lead screw; 93. Third motor; 94. Second belt; 95. Second drive pulley; 96. Second driven pulley; 10. Feeding mechanism; 13. First mounting seat; 131. Base; 132. Connector; 133. Second support rod; 14. First protective cover; 15. Second protective cover. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-7 This application will be described in further detail.

[0036] The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. Unless otherwise defined, the technical or scientific terms used in this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components.

[0037] This application discloses a disc-type vertical injection molding machine. (Refer to...) Figure 1 The vertical disc injection molding machine includes a machine housing 1, a support base 2, a lifting plate 3, a lifting drive mechanism 4, a mold mechanism, a rotary disc 5, a rotary drive mechanism 6, a mold mechanism, an ejection mechanism 7, a melting mechanism 8, an injection mechanism 9, and a feeding mechanism 10.

[0038] Reference Figure 2 The machine housing 1 includes a housing 11 and a support plate 12. The support plate 12 is fixedly connected to the machine housing 1, providing a stable support foundation for the entire injection molding machine, ensuring the stability of the machine during operation, and reducing the impact of vibration on processing accuracy. A support base 2 is fixed to the upper surface of the support plate 12. The support base 2 includes a connecting seat 21 and four first support rods 22. All four first support rods 22 extend vertically and are arranged in a rectangular array. The four first support rods 22 pass through the connecting seat 21 and are fixedly connected to the connecting seat 21. The bottom ends of the four first support rods 22 are fixedly connected to the support plate 12.

[0039] Reference Figure 2 Specifically, the lifting drive mechanism 4 is a hydraulic cylinder, with two cylinders symmetrically arranged on the connecting seat 21. The piston rods of both hydraulic cylinders are fixedly connected to the lower surface of the lifting plate 3. Through the extension and retraction of the hydraulic cylinders, the lifting height and speed of the lifting plate 3 can be precisely controlled to meet the needs of different molds and processing techniques. The dual hydraulic cylinder drive not only provides more stable lifting power and reduces swaying during lifting, but also shares the load to a certain extent, extending the service life of the hydraulic cylinders. In actual operation, the extension and retraction stroke of the hydraulic cylinders can be flexibly adjusted according to the mold thickness and injection molding process requirements to achieve precise control of the position of the lifting plate 3.

[0040] Reference Figure 3 The rotary drive mechanism 6 includes a first motor 61, a driving gear 62, and a driven gear 63. The first motor 61 is fixed to the lower surface of the support plate 12, and its output shaft passes through and is rotatably connected to the support plate 12. The driving gear 62 is sleeved on the output shaft of the first motor 61 and is fixedly connected to it. The driven gear 63 is located on the upper surface of the support plate 12 and is rotatably connected to it. The driving gear 62 and the driven gear 63 mesh with each other. The rotating disk 5 is fixed to the upper surface of the driven gear 63, and the axis of the rotating disk 5 coincides with the axis of the driven gear 63. In this embodiment, the diameter of the driving gear 62 is much smaller than that of the driven gear 63, achieving a speed reduction and torque increase effect. This allows the rotary drive mechanism 6 to drive the rotating disk 5 to rotate with appropriate torque and speed, ensuring accurate mold alignment.

[0041] Reference Figure 3 The mold mechanism includes a moving mold and two fixed molds. The moving mold is fixed to the lower surface of the lifting plate 3, and the two fixed molds are fixed to the upper surface of the rotating disk 5. During operation, the moving mold and the fixed molds cooperate to form plastic products. The two fixed molds can improve production efficiency and enable alternating production. The fitting accuracy of the moving mold and the fixed molds directly affects the quality of the plastic products. Therefore, high-precision machining and assembly processes are required to ensure a tight fit of the molds and reduce defects such as flash.

