Column mechanism and injection molding machine using same

Abstract

The invention discloses a machine column mechanism and an injection molding machine using the same, the machine column mechanism comprises a machine table, a stand column, a mounting seat, an injection module and a water removing port structure, the machine table is provided with a jig group, and the jig group is located at the edge of the machine table; the injection module is mounted on the mounting seat, and the injection module is positioned on the edge of the machine table; the water removing opening structure is located on the edge of the machine table; wherein the jig set is exposed out of the machine table, and gaps are formed between the ejection module and the jig set and between the water removing opening structure and the jig set. The stand columns with the structural supporting function are moved to the center from the periphery of equipment, the jig set, the injection module and the water removing opening structure are all located on the edge of a machine table and exposed outside, and all rigid obstacles surrounding the periphery of a mold are thoroughly removed. Therefore, the multi-station rotating tower or the rotating mold platform can freely rotate without any interference, and a physical foundation is laid for continuous and multi-station parallel operation.

Description

Technical Field

[0001] This invention relates to the field of injection molding, and particularly to a column mechanism and an injection molding machine using the same. Background Technology

[0002] As is well known, traditional injection molding machines are typically designed with external support columns, meaning the support columns that bear the clamping force and ensure machine rigidity are located around the outside of the machine. While this classic design is simple in structure and easy to manufacture, it has gradually revealed many limitations in modern manufacturing environments where automation and flexible production are becoming increasingly mainstream. External support columns create significant obstacles in physical space. When a turntable or turret with multiple molds needs to rotate for multi-color and multi-material injection molding, its rotation path is interfered with by the support columns. This results in the product being restricted to rotating only within the limited space between the columns, greatly limiting the flexibility of mold layout and the working range of the equipment. At the same time, these external support columns also obstruct the access paths of automated equipment such as robotic arms and robots, making operations such as automatic product handling, insert installation, and subsequent processing difficult, hindering the achievement of truly fully automated production. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. To this end, the present invention proposes a column mechanism that can avoid the arrangement of the column from hindering the production process.

[0004] The present invention also proposes an injection molding machine having the above-mentioned column mechanism.

[0005] According to a first aspect of the present invention, a column mechanism includes: a machine base, a column, a mounting base, an injection mold, and a sprue removal structure. The machine base is provided with a jig assembly located at the edge of the machine base. The column is installed in the middle of the machine base. The mounting base is installed on the column, and a gap is formed between the mounting base and the jig assembly. The injection mold is installed on the mounting base and is used for injection molding operations at the jig assembly, located at the edge of the machine base. The sprue removal structure is installed on the mounting base and is used for removing sprues from the material at the jig assembly, located at the edge of the machine base. The jig assembly is exposed outside the machine base, and both the injection mold and the sprue removal structure are separated from the jig assembly by gaps.

[0006] The column mechanism according to embodiments of the present invention has at least the following beneficial effects: By moving the structurally supporting columns from the periphery of the equipment to the center, and placing the jig assembly, injection module, and sprue structure at the edge of the machine and exposing them, all rigid obstacles surrounding the mold are completely removed. This allows multi-station turrets or rotating mold platforms to rotate freely without any interference, laying the physical foundation for continuous, multi-station parallel operations. Secondly, this layout greatly facilitates automation integration. Robots or robotic arms can approach the jig assembly from any angle to pick up products, place inserts, or perform online inspections without the need for complex path planning to bypass the column, simplifying system integration and improving the operability and reliability of the automation unit. Furthermore, arranging the injection module and sprue structure together at the edge and mounting them on the same base forms a compact functional unit, facilitating access for maintenance personnel and improving equipment maintainability.

[0007] According to some embodiments of the present invention, the machine tool has an inner cavity in the middle, the inner cavity being used to house at least one of the tube component, the wire component, and the chain component, and the column is installed in the inner cavity and extends out of the inner cavity.

[0008] According to some embodiments of the present invention, the machine tool is provided with a surrounding plate that surrounds the outer periphery of the inner cavity and encloses the edge of the inner cavity.

[0009] According to some embodiments of the present invention, the columns are configured as multiple columns, each column is connected to the mounting base and can jointly support the mounting base; each column is located in the inner cavity, and the fixture assembly, the injection module and the sprue structure are located outside the inner cavity and distributed around the inner cavity.

[0010] According to some embodiments of the present invention, nuts are installed at both ends of the column, one end of the column is fixedly connected to the machine base by the nut, and the other end of the column is connected to the mounting base by the nut.