[0042] Reference Figure 3A first mounting base 13 is fixedly installed on the upper surface of the lifting plate 3, wherein the melting mechanism 8 and the injection mechanism 9 are both mounted on the first mounting base 13. Specifically, the first mounting base 13 includes a base 131, a connector 132, and four second support rods 133. The base 131 is fixed to the upper surface of the lifting plate 3, and the four second support rods 133 extend vertically and are arranged in a rectangular array. The bottom ends of the four second support rods 133 are fixedly connected to the base 131, and the top ends of the four second support rods 133 are fixedly connected to the connector 132, providing a stable mounting platform for the melting mechanism 8 and the injection mechanism 9 and ensuring their stability during operation.

[0043] Reference Figure 3 , Figure 4 and Figure 5 The melting mechanism 8 is used to melt plastic granules into molten plastic, providing raw materials for injection molding. The melting mechanism 8 includes a lifting seat 81, a barrel 82, a screw 83, and a first drive assembly 84. Four second support rods 133 pass through the lifting seat 81, and the lifting seat 81 slides in conjunction with the four second support rods 133. The top and bottom of the barrel 82 are open. The screw 83 extends vertically and is rotatably mounted inside the barrel 82. The first drive assembly 84 is mounted on the lifting seat 81 and drives the screw 83 to rotate. The rotation of the screw 83 conveys and melts the plastic granules forward, achieving the melting function. An electric heating device is also provided on the surface of the barrel 82 to rapidly melt the material during conveying, achieving melt plasticization. The rotation of the screw 83 not only conveys the plastic granules forward but also, through frictional heat generation and the assistance of the electric heating device, ensures the complete melting of the plastic granules, guaranteeing the quality and stability of the melt. The melting mechanism 8, through the combined action of the screw 83 rotation and the electric heating device, can efficiently melt plastic granules into a molten state, and the melt quality is stable, providing a reliable raw material guarantee for the subsequent injection process. At the same time, the sliding cooperation between the lifting seat 81 and the second support rod 133 allows the melting mechanism 8 to move with the lifting plate 3, ensuring accurate relative position with the mold during the injection molding process.

[0044] Reference Figure 3 , Figure 4 and Figure 5The first drive assembly 84 includes a second mounting base 841, a second motor 842, a first belt 843, a first drive pulley 844, and a first driven pulley 845. The second mounting base 841 includes a support 8411 and four third support rods 8412. All four third support rods 8412 extend vertically and pass through the support 8411, where they are fixedly connected. The four third support rods 8412 also pass through a lifting seat 81, with the lifting seat 81 slidingly engaging with the third support rods 8412. The second motor 842 is fixed to the upper surface of the support 8411. The output shaft of the second motor 842 passes through the support 8411 and is rotatably connected to the support 8411. The first driving pulley 844 is sleeved on the output shaft of the second motor 842 and is fixedly connected to the output shaft of the second motor 842. The first driven pulley 845 is sleeved on the top of the screw 83 and is fixedly connected to the screw 83. The first belt 843 is arranged around the first driving pulley 844 and the first driven pulley 845. Through the belt drive, the rotational motion of the second motor 842 is transmitted to the screw 83, realizing the stable rotation of the screw 83. The belt drive has a certain buffering and shock absorption effect, reducing the impact of motor vibration on the rotation of the screw 83.

[0045] Reference Figure 4 and Figure 5 The lifting base 81 has a first feed hole 85 on its side wall, and the material cylinder 82 has a second feed hole 86 on its side wall. The first feed hole 85 and the second feed hole 86 are interconnected, and the second feed hole 86 is interconnected with the inside of the material cylinder. The feeding mechanism 10 is fixed to the side wall of the lifting base 81. The feeding mechanism 10 has a feeding channel. The outlet end of the feeding channel is interconnected with the first feed hole 85, and the other end of the first feed hole 85 is interconnected with the inside of the material cylinder 82, ensuring that plastic granules can smoothly enter the material cylinder 82 from the feeding mechanism 10. The feeding channel ensures that the plastic granules enter the material cylinder 82 evenly and stably, avoiding blockage or material interruption, and improving melting efficiency. The feeding mechanism 10 is usually also equipped with a hopper for storing plastic granules and feeding the granules evenly into the feeding channel through vibration or other means. The feeding channel ensures smooth flow of granules and reduces the risk of blockage.

[0046] Reference Figure 4The injection mechanism 9 is used to inject molten plastic into a mold to complete the molding of plastic products. The injection mechanism 9 includes a fixed base 91, a lead screw 92, a third motor 93, a second belt 94, a second driving pulley 95, and a second driven pulley 96. Four second support rods 133 pass through the fixed base 91, and the fixed base 91 is fixedly connected to the four second support rods 133. The top end of the lead screw 92 passes through the fixed base 91 and is rotatably connected to the fixed base 91 via a bearing. The bottom end of the lead screw 92 passes through a support 8411 and is threadedly engaged with the support 8411. The rotation of the lead screw 92 converts the rotational motion into the linear motion of the support 8411, thereby achieving the precise injection action of the injection mechanism 9. The third motor 93 is fixed to the lower surface of the fixed base 91, and the output shaft of the third motor 93 rotates through the fixed base 91 and is rotatably connected to the fixed base 91. The second driving pulley 95 is sleeved on the output shaft of the third motor 93 and fixedly connected to the output shaft of the third motor 93. The second driven pulley is sleeved on the top of the lead screw 92 and fixedly connected to the lead screw 92. The second belt 94 is arranged around the second driving pulley 95 and the second driven pulley 96, transmitting the power of the third motor 93 to the lead screw 92 and driving the lead screw 92 to rotate. When the third motor 93 starts, it drives the second driving pulley 95 to rotate through the second belt 94, thereby driving the lead screw 92 to rotate. The lead screw 92 is threadedly engaged with the support 8411, converting the rotational motion into the linear downward or upward motion of the support 8411. The movement of the support 8411 drives the melting mechanism 8 to rise and fall synchronously, aligning the bottom end of the material cylinder 82 with the mold cavity. The molten plastic is injected into the mold cavity through the bottom end of the material cylinder 82 under the push of the screw 83.

[0047] Reference Figure 3 and Figure 7 The ejection mechanism 7 includes a fixed base 71, an ejection plate 72, ejection rods 73, and an ejection drive assembly 74. The fixed base 71 is fixed to the lower surface of the support plate 12, and the ejection drive assembly 74 is mounted on the fixed base 71. The ejection drive assembly 74 is a hydraulic cylinder or a pneumatic cylinder, with its piston rod fixedly connected to the ejection plate 72. Multiple ejection rods 73 are present, each with its bottom end fixedly connected to the ejection plate. Multiple ejection holes are provided on opposite sides of the driven gear 63 and the rotating disk 5, with the position and number of each hole corresponding to the ejection rods 73. After the plastic product is molded, the ejection drive assembly 74 drives the ejection plate 72 to rise, and the ejection rods 73 eject the plastic product from the fixed mold, completing the demolding operation. The ejection mechanism 7 enables the rapid and accurate ejection of plastic products from the mold, improving production efficiency and reducing the difficulty and labor intensity of manual operation. The action of the ejection mechanism 7 needs to be coordinated with the opening and closing action of the mold to ensure that the product is ejected in time after the mold is opened, so as to avoid the product staying in the mold for too long and causing deformation and other problems.

[0048] Reference Figure 1 A first protective cover 14 is fixedly installed on the support base 2. During the operation of the injection molding machine, the internal mechanical structure may generate splashed oil, debris, etc. The first protective cover 14 can block these substances and prevent them from falling into the external environment. It also prevents external dust and debris from entering the internal area of ​​the support base 2, extending the service life of the equipment, ensuring the stability and reliability of the injection molding machine, and reducing maintenance costs.

[0049] Reference Figure 1 A second protective cover 15 is fixedly installed on the second mounting base 841. Both ends of the second protective cover 15 are open, and the melting mechanism 8 and the injection mechanism 9 are both located inside the second protective cover 15. During equipment operation, the melting and injection processes involve high temperature, high-speed rotating parts, and possible plastic particle splashing. The second protective cover 15 can prevent external dust and impurities from entering the melting and injection mechanism 9, avoiding problems such as malfunction and accelerated wear caused by foreign object intrusion. This ensures the stability and accuracy of the melting and injection processes, thereby improving the quality of injection molded products, extending the service life of key equipment components, and reducing the frequency and cost of equipment maintenance.