[0011] According to some embodiments of the present invention, the injection module includes a first injection device and a second injection device, the first injection device and the second injection device being used for injection molding of parts of different shapes, materials, colors or sizes, the first injection device and the second injection device being located at the edge of the machine base and distributed around the column.

[0012] According to some embodiments of the present invention, the first injection device includes an injection cylinder, a material flow pipe, and a screw extrusion module, all mounted on the mounting base and connected in sequence. The material flow pipe is provided with a feeding port, and the screw extrusion module is capable of injection molding at the fixture assembly. A mold closing cylinder is also provided on the mounting base, and the mold closing cylinder is connected to a mold closing plate and is capable of driving its movement.

[0013] According to some embodiments of the present invention, the second injection device includes a mold-locking injection hydraulic circuit board assembly, an oil injector, an oil valve, and an oil tank mounted on the mounting base, wherein the mold-locking injection hydraulic circuit board assembly, the oil injector, and the oil valve are all connected to the oil tank.

[0014] According to some embodiments of the present invention, the water outlet structure is located between the first injection device and the second injection device.

[0015] An injection molding machine according to a second aspect of the present invention includes a column mechanism according to the first aspect of the present invention described above.

[0016] The injection molding machine according to embodiments of the present invention has at least the following beneficial effects: By moving the structural support columns from the periphery of the equipment to the center, and placing the jig assembly, injection mold assembly, and sprue structure at the edge of the machine and exposing them, all rigid obstacles surrounding the mold are completely removed. This allows multi-station turrets or rotating mold platforms to rotate freely without any interference, laying the physical foundation for continuous, multi-station parallel operations. Secondly, this layout greatly facilitates automation integration. Robots or robotic arms can approach the jig assembly from any angle to pick up products, place inserts, or perform online inspections without the need for complex path planning to bypass the machine columns, simplifying system integration and improving the operability and reliability of the automation unit. Furthermore, arranging the injection mold assembly and sprue structure together at the edge and mounting them on the same base forms a compact functional unit, facilitating access for maintenance personnel and improving equipment maintainability.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the column mechanism according to an embodiment of the present invention; Figure 2 for Figure 1 The diagram shows the positional relationship of the structure of the machine column mechanism; Figure 3 for Figure 1 A top view schematic diagram of the machine column mechanism is shown; Figure 4 for Figure 1 A schematic diagram showing the connection of the mounting base for the machine column mechanism; Figure 5 for Figure 1 A schematic diagram showing the disassembled structure of the column mechanism; Figure 6 for Figure 1 A schematic diagram of the first injection device of the column mechanism is shown; Figure 7 for Figure 1 A schematic diagram of the second injection device of the column mechanism is shown; Reference numerals: Machine base 100; Fixture assembly 200; Injection mold assembly 300; First injection device 310; Injection cylinder 311; Screw extrusion assembly 312; Mold closing cylinder 313; Feed interface 314; Flow pipe 315; Mold closing plate 318; Second injection device 320; Mold locking injection hydraulic circuit board assembly 322; Oil injector 323; Oil valve 324; Oil tank 321; Column 400; Nut 450; Mounting base 500; Drain outlet structure 700; Inner cavity 900; Enclosure plate 950; Detailed Implementation Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0019] In the description of this invention, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] In the description of this invention, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0021] In the description of this invention, unless otherwise explicitly defined, terms such as "set up," "install," and "connect" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this invention in conjunction with the specific content of the technical solution.

[0022] Reference Figure 1 and Figure 2 A machine column mechanism includes: a machine base 100, a column 400, a mounting base 500, an injection module 300, and a drain outlet structure 700. The machine base 100 is provided with a jig assembly 200, which is located at the edge of the machine base 100; the column 400 is installed in the middle of the machine base 100; the mounting base 500 is installed on the column 400, and there is a gap between the mounting base 500 and the jig assembly 200; the injection module 300 is installed on the mounting base 500. The injection mold 300 is used for injection molding at fixture 200, and the injection mold 300 is located at the edge of the machine base 100. The sprue removal structure 700 is mounted on the mounting base 500 and is used to remove sprues from the material at fixture 200. The sprue 200 is exposed outside the machine base 100, and both the injection mold 300 and the sprue removal structure 700 are separated from fixture 200 by gaps. By moving the structural support column 400 from the periphery of the equipment to the center, and placing fixture 200, injection mold 300, and sprue removal structure 700 at the edge of the machine base 100 and exposing them, all rigid obstacles surrounding the mold are completely removed. This allows multi-station turrets or rotating mold platforms to rotate freely without interference, providing a physical basis for continuous, multi-station parallel operations. Secondly, this layout greatly facilitates automation integration. Robots or robotic arms can approach the fixture assembly 200 from any angle to pick up products, place inserts, or perform online inspections without the need for complex path planning to avoid machine columns, simplifying system integration and improving the operability and reliability of the automation unit. Furthermore, by arranging the injection module 300 and the dewatering structure 700 together at the edge and mounting them on the same mounting base 500, a compact functional unit is formed, facilitating access for maintenance personnel and improving equipment maintainability.