[0050] The implementation principle of the above embodiment is as follows: During the injection molding process, plastic granules are first fed into the barrel 82 of the melting mechanism 8 through the feeding channel and the first feeding hole 85 via the feeding mechanism 10. The second motor 842 in the first drive assembly 84 drives the screw 83 to rotate via the first belt 843. At the same time, the electric heating device on the surface of the barrel 82 assists in heating, causing the plastic granules to melt into a molten state. Then, the third motor 93 of the injection mechanism 9 drives the lead screw 92 to rotate via the second belt 94. The lead screw 92 converts the rotational motion into the linear motion of the lifting seat 81, so that the molten plastic is injected into the mold mechanism between the moving mold and the fixed mold, completing the molding of the plastic product. Finally, after the plastic product is molded, the ejection drive assembly 74 of the ejection mechanism 7 drives the ejection plate 72 to rise, and the ejection rod 73 ejects the plastic product from the fixed mold, completing the demolding operation. Throughout the process, the two hydraulic cylinders of the lifting drive mechanism 4 precisely control the lifting height and speed of the lifting plate 3 to meet the requirements of different molds and processing techniques. At the same time, the various mechanisms cooperate with each other to ensure the stable and efficient progress of the injection molding process.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertical disc-type injection molding machine, characterized in that: The system includes a chassis (1), a support base (2), a lifting plate (3), a lifting drive mechanism (4), a mold mechanism, a rotary disk (5), a rotary drive mechanism (6), an ejection mechanism (7), a melting mechanism (8), an injection mechanism (9), a feeding mechanism (10), and an ejection mechanism (7); the support base (2) is fixed to the chassis (1), the lifting drive mechanism (4) is disposed on the support base (2), and the lifting drive mechanism (4) is used to drive the lifting plate (3) to rise and fall; the mold mechanism includes a moving mold and a fixed mold, the moving mold is fixed to the lower surface of the lifting plate (3); the rotary drive mechanism (6) is disposed inside the chassis (1), and the supporting base (2) is fixed to the support base (2), the rotary drive mechanism (6) is disposed inside the chassis (1), the rotary drive mechanism (7) is fixed to the support base (2), the rotary drive mechanism (6) is disposed to the support base (2 ... The rotary drive mechanism (6) is used to drive the rotary disk (5) to rotate. There are two fixed molds, both of which are fixed on the upper surface of the rotary disk (5). The upper surface of the lifting plate (3) is fixedly provided with a first mounting base (13). The melting mechanism (8) and the injection mechanism (9) are provided on the first mounting base (13). The melting mechanism (8) is used to melt plastic granules, and the injection mechanism (9) is used to inject molten plastic into the mold mechanism. The feeding mechanism (10) is used to convey plastic granules into the melting mechanism (8). The ejection mechanism (7) is provided below the support plate (12) and is used to eject the molded plastic product.

2. The disc-type vertical injection molding machine according to claim 1, characterized in that: The melting mechanism (8) includes a lifting seat (81), a barrel (82), a screw (83), and a first drive assembly (84); the first mounting seat (13) includes a base (131), a connector (132), and a second support rod (133). The base (131) is fixedly connected to the lifting plate (3). The bottom end of the second support rod (133) is fixedly connected to the base (131), and the top end of the second support rod (133) is fixedly connected to the connector (132). The second support rod (133) passes through the lifting seat (81). The lifting seat (81) and the second support rod (133) slide together. The barrel (82) is mounted on the lifting seat (81). The top and bottom ends of the barrel (82) are open. The screw (83) extends vertically and is rotatably mounted inside the barrel (82). The first drive assembly (84) is mounted on the lifting seat (81) and is used to drive the screw (83) to rotate.