[0023] In specific implementation, the machine base 100 can be designed as a large circular or regular polygonal platform with a robust load-bearing structure at the center. The column 400 is preferably a single, thick, hollow cylinder, the interior of which can be used as a pipeline channel. The mounting base 500 is a robust cross-shaped, star-shaped, or circular frame extending outwards from the center. The fixture group 200 can be multiple independent mold stations arranged equidistantly around a center on a rotatable turntable, which can be designed as an eight-station turntable to achieve multi-color and multi-material injection molding. Specific implementations of the injection module 300 include, but are not limited to: integrating the runner system within the arm of the mounting base 500, with standardized nozzle interfaces at the ends for quick docking with different molds. The sprue structure 700 can be a shearing device integrated into a robotic arm, or a hydraulic or pneumatic punching and shearing mechanism independently set at each station. The core of this embodiment is that all action units radiate from the center, creating an open and unobstructed working area.

[0024] In some embodiments, reference is made to Figure 3 The machine tool 100 has an inner cavity 900 in its central part. The inner cavity 900 is used to house at least one of the pipe components, wire components, and chain components. The column 400 is installed in the inner cavity 900 and extends beyond it. By setting the inner cavity 900 in the middle, all pipelines that would otherwise need to be externally mounted or routed, such as hydraulic pipes, high-voltage wires, sensor cables, and cooling water pipes, are housed within the inner cavity 900. This centralized housing not only makes the equipment look neater, but more importantly, it effectively avoids damage to pipelines that may be caused by exposure, such as contamination from splashed materials, scratches from moving parts, or damage due to human factors, thereby improving the reliability and service life of the equipment. At the same time, centralized pipeline arrangement facilitates daily inspection and troubleshooting, allowing maintenance personnel to monitor and maintain the pipeline status in a centralized area. Furthermore, the built-in cavity structure also enhances the overall rigidity and stability of the machine tool 100, indirectly contributing to vibration suppression and improved molding accuracy.

[0025] Furthermore, the inner cavity 900 can be designed as an openable modular cable management system. Specifically, the machine base 100 has a large through-hole at its center, through which the column 400 passes. The annular space surrounding the column 400 and the inner wall of the through-hole is used to organize and guide the cables via a modular cable chain system or rotary joints. For cables that need to connect to rotating components, a circular central rotary distributor can be used to ensure that cable connections do not become tangled or broken during turntable rotation. A removable protective cover can be installed at the opening of the inner cavity 900, ensuring both safety and ease of maintenance. This design is particularly suitable for multi-station injection molding machines with rotary tables, perfectly solving the cable management challenges during rotation.

[0026] In some embodiments, reference is made to Figure 4The machine base 100 is equipped with a surrounding panel 950, which surrounds the outer perimeter of the inner cavity 900 and encloses its edge. The surrounding panel 950, enclosing the inner cavity 900, forms a physical barrier, effectively preventing operators from accidentally contacting moving parts or high-temperature, high-pressure pipeline joints within the inner cavity 900, reducing the risk of workplace injuries. Simultaneously, it prevents dust, oil, and splashed plastic debris from entering the inner cavity 900, protecting the delicate internal pipelines and connections and maintaining the cleanliness of the equipment. The surrounding panel 950 also serves as a sound and heat insulation layer, helping to reduce the outward diffusion of noise and heat generated during equipment operation, creating a more comfortable working environment.

[0027] Furthermore, the enclosure 950 can be made of stainless steel or high-strength engineering plastics, combining durability and aesthetics. The enclosure 950 can be designed with double-sided opening doors or a front and rear pull-out structure for easy and quick opening for maintenance operations. A transparent observation window can also be integrated into the enclosure 950, allowing operators to observe the basic condition of the internal pipelines without opening the doors. In addition, sound-absorbing cotton or heat-insulating materials can be added to the inside of the enclosure 950 to further enhance its noise reduction and heat insulation effects.

[0028] In some embodiments, reference is made to Figure 5 Multiple columns 400 are configured, each connected to and supporting the mounting base 500. Each column 400 is located within the inner cavity 900, while the jig assembly 200, injection mold assembly 300, and sprue removal structure 700 are located outside and surrounding the inner cavity 900. These multiple columns 400 collectively support the mounting base 500 and all loads within the inner cavity 900, forming a strong and robust support structure. This structure better resists unbalanced moments and impact loads generated during mold closing, effectively suppressing vibration and ensuring minimal deformation of the mounting base 500 during operation, providing a solid mechanical foundation for high-precision injection molding. The evenly distributed columns 400 uniformly transmit the mold closing force to the machine base 100, avoiding stress concentration and contributing to the long-term maintenance of equipment accuracy. The fact that multiple columns 400 share the load also allows for a reduction in the size of each column 400 while maintaining overall rigidity, thus saving more space in the inner cavity 900 for wiring.

[0029] Preferably, the machine base 100 has three or four columns 400, which are fixed to the bottom of the inner cavity 900 in an equilateral triangle or square layout and firmly connected to the mounting base 500 at the top. The columns 400 themselves can be solid or hollow steel cylinders. To improve rigidity and stability, transverse connecting plates can be added at an appropriate height between the multiple columns 400 to form a spatial frame structure.

[0030] It is conceivable that one or more of the columns 400 could be designed as hollow pipes, specifically for passing through the main hydraulic quick-connect pipes or power cables, to achieve pipeline classification and management. All columns 400 are located inside the inner cavity 900 and surrounded by the enclosure 950, ensuring a completely clean and unobstructed external view.

[0031] In some embodiments, reference is made to Figure 5 Both ends of the column 400 are equipped with nuts 450. One end of the column 400 is fixedly connected to the machine base 100 via the nut 450, and the other end of the column 400 is connected to the mounting base 500 via the nut 450. Using nuts 450 for fixing, rather than welding or interference fit, allows for precise adjustment of the verticality and preload of the column 400 during final tightening, ensuring the column 400 is in optimal stress state and preventing a decrease in equipment accuracy due to installation stress. This connection method greatly facilitates equipment transportation and on-site installation; large injection molding machines can be transported in parts and reassembled on-site, reducing transportation difficulty and costs. During routine maintenance, if a component needs to be replaced or adjusted, disassembly can be performed easily.

[0032] In practical implementation, precision-machined mounting flanges should be installed at the connection points between the machine base 100 and the mounting base 500 and the column 400. High-strength threads should be machined at both ends of the column 400. The fixing nut 450 should be a high-strength self-locking nut 450, used in conjunction with a high-strength washer to prevent loosening of the equipment under long-term vibration. To facilitate adjustment of the verticality of the column 400, a precision wedge-shaped adjusting shim can be added between the flange and the nut 450. A more advanced embodiment involves installing a stress sensor at the tightening position of the nut 450 to monitor the preload of the column 400 during installation, ensuring it remains within the optimal range, thereby achieving data-driven and precise installation.

[0033] In some embodiments, reference is made to Figure 3The injection module 300 includes a first injection unit 310 and a second injection unit 320. The first and second injection units 310 and 320 are used for injection molding parts of different shapes, materials, colors, or sizes. Both the first and second injection units 310 and 320 are located at the edge of the machine base 100 and distributed around the column 400. The dual injection units are key to realizing the molding of complex products with multiple materials and colors. Their beneficial effect is that they greatly expand the process capabilities of the injection molding machine. Through two independent injection units, complex products composed of a combination of rigid plastic and soft rubber, different color materials, or even transparent and opaque materials can be produced in one go without secondary processing, significantly improving production efficiency and product added value. The first and second injection units 310 and 320 are arranged around the central column 400, allowing simultaneous injection into different gates of a single mold, which is beneficial for the uniform filling of large products. Alternatively, they can alternately inject into different molds on the turret, achieving multi-purpose use and improving equipment utilization.