3. A vertical disc injection molding machine according to claim 2, characterized in that: The first drive assembly (84) includes a second mounting base (841), a second motor (842), a first belt (843), a first drive pulley (844), and a first driven pulley (845); the second mounting base (841) is slidably engaged with the lifting base (81), the second motor (842) is fixed on the second mounting base (841), the first drive pulley (844) is sleeved on the output shaft of the second motor (842), the first driven pulley (845) is sleeved on the top end of the screw (83), and the first belt (843) is arranged around the first drive pulley (844) and the first driven pulley (845).

4. A vertical disc injection molding machine according to claim 1, characterized in that: The glue injection assembly includes a fixed base (91), a lead screw (92), a third motor (93), a second belt (94), a second driving pulley (95), and a second driven pulley (96). The fixed base (91) is fixedly connected to the support rod. The top end of the lead screw (92) passes through the fixed base (91) and is rotatably connected to the fixed base (91) through a bearing. The bottom end of the lead screw (92) is threadedly engaged with the second mounting base (841). The third motor (93) is fixed on the fixed base (91). The second driving pulley (95) is sleeved on the output shaft of the third motor (93). The second driven pulley (96) is sleeved on the top end of the lead screw (92) and is fixedly connected to the lead screw (92). The second belt (94) is arranged around the second driving pulley (95) and the second driven pulley (96).

5. A vertical disc injection molding machine according to claim 2, characterized in that: The feeding mechanism (10) is fixed on the lifting seat (81). The feeding mechanism (10) has a feeding channel. The side wall of the lifting seat (81) has a first feeding hole (85). The side wall of the material cylinder (82) has a second feeding hole (86). The bottom end of the feeding channel is connected to the first feeding hole (85). The first feeding hole (85) and the second feeding hole (86) are connected to each other. The second feeding hole (86) is connected to the inside of the material cylinder (82).

6. A vertical disc injection molding machine according to claim 1, characterized in that: The rotary drive mechanism (6) includes a first motor (61), a drive gear (62), and a driven gear (63). The first motor (61) is fixed to the lower surface of the support plate (12) of the housing (1). The output shaft of the first motor (61) passes through the support plate (12) and is rotatably connected to the support plate (12). The drive gear (62) is sleeved on the output shaft of the first motor (61) and is fixedly connected to the output shaft. The driven gear (63) is located on the upper surface of the support plate (12) and is rotatably connected to the support plate (12). The drive gear (62) and the driven gear (63) mesh with each other. The rotating disk (5) is fixed to the upper surface of the driven gear (63).

7. A vertical disc injection molding machine according to claim 1, characterized in that: The ejection mechanism (7) includes a fixed seat (91), an ejection plate (72), an ejection rod (73), and an ejection drive assembly (74). The fixed seat (91) is fixed to the lower surface of the bearing plate (12). The ejection drive assembly (74) is set on the fixed seat (91). The ejection drive assembly (74) is a hydraulic cylinder or a pneumatic cylinder. Its piston rod is fixedly connected to the ejection plate (72). There are multiple ejection rods (73). The bottom end of each ejection rod (73) is fixedly connected to the ejection plate (72). Multiple ejection holes are opened on opposite sides of the driven gear (63) and the rotating disk (5). The position and number of ejection holes on each side correspond one-to-one with the ejection rods (73).

8. A vertical disc injection molding machine according to claim 1, characterized in that: The mold mechanism includes a moving mold and a fixed mold. The moving mold is fixed to the lower surface of the lifting plate (3), and there are two fixed molds. Both fixed molds are fixed to the upper surface of the rotating disk (5). The moving mold and the fixed mold cooperate with each other to form plastic products and realize alternating production.

9. A vertical disc injection molding machine according to claim 1, characterized in that: A first protective cover (14) is fixedly installed on the support base (2).

10. A vertical disc injection molding machine according to claim 3, characterized in that: A second protective cover (15) is fixedly installed on the second mounting base (841). Both ends of the second protective cover (15) are open. The melting glue mechanism (8) and the glue injection mechanism (9) are both located inside the second protective cover (15).

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