[0034] In practical implementation, the first injection unit 310 and the second injection unit 320 can be designed with different performance characteristics to meet diverse needs. For example, the first injection unit 310 can be a unit designed for engineering plastics with large injection volume and high injection pressure; while the second injection unit 320 can be a high-precision, corrosion-resistant unit designed for thermoplastic elastomers or liquid silicone. Their control is completely independent, collaboratively controlled by an industrial computer, allowing for precise setting of their respective injection parameters and timing. In practical applications, they can be used with a rotary mold or a multi-cavity mold to achieve advanced processes such as "two-color injection molding" or "sandwich injection molding." The mounting base 500 needs to provide stable support and precise positioning reference for the two injection units.

[0035] In some embodiments, reference is made to Figure 6 The first injection unit 310 includes an injection cylinder 311, a flow channel 315, and a screw extrusion module 312, all mounted on the mounting base 500 and connected in sequence. The flow channel 315 is equipped with a feed port 314, and the screw extrusion module 312 can perform injection molding at the fixture assembly 200. A mold clamping cylinder 313 is also mounted on the mounting base 500, connected to a mold clamping platen 318 and capable of driving its movement. The screw extrusion module 312 is the core component for thermoplastic plasticizing; its rotational shearing and external heating work together to ensure uniform melting of the plastic. The flow channel 315 smoothly delivers the melt to the mold, and its heat preservation performance directly affects the melt quality. The independent injection cylinder 311 provides the high pressure required for injection and holding pressure, ensuring the dimensional accuracy of the product. The added mold clamping cylinder 313 is responsible for locking the mold; its stability is crucial for preventing flash and ensuring safety. This modular design allows each part to have a specialized function, making performance easy to optimize.

[0036] It is anticipated that the screw extrusion module 312 will employ a combination of a high-efficiency barrier screw and a ceramic heating coil to achieve rapid and uniform plasticization. The interior of the flow channel 315 can undergo special mirror polishing and treatment, and be wrapped with a double-layer heat insulation sleeve to reduce melt retention and thermal decomposition. The injection cylinder 311 can be driven by a servo motor-driven ball screw or a servo valve-controlled hydraulic cylinder to achieve ultra-precise injection speed and control. The clamping cylinder 313 can be designed with a differential circuit to achieve smooth transitions between rapid mold movement and low-speed, high-pressure mold clamping. All these components are mounted on the cantilever of the mounting base 500 via high-rigidity brackets, ensuring precise alignment with the mold nozzle.

[0037] In some embodiments, reference is made to Figure 7 The second injection unit 320 includes a clamping injection hydraulic circuit board assembly 322, an oil injector 323, an oil valve 324, and an oil tank 321, all mounted on the mounting base 500. The clamping injection hydraulic circuit board assembly 322, the oil injector 323, and the oil valve 324 are all connected to the oil tank 321. The clamping injection hydraulic circuit board assembly 322, the oil injector 323, the oil valve 324, and the oil tank 321 constitute a complete hydraulic system, providing the necessary large and controllable power for clamping and injection. The hydraulic system has the advantages of high output, fast response, and mature control technology, making it particularly suitable for molding large products requiring high clamping forces. By integrating the hydraulic system into the second injection unit 320, the power source is closer to the actuator, reducing pressure loss and improving response speed. Simultaneously, it complements the first injection unit 310, meeting diverse production needs.

[0038] Furthermore, this hydraulic system can be designed as a closed-loop servo hydraulic system to achieve high energy efficiency and low noise. Specifically, it includes a variable displacement axial piston pump, driven by a servo motor, which provides flow and pressure on demand, fundamentally saving energy. In some embodiments, reference is made to Figure 3 The sprue removal structure 700 is located between the first injection unit 310 and the second injection unit 320. The layout of the sprue removal structure 700 ensures that the sprue removal operation is physically centered between the first injection unit 310 and the second injection unit 320. Regardless of which position the turret rotates the mold to, the distance from the actuator of the sprue removal structure 700 to each mold is relatively balanced, resulting in a short and efficient movement path. This helps to shorten the time of this auxiliary action, thereby shortening the overall injection molding cycle. The balanced layout also contributes to the stability of the equipment's center of gravity, reducing vibrations that may be caused by uneven mass distribution of moving parts.

[0039] In practical implementation, the sprue removal structure 700 can be implemented as a multi-degree-of-freedom robotic arm, with its base fixed to a central mounting base 500. The end effector of the robotic arm can be a customized sprue clamp or a hydraulic punching and shearing device. Due to its central position, the robotic arm can cover the sprues of multiple mold stations on the turntable. The control system can be programmed to set the movement trajectory of the robotic arm, enabling it to sequentially or selectively complete the sprue removal work for multiple molds within one injection cycle, greatly improving the degree of automation.

[0040] Another simpler implementation is to design a small pneumatic shearing device at each mold station, while the central sprue removal structure 700 mainly provides a collection device for uniformly sucking up and recycling the sprues cut off from each station.

[0041] A second aspect of the present invention provides an embodiment of an injection molding machine, including the aforementioned column mechanism. By moving the structurally supporting column 400 from the periphery of the equipment to the center, and placing the fixture assembly 200, injection mold 300, and sprue removal structure 700 at the edge of the machine base 100 and exposing them, all rigid obstacles surrounding the mold are completely removed. This allows multi-station turrets or rotating mold platforms to rotate freely without any interference, laying the physical foundation for continuous, multi-station parallel operations. Secondly, this layout greatly facilitates automation integration. Robots or robotic arms can approach the fixture assembly 200 from any angle to perform product picking, insert placement, or online inspection without complex path planning to bypass the column, simplifying system integration and improving the operability and reliability of the automation unit. Furthermore, arranging the injection mold 300 and sprue removal structure 700 together at the edge and mounting them on the same mounting base 500 forms a compact functional unit, facilitating access for maintenance personnel and improving equipment maintainability.

[0042] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0043] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A kingpin mechanism, characterized by, It includes: A machine table (100) provided with a jig group (200) located at the edge of the machine table (100); A column (400) mounted in the middle of the machine table (100); A mounting seat (500) mounted on the column (400), and a gap between the mounting seat (500) and the jig group (200); An injection mold group (300) mounted on the mounting seat (500), used for injection molding work on the jig group (200), located at the edge of the machine table (100); A water outlet structure (700) mounted on the mounting seat (500), used for water outlet removal of the material on the jig group (200), located at the edge of the machine table (100); wherein, The jig group (200) is exposed outside the machine table (100), and the injection mold group (300) and the water outlet structure (700) are both spaced apart from the jig group (200).

2. The column mechanism of claim 1, wherein: The middle of the machine table (100) is provided with an inner cavity (900) for receiving at least one of a pipe component, a wire component and a chain component, and the column (400) is mounted in the inner cavity (900) and extends out of the inner cavity (900).

3. The column mechanism of claim 2, wherein: The machine table (100) is provided with a surrounding plate (950) surrounding the outer periphery of the inner cavity (900) and surrounding the edge of the inner cavity (900).

4. The column mechanism of claim 2, wherein: The column (400) is provided in multiple, each of the columns (400) is connected with the mounting seat (500) and can jointly support the mounting seat (500); each of the columns (400) is located in the inner cavity (900), and the jig group (200), the injection mold group (300) and the water outlet structure (700) are located outside the inner cavity (900) and distributed around the inner cavity (900).

5. The column mechanism of claim 1, wherein: Both ends of the column (400) are provided with nuts (450), one end of the column (400) is fixedly connected with the machine table (100) through the nut (450), and the other end of the column (400) is connected with the mounting seat (500) through the nut (450).

6. The column mechanism of claim 1, wherein: The injection module (300) comprises a first injection device (310) and a second injection device (320), the first injection device (310) and the second injection device (320) are used for injection molding parts with different shapes, materials, colors or sizes, and the first injection device (310) and the second injection device (320) are located at the edge of the machine table (100) and are distributed around the column (400).

7. The column mechanism of claim 6, wherein: The first injection device (310) comprises an injection cylinder (311), a flow pipe (315) and a screw extrusion module (312) which are sequentially connected and installed on the mounting seat (500), the flow pipe (315) is provided with a feeding interface (314), and the screw extrusion module (312) can injection mold at the jig group (200); a clamping cylinder (313) is further arranged on the mounting seat (500), the clamping cylinder (313) is connected with a clamping plate (318) and can drive the clamping plate (318) to move.

8. The column mechanism of claim 6, wherein: The second injection device (320) comprises a mold locking injection oil circuit board group (322), an oil injector (323), an oil valve (324) and an oil tank (321) which are installed on the mounting seat (500), and the mold locking injection oil circuit board group (322), the oil injector (323) and the oil valve (324) are connected with the oil tank (321).

9. The column mechanism of claim 6, wherein: The water outlet structure (700) is located between the first injection device (310) and the second injection device (320).

10. An injection molding machine characterized by, The column mechanism comprises any one of claims 1-9.

